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(Libretro SDK) Libco - style nits

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This commit is contained in:
twinaphex 2014-10-23 08:19:36 +02:00
parent 9354fd05b1
commit 60901771ea
5 changed files with 29 additions and 20 deletions
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3
libretro-sdk/include/libco.h
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@ -22,8 +22,11 @@ extern "C" {
typedef void* cothread_t;
cothread_t co_active(void);
cothread_t co_create(unsigned int, void (*)(void));
void co_delete(cothread_t);
void co_switch(cothread_t);
#ifdef __cplusplus

3
libretro-sdk/libco/amd64.c
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@ -40,7 +40,8 @@ static unsigned char co_swap_function[] = {
void co_init(void)
{
DWORD old_privileges;
VirtualProtect(co_swap_function, sizeof(co_swap_function), PAGE_EXECUTE_READWRITE, &old_privileges);
VirtualProtect(co_swap_function,
sizeof(co_swap_function), PAGE_EXECUTE_READWRITE, &old_privileges);
}
#else
//ABI: SystemV

27
libretro-sdk/libco/armeabi.c
View File

@ -29,12 +29,13 @@ asm (
" ldmia r0!, {r4, r5, r6, r7, r8, r9, r10, r11, sp, pc}\n"
);
// ASM
/* ASM */
void co_switch_arm(cothread_t handle, cothread_t current);
static void crash(void)
{
assert(0); // Called only if cothread_t entrypoint returns.
/* Called only if cothread_t entrypoint returns. */
assert(0);
}
cothread_t co_create(unsigned int size, void (*entrypoint)(void))
@ -52,17 +53,17 @@ cothread_t co_create(unsigned int size, void (*entrypoint)(void))
return handle;
uint32_t *ptr = (uint32_t*)handle;
// Non-volatiles
ptr[0] = 0; // r4
ptr[1] = 0; // r5
ptr[2] = 0; // r6
ptr[3] = 0; // r7
ptr[4] = 0; // r8
ptr[5] = 0; // r9
ptr[6] = 0; // r10
ptr[7] = 0; // r11
ptr[8] = (uintptr_t)ptr + size + 256 - 4; // r13, stack pointer
ptr[9] = (uintptr_t)entrypoint; // r15, PC (link register r14 gets saved here).
/* Non-volatiles. */
ptr[0] = 0; /* r4 */
ptr[1] = 0; /* r5 */
ptr[2] = 0; /* r6 */
ptr[3] = 0; /* r7 */
ptr[4] = 0; /* r8 */
ptr[5] = 0; /* r9 */
ptr[6] = 0; /* r10 */
ptr[7] = 0; /* r11 */
ptr[8] = (uintptr_t)ptr + size + 256 - 4; /* r13, stack pointer */
ptr[9] = (uintptr_t)entrypoint; /* r15, PC (link register r14 gets saved here). */
return handle;
}

13
libretro-sdk/libco/sjlj.c
View File

@ -64,22 +64,25 @@ cothread_t co_create(unsigned int size, void (*coentry)(void))
stack.ss_flags = 0;
stack.ss_size = size;
thread->stack = stack.ss_sp = malloc(size);
if(stack.ss_sp && !sigaltstack(&stack, &old_stack)) {
if(stack.ss_sp && !sigaltstack(&stack, &old_stack))
{
handler.sa_handler = springboard;
handler.sa_flags = SA_ONSTACK;
sigemptyset(&handler.sa_mask);
creating = thread;
if(!sigaction(SIGUSR1, &handler, &old_handler)) {
if(!raise(SIGUSR1)) {
if(!sigaction(SIGUSR1, &handler, &old_handler))
{
if(!raise(SIGUSR1))
thread->coentry = coentry;
}
sigaltstack(&old_stack, 0);
sigaction(SIGUSR1, &old_handler, 0);
}
}
if(thread->coentry != coentry) {
if(thread->coentry != coentry)
{
co_delete(thread);
thread = 0;
}

3
libretro-sdk/libco/x86.c
View File

@ -37,7 +37,8 @@ static unsigned char co_swap_function[] = {
void co_init(void)
{
DWORD old_privileges;
VirtualProtect(co_swap_function, sizeof co_swap_function, PAGE_EXECUTE_READWRITE, &old_privileges);
VirtualProtect(co_swap_function,
sizeof co_swap_function, PAGE_EXECUTE_READWRITE, &old_privileges);
}
#else
#include <unistd.h>