From: Alexander Monakov <amonakov@ispras.ru>
Date: Mon, 17 Jun 2013 16:36:06 +0000 (+0400)
Subject: egltrace/android: Fix tracing Zygote processes
X-Git-Url: https://git.cworth.org/git?a=commitdiff_plain;h=4460388e76648d908b71f3f5ea46d8ce2af39234;p=apitrace

egltrace/android: Fix tracing Zygote processes

The root cause of the problem was a bug in the implementation of
getZygoteProcessName.  When the wrap.$procname approach is used, reading
/proc/cmdline produces "$procname\0/system/bin\0--application\0"... (with
embedded zero characters).

Fixed by simply not supplying length argument to the truncate call, which will
truncate to strlen().  The same bug is also present in getProcessName.
---

diff --git a/wrappers/trace.cpp b/wrappers/trace.cpp
index d79b11b..33b5cf1 100644
--- a/wrappers/trace.cpp
+++ b/wrappers/trace.cpp
@@ -70,7 +70,7 @@ getZygoteProcessName(void)
     assert(fd >= 0);
     len = read(fd, buf, size - 1);
     close(fd);
-    path.truncate(len);
+    path.truncate();
 
     return path;
 }