arm-none-eabi-gcc 4.8 segmentation fault (ChibiOS-RT)

Question

When compiling a ChibiOS-RT project, I get the following error at link time (with arm-none-eabi-gcc 4.8):

../../../../test/rt/test.c: In function 'TestThread':
../../../../test/rt/test.c:314:7: internal compiler error: Segmentation fault: 11
 msg_t TestThread(void *p) {
   ^
libbacktrace could not find executable to open
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with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: arm-none-eabi-gcc returned 1 exit status
/usr/gcc-arm-none-eabi-4_8-2013q4/bin/../lib/gcc/arm-none-eabi/4.8.3/../../../../arm-none-eabi/bin/ld: lto-wrapper failed
collect2: error: ld returned 1 exit status
make: *** [build/ch.elf] Error 1

This does NOT occur with arm-none-eabi-gcc 4.7.

This is one of the OS build files, so I don't want to mess with it -- and I've never seen gcc itself encounter a segmentation fault while building. Additionally, it occurs when building any of project, even ones entirely unchanged from the root ChibiOS repository.

Any advice on diagnosing this problem?

Answer 1

GCC 4.8 does not support LTO and ggdb enabled together. Just disable one or another.

Try to configure your Makefile:

USE_LTO = no

or

USE_OPT = -O2 -fomit-frame-pointer -falign-functions=16

without -ggdb flag