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authorEvgeniy Stepanov <eugeni.stepanov@gmail.com>2013-10-29 22:25:27 +0000
committerEvgeniy Stepanov <eugeni.stepanov@gmail.com>2013-10-29 22:25:27 +0000
commit78d77c2638b8e02020737c9b296ce2198e4c58e6 (patch)
tree838809df8134c0d5e9b1989a4877fa4c0dcab94c
parenta0475713cdac8a55ed2a62cf9553ae6fbb2dbbc2 (diff)
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[sanitizer] Intercept drand48_r, lrand48_r.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@193655 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/msan/tests/msan_test.cc16
-rw-r--r--lib/sanitizer_common/sanitizer_common_interceptors.inc22
-rw-r--r--lib/sanitizer_common/sanitizer_platform_interceptors.h1
-rw-r--r--lib/tsan/rtl/tsan_stat.cc2
-rw-r--r--lib/tsan/rtl/tsan_stat.h2
5 files changed, 43 insertions, 0 deletions
diff --git a/lib/msan/tests/msan_test.cc b/lib/msan/tests/msan_test.cc
index 613367f8..2269bb23 100644
--- a/lib/msan/tests/msan_test.cc
+++ b/lib/msan/tests/msan_test.cc
@@ -1587,6 +1587,22 @@ TEST(MemorySanitizer, lgammal_r) {
EXPECT_NOT_POISONED(sgn);
}
+TEST(MemorySanitizer, drand48_r) {
+ struct drand48_data buf;
+ srand48_r(0, &buf);
+ double d;
+ drand48_r(&buf, &d);
+ EXPECT_NOT_POISONED(d);
+}
+
+TEST(MemorySanitizer, lrand48_r) {
+ struct drand48_data buf;
+ srand48_r(0, &buf);
+ long d;
+ lrand48_r(&buf, &d);
+ EXPECT_NOT_POISONED(d);
+}
+
TEST(MemorySanitizer, sprintf) { // NOLINT
char buff[10];
break_optimization(buff);
diff --git a/lib/sanitizer_common/sanitizer_common_interceptors.inc b/lib/sanitizer_common/sanitizer_common_interceptors.inc
index 1968e4c3..7c8669a2 100644
--- a/lib/sanitizer_common/sanitizer_common_interceptors.inc
+++ b/lib/sanitizer_common/sanitizer_common_interceptors.inc
@@ -2789,6 +2789,27 @@ INTERCEPTOR(long double, lgammal_r, long double x, int *signp) {
#define INIT_LGAMMA_R
#endif
+#if SANITIZER_INTERCEPT_DRAND48_R
+INTERCEPTOR(int, drand48_r, void *buffer, double *result) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, drand48_r, buffer, result);
+ int res = REAL(drand48_r)(buffer, result);
+ if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ return res;
+}
+INTERCEPTOR(int, lrand48_r, void *buffer, long *result) {
+ void *ctx;
+ COMMON_INTERCEPTOR_ENTER(ctx, lrand48_r, buffer, result);
+ int res = REAL(lrand48_r)(buffer, result);
+ if (result) COMMON_INTERCEPTOR_WRITE_RANGE(ctx, result, sizeof(*result));
+ return res;
+}
+#define INIT_DRAND48_R \
+ INTERCEPT_FUNCTION(drand48_r); \
+ INTERCEPT_FUNCTION(lrand48_r);
+#else
+#define INIT_DRAND48_R
+#endif
#define SANITIZER_COMMON_INTERCEPTORS_INIT \
INIT_STRCMP; \
@@ -2896,4 +2917,5 @@ INTERCEPTOR(long double, lgammal_r, long double x, int *signp) {
INIT_REMQUO; \
INIT_LGAMMA; \
INIT_LGAMMA_R; \
+ INIT_DRAND48_R; \
/**/
diff --git a/lib/sanitizer_common/sanitizer_platform_interceptors.h b/lib/sanitizer_common/sanitizer_platform_interceptors.h
index 92219f7b..d73107a9 100644
--- a/lib/sanitizer_common/sanitizer_platform_interceptors.h
+++ b/lib/sanitizer_common/sanitizer_platform_interceptors.h
@@ -148,6 +148,7 @@
# define SANITIZER_INTERCEPT_REMQUO SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_LGAMMA SI_NOT_WINDOWS
# define SANITIZER_INTERCEPT_LGAMMA_R SI_LINUX
+# define SANITIZER_INTERCEPT_DRAND48_R SI_LINUX_NOT_ANDROID
# define SANITIZER_INTERCEPT__EXIT SI_LINUX
diff --git a/lib/tsan/rtl/tsan_stat.cc b/lib/tsan/rtl/tsan_stat.cc
index 0d0607be..6082120f 100644
--- a/lib/tsan/rtl/tsan_stat.cc
+++ b/lib/tsan/rtl/tsan_stat.cc
@@ -410,6 +410,8 @@ void StatOutput(u64 *stat) {
name[StatInt_lgamma_r] = " lgamma_r ";
name[StatInt_lgammaf_r] = " lgammaf_r ";
name[StatInt_lgammal_r] = " lgammal_r ";
+ name[StatInt_drand48_r] = " drand48_r ";
+ name[StatInt_lrand48_r] = " lrand48_r ";
name[StatInt_pthread_attr_getdetachstate] = " pthread_addr_getdetachstate "; // NOLINT
name[StatInt_pthread_attr_getguardsize] = " pthread_addr_getguardsize "; // NOLINT
diff --git a/lib/tsan/rtl/tsan_stat.h b/lib/tsan/rtl/tsan_stat.h
index 6c1927e8..4d0ec3fc 100644
--- a/lib/tsan/rtl/tsan_stat.h
+++ b/lib/tsan/rtl/tsan_stat.h
@@ -405,6 +405,8 @@ enum StatType {
StatInt_lgamma_r,
StatInt_lgammaf_r,
StatInt_lgammal_r,
+ StatInt_drand48_r,
+ StatInt_lrand48_r,
StatInt_pthread_attr_getdetachstate,
StatInt_pthread_attr_getguardsize,