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Ignore the 'addr' argument passed to PT_STEP (it is required to be '1'

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for PT_STEP which means "ignore") and PT_DETACH.

PR:		kern/146167
MFC after:	1 week
This commit is contained in:
John Baldwin 2010-05-25 21:32:37 +00:00
parent f25a8a0150
commit 0bfbf4d220
1 changed files with 20 additions and 14 deletions
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34
sys/kern/sys_process.c
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@ -899,24 +899,29 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data)
if (error)
goto out;
break;
case PT_CONTINUE:
case PT_TO_SCE:
p->p_stops |= S_PT_SCE;
break;
case PT_TO_SCX:
p->p_stops |= S_PT_SCX;
break;
case PT_SYSCALL:
p->p_stops |= S_PT_SCE | S_PT_SCX;
break;
}
if (addr != (void *)1) {
error = ptrace_set_pc(td2, (u_long)(uintfptr_t)addr);
if (error)
if (addr != (void *)1) {
error = ptrace_set_pc(td2,
(u_long)(uintfptr_t)addr);
if (error)
goto out;
}
switch (req) {
case PT_TO_SCE:
p->p_stops |= S_PT_SCE;
break;
}
if (req == PT_DETACH) {
case PT_TO_SCX:
p->p_stops |= S_PT_SCX;
break;
case PT_SYSCALL:
p->p_stops |= S_PT_SCE | S_PT_SCX;
break;
}
break;
case PT_DETACH:
/* reset process parent */
if (p->p_oppid != p->p_pptr->p_pid) {
struct proc *pp;
@ -941,6 +946,7 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data)
/* should we send SIGCHLD? */
/* childproc_continued(p); */
break;
}
sendsig: