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Introduce FreeBSD ARM64 support

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This commit is contained in:
Justine Tunney 2023-12-29 20:11:23 -08:00
parent 43fe5956ad
commit 83107f78ed
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GPG key ID: BE714B4575D6E328
455 changed files with 778 additions and 551 deletions
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25
libc/intrin/sys_gettid.greg.c
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@ -18,6 +18,7 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/kprintf.h"
#include "libc/nt/thread.h"
#include "libc/nt/thunk/msabi.h"
#include "libc/runtime/internal.h"
@ -25,9 +26,9 @@
__msabi extern typeof(GetCurrentThreadId) *const __imp_GetCurrentThreadId;
int sys_gettid(void) {
int64_t wut;
#ifdef __x86_64__
int tid;
int64_t wut;
if (IsWindows()) {
tid = __imp_GetCurrentThreadId();
} else if (IsLinux()) {
@ -65,11 +66,23 @@ int sys_gettid(void) {
#elif defined(__aarch64__)
// this can't be used on xnu
register long res asm("x0");
asm volatile("mov\tx8,%1\n\t"
"svc\t0"
: "=r"(res)
: "i"(178)
: "x8", "memory");
if (IsLinux()) {
asm volatile("mov\tx8,%1\n\t"
"svc\t0"
: "=r"(res)
: "i"(178)
: "x8", "memory");
} else if (IsFreebsd()) {
res = (long)&wut;
asm volatile("mov\tx8,%2\n\t"
"svc\t0"
: "+r"(res), "=m"(wut)
: "i"(432) // thr_self()
: "x8", "memory");
res = wut;
} else {
res = __pid;
}
return res;
#else
#error "arch unsupported"