Source: openssh
Version: 1:9.7p1-2
Severity: important
Justification: FTBFS on d-ports arch
Tags: ftbfs
X-Debbugs-Cc: t...@mirbsd.de, debian-...@lists.debian.org
On m68k, gcc-13 currently ICEs when -fzero-call-used-regs=used is
used (see #1066891) in moduli.c, packet.c, etc. but the configury
detects it and so it gets used. The upstream GCC bug comments say
there is no plan to backport the possible fix to releases, but it
has a short reproducer by doko:
$ cat moduli.i
int snprintf_eta;
double snprintf_time_per_line;
int snprintf(char *, int, char *, ...) {
snprintf_eta = snprintf_time_per_line;
}
$ m68k-linux-gnu-gcc -c -O2 -fzero-call-used-regs=used -fPIE moduli.i
during RTL pass: zero_call_used_regs
moduli.i: In function ‘snprintf’:
moduli.i:5:1: internal compiler error: in change_address_1, at emit-rtl.cc:2287
Maybe this could be used in the configure script?
I can confirm that appending…
int snprintf_eta;
double snprintf_time_per_line;
int snprintf(char *str, size_t size, const char *format, ...) {
snprintf_eta = snprintf_time_per_line;
}
… (lightly changed from the above) to the program from
m4/openssh.m4 OSSH_COMPILER_FLAG_TEST_PROGRAM fails with:
(pbuild-15711)root@ara2:/tmp# gcc -O2 -fPIE -fno-strict-aliasing
-fzero-call-used-regs=used t.c
during RTL pass: zero_call_used_regs
t.c: In function 'snprintf':
t.c:51:1: internal compiler error: in change_address_1, at emit-rtl.cc:2287
51 | }
| ^
[…]
Alternatively, just hardcode disabling this flag on m68k for now,
which we’ll eventually have to revert once GCC is on a fixed release
(14 probably).
Thanks in advance!
