Generalize sanitizer allocator public interface.

Introduce new public header <sanitizer/allocator_interface.h> and a set
of functions __sanitizer_get_ownership(), __sanitizer_malloc_hook() etc.
that will eventually replace their tool-specific equivalents
(__asan_get_ownership(), __msan_get_ownership() etc.). Tool-specific
functions are now deprecated and implemented as stubs redirecting
to __sanitizer_ versions (which are implemented differently in each tool).

Replace all uses of __xsan_ versions with __sanitizer_ versions in unit
and lit tests.

llvm-svn: 212469

1 files changed, 29 insertions, 7 deletions

diff --git a/compiler-rt/lib/msan/msan_allocator.cc b/compiler-rt/lib/msan/msan_allocator.cc
index cb8af279d7d..fb1788f2acc 100644
--- a/compiler-rt/lib/msan/msan_allocator.cc
+++ b/compiler-rt/lib/msan/msan_allocator.cc
@@ -13,6 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "sanitizer_common/sanitizer_allocator.h"
+#include "sanitizer_common/sanitizer_allocator_interface.h"
 #include "sanitizer_common/sanitizer_stackdepot.h"
 #include "msan.h"
 #include "msan_allocator.h"
@@ -182,24 +183,45 @@ static uptr AllocationSize(const void *p) {
 
 using namespace __msan;
 
-uptr __msan_get_current_allocated_bytes() {
+uptr __sanitizer_get_current_allocated_bytes() {
   uptr stats[AllocatorStatCount];
   allocator.GetStats(stats);
   return stats[AllocatorStatAllocated];
 }
+uptr __msan_get_current_allocated_bytes() {
+  return __sanitizer_get_current_allocated_bytes();
+}
 
-uptr __msan_get_heap_size() {
+uptr __sanitizer_get_heap_size() {
   uptr stats[AllocatorStatCount];
   allocator.GetStats(stats);
   return stats[AllocatorStatMapped];
 }
+uptr __msan_get_heap_size() {
+  return __sanitizer_get_heap_size();
+}
 
-uptr __msan_get_free_bytes() { return 1; }
+uptr __sanitizer_get_free_bytes() { return 1; }
+uptr __msan_get_free_bytes() {
+  return __sanitizer_get_free_bytes();
+}
 
-uptr __msan_get_unmapped_bytes() { return 1; }
+uptr __sanitizer_get_unmapped_bytes() { return 1; }
+uptr __msan_get_unmapped_bytes() {
+  return __sanitizer_get_unmapped_bytes();
+}
 
-uptr __msan_get_estimated_allocated_size(uptr size) { return size; }
+uptr __sanitizer_get_estimated_allocated_size(uptr size) { return size; }
+uptr __msan_get_estimated_allocated_size(uptr size) {
+  return __sanitizer_get_estimated_allocated_size(size);
+}
 
-int __msan_get_ownership(const void *p) { return AllocationSize(p) != 0; }
+int __sanitizer_get_ownership(const void *p) { return AllocationSize(p) != 0; }
+int __msan_get_ownership(const void *p) {
+  return __sanitizer_get_ownership(p);
+}
 
-uptr __msan_get_allocated_size(const void *p) { return AllocationSize(p); }
+uptr __sanitizer_get_allocated_size(const void *p) { return AllocationSize(p); }
+uptr __msan_get_allocated_size(const void *p) {
+  return __sanitizer_get_allocated_size(p);
+}