From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2178) id 0CC5A3858409; Fri, 21 Jul 2023 14:40:57 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0CC5A3858409 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1689950457; bh=Y65AZnjp3TA9YGytmtfULDG2JLjdzZEirIWYoL2mfwM=; h=From:To:Subject:Date:From; b=y4fWzPMwJVBOAAVo5IhDPHWYuzUu7EHb3LxCMBjzLVKM3puQmThwWXeM20KmLb87N khDiaSz1r4lkDNXafPvBVXd9NHqiCJ/7BHegKitJZqEaBMXyTGmy3TECiHiYA+XQc+ 8B+9F2e8nYVH4Tmxdu1sntHrL6ZdpxwWhG0uTlAU= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Florian Weimer To: glibc-cvs@sourceware.org Subject: [glibc/release/2.30/master] debug: Mark libSegFault.so as NODELETE X-Act-Checkin: glibc X-Git-Author: Florian Weimer X-Git-Refname: refs/heads/release/2.30/master X-Git-Oldrev: 706c8a7f063b67b80993309145265914d4b1a7e8 X-Git-Newrev: a0350c84c15294ff01bde2a233a061c7b23cf4c3 Message-Id: <20230721144057.0CC5A3858409@sourceware.org> Date: Fri, 21 Jul 2023 14:40:57 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a0350c84c15294ff01bde2a233a061c7b23cf4c3 commit a0350c84c15294ff01bde2a233a061c7b23cf4c3 Author: Florian Weimer Date: Thu Jul 20 18:31:48 2023 +0200 debug: Mark libSegFault.so as NODELETE The signal handler installed in the ELF constructor cannot easily be removed again (because the program may have changed handlers in the meantime). Mark the object as NODELETE so that the registered handler function is never unloaded. Reviewed-by: Carlos O'Donell (cherry picked from commit 23ee92deea4c99d0e6a5f48fa7b942909b123ec5) Diff: --- debug/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/debug/Makefile b/debug/Makefile index 6351b7e9f4..48d03395a1 100644 --- a/debug/Makefile +++ b/debug/Makefile @@ -168,6 +168,8 @@ extra-libs-others = $(extra-libs) libSegFault-routines = segfault libSegFault-inhibit-o = $(filter-out .os,$(object-suffixes)) +# libSegFault.so installs a signal handler in its ELF constructor. +LDFLAGS-SegFault.so = -Wl,--enable-new-dtags,-z,nodelete libpcprofile-routines = pcprofile libpcprofile-inhibit-o = $(filter-out .os,$(object-suffixes))