From: Heiko Carstens Date: Wed, 12 Jul 2006 14:39:42 +0000 (+0200) Subject: [S390] __builtin_trap() and gcc version. X-Git-Tag: v2.6.18-rc2~112^2~7 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f4a10b211ddb71d6b4e423fd529468691dec5cca;p=linux-2.6 [S390] __builtin_trap() and gcc version. __builtin_trap() has the archictecture defined backend in gcc since gcc 3.3. To make sure the kernel builds with gcc 3.2 as well, use the old style BUG() statement if compiled with older gcc versions. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- diff --git a/include/asm-s390/bug.h b/include/asm-s390/bug.h index 7ddaa05b98..8768983639 100644 --- a/include/asm-s390/bug.h +++ b/include/asm-s390/bug.h @@ -5,9 +5,18 @@ #ifdef CONFIG_BUG +static inline __attribute__((noreturn)) void __do_illegal_op(void) +{ +#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) + __builtin_trap(); +#else + asm volatile(".long 0"); +#endif +} + #define BUG() do { \ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \ - __builtin_trap(); \ + __do_illegal_op(); \ } while (0) #define HAVE_ARCH_BUG