* A bug (?) with inline functions at O0: undefined reference
@ 2015-03-06 16:13 Ilya Verbin
2015-03-06 16:21 ` Marek Polacek
2015-03-06 16:21 ` Marc Glisse
0 siblings, 2 replies; 3+ messages in thread
From: Ilya Verbin @ 2015-03-06 16:13 UTC (permalink / raw)
To: gcc
Hi All,
I've discovered a strange behaviour on trunk gcc, here is the reproducer:
inline int foo ()
{
return 0;
}
int main ()
{
return foo ();
}
$ gcc main.c
/tmp/ccD1LeXo.o: In function `main':
main.c:(.text+0xa): undefined reference to `foo'
collect2: error: ld returned 1 exit status
Is this a bug? If yes, is it known?
GCC 4.8.3 works fine though.
Thanks,
-- Ilya
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: A bug (?) with inline functions at O0: undefined reference
2015-03-06 16:13 A bug (?) with inline functions at O0: undefined reference Ilya Verbin
@ 2015-03-06 16:21 ` Marek Polacek
2015-03-06 16:21 ` Marc Glisse
1 sibling, 0 replies; 3+ messages in thread
From: Marek Polacek @ 2015-03-06 16:21 UTC (permalink / raw)
To: Ilya Verbin; +Cc: gcc
On Fri, Mar 06, 2015 at 07:12:48PM +0300, Ilya Verbin wrote:
> Hi All,
>
> I've discovered a strange behaviour on trunk gcc, here is the reproducer:
>
> inline int foo ()
> {
> return 0;
> }
>
> int main ()
> {
> return foo ();
> }
>
> $ gcc main.c
> /tmp/ccD1LeXo.o: In function `main':
> main.c:(.text+0xa): undefined reference to `foo'
> collect2: error: ld returned 1 exit status
>
> Is this a bug? If yes, is it known?
> GCC 4.8.3 works fine though.
Not a bug, just different inline semantics now that the default is
gnu11. See https://gcc.gnu.org/gcc-5/porting_to.html for more info.
Marek
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: A bug (?) with inline functions at O0: undefined reference
2015-03-06 16:13 A bug (?) with inline functions at O0: undefined reference Ilya Verbin
2015-03-06 16:21 ` Marek Polacek
@ 2015-03-06 16:21 ` Marc Glisse
1 sibling, 0 replies; 3+ messages in thread
From: Marc Glisse @ 2015-03-06 16:21 UTC (permalink / raw)
To: Ilya Verbin; +Cc: gcc
On Fri, 6 Mar 2015, Ilya Verbin wrote:
> I've discovered a strange behaviour on trunk gcc, here is the reproducer:
>
> inline int foo ()
> {
> return 0;
> }
>
> int main ()
> {
> return foo ();
> }
>
> $ gcc main.c
> /tmp/ccD1LeXo.o: In function `main':
> main.c:(.text+0xa): undefined reference to `foo'
> collect2: error: ld returned 1 exit status
>
> Is this a bug? If yes, is it known?
> GCC 4.8.3 works fine though.
Not a bug, that's what inline means in C99 and later.
--
Marc Glisse
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-03-06 16:13 A bug (?) with inline functions at O0: undefined reference Ilya Verbin
2015-03-06 16:21 ` Marek Polacek
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