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authorYuanjie Huang <yuanjie.huang@windriver.com>2016-12-09 11:49:34 -0600
committerRichard Purdie <richard.purdie@linuxfoundation.org>2017-01-11 17:21:45 +0000
commit80d90725f52a89da76fa35ef5fe058e2209e327b (patch)
tree3643b87ff4bd05116eed6b109b9800f358dc7813 /meta
parent389d0a02d7ab188941f107bb18d441d536107227 (diff)
downloadopenembedded-core-contrib-80d90725f52a89da76fa35ef5fe058e2209e327b.tar.gz
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] (From OE-Core rev: 93bf8713d8e13c278543baea94fb8dad0cb80e49) (From OE-Core rev: b0e6a6048fa09dceac78bf8c46d484690ff5b098) 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> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster808@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta')
-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
+}