Changes imported from Abseil "staging" branch:

  - b527a3e4b36b644ac424e3c525b1cd393f6f6c40 Fix some typos in the usage examples by Jorg Brown <jorg@google.com>
  - 82be4a9adf3bb0ddafc0d46274969c99afffe870 Fix typo in optional.h comment. by Abseil Team <absl-team@google.com>
  - d6ee63bf8fc51fba074c23b33cebc28c808d7f07 Remove internal-only identifiers from code. by Daniel Katz <katzdm@google.com>
  - f9c3ad2f0d73f53b21603638af8b4bed636e79f4 Use easier understandable names for absl::StartsWith and ... by Abseil Team <absl-team@google.com>
  - 7c16c14fefee89c927b8789d6043c4691bcffc9b Add -Wno-missing-prototypes back to the LLVM copts. by Derek Mauro <dmauro@google.com>
  - 2f4b7d2e50c7023240242f1e15db60ccd7e8768d IWYU | absl/strings by Juemin Yang <jueminyang@google.com>
  - a99cbcc1daa34a2d6a2bb26de275e05173cc77e9 IWYU | absl/type by Juemin Yang <jueminyang@google.com>
  - 12e1146d0fc76c071d7e0ebaabb62f0a984fae66 Use LLVM_FLAGS and LLVM_TEST_FLAGS when --compiler=llvm. by Derek Mauro <dmauro@google.com>
  - cd6bea616abda558d0bace5bd77455662a233688 IWYU | absl/debugging by Juemin Yang <jueminyang@google.com>
  - d9a7382e59d46a8581b6b7a31cd5a48bb89326e9 IWYU | absl/synchronization by Juemin Yang <jueminyang@google.com>
  - 07ec7d6d5a4a666f4183c5d0ed9c342baa7b24bc IWYU | absl/numeric by Juemin Yang <jueminyang@google.com>
  - 12bfe40051f4270f8707e191af5652f83f2f750c Remove the RoundTrip{Float,Double}ToBuffer routines from ... by Jorg Brown <jorg@google.com>
  - eeb4fd67c9d97f66cb9475c3c5e51ab132f1c810 Adds conversion functions for converting between absl/tim... by Greg Miller <jgm@google.com>
  - 59a2108d05d4ea85dc5cc11e49b2cd2335d4295a Change Substitute to use %.6g formatting rather than 15/1... by Jorg Brown <jorg@google.com>
  - 394becb48e0fcd161642cdaac5120d32567e0ef8 IWYU | absl/meta by Juemin Yang <jueminyang@google.com>
  - 1e5da6e8da336699b2469dcf6dda025b9b0ec4c9 Rewrite atomic_hook.h to not use std::atomic<T*> under Wi... by Greg Falcon <gfalcon@google.com>

GitOrigin-RevId: b527a3e4b36b644ac424e3c525b1cd393f6f6c40
Change-Id: I14e331d91c956ef045ac7927091a9f179716de0c

1 files changed, 11 insertions, 15 deletions

diff --git a/absl/base/internal/malloc_hook.cc b/absl/base/internal/malloc_hook.cc
index 4f5a0befe2f0..7165d4cbd02a 100644
--- a/absl/base/internal/malloc_hook.cc
+++ b/absl/base/internal/malloc_hook.cc
@@ -453,16 +453,13 @@ void MallocHook::InvokeSbrkHookSlow(const void* result, ptrdiff_t increment) {
 }  // namespace base_internal
 }  // namespace absl
 
-ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(google_malloc);
-ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(google_malloc);
-// actual functions are in debugallocation.cc or tcmalloc.cc
 ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(malloc_hook);
 ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(malloc_hook);
 // actual functions are in this file, malloc_hook.cc, and low_level_alloc.cc
+ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(google_malloc);
+ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(google_malloc);
 ABSL_DEFINE_ATTRIBUTE_SECTION_VARS(blink_malloc);
 ABSL_DECLARE_ATTRIBUTE_SECTION_VARS(blink_malloc);
-// actual functions are in third_party/blink_headless/.../{PartitionAlloc,
-// FastMalloc}.cpp.
 
 #define ADDR_IN_ATTRIBUTE_SECTION(addr, name)                         \
   (reinterpret_cast<uintptr_t>(ABSL_ATTRIBUTE_SECTION_START(name)) <= \
@@ -486,13 +483,6 @@ static inline bool InHookCaller(const void* caller) {
 static absl::once_flag in_hook_caller_once;
 
 static void InitializeInHookCaller() {
-  ABSL_INIT_ATTRIBUTE_SECTION_VARS(google_malloc);
-  if (ABSL_ATTRIBUTE_SECTION_START(google_malloc) ==
-      ABSL_ATTRIBUTE_SECTION_STOP(google_malloc)) {
-    ABSL_RAW_LOG(ERROR,
-                 "google_malloc section is missing, "
-                 "thus InHookCaller is broken!");
-  }
   ABSL_INIT_ATTRIBUTE_SECTION_VARS(malloc_hook);
   if (ABSL_ATTRIBUTE_SECTION_START(malloc_hook) ==
       ABSL_ATTRIBUTE_SECTION_STOP(malloc_hook)) {
@@ -500,9 +490,14 @@ static void InitializeInHookCaller() {
                  "malloc_hook section is missing, "
                  "thus InHookCaller is broken!");
   }
+  ABSL_INIT_ATTRIBUTE_SECTION_VARS(google_malloc);
+  if (ABSL_ATTRIBUTE_SECTION_START(google_malloc) ==
+      ABSL_ATTRIBUTE_SECTION_STOP(google_malloc)) {
+    ABSL_RAW_LOG(ERROR,
+                 "google_malloc section is missing, "
+                 "thus InHookCaller is broken!");
+  }
   ABSL_INIT_ATTRIBUTE_SECTION_VARS(blink_malloc);
-  // The blink_malloc section is only expected to be present in binaries
-  // linking against the blink rendering engine in third_party/blink_headless.
 }
 
 // We can improve behavior/compactness of this function
@@ -574,7 +569,8 @@ extern "C" int MallocHook_GetCallerStackTrace(
 // still allow users to disable this in special cases that can't be easily
 // detected during compilation, via -DABSL_MALLOC_HOOK_MMAP_DISABLE or #define
 // ABSL_MALLOC_HOOK_MMAP_DISABLE.
-// TODO(b/62370839): Remove MALLOC_HOOK_MMAP_DISABLE in CROSSTOOL for tsan and
+//
+// TODO(absl-team): Remove MALLOC_HOOK_MMAP_DISABLE in CROSSTOOL for tsan and
 // msan config; Replace MALLOC_HOOK_MMAP_DISABLE with
 // ABSL_MALLOC_HOOK_MMAP_DISABLE for other special cases.
 #if !defined(THREAD_SANITIZER) && !defined(MEMORY_SANITIZER) && \