Vendor import of compiler-rt release_40 branch r294123:vendor/compiler-rt/compiler-rt-release_40-r294803vendor/compiler-rt/compiler-rt-release_40-r294123

https://llvm.org/svn/llvm-project/compiler-rt/branches/release_40@294123

1 files changed, 40 insertions, 14 deletions

diff --git a/lib/lsan/lsan_interceptors.cc b/lib/lsan/lsan_interceptors.cc
index 28f1786edb64..12190175949f 100644
--- a/lib/lsan/lsan_interceptors.cc
+++ b/lib/lsan/lsan_interceptors.cc
@@ -19,6 +19,7 @@
 #include "sanitizer_common/sanitizer_flags.h"
 #include "sanitizer_common/sanitizer_internal_defs.h"
 #include "sanitizer_common/sanitizer_linux.h"
+#include "sanitizer_common/sanitizer_platform_interceptors.h"
 #include "sanitizer_common/sanitizer_platform_limits_posix.h"
 #include "sanitizer_common/sanitizer_tls_get_addr.h"
 #include "lsan.h"
@@ -86,11 +87,26 @@ INTERCEPTOR(void*, realloc, void *q, uptr size) {
   return Reallocate(stack, q, size, 1);
 }
 
+#if SANITIZER_INTERCEPT_MEMALIGN
 INTERCEPTOR(void*, memalign, uptr alignment, uptr size) {
   ENSURE_LSAN_INITED;
   GET_STACK_TRACE_MALLOC;
   return Allocate(stack, size, alignment, kAlwaysClearMemory);
 }
+#define LSAN_MAYBE_INTERCEPT_MEMALIGN INTERCEPT_FUNCTION(memalign)
+
+INTERCEPTOR(void *, __libc_memalign, uptr alignment, uptr size) {
+  ENSURE_LSAN_INITED;
+  GET_STACK_TRACE_MALLOC;
+  void *res = Allocate(stack, size, alignment, kAlwaysClearMemory);
+  DTLS_on_libc_memalign(res, size);
+  return res;
+}
+#define LSAN_MAYBE_INTERCEPT___LIBC_MEMALIGN INTERCEPT_FUNCTION(__libc_memalign)
+#else
+#define LSAN_MAYBE_INTERCEPT_MEMALIGN
+#define LSAN_MAYBE_INTERCEPT___LIBC_MEMALIGN
+#endif // SANITIZER_INTERCEPT_MEMALIGN
 
 INTERCEPTOR(void*, aligned_alloc, uptr alignment, uptr size) {
   ENSURE_LSAN_INITED;
@@ -106,14 +122,6 @@ INTERCEPTOR(int, posix_memalign, void **memptr, uptr alignment, uptr size) {
   return 0;
 }
 
-INTERCEPTOR(void *, __libc_memalign, uptr alignment, uptr size) {
-  ENSURE_LSAN_INITED;
-  GET_STACK_TRACE_MALLOC;
-  void *res = Allocate(stack, size, alignment, kAlwaysClearMemory);
-  DTLS_on_libc_memalign(res, size);
-  return res;
-}
-
 INTERCEPTOR(void*, valloc, uptr size) {
   ENSURE_LSAN_INITED;
   GET_STACK_TRACE_MALLOC;
@@ -127,6 +135,7 @@ INTERCEPTOR(uptr, malloc_usable_size, void *ptr) {
   return GetMallocUsableSize(ptr);
 }
 
+#if SANITIZER_INTERCEPT_MALLOPT_AND_MALLINFO
 struct fake_mallinfo {
   int x[10];
 };
@@ -136,11 +145,18 @@ INTERCEPTOR(struct fake_mallinfo, mallinfo, void) {
   internal_memset(&res, 0, sizeof(res));
   return res;
 }
+#define LSAN_MAYBE_INTERCEPT_MALLINFO INTERCEPT_FUNCTION(mallinfo)
 
 INTERCEPTOR(int, mallopt, int cmd, int value) {
   return -1;
 }
+#define LSAN_MAYBE_INTERCEPT_MALLOPT INTERCEPT_FUNCTION(mallopt)
+#else
+#define LSAN_MAYBE_INTERCEPT_MALLINFO
+#define LSAN_MAYBE_INTERCEPT_MALLOPT
+#endif // SANITIZER_INTERCEPT_MALLOPT_AND_MALLINFO
 
+#if SANITIZER_INTERCEPT_PVALLOC
 INTERCEPTOR(void*, pvalloc, uptr size) {
   ENSURE_LSAN_INITED;
   GET_STACK_TRACE_MALLOC;
@@ -152,8 +168,17 @@ INTERCEPTOR(void*, pvalloc, uptr size) {
   }
   return Allocate(stack, size, GetPageSizeCached(), kAlwaysClearMemory);
 }
+#define LSAN_MAYBE_INTERCEPT_PVALLOC INTERCEPT_FUNCTION(pvalloc)
+#else
+#define LSAN_MAYBE_INTERCEPT_PVALLOC
+#endif // SANITIZER_INTERCEPT_PVALLOC
 
+#if SANITIZER_INTERCEPT_CFREE
 INTERCEPTOR(void, cfree, void *p) ALIAS(WRAPPER_NAME(free));
+#define LSAN_MAYBE_INTERCEPT_CFREE INTERCEPT_FUNCTION(cfree)
+#else
+#define LSAN_MAYBE_INTERCEPT_CFREE
+#endif // SANITIZER_INTERCEPT_CFREE
 
 #define OPERATOR_NEW_BODY                              \
   ENSURE_LSAN_INITED;                                  \
@@ -277,17 +302,18 @@ namespace __lsan {
 void InitializeInterceptors() {
   INTERCEPT_FUNCTION(malloc);
   INTERCEPT_FUNCTION(free);
-  INTERCEPT_FUNCTION(cfree);
+  LSAN_MAYBE_INTERCEPT_CFREE;
   INTERCEPT_FUNCTION(calloc);
   INTERCEPT_FUNCTION(realloc);
-  INTERCEPT_FUNCTION(memalign);
+  LSAN_MAYBE_INTERCEPT_MEMALIGN;
+  LSAN_MAYBE_INTERCEPT___LIBC_MEMALIGN;
+  INTERCEPT_FUNCTION(aligned_alloc);
   INTERCEPT_FUNCTION(posix_memalign);
-  INTERCEPT_FUNCTION(__libc_memalign);
   INTERCEPT_FUNCTION(valloc);
-  INTERCEPT_FUNCTION(pvalloc);
+  LSAN_MAYBE_INTERCEPT_PVALLOC;
   INTERCEPT_FUNCTION(malloc_usable_size);
-  INTERCEPT_FUNCTION(mallinfo);
-  INTERCEPT_FUNCTION(mallopt);
+  LSAN_MAYBE_INTERCEPT_MALLINFO;
+  LSAN_MAYBE_INTERCEPT_MALLOPT;
   INTERCEPT_FUNCTION(pthread_create);
   INTERCEPT_FUNCTION(pthread_join);