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ld: Fixes issue 1899 ("cannot create 8.out.exe")

Browse Source 
http://code.google.com/p/go/issues/detail?id=1899

R=rsc, alex.brainman, bsiegert, hectorchu, bradfitz
CC=golang-dev
https://golang.org/cl/4978047
This commit is contained in:
Jaroslavas Počepko 2011-10-14 20:37:07 +01:00 committed by Hector Chu
parent b3812bf6db
commit ff866c4ca3
2 changed files with 13 additions and 3 deletions
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11
doc/progs/run
View File

@ -42,9 +42,13 @@ for i in \
$GC $i
done
# Write to temporary file to avoid mingw bash bug.
TMPFILE="/tmp/gotest3"
function testit {
$LD $1.$O
x=$(echo $(./$O.out $2 2>&1)) # extra echo canonicalizes
./$O.out $2 2>&1 >"$TMPFILE" || true
x=$(echo $(cat "$TMPFILE")) # extra echo canonicalizes
if [ "$x" != "$3" ]
then
echo $1 failed: '"'$x'"' is not '"'$3'"'
@ -53,7 +57,8 @@ function testit {
function testitpipe {
$LD $1.$O
x=$(echo $(./$O.out | $2 2>&1)) # extra echo canonicalizes
./$O.out | $2 2>&1 >"$TMPFILE" || true
x=$(echo $(cat "$TMPFILE")) # extra echo canonicalizes
if [ "$x" != "$3" ]
then
echo $1 failed: '"'$x'"' is not '"'$3'"'
@ -88,4 +93,4 @@ testit server1 "" ""
testit eff_bytesize "" "1.00YB 9.09TB"
testit eff_sequence "" "[-1 2 6 16 44]"
rm -f $O.out *.$O
rm -f $O.out $O.out.exe *.$O "$TMPFILE"

5
src/cmd/ld/lib.c
View File

@ -70,7 +70,12 @@ libinit(void)
// add goroot to the end of the libdir list.
libdir[nlibdir++] = smprint("%s/pkg/%s_%s", goroot, goos, goarch);
// Unix doesn't like it when we write to a running (or, sometimes,
// recently run) binary, so remove the output file before writing it.
// On Windows 7, remove() can force the following create() to fail.
#ifndef _WIN32
remove(outfile);
#endif
cout = create(outfile, 1, 0775);
if(cout < 0) {
diag("cannot create %s", outfile);