[compiler-rt] r179022 - [msan] Interceptors for pipe2 and socketpair.
Evgeniy Stepanov
eugeni.stepanov at gmail.com
Mon Apr 8 06:45:12 PDT 2013
Author: eugenis
Date: Mon Apr 8 08:45:12 2013
New Revision: 179022
URL: http://llvm.org/viewvc/llvm-project?rev=179022&view=rev
Log:
[msan] Interceptors for pipe2 and socketpair.
Modified:
compiler-rt/trunk/lib/msan/msan_interceptors.cc
compiler-rt/trunk/lib/msan/tests/msan_test.cc
Modified: compiler-rt/trunk/lib/msan/msan_interceptors.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/msan/msan_interceptors.cc?rev=179022&r1=179021&r2=179022&view=diff
==============================================================================
--- compiler-rt/trunk/lib/msan/msan_interceptors.cc (original)
+++ compiler-rt/trunk/lib/msan/msan_interceptors.cc Mon Apr 8 08:45:12 2013
@@ -540,6 +540,22 @@ INTERCEPTOR(int, pipe, int pipefd[2]) {
return res;
}
+INTERCEPTOR(int, pipe2, int pipefd[2], int flags) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(pipe2)(pipefd, flags);
+ if (!res)
+ __msan_unpoison(pipefd, sizeof(int[2]));
+ return res;
+}
+
+INTERCEPTOR(int, socketpair, int domain, int type, int protocol, int sv[2]) {
+ ENSURE_MSAN_INITED();
+ int res = REAL(socketpair)(domain, type, protocol, sv);
+ if (!res)
+ __msan_unpoison(sv, sizeof(int[2]));
+ return res;
+}
+
INTERCEPTOR(int, wait, int *status) {
ENSURE_MSAN_INITED();
int res = REAL(wait)(status);
@@ -1109,6 +1125,8 @@ void InitializeInterceptors() {
INTERCEPT_FUNCTION(__xstat64);
INTERCEPT_FUNCTION(__lxstat64);
INTERCEPT_FUNCTION(pipe);
+ INTERCEPT_FUNCTION(pipe2);
+ INTERCEPT_FUNCTION(socketpair);
INTERCEPT_FUNCTION(wait);
INTERCEPT_FUNCTION(waitpid);
INTERCEPT_FUNCTION(fgets);
Modified: compiler-rt/trunk/lib/msan/tests/msan_test.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/msan/tests/msan_test.cc?rev=179022&r1=179021&r2=179022&view=diff
==============================================================================
--- compiler-rt/trunk/lib/msan/tests/msan_test.cc (original)
+++ compiler-rt/trunk/lib/msan/tests/msan_test.cc Mon Apr 8 08:45:12 2013
@@ -41,6 +41,7 @@
#include <sys/types.h>
#include <dirent.h>
#include <pwd.h>
+#include <sys/socket.h>
#if defined(__i386__) || defined(__x86_64__)
# include <emmintrin.h>
@@ -605,6 +606,26 @@ TEST(MemorySanitizer, pipe) {
close(pipefd[1]);
}
+TEST(MemorySanitizer, pipe2) {
+ int* pipefd = new int[2];
+ int res = pipe2(pipefd, O_NONBLOCK);
+ assert(!res);
+ EXPECT_NOT_POISONED(pipefd[0]);
+ EXPECT_NOT_POISONED(pipefd[1]);
+ close(pipefd[0]);
+ close(pipefd[1]);
+}
+
+TEST(MemorySanitizer, socketpair) {
+ int sv[2];
+ int res = socketpair(AF_UNIX, SOCK_STREAM, 0, sv);
+ assert(!res);
+ EXPECT_NOT_POISONED(sv[0]);
+ EXPECT_NOT_POISONED(sv[1]);
+ close(sv[0]);
+ close(sv[1]);
+}
+
TEST(MemorySanitizer, getcwd) {
char path[PATH_MAX + 1];
char* res = getcwd(path, sizeof(path));
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