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| author | Shenghou Ma <minux.ma@gmail.com> | 2012-09-21 13:50:02 +0800 |
|---|---|---|
| committer | Shenghou Ma <minux.ma@gmail.com> | 2012-09-21 13:50:02 +0800 |
| commit | b151af1f36b0e2274bbf4b816a80c940126f6b32 (patch) | |
| tree | d3f3d8f69eff05c3d0d17a7eb53fc1315c5d624f /src/pkg/runtime/runtime.h | |
| parent | 85729503834e899324640023f2e969042ed647ff (diff) | |
| download | go-b151af1f36b0e2274bbf4b816a80c940126f6b32.tar.xz | |
runtime: fix mmap comments
We only pass lower 32 bits of file offset to asm routine.
R=r, dave, rsc
CC=golang-dev
https://golang.org/cl/6499118
Diffstat (limited to 'src/pkg/runtime/runtime.h')
| -rw-r--r-- | src/pkg/runtime/runtime.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/pkg/runtime/runtime.h b/src/pkg/runtime/runtime.h index 96da29a00c..37427fb92d 100644 --- a/src/pkg/runtime/runtime.h +++ b/src/pkg/runtime/runtime.h @@ -728,6 +728,9 @@ void runtime·parfordo(ParFor *desc); /* * low level C-called */ +// for mmap, we only pass the lower 32 bits of file offset to the +// assembly routine; the higher bits (if required), should be provided +// by the assembly routine as 0. uint8* runtime·mmap(byte*, uintptr, int32, int32, int32, uint32); void runtime·munmap(byte*, uintptr); void runtime·madvise(byte*, uintptr, int32); |