https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77917
Bug ID: 77917
Summary: undefined reference to '__aeabi_unwind_cpp_pr0' during
ARM bootstrap
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: tulipawn at gmail dot com
Target Milestone: ---
In case that's the culprit, I had the CFLAGS I customarily use, including
-flto, present in the environment before starting the bootstrap (gcc4 ABI,
using 4.9):
checking size of long long... configure: error: in
`/home/guest/gcc-svn-master/build/gcc':
configure: error: cannot compute sizeof (long long)
See `config.log' for more details.
make[2]: *** [configure-stage2-gcc] Error 77
configure:6075: checking size of long long
configure:6080: /home/guest/gcc-svn-master/build/./prev-gcc/xg++
-B/home/guest/gcc-svn-master/build/./prev-gcc/ -B/usr/gcc7/arm-linux-gnue
abihf/bin/ -nostdinc++
-B/home/guest/gcc-svn-master/build/prev-arm-linux-gnueabihf/libstdc++-v3/src/.libs
-B/home/guest/gcc-svn-master/buil
d/prev-arm-linux-gnueabihf/libstdc++-v3/libsupc++/.libs
-I/home/guest/gcc-svn-master/build/prev-arm-linux-gnueabihf/libstdc++-v3/include/a
rm-linux-gnueabihf
-I/home/guest/gcc-svn-master/build/prev-arm-linux-gnueabihf/libstdc++-v3/include
-I/home/guest/gcc-svn-master/libstdc+
+-v3/libsupc++
-L/home/guest/gcc-svn-master/build/prev-arm-linux-gnueabihf/libstdc++-v3/src/.libs
-L/home/guest/gcc-svn-master/build/prev-a
rm-linux-gnueabihf/libstdc++-v3/libsupc++/.libs -o conftest -g -O2 -gtoggle
-static-libstdc++ -static-libgcc conftest.cpp >&5
/tmp/ccFBuI5b.o(.ARM.exidx.text.startup+0x0): error: undefined reference to
'__aeabi_unwind_cpp_pr0'
collect2: error: ld returned 1 exit status
Should LTO be avoided early on?
