Removed platform-specific ifdefs from sanitizer_procmaps.h

Summary: Removed platform-specific ifdefs for linux, mac, freebsd and netbsd from sanitizer_procmaps.h

Patch by Yicheng Wang <yichengfb@fb.com>

Reviewers: kcc, kubamracek, alekseyshl, fjricci, vitalybuka

Reviewed By: fjricci, vitalybuka

Subscribers: vitalybuka, emaste, krytarowski, llvm-commits

Differential Revision: https://reviews.llvm.org/D38098

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@313999 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 17 insertions, 20 deletions

diff --git a/lib/sanitizer_common/sanitizer_procmaps_common.cc b/lib/sanitizer_common/sanitizer_procmaps_common.cc
index c4daf0497..30663e8c6 100644
--- a/lib/sanitizer_common/sanitizer_procmaps_common.cc
+++ b/lib/sanitizer_common/sanitizer_procmaps_common.cc
@@ -20,9 +20,8 @@
 
 namespace __sanitizer {
 
-// Linker initialized.
-ProcSelfMapsBuff MemoryMappingLayout::cached_proc_self_maps_;
-StaticSpinMutex MemoryMappingLayout::cache_lock_;  // Linker initialized.
+static ProcSelfMapsBuff cached_proc_self_maps;
+static StaticSpinMutex cache_lock;
 
 static int TranslateDigit(char c) {
   if (c >= '0' && c <= '9')
@@ -71,14 +70,14 @@ void MemoryMappedSegment::AddAddressRanges(LoadedModule *module) {
 }
 
 MemoryMappingLayout::MemoryMappingLayout(bool cache_enabled) {
-  ReadProcMaps(&proc_self_maps_);
+  ReadProcMaps(&data_.proc_self_maps);
   if (cache_enabled) {
-    if (proc_self_maps_.mmaped_size == 0) {
+    if (data_.proc_self_maps.mmaped_size == 0) {
       LoadFromCache();
-      CHECK_GT(proc_self_maps_.len, 0);
+      CHECK_GT(data_.proc_self_maps.len, 0);
     }
   } else {
-    CHECK_GT(proc_self_maps_.mmaped_size, 0);
+    CHECK_GT(data_.proc_self_maps.mmaped_size, 0);
   }
   Reset();
   // FIXME: in the future we may want to cache the mappings on demand only.
@@ -89,24 +88,22 @@ MemoryMappingLayout::MemoryMappingLayout(bool cache_enabled) {
 MemoryMappingLayout::~MemoryMappingLayout() {
   // Only unmap the buffer if it is different from the cached one. Otherwise
   // it will be unmapped when the cache is refreshed.
-  if (proc_self_maps_.data != cached_proc_self_maps_.data) {
-    UnmapOrDie(proc_self_maps_.data, proc_self_maps_.mmaped_size);
+  if (data_.proc_self_maps.data != cached_proc_self_maps.data) {
+    UnmapOrDie(data_.proc_self_maps.data, data_.proc_self_maps.mmaped_size);
   }
 }
 
-void MemoryMappingLayout::Reset() {
-  current_ = proc_self_maps_.data;
-}
+void MemoryMappingLayout::Reset() { data_.current = data_.proc_self_maps.data; }
 
 // static
 void MemoryMappingLayout::CacheMemoryMappings() {
-  SpinMutexLock l(&cache_lock_);
+  SpinMutexLock l(&cache_lock);
   // Don't invalidate the cache if the mappings are unavailable.
   ProcSelfMapsBuff old_proc_self_maps;
-  old_proc_self_maps = cached_proc_self_maps_;
-  ReadProcMaps(&cached_proc_self_maps_);
-  if (cached_proc_self_maps_.mmaped_size == 0) {
-    cached_proc_self_maps_ = old_proc_self_maps;
+  old_proc_self_maps = cached_proc_self_maps;
+  ReadProcMaps(&cached_proc_self_maps);
+  if (cached_proc_self_maps.mmaped_size == 0) {
+    cached_proc_self_maps = old_proc_self_maps;
   } else {
     if (old_proc_self_maps.mmaped_size) {
       UnmapOrDie(old_proc_self_maps.data,
@@ -116,9 +113,9 @@ void MemoryMappingLayout::CacheMemoryMappings() {
 }
 
 void MemoryMappingLayout::LoadFromCache() {
-  SpinMutexLock l(&cache_lock_);
-  if (cached_proc_self_maps_.data) {
-    proc_self_maps_ = cached_proc_self_maps_;
+  SpinMutexLock l(&cache_lock);
+  if (cached_proc_self_maps.data) {
+    data_.proc_self_maps = cached_proc_self_maps;
   }
 }