qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-23 23:50:08 -07:00
Code Releases Activity

runtime: fix nanotime for macOS Sierra, again.

Browse Source 
macOS Sierra beta4 changed the kernel interface for getting time.
DX now optionally points to an address for additional info.
Set it to zero to avoid corrupting memory.

Fixes #16570

Change-Id: I9f537e552682045325cdbb68b7d0b4ddafade14a
Reviewed-on: https://go-review.googlesource.com/25400
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Quentin Smith <quentin@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Brad Fitzpatrick 2016-08-01 21:54:40 -07:00
parent 6317c213c9
commit 2da5633eb9
2 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/runtime/sys_darwin_386.s
View File

@ -196,15 +196,16 @@ timeloop:
systime:
// Fall back to system call (usually first call in this thread)
LEAL 12(SP), AX // must be non-nil, unused
LEAL 16(SP), AX // must be non-nil, unused
MOVL AX, 4(SP)
MOVL $0, 8(SP) // time zone pointer
MOVL $0, 12(SP) // required as of Sierra; Issue 16570
MOVL $116, AX
INT $0x80
CMPL AX, $0
JNE inreg
MOVL 12(SP), AX
MOVL 16(SP), DX
MOVL 16(SP), AX
MOVL 20(SP), DX
inreg:
// sec is in AX, usec in DX
// convert to DX:AX nsec

1
src/runtime/sys_darwin_amd64.s
View File

@ -157,6 +157,7 @@ systime:
// Fall back to system call (usually first call in this thread).
MOVQ SP, DI
MOVQ $0, SI
MOVQ $0, DX // required as of Sierra; Issue 16570
MOVL $(0x2000000+116), AX
SYSCALL
CMPQ AX, $0