Echo stderr/stdout from clang subprocess to both the stderr of ccc-analyzer and
to an output file. This way users can both see the output of 'clang' as well as
enable background logging of files that clang encounters problems on.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56130 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/ccc-analyzer b/utils/ccc-analyzer
index 823c914..739e248 100755
--- a/utils/ccc-analyzer
+++ b/utils/ccc-analyzer
@@ -117,15 +117,24 @@
# Capture the STDOUT of clang and reroute it to ccc-analyzer's STDERR.
# We save the output file in the 'crashes' directory if clang encounters
# any problems with the file.
- my ($ofh, $ofile) = tempfile("clang_output_XXXXXX", DIR => $HtmlDir);
+ pipe (FROM_CHILD, TO_PARENT);
my $pid = fork();
if ($pid == 0) {
- open(STDOUT,">&", \*STDERR);
- open(STDERR,">&", $ofh);
+ close FROM_CHILD;
+ open(STDOUT,">&", \*TO_PARENT);
+ open(STDERR,">&", \*TO_PARENT);
exec $Cmd, @CmdArgs;
}
- close ($ofh);
- wait;
+
+ close TO_PARENT;
+ my ($ofh, $ofile) = tempfile("clang_output_XXXXXX", DIR => $HtmlDir);
+
+ while (<FROM_CHILD>) {
+ print $ofh $_;
+ print STDERR $_;
+ }
+
+ waitpid($pid,0);
my $Result = $?;
# Did the command die because of a signal?