------- Comment #16 from jakub at gcc dot gnu dot org 2010-08-16 11:16 -------
Re: #c12, the difference is because the source code is different.
In the first preprocessed source, restore_rt isn't hidden, in the latter it is.
So, in the first case (-fPIE) gcc can't assume __restore_rt is defined in the
same shared library or binary, in the latter case it can.
Shorter testcase is:
extern void foo (void) asm ("baz")
#ifdef HIDDEN
__attribute__((visibility ("hidden")))
#endif
;
void *bar (void)
{
return &foo;
}
asm (".text; .type baz, @function; baz: nop; .previous");
-fpie vs. -fpic -DHIDDEN, the only difference is again:
- movq b...@gotpcrel(%rip), %rax
+ leaq baz(%rip), %rax
So, if there is any bug, it is either on the assembler/ld side, or on the glibc
side or user side, compiling glibc in a way it was never meant to be compiled.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45286
