<p>pespin has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/osmo-sgsn/+/21343">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">gbproxy: generate coredump and exit upon SIGABRT received<br><br>Previous code relied on abort() switching sigaction to SIG_FDL +<br>retriggering SIGABRT in case the signal handler returns, which would<br>then generate the coredump + terminate the process.<br>However, if a SIGABRT is received from somewhere else (kill -SIGABRT),<br>then the process would print the talloc report and continue running,<br>which is not desired.<br><br>Change-Id: I97559b29328101c7cf340aaf1052c0c406634065<br>Fixes: OS#4865<br>---<br>M src/gbproxy/gb_proxy_main.c<br>1 file changed, 11 insertions(+), 2 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/43/21343/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/gbproxy/gb_proxy_main.c b/src/gbproxy/gb_proxy_main.c</span><br><span>index 63e5f49..31331fc 100644</span><br><span>--- a/src/gbproxy/gb_proxy_main.c</span><br><span>+++ b/src/gbproxy/gb_proxy_main.c</span><br><span>@@ -92,8 +92,17 @@</span><br><span> exit(0);</span><br><span> break;</span><br><span> case SIGABRT:</span><br><span style="color: hsl(0, 100%, 40%);">- /* in case of abort, we want to obtain a talloc report</span><br><span style="color: hsl(0, 100%, 40%);">- * and then return to the caller, who will abort the process */</span><br><span style="color: hsl(120, 100%, 40%);">+ /* in case of abort, we want to obtain a talloc report and</span><br><span style="color: hsl(120, 100%, 40%);">+ * then run default SIGABRT handler, who will generate coredump</span><br><span style="color: hsl(120, 100%, 40%);">+ * and abort the process. abort() should do this for us after we</span><br><span style="color: hsl(120, 100%, 40%);">+ * return, but program wouldn't exit if an external SIGABRT is</span><br><span style="color: hsl(120, 100%, 40%);">+ * received.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+ talloc_report(tall_vty_ctx, stderr);</span><br><span style="color: hsl(120, 100%, 40%);">+ talloc_report_full(tall_sgsn_ctx, stderr);</span><br><span style="color: hsl(120, 100%, 40%);">+ signal(SIGABRT, SIG_DFL);</span><br><span style="color: hsl(120, 100%, 40%);">+ raise(SIGABRT);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span> case SIGUSR1:</span><br><span> talloc_report(tall_vty_ctx, stderr);</span><br><span> talloc_report_full(tall_sgsn_ctx, stderr);</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/osmo-sgsn/+/21343">change 21343</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/c/osmo-sgsn/+/21343"/><meta itemprop="name" content="View Change"/></div></div>
<div style="display:none"> Gerrit-Project: osmo-sgsn </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: I97559b29328101c7cf340aaf1052c0c406634065 </div>
<div style="display:none"> Gerrit-Change-Number: 21343 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: pespin <pespin@sysmocom.de> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>