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Make fixes and improvements

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- clock_nanosleep() is now much faster on OpenBSD and NetBSD
- Thread joining is now much faster on NetBSD
- FreeBSD timestamps are now more accurate
- Thread spawning now goes faster on XNU
- Clean up the clone() code
This commit is contained in:
Justine Tunney 2022-11-08 10:09:47 -08:00
parent aee50b1327
commit b407327972
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GPG key ID: BE714B4575D6E328
47 changed files with 645 additions and 306 deletions
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6
libc/runtime/clone-linux.S
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@ -28,7 +28,7 @@
// @param r8 is tls
// @param r9 is func(void*,int)→int
// @param 8(rsp) is arg
// @return tid of child on success, or -1 w/ errno
// @return tid of child on success, or -errno on error
sys_clone_linux:
push %rbp
mov %rsp,%rbp
@ -39,13 +39,9 @@ sys_clone_linux:
syscall
test %rax,%rax
jz 2f
cmp $-4095,%rax
jae 1f
0: pop %rbx
pop %rbp
ret
1: call systemfive_error
jmp 0b
2: xor %ebp,%ebp # child thread
mov %rbx,%rdi # arg
mov (%r10),%esi # tid