From f582437162ff483b342ad9d02cb0af948a734c5a Mon Sep 17 00:00:00 2001
From: Jeff Sharkey <jsharkey@android.com>
Date: Tue, 19 Feb 2013 17:00:46 -0800
Subject: [PATCH] Utility to dump stacks from arbitrary processes.
Saves any existing traces, dumps stacks from the target process,
then restores the original traces.
Change-Id: I2513f0de0d90cccd56c4949ca7d218e430439c00
---
envsetup.sh | 35 ++++++++++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/envsetup.sh b/envsetup.sh
index 3ec8e1a52..785e56c1a 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -789,7 +789,40 @@ function pid()
# to the usual ANR traces file
function systemstack()
{
- adb shell echo '""' '>>' /data/anr/traces.txt && adb shell chmod 776 /data/anr/traces.txt && adb shell kill -3 $(pid system_server)
+ stacks system_server
+}
+
+function stacks()
+{
+ if [[ $1 =~ ^[0-9]+$ ]] ; then
+ local PID="$1"
+ elif [ "$1" ] ; then
+ local PID=$(pid $1)
+ else
+ echo "usage: stacks [pid|process name]"
+ fi
+
+ if [ "$PID" ] ; then
+ local TRACES=/data/anr/traces.txt
+ local ORIG=/data/anr/traces.orig
+ local TMP=/data/anr/traces.tmp
+
+ # Keep original traces to avoid clobbering
+ adb shell mv $TRACES $ORIG
+
+ # Make sure we have a usable file
+ adb shell touch $TRACES
+ adb shell chmod 666 $TRACES
+
+ # Dump stacks and wait for dump to finish
+ adb shell kill -3 $PID
+ adb shell notify $TRACES
+
+ # Restore original stacks, and show current output
+ adb shell mv $TRACES $TMP
+ adb shell mv $ORIG $TRACES
+ adb shell cat $TMP | less -S
+ fi
}
function gdbclient()
--
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