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Make ubsan respect log_path 

As with the other sanitizers, it is desirable to allow ubsan's output to be
redirected to somewhere other than stderr (and into per-process log files).

llvm-svn: 235277
This commit is contained in:
Hal Finkel 2015-04-19 20:16:13 +00:00
parent 4ecdd2cff3
commit 0423483bab
2 changed files with 34 additions and 0 deletions
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1
compiler-rt/lib/ubsan/ubsan_init.cc
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@ -37,6 +37,7 @@ static void CommonInit() {
static void CommonStandaloneInit() {
SanitizerToolName = "UndefinedBehaviorSanitizer";
InitializeFlags();
__sanitizer_set_report_path(common_flags()->log_path);
InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
CommonInit();
ubsan_mode = UBSAN_MODE_STANDALONE;

33
compiler-rt/test/ubsan/TestCases/Misc/log-path_test.cc Normal file
View File

@ -0,0 +1,33 @@
// FIXME: https://code.google.com/p/address-sanitizer/issues/detail?id=316
// XFAIL: android
// RUN: %clangxx -fsanitize=undefined %s -O1 -o %t
// Regular run.
// RUN: %run %t -4 2> %t.out
// RUN: FileCheck %s --check-prefix=CHECK-ERROR < %t.out
// Good log_path.
// RUN: rm -f %t.log.*
// RUN: env UBSAN_OPTIONS=log_path=%t.log %run %t -4 2> %t.out
// RUN: FileCheck %s --check-prefix=CHECK-ERROR < %t.log.*
// Run w/o errors should not produce any log.
// RUN: rm -f %t.log.*
// RUN: env UBSAN_OPTIONS=log_path=%t.log %run %t 4
// RUN: not cat %t.log.*
// FIXME: log_path is not supported on Windows yet.
// XFAIL: win32
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[]) {
double a = atof(argv[1]);
unsigned int ai = (unsigned int) a;
printf("%f %u\n", a, ai);
return 0;
}
// CHECK-ERROR: runtime error: value -4 is outside the range of representable values of type 'unsigned int'