From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Mon, 13 Jul 2015 18:55:33 +0000 (+0000)
Subject: syscall: remove calls to Entersyscall & Exitsyscall in Getdents
X-Git-Tag: releases/gcc-4.9.4~703
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=37bf6227c280f7e944277af9cfba118f6c6c7d22;p=thirdparty%2Fgcc.git

syscall: remove calls to Entersyscall & Exitsyscall in Getdents

    The syscall for Getdents in syscall/libcall_linux.go
    called Entersyscall and Exitsyscall, causing the
    runtime_sched counts for goroutines to be incorrect.
    Inconsistent counts caused checkdead in runtime/proc.c
    to panic.

    Fixes golang/go#11406

    Reviewed-on: https://go-review.googlesource.com/11761

From-SVN: r225746
---

diff --git a/libgo/go/syscall/libcall_linux.go b/libgo/go/syscall/libcall_linux.go
index d5bedd06aac1..93137fc7fb72 100644
--- a/libgo/go/syscall/libcall_linux.go
+++ b/libgo/go/syscall/libcall_linux.go
@@ -223,7 +223,6 @@ func Getdents(fd int, buf []byte) (n int, err error) {
 	} else {
 		p = (*byte)(unsafe.Pointer(&_zero))
 	}
-	Entersyscall()
 	s := SYS_GETDENTS64
 	if s == 0 {
 		s = SYS_GETDENTS
@@ -233,7 +232,6 @@ func Getdents(fd int, buf []byte) (n int, err error) {
 	if n < 0 {
 		err = errno
 	}
-	Exitsyscall()
 	return
 }