Viewing file:  bug.h (1.75 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
#ifndef __ASM_SH_BUG_H
#define __ASM_SH_BUG_H
#define TRAPA_BUG_OPCODE 0xc33e /* trapa #0x3e */
#ifdef CONFIG_BUG
#define HAVE_ARCH_BUG
#define HAVE_ARCH_WARN_ON
/**
* _EMIT_BUG_ENTRY
* %1 - __FILE__
* %2 - __LINE__
* %3 - trap type
* %4 - sizeof(struct bug_entry)
*
* The trapa opcode itself sits in %0.
* The %O notation is used to avoid # generation.
*
* The offending file and line are encoded in the __bug_table section.
*/
#ifdef CONFIG_DEBUG_BUGVERBOSE
#define _EMIT_BUG_ENTRY \
"\t.pushsection __bug_table,\"a\"\n" \
"2:\t.long 1b, %O1\n" \
"\t.short %O2, %O3\n" \
"\t.org 2b+%O4\n" \
"\t.popsection\n"
#else
#define _EMIT_BUG_ENTRY \
"\t.pushsection __bug_table,\"a\"\n" \
"2:\t.long 1b\n" \
"\t.short %O3\n" \
"\t.org 2b+%O4\n" \
"\t.popsection\n"
#endif
#define BUG() \
do { \
__asm__ __volatile__ ( \
"1:\t.short %O0\n" \
_EMIT_BUG_ENTRY \
: \
: "n" (TRAPA_BUG_OPCODE), \
"i" (__FILE__), \
"i" (__LINE__), "i" (0), \
"i" (sizeof(struct bug_entry))); \
} while (0)
#define __WARN() \
do { \
__asm__ __volatile__ ( \
"1:\t.short %O0\n" \
_EMIT_BUG_ENTRY \
: \
: "n" (TRAPA_BUG_OPCODE), \
"i" (__FILE__), \
"i" (__LINE__), \
"i" (BUGFLAG_WARNING), \
"i" (sizeof(struct bug_entry))); \
} while (0)
#define WARN_ON(x) ({ \
int __ret_warn_on = !!(x); \
if (__builtin_constant_p(__ret_warn_on)) { \
if (__ret_warn_on) \
__WARN(); \
} else { \
if (unlikely(__ret_warn_on)) \
__WARN(); \
} \
unlikely(__ret_warn_on); \
})
struct pt_regs;
/* arch/sh/kernel/traps.c */
void handle_BUG(struct pt_regs *);
#endif /* CONFIG_BUG */
#include <asm-generic/bug.h>
#endif /* __ASM_SH_BUG_H */
|