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_
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#define __ASM_KGDB_H_
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#ifdef __KERNEL__
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#include <asm/sgidefs.h>
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#if (_MIPS_ISA == _MIPS_ISA_MIPS1) || (_MIPS_ISA == _MIPS_ISA_MIPS2) || \
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(_MIPS_ISA == _MIPS_ISA_MIPS32)
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#define KGDB_GDB_REG_SIZE 32
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#elif (_MIPS_ISA == _MIPS_ISA_MIPS3) || (_MIPS_ISA == _MIPS_ISA_MIPS4) || \
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(_MIPS_ISA == _MIPS_ISA_MIPS64)
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#ifdef CONFIG_32BIT
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#define KGDB_GDB_REG_SIZE 32
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#else /* CONFIG_CPU_32BIT */
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#define KGDB_GDB_REG_SIZE 64
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#endif
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#else
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#error "Need to set KGDB_GDB_REG_SIZE for MIPS ISA"
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#endif /* _MIPS_ISA */
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#define BUFMAX 2048
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#if (KGDB_GDB_REG_SIZE == 32)
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#define NUMREGBYTES (90*sizeof(u32))
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#define NUMCRITREGBYTES (12*sizeof(u32))
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#else
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#define NUMREGBYTES (90*sizeof(u64))
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#define NUMCRITREGBYTES (12*sizeof(u64))
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#endif
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#define BREAK_INSTR_SIZE 4
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#define CACHE_FLUSH_IS_SAFE 0
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extern void arch_kgdb_breakpoint(void);
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extern int kgdb_early_setup;
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extern void *saved_vectors[32];
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extern void handle_exception(struct pt_regs *regs);
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extern void breakinst(void);
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#endif /* __KERNEL__ */
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#endif /* __ASM_KGDB_H_ */
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