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Commit c25e6134 by FritzFlorian
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WIP: Add fcontext and thread sanitizer support to our coroutine abstraction.

parent 4a44ad9f
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app/benchmark_fft/main.cpp
......@@ -37,7 +37,7 @@ void conquer(fft::complex_vector::iterator data, int n) {
constexpr int MAX_NUM_THREADS = 8;
constexpr int MAX_NUM_TASKS = 32;
constexpr int MAX_STACK_SIZE = 1024 * 1;
constexpr int MAX_STACK_SIZE = 1024 * 4;
static_scheduler_memory<MAX_NUM_THREADS,
MAX_NUM_TASKS,
......
app/benchmark_fib/main.cpp
......@@ -33,7 +33,7 @@ int pls_fib(int n) {
constexpr int MAX_NUM_THREADS = 8;
constexpr int MAX_NUM_TASKS = 32;
constexpr int MAX_STACK_SIZE = 1024 * 1;
constexpr int MAX_STACK_SIZE = 1024 * 64;
static_scheduler_memory<MAX_NUM_THREADS,
MAX_NUM_TASKS,
......@@ -51,6 +51,7 @@ int main(int argc, char **argv) {
scheduler scheduler{global_scheduler_memory, (unsigned) num_threads};
volatile int res;
scheduler.perform_work([&]() {
for (int i = 0; i < fib::NUM_WARMUP_ITERATIONS; i++) {
res = pls_fib(fib::INPUT_N);
......
app/playground/main.cpp
......@@ -6,34 +6,21 @@ using namespace context_switcher;
using namespace std;
// Memory for custom stack and continuation semantics
const size_t STACK_SIZE = 512 * 16;
const size_t STACK_SIZE = 512 * 32;
const size_t NUM_STACKS = 4;
char custom_stacks[NUM_STACKS][STACK_SIZE];
volatile int result;
int main() {
context_switcher::continuation outer_cont = enter_context(custom_stacks[0], STACK_SIZE, [](continuation &&main_cont) {
enter_context(custom_stacks[1], STACK_SIZE, [&main_cont](continuation &&middle_cont) {
enter_context(custom_stacks[2], STACK_SIZE, [&main_cont](continuation &&inner_cont) {
for (int i = 0; i < 10; i++) {
printf("Inner %d\n", i);
main_cont = context_switcher::switch_context(std::move(main_cont));
}
return std::move(inner_cont);
});
return std::move(middle_cont);
while (true) {
context_switcher::continuation cont = enter_context(custom_stacks[0], STACK_SIZE, [](continuation &&main_cont) {
// main_cont = context_switcher::switch_context(std::move(main_cont));
return std::move(main_cont);
});
return std::move(main_cont);
});
for (int i = 0; i < 10; i++) {
printf("Outer %d\n", i);
outer_cont = context_switcher::switch_context(std::move(outer_cont));
}
// cont = context_switcher::switch_context(std::move(cont));
};
return 0;
}
cmake/SetupThreadSanitizer.cmake
......@@ -6,5 +6,7 @@ option(THREAD_SANITIZER "Add thread sanitizer" OFF)
if (THREAD_SANITIZER)
add_compile_options(-fsanitize=thread -g -fno-omit-frame-pointer)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=thread -fno-omit-frame-pointer")
add_compile_definitions(THREAD_SANITIZER)
endif ()
message("-- Thread Sanitizer: ${THREAD_SANITIZER}")
lib/context_switcher/CMakeLists.txt
......@@ -7,23 +7,54 @@ project(context_switcher
set(CMAKE_CXX_STANDARD 11)
# Platform Support - Edit this when porting the context switch facility.
# We are rather conservative with our flags, maybe more systems follow implemented calling conventions.
# See our documentation and boost context for help when adding a new system.
if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
SET(CONTEXT_SWITCH_ASSEMBLY "asm/enter_context_x86_64.s" "asm/switch_context_x86_64.s")
elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7l" AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
SET(CONTEXT_SWITCH_ASSEMBLY "asm/enter_context_arm32.s" "asm/switch_context_arm32.s")
# Settings:
# CS_USE_BOOST = ON/OFF Use boost's fcontext as the assembly implementation for the context switch.
# CS_USE_FAST = ON/OFF Use custom implementation optimized for fast creation/return context switch.
# CMAKE_SYSTEM_PROCESSOR = String Target processor
# CMAKE_SYSTEM_NAME = String Target
#
# Typically cross compiling in cmake will set CMAKE_SYSTEM_PROCESSOR and CMAKE_SYSTEM_NAME.
# The library uses these two to select the correct assembly file for performing the context switch.
# We currently only include minimal system support in our config file. The fastest way to port the
# library is to see if one of the boost.context assembly files matches your target platform and adding
# that to tho selection script.
#
# By default we use CS_USE_FAST if available and fall back to CS_USE_BOOST if needed.
# When sanitizers are turned on (or other instrumentation) we recommend to use CS_USE_BOOST
# as its calling convention causes no problems with function entry/exit instrumentation.
message("-- Configure Context Switcher: ${CMAKE_SYSTEM_PROCESSOR} running ${CMAKE_SYSTEM_NAME}")
include(asm/cscontext/SelectAssemblyFiles.cmake)
include(asm/fcontext/SelectAssemblyFiles.cmake)
if (CS_CSCONTEXT_FOUND AND NOT THREAD_SANITIZER AND NOT CS_FORCE_FALLBACK)
MESSAGE("-- Using cscontext implementation")
SET(CS_CONTEXT_SWITCH_ASSEMBLY ${CS_CSCONTEXT_ASSEMBLY})
SET(CS_USE_CSCONTEXT TRUE)
elseif (CS_FCONTEXT_FOUND)
if (THREAD_SANITIZER)
MESSAGE("-- Falling back to fcontext implementation (thread sanitizer active)")
else ()
MESSAGE("-- Falling back to fcontext implementation")
endif ()
SET(CS_CONTEXT_SWITCH_ASSEMBLY ${CS_FCONTEXT_ASSEMBLY})
SET(CS_USE_CSCONTEXT FALSE)
else ()
MESSAGE(FATAL_ERROR "Platform (${CMAKE_SYSTEM_PROCESSOR} on ${CMAKE_SYSTEM_NAME}) not supported! Please see Readme for instructions to port.")
endif ()
message("-- Context Switcher: ${CMAKE_SYSTEM_PROCESSOR} running ${CMAKE_SYSTEM_NAME}")
message("-- Configure Context Switcher: Configuration Done")
add_library(context_switcher STATIC
${CONTEXT_SWITCH_ASSEMBLY}
${CS_CONTEXT_SWITCH_ASSEMBLY}
include/context_switcher/context_switcher.h src/context_switcher.cpp
include/context_switcher/assembly_bindings.h
include/context_switcher/cscontext.h
include/context_switcher/fcontext.h
include/context_switcher/continuation.h
include/context_switcher/lambda_capture.h)
include/context_switcher/lambda_capture.h include/context_switcher/context.h)
if (CS_USE_CSCONTEXT)
target_compile_definitions(context_switcher PUBLIC CS_USE_CSCONTEXT)
endif ()
# Add everything in `./include` to be in the include path of this project
target_include_directories(context_switcher
......
lib/context_switcher/asm/cscontext/SelectAssemblyFiles.cmake 0 → 100644
# Tries to locate the correct CS_FAST_ASSEMBLY files for this platform and
# sets CS_CSCONTEXT_FOUND to true if the platform is supported.
#
# To add a platform add a clause locating the correct assembly implementations for the system.
SET(CS_CSCONTEXT_FOUND TRUE)
if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
# Typical Linux running on x86_64
SET(CS_CSCONTEXT_ASSEMBLY
asm/cscontext/enter_context_x86_64_sysv_elf.s
asm/cscontext/switch_context_x86_64_sysv_elf.s)
else ()
SET(CS_CSCONTEXT_FOUND FALSE)
endif ()
if (CS_CSCONTEXT_FOUND)
MESSAGE("-- CS_CSCONTEXT_FOUND: ${CS_CSCONTEXT_ASSEMBLY}")
else ()
MESSAGE("-- CS_CSCONTEXT_FOUND: NOT FOUND")
endif ()
lib/context_switcher/asm/enter_context_x86_64.s → lib/context_switcher/asm/cscontext/enter_context_x86_64_sysv_elf.s
......@@ -17,11 +17,9 @@ __cs_enter_context:
# Variables
# r12 = temporary for the old stack pointer
pushq %rbp
movq %rsp, %rbp
subq $0x38, %rsp
############### Save State ###############
# Make space on the stack
leaq -0x38(%rsp), %rsp
# Store calee saved general registers.
movq %r12, 0x00(%rsp)
movq %r13, 0x08(%rsp)
......@@ -43,12 +41,13 @@ __cs_enter_context:
# Switch to new stack pointer.
movq %rdi, %rsp
# Init the new stack (in our case we want the stack trace to 'stick' to where it was created.
# This will not necessary be valid all the time (thus returning into it is not ok), but
# we only use it for debugging as we explicitly state throwing exceptions beyond the fiber is not ok.
# pushq 0x8(%rbp)
# pushq 0x0(%rbp)
# movq %rsp, %rbp
# Init the new stack to something reasonable.
# Here we point it at the finish part of our function with the frame pointer at 0x0.
# This is not stricly required, but stops debuggers/tools from freaking out.
leaq __cs_finish(%rip), %r13
pushq %r13
pushq $0x0
movq %rsp, %rbp
# Perform actual function call, this will now be on the new stack
# rdi = first parametor to callback (continuation)
......@@ -73,12 +72,18 @@ __cs_enter_context:
ldmxcsr 0x30(%rsp)
# restore x87 control-word
fldcw 0x34(%rsp)
# Free space on the stack
leaq 0x38(%rsp), %rsp
############ Restore State ############
# Just return back from the call.
# This is the end of a fiber, so we have no continuation.
xor %rax, %rax
movq %rbp, %rsp
popq %rbp
ret
__cs_finish:
# exit code is zero
xorq %rdi, %rdi
# exit application
call _exit@PLT
hlt
lib/context_switcher/asm/switch_context_x86_64.s → lib/context_switcher/asm/cscontext/switch_context_x86_64_sysv_elf.s
......@@ -11,11 +11,9 @@ __cs_switch_context:
# Return
# rax = continuation that returned control back to the caller (null if fallthrough)
pushq %rbp
movq %rsp, %rbp
subq $0x38, %rsp
############### Save State ###############
# Make space on the stack
leaq -0x38(%rsp), %rsp
# Store calee saved general registers.
movq %r12, 0x00(%rsp)
movq %r13, 0x08(%rsp)
......@@ -47,10 +45,10 @@ __cs_switch_context:
ldmxcsr 0x30(%rsp)
# restore x87 control-word
fldcw 0x34(%rsp)
# Free space on the stack
leaq 0x38(%rsp), %rsp
############ Restore State ############
# Return the context we came from as a continuation.
# rax has already the correct value
movq %rbp, %rsp
popq %rbp
ret
lib/context_switcher/asm/enter_context_arm32.s deleted 100644 → 0
.arm
.text
.global __cs_enter_context
.type __cs_enter_context, %function
__cs_enter_context:
/* Parameter List (in order)
* r0 = new stack pointer
* r1 = first parameter to callback
* r2 = callback function pointer
* r3 = new stack limit (not used on most platforms)
*
* Return
* r0 = continuation that returned control back to the caller (null if fallthrough)
*
* Variables
* r4 = temporary for the old stack pointer */
/* ========== Save State ========== */
/* store programm counter for later return */
push {lr}
/* store callee saved registers */
push {r4-r12,lr}
/* ========== Save State ========== */
/* Perform change to new stack */
/* Keep old stack as second parameter to our callback function. */
mov r4, sp
/* Make sure that stack start is properly aligned. */
and r0, r0, #-16
/* Switch to new stack pointer. */
mov sp, r0
/* Perform actual function call, this will now be on the new stack */
/* r0 = first parametor to callback (continuation) */
/* r1 = second parameter to callback (arbetary pointer) */
mov r0, r4
blx r2
/* Restore state of returned continuation. */
/* To do so we first reset the stack pointer (which we get returned in r0). */
/* After that we execute our standard restore procedere to pop the state from the stack. */
mov sp, r0
/* ========== Restore State ========== */
/* restore callee saved registers */
pop {r4-r12,lr}
/* ========== Restore State ========== */
/* Just return back from the call. */
/* This is the end of a fiber, so we have no continuation. */
eor r0, r0, r0
pop {pc}
lib/context_switcher/asm/fcontext/SelectAssemblyFiles.cmake 0 → 100644
# Tries to locate the correct CS_FCONTEXT_ASSEMBLY files for this platform and
# sets CS_FCONTEXT_FOUND to true if the platform is supported.
#
# To add a platform add a clause locating the correct assembly implementations for the system.
SET(CS_FCONTEXT_FOUND TRUE)
if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
# Typical Linux running on x86_64
SET(CS_FCONTEXT_ASSEMBLY
asm/fcontext/jump_x86_64_sysv_elf_gas.S
asm/fcontext/make_x86_64_sysv_elf_gas.S
asm/fcontext/ontop_x86_64_sysv_elf_gas.S)
elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7l" AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
# Typical Linux running on ARMv7
SET(CS_FCONTEXT_ASSEMBLY
asm/fcontext/jump_arm_aapcs_elf_gas.S
asm/fcontext/make_arm_aapcs_elf_gas.S
asm/fcontext/ontop_arm_aapcs_elf_gas.S)
else ()
SET(CS_FCONTEXT_FOUND FALSE)
endif ()
if (CS_FCONTEXT_FOUND)
MESSAGE("-- CS_FCONTEXT_FOUND: ${CS_FCONTEXT_ASSEMBLY}")
else ()
MESSAGE("-- CS_FCONTEXT_FOUND: NOT FOUND")
endif ()
lib/context_switcher/asm/fcontext/jump_arm64_aapcs_elf_gas.S 0 → 100644
/*
Copyright Edward Nevill + Oliver Kowalke 2015
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | d8 | d9 | d10 | d11 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | d12 | d13 | d14 | d15 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c| *
* ------------------------------------------------- *
* | x19 | x20 | x21 | x22 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c| *
* ------------------------------------------------- *
* | x23 | x24 | x25 | x26 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 0x80| 0x84| 0x88| 0x8c| 0x90| 0x94| 0x98| 0x9c| *
* ------------------------------------------------- *
* | x27 | x28 | FP | LR | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | | | *
* ------------------------------------------------- *
* | 0xa0| 0xa4| 0xa8| 0xac| | | *
* ------------------------------------------------- *
* | PC | align | | | *
* ------------------------------------------------- *
* *
*******************************************************/
.file "jump_arm64_aapcs_elf_gas.S"
.text
.align 2
.global jump_fcontext
.type jump_fcontext, %function
jump_fcontext:
# prepare stack for GP + FPU
sub sp, sp, #0xb0
# save d8 - d15
stp d8, d9, [sp, #0x00]
stp d10, d11, [sp, #0x10]
stp d12, d13, [sp, #0x20]
stp d14, d15, [sp, #0x30]
# save x19-x30
stp x19, x20, [sp, #0x40]
stp x21, x22, [sp, #0x50]
stp x23, x24, [sp, #0x60]
stp x25, x26, [sp, #0x70]
stp x27, x28, [sp, #0x80]
stp x29, x30, [sp, #0x90]
# save LR as PC
str x30, [sp, #0xa0]
# store RSP (pointing to context-data) in X0
mov x4, sp
# restore RSP (pointing to context-data) from X1
mov sp, x0
# load d8 - d15
ldp d8, d9, [sp, #0x00]
ldp d10, d11, [sp, #0x10]
ldp d12, d13, [sp, #0x20]
ldp d14, d15, [sp, #0x30]
# load x19-x30
ldp x19, x20, [sp, #0x40]
ldp x21, x22, [sp, #0x50]
ldp x23, x24, [sp, #0x60]
ldp x25, x26, [sp, #0x70]
ldp x27, x28, [sp, #0x80]
ldp x29, x30, [sp, #0x90]
# return transfer_t from jump
# pass transfer_t as first arg in context function
# X0 == FCTX, X1 == DATA
mov x0, x4
# load pc
ldr x4, [sp, #0xa0]
# restore stack from GP + FPU
add sp, sp, #0xb0
ret x4
.size jump_fcontext,.-jump_fcontext
# Mark that we don't need executable stack.
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_arm64_aapcs_macho_gas.S 0 → 100644
/*
Copyright Edward Nevill + Oliver Kowalke 2015
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | d8 | d9 | d10 | d11 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | d12 | d13 | d14 | d15 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c| *
* ------------------------------------------------- *
* | x19 | x20 | x21 | x22 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c| *
* ------------------------------------------------- *
* | x23 | x24 | x25 | x26 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 0x80| 0x84| 0x88| 0x8c| 0x90| 0x94| 0x98| 0x9c| *
* ------------------------------------------------- *
* | x27 | x28 | FP | LR | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | | | *
* ------------------------------------------------- *
* | 0xa0| 0xa4| 0xa8| 0xac| | | *
* ------------------------------------------------- *
* | PC | align | | | *
* ------------------------------------------------- *
* *
*******************************************************/
.text
.globl _jump_fcontext
.balign 16
_jump_fcontext:
; prepare stack for GP + FPU
sub sp, sp, #0xb0
; save d8 - d15
stp d8, d9, [sp, #0x00]
stp d10, d11, [sp, #0x10]
stp d12, d13, [sp, #0x20]
stp d14, d15, [sp, #0x30]
; save x19-x30
stp x19, x20, [sp, #0x40]
stp x21, x22, [sp, #0x50]
stp x23, x24, [sp, #0x60]
stp x25, x26, [sp, #0x70]
stp x27, x28, [sp, #0x80]
stp fp, lr, [sp, #0x90]
; save LR as PC
str lr, [sp, #0xa0]
; store RSP (pointing to context-data) in X0
mov x4, sp
; restore RSP (pointing to context-data) from X1
mov sp, x0
; load d8 - d15
ldp d8, d9, [sp, #0x00]
ldp d10, d11, [sp, #0x10]
ldp d12, d13, [sp, #0x20]
ldp d14, d15, [sp, #0x30]
; load x19-x30
ldp x19, x20, [sp, #0x40]
ldp x21, x22, [sp, #0x50]
ldp x23, x24, [sp, #0x60]
ldp x25, x26, [sp, #0x70]
ldp x27, x28, [sp, #0x80]
ldp fp, lr, [sp, #0x90]
; return transfer_t from jump
; pass transfer_t as first arg in context function
; X0 == FCTX, X1 == DATA
mov x0, x4
; load pc
ldr x4, [sp, #0xa0]
; restore stack from GP + FPU
add sp, sp, #0xb0
ret x4
lib/context_switcher/asm/fcontext/jump_arm_aapcs_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | s16 | s17 | s18 | s19 | s20 | s21 | s22 | s23 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | s24 | s25 | s26 | s27 | s28 | s29 | s30 | s31 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c| *
* ------------------------------------------------- *
* |hiddn| v1 | v2 | v3 | v4 | v5 | v6 | v7 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c| *
* ------------------------------------------------- *
* | v8 | lr | pc | FCTX| DATA| | *
* ------------------------------------------------- *
* *
*******************************************************/
.file "jump_arm_aapcs_elf_gas.S"
.text
.globl jump_fcontext
.align 2
.type jump_fcontext,%function
.syntax unified
jump_fcontext:
@ save LR as PC
push {lr}
@ save hidden,V1-V8,LR
push {a1,v1-v8,lr}
@ prepare stack for FPU
sub sp, sp, #64
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
@ save S16-S31
vstmia sp, {d8-d15}
#endif
@ store RSP (pointing to context-data) in A1
mov a1, sp
@ restore RSP (pointing to context-data) from A2
mov sp, a2
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
@ restore S16-S31
vldmia sp, {d8-d15}
#endif
@ prepare stack for FPU
add sp, sp, #64
@ restore hidden,V1-V8,LR
pop {a4,v1-v8,lr}
@ return transfer_t from jump
str a1, [a4, #0]
str a3, [a4, #4]
@ pass transfer_t as first arg in context function
@ A1 == FCTX, A2 == DATA
mov a2, a3
@ restore PC
pop {pc}
.size jump_fcontext,.-jump_fcontext
@ Mark that we don't need executable stack.
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_arm_aapcs_macho_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | s16 | s17 | s18 | s19 | s20 | s21 | s22 | s23 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | s24 | s25 | s26 | s27 | s28 | s29 | s30 | s31 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | sjlj|hiddn| v1 | v2 | v3 | v4 | v5 | v6 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | v7 | v8 | lr | pc | FCTX| DATA| | *
* ------------------------------------------------- *
* *
*******************************************************/
.text
.globl _jump_fcontext
.align 2
_jump_fcontext:
@ save LR as PC
push {lr}
@ save hidden,V1-V8,LR
push {a1,v1-v8,lr}
@ locate TLS to save/restore SjLj handler
mrc p15, 0, v2, c13, c0, #3
bic v2, v2, #3
@ load TLS[__PTK_LIBC_DYLD_Unwind_SjLj_Key]
ldr v1, [v2, #8]
@ save SjLj handler
push {v1}
@ prepare stack for FPU
sub sp, sp, #64
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
@ save S16-S31
vstmia sp, {d8-d15}
#endif
@ store RSP (pointing to context-data) in A1
mov a1, sp
@ restore RSP (pointing to context-data) from A2
mov sp, a2
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
@ restore S16-S31
vldmia sp, {d8-d15}
#endif
@ prepare stack for FPU
add sp, sp, #64
@ r#estore SjLj handler
pop {v1}
@ store SjLj handler in TLS
str v1, [v2, #8]
@ restore hidden,V1-V8,LR
pop {a4,v1-v8,lr}
@ return transfer_t from jump
str a1, [a4, #0]
str a3, [a4, #4]
@ pass transfer_t as first arg in context function
@ A1 == FCTX, A2 == DATA
mov a2, a3
@ restore PC
pop {pc}
lib/context_switcher/asm/fcontext/jump_arm_aapcs_pe_armasm.asm 0 → 100644
;/*
; Copyright Oliver Kowalke 2009.
; Distributed under the Boost Software License, Version 1.0.
; (See accompanying file LICENSE_1_0.txt or copy at
; http://www.boost.org/LICENSE_1_0.txt)
;*/
; *******************************************************
; * *
; * ------------------------------------------------- *
; * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
; * ------------------------------------------------- *
; * | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
; * ------------------------------------------------- *
; * |deall|limit| base|hiddn| v1 | v2 | v3 | v4 | *
; * ------------------------------------------------- *
; * ------------------------------------------------- *
; * | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
; * ------------------------------------------------- *
; * | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
; * ------------------------------------------------- *
; * | v5 | v6 | v7 | v8 | lr | pc | FCTX| DATA| *
; * ------------------------------------------------- *
; * *
; *******************************************************
AREA |.text|, CODE
ALIGN 4
EXPORT jump_fcontext
jump_fcontext PROC
; save LR as PC
push {lr}
; save hidden,V1-V8,LR
push {a1,v1-v8,lr}
; load TIB to save/restore thread size and limit.
; we do not need preserve CPU flag and can use it's arg register
mrc p15, #0, v1, c13, c0, #2
; save current stack base
ldr a5, [v1, #0x04]
push {a5}
; save current stack limit
ldr a5, [v1, #0x08]
push {a5}
; save current deallocation stack
ldr a5, [v1, #0xe0c]
push {a5}
; store RSP (pointing to context-data) in A1
mov a1, sp
; restore RSP (pointing to context-data) from A2
mov sp, a2
; restore deallocation stack
pop {a5}
str a5, [v1, #0xe0c]
; restore stack limit
pop {a5}
str a5, [v1, #0x08]
; restore stack base
pop {a5}
str a5, [v1, #0x04]
; restore hidden,V1-V8,LR
pop {a4,v1-v8,lr}
; return transfer_t from jump
str a1, [a4, #0]
str a3, [a4, #4]
; pass transfer_t as first arg in context function
; A1 == FCTX, A2 == DATA
mov a2, a3
; restore PC
pop {pc}
ENDP
END
lib/context_switcher/asm/fcontext/jump_combined_sysv_macho_gas.S 0 → 100644
/*
Copyright Sergue E. Leontiev 2013.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
// Stub file for universal binary
#if defined(__i386__)
#include "jump_i386_sysv_macho_gas.S"
#elif defined(__x86_64__)
#include "jump_x86_64_sysv_macho_gas.S"
#elif defined(__ppc__)
#include "jump_ppc32_sysv_macho_gas.S"
#elif defined(__ppc64__)
#include "jump_ppc64_sysv_macho_gas.S"
#else
#error "No arch's"
#endif
lib/context_switcher/asm/fcontext/jump_i386_ms_pe_gas.asm 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Copyright Thomas Sailer 2013.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*************************************************************************************
* --------------------------------------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* --------------------------------------------------------------------------------- *
* | 0h | 04h | 08h | 0ch | 010h | 014h | 018h | 01ch | *
* --------------------------------------------------------------------------------- *
* | fc_mxcsr|fc_x87_cw| fc_strg |fc_deallo| limit | base | fc_seh | EDI | *
* --------------------------------------------------------------------------------- *
* --------------------------------------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* --------------------------------------------------------------------------------- *
* | 020h | 024h | 028h | 02ch | 030h | 034h | 038h | 03ch | *
* --------------------------------------------------------------------------------- *
* | ESI | EBX | EBP | EIP | to | data | EH NXT |SEH HNDLR| *
* --------------------------------------------------------------------------------- *
**************************************************************************************/
.file "jump_i386_ms_pe_gas.asm"
.text
.p2align 4,,15
/* mark as using no unregistered SEH handlers */
.globl @feat.00
.def @feat.00; .scl 3; .type 0; .endef
.set @feat.00, 1
.globl _jump_fcontext
.def _jump_fcontext; .scl 2; .type 32; .endef
_jump_fcontext:
/* prepare stack */
leal -0x2c(%esp), %esp
#if !defined(BOOST_USE_TSX)
/* save MMX control- and status-word */
stmxcsr (%esp)
/* save x87 control-word */
fnstcw 0x4(%esp)
#endif
/* load NT_TIB */
movl %fs:(0x18), %edx
/* load fiber local storage */
movl 0x10(%edx), %eax
movl %eax, 0x8(%esp)
/* load current dealloction stack */
movl 0xe0c(%edx), %eax
movl %eax, 0xc(%esp)
/* load current stack limit */
movl 0x8(%edx), %eax
movl %eax, 0x10(%esp)
/* load current stack base */
movl 0x4(%edx), %eax
movl %eax, 0x14(%esp)
/* load current SEH exception list */
movl (%edx), %eax
movl %eax, 0x18(%esp)
movl %edi, 0x1c(%esp) /* save EDI */
movl %esi, 0x20(%esp) /* save ESI */
movl %ebx, 0x24(%esp) /* save EBX */
movl %ebp, 0x28(%esp) /* save EBP */
/* store ESP (pointing to context-data) in EAX */
movl %esp, %eax
/* firstarg of jump_fcontext() == fcontext to jump to */
movl 0x30(%esp), %ecx
/* restore ESP (pointing to context-data) from ECX */
movl %ecx, %esp
#if !defined(BOOST_USE_TSX)
/* restore MMX control- and status-word */
ldmxcsr (%esp)
/* restore x87 control-word */
fldcw 0x4(%esp)
#endif
/* restore NT_TIB into EDX */
movl %fs:(0x18), %edx
/* restore fiber local storage */
movl 0x8(%esp), %ecx
movl %ecx, 0x10(%edx)
/* restore current deallocation stack */
movl 0xc(%esp), %ecx
movl %ecx, 0xe0c(%edx)
/* restore current stack limit */
movl 0x10(%esp), %ecx
movl %ecx, 0x8(%edx)
/* restore current stack base */
movl 0x14(%esp), %ecx
movl %ecx, 0x4(%edx)
/* restore current SEH exception list */
movl 0x18(%esp), %ecx
movl %ecx, (%edx)
movl 0x2c(%esp), %ecx /* restore EIP */
movl 0x1c(%esp), %edi /* restore EDI */
movl 0x20(%esp), %esi /* restore ESI */
movl 0x24(%esp), %ebx /* restore EBX */
movl 0x28(%esp), %ebp /* restore EBP */
/* prepare stack */
leal 0x30(%esp), %esp
/* return transfer_t */
/* FCTX == EAX, DATA == EDX */
movl 0x34(%eax), %edx
/* jump to context */
jmp *%ecx
.section .drectve
.ascii " -export:\"_jump_fcontext\""
lib/context_switcher/asm/fcontext/jump_i386_ms_pe_masm.asm 0 → 100644
; Copyright Oliver Kowalke 2009.
; Distributed under the Boost Software License, Version 1.0.
; (See accompanying file LICENSE_1_0.txt or copy at
; http://www.boost.org/LICENSE_1_0.txt)
; ---------------------------------------------------------------------------------
; | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
; ---------------------------------------------------------------------------------
; | 0h | 04h | 08h | 0ch | 010h | 014h | 018h | 01ch |
; ---------------------------------------------------------------------------------
; | fc_mxcsr|fc_x87_cw| fc_strg |fc_deallo| limit | base | fc_seh | EDI |
; ---------------------------------------------------------------------------------
; ---------------------------------------------------------------------------------
; | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
; ---------------------------------------------------------------------------------
; | 020h | 024h | 028h | 02ch | 030h | 034h | 038h | 03ch |
; ---------------------------------------------------------------------------------
; | ESI | EBX | EBP | EIP | to | data | EH NXT |SEH HNDLR|
; ---------------------------------------------------------------------------------
.386
.XMM
.model flat, c
.code
jump_fcontext PROC BOOST_CONTEXT_EXPORT
; prepare stack
lea esp, [esp-02ch]
IFNDEF BOOST_USE_TSX
; save MMX control- and status-word
stmxcsr [esp]
; save x87 control-word
fnstcw [esp+04h]
ENDIF
assume fs:nothing
; load NT_TIB into ECX
mov edx, fs:[018h]
assume fs:error
; load fiber local storage
mov eax, [edx+010h]
mov [esp+08h], eax
; load current deallocation stack
mov eax, [edx+0e0ch]
mov [esp+0ch], eax
; load current stack limit
mov eax, [edx+08h]
mov [esp+010h], eax
; load current stack base
mov eax, [edx+04h]
mov [esp+014h], eax
; load current SEH exception list
mov eax, [edx]
mov [esp+018h], eax
mov [esp+01ch], edi ; save EDI
mov [esp+020h], esi ; save ESI
mov [esp+024h], ebx ; save EBX
mov [esp+028h], ebp ; save EBP
; store ESP (pointing to context-data) in EAX
mov eax, esp
; firstarg of jump_fcontext() == fcontext to jump to
mov ecx, [esp+030h]
; restore ESP (pointing to context-data) from ECX
mov esp, ecx
IFNDEF BOOST_USE_TSX
; restore MMX control- and status-word
ldmxcsr [esp]
; restore x87 control-word
fldcw [esp+04h]
ENDIF
assume fs:nothing
; load NT_TIB into EDX
mov edx, fs:[018h]
assume fs:error
; restore fiber local storage
mov ecx, [esp+08h]
mov [edx+010h], ecx
; restore current deallocation stack
mov ecx, [esp+0ch]
mov [edx+0e0ch], ecx
; restore current stack limit
mov ecx, [esp+010h]
mov [edx+08h], ecx
; restore current stack base
mov ecx, [esp+014h]
mov [edx+04h], ecx
; restore current SEH exception list
mov ecx, [esp+018h]
mov [edx], ecx
mov ecx, [esp+02ch] ; restore EIP
mov edi, [esp+01ch] ; restore EDI
mov esi, [esp+020h] ; restore ESI
mov ebx, [esp+024h] ; restore EBX
mov ebp, [esp+028h] ; restore EBP
; prepare stack
lea esp, [esp+030h]
; return transfer_t
; FCTX == EAX, DATA == EDX
mov edx, [eax+034h]
; jump to context
jmp ecx
jump_fcontext ENDP
END
lib/context_switcher/asm/fcontext/jump_i386_sysv_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/****************************************************************************************
* *
* ---------------------------------------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ---------------------------------------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
* ---------------------------------------------------------------------------------- *
* | fc_mxcsr|fc_x87_cw| EDI | ESI | EBX | EBP | EIP | hidden | *
* ---------------------------------------------------------------------------------- *
* ---------------------------------------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ---------------------------------------------------------------------------------- *
* | 0x20 | 0x24 | | *
* ---------------------------------------------------------------------------------- *
* | to | data | | *
* ---------------------------------------------------------------------------------- *
* *
****************************************************************************************/
.file "jump_i386_sysv_elf_gas.S"
.text
.globl jump_fcontext
.align 2
.type jump_fcontext,@function
jump_fcontext:
leal -0x18(%esp), %esp /* prepare stack */
#if !defined(BOOST_USE_TSX)
stmxcsr (%esp) /* save MMX control- and status-word */
fnstcw 0x4(%esp) /* save x87 control-word */
#endif
movl %edi, 0x8(%esp) /* save EDI */
movl %esi, 0xc(%esp) /* save ESI */
movl %ebx, 0x10(%esp) /* save EBX */
movl %ebp, 0x14(%esp) /* save EBP */
/* store ESP (pointing to context-data) in ECX */
movl %esp, %ecx
/* first arg of jump_fcontext() == fcontext to jump to */
movl 0x20(%esp), %eax
/* second arg of jump_fcontext() == data to be transferred */
movl 0x24(%esp), %edx
/* restore ESP (pointing to context-data) from EAX */
movl %eax, %esp
/* address of returned transport_t */
movl 0x1c(%esp), %eax
/* return parent fcontext_t */
movl %ecx, (%eax)
/* return data */
movl %edx, 0x4(%eax)
movl 0x18(%esp), %ecx /* restore EIP */
#if !defined(BOOST_USE_TSX)
ldmxcsr (%esp) /* restore MMX control- and status-word */
fldcw 0x4(%esp) /* restore x87 control-word */
#endif
movl 0x8(%esp), %edi /* restore EDI */
movl 0xc(%esp), %esi /* restore ESI */
movl 0x10(%esp), %ebx /* restore EBX */
movl 0x14(%esp), %ebp /* restore EBP */
leal 0x20(%esp), %esp /* prepare stack */
/* jump to context */
jmp *%ecx
.size jump_fcontext,.-jump_fcontext
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_i386_sysv_macho_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/****************************************************************************************
* *
* ---------------------------------------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ---------------------------------------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
* ---------------------------------------------------------------------------------- *
* | fc_mxcsr|fc_x87_cw| EDI | ESI | EBX | EBP | EIP | to | *
* ---------------------------------------------------------------------------------- *
* ---------------------------------------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ---------------------------------------------------------------------------------- *
* | 0x20 | | *
* ---------------------------------------------------------------------------------- *
* | data | | *
* ---------------------------------------------------------------------------------- *
* *
****************************************************************************************/
.text
.globl _jump_fcontext
.align 2
_jump_fcontext:
leal -0x18(%esp), %esp /* prepare stack */
#if !defined(BOOST_USE_TSX)
stmxcsr (%esp) /* save MMX control- and status-word */
fnstcw 0x4(%esp) /* save x87 control-word */
#endif
movl %edi, 0x8(%esp) /* save EDI */
movl %esi, 0xc(%esp) /* save ESI */
movl %ebx, 0x10(%esp) /* save EBX */
movl %ebp, 0x14(%esp) /* save EBP */
/* store ESP (pointing to context-data) in ECX */
movl %esp, %ecx
/* first arg of jump_fcontext() == fcontext to jump to */
movl 0x1c(%esp), %eax
/* second arg of jump_fcontext() == data to be transferred */
movl 0x20(%esp), %edx
/* restore ESP (pointing to context-data) from EAX */
movl %eax, %esp
/* return parent fcontext_t */
movl %ecx, %eax
/* returned data is stored in EDX */
movl 0x18(%esp), %ecx /* restore EIP */
#if !defined(BOOST_USE_TSX)
ldmxcsr (%esp) /* restore MMX control- and status-word */
fldcw 0x4(%esp) /* restore x87 control-word */
#endif
movl 0x8(%esp), %edi /* restore EDI */
movl 0xc(%esp), %esi /* restore ESI */
movl 0x10(%esp), %ebx /* restore EBX */
movl 0x14(%esp), %ebp /* restore EBP */
leal 0x1c(%esp), %esp /* prepare stack */
/* jump to context */
jmp *%ecx
lib/context_switcher/asm/fcontext/jump_i386_x86_64_sysv_macho_gas.S 0 → 100644
/*
Copyright Sergue E. Leontiev 2013.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
// Stub file for universal binary
#if defined(__i386__)
#include "jump_i386_sysv_macho_gas.S"
#elif defined(__x86_64__)
#include "jump_x86_64_sysv_macho_gas.S"
#else
#error "No arch's"
#endif
lib/context_switcher/asm/fcontext/jump_mips32_o32_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* | F20 | F22 | F24 | F26 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | F28 | F30 | S0 | S1 | S2 | S3 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | S4 | S5 | S6 | S7 | FP |hiddn| RA | PC | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | ABI ARGS | GP | FCTX| DATA| | *
* ------------------------------------------------- *
* *
* *****************************************************/
.file "jump_mips32_o32_elf_gas.S"
.text
.globl jump_fcontext
.align 2
.type jump_fcontext,@function
.ent jump_fcontext
jump_fcontext:
# reserve space on stack
addiu $sp, $sp, -96
sw $s0, 48($sp) # save S0
sw $s1, 52($sp) # save S1
sw $s2, 56($sp) # save S2
sw $s3, 60($sp) # save S3
sw $s4, 64($sp) # save S4
sw $s5, 68($sp) # save S5
sw $s6, 72($sp) # save S6
sw $s7, 76($sp) # save S7
sw $fp, 80($sp) # save FP
sw $a0, 84($sp) # save hidden, address of returned transfer_t
sw $ra, 88($sp) # save RA
sw $ra, 92($sp) # save RA as PC
#if defined(__mips_hard_float)
s.d $f20, ($sp) # save F20
s.d $f22, 8($sp) # save F22
s.d $f24, 16($sp) # save F24
s.d $f26, 24($sp) # save F26
s.d $f28, 32($sp) # save F28
s.d $f30, 40($sp) # save F30
#endif
# store SP (pointing to context-data) in A0
move $a0, $sp
# restore SP (pointing to context-data) from A1
move $sp, $a1
#if defined(__mips_hard_float)
l.d $f20, ($sp) # restore F20
l.d $f22, 8($sp) # restore F22
l.d $f24, 16($sp) # restore F24
l.d $f26, 24($sp) # restore F26
l.d $f28, 32($sp) # restore F28
l.d $f30, 40($sp) # restore F30
#endif
lw $s0, 48($sp) # restore S0
lw $s1, 52($sp) # restore S1
lw $s2, 56($sp) # restore S2
lw $s3, 60($sp) # restore S3
lw $s4, 64($sp) # restore S4
lw $s5, 68($sp) # restore S5
lw $s6, 72($sp) # restore S6
lw $s7, 76($sp) # restore S7
lw $fp, 80($sp) # restore FP
lw $v0, 84($sp) # restore hidden, address of returned transfer_t
lw $ra, 88($sp) # restore RA
# load PC
lw $t9, 92($sp)
# adjust stack
addiu $sp, $sp, 96
# return transfer_t from jump
sw $a0, ($v0) # fctx of transfer_t
sw $a2, 4($v0) # data of transfer_t
# pass transfer_t as first arg in context function
# A0 == fctx, A1 == data
move $a1, $a2
# jump to context
jr $t9
.end jump_fcontext
.size jump_fcontext, .-jump_fcontext
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_mips64_n64_elf_gas.S 0 → 100644
/*
Copyright Jiaxun Yang 2018.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 8 | 16 | 24 | *
* ------------------------------------------------- *
* | F24 | F25 | F26 | F27 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 40 | 48 | 56 | *
* ------------------------------------------------- *
* | F28 | F29 | F30 | F31 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 72 | 80 | 88 | *
* ------------------------------------------------- *
* | S0 | S1 | S2 | S3 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | S4 | S5 | S6 | S7 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | FP | GP | RA | PC | *
* ------------------------------------------------- *
* *
* *****************************************************/
.file "jump_mips64_n64_elf_gas.S"
.text
.globl jump_fcontext
.align 3
.type jump_fcontext,@function
.ent jump_fcontext
jump_fcontext:
# reserve space on stack
daddiu $sp, $sp, -160
sd $s0, 64($sp) # save S0
sd $s1, 72($sp) # save S1
sd $s2, 80($sp) # save S2
sd $s3, 88($sp) # save S3
sd $s4, 96($sp) # save S4
sd $s5, 104($sp) # save S5
sd $s6, 112($sp) # save S6
sd $s7, 120($sp) # save S7
sd $fp, 128($sp) # save FP
sd $ra, 144($sp) # save RA
sd $ra, 152($sp) # save RA as PC
s.d $f24, 0($sp) # save F24
s.d $f25, 8($sp) # save F25
s.d $f26, 16($sp) # save F26
s.d $f27, 24($sp) # save F27
s.d $f28, 32($sp) # save F28
s.d $f29, 40($sp) # save F29
s.d $f30, 48($sp) # save F30
s.d $f31, 56($sp) # save F31
# store SP (pointing to old context-data) in v0 as return
move $v0, $sp
# get SP (pointing to new context-data) from a0 param
move $sp, $a0
l.d $f24, 0($sp) # restore F24
l.d $f25, 8($sp) # restore F25
l.d $f26, 16($sp) # restore F26
l.d $f27, 24($sp) # restore F27
l.d $f28, 32($sp) # restore F28
l.d $f29, 40($sp) # restore F29
l.d $f30, 48($sp) # restore F30
l.d $f31, 56($sp) # restore F31
ld $s0, 64($sp) # restore S0
ld $s1, 72($sp) # restore S1
ld $s2, 80($sp) # restore S2
ld $s3, 88($sp) # restore S3
ld $s4, 96($sp) # restore S4
ld $s5, 104($sp) # restore S5
ld $s6, 112($sp) # restore S6
ld $s7, 120($sp) # restore S7
ld $fp, 128($sp) # restore FP
ld $ra, 144($sp) # restore RAa
# load PC
ld $t9, 152($sp)
# adjust stack
daddiu $sp, $sp, 160
move $a0, $v0 # move old sp from v0 to a0 as param
move $v1, $a1 # move *data from a1 to v1 as return
# jump to context
jr $t9
.end jump_fcontext
.size jump_fcontext, .-jump_fcontext
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_ppc32_ppc64_sysv_macho_gas.S 0 → 100644
/*
Copyright Sergue E. Leontiev 2013.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
// Stub file for universal binary
#if defined(__ppc__)
#include "jump_ppc32_sysv_macho_gas.S"
#elif defined(__ppc64__)
#include "jump_ppc64_sysv_macho_gas.S"
#else
#error "No arch's"
#endif
lib/context_switcher/asm/fcontext/jump_ppc32_sysv_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* |bchai|hiddn| fpscr | PC | CR | R14 | R15 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | R24 | R25 | R26 | R27 | R28 | R29 | R30 | R31 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | F14 | F15 | F16 | F17 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | F18 | F19 | F20 | F21 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | *
* ------------------------------------------------- *
* | F22 | F23 | F24 | F25 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | *
* ------------------------------------------------- *
* | F26 | F27 | F28 | F29 | *
* ------------------------------------------------- *
* ------------------------|------------ *
* | 224 | 228 | 232 | 236 | 240 | 244 | *
* ------------------------|------------ *
* | F30 | F31 |bchai| LR | *
* ------------------------|------------ *
* *
*******************************************************/
.file "jump_ppc32_sysv_elf_gas.S"
.text
.globl jump_fcontext
.align 2
.type jump_fcontext,@function
jump_fcontext:
# Linux: jump_fcontext( hidden transfer_t * R3, R4, R5)
# Other: transfer_t R3:R4 = jump_fcontext( R3, R4)
mflr %r0 # return address from LR
mffs %f0 # FPSCR
mfcr %r8 # condition register
stwu %r1, -240(%r1) # allocate stack space, R1 % 16 == 0
stw %r0, 244(%r1) # save LR in caller's frame
#ifdef __linux__
stw %r3, 4(%r1) # hidden pointer
#endif
stfd %f0, 8(%r1) # FPSCR
stw %r0, 16(%r1) # LR as PC
stw %r8, 20(%r1) # CR
# Save registers R14 to R31.
# Don't change R2, the thread-local storage pointer.
# Don't change R13, the small data pointer.
stw %r14, 24(%r1)
stw %r15, 28(%r1)
stw %r16, 32(%r1)
stw %r17, 36(%r1)
stw %r18, 40(%r1)
stw %r19, 44(%r1)
stw %r20, 48(%r1)
stw %r21, 52(%r1)
stw %r22, 56(%r1)
stw %r23, 60(%r1)
stw %r24, 64(%r1)
stw %r25, 68(%r1)
stw %r26, 72(%r1)
stw %r27, 76(%r1)
stw %r28, 80(%r1)
stw %r29, 84(%r1)
stw %r30, 88(%r1)
stw %r31, 92(%r1)
# Save registers F14 to F31 in slots with 8-byte alignment.
# 4-byte alignment may stall the pipeline of some processors.
# Less than 4 may cause alignment traps.
stfd %f14, 96(%r1)
stfd %f15, 104(%r1)
stfd %f16, 112(%r1)
stfd %f17, 120(%r1)
stfd %f18, 128(%r1)
stfd %f19, 136(%r1)
stfd %f20, 144(%r1)
stfd %f21, 152(%r1)
stfd %f22, 160(%r1)
stfd %f23, 168(%r1)
stfd %f24, 176(%r1)
stfd %f25, 184(%r1)
stfd %f26, 192(%r1)
stfd %f27, 200(%r1)
stfd %f28, 208(%r1)
stfd %f29, 216(%r1)
stfd %f30, 224(%r1)
stfd %f31, 232(%r1)
# store RSP (pointing to context-data) in R7/R6
# restore RSP (pointing to context-data) from R4/R3
#ifdef __linux__
mr %r7, %r1
mr %r1, %r4
lwz %r3, 4(%r1) # hidden pointer
#else
mr %r6, %r1
mr %r1, %r3
#endif
lfd %f0, 8(%r1) # FPSCR
lwz %r0, 16(%r1) # PC
lwz %r8, 20(%r1) # CR
mtfsf 0xff, %f0 # restore FPSCR
mtctr %r0 # load CTR with PC
mtcr %r8 # restore CR
# restore R14 to R31
lwz %r14, 24(%r1)
lwz %r15, 28(%r1)
lwz %r16, 32(%r1)
lwz %r17, 36(%r1)
lwz %r18, 40(%r1)
lwz %r19, 44(%r1)
lwz %r20, 48(%r1)
lwz %r21, 52(%r1)
lwz %r22, 56(%r1)
lwz %r23, 60(%r1)
lwz %r24, 64(%r1)
lwz %r25, 68(%r1)
lwz %r26, 72(%r1)
lwz %r27, 76(%r1)
lwz %r28, 80(%r1)
lwz %r29, 84(%r1)
lwz %r30, 88(%r1)
lwz %r31, 92(%r1)
# restore F14 to F31
lfd %f14, 96(%r1)
lfd %f15, 104(%r1)
lfd %f16, 112(%r1)
lfd %f17, 120(%r1)
lfd %f18, 128(%r1)
lfd %f19, 136(%r1)
lfd %f20, 144(%r1)
lfd %f21, 152(%r1)
lfd %f22, 160(%r1)
lfd %f23, 168(%r1)
lfd %f24, 176(%r1)
lfd %f25, 184(%r1)
lfd %f26, 192(%r1)
lfd %f27, 200(%r1)
lfd %f28, 208(%r1)
lfd %f29, 216(%r1)
lfd %f30, 224(%r1)
lfd %f31, 232(%r1)
# restore LR from caller's frame
lwz %r0, 244(%r1)
mtlr %r0
# adjust stack
addi %r1, %r1, 240
# return transfer_t
#ifdef __linux__
stw %r7, 0(%r3)
stw %r5, 4(%r3)
#else
mr %r3, %r6
# %r4, %r4
#endif
# jump to context
bctr
.size jump_fcontext, .-jump_fcontext
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_ppc32_sysv_macho_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* | F14 | F15 | F16 | F17 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | F18 | F19 | F20 | F21 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | F22 | F23 | F24 | F25 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | F26 | F27 | F28 | F29 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | F30 | F31 | fpscr | R13 | R14 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | *
* ------------------------------------------------- *
* | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | *
* ------------------------------------------------- *
* | R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | *
* ------------------------------------------------- *
* | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | *
* ------------------------------------------------- *
* | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | *
* ------------------------------------------------- *
* | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 | *
* ------------------------------------------------- *
* | R31 |hiddn| CR | LR | PC |bchai|linkr| FCTX| *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 64 | | *
* ------------------------------------------------- *
* | 256 | | *
* ------------------------------------------------- *
* | DATA| | *
* ------------------------------------------------- *
* *
*******************************************************/
.text
.globl _jump_fcontext
.align 2
_jump_fcontext:
; reserve space on stack
subi r1, r1, 244
stfd f14, 0(r1) # save F14
stfd f15, 8(r1) # save F15
stfd f16, 16(r1) # save F16
stfd f17, 24(r1) # save F17
stfd f18, 32(r1) # save F18
stfd f19, 40(r1) # save F19
stfd f20, 48(r1) # save F20
stfd f21, 56(r1) # save F21
stfd f22, 64(r1) # save F22
stfd f23, 72(r1) # save F23
stfd f24, 80(r1) # save F24
stfd f25, 88(r1) # save F25
stfd f26, 96(r1) # save F26
stfd f27, 104(r1) # save F27
stfd f28, 112(r1) # save F28
stfd f29, 120(r1) # save F29
stfd f30, 128(r1) # save F30
stfd f31, 136(r1) # save F31
mffs f0 # load FPSCR
stfd f0, 144(r1) # save FPSCR
stw r13, 152(r1) # save R13
stw r14, 156(r1) # save R14
stw r15, 160(r1) # save R15
stw r16, 164(r1) # save R16
stw r17, 168(r1) # save R17
stw r18, 172(r1) # save R18
stw r19, 176(r1) # save R19
stw r20, 180(r1) # save R20
stw r21, 184(r1) # save R21
stw r22, 188(r1) # save R22
stw r23, 192(r1) # save R23
stw r24, 196(r1) # save R24
stw r25, 200(r1) # save R25
stw r26, 204(r1) # save R26
stw r27, 208(r1) # save R27
stw r28, 212(r1) # save R28
stw r29, 216(r1) # save R29
stw r30, 220(r1) # save R30
stw r31, 224(r1) # save R31
stw r3, 228(r1) # save hidden
# save CR
mfcr r0
stw r0, 232(r1)
# save LR
mflr r0
stw r0, 236(r1)
# save LR as PC
stw r0, 240(r1)
# store RSP (pointing to context-data) in R6
mr r6, r1
# restore RSP (pointing to context-data) from R4
mr r1, r4
lfd f14, 0(r1) # restore F14
lfd f15, 8(r1) # restore F15
lfd f16, 16(r1) # restore F16
lfd f17, 24(r1) # restore F17
lfd f18, 32(r1) # restore F18
lfd f19, 40(r1) # restore F19
lfd f20, 48(r1) # restore F20
lfd f21, 56(r1) # restore F21
lfd f22, 64(r1) # restore F22
lfd f23, 72(r1) # restore F23
lfd f24, 80(r1) # restore F24
lfd f25, 88(r1) # restore F25
lfd f26, 96(r1) # restore F26
lfd f27, 104(r1) # restore F27
lfd f28, 112(r1) # restore F28
lfd f29, 120(r1) # restore F29
lfd f30, 128(r1) # restore F30
lfd f31, 136(r1) # restore F31
lfd f0, 144(r1) # load FPSCR
mtfsf 0xff, f0 # restore FPSCR
lwz r13, 152(r1) # restore R13
lwz r14, 156(r1) # restore R14
lwz r15, 160(r1) # restore R15
lwz r16, 164(r1) # restore R16
lwz r17, 168(r1) # restore R17
lwz r18, 172(r1) # restore R18
lwz r19, 176(r1) # restore R19
lwz r20, 180(r1) # restore R20
lwz r21, 184(r1) # restore R21
lwz r22, 188(r1) # restore R22
lwz r23, 192(r1) # restore R23
lwz r24, 196(r1) # restore R24
lwz r25, 200(r1) # restore R25
lwz r26, 204(r1) # restore R26
lwz r27, 208(r1) # restore R27
lwz r28, 212(r1) # restore R28
lwz r29, 216(r1) # restore R29
lwz r30, 220(r1) # restore R30
lwz r31, 224(r1) # restore R31
lwz r3, 228(r1) # restore hidden
# restore CR
lwz r0, 232(r1)
mtcr r0
# restore LR
lwz r0, 236(r1)
mtlr r0
# load PC
lwz r0, 240(r1)
# restore CTR
mtctr r0
# adjust stack
addi r1, r1, 244
# return transfer_t
stw r6, 0(r3)
stw r5, 4(r3)
# jump to context
bctr
lib/context_switcher/asm/fcontext/jump_ppc32_sysv_xcoff_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* | F14 | F15 | F16 | F17 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | F18 | F19 | F20 | F21 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | F22 | F23 | F24 | F25 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | F26 | F27 | F28 | F29 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | F30 | F31 | fpscr | R13 | R14 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | *
* ------------------------------------------------- *
* | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | *
* ------------------------------------------------- *
* | R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | *
* ------------------------------------------------- *
* | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | *
* ------------------------------------------------- *
* | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | *
* ------------------------------------------------- *
* | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 | *
* ------------------------------------------------- *
* | R31 |hiddn| CR | LR | PC |bchai|linkr| FCTX| *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 64 | | *
* ------------------------------------------------- *
* | 256 | | *
* ------------------------------------------------- *
* | DATA| | *
* ------------------------------------------------- *
* *
*******************************************************/
.globl .jump_fcontext
.globl jump_fcontext[DS]
.align 2
.csect jump_fcontext[DS]
jump_fcontext:
.long .jump_fcontext
.jump_fcontext:
# reserve space on stack
subi r1, r1, 244
stfd f14, 0(r1) # save F14
stfd f15, 8(r1) # save F15
stfd f16, 16(r1) # save F16
stfd f17, 24(r1) # save F17
stfd f18, 32(r1) # save F18
stfd f19, 40(r1) # save F19
stfd f20, 48(r1) # save F20
stfd f21, 56(r1) # save F21
stfd f22, 64(r1) # save F22
stfd f23, 72(r1) # save F23
stfd f24, 80(r1) # save F24
stfd f25, 88(r1) # save F25
stfd f26, 96(r1) # save F26
stfd f27, 104(r1) # save F27
stfd f28, 112(r1) # save F28
stfd f29, 120(r1) # save F29
stfd f30, 128(r1) # save F30
stfd f31, 136(r1) # save F31
mffs f0 # load FPSCR
stfd f0, 144(r1) # save FPSCR
stw r13, 152(r1) # save R13
stw r14, 156(r1) # save R14
stw r15, 160(r1) # save R15
stw r16, 164(r1) # save R16
stw r17, 168(r1) # save R17
stw r18, 172(r1) # save R18
stw r19, 176(r1) # save R19
stw r20, 180(r1) # save R20
stw r21, 184(r1) # save R21
stw r22, 188(r1) # save R22
stw r23, 192(r1) # save R23
stw r24, 196(r1) # save R24
stw r25, 200(r1) # save R25
stw r26, 204(r1) # save R26
stw r27, 208(r1) # save R27
stw r28, 212(r1) # save R28
stw r29, 216(r1) # save R29
stw r30, 220(r1) # save R30
stw r31, 224(r1) # save R31
stw r3, 228(r1) # save hidden
# save CR
mfcr r0
stw r0, 232(r1)
# save LR
mflr r0
stw r0, 236(r1)
# save LR as PC
stw r0, 240(r1)
# store RSP (pointing to context-data) in R6
mr r6, r1
# restore RSP (pointing to context-data) from R4
mr r1, r4
lfd f14, 0(r1) # restore F14
lfd f15, 8(r1) # restore F15
lfd f16, 16(r1) # restore F16
lfd f17, 24(r1) # restore F17
lfd f18, 32(r1) # restore F18
lfd f19, 40(r1) # restore F19
lfd f20, 48(r1) # restore F20
lfd f21, 56(r1) # restore F21
lfd f22, 64(r1) # restore F22
lfd f23, 72(r1) # restore F23
lfd f24, 80(r1) # restore F24
lfd f25, 88(r1) # restore F25
lfd f26, 96(r1) # restore F26
lfd f27, 104(r1) # restore F27
lfd f28, 112(r1) # restore F28
lfd f29, 120(r1) # restore F29
lfd f30, 128(r1) # restore F30
lfd f31, 136(r1) # restore F31
lfd f0, 144(r1) # load FPSCR
mtfsf 0xff, f0 # restore FPSCR
lwz r13, 152(r1) # restore R13
lwz r14, 156(r1) # restore R14
lwz r15, 160(r1) # restore R15
lwz r16, 164(r1) # restore R16
lwz r17, 168(r1) # restore R17
lwz r18, 172(r1) # restore R18
lwz r19, 176(r1) # restore R19
lwz r20, 180(r1) # restore R20
lwz r21, 184(r1) # restore R21
lwz r22, 188(r1) # restore R22
lwz r23, 192(r1) # restore R23
lwz r24, 196(r1) # restore R24
lwz r25, 200(r1) # restore R25
lwz r26, 204(r1) # restore R26
lwz r27, 208(r1) # restore R27
lwz r28, 212(r1) # restore R28
lwz r29, 216(r1) # restore R29
lwz r30, 220(r1) # restore R30
lwz r31, 224(r1) # restore R31
lwz r3, 228(r1) # restore hidden
# restore CR
lwz r0, 232(r1)
mtcr r0
# restore LR
lwz r0, 236(r1)
mtlr r0
# load PC
lwz r0, 240(r1)
# restore CTR
mtctr r0
# adjust stack
addi r1, r1, 244
# return transfer_t
stw r6, 0(r3)
stw r5, 4(r3)
# jump to context
bctr
lib/context_switcher/asm/fcontext/jump_ppc64_sysv_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* | TOC | R14 | R15 | R16 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | R17 | R18 | R19 | R20 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | R21 | R22 | R23 | R24 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | R25 | R26 | R27 | R28 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | R29 | R30 | R31 | hidden | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | *
* ------------------------------------------------- *
* | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | *
* ------------------------------------------------- *
* | CR | LR | PC | back-chain| *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | *
* ------------------------------------------------- *
* | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | *
* ------------------------------------------------- *
* | cr saved | lr saved | compiler | linker | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | *
* ------------------------------------------------- *
* | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 | *
* ------------------------------------------------- *
* | TOC saved | FCTX | DATA | | *
* ------------------------------------------------- *
* *
*******************************************************/
.file "jump_ppc64_sysv_elf_gas.S"
.globl jump_fcontext
#if _CALL_ELF == 2
.text
.align 2
jump_fcontext:
addis %r2, %r12, .TOC.-jump_fcontext@ha
addi %r2, %r2, .TOC.-jump_fcontext@l
.localentry jump_fcontext, . - jump_fcontext
#else
.section ".opd","aw"
.align 3
jump_fcontext:
# ifdef _CALL_LINUX
.quad .L.jump_fcontext,.TOC.@tocbase,0
.type jump_fcontext,@function
.text
.align 2
.L.jump_fcontext:
# else
.hidden .jump_fcontext
.globl .jump_fcontext
.quad .jump_fcontext,.TOC.@tocbase,0
.size jump_fcontext,24
.type .jump_fcontext,@function
.text
.align 2
.jump_fcontext:
# endif
#endif
# reserve space on stack
subi %r1, %r1, 184
#if _CALL_ELF != 2
std %r2, 0(%r1) # save TOC
#endif
std %r14, 8(%r1) # save R14
std %r15, 16(%r1) # save R15
std %r16, 24(%r1) # save R16
std %r17, 32(%r1) # save R17
std %r18, 40(%r1) # save R18
std %r19, 48(%r1) # save R19
std %r20, 56(%r1) # save R20
std %r21, 64(%r1) # save R21
std %r22, 72(%r1) # save R22
std %r23, 80(%r1) # save R23
std %r24, 88(%r1) # save R24
std %r25, 96(%r1) # save R25
std %r26, 104(%r1) # save R26
std %r27, 112(%r1) # save R27
std %r28, 120(%r1) # save R28
std %r29, 128(%r1) # save R29
std %r30, 136(%r1) # save R30
std %r31, 144(%r1) # save R31
#if _CALL_ELF != 2
std %r3, 152(%r1) # save hidden
#endif
# save CR
mfcr %r0
std %r0, 160(%r1)
# save LR
mflr %r0
std %r0, 168(%r1)
# save LR as PC
std %r0, 176(%r1)
# store RSP (pointing to context-data) in R6
mr %r6, %r1
#if _CALL_ELF == 2
# restore RSP (pointing to context-data) from R3
mr %r1, %r3
#else
# restore RSP (pointing to context-data) from R4
mr %r1, %r4
ld %r2, 0(%r1) # restore TOC
#endif
ld %r14, 8(%r1) # restore R14
ld %r15, 16(%r1) # restore R15
ld %r16, 24(%r1) # restore R16
ld %r17, 32(%r1) # restore R17
ld %r18, 40(%r1) # restore R18
ld %r19, 48(%r1) # restore R19
ld %r20, 56(%r1) # restore R20
ld %r21, 64(%r1) # restore R21
ld %r22, 72(%r1) # restore R22
ld %r23, 80(%r1) # restore R23
ld %r24, 88(%r1) # restore R24
ld %r25, 96(%r1) # restore R25
ld %r26, 104(%r1) # restore R26
ld %r27, 112(%r1) # restore R27
ld %r28, 120(%r1) # restore R28
ld %r29, 128(%r1) # restore R29
ld %r30, 136(%r1) # restore R30
ld %r31, 144(%r1) # restore R31
#if _CALL_ELF != 2
ld %r3, 152(%r1) # restore hidden
#endif
# restore CR
ld %r0, 160(%r1)
mtcr %r0
# restore LR
ld %r0, 168(%r1)
mtlr %r0
# load PC
ld %r12, 176(%r1)
# restore CTR
mtctr %r12
# adjust stack
addi %r1, %r1, 184
#if _CALL_ELF == 2
# copy transfer_t into transfer_fn arg registers
mr %r3, %r6
# arg pointer already in %r4
# jump to context
bctr
.size jump_fcontext, .-jump_fcontext
#else
# zero in r3 indicates first jump to context-function
cmpdi %r3, 0
beq use_entry_arg
# return transfer_t
std %r6, 0(%r3)
std %r5, 8(%r3)
# jump to context
bctr
use_entry_arg:
# copy transfer_t into transfer_fn arg registers
mr %r3, %r6
mr %r4, %r5
# jump to context
bctr
# ifdef _CALL_LINUX
.size .jump_fcontext, .-.L.jump_fcontext
# else
.size .jump_fcontext, .-.jump_fcontext
# endif
#endif
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_ppc64_sysv_macho_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* | TOC | R14 | R15 | R16 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | R17 | R18 | R19 | R20 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | R21 | R22 | R23 | R24 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | R25 | R26 | R27 | R28 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | R29 | R30 | R31 | hidden | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | *
* ------------------------------------------------- *
* | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | *
* ------------------------------------------------- *
* | CR | LR | PC | back-chain| *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | *
* ------------------------------------------------- *
* | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | *
* ------------------------------------------------- *
* | cr saved | lr saved | compiler | linker | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | *
* ------------------------------------------------- *
* | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 | *
* ------------------------------------------------- *
* | TOC saved | FCTX | DATA | | *
* ------------------------------------------------- *
* *
*******************************************************/
.text
.align 2
.globl _jump_fcontext
_jump_fcontext:
; reserve space on stack
subi r1, r1, 184
std r14, 8(r1) ; save R14
std r15, 16(r1) ; save R15
std r16, 24(r1) ; save R16
std r17, 32(r1) ; save R17
std r18, 40(r1) ; save R18
std r19, 48(r1) ; save R19
std r20, 56(r1) ; save R20
std r21, 64(r1) ; save R21
std r22, 72(r1) ; save R22
std r23, 80(r1) ; save R23
std r24, 88(r1) ; save R24
std r25, 96(r1) ; save R25
std r26, 104(r1) ; save R26
std r27, 112(r1) ; save R27
std r28, 120(r1) ; save R28
std r29, 128(r1) ; save R29
std r30, 136(r1) ; save R30
std r31, 144(r1) ; save R31
std r3, 152(r1) ; save hidden
; save CR
mfcr r0
std r0, 160(r1)
; save LR
mflr r0
std r0, 168(r1)
; save LR as PC
std r0, 176(r1)
; store RSP (pointing to context-data) in R6
mr r6, r1
; restore RSP (pointing to context-data) from R4
mr r1, r4
ld r14, 8(r1) ; restore R14
ld r15, 16(r1) ; restore R15
ld r16, 24(r1) ; restore R16
ld r17, 32(r1) ; restore R17
ld r18, 40(r1) ; restore R18
ld r19, 48(r1) ; restore R19
ld r20, 56(r1) ; restore R20
ld r21, 64(r1) ; restore R21
ld r22, 72(r1) ; restore R22
ld r23, 80(r1) ; restore R23
ld r24, 88(r1) ; restore R24
ld r25, 96(r1) ; restore R25
ld r26, 104(r1) ; restore R26
ld r27, 112(r1) ; restore R27
ld r28, 120(r1) ; restore R28
ld r29, 128(r1) ; restore R29
ld r30, 136(r1) ; restore R30
ld r31, 144(r1) ; restore R31
ld r3, 152(r1) ; restore hidden
; restore CR
ld r0, 160(r1)
mtcr r0
; restore LR
ld r0, 168(r1)
mtlr r0
; load PC
ld r12, 176(r1)
# restore CTR
mtctr r12
# adjust stack
addi r1, r1, 184
# zero in r3 indicates first jump to context-function
cmpdi r3, 0
beq use_entry_arg
# return transfer_t
std r6, 0(r3)
std r5, 8(r3)
# jump to context
bctr
use_entry_arg:
# copy transfer_t into transfer_fn arg registers
mr r3, r6
mr r4, r5
# jump to context
bctr
lib/context_switcher/asm/fcontext/jump_ppc64_sysv_xcoff_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
.align 2
.globl .jump_fcontext
.jump_fcontext:
# reserve space on stack
subi 1, 1, 184
std 13, 0(1) # save R13
std 14, 8(1) # save R14
std 15, 16(1) # save R15
std 16, 24(1) # save R16
std 17, 32(1) # save R17
std 18, 40(1) # save R18
std 19, 48(1) # save R19
std 20, 56(1) # save R20
std 21, 64(1) # save R21
std 22, 72(1) # save R22
std 23, 80(1) # save R23
std 24, 88(1) # save R24
std 25, 96(1) # save R25
std 26, 104(1) # save R26
std 27, 112(1) # save R27
std 29, 120(1) # save R28
std 29, 128(1) # save R29
std 30, 136(1) # save R30
std 31, 144(1) # save R31
std 3, 152(1) # save hidden
# save CR
mfcr 0
std 0, 160(1)
# save LR
mflr 0
std 0, 168(1)
# save LR as PC
std 0, 176(1)
# store RSP (pointing to context-data) in R6
mr 6, 1
# restore RSP (pointing to context-data) from R4
mr 1, 4
ld 13, 0(1) # restore R13
ld 14, 8(1) # restore R14
ld 15, 16(1) # restore R15
ld 16, 24(1) # restore R16
ld 17, 32(1) # restore R17
ld 18, 40(1) # restore R18
ld 19, 48(1) # restore R19
ld 20, 56(1) # restore R20
ld 21, 64(1) # restore R21
ld 22, 72(1) # restore R22
ld 23, 80(1) # restore R23
ld 24, 88(1) # restore R24
ld 25, 96(1) # restore R25
ld 26, 104(1) # restore R26
ld 27, 112(1) # restore R27
ld 28, 120(1) # restore R28
ld 29, 128(1) # restore R29
ld 30, 136(1) # restore R30
ld 31, 144(1) # restore R31
ld 3, 152(1) # restore hidden
# restore CR
ld 0, 160(1)
mtcr 0
# restore LR
ld 0, 168(1)
mtlr 0
# load PC
ld 0, 176(1)
# restore CTR
mtctr 0
# adjust stack
addi 1, 1, 184
# return transfer_t
std 6, 0(3)
std 5, 8(3)
# jump to context
bctr
lib/context_switcher/asm/fcontext/jump_riscv64_sysv_elf_gas.S 0 → 100644
/*
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | fs0 | fs1 | fs2 | fs3 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | fs4 | fs5 | fs6 | fs7 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c| *
* ------------------------------------------------- *
* | fs8 | fs9 | fs10 | fs11 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c| *
* ------------------------------------------------- *
* | s0 | s1 | s2 | s3 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 0x80| 0x84| 0x88| 0x8c| 0x90| 0x94| 0x98| 0x9c| *
* ------------------------------------------------- *
* | s4 | s5 | s6 | s7 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | *
* ------------------------------------------------- *
* | 0xa0| 0xa4| 0xa8| 0xac| 0xb0| 0xb4| 0xb8| 0xbc| *
* ------------------------------------------------- *
* | s8 | s9 | s10 | s11 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 48 | 49 | 50 | 51 | | | | | *
* ------------------------------------------------- *
* | 0xc0| 0xc4| 0xc8| 0xcc| | | | | *
* ------------------------------------------------- *
* | ra | pc | | | *
* ------------------------------------------------- *
* *
*******************************************************/
.file "jump_riscv64_sysv_elf_gas.S"
.text
.align 1
.global jump_fcontext
.type jump_fcontext, %function
jump_fcontext:
# prepare stack for GP + FPU
addi sp, sp, -0xd0
# save fs0 - fs11
fsd fs0, 0x00(sp)
fsd fs1, 0x08(sp)
fsd fs2, 0x10(sp)
fsd fs3, 0x18(sp)
fsd fs4, 0x20(sp)
fsd fs5, 0x28(sp)
fsd fs6, 0x30(sp)
fsd fs7, 0x38(sp)
fsd fs8, 0x40(sp)
fsd fs9, 0x48(sp)
fsd fs10, 0x50(sp)
fsd fs11, 0x58(sp)
# save s0-s11, ra
sd s0, 0x60(sp)
sd s1, 0x68(sp)
sd s2, 0x70(sp)
sd s3, 0x78(sp)
sd s4, 0x80(sp)
sd s5, 0x88(sp)
sd s6, 0x90(sp)
sd s7, 0x98(sp)
sd s8, 0xa0(sp)
sd s9, 0xa8(sp)
sd s10, 0xb0(sp)
sd s11, 0xb8(sp)
sd ra, 0xc0(sp)
# save RA as PC
sd ra, 0xc8(sp)
# store SP (pointing to context-data) in A2
mv a2, sp
# restore SP (pointing to context-data) from A0
mv sp, a0
# load fs0 - fs11
fld fs0, 0x00(sp)
fld fs1, 0x08(sp)
fld fs2, 0x10(sp)
fld fs3, 0x18(sp)
fld fs4, 0x20(sp)
fld fs5, 0x28(sp)
fld fs6, 0x30(sp)
fld fs7, 0x38(sp)
fld fs8, 0x40(sp)
fld fs9, 0x48(sp)
fld fs10, 0x50(sp)
fld fs11, 0x58(sp)
# load s0-s11,ra
ld s0, 0x60(sp)
ld s1, 0x68(sp)
ld s2, 0x70(sp)
ld s3, 0x78(sp)
ld s4, 0x80(sp)
ld s5, 0x88(sp)
ld s6, 0x90(sp)
ld s7, 0x98(sp)
ld s8, 0xa0(sp)
ld s9, 0xa8(sp)
ld s10, 0xb0(sp)
ld s11, 0xb8(sp)
ld ra, 0xc0(sp)
# return transfer_t from jump
# pass transfer_t as first arg in context function
# a0 == FCTX, a1 == DATA
mv a0, a2
# load pc
ld a2, 0xc8(sp)
# restore stack from GP + FPU
addi sp, sp, 0xd0
jr a2
.size jump_fcontext,.-jump_fcontext
# Mark that we don't need executable stack.
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_s390x_sysv_elf_gas.S 0 → 100644
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 8 | 16 | 24 | *
* ------------------------------------------------- *
* | R6 | R7 | R8 | R9 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 40 | 48 | 56 | *
* ------------------------------------------------- *
* | R10 | R11 | R12 | R13 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 72 | 80 | 88 | *
* ------------------------------------------------- *
* | R14/LR | R15 | F1 | F3 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | | *
* ------------------------------------------------- *
* | 96 | 104 | 112 | 120 | *
* ------------------------------------------------- *
* | F5 | F7 | PC | | *
* ------------------------------------------------- *
* *****************************************************/
.file "jump_s390x_sysv_elf_gas.S"
.text
.align 4 # According to the sample code in the ELF ABI docs
.global jump_fcontext
.type jump_fcontext, @function
#define GR_OFFSET 0
#define LR_OFFSET 64
#define SP_OFFSET 72
#define FP_OFFSET 80
#define PC_OFFSET 112
#define L_CTX 120
#define L_STACKFRAME 120
jump_fcontext:
# Reserved the space for stack to store the data of current context
# before we jump to the new context.
aghi %r15,-L_STACKFRAME
# save the registers to the stack
stmg %r6, %r15, GR_OFFSET(%r15)
# save the floating point registers
std %f0,FP_OFFSET(%r15)
std %f3,FP_OFFSET+8(%r15)
std %f5,FP_OFFSET+16(%r15)
std %f7,FP_OFFSET+24(%r15)
# Save LR as PC
stg %r14,PC_OFFSET(%r15)
# Store the SP pointing to the old context-data into R0
lgr %r0,%r15
# Get the SP pointing to the new context-data
# Note: Since the return type of the jump_fcontext is struct whose
# size is more than 8. The compiler automatically passes the
# address of the transfer_t where the data needs to store into R2.
# Hence the first param passed to the jump_fcontext which represent
# the fctx we want to switch to is present in R3
# R2 --> Address of the return transfer_t struct
# R3 --> Context we want to switch to
# R4 --> Data
lgr %r15,%r3
# Load the registers with the data present in context-data of the
# context we are going to switch to
lmg %r6, %r14, GR_OFFSET(%r15)
# Restore Floating point registers
ld %f1,FP_OFFSET(%r15)
ld %f3,FP_OFFSET+8(%r15)
ld %f5,FP_OFFSET+16(%r15)
ld %f7,FP_OFFSET+24(%r15)
# Load PC
lg %r1,PC_OFFSET(%r15)
# Adjust the stack
aghi %r15,120
# R2 --> Address where the return transfer_t is stored
# R0 --> FCTX
# R4 --> DATA
# Store the elements to return transfer_t
stg %r15, 0(%r2)
stg %r4, 8(%r2)
# Note: The address in R2 points to the place where the return
# transfer_t is stored. Since context_function take transfer_t
# as first parameter. And R2 is the register which holds the
# first parameter value.
#jump to context
br %r1
.size jump_fcontext,.-jump_fcontext
# Mark that we don't need executable stack.
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_x86_64_ms_pe_masm.asm 0 → 100644
; Copyright Oliver Kowalke 2009.
; Distributed under the Boost Software License, Version 1.0.
; (See accompanying file LICENSE_1_0.txt or copy at
; http://www.boost.org/LICENSE_1_0.txt)
; ----------------------------------------------------------------------------------
; | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
; ----------------------------------------------------------------------------------
; | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c |
; ----------------------------------------------------------------------------------
; | SEE registers (XMM6-XMM15) |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
; ----------------------------------------------------------------------------------
; | 0x20 | 0x24 | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c |
; ----------------------------------------------------------------------------------
; | SEE registers (XMM6-XMM15) |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
; ----------------------------------------------------------------------------------
; | 0xe40 | 0x44 | 0x48 | 0x4c | 0x50 | 0x54 | 0x58 | 0x5c |
; ----------------------------------------------------------------------------------
; | SEE registers (XMM6-XMM15) |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
; ----------------------------------------------------------------------------------
; | 0x60 | 0x64 | 0x68 | 0x6c | 0x70 | 0x74 | 0x78 | 0x7c |
; ----------------------------------------------------------------------------------
; | SEE registers (XMM6-XMM15) |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 32 | 32 | 33 | 34 | 35 | 36 | 37 | 38 |
; ----------------------------------------------------------------------------------
; | 0x80 | 0x84 | 0x88 | 0x8c | 0x90 | 0x94 | 0x98 | 0x9c |
; ----------------------------------------------------------------------------------
; | SEE registers (XMM6-XMM15) |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 |
; ----------------------------------------------------------------------------------
; | 0xa0 | 0xa4 | 0xa8 | 0xac | 0xb0 | 0xb4 | 0xb8 | 0xbc |
; ----------------------------------------------------------------------------------
; | fc_mxcsr|fc_x87_cw| <alignment> | fbr_strg | fc_dealloc |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 |
; ----------------------------------------------------------------------------------
; | 0xc0 | 0xc4 | 0xc8 | 0xcc | 0xd0 | 0xd4 | 0xd8 | 0xdc |
; ----------------------------------------------------------------------------------
; | limit | base | R12 | R13 |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 |
; ----------------------------------------------------------------------------------
; | 0xe0 | 0xe4 | 0xe8 | 0xec | 0xf0 | 0xf4 | 0xf8 | 0xfc |
; ----------------------------------------------------------------------------------
; | R14 | R15 | RDI | RSI |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 |
; ----------------------------------------------------------------------------------
; | 0x100 | 0x104 | 0x108 | 0x10c | 0x110 | 0x114 | 0x118 | 0x11c |
; ----------------------------------------------------------------------------------
; | RBX | RBP | hidden | RIP |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 |
; ----------------------------------------------------------------------------------
; | 0x120 | 0x124 | 0x128 | 0x12c | 0x130 | 0x134 | 0x138 | 0x13c |
; ----------------------------------------------------------------------------------
; | parameter area |
; ----------------------------------------------------------------------------------
; ----------------------------------------------------------------------------------
; | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 |
; ----------------------------------------------------------------------------------
; | 0x140 | 0x144 | 0x148 | 0x14c | 0x150 | 0x154 | 0x158 | 0x15c |
; ----------------------------------------------------------------------------------
; | FCTX | DATA | |
; ----------------------------------------------------------------------------------
.code
jump_fcontext PROC BOOST_CONTEXT_EXPORT FRAME
.endprolog
; prepare stack
lea rsp, [rsp-0118h]
IFNDEF BOOST_USE_TSX
; save XMM storage
movaps [rsp], xmm6
movaps [rsp+010h], xmm7
movaps [rsp+020h], xmm8
movaps [rsp+030h], xmm9
movaps [rsp+040h], xmm10
movaps [rsp+050h], xmm11
movaps [rsp+060h], xmm12
movaps [rsp+070h], xmm13
movaps [rsp+080h], xmm14
movaps [rsp+090h], xmm15
; save MMX control- and status-word
stmxcsr [rsp+0a0h]
; save x87 control-word
fnstcw [rsp+0a4h]
ENDIF
; load NT_TIB
mov r10, gs:[030h]
; save fiber local storage
mov rax, [r10+020h]
mov [rsp+0b0h], rax
; save current deallocation stack
mov rax, [r10+01478h]
mov [rsp+0b8h], rax
; save current stack limit
mov rax, [r10+010h]
mov [rsp+0c0h], rax
; save current stack base
mov rax, [r10+08h]
mov [rsp+0c8h], rax
mov [rsp+0d0h], r12 ; save R12
mov [rsp+0d8h], r13 ; save R13
mov [rsp+0e0h], r14 ; save R14
mov [rsp+0e8h], r15 ; save R15
mov [rsp+0f0h], rdi ; save RDI
mov [rsp+0f8h], rsi ; save RSI
mov [rsp+0100h], rbx ; save RBX
mov [rsp+0108h], rbp ; save RBP
mov [rsp+0110h], rcx ; save hidden address of transport_t
; preserve RSP (pointing to context-data) in R9
mov r9, rsp
; restore RSP (pointing to context-data) from RDX
mov rsp, rdx
IFNDEF BOOST_USE_TSX
; restore XMM storage
movaps xmm6, [rsp]
movaps xmm7, [rsp+010h]
movaps xmm8, [rsp+020h]
movaps xmm9, [rsp+030h]
movaps xmm10, [rsp+040h]
movaps xmm11, [rsp+050h]
movaps xmm12, [rsp+060h]
movaps xmm13, [rsp+070h]
movaps xmm14, [rsp+080h]
movaps xmm15, [rsp+090h]
; restore MMX control- and status-word
ldmxcsr [rsp+0a0h]
; save x87 control-word
fldcw [rsp+0a4h]
ENDIF
; load NT_TIB
mov r10, gs:[030h]
; restore fiber local storage
mov rax, [rsp+0b0h]
mov [r10+020h], rax
; restore current deallocation stack
mov rax, [rsp+0b8h]
mov [r10+01478h], rax
; restore current stack limit
mov rax, [rsp+0c0h]
mov [r10+010h], rax
; restore current stack base
mov rax, [rsp+0c8h]
mov [r10+08h], rax
mov r12, [rsp+0d0h] ; restore R12
mov r13, [rsp+0d8h] ; restore R13
mov r14, [rsp+0e0h] ; restore R14
mov r15, [rsp+0e8h] ; restore R15
mov rdi, [rsp+0f0h] ; restore RDI
mov rsi, [rsp+0f8h] ; restore RSI
mov rbx, [rsp+0100h] ; restore RBX
mov rbp, [rsp+0108h] ; restore RBP
mov rax, [rsp+0110h] ; restore hidden address of transport_t
; prepare stack
lea rsp, [rsp+0118h]
; load return-address
pop r10
; transport_t returned in RAX
; return parent fcontext_t
mov [rax], r9
; return data
mov [rax+08h], r8
; transport_t as 1.arg of context-function
mov rcx, rax
; indirect jump to context
jmp r10
jump_fcontext ENDP
END
lib/context_switcher/asm/fcontext/jump_x86_64_sysv_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/****************************************************************************************
* *
* ---------------------------------------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ---------------------------------------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
* ---------------------------------------------------------------------------------- *
* | fc_mxcsr|fc_x87_cw| R12 | R13 | R14 | *
* ---------------------------------------------------------------------------------- *
* ---------------------------------------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ---------------------------------------------------------------------------------- *
* | 0x20 | 0x24 | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c | *
* ---------------------------------------------------------------------------------- *
* | R15 | RBX | RBP | RIP | *
* ---------------------------------------------------------------------------------- *
* *
****************************************************************************************/
.file "jump_x86_64_sysv_elf_gas.S"
.text
.globl jump_fcontext
.type jump_fcontext,@function
.align 16
jump_fcontext:
leaq -0x38(%rsp), %rsp /* prepare stack */
#if !defined(BOOST_USE_TSX)
stmxcsr (%rsp) /* save MMX control- and status-word */
fnstcw 0x4(%rsp) /* save x87 control-word */
#endif
movq %r12, 0x8(%rsp) /* save R12 */
movq %r13, 0x10(%rsp) /* save R13 */
movq %r14, 0x18(%rsp) /* save R14 */
movq %r15, 0x20(%rsp) /* save R15 */
movq %rbx, 0x28(%rsp) /* save RBX */
movq %rbp, 0x30(%rsp) /* save RBP */
/* store RSP (pointing to context-data) in RAX */
movq %rsp, %rax
/* restore RSP (pointing to context-data) from RDI */
movq %rdi, %rsp
movq 0x38(%rsp), %r8 /* restore return-address */
#if !defined(BOOST_USE_TSX)
ldmxcsr (%rsp) /* restore MMX control- and status-word */
fldcw 0x4(%rsp) /* restore x87 control-word */
#endif
movq 0x8(%rsp), %r12 /* restore R12 */
movq 0x10(%rsp), %r13 /* restore R13 */
movq 0x18(%rsp), %r14 /* restore R14 */
movq 0x20(%rsp), %r15 /* restore R15 */
movq 0x28(%rsp), %rbx /* restore RBX */
movq 0x30(%rsp), %rbp /* restore RBP */
leaq 0x40(%rsp), %rsp /* prepare stack */
/* return transfer_t from jump */
/* RAX == fctx, RDX == data */
movq %rsi, %rdx
/* pass transfer_t as first arg in context function */
/* RDI == fctx, RSI == data */
movq %rax, %rdi
/* indirect jump to context */
jmp *%r8
.size jump_fcontext,.-jump_fcontext
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/jump_x86_64_sysv_macho_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/****************************************************************************************
* *
* ---------------------------------------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ---------------------------------------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
* ---------------------------------------------------------------------------------- *
* | fc_mxcsr|fc_x87_cw| R12 | R13 | R14 | *
* ---------------------------------------------------------------------------------- *
* ---------------------------------------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ---------------------------------------------------------------------------------- *
* | 0x20 | 0x24 | 0x28 | 0x2c | 0x30 | 0x34 | 0x38 | 0x3c | *
* ---------------------------------------------------------------------------------- *
* | R15 | RBX | RBP | RIP | *
* ---------------------------------------------------------------------------------- *
* *
****************************************************************************************/
.text
.globl _jump_fcontext
.align 8
_jump_fcontext:
leaq -0x38(%rsp), %rsp /* prepare stack */
#if !defined(BOOST_USE_TSX)
stmxcsr (%rsp) /* save MMX control- and status-word */
fnstcw 0x4(%rsp) /* save x87 control-word */
#endif
movq %r12, 0x8(%rsp) /* save R12 */
movq %r13, 0x10(%rsp) /* save R13 */
movq %r14, 0x18(%rsp) /* save R14 */
movq %r15, 0x20(%rsp) /* save R15 */
movq %rbx, 0x28(%rsp) /* save RBX */
movq %rbp, 0x30(%rsp) /* save RBP */
/* store RSP (pointing to context-data) in RAX */
movq %rsp, %rax
/* restore RSP (pointing to context-data) from RDI */
movq %rdi, %rsp
movq 0x38(%rsp), %r8 /* restore return-address */
#if !defined(BOOST_USE_TSX)
ldmxcsr (%rsp) /* restore MMX control- and status-word */
fldcw 0x4(%rsp) /* restore x87 control-word */
#endif
movq 0x8(%rsp), %r12 /* restore R12 */
movq 0x10(%rsp), %r13 /* restore R13 */
movq 0x18(%rsp), %r14 /* restore R14 */
movq 0x20(%rsp), %r15 /* restore R15 */
movq 0x28(%rsp), %rbx /* restore RBX */
movq 0x30(%rsp), %rbp /* restore RBP */
leaq 0x40(%rsp), %rsp /* prepare stack */
/* return transfer_t from jump */
/* RAX == fctx, RDX == data */
movq %rsi, %rdx
/* pass transfer_t as first arg in context function */
/* RDI == fctx, RSI == data */
movq %rax, %rdi
/* indirect jump to context */
jmp *%r8
lib/context_switcher/asm/fcontext/make_arm64_aapcs_elf_gas.S 0 → 100644
/*
Copyright Edward Nevill + Oliver Kowalke 2015
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | d8 | d9 | d10 | d11 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | d12 | d13 | d14 | d15 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c| *
* ------------------------------------------------- *
* | x19 | x20 | x21 | x22 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c| *
* ------------------------------------------------- *
* | x23 | x24 | x25 | x26 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 0x80| 0x84| 0x88| 0x8c| 0x90| 0x94| 0x98| 0x9c| *
* ------------------------------------------------- *
* | x27 | x28 | FP | LR | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | | | *
* ------------------------------------------------- *
* | 0xa0| 0xa4| 0xa8| 0xac| | | *
* ------------------------------------------------- *
* | PC | align | | | *
* ------------------------------------------------- *
* *
*******************************************************/
.file "make_arm64_aapcs_elf_gas.S"
.text
.align 2
.global make_fcontext
.type make_fcontext, %function
make_fcontext:
# shift address in x0 (allocated stack) to lower 16 byte boundary
and x0, x0, ~0xF
# reserve space for context-data on context-stack
sub x0, x0, #0xb0
# third arg of make_fcontext() == address of context-function
# store address as a PC to jump in
str x2, [x0, #0xa0]
# save address of finish as return-address for context-function
# will be entered after context-function returns (LR register)
adr x1, finish
str x1, [x0, #0x98]
ret x30 // return pointer to context-data (x0)
finish:
# exit code is zero
mov x0, #0
# exit application
bl _exit
.size make_fcontext,.-make_fcontext
# Mark that we don't need executable stack.
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/make_arm64_aapcs_macho_gas.S 0 → 100644
/*
Copyright Edward Nevill + Oliver Kowalke 2015
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | d8 | d9 | d10 | d11 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | d12 | d13 | d14 | d15 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c| *
* ------------------------------------------------- *
* | x19 | x20 | x21 | x22 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c| *
* ------------------------------------------------- *
* | x23 | x24 | x25 | x26 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 0x80| 0x84| 0x88| 0x8c| 0x90| 0x94| 0x98| 0x9c| *
* ------------------------------------------------- *
* | x27 | x28 | FP | LR | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | | | *
* ------------------------------------------------- *
* | 0xa0| 0xa4| 0xa8| 0xac| | | *
* ------------------------------------------------- *
* | PC | align | | | *
* ------------------------------------------------- *
* *
*******************************************************/
.text
.globl _make_fcontext
.balign 16
_make_fcontext:
; shift address in x0 (allocated stack) to lower 16 byte boundary
and x0, x0, ~0xF
; reserve space for context-data on context-stack
sub x0, x0, #0xb0
; third arg of make_fcontext() == address of context-function
; store address as a PC to jump in
str x2, [x0, #0xa0]
; compute abs address of label finish
; 0x0c = 3 instructions * size (4) before label 'finish'
; TODO: Numeric offset since llvm still does not support labels in ADR. Fix:
; http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20140407/212336.html
adr x1, 0x0c
; save address of finish as return-address for context-function
; will be entered after context-function returns (LR register)
str x1, [x0, #0x98]
ret lr ; return pointer to context-data (x0)
finish:
; exit code is zero
mov x0, #0
; exit application
bl __exit
lib/context_switcher/asm/fcontext/make_arm_aapcs_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | s16 | s17 | s18 | s19 | s20 | s21 | s22 | s23 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | s24 | s25 | s26 | s27 | s28 | s29 | s30 | s31 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58| 0x5c| *
* ------------------------------------------------- *
* |hiddn| v1 | v2 | v3 | v4 | v5 | v6 | v7 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 0x60| 0x64| 0x68| 0x6c| 0x70| 0x74| 0x78| 0x7c| *
* ------------------------------------------------- *
* | v8 | lr | pc | FCTX| DATA| | *
* ------------------------------------------------- *
* *
*******************************************************/
.file "make_arm_aapcs_elf_gas.S"
.text
.globl make_fcontext
.align 2
.type make_fcontext,%function
.syntax unified
make_fcontext:
@ shift address in A1 to lower 16 byte boundary
bic a1, a1, #15
@ reserve space for context-data on context-stack
sub a1, a1, #124
@ third arg of make_fcontext() == address of context-function
str a3, [a1, #104]
@ compute address of returned transfer_t
add a2, a1, #108
mov a3, a2
str a3, [a1, #64]
@ compute abs address of label finish
adr a2, finish
@ save address of finish as return-address for context-function
@ will be entered after context-function returns
str a2, [a1, #100]
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
#endif
bx lr @ return pointer to context-data
finish:
@ exit code is zero
mov a1, #0
@ exit application
bl _exit@PLT
.size make_fcontext,.-make_fcontext
@ Mark that we don't need executable stack.
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/make_arm_aapcs_macho_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | s16 | s17 | s18 | s19 | s20 | s21 | s22 | s23 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | s24 | s25 | s26 | s27 | s28 | s29 | s30 | s31 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
* ------------------------------------------------- *
* | sjlj|hiddn| v1 | v2 | v3 | v4 | v5 | v6 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
* ------------------------------------------------- *
* | v7 | v8 | lr | pc | FCTX| DATA| | *
* ------------------------------------------------- *
* *
*******************************************************/
.text
.globl _make_fcontext
.align 2
_make_fcontext:
@ shift address in A1 to lower 16 byte boundary
bic a1, a1, #15
@ reserve space for context-data on context-stack
sub a1, a1, #124
@ third arg of make_fcontext() == address of context-function
str a3, [a1, #108]
@ compute address of returned transfer_t
add a2, a1, #112
mov a3, a2
str a3, [a1, #68]
@ compute abs address of label finish
adr a2, finish
@ save address of finish as return-address for context-function
@ will be entered after context-function returns
str a2, [a1, #104]
bx lr @ return pointer to context-data
finish:
@ exit code is zero
mov a1, #0
@ exit application
bl __exit
lib/context_switcher/asm/fcontext/make_arm_aapcs_pe_armasm.asm 0 → 100644
;/*
; Copyright Oliver Kowalke 2009.
; Distributed under the Boost Software License, Version 1.0.
; (See accompanying file LICENSE_1_0.txt or copy at
; http://www.boost.org/LICENSE_1_0.txt)
;*/
; *******************************************************
; * *
; * ------------------------------------------------- *
; * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
; * ------------------------------------------------- *
; * | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| *
; * ------------------------------------------------- *
; * |deall|limit| base|hiddn| v1 | v2 | v3 | v4 | *
; * ------------------------------------------------- *
; * ------------------------------------------------- *
; * | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
; * ------------------------------------------------- *
; * | 0x20| 0x24| 0x28| 0x2c| 0x30| 0x34| 0x38| 0x3c| *
; * ------------------------------------------------- *
; * | v5 | v6 | v7 | v8 | lr | pc | FCTX| DATA| *
; * ------------------------------------------------- *
; * *
; *******************************************************
AREA |.text|, CODE
ALIGN 4
EXPORT make_fcontext
IMPORT _exit
make_fcontext PROC
; first arg of make_fcontext() == top of context-stack
; save top of context-stack (base) A4
mov a4, a1
; shift address in A1 to lower 16 byte boundary
bic a1, a1, #0x0f
; reserve space for context-data on context-stack
sub a1, a1, #0x48
; save top address of context_stack as 'base'
str a4, [a1, #0x8]
; second arg of make_fcontext() == size of context-stack
; compute bottom address of context-stack (limit)
sub a4, a4, a2
; save bottom address of context-stack as 'limit'
str a4, [a1, #0x4]
; save bottom address of context-stack as 'dealloction stack'
str a4, [a1, #0x0]
; third arg of make_fcontext() == address of context-function
str a3, [a1, #0x34]
; compute address of returned transfer_t
add a2, a1, #0x38
mov a3, a2
str a3, [a1, #0xc]
; compute abs address of label finish
adr a2, finish
; save address of finish as return-address for context-function
; will be entered after context-function returns
str a2, [a1, #0x30]
bx lr ; return pointer to context-data
finish
; exit code is zero
mov a1, #0
; exit application
bl _exit
ENDP
END
lib/context_switcher/asm/fcontext/make_combined_sysv_macho_gas.S 0 → 100644
/*
Copyright Sergue E. Leontiev 2013.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
// Stub file for universal binary
#if defined(__i386__)
#include "make_i386_sysv_macho_gas.S"
#elif defined(__x86_64__)
#include "make_x86_64_sysv_macho_gas.S"
#elif defined(__ppc__)
#include "make_ppc32_sysv_macho_gas.S"
#elif defined(__ppc64__)
#include "make_ppc64_sysv_macho_gas.S"
#else
#error "No arch's"
#endif
lib/context_switcher/asm/fcontext/make_i386_ms_pe_gas.asm 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Copyright Thomas Sailer 2013.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*************************************************************************************
* --------------------------------------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* --------------------------------------------------------------------------------- *
* | 0h | 04h | 08h | 0ch | 010h | 014h | 018h | 01ch | *
* --------------------------------------------------------------------------------- *
* | fc_mxcsr|fc_x87_cw| fc_strg |fc_deallo| limit | base | fc_seh | EDI | *
* --------------------------------------------------------------------------------- *
* --------------------------------------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* --------------------------------------------------------------------------------- *
* | 020h | 024h | 028h | 02ch | 030h | 034h | 038h | 03ch | *
* --------------------------------------------------------------------------------- *
* | ESI | EBX | EBP | EIP | to | data | EH NXT |SEH HNDLR| *
* --------------------------------------------------------------------------------- *
**************************************************************************************/
.file "make_i386_ms_pe_gas.asm"
.text
.p2align 4,,15
/* mark as using no unregistered SEH handlers */
.globl @feat.00
.def @feat.00; .scl 3; .type 0; .endef
.set @feat.00, 1
.globl _make_fcontext
.def _make_fcontext; .scl 2; .type 32; .endef
_make_fcontext:
/* first arg of make_fcontext() == top of context-stack */
movl 0x04(%esp), %eax
/* reserve space for first argument of context-function */
/* EAX might already point to a 16byte border */
leal -0x8(%eax), %eax
/* shift address in EAX to lower 16 byte boundary */
andl $-16, %eax
/* reserve space for context-data on context-stack */
/* size for fc_mxcsr .. EIP + return-address for context-function */
/* on context-function entry: (ESP -0x4) % 8 == 0 */
/* additional space is required for SEH */
leal -0x40(%eax), %eax
/* save MMX control- and status-word */
stmxcsr (%eax)
/* save x87 control-word */
fnstcw 0x4(%eax)
/* first arg of make_fcontext() == top of context-stack */
movl 0x4(%esp), %ecx
/* save top address of context stack as 'base' */
movl %ecx, 0x14(%eax)
/* second arg of make_fcontext() == size of context-stack */
movl 0x8(%esp), %edx
/* negate stack size for LEA instruction (== substraction) */
negl %edx
/* compute bottom address of context stack (limit) */
leal (%ecx,%edx), %ecx
/* save bottom address of context-stack as 'limit' */
movl %ecx, 0x10(%eax)
/* save bottom address of context-stack as 'dealloction stack' */
movl %ecx, 0xc(%eax)
/* set fiber-storage to zero */
xorl %ecx, %ecx
movl %ecx, 0x8(%eax)
/* third arg of make_fcontext() == address of context-function */
/* stored in EBX */
movl 0xc(%esp), %ecx
movl %ecx, 0x24(%eax)
/* compute abs address of label trampoline */
movl $trampoline, %ecx
/* save address of trampoline as return-address for context-function */
/* will be entered after calling jump_fcontext() first time */
movl %ecx, 0x2c(%eax)
/* compute abs address of label finish */
movl $finish, %ecx
/* save address of finish as return-address for context-function */
/* will be entered after context-function returns */
movl %ecx, 0x28(%eax)
/* traverse current seh chain to get the last exception handler installed by Windows */
/* note that on Windows Server 2008 and 2008 R2, SEHOP is activated by default */
/* the exception handler chain is tested for the presence of ntdll.dll!FinalExceptionHandler */
/* at its end by RaiseException all seh andlers are disregarded if not present and the */
/* program is aborted */
/* load NT_TIB into ECX */
movl %fs:(0x0), %ecx
walk:
/* load 'next' member of current SEH into EDX */
movl (%ecx), %edx
/* test if 'next' of current SEH is last (== 0xffffffff) */
incl %edx
jz found
decl %edx
/* exchange content; ECX contains address of next SEH */
xchgl %ecx, %edx
/* inspect next SEH */
jmp walk
found:
/* load 'handler' member of SEH == address of last SEH handler installed by Windows */
movl 0x04(%ecx), %ecx
/* save address in ECX as SEH handler for context */
movl %ecx, 0x3c(%eax)
/* set ECX to -1 */
movl $0xffffffff, %ecx
/* save ECX as next SEH item */
movl %ecx, 0x38(%eax)
/* load address of next SEH item */
leal 0x38(%eax), %ecx
/* save next SEH */
movl %ecx, 0x18(%eax)
/* return pointer to context-data */
ret
trampoline:
/* move transport_t for entering context-function */
/* FCTX == EAX, DATA == EDX */
movl %eax, (%esp)
movl %edx, 0x4(%esp)
/* label finish as return-address */
pushl %ebp
/* jump to context-function */
jmp *%ebx
finish:
/* ESP points to same address as ESP on entry of context function + 0x4 */
xorl %eax, %eax
/* exit code is zero */
movl %eax, (%esp)
/* exit application */
call __exit
hlt
.def __exit; .scl 2; .type 32; .endef /* standard C library function */
.section .drectve
.ascii " -export:\"_make_fcontext\""
lib/context_switcher/asm/fcontext/make_i386_ms_pe_masm.asm 0 → 100644
; Copyright Oliver Kowalke 2009.
; Distributed under the Boost Software License, Version 1.0.
; (See accompanying file LICENSE_1_0.txt or copy at
; http://www.boost.org/LICENSE_1_0.txt)
; ---------------------------------------------------------------------------------
; | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
; ---------------------------------------------------------------------------------
; | 0h | 04h | 08h | 0ch | 010h | 014h | 018h | 01ch |
; ---------------------------------------------------------------------------------
; | fc_mxcsr|fc_x87_cw| fc_strg |fc_deallo| limit | base | fc_seh | EDI |
; ---------------------------------------------------------------------------------
; ---------------------------------------------------------------------------------
; | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
; ---------------------------------------------------------------------------------
; | 020h | 024h | 028h | 02ch | 030h | 034h | 038h | 03ch |
; ---------------------------------------------------------------------------------
; | ESI | EBX | EBP | EIP | to | data | EH NXT |SEH HNDLR|
; ---------------------------------------------------------------------------------
.386
.XMM
.model flat, c
; standard C library function
_exit PROTO, value:SDWORD
.code
make_fcontext PROC BOOST_CONTEXT_EXPORT
; first arg of make_fcontext() == top of context-stack
mov eax, [esp+04h]
; reserve space for first argument of context-function
; EAX might already point to a 16byte border
lea eax, [eax-08h]
; shift address in EAX to lower 16 byte boundary
and eax, -16
; reserve space for context-data on context-stack
; on context-function entry: (ESP -0x4) % 8 == 0
; additional space is required for SEH
lea eax, [eax-040h]
; save MMX control- and status-word
stmxcsr [eax]
; save x87 control-word
fnstcw [eax+04h]
; first arg of make_fcontext() == top of context-stack
mov ecx, [esp+04h]
; save top address of context stack as 'base'
mov [eax+014h], ecx
; second arg of make_fcontext() == size of context-stack
mov edx, [esp+08h]
; negate stack size for LEA instruction (== substraction)
neg edx
; compute bottom address of context stack (limit)
lea ecx, [ecx+edx]
; save bottom address of context-stack as 'limit'
mov [eax+010h], ecx
; save bottom address of context-stack as 'dealloction stack'
mov [eax+0ch], ecx
; set fiber-storage to zero
xor ecx, ecx
mov [eax+08h], ecx
; third arg of make_fcontext() == address of context-function
; stored in EBX
mov ecx, [esp+0ch]
mov [eax+024h], ecx
; compute abs address of label trampoline
mov ecx, trampoline
; save address of trampoline as return-address for context-function
; will be entered after calling jump_fcontext() first time
mov [eax+02ch], ecx
; compute abs address of label finish
mov ecx, finish
; save address of finish as return-address for context-function in EBP
; will be entered after context-function returns
mov [eax+028h], ecx
; traverse current seh chain to get the last exception handler installed by Windows
; note that on Windows Server 2008 and 2008 R2, SEHOP is activated by default
; the exception handler chain is tested for the presence of ntdll.dll!FinalExceptionHandler
; at its end by RaiseException all seh-handlers are disregarded if not present and the
; program is aborted
assume fs:nothing
; load NT_TIB into ECX
mov ecx, fs:[0h]
assume fs:error
walk:
; load 'next' member of current SEH into EDX
mov edx, [ecx]
; test if 'next' of current SEH is last (== 0xffffffff)
inc edx
jz found
dec edx
; exchange content; ECX contains address of next SEH
xchg edx, ecx
; inspect next SEH
jmp walk
found:
; load 'handler' member of SEH == address of last SEH handler installed by Windows
mov ecx, [ecx+04h]
; save address in ECX as SEH handler for context
mov [eax+03ch], ecx
; set ECX to -1
mov ecx, 0ffffffffh
; save ECX as next SEH item
mov [eax+038h], ecx
; load address of next SEH item
lea ecx, [eax+038h]
; save next SEH
mov [eax+018h], ecx
ret ; return pointer to context-data
trampoline:
; move transport_t for entering context-function
; FCTX == EAX, DATA == EDX
mov [esp], eax
mov [esp+04h], edx
push ebp
; jump to context-function
jmp ebx
finish:
; exit code is zero
xor eax, eax
mov [esp], eax
; exit application
call _exit
hlt
make_fcontext ENDP
END
lib/context_switcher/asm/fcontext/make_i386_sysv_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/****************************************************************************************
* *
* ---------------------------------------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ---------------------------------------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
* ---------------------------------------------------------------------------------- *
* | fc_mxcsr|fc_x87_cw| EDI | ESI | EBX | EBP | EIP | hidden | *
* ---------------------------------------------------------------------------------- *
* ---------------------------------------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ---------------------------------------------------------------------------------- *
* | 0x20 | 0x24 | | *
* ---------------------------------------------------------------------------------- *
* | to | data | | *
* ---------------------------------------------------------------------------------- *
* *
****************************************************************************************/
.file "make_i386_sysv_elf_gas.S"
.text
.globl make_fcontext
.align 2
.type make_fcontext,@function
make_fcontext:
/* first arg of make_fcontext() == top of context-stack */
movl 0x4(%esp), %eax
/* reserve space for first argument of context-function
eax might already point to a 16byte border */
leal -0x8(%eax), %eax
/* shift address in EAX to lower 16 byte boundary */
andl $-16, %eax
/* reserve space for context-data on context-stack */
leal -0x28(%eax), %eax
/* third arg of make_fcontext() == address of context-function */
/* stored in EBX */
movl 0xc(%esp), %ecx
movl %ecx, 0x10(%eax)
/* save MMX control- and status-word */
stmxcsr (%eax)
/* save x87 control-word */
fnstcw 0x4(%eax)
/* return transport_t */
/* FCTX == EDI, DATA == ESI */
leal 0x8(%eax), %ecx
movl %ecx, 0x1c(%eax)
/* compute abs address of label trampoline */
call 1f
/* address of trampoline 1 */
1: popl %ecx
/* compute abs address of label trampoline */
addl $trampoline-1b, %ecx
/* save address of trampoline as return address */
/* will be entered after calling jump_fcontext() first time */
movl %ecx, 0x18(%eax)
/* compute abs address of label finish */
call 2f
/* address of label 2 */
2: popl %ecx
/* compute abs address of label finish */
addl $finish-2b, %ecx
/* save address of finish as return-address for context-function */
/* will be entered after context-function returns */
movl %ecx, 0x14(%eax)
ret /* return pointer to context-data */
trampoline:
/* move transport_t for entering context-function */
movl %edi, (%esp)
movl %esi, 0x4(%esp)
pushl %ebp
/* jump to context-function */
jmp *%ebx
finish:
call 3f
/* address of label 3 */
3: popl %ebx
/* compute address of GOT and store it in EBX */
addl $_GLOBAL_OFFSET_TABLE_+[.-3b], %ebx
/* exit code is zero */
xorl %eax, %eax
movl %eax, (%esp)
/* exit application */
call _exit@PLT
hlt
.size make_fcontext,.-make_fcontext
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/make_i386_sysv_macho_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/****************************************************************************************
* *
* ---------------------------------------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ---------------------------------------------------------------------------------- *
* | 0x0 | 0x4 | 0x8 | 0xc | 0x10 | 0x14 | 0x18 | 0x1c | *
* ---------------------------------------------------------------------------------- *
* | fc_mxcsr|fc_x87_cw| EDI | ESI | EBX | EBP | EIP | to | *
* ---------------------------------------------------------------------------------- *
* ---------------------------------------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ---------------------------------------------------------------------------------- *
* | 0x20 | | *
* ---------------------------------------------------------------------------------- *
* | data | | *
* ---------------------------------------------------------------------------------- *
* *
****************************************************************************************/
.text
.globl _make_fcontext
.align 2
_make_fcontext:
/* first arg of make_fcontext() == top of context-stack */
movl 0x4(%esp), %eax
/* reserve space for first argument of context-function
eax might already point to a 16byte border */
leal -0x8(%eax), %eax
/* shift address in EAX to lower 16 byte boundary */
andl $-16, %eax
/* reserve space for context-data on context-stack */
leal -0x2c(%eax), %eax
/* third arg of make_fcontext() == address of context-function */
/* stored in EBX */
movl 0xc(%esp), %ecx
movl %ecx, 0x10(%eax)
/* save MMX control- and status-word */
stmxcsr (%eax)
/* save x87 control-word */
fnstcw 0x4(%eax)
/* compute abs address of label trampoline */
call 1f
/* address of trampoline 1 */
1: popl %ecx
/* compute abs address of label trampoline */
addl $trampoline-1b, %ecx
/* save address of trampoline as return address */
/* will be entered after calling jump_fcontext() first time */
movl %ecx, 0x18(%eax)
/* compute abs address of label finish */
call 2f
/* address of label 2 */
2: popl %ecx
/* compute abs address of label finish */
addl $finish-2b, %ecx
/* save address of finish as return-address for context-function */
/* will be entered after context-function returns */
movl %ecx, 0x14(%eax)
ret /* return pointer to context-data */
trampoline:
/* move transport_t for entering context-function */
movl %eax, (%esp)
movl %edx, 0x4(%esp)
pushl %ebp
/* jump to context-function */
jmp *%ebx
finish:
/* exit code is zero */
xorl %eax, %eax
movl %eax, (%esp)
/* exit application */
call __exit
hlt
lib/context_switcher/asm/fcontext/make_i386_x86_64_sysv_macho_gas.S 0 → 100644
/*
Copyright Sergue E. Leontiev 2013.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
// Stub file for universal binary
#if defined(__i386__)
#include "make_i386_sysv_macho_gas.S"
#elif defined(__x86_64__)
#include "make_x86_64_sysv_macho_gas.S"
#else
#error "No arch's"
#endif
lib/context_switcher/asm/fcontext/make_mips32_o32_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* | F20 | F22 | F24 | F26 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | F28 | F30 | S0 | S1 | S2 | S3 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | S4 | S5 | S6 | S7 | FP |hiddn| RA | PC | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | ABI ARGS | GP | FCTX| DATA| | *
* ------------------------------------------------- *
* *
* *****************************************************/
.file "make_mips32_o32_elf_gas.S"
.text
.globl make_fcontext
.align 2
.type make_fcontext,@function
.ent make_fcontext
make_fcontext:
#ifdef __PIC__
.set noreorder
.cpload $t9
.set reorder
#endif
# shift address in A0 to lower 16 byte boundary
li $v1, -16 # 0xfffffffffffffff0
and $v0, $v1, $a0
# reserve space for context-data on context-stack
# includes an extra 32 bytes for:
# - 16-byte incoming argument area required by mips ABI used when
# jump_context calls the initial function
# - 4 bytes to save our GP register used in finish
# - 8 bytes to as space for transfer_t returned to finish
# - 4 bytes for alignment
addiu $v0, $v0, -128
# third arg of make_fcontext() == address of context-function
sw $a2, 92($v0)
# save global pointer in context-data
sw $gp, 112($v0)
# compute address of returned transfer_t
addiu $t0, $v0, 116
sw $t0, 84($v0)
# compute abs address of label finish
la $t9, finish
# save address of finish as return-address for context-function
# will be entered after context-function returns
sw $t9, 88($v0)
jr $ra # return pointer to context-data
finish:
# reload our gp register (needed for la)
lw $gp, 16($sp)
# call _exit(0)
# the previous function should have left the 16 bytes incoming argument
# area on the stack which we reuse for calling _exit
la $t9, _exit
move $a0, $zero
jr $t9
.end make_fcontext
.size make_fcontext, .-make_fcontext
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/make_mips64_n64_elf_gas.S 0 → 100644
/*
Copyright Jiaxun Yang 2018.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 8 | 16 | 24 | *
* ------------------------------------------------- *
* | F24 | F25 | F26 | F27 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 40 | 48 | 56 | *
* ------------------------------------------------- *
* | F28 | F29 | F30 | F31 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 72 | 80 | 88 | *
* ------------------------------------------------- *
* | S0 | S1 | S2 | S3 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | S4 | S5 | S6 | S7 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | FP | GP | RA | PC | *
* ------------------------------------------------- *
* *
* *****************************************************/
.file "make_mips64_n64_elf_gas.S"
.text
.globl make_fcontext
.align 3
.type make_fcontext,@function
.ent make_fcontext
make_fcontext:
#ifdef __PIC__
.set noreorder
.cpload $t9
.set reorder
#endif
# shift address in A0 to lower 16 byte boundary
li $v1, 0xfffffffffffffff0
and $v0, $v1, $a0
# reserve space for context-data on context-stack
daddiu $v0, $v0, -160
# third arg of make_fcontext() == address of context-function
sd $a2, 152($v0)
# save global pointer in context-data
sd $gp, 136($v0)
# psudo instruction compute abs address of label finish based on GP
dla $t9, finish
# save address of finish as return-address for context-function
# will be entered after context-function returns
sd $t9, 144($v0)
jr $ra # return pointer to context-data
finish:
# reload our gp register (needed for la)
daddiu $t0, $sp, -160
ld $gp, 136($t0)
# call _exit(0)
# the previous function should have left the 16 bytes incoming argument
# area on the stack which we reuse for calling _exit
dla $t9, _exit
move $a0, $zero
jr $t9
.end make_fcontext
.size make_fcontext, .-make_fcontext
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/make_ppc32_ppc64_sysv_macho_gas.S 0 → 100644
/*
Copyright Sergue E. Leontiev 2013.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
// Stub file for universal binary
#if defined(__ppc__)
#include "make_ppc32_sysv_macho_gas.S"
#elif defined(__ppc64__)
#include "make_ppc64_sysv_macho_gas.S"
#else
#error "No arch's"
#endif
lib/context_switcher/asm/fcontext/make_ppc32_sysv_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* |bchai|hiddn| fpscr | PC | CR | R14 | R15 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | R24 | R25 | R26 | R27 | R28 | R29 | R30 | R31 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | F14 | F15 | F16 | F17 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | F18 | F19 | F20 | F21 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | *
* ------------------------------------------------- *
* | F22 | F23 | F24 | F25 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | *
* ------------------------------------------------- *
* | F26 | F27 | F28 | F29 | *
* ------------------------------------------------- *
* ------------------------|------------ *
* | 224 | 228 | 232 | 236 | 240 | 244 | *
* ------------------------|------------ *
* | F30 | F31 |bchai| LR | *
* ------------------------|------------ *
* *
*******************************************************/
.file "make_ppc32_sysv_elf_gas.S"
.text
.globl make_fcontext
.align 2
.type make_fcontext,@function
make_fcontext:
# save return address into R6
mflr %r6
# first arg of make_fcontext() == top address of context-function
# shift address in R3 to lower 16 byte boundary
clrrwi %r3, %r3, 4
# reserve space on context-stack, including 16 bytes of linkage
# and parameter area + 240 bytes of context-data (R1 % 16 == 0)
subi %r3, %r3, 16 + 240
# third arg of make_fcontext() == address of context-function
#ifdef __linux__
# save context-function as PC
stw %r5, 16(%r3)
#else
# save context-function for trampoline
stw %r5, 248(%r3)
#endif
# set back-chain to zero
li %r0, 0
stw %r0, 240(%r3)
# copy FPSCR to new context
mffs %f0
stfd %f0, 8(%r3)
#ifdef __linux__
# set hidden pointer for returning transfer_t
la %r0, 248(%r3)
stw %r0, 4(%r3)
#endif
# load address of label 1 into R4
bl 1f
1: mflr %r4
#ifndef __linux__
# compute abs address of trampoline, use as PC
addi %r7, %r4, trampoline - 1b
stw %r7, 16(%r3)
#endif
# compute abs address of label finish
addi %r4, %r4, finish - 1b
# save address of finish as return-address for context-function
# will be entered after context-function returns
stw %r4, 244(%r3)
# restore return address from R6
mtlr %r6
blr # return pointer to context-data
#ifndef __linux__
trampoline:
# On systems other than Linux, jump_fcontext is returning the
# transfer_t in R3:R4, but we need to pass transfer_t * R3 to
# our context-function.
lwz %r0, 8(%r1) # address of context-function
mtctr %r0
stw %r3, 8(%r1)
stw %r4, 12(%r1)
la %r3, 8(%r1) # address of transfer_t
bctr
#endif
finish:
# Use the secure PLT for _exit(0). If we use the insecure BSS PLT
# here, then the linker may use the insecure BSS PLT even if the
# C++ compiler wanted the secure PLT.
# set R30 for secure PLT, large model
bl 2f
2: mflr %r30
addis %r30, %r30, .Ltoc - 2b@ha
addi %r30, %r30, .Ltoc - 2b@l
# call _exit(0) with special addend 0x8000 for large model
li %r3, 0
bl _exit + 0x8000@plt
.size make_fcontext, .-make_fcontext
/* Provide the GOT pointer for secure PLT, large model. */
.section .got2,"aw"
.Ltoc = . + 0x8000
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
lib/context_switcher/asm/fcontext/make_ppc32_sysv_macho_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* | F14 | F15 | F16 | F17 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | F18 | F19 | F20 | F21 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | F22 | F23 | F24 | F25 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | F26 | F27 | F28 | F29 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | F30 | F31 | fpscr | R13 | R14 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | *
* ------------------------------------------------- *
* | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | *
* ------------------------------------------------- *
* | R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | *
* ------------------------------------------------- *
* | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | *
* ------------------------------------------------- *
* | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | *
* ------------------------------------------------- *
* | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 | *
* ------------------------------------------------- *
* | R31 |hiddn| CR | LR | PC |bchai|linkr| FCTX| *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 64 | | *
* ------------------------------------------------- *
* | 256 | | *
* ------------------------------------------------- *
* | DATA| | *
* ------------------------------------------------- *
* *
*******************************************************/
.text
.globl _make_fcontext
.align 2
_make_fcontext:
# save return address into R6
mflr r6
# first arg of make_fcontext() == top address of context-function
# shift address in R3 to lower 16 byte boundary
clrrwi r3, r3, 4
# reserve space for context-data on context-stack
# including 64 byte of linkage + parameter area (R1 16 == 0)
subi r3, r3, 336
# third arg of make_fcontext() == address of context-function
stw r5, 240(r3)
# set back-chain to zero
li r0, 0
stw r0, 244(r3)
mffs f0 # load FPSCR
stfd f0, 144(r3) # save FPSCR
# compute address of returned transfer_t
addi r0, r3, 252
mr r4, r0
stw r4, 228(r3)
# load LR
mflr r0
# jump to label 1
bl 1f
1:
# load LR into R4
mflr r4
# compute abs address of label finish
addi r4, r4, finish - 1b
# restore LR
mtlr r0
# save address of finish as return-address for context-function
# will be entered after context-function returns
stw r4, 236(r3)
# restore return address from R6
mtlr r6
blr # return pointer to context-data
finish:
# save return address into R0
mflr r0
# save return address on stack, set up stack frame
stw r0, 4(r1)
# allocate stack space, R1 16 == 0
stwu r1, -16(r1)
# exit code is zero
li r3, 0
# exit application
bl _exit@plt
lib/context_switcher/asm/fcontext/make_ppc32_sysv_xcoff_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* | F14 | F15 | F16 | F17 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | F18 | F19 | F20 | F21 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | F22 | F23 | F24 | F25 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | F26 | F27 | F28 | F29 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | F30 | F31 | fpscr | R13 | R14 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | *
* ------------------------------------------------- *
* | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | *
* ------------------------------------------------- *
* | R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | *
* ------------------------------------------------- *
* | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | *
* ------------------------------------------------- *
* | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | *
* ------------------------------------------------- *
* | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 | *
* ------------------------------------------------- *
* | R31 |hiddn| CR | LR | PC |bchai|linkr| FCTX| *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 64 | | *
* ------------------------------------------------- *
* | 256 | | *
* ------------------------------------------------- *
* | DATA| | *
* ------------------------------------------------- *
* *
*******************************************************/
.globl make_fcontext[DS]
.globl .make_fcontext[PR]
.align 2
.csect make_fcontext[DS]
make_fcontext:
.long .make_fcontext[PR]
.csect .make_fcontext[PR], 3
#.make_fcontext:
# save return address into R6
mflr 6
# first arg of make_fcontext() == top address of context-function
# shift address in R3 to lower 16 byte boundary
clrrwi 3, 3, 4
# reserve space for context-data on context-stack
# including 64 byte of linkage + parameter area (R1 % 16 == 0)
subi 3, 3, 336
# third arg of make_fcontext() == address of context-function
stw 5, 240(3)
# set back-chain to zero
li 0, 0
stw 0, 244(3)
# compute address of returned transfer_t
addi 0, 3, 252
mr 4, 0
stw 4, 228(3)
# load LR
mflr 0
# jump to label 1
bl .Label
.Label:
# load LR into R4
mflr 4
# compute abs address of label .L_finish
addi 4, 4, .L_finish - .Label
# restore LR
mtlr 0
# save address of finish as return-address for context-function
# will be entered after context-function returns
stw 4, 236(3)
# restore return address from R6
mtlr 6
blr # return pointer to context-data
.L_finish:
# save return address into R0
mflr 0
# save return address on stack, set up stack frame
stw 0, 4(1)
# allocate stack space, R1 % 16 == 0
stwu 1, -16(1)
# exit code is zero
li 3, 0
# exit application
bl ._exit
nop
lib/context_switcher/asm/fcontext/make_ppc64_sysv_elf_gas.S 0 → 100644
/*
Copyright Oliver Kowalke 2009.
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
*/
/*******************************************************
* *
* ------------------------------------------------- *
* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | *
* ------------------------------------------------- *
* | 0 | 4 | 8 | 12 | 16 | 20 | 24 | 28 | *
* ------------------------------------------------- *
* | TOC | R14 | R15 | R16 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | *
* ------------------------------------------------- *
* | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | *
* ------------------------------------------------- *
* | R17 | R18 | R19 | R20 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | *
* ------------------------------------------------- *
* | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | *
* ------------------------------------------------- *
* | R21 | R22 | R23 | R24 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | *
* ------------------------------------------------- *
* | 96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 | *
* ------------------------------------------------- *
* | R25 | R26 | R27 | R28 | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | *
* ------------------------------------------------- *
* | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 | *
* ------------------------------------------------- *
* | R29 | R30 | R31 | hidden | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | *
* ------------------------------------------------- *
* | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 | *
* ------------------------------------------------- *
* | CR | LR | PC | back-chain| *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | *
* ------------------------------------------------- *
* | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 | *
* ------------------------------------------------- *
* | cr saved | lr saved | compiler | linker | *
* ------------------------------------------------- *
* ------------------------------------------------- *
* | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | *
* ------------------------------------------------- *
* | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 | *
* ------------------------------------------------- *
* | TOC saved | FCTX | DATA | | *
* ------------------------------------------------- *
* *
*******************************************************/
.file "make_ppc64_sysv_elf_gas.S"
.globl make_fcontext
#if _CALL_ELF == 2
.text
.align 2
make_fcontext:
addis %r2, %r12, .TOC.-make_fcontext@ha
addi %r2, %r2, .TOC.-make_fcontext@l
.localentry make_fcontext, . - make_fcontext
#else
.section ".opd","aw"
.align 3
make_fcontext:
# ifdef _CALL_LINUX
.quad .L.make_fcontext,.TOC.@tocbase,0
.type make_fcontext,@function
.text
.align 2
.L.make_fcontext:
# else
.hidden .make_fcontext
.globl .make_fcontext
.quad .make_fcontext,.TOC.@tocbase,0
.size make_fcontext,24
.type .make_fcontext,@function
.text
.align 2
.make_fcontext:
# endif
#endif
# save return address into R6
mflr %r6
# first arg of make_fcontext() == top address of context-stack
# shift address in R3 to lower 16 byte boundary
clrrdi %r3, %r3, 4
# reserve space for context-data on context-stack
# including 64 byte of linkage + parameter area (R1 % 16 == 0)
subi %r3, %r3, 248
# third arg of make_fcontext() == address of context-function
# entry point (ELFv2) or descriptor (ELFv1)
#if _CALL_ELF == 2
# save address of context-function entry point
std %r5, 176(%r3)
#else
# save address of context-function entry point
ld %r4, 0(%r5)
std %r4, 176(%r3)
# save TOC of context-function
ld %r4, 8(%r5)
std %r4, 0(%r3)
#endif
# set back-chain to zero
li %r0, 0
std %r0, 184(%r3)
#if _CALL_ELF != 2
# zero in r3 indicates first jump to context-function
std %r0, 152(%r3)
#endif
# load LR
mflr %r0
# jump to label 1
bl 1f
1:
# load LR into R4
mflr %r4
# compute abs address of label finish
addi %r4, %r4, finish - 1b
# restore LR
mtlr %r0
# save address of finish as return-address for context-function
# will be entered after context-function returns
std %r4, 168(%r3)
# restore return address from R6
mtlr %r6
blr # return pointer to context-data
finish:
# save return address into R0
mflr %r0
# save return address on stack, set up stack frame
std %r0, 8(%r1)
# allocate stack space, R1 % 16 == 0
stdu %r1, -32(%r1)
# exit code is zero
li %r3, 0
# exit application
bl _exit
nop
#if _CALL_ELF == 2
.size make_fcontext, .-make_fcontext
#else
# ifdef _CALL_LINUX
.size .make_fcontext, .-.L.make_fcontext
# else
.size .make_fcontext, .-.make_fcontext
# endif
#endif
/* Mark that we don't need executable stack. */
.section .note.GNU-stack,"",%progbits
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