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syscall: Reimplement linux syscalls in terms of their *at replacements.

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Updates #9974

This proposal tackles the body of syscalls which have been replaced,
and are now deprecated in linux. This is needed for the arm64 port as
arm64 is the first linux architecture to remove the "legacy" forms of
these syscalls.

The *AT variants were added in kernel 2.6.16, so well before our 2.6.23
cutoff (hey, it'll even work on RHEL5).

Discussion: https://groups.google.com/forum/#!topic/golang-dev/zpeFtN2z5Fc

Change-Id: I473a7c9a295d6f776fcdc75dcce06cbe9e3564ee
Reviewed-on: https://go-review.googlesource.com/5837
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Dave Cheney 2015-02-25 14:52:17 +11:00
parent a3c59779ff
commit e7a7352e52
10 changed files with 410 additions and 1208 deletions
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1
src/syscall/syscall_linux_386.go
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@ -56,7 +56,6 @@ func Pipe2(p []int, flags int) (err error) {
// 64-bit file system and 32-bit uid calls
// (386 default is 32-bit file system and 16-bit uid).
//sys Chown(path string, uid int, gid int) (err error) = SYS_CHOWN32
//sysnb Dup2(oldfd int, newfd int) (err error)
//sys Fchown(fd int, uid int, gid int) (err error) = SYS_FCHOWN32
//sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64