Bill Allombert wrote:
ballombe@aranym:~/pari-2.3.1$ cat config/ansi.c
int main(int argc, char **argv){ return 0; }
ballombe@aranym:~/pari-2.3.1$ cc config/ansi.c
config/ansi.c: In function âmainâ:
config/ansi.c:1: internal compiler error: Illegal instruction
The system run sid with cc being gcc-4.1.1-14. The strange thing is that g++ config/ansi.c works fine. (Crest does not show this problem of course)
The gcc-4.1.1-14 does not compile anything. It always crashes here (strace output):
7314 open("/tmp/ccoNE7AY.s", O_RDWR|O_CREAT|O_TRUNC, 0666) = 3
7314 fstat64(3, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
7314 old_mmap(NULL, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xc033a000
7314 open("a.gcda", O_RDWR) = -1 ENOENT (No such file or
directory)
7314 --- SIGILL (Illegal instruction) @ 0 (0) ---
g++ does this:
7390 open("/tmp/ccgruVK5.s", O_RDWR|O_CREAT|O_TRUNC, 0666) = 3
7390 fstat64(3, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
7390 old_mmap(NULL, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xc033a000
7390 old_mmap(NULL, 16384, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xc033c000
7390 open("a.gcda", O_RDWR) = -1 ENOENT (No such file or
directory)
7390 old_mmap(NULL, 262144, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xc0340000
7390 write(3, "#NO_APP\n\t.file\t\"a.c\"\n\t.text\n\t.al"..., 298) = 298 7390 close(3) = 0So g++ before opening the "a.gcda" file calls one more mmap than the gcc before the SIGSEGV. Does it mean anything? I don't feel like digging in gcc source code.
I hope this problem appears on real m68k hardware - perhaps it's kernel or something else that's different than on crest and could cause this.
Petr