ofono: Disable backtrace for non-glibc libraries

It uses glibc backtrace() API which is not implemented
everywhere e.g. musl

Change-Id: I96380b994c27968542dba6dae220adfecaeda556
(From OE-Core rev: 4dd6bca8cdf538a7da9ffcb36faf70c3436b4f19)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-connectivity/ofono/ofono/0001-backtrace-Disable-for-non-glibc-C-libraries.patch

@@ -0,0 +1,40 @@
+From 2d729af0897d7d72b83d111876febf9e0eec1a68 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 3 Apr 2015 20:50:56 -0700
+Subject: [PATCH] backtrace: Disable for non-glibc C libraries
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+
+---
+ src/log.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/log.c b/src/log.c
+index febc874..9db4ae7 100644
+--- a/src/log.c
++++ b/src/log.c
+@@ -30,7 +30,9 @@
+ #include <stdlib.h>
+ #include <string.h>
+ #include <syslog.h>
++#ifdef __GLIBC__
+ #include <execinfo.h>
++#endif
+ #include <dlfcn.h>
+ 
+ #include "ofono.h"
+@@ -219,8 +221,9 @@ static void signal_handler(int signo)
+ {
+ 	ofono_error("Aborting (signal %d) [%s]", signo, program_exec);
+ 
++#ifdef __GLIBC__
+ 	print_backtrace(2);
+-
++#endif
+ 	exit(EXIT_FAILURE);
+ }
+ 
+-- 
+2.1.4
+

meta/recipes-connectivity/ofono/ofono_1.16.bb

@@ -4,6 +4,7 @@ SRC_URI  = "\
   ${KERNELORG_MIRROR}/linux/network/${BPN}/${BP}.tar.xz \
   file://ofono \
   file://Revert-test-Convert-to-Python-3.patch \
+  file://0001-backtrace-Disable-for-non-glibc-C-libraries.patch \
 "
 SRC_URI[md5sum] = "c31b5b55a1d68354bff771d3edf02829"
 SRC_URI[sha256sum] = "403b98dadece8bc804c0bd16b96d3db5a3bb0f84af64b3d67924da2d1a754b07"