[Bug target/38902] __builtin_strcpy doesn't work with -fstack-protector

[hjl dot tools at gmail dot com]

------- Comment #2 from hjl dot tools at gmail dot com  2009-01-18 01:43 -------
bash-3.2$ cat /tmp/x.c
extern void abort ();

int foo (const char *, const char *);

int main (void)
{
  char buffer[1024]="";
  __builtin_strcpy (buffer, "1234567890abcdefghijklmno");
  if (foo (buffer, "1234567890abcdefghijklmno"))
    abort ();
}
bash-3.2$ cat /tmp/y.c
int
foo (const char *x , const char * y)
{
  return __builtin_strcmp (x, y);
}
bash-3.2$ ./xgcc -B./ -O2 -m32 -c /tmp/y.c
bash-3.2$ ./xgcc -B./ -O2 -m32 -O2 -fstack-protector /tmp/x.c -c
bash-3.2$ ./xgcc -B./ -m32 x.o  y.o
bash-3.2$ ./a.out 
Aborted
bash-3.2$ 


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38902