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unix: support Readv, Preadv, Writev and Pwritev for darwin

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Darwin, starting with Big Sur, supports vectorized IO.

Fixes golang/go#64710

Change-Id: Ic3a3c51009eab24f70665d8d3a145b328a7713c6
Reviewed-on: https://go-review.googlesource.com/c/sys/+/548795
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
Manuel Schönlaub
2025-03-20 08:06:05 -07:00
committed by Gopher Robot
parent 7401cce313
commit 3330b5e756
7 changed files with 363 additions and 1 deletions
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unix/zsyscall_darwin_amd64.s
+20
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@@ -738,6 +738,26 @@ TEXT libc_munmap_trampoline<>(SB),NOSPLIT,$0-0
GLOBL ·libc_munmap_trampoline_addr(SB), RODATA, $8
DATA ·libc_munmap_trampoline_addr(SB)/8, $libc_munmap_trampoline<>(SB)
TEXT libc_readv_trampoline<>(SB),NOSPLIT,$0-0
JMP libc_readv(SB)
GLOBL ·libc_readv_trampoline_addr(SB), RODATA, $8
DATA ·libc_readv_trampoline_addr(SB)/8, $libc_readv_trampoline<>(SB)
TEXT libc_preadv_trampoline<>(SB),NOSPLIT,$0-0
JMP libc_preadv(SB)
GLOBL ·libc_preadv_trampoline_addr(SB), RODATA, $8
DATA ·libc_preadv_trampoline_addr(SB)/8, $libc_preadv_trampoline<>(SB)
TEXT libc_writev_trampoline<>(SB),NOSPLIT,$0-0
JMP libc_writev(SB)
GLOBL ·libc_writev_trampoline_addr(SB), RODATA, $8
DATA ·libc_writev_trampoline_addr(SB)/8, $libc_writev_trampoline<>(SB)
TEXT libc_pwritev_trampoline<>(SB),NOSPLIT,$0-0
JMP libc_pwritev(SB)
GLOBL ·libc_pwritev_trampoline_addr(SB), RODATA, $8
DATA ·libc_pwritev_trampoline_addr(SB)/8, $libc_pwritev_trampoline<>(SB)
TEXT libc_fstat64_trampoline<>(SB),NOSPLIT,$0-0
JMP libc_fstat64(SB)
GLOBL ·libc_fstat64_trampoline_addr(SB), RODATA, $8