#include <asm/traps.h>
#include <asm/cacheflush.h>
-/*
- * This undefined instruction must be unique and
- * reserved solely for kprobes' use.
- */
-#define KPROBE_BREAKPOINT_INSTRUCTION 0xe7f001f8
-
#define MIN_STACK_SIZE(addr) \
min((unsigned long)MAX_STACK_SIZE, \
(unsigned long)current_thread_info() + THREAD_START_SP - (addr))
unsigned long addr = (unsigned long)p->addr;
int is;
- if (addr & 0x3)
+ if (addr & 0x3 || in_exception_text(addr))
return -EINVAL;
insn = *p->addr;
return -ENOMEM;
for (is = 0; is < MAX_INSN_SIZE; ++is)
p->ainsn.insn[is] = tmp_insn[is];
- flush_insns(&p->ainsn.insn, MAX_INSN_SIZE);
+ flush_insns(p->ainsn.insn, MAX_INSN_SIZE);
break;
case INSN_GOOD_NO_SLOT: /* instruction doesn't need insn slot */
}
}
-static int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr)
+int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr)
{
kprobe_handler(regs);
return 0;
return 0;
}
+int __kprobes arch_trampoline_kprobe(struct kprobe *p)
+{
+ return 0;
+}
+
static struct undef_hook kprobes_break_hook = {
.instr_mask = 0xffffffff,
.instr_val = KPROBE_BREAKPOINT_INSTRUCTION,