mirror of
https://github.com/torvalds/linux.git
synced 2025-12-07 20:06:24 +00:00
be2ba2fef1
Extend WARN_ON and BUG_ON style output from: WARNING: CPU: 0 PID: 0 at kernel/sched/core.c:8511 sched_init+0x20/0x410 to: WARNING: CPU: 0 PID: 0 at [idx < 0 && ptr] kernel/sched/core.c:8511 sched_init+0x20/0x410 Note that the output will be further reorganized later in this series. Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> # Rebased ancestor commits Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rich Felker <dalias@libc.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: linux-arch@vger.kernel.org Cc: linux-sh@vger.kernel.org Link: https://lore.kernel.org/r/20250515124644.2958810-15-mingo@kernel.org
122 lines
2.8 KiB
C
122 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __ASM_SH_BUG_H
|
|
#define __ASM_SH_BUG_H
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
#define TRAPA_BUG_OPCODE 0xc33e /* trapa #0x3e */
|
|
#define BUGFLAG_UNWINDER (1 << 1)
|
|
|
|
#ifdef CONFIG_GENERIC_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,\"aw\"\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,\"aw\"\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))); \
|
|
unreachable(); \
|
|
} while (0)
|
|
|
|
#define __WARN_FLAGS(cond_str, flags) \
|
|
do { \
|
|
__asm__ __volatile__ ( \
|
|
"1:\t.short %O0\n" \
|
|
_EMIT_BUG_ENTRY \
|
|
: \
|
|
: "n" (TRAPA_BUG_OPCODE), \
|
|
"i" (WARN_CONDITION_STR(cond_str) __FILE__), \
|
|
"i" (__LINE__), \
|
|
"i" (BUGFLAG_WARNING|(flags)), \
|
|
"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); \
|
|
})
|
|
|
|
#define UNWINDER_BUG() \
|
|
do { \
|
|
__asm__ __volatile__ ( \
|
|
"1:\t.short %O0\n" \
|
|
_EMIT_BUG_ENTRY \
|
|
: \
|
|
: "n" (TRAPA_BUG_OPCODE), \
|
|
"i" (__FILE__), \
|
|
"i" (__LINE__), \
|
|
"i" (BUGFLAG_UNWINDER), \
|
|
"i" (sizeof(struct bug_entry))); \
|
|
} while (0)
|
|
|
|
#define UNWINDER_BUG_ON(x) ({ \
|
|
int __ret_unwinder_on = !!(x); \
|
|
if (__builtin_constant_p(__ret_unwinder_on)) { \
|
|
if (__ret_unwinder_on) \
|
|
UNWINDER_BUG(); \
|
|
} else { \
|
|
if (unlikely(__ret_unwinder_on)) \
|
|
UNWINDER_BUG(); \
|
|
} \
|
|
unlikely(__ret_unwinder_on); \
|
|
})
|
|
|
|
#else
|
|
|
|
#define UNWINDER_BUG BUG
|
|
#define UNWINDER_BUG_ON BUG_ON
|
|
|
|
#endif /* CONFIG_GENERIC_BUG */
|
|
|
|
#include <asm-generic/bug.h>
|
|
|
|
struct pt_regs;
|
|
|
|
/* arch/sh/kernel/traps.c */
|
|
extern void die(const char *str, struct pt_regs *regs, long err) __attribute__ ((noreturn));
|
|
extern void die_if_kernel(const char *str, struct pt_regs *regs, long err);
|
|
extern void die_if_no_fixup(const char *str, struct pt_regs *regs, long err);
|
|
|
|
#endif /* __ASM_SH_BUG_H */
|