Pecus/libretro-atari800
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update libco

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Not6
2017-10-15 20:21:24 +02:00
parent e11b43cbed
commit fc862fbfcc
9 changed files with 476 additions and 69 deletions
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libretro/libco/amd64.c
+35 -28
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@@ -5,7 +5,7 @@
*/
#define LIBCO_C
#include "libco.h"
#include <libco.h>
#include <assert.h>
#include <stdlib.h>
@@ -21,12 +21,10 @@ static thread_local long long co_active_buffer[64];
static thread_local cothread_t co_active_handle = 0;
#ifndef CO_USE_INLINE_ASM
static void (*co_swap)(cothread_t, cothread_t) = 0;
#else
void co_swap(cothread_t, cothread_t);
#endif
#ifdef _WIN32
//ABI: Win64
/* ABI: Win64 */
static unsigned char co_swap_function[] = {
0x48, 0x89, 0x22, /* mov [rdx],rsp */
0x48, 0x8b, 0x21, /* mov rsp,[rcx] */
@@ -83,7 +81,7 @@ void co_init(void)
sizeof(co_swap_function), PAGE_EXECUTE_READWRITE, &old_privileges);
}
#else
//ABI: SystemV
/* ABI: SystemV */
#ifndef CO_USE_INLINE_ASM
static unsigned char co_swap_function[] = {
0x48, 0x89, 0x26, /* mov [rsi],rsp */
@@ -115,29 +113,7 @@ void co_init(void)
mprotect((void*)base, size, PROT_READ | PROT_WRITE | PROT_EXEC);
}
#else
__asm__(
".intel_syntax noprefix\n"
".globl co_swap \n"
"co_swap: \n"
".globl _co_swap \n" /* OSX ABI is different from Linux. */
"_co_swap: \n"
"mov [rsi],rsp \n"
"mov [rsi+0x08],rbp \n"
"mov [rsi+0x10],rbx \n"
"mov [rsi+0x18],r12 \n"
"mov [rsi+0x20],r13 \n"
"mov [rsi+0x28],r14 \n"
"mov [rsi+0x30],r15 \n"
"mov rsp,[rdi] \n"
"mov rbp,[rdi+0x08] \n"
"mov rbx,[rdi+0x10] \n"
"mov r12,[rdi+0x18] \n"
"mov r13,[rdi+0x20] \n"
"mov r14,[rdi+0x28] \n"
"mov r15,[rdi+0x30] \n"
"ret \n"
".att_syntax \n"
);
void co_init(void) {}
#endif
#endif
@@ -186,11 +162,42 @@ void co_delete(cothread_t handle)
free(handle);
}
#ifndef CO_USE_INLINE_ASM
void co_switch(cothread_t handle)
{
register cothread_t co_previous_handle = co_active_handle;
co_swap(co_active_handle = handle, co_previous_handle);
}
#else
#ifdef __APPLE__
#define ASM_PREFIX "_"
#else
#define ASM_PREFIX ""
#endif
__asm__(
".intel_syntax noprefix \n"
".globl " ASM_PREFIX "co_switch \n"
ASM_PREFIX "co_switch: \n"
"mov rsi, [rip+" ASM_PREFIX "co_active_handle]\n"
"mov [rsi],rsp \n"
"mov [rsi+0x08],rbp \n"
"mov [rsi+0x10],rbx \n"
"mov [rsi+0x18],r12 \n"
"mov [rsi+0x20],r13 \n"
"mov [rsi+0x28],r14 \n"
"mov [rsi+0x30],r15 \n"
"mov [rip+" ASM_PREFIX "co_active_handle], rdi\n"
"mov rsp,[rdi] \n"
"mov rbp,[rdi+0x08] \n"
"mov rbx,[rdi+0x10] \n"
"mov r12,[rdi+0x18] \n"
"mov r13,[rdi+0x20] \n"
"mov r14,[rdi+0x28] \n"
"mov r15,[rdi+0x30] \n"
"ret \n"
".att_syntax \n"
);
#endif
#ifdef __cplusplus
}