docs: linux core dump instructions (#2690)

microsoft · Jun 24, 2020 · 924a884 · 924a884
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commit 924a884
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diff --git a/browser_patches/webkit/cheatsheet.md b/browser_patches/webkit/cheatsheet.md
@@ -5,3 +5,15 @@ In `Source\WTF\wtf\win\DbgHelperWin.cpp` replace
 ```#if !defined(NDEBUG)``` with ```#if 1```
 
 Then regular `WTFReportBacktrace()` works.
+
+### Enable core dumps on Linux
+
+```bash
+mkdir -p /tmp/coredumps
+sudo bash -c 'echo "/tmp/coredumps/core-pid_%p.dump" > /proc/sys/kernel/core_pattern'
+ulimit -c unlimited
+```
+Then to read stack traces run the following command:
+```bash
+Tools/jhbuild/jhbuild-wrapper --wpe run gdb --batch -ex "thread apply all bt" WebKitBuild/WPE/Release/bin/MiniBrowser /tmp/coredumps/core-pid_29652.dump &> trace.txt
+```