Commit f4a10b21 authored Jul 12, 2006 by Heiko Carstens Committed by Martin Schwidefsky Jul 12, 2006

[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 <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 7c3dec06

include/asm-s390/bug.h

+10 −1

Original line number	Diff line number	Diff line
		@@ -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