From 80d90725f52a89da76fa35ef5fe058e2209e327b 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] (From OE-Core rev: 93bf8713d8e13c278543baea94fb8dad0cb80e49) (From OE-Core rev: b0e6a6048fa09dceac78bf8c46d484690ff5b098) Signed-off-by: Yuanjie Huang Signed-off-by: Mark Hatle Signed-off-by: Ross Burton Signed-off-by: Richard Purdie Signed-off-by: Armin Kuster Signed-off-by: Richard Purdie --- meta/recipes-core/glibc/glibc.inc | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'meta') 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 1.2.3-korg