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| author | Tobias Klauser <tklauser@distanz.ch> | 2021-10-11 09:32:52 +0200 |
|---|---|---|
| committer | Tobias Klauser <tobias.klauser@gmail.com> | 2021-10-12 06:55:50 +0000 |
| commit | d887d3be5f8f143f2475ddb2ea6c48ceb32def17 (patch) | |
| tree | 66f9d5dac3be8072b8fa75dd5e1fcdfda00059a6 /src/cmd/link | |
| parent | 6372e7efbab5a613b73271938acbd1c6f558814e (diff) | |
| download | go-d887d3be5f8f143f2475ddb2ea6c48ceb32def17.tar.gz go-d887d3be5f8f143f2475ddb2ea6c48ceb32def17.zip | |
cmd/link/internal/ld: use libc based fcntl for (*OutBuf).fallocate on darwin
Direct syscalls are no longer supported on darwin. Instead, use libc
fcntl go:linkname'd from the syscall package.
Change-Id: Ieeec64810452455faedd200f661a8b5839ca1fa0
Reviewed-on: https://go-review.googlesource.com/c/go/+/255260
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src/cmd/link')
| -rw-r--r-- | src/cmd/link/internal/ld/outbuf_darwin.go | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/cmd/link/internal/ld/outbuf_darwin.go b/src/cmd/link/internal/ld/outbuf_darwin.go index 9444b6567e..6920a0a843 100644 --- a/src/cmd/link/internal/ld/outbuf_darwin.go +++ b/src/cmd/link/internal/ld/outbuf_darwin.go @@ -9,6 +9,10 @@ import ( "unsafe" ) +// Implemented in the syscall package. +//go:linkname fcntl syscall.fcntl +func fcntl(fd int, cmd int, arg int) (int, error) + func (out *OutBuf) fallocate(size uint64) error { stat, err := out.f.Stat() if err != nil { @@ -29,12 +33,8 @@ func (out *OutBuf) fallocate(size uint64) error { Length: int64(size - cursize), } - _, _, errno := syscall.Syscall(syscall.SYS_FCNTL, uintptr(out.f.Fd()), syscall.F_PREALLOCATE, uintptr(unsafe.Pointer(store))) - if errno != 0 { - return errno - } - - return nil + _, err = fcntl(int(out.f.Fd()), syscall.F_PREALLOCATE, int(uintptr(unsafe.Pointer(store)))) + return err } func (out *OutBuf) purgeSignatureCache() { |