From 68e3f7c30c30215e9ace090763b388b94ef92959 Mon Sep 17 00:00:00 2001
From: Robert O'Callahan <rocallahan@gmail.com>
Date: Mon, 16 Nov 2020 23:40:36 +0000
Subject: [PATCH] Expose v8dbg symbols so that V8's postmortem metadata is
 accessible in the Chromium binary, if built

Exposing the v8dbg postmortem metadata symbols in Chromium builds (when
built, which they aren't by default) enables detailed analysis of V8 JS
execution by observing binary-level execution:
https://robert.ocallahan.org/2020/05/omniscient-js-debugging-in-pernosco.html

Bug: 1147409
Change-Id: I8f5863df2c2860ce3120c548e915f95bd16d321c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2528209
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#827974}
---
 AUTHORS                | 1 +
 build/linux/chrome.map | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/AUTHORS b/AUTHORS
index 52412bcfa93e60..859f997f637a26 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -860,6 +860,7 @@ Robert Bear Travis <betravis@adobe.com>
 Robert Bradford <robert.bradford@intel.com>
 Robert Goldberg <goldberg@adobe.com>
 Robert Hogan <robhogan@gmail.com>
+Robert O'Callahan <rocallahan@gmail.com>
 Robert Nagy <robert.nagy@gmail.com>
 Robert Sesek <rsesek@bluestatic.org>
 Roger Zanoni <rogerzanoni@gmail.com>
diff --git a/build/linux/chrome.map b/build/linux/chrome.map
index 914f37b45dfbb4..718796f8c456af 100644
--- a/build/linux/chrome.map
+++ b/build/linux/chrome.map
@@ -82,6 +82,8 @@ global:
   localtime64_r;
   localtime_r;
 
+  v8dbg_*;
+
 local:
   *;
 };