]> code.ossystems Code Review - openembedded-core.git/commit
glibc: Enable backtrace from abort on ARM
authorYuanjie Huang <yuanjie.huang@windriver.com>
Fri, 9 Dec 2016 17:49:34 +0000 (11:49 -0600)
committerRichard Purdie <richard.purdie@linuxfoundation.org>
Wed, 11 Jan 2017 11:46:52 +0000 (11:46 +0000)
commitb0e6a6048fa09dceac78bf8c46d484690ff5b098
treee4cf650d735f7f1154313dd283298a60bde47af2
parent5a19335f0f1d763a066a8c9ead23bb332e229f93
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)

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>
meta/recipes-core/glibc/glibc.inc