kernel-ark/include/asm-ppc/bug.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

56 lines
1.3 KiB
C

#ifndef _PPC_BUG_H
#define _PPC_BUG_H
struct bug_entry {
unsigned long bug_addr;
int line;
const char *file;
const char *function;
};
/*
* If this bit is set in the line number it means that the trap
* is for WARN_ON rather than BUG or BUG_ON.
*/
#define BUG_WARNING_TRAP 0x1000000
#define BUG() do { \
__asm__ __volatile__( \
"1: twi 31,0,0\n" \
".section __bug_table,\"a\"\n\t" \
" .long 1b,%0,%1,%2\n" \
".previous" \
: : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \
} while (0)
#define BUG_ON(x) do { \
if (!__builtin_constant_p(x) || (x)) { \
__asm__ __volatile__( \
"1: twnei %0,0\n" \
".section __bug_table,\"a\"\n\t" \
" .long 1b,%1,%2,%3\n" \
".previous" \
: : "r" (x), "i" (__LINE__), "i" (__FILE__), \
"i" (__FUNCTION__)); \
} \
} while (0)
#define WARN_ON(x) do { \
if (!__builtin_constant_p(x) || (x)) { \
__asm__ __volatile__( \
"1: twnei %0,0\n" \
".section __bug_table,\"a\"\n\t" \
" .long 1b,%1,%2,%3\n" \
".previous" \
: : "r" (x), "i" (__LINE__ + BUG_WARNING_TRAP), \
"i" (__FILE__), "i" (__FUNCTION__)); \
} \
} while (0)
#define HAVE_ARCH_BUG
#define HAVE_ARCH_BUG_ON
#define HAVE_ARCH_WARN_ON
#include <asm-generic/bug.h>
#endif