From e2e358d7ecdf3ba980d39f9bc1cc12aaf70a5d78 Mon Sep 17 00:00:00 2001 From: jhb Date: Mon, 5 Oct 2015 21:36:53 +0000 Subject: Include additional info in ptrace(2) KTR traces: - The new PC value and signal passed to PT_CONTINUE, PT_DETACH, PT_SYSCALL, and PT_TO_SC[EX]. - The system call code returned via PT_LWPINFO. MFC after: 1 week --- sys/kern/sys_process.c | 41 +++++++++++++++++++++++------------------ 1 file changed, 23 insertions(+), 18 deletions(-) (limited to 'sys/kern/sys_process.c') diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c index eb50acd..e80ff3c 100644 --- a/sys/kern/sys_process.c +++ b/sys/kern/sys_process.c @@ -928,25 +928,29 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data) switch (req) { case PT_TO_SCE: p->p_stops |= S_PT_SCE; - CTR2(KTR_PTRACE, - "PT_TO_SCE: pid %d, stops = %#x", p->p_pid, - p->p_stops); + CTR4(KTR_PTRACE, + "PT_TO_SCE: pid %d, stops = %#x, PC = %#lx, sig = %d", + p->p_pid, p->p_stops, + (u_long)(uintfptr_t)addr, data); break; case PT_TO_SCX: p->p_stops |= S_PT_SCX; - CTR2(KTR_PTRACE, - "PT_TO_SCX: pid %d, stops = %#x", p->p_pid, - p->p_stops); + CTR4(KTR_PTRACE, + "PT_TO_SCX: pid %d, stops = %#x, PC = %#lx, sig = %d", + p->p_pid, p->p_stops, + (u_long)(uintfptr_t)addr, data); break; case PT_SYSCALL: p->p_stops |= S_PT_SCE | S_PT_SCX; - CTR2(KTR_PTRACE, - "PT_SYSCALL: pid %d, stops = %#x", p->p_pid, - p->p_stops); + CTR4(KTR_PTRACE, + "PT_SYSCALL: pid %d, stops = %#x, PC = %#lx, sig = %d", + p->p_pid, p->p_stops, + (u_long)(uintfptr_t)addr, data); break; case PT_CONTINUE: - CTR1(KTR_PTRACE, - "PT_CONTINUE: pid %d", p->p_pid); + CTR3(KTR_PTRACE, + "PT_CONTINUE: pid %d, PC = %#lx, sig = %d", + p->p_pid, (u_long)(uintfptr_t)addr, data); break; } break; @@ -969,11 +973,12 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data) proc_reparent(p, pp); if (pp == initproc) p->p_sigparent = SIGCHLD; - CTR2(KTR_PTRACE, - "PT_DETACH: pid %d reparented to pid %d", - p->p_pid, pp->p_pid); + CTR3(KTR_PTRACE, + "PT_DETACH: pid %d reparented to pid %d, sig %d", + p->p_pid, pp->p_pid, data); } else - CTR1(KTR_PTRACE, "PT_DETACH: pid %d", p->p_pid); + CTR2(KTR_PTRACE, "PT_DETACH: pid %d, sig %d", + p->p_pid, data); p->p_oppid = 0; p->p_stops = 0; @@ -1226,10 +1231,10 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data) if (wrap32) ptrace_lwpinfo_to32(pl, pl32); #endif - CTR5(KTR_PTRACE, - "PT_LWPINFO: tid %d (pid %d) event %d flags %#x child pid %d", + CTR6(KTR_PTRACE, + "PT_LWPINFO: tid %d (pid %d) event %d flags %#x child pid %d syscall %d", td2->td_tid, p->p_pid, pl->pl_event, pl->pl_flags, - pl->pl_child_pid); + pl->pl_child_pid, pl->pl_syscall_code); break; case PT_GETNUMLWPS: -- cgit v1.1