/* Decode instructions */
addr = paddr - offset;
while (addr < paddr) {
+ int ret;
+
/*
* Check if the instruction has been modified by another
* kprobe, in which case we replace the breakpoint by the
__addr = recover_probed_instruction(buf, addr);
if (!__addr)
return 0;
- kernel_insn_init(&insn, (void *)__addr, MAX_INSN_SIZE);
- insn_get_length(&insn);
+
+ ret = insn_decode(&insn, (void *)__addr, MAX_INSN_SIZE, INSN_MODE_KERN);
+ if (ret < 0)
+ return 0;
/*
* Another debugging subsystem might insert this breakpoint.
int __copy_instruction(u8 *dest, u8 *src, u8 *real, struct insn *insn)
{
kprobe_opcode_t buf[MAX_INSN_SIZE];
- unsigned long recovered_insn =
- recover_probed_instruction(buf, (unsigned long)src);
+ unsigned long recovered_insn = recover_probed_instruction(buf, (unsigned long)src);
+ int ret;
if (!recovered_insn || !insn)
return 0;
MAX_INSN_SIZE))
return 0;
- kernel_insn_init(insn, dest, MAX_INSN_SIZE);
- insn_get_length(insn);
+ ret = insn_decode(insn, dest, MAX_INSN_SIZE, INSN_MODE_KERN);
+ if (ret < 0)
+ return 0;
/* We can not probe force emulate prefixed instruction */
if (insn_has_emulate_prefix(insn))
addr = paddr - offset;
while (addr < paddr - offset + size) { /* Decode until function end */
unsigned long recovered_insn;
+ int ret;
+
if (search_exception_tables(addr))
/*
* Since some fixup code will jumps into this function,
recovered_insn = recover_probed_instruction(buf, addr);
if (!recovered_insn)
return 0;
- kernel_insn_init(&insn, (void *)recovered_insn, MAX_INSN_SIZE);
- insn_get_length(&insn);
+
+ ret = insn_decode(&insn, (void *)recovered_insn, MAX_INSN_SIZE, INSN_MODE_KERN);
+ if (ret < 0)
+ return 0;
+
/*
* In the case of detecting unknown breakpoint, this could be
* a padding INT3 between functions. Let's check that all the