compiler: add macro for GCC weak symbols

This lets us provide a default implementation of a symbol which targets can
override.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Anthony Liguori 2012-08-10 11:04:12 -05:00 committed by Luiz Capitulino
parent 01d3c80d68
commit 6ee373a003

View file

@ -45,6 +45,7 @@
# define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2)))
# define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
# endif
#define GCC_WEAK __attribute__((weak))
#else
#define GCC_ATTR /**/
#define GCC_FMT_ATTR(n, m)