[rpms/gdb] gdb-17.2-rebase-f44: [RHEL5] Workaround kernel for detaching SIGSTOPped processes (BZ 809382).

[rpms/gdb] gdb-17.2-rebase-f44: [RHEL5] Workaround kernel for detaching SIGSTOPped processes (BZ 809382).

[Jan Kratochvil]

A new commit has been pushed.

Repo   : rpms/gdb
Branch : gdb-17.2-rebase-f44
Commit : 72cb82c2bf0f78e842f013d0ad8777685c28f3c3
Author : Jan Kratochvil <jan.kratochvil@redhat.com>
Date   : 2012-04-25T20:59:19+02:00
Stats  : +39/-1 in 2 file(s)
URL    : https://src.fedoraproject.org/rpms/gdb/c/72cb82c2bf0f78e842f013d0ad8777685c28f3c3?branch=gdb-17.2-rebase-f44

Log:
[RHEL5] Workaround kernel for detaching SIGSTOPped processes (BZ 809382).

---
diff --git a/gdb-rhel5-compat.patch b/gdb-rhel5-compat.patch
new file mode 100644
index 0000000..921b1a1
--- /dev/null
+++ b/gdb-rhel5-compat.patch
@@ -0,0 +1,29 @@
+Index: gdb-7.2.50.20110328/gdb/linux-nat.c
+===================================================================
+--- gdb-7.2.50.20110328.orig/gdb/linux-nat.c	2011-03-28 18:46:16.000000000 +0200
++++ gdb-7.2.50.20110328/gdb/linux-nat.c	2011-03-28 18:47:56.000000000 +0200
+@@ -1774,8 +1774,22 @@ get_pending_status (struct lwp_info *lp,
+ 			    target_signal_to_string (signo));
+     }
+ 
+-  if (*status == 0 && GET_PID (lp->ptid) == pid_was_stopped)
+-    *status = W_STOPCODE (SIGSTOP);
++  /* Workaround RHEL-5 kernel which has unreliable PTRACE_DETACH, SIGSTOP (that
++     many TIDs are left unstopped).  See RH Bug 496732.  */
++  if (GET_PID (lp->ptid) == pid_was_stopped)
++    {
++      int err;
++
++      errno = 0;
++      err = kill_lwp (GET_LWP (lp->ptid), SIGSTOP);
++      if (debug_linux_nat)
++	{
++	  fprintf_unfiltered (gdb_stdlog,
++			      "SC:  lwp kill %d %s\n",
++			      err,
++			      errno ? safe_strerror (errno) : "ERRNO-OK");
++	}
++    }
+ 
+   return 0;
+ }

diff --git a/gdb.spec b/gdb.spec
index e257fad..c8be9c0 100644
--- a/gdb.spec
+++ b/gdb.spec
@@ -35,7 +35,7 @@ Version: 7.4.50.%{snap}
 
 # The release always contains a leading reserved number, start it at 1.
 # `upstream' is not a part of `name' to stay fully rpm dependencies compatible for the testing.
-Release: 42%{?dist}
+Release: 43%{?dist}
 
 License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ and GPLv2+ with exceptions and GPL+ and LGPLv2+ and BSD and Public Domain
 Group: Development/Debuggers
@@ -377,6 +377,10 @@ Patch330: gdb-6.8-bz436037-reg-no-longer-active.patch
 #=push: It was useful only after gdb-6.8-attach-signalled-detach-stopped.patch .
 Patch331: gdb-6.8-quit-never-aborts.patch
 
+# [RHEL5] Workaround kernel for detaching SIGSTOPped processes (BZ 809382).
+#=fedora
+Patch335: gdb-rhel5-compat.patch
+
 # [RHEL5,RHEL6] Fix attaching to stopped processes.
 #=fedora
 Patch337: gdb-6.8-attach-signalled-detach-stopped.patch
@@ -926,7 +930,9 @@ rm -f gdb/jv-exp.c gdb/m2-exp.c gdb/objc-exp.c gdb/p-exp.c
 %patch642 -p1 -R
 %endif
 %patch337 -p1
+%patch335 -p1
 %if 0%{!?rhel:1} || 0%{?rhel} > 6
+%patch335 -p1 -R
 %patch337 -p1 -R
 %endif
 
@@ -1395,6 +1401,9 @@ fi
 %endif # 0%{!?el5:1} || "%{_target_cpu}" == "noarch"
 
 %changelog
+* Wed Apr 25 2012 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.4.50.20120120-43.fc17
+- [RHEL5] Workaround kernel for detaching SIGSTOPped processes (BZ 809382).
+
 * Tue Apr 24 2012 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.4.50.20120120-42.fc17
 - Update "set auto-load" patchset and the --with-auto-load-safe-path setting.
 - [RHEL] Disable gdb-add-index even on RHEL-6 as RHEL-6.0 had too old elfutils.