diff options
Diffstat (limited to 'src/target/aarch64.c')
| -rw-r--r-- | src/target/aarch64.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/src/target/aarch64.c b/src/target/aarch64.c index 4d3d981..3918b15 100644 --- a/src/target/aarch64.c +++ b/src/target/aarch64.c @@ -1263,9 +1263,32 @@ static int aarch64_set_breakpoint(struct target *target, brp_list[brp_i].value); } else if (breakpoint->type == BKPT_SOFT) { + uint32_t opcode; uint8_t code[4]; - buf_set_u32(code, 0, 32, armv8_opcode(armv8, ARMV8_OPC_HLT)); + if (armv8_dpm_get_core_state(&armv8->dpm) == ARM_STATE_AARCH64) { + opcode = ARMV8_HLT(11); + + if (breakpoint->length != 4) + LOG_ERROR("bug: breakpoint length should be 4 in AArch64 mode"); + } else { + /** + * core_state is ARM_STATE_ARM + * in that case the opcode depends on breakpoint length: + * - if length == 4 => A32 opcode + * - if length == 2 => T32 opcode + * - if length == 3 => T32 opcode (refer to gdb doc : ARM-Breakpoint-Kinds) + * in that case the length should be changed from 3 to 4 bytes + **/ + opcode = (breakpoint->length == 4) ? ARMV8_HLT_A1(11) : + (uint32_t) (ARMV8_HLT_T1(11) | ARMV8_HLT_T1(11) << 16); + + if (breakpoint->length == 3) + breakpoint->length = 4; + } + + buf_set_u32(code, 0, 32, opcode); + retval = target_read_memory(target, breakpoint->address & 0xFFFFFFFFFFFFFFFE, breakpoint->length, 1, |