[compiler-rt] r182838 - [sanitizer] modf/modff/modfl interceptors.

[Evgeniy Stepanov]

Author: eugenis
Date: Wed May 29 05:03:11 2013
New Revision: 182838

URL: http://llvm.org/viewvc/llvm-project?rev=182838&view=rev
Log:
[sanitizer] modf/modff/modfl interceptors.

Modified:
    compiler-rt/trunk/lib/msan/tests/msan_test.cc
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h
    compiler-rt/trunk/lib/tsan/rtl/tsan_stat.cc
    compiler-rt/trunk/lib/tsan/rtl/tsan_stat.h

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=182838&r1=182837&r2=182838&view=diff
==============================================================================
--- compiler-rt/trunk/lib/msan/tests/msan_test.cc (original)
+++ compiler-rt/trunk/lib/msan/tests/msan_test.cc Wed May 29 05:03:11 2013
@@ -976,6 +976,24 @@ TEST(MemorySanitizer, strtold) {
   EXPECT_NOT_POISONED((S8) e);
 }
 
+TEST(MemorySanitizer, modf) {
+  double x, y;
+  x = modf(2.1, &y);
+  EXPECT_NOT_POISONED(y);
+}
+
+TEST(MemorySanitizer, modff) {
+  float x, y;
+  x = modff(2.1, &y);
+  EXPECT_NOT_POISONED(y);
+}
+
+TEST(MemorySanitizer, modfl) {
+  long double x, y;
+  x = modfl(2.1, &y);
+  EXPECT_NOT_POISONED(y);
+}
+
 TEST(MemorySanitizer, sprintf) {  // NOLINT
   char buff[10];
   break_optimization(buff);

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc?rev=182838&r1=182837&r2=182838&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_common_interceptors.inc Wed May 29 05:03:11 2013
@@ -1008,6 +1008,42 @@ INTERCEPTOR(int, accept4, int fd, void *
 #define INIT_ACCEPT4
 #endif
 
+#if SANITIZER_INTERCEPT_MODF
+INTERCEPTOR(double, modf, double x, double *iptr) {
+  void *ctx;
+  COMMON_INTERCEPTOR_ENTER(ctx, modf, x, iptr);
+  double res = REAL(modf)(x, iptr);
+  if (iptr) {
+    COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
+  }
+  return res;
+}
+INTERCEPTOR(float, modff, float x, float *iptr) {
+  void *ctx;
+  COMMON_INTERCEPTOR_ENTER(ctx, modff, x, iptr);
+  float res = REAL(modff)(x, iptr);
+  if (iptr) {
+    COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
+  }
+  return res;
+}
+INTERCEPTOR(long double, modfl, long double x, long double *iptr) {
+  void *ctx;
+  COMMON_INTERCEPTOR_ENTER(ctx, modfl, x, iptr);
+  long double res = REAL(modfl)(x, iptr);
+  if (iptr) {
+    COMMON_INTERCEPTOR_WRITE_RANGE(ctx, iptr, sizeof(*iptr));
+  }
+  return res;
+}
+#define INIT_MODF            \
+  INTERCEPT_FUNCTION(modf);  \
+  INTERCEPT_FUNCTION(modff); \
+  INTERCEPT_FUNCTION(modfl);
+#else
+#define INIT_MODF
+#endif
+
 #define SANITIZER_COMMON_INTERCEPTORS_INIT \
   INIT_STRCASECMP;                         \
   INIT_STRNCASECMP;                        \
@@ -1037,4 +1073,5 @@ INTERCEPTOR(int, accept4, int fd, void *
   INIT_GETHOSTBYNAME_R;                    \
   INIT_GETSOCKOPT;                         \
   INIT_ACCEPT;                             \
-  INIT_ACCEPT4;
+  INIT_ACCEPT4;                            \
+  INIT_MODF;

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h?rev=182838&r1=182837&r2=182838&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h Wed May 29 05:03:11 2013
@@ -77,5 +77,6 @@
 # define SANITIZER_INTERCEPT_GETSOCKOPT SI_NOT_WINDOWS
 # define SANITIZER_INTERCEPT_ACCEPT SI_NOT_WINDOWS
 # define SANITIZER_INTERCEPT_ACCEPT4 SI_LINUX
+# define SANITIZER_INTERCEPT_MODF SI_NOT_WINDOWS
 
 #endif  // #ifndef SANITIZER_PLATFORM_INTERCEPTORS_H

Modified: compiler-rt/trunk/lib/tsan/rtl/tsan_stat.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_stat.cc?rev=182838&r1=182837&r2=182838&view=diff
==============================================================================
--- compiler-rt/trunk/lib/tsan/rtl/tsan_stat.cc (original)
+++ compiler-rt/trunk/lib/tsan/rtl/tsan_stat.cc Wed May 29 05:03:11 2013
@@ -322,6 +322,9 @@ void StatOutput(u64 *stat) {
   name[StatInt_gethostbyname2_r]         = "  gethostbyname2_r                ";
   name[StatInt_gethostbyaddr_r]          = "  gethostbyaddr_r                 ";
   name[StatInt_getsockopt]               = "  getsockopt                      ";
+  name[StatInt_modf]                     = "  modf                            ";
+  name[StatInt_modff]                    = "  modff                           ";
+  name[StatInt_modfl]                    = "  modfl                           ";
 
   name[StatAnnotation]                   = "Dynamic annotations               ";
   name[StatAnnotateHappensBefore]        = "  HappensBefore                   ";

Modified: compiler-rt/trunk/lib/tsan/rtl/tsan_stat.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_stat.h?rev=182838&r1=182837&r2=182838&view=diff
==============================================================================
--- compiler-rt/trunk/lib/tsan/rtl/tsan_stat.h (original)
+++ compiler-rt/trunk/lib/tsan/rtl/tsan_stat.h Wed May 29 05:03:11 2013
@@ -317,6 +317,9 @@ enum StatType {
   StatInt_gethostbyname2_r,
   StatInt_gethostbyaddr_r,
   StatInt_getsockopt,
+  StatInt_modf,
+  StatInt_modff,
+  StatInt_modfl,
 
   // Dynamic annotations.
   StatAnnotation,