https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91078
Bug ID: 91078
Summary: [10 regression] All LTO tests FAIL: SIGBUS in lto1
(lto_file_finalize)
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: marxin at gcc dot gnu.org
Target Milestone: ---
Host: sparc-sun-solaris2.11
Target: sparc-sun-solaris2.11
Build: sparc-sun-solaris2.11
Between 20190702 (r272944) and 20190703 (r273009), all LTO tests started to
FAIL
on Solaris/SPARC. It boils down to
$ cat /var/tmp//ccqNGG1b
20010124-1.o
20010124-1-lib.o
main.o
$ lto1 -quiet @/var/tmp//ccqNGG1b -o 20010124-1.s
[...]
lto1: internal compiler error: Bus Error
0x9d1597 crash_signal
/vol/gcc/src/hg/trunk/local/gcc/toplev.c:326
0x3fea74 lto_file_finalize
/vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2202
0x3fea74 lto_create_files_from_ids
/vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2225
0x3fea74 lto_file_read
/vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2279
0x3fea74 read_cgraph_and_symbols(unsigned int, char const**)
/vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2731
0x3dd10b lto_main()
/vol/gcc/src/hg/trunk/local/gcc/lto/lto.c:616
Thread 2 received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1 (LWP 1)]
lto_file_finalize (file=0x16a6370, file_data=0xfa886050)
at /vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2202
2202 file_data->lto_section_header = *(const lto_section *)data;
(gdb) where
#0 lto_file_finalize (file=0x16a6370, file_data=0xfa886050)
at /vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2202
#1 lto_create_files_from_ids (count=<synthetic pointer>,
file_data=0xfa886050, file=0x16a6370)
at /vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2225
#2 lto_file_read (count=<synthetic pointer>, resolution_file=0x0,
file=<optimized out>)
at /vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2279
#3 read_cgraph_and_symbols (nfiles=<optimized out>, fnames=<optimized out>)
at /vol/gcc/src/hg/trunk/local/gcc/lto/lto-common.c:2731
#4 0x003dd10c in lto_main () at /vol/gcc/src/hg/trunk/local/gcc/lto/lto.c:616
#5 0x009d1610 in compile_file ()
at /vol/gcc/src/hg/trunk/local/gcc/toplev.c:456
#6 0x009d4128 in do_compile ()
at /vol/gcc/src/hg/trunk/local/gcc/toplev.c:2209
#7 toplev::main (this=0xffbfe4de, argc=<optimized out>, argv=<optimized out>)
at /vol/gcc/src/hg/trunk/local/gcc/toplev.c:2344
#8 0x012f11ac in main (argc=27, argv=0xffbfe544)
at /vol/gcc/src/hg/trunk/local/gcc/main.c:39
(gdb) p/x data
$1 = 0xfb9d8429
gdb showing this as SIGSEGV is a gdb bug.
This most likely affects all strict-alignment targets.
