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[PATCH] S/390: Add SystemTap probes to longjmp and setjmp.

From: Stefan Liebler <stli at linux dot vnet dot ibm dot com>
To: libc-alpha at sourceware dot org
Cc: krebbel at linux dot vnet dot ibm dot com, arnez at linux dot vnet dot ibm dot com
Date: Thu, 09 Oct 2014 12:51:58 +0200
Subject: [PATCH] S/390: Add SystemTap probes to longjmp and setjmp.
Authentication-results: sourceware.org; auth=none

Hi,

This patch adds support for the SystemTap probes setjmp, longjmp andlongjmp_target.The longjmp probe is needed by gdb to determine the target branchaddress while stepping over a longjmp call.

In order to have the demangled address as argument for thelongjmp-probe, the demangling was reordered.


Tested on s390/s390x.

(For 31bit gdb, a gdb-patch is needed in order to step over a longjmpcall, but the probes are okay.)


Bye
Stefan

---
2014-10-09  Stefan Liebler  <stli@linux.vnet.ibm.com>

	* sysdeps/s390/s390-32/setjmp.S (__sigsetjmp):
	Add setjmp LIBC_PROBE.
	* sysdeps/s390/s390-64/setjmp.S (__sigsetjmp):
	Likewise.
	* sysdeps/s390/s390-32/__longjmp.c (__longjmp):
	Add longjmp, longjmp_target LIBC_PROBE.
	* sysdeps/s390/s390-64/__longjmp.c (__longjmp):
	Likewise.

Attachment: patchglibc_longjmp_probe_20141009
Description: Text document

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