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authorYuanjie Huang <yuanjie.huang@windriver.com>2016-12-09 11:49:34 -0600
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-12-13 22:47:32 +0000
commit93bf8713d8e13c278543baea94fb8dad0cb80e49 (patch)
treefeb3701bc7e5d0f1d098487904061e30f147058b
parentac7a905b18acb8bd9b2412b6682afbe1d7e18d7b (diff)
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glibc: Enable backtrace from abort on ARM
ARM stack frames for abort and raise were limited to the the actual abort and raise call, such as: Obtained 4 stack frames. ./test-app(print_trace+0x1c) [0x10a08] ./test-app() [0x10b3c] /lib/libc.so.6(__default_sa_restorer+0) [0x4adae1e0] /lib/libc.so.6(gsignal+0xa0) [0x4adacf74] This is not terribly useful when trying to figure out what function may have called called the abort, especially when using pthreads. After the change the trace would now look like: Obtained 8 stack frames. ./test-app(print_trace+0x1c) [0x10a08] ./test-app() [0x10b3c] /lib/libc.so.6(__default_sa_restorer+0) [0x4befe1e0] /lib/libc.so.6(gsignal+0xa0) [0x4befcf74] /lib/libc.so.6(abort+0x134) [0x4befe358] ./test-app(dummy_function+0x50) [0x10adc] ./test-app(main+0xd4) [0x10c24] /lib/libc.so.6(__libc_start_main+0x114) [0x4bee7a58] Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com> Signed-off-by: Mark Hatle <mark.hatle@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
-rw-r--r--meta/recipes-core/glibc/glibc.inc6
1 files changed, 6 insertions, 0 deletions
diff --git a/meta/recipes-core/glibc/glibc.inc b/meta/recipes-core/glibc/glibc.inc
index e85c7044a0..7bae0e9554 100644
--- a/meta/recipes-core/glibc/glibc.inc
+++ b/meta/recipes-core/glibc/glibc.inc
@@ -78,3 +78,9 @@ do_configure_prepend() {
}
GLIBC_ADDONS ?= "nptl,libidn"
+
+# Enable backtrace from abort()
+do_configure_append_arm () {
+ echo "CFLAGS-abort.c = -fasynchronous-unwind-tables" >> ${B}/configparms
+ echo "CFLAGS-raise.c = -fasynchronous-unwind-tables" >> ${B}/configparms
+}