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Get threads working well on MacOS Arm64

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- Now using 10x better GCD semaphores
- We now generate Linux-like thread ids
- We now use fast system clock / sleep libraries
- The APE M1 loader now generates Linux-like stacks
This commit is contained in:
Justine Tunney 2023-06-04 01:57:10 -07:00
parent b5eab2b0b7
commit bcf9af94bf
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GPG key ID: BE714B4575D6E328
2037 changed files with 4664 additions and 4451 deletions
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43
libc/runtime/fork-sysv.c
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@ -39,28 +39,29 @@ int sys_fork(void) {
#elif defined(__aarch64__)
int flags = 17; // SIGCHLD
void *child_stack = 0;
void *parent_tidptr = 0;
void *newtls = 0;
void *child_tidptr = 0;
register long r0 asm("x0") = (long)flags;
register long r1 asm("x1") = (long)child_stack;
register long r2 asm("x2") = (long)parent_tidptr;
register long r3 asm("x3") = (long)newtls;
register long r4 asm("x4") = (long)child_tidptr;
register int res_x0 asm("x0");
register int res_x1 asm("x1");
asm volatile("mov\tx8,%2\n\t"
"mov\tx16,%3\n\t"
"svc\t0"
: "=r"(res_x0), "=r"(res_x1)
: "i"(220), "i"(2), "r"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4)
: "x8", "x16", "memory");
if (IsXnu() && res_x0 != -1) {
res_x0 &= res_x1 - 1;
if (IsLinux()) {
int flags = 17; // SIGCHLD
void *child_stack = 0;
void *parent_tidptr = 0;
void *newtls = 0;
void *child_tidptr = 0;
register long r0 asm("x0") = (long)flags;
register long r1 asm("x1") = (long)child_stack;
register long r2 asm("x2") = (long)parent_tidptr;
register long r3 asm("x3") = (long)newtls;
register long r4 asm("x4") = (long)child_tidptr;
register int res_x0 asm("x0");
asm volatile("mov\tx8,%1\n\t"
"svc\t0"
: "=r"(res_x0)
: "i"(220), "r"(r0), "r"(r1), "r"(r2), "r"(r3), "r"(r4)
: "x8", "x16", "memory");
return _sysret(res_x0);
} else if (__syslib) {
return _sysret(__syslib->fork());
} else {
return enosys();
}
return _sysret(res_x0);
#else