https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92946
Bug ID: 92946
Summary: [9 Regression] [SH] Native GCC crashes when invoking
with -m4 -m4-nofpu -pipe
Product: gcc
Version: 9.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: glaubitz at physik dot fu-berlin.de
CC: gcc-bugzilla at mkarcher dot dialup.fu-berlin.de,
jrtc27 at jrtc27 dot com, oleg.e...@t-online.de
Target Milestone: ---
Target: sh*-*-*
In Debian, kernel builds have been failing for a while now on sh4 due to gcc-9
crashing when run natively on sh4:
root@tirpitz:~> gcc-9 -m4 -m4-nofpu -pipe -c -x c /dev/null
malloc(): corrupted top size
Aborted
root@tirpitz:~>
See
https://buildd.debian.org/status/fetch.php?pkg=linux&arch=sh4&ver=5.3.15-1&stamp=1575738446&raw=0
for a log file.
The issue does not reproduce on earlier GCC versions:
root@tirpitz:~> gcc-5 -m4 -m4-nofpu -pipe -c -x c /dev/null
root@tirpitz:~> gcc-6 -m4 -m4-nofpu -pipe -c -x c /dev/null
root@tirpitz:~> gcc-7 -m4 -m4-nofpu -pipe -c -x c /dev/null
root@tirpitz:~> gcc-8 -m4 -m4-nofpu -pipe -c -x c /dev/null
root@tirpitz:~>
