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sh: kprobes: Use trapa #0x3a for breakpoint trap.

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Not all parts support trapa #0xff, so use something within the debug trap
range that's accessible on all parts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2008-09-08 18:10:10 +09:00
parent 037c10a612
commit 174b5c9923
2 changed files with 2 additions and 3 deletions
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2
arch/sh/include/asm/kprobes.h
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@ -7,7 +7,7 @@
#include <linux/ptrace.h> #include <linux/ptrace.h>
typedef u16 kprobe_opcode_t; typedef u16 kprobe_opcode_t;
#define BREAKPOINT_INSTRUCTION 0xc3ff #define BREAKPOINT_INSTRUCTION 0xc33a
#define MAX_INSN_SIZE 16 #define MAX_INSN_SIZE 16
#define MAX_STACK_SIZE 64 #define MAX_STACK_SIZE 64

3
arch/sh/kernel/kprobes.c
View File

@ -525,8 +525,7 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
void __kprobes jprobe_return(void) void __kprobes jprobe_return(void)
{ {
__asm("trapa #-1\n\t" "jprobe_return_end:\n\t" "nop\n\t"); asm volatile ("trapa #0x3a\n\t" "jprobe_return_end:\n\t" "nop\n\t");
} }
int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)