From: Mark Wielaard <mjw@redhat.com>
Date: Fri, 13 Jun 2014 23:09:17 +0000 (+0200)
Subject: tests: backtrace.c accept __libc_do_syscall as first frame symname.
X-Git-Tag: elfutils-0.160~16
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1986c175c1b26f9e5e94e97d274095d45d7ab2ce;p=thirdparty%2Felfutils.git

tests: backtrace.c accept __libc_do_syscall as first frame symname.

On some architectures (Debian armhl) system calls go through
__libc_do_syscall instead of __kernel_vsyscall. Accept either of
these symbol names for the first backtrace frame.

Signed-off-by: Mark Wielaard <mjw@redhat.com>
---

diff --git a/tests/ChangeLog b/tests/ChangeLog
index 7c46428cb..90a2a0eec 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,8 @@
+2014-06-13  Mark Wielaard  <mjw@redhat.com>
+
+	* backtrace.c (callback_verify): Accept "__libc_do_syscall" as first
+	frame symname.
+
 2014-06-13  Mark Wielaard  <mjw@redhat.com>
 
 	* backtrace-subr.sh (check_native_unsupported): New function.
diff --git a/tests/backtrace.c b/tests/backtrace.c
index ce0bd17d1..1d3948ebf 100644
--- a/tests/backtrace.c
+++ b/tests/backtrace.c
@@ -98,7 +98,8 @@ callback_verify (pid_t tid, unsigned frameno, Dwarf_Addr pc,
   {
     case 0:
       if (! reduce_frameno && symname
-	       && strcmp (symname, "__kernel_vsyscall") == 0)
+	       && (strcmp (symname, "__kernel_vsyscall") == 0
+		   || strcmp (symname, "__libc_do_syscall") == 0))
 	reduce_frameno = true;
       else
 	assert (symname && strcmp (symname, "raise") == 0);