#ifndef _ASM_POWERPC_BUG_H
#define _ASM_POWERPC_BUG_H
/*
* Define an illegal instr to trap on the bug.
* We don't use 0 because that marks the end of a function
* in the ELF ABI. That's "Boo Boo" in case you wonder...
*/
#define BUG_OPCODE .long 0x00b00b00 /* For asm */
#define BUG_ILLEGAL_INSTR "0x00b00b00" /* For BUG macro */
#ifndef __ASSEMBLY__
#ifdef __powerpc64__
#define BUG_TABLE_ENTRY ".llong"
#define BUG_TRAP_OP "tdnei"
#else
#define BUG_TABLE_ENTRY ".long"
#define BUG_TRAP_OP "twnei"
#endif /* __powerpc64__ */
struct bug_entry {
unsigned long bug_addr;
long line;
const char *file;
const char *function;
};
struct bug_entry *find_bug(unsigned long bugaddr);
/*
* 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
#ifdef CONFIG_BUG
#define BUG() do { \
__asm__ __volatile__( \
"1: twi 31,0,0\n" \
".section __bug_table,\"a\"\n" \
"\t"BUG_TABLE_ENTRY" 1b,%0,%1,%2\n" \
".previous" \
: : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \
} while (0)
#define BUG_ON(x) do { \
__asm__ __volatile__( \
"1: "BUG_TRAP_OP" %0,0\n" \
".section __bug_table,\"a\"\n" \
"\t"BUG_TABLE_ENTRY" 1b,%1,%2,%3\n" \
".previous" \
: : "r" ((long)(x)), "i" (__LINE__), \
"i" (__FILE__), "i" (__FUNCTION__)); \
} while (0)
#define WARN_ON(x) do { \
__asm__ __volatile__( \
"1: "BUG_TRAP_OP" %0,0\n" \
".section __bug_table,\"a\"\n" \
"\t"BUG_TABLE_ENTRY" 1b,%1,%2,%3\n" \
".previous" \
: : "r" ((long)(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
#endif /* CONFIG_BUG */
#endif /* __ASSEMBLY __ */
#include <asm-generic/bug.h>
#endif /* _ASM_POWERPC_BUG_H */
