arm64: Clean up usage of the dtrace invop handler

- Don't consume the breakpoint if all invop handlers returned a non-zero
  value.
- Fix style nits.

MFC after:	2 weeks
Sponsored by:	Innovate UK

This commit is contained in:

Mark Johnston

2025-01-25 16:17:03 +00:00

parent 096a5c6cd2

commit 853cd87234

1 changed files with 3 additions and 4 deletions

									
										sys/arm64/arm64/trap.c
									
		+3
		-4
	
												View File
												
				@@ -548,11 +548,10 @@ do_el1h_sync(struct thread *td, struct trapframe *frame)

						break;

					case EXCP_BRK:

				#ifdef KDTRACE_HOOKS

						if ((esr & ESR_ELx_ISS_MASK) == 0x40d && \

						    dtrace_invop_jump_addr != 0) {

							dtrace_invop_jump_addr(frame);

						if ((esr & ESR_ELx_ISS_MASK) == 0x40d /* BRK_IMM16_VAL */ &&

						    dtrace_invop_jump_addr != NULL &&

						    dtrace_invop_jump_addr(frame) == 0)

							break;

						}

				#endif

				#ifdef KDB

						kdb_trap(exception, 0, frame);