From 93bf8713d8e13c278543baea94fb8dad0cb80e49 Mon Sep 17 00:00:00 2001 From: Yuanjie Huang Date: Fri, 9 Dec 2016 11:49:34 -0600 Subject: 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 Signed-off-by: Mark Hatle Signed-off-by: Ross Burton --- meta/recipes-core/glibc/glibc.inc | 6 ++++++ 1 file changed, 6 insertions(+) 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 +} -- cgit v1.2.3