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Introduce FreeBSD ARM64 support

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It's 100% passing test fleet. Solid as a rock.
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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12
libc/sysv/sysv.c
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@ -33,6 +33,7 @@ register long x3 asm("x3");
register long x4 asm("x4");
register long x5 asm("x5");
register long sysv_ordinal asm("x8");
register long freebsd_ordinal asm("x9");
register long xnu_ordinal asm("x16");
register long cosmo_tls_register asm("x28");
@ -68,7 +69,7 @@ dontinline long systemfive_cancellable(void) {
// invoke cancellable system call
// this works for both linux and bsd
asm volatile("mov\tx9,0\n\t" // clear carry flag
asm volatile("mov\tx9,0\n\t" // clear carry flag (for linux)
"adds\tx9,x9,0\n\t" // clear carry flag
"svc\t0\n"
"systemfive_cancellable_end:\n\t"
@ -114,7 +115,10 @@ dontinline long systemfive_cancellable(void) {
long systemfive(void) {
// handle special cases
if (IsLinux()) {
if (IsLinux() || IsFreebsd()) {
if (IsFreebsd()) {
sysv_ordinal = freebsd_ordinal;
}
if (sysv_ordinal == 0xfff) {
return _sysret(-ENOSYS);
}
@ -135,9 +139,7 @@ long systemfive(void) {
// invoke non-blocking system call
// this works for both linux and bsd
asm volatile("mov\tx9,0\n\t" // clear carry flag
"adds\tx9,x9,0\n\t" // clear carry flag
"svc\t0\n\t"
asm volatile("svc\t0\n\t"
"bcs\t1f\n\t"
"b\t2f\n1:\t"
"neg\tx0,x0\n2:"