From fa9669b60979b4b155bd643bb303a30cd56b7a28 Mon Sep 17 00:00:00 2001
From: blueboxd <48254131+blueboxd@users.noreply.github.com>
Date: Sat, 22 Jul 2023 15:48:03 +0900
Subject: [PATCH] use CrashReporter annotation to log fatal messages in crash
 log

---
 base/logging.cc                   | 10 ++++++++++
 base/logging.h                    | 29 +++++++++++++++++++++++++++++
 chrome/app/chrome_exe_main_mac.cc |  8 ++++++++
 sandbox/mac/sandbox_logging.cc    |  7 +++++--
 4 files changed, 52 insertions(+), 2 deletions(-)

diff --git a/base/logging.cc b/base/logging.cc
index 0508c883614f3a..95c0ff8b306fd2 100644
--- a/base/logging.cc
+++ b/base/logging.cc
@@ -57,6 +57,10 @@ typedef HANDLE FileHandle;
     MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_12
 #define USE_ASL
 #endif
+CRASH_REPORTER_CLIENT_HIDDEN
+struct crashreporter_annotations_t gCRAnnotations
+    __attribute__((section("__DATA," CRASHREPORTER_ANNOTATIONS_SECTION)))
+    = { CRASHREPORTER_ANNOTATIONS_VERSION, 0, 0, 0, 0, 0, 0, 0 };
 #endif  // BUILDFLAG(IS_IOS)
 
 #if defined(USE_ASL)
@@ -1027,6 +1031,12 @@ LogMessage::~LogMessage() {
     base::strlcpy(str_stack, str_newline.data(), std::size(str_stack));
     base::debug::Alias(&str_stack);
 
+#if BUILDFLAG(IS_MAC)
+    CRSetCrashLogMessage(str_newline.c_str());
+    CRSetCrashLogBacktrace(base::debug::StackTrace().ToString().c_str());
+    CRSetCrashLogMessage2(base::debug::TaskTrace().ToString().c_str());
+#endif
+
     if (!GetLogAssertHandlerStack().empty()) {
       LogAssertHandlerFunction log_assert_handler =
           GetLogAssertHandlerStack().top();
diff --git a/base/logging.h b/base/logging.h
index 1ae198e30b0b97..d8db7f9e6b55db 100644
--- a/base/logging.h
+++ b/base/logging.h
@@ -180,6 +180,35 @@
 // Additional logging-related information can be found here:
 // https://chromium.googlesource.com/chromium/src/+/main/docs/linux/debugging.md#Logging
 
+#if BUILDFLAG(IS_MAC)
+#define CRASHREPORTER_ANNOTATIONS_SECTION "__crash_info"
+#define CRASHREPORTER_ANNOTATIONS_VERSION 5
+#define CRASH_REPORTER_CLIENT_HIDDEN __attribute__((visibility("hidden")))
+
+#define _crc_make_getter(attr) ((const char *)(unsigned long)gCRAnnotations.attr)
+#define _crc_make_setter(attr, arg) (gCRAnnotations.attr = (uint64_t)(unsigned long)(arg))
+#define CRGetCrashLogMessage() _crc_make_getter(message)
+#define CRSetCrashLogMessage(m) _crc_make_setter(message, m)
+#define CRGetCrashLogMessage2() _crc_make_getter(message2)
+#define CRSetCrashLogMessage2(m) _crc_make_setter(message2, m)
+#define CRGetCrashLogBacktrace() _crc_make_getter(backtrace)
+#define CRSetCrashLogBacktrace(b) _crc_make_setter(backtrace, b)
+
+struct crashreporter_annotations_t {
+  uint64_t version;          // unsigned long
+  uint64_t message;          // char *
+  uint64_t signature_string; // char *
+  uint64_t backtrace;        // char *
+  uint64_t message2;         // char *
+  uint64_t thread;           // uint64_t
+  uint64_t dialog_mode;      // unsigned int
+  uint64_t abort_cause;      // unsigned int
+};
+
+CRASH_REPORTER_CLIENT_HIDDEN
+extern struct crashreporter_annotations_t gCRAnnotations;
+#endif
+
 namespace logging {
 
 // TODO(avi): do we want to do a unification of character types here?
diff --git a/chrome/app/chrome_exe_main_mac.cc b/chrome/app/chrome_exe_main_mac.cc
index b889644fa19dba..26767056789cf8 100644
--- a/chrome/app/chrome_exe_main_mac.cc
+++ b/chrome/app/chrome_exe_main_mac.cc
@@ -20,6 +20,7 @@
 #include <memory>
 
 #include "base/allocator/early_zone_registration_mac.h"
+#include "base/logging.h"
 #include "build/branding_buildflags.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_version.h"
@@ -36,6 +37,11 @@ extern "C" {
 void abort_report_np(const char* fmt, ...);
 }
 
+CRASH_REPORTER_CLIENT_HIDDEN
+struct crashreporter_annotations_t gCRAnnotations
+    __attribute__((section("__DATA," CRASHREPORTER_ANNOTATIONS_SECTION)))
+    = { CRASHREPORTER_ANNOTATIONS_VERSION, 0, 0, 0, 0, 0, 0, 0 };
+
 namespace {
 
 typedef int (*ChromeMainPtr)(int, char**);
@@ -144,6 +150,8 @@ __attribute__((used)) const char kGrossPaddingForCrbug1300598[36 * 1024] = {};
     fputs(message, stderr);
     if (__builtin_available(macOS 10.11, *)) {
       abort_report_np("%s", message);
+    } else {
+      CRSetCrashLogMessage(message);
     }
   }
   va_end(valist);
diff --git a/sandbox/mac/sandbox_logging.cc b/sandbox/mac/sandbox_logging.cc
index 2879672766e78b..0a06ef31c5741e 100644
--- a/sandbox/mac/sandbox_logging.cc
+++ b/sandbox/mac/sandbox_logging.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "sandbox/mac/sandbox_logging.h"
+#include "base/logging.h"
 
 #include <errno.h>
 #include <stdarg.h>
@@ -115,9 +116,11 @@ void SendAslLog(Level level, const char* message) {
   asl_set(asl_message.get(), ASL_KEY_MSG, message);
   asl_send(asl_client.get(), asl_message.get());
 
-  if (__builtin_available(macOS 10.11, *)) {
-    if (level == Level::FATAL) {
+  if (level == Level::FATAL) {
+    if (__builtin_available(macOS 10.11, *)) {
       abort_report_np(message);
+    } else {
+      CRSetCrashLogMessage(message);
     }
   }
 }