mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 21:21:41 +00:00
8854700115
The new kgdb architecture specific handler registers and unregisters dynamically for exceptions depending on when you configure a kgdb I/O driver. Aside from initializing the exceptions earlier in the boot process, kgdb should have no impact on a device when it is compiled in so long as an I/O module is not configured for use. There have been quite a number of contributors during the existence of this patch (see arch/mips/kernel/kgdb.c). Most recently Jason re-wrote the mips kgdb logic to use the die notification handlers. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
#ifndef __ASM_KGDB_H_
|
|
#define __ASM_KGDB_H_
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <asm/sgidefs.h>
|
|
|
|
#if (_MIPS_ISA == _MIPS_ISA_MIPS1) || (_MIPS_ISA == _MIPS_ISA_MIPS2) || \
|
|
(_MIPS_ISA == _MIPS_ISA_MIPS32)
|
|
|
|
#define KGDB_GDB_REG_SIZE 32
|
|
|
|
#elif (_MIPS_ISA == _MIPS_ISA_MIPS3) || (_MIPS_ISA == _MIPS_ISA_MIPS4) || \
|
|
(_MIPS_ISA == _MIPS_ISA_MIPS64)
|
|
|
|
#ifdef CONFIG_32BIT
|
|
#define KGDB_GDB_REG_SIZE 32
|
|
#else /* CONFIG_CPU_32BIT */
|
|
#define KGDB_GDB_REG_SIZE 64
|
|
#endif
|
|
#else
|
|
#error "Need to set KGDB_GDB_REG_SIZE for MIPS ISA"
|
|
#endif /* _MIPS_ISA */
|
|
|
|
#define BUFMAX 2048
|
|
#if (KGDB_GDB_REG_SIZE == 32)
|
|
#define NUMREGBYTES (90*sizeof(u32))
|
|
#define NUMCRITREGBYTES (12*sizeof(u32))
|
|
#else
|
|
#define NUMREGBYTES (90*sizeof(u64))
|
|
#define NUMCRITREGBYTES (12*sizeof(u64))
|
|
#endif
|
|
#define BREAK_INSTR_SIZE 4
|
|
#define CACHE_FLUSH_IS_SAFE 0
|
|
|
|
extern void arch_kgdb_breakpoint(void);
|
|
extern int kgdb_early_setup;
|
|
extern void *saved_vectors[32];
|
|
extern void handle_exception(struct pt_regs *regs);
|
|
extern void breakinst(void);
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __ASM_KGDB_H_ */
|