diff options
| author |   art <art@openbsd.org> | 2002-03-12 11:57:12 +0000 |
|---|---|---|
| committer | art <art@openbsd.org> | 2002-03-12 11:57:12 +0000 |
| commit | f73842caab23a12641aa4ada37fb2ee4bd4e9f89 (patch) | |
| tree | 849823ab44a432da9d8d5c7a46ad0247192a247e /sys/kern/sys_process.c | |
| parent | Add PT_IO to ptrace ops. (diff) | |
| download | wireguard-openbsd-f73842caab23a12641aa4ada37fb2ee4bd4e9f89.tar.xz wireguard-openbsd-f73842caab23a12641aa4ada37fb2ee4bd4e9f89.zip | |
In the PT_STEP case, first set the new pc, then arrange
for the single-step. This can slightly break the error handling when
setting the sstep fails, but allows us to emulate single stepping in
software on arch that don't have support for that in hardware.
Diffstat (limited to 'sys/kern/sys_process.c')
| -rw-r--r-- | sys/kern/sys_process.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c index 55d3f6e7077..7f695677ae8 100644 --- a/sys/kern/sys_process.c +++ b/sys/kern/sys_process.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sys_process.c,v 1.19 2002/03/11 15:39:27 art Exp $ */ +/* $OpenBSD: sys_process.c,v 1.20 2002/03/12 11:57:12 art Exp $ */ /* $NetBSD: sys_process.c,v 1.55 1996/05/15 06:17:47 tls Exp $ */ /*- @@ -283,6 +283,11 @@ sys_ptrace(p, v, retval) return (EINVAL); PHOLD(t); + /* If the address paramter is not (int *)1, set the pc. */ + if ((int *)SCARG(uap, addr) != (int *)1) + if ((error = process_set_pc(t, SCARG(uap, addr))) != 0) + goto relebad; + #ifdef PT_STEP /* * Arrange for a single-step, if that's requested and possible. @@ -291,11 +296,6 @@ sys_ptrace(p, v, retval) if (error) goto relebad; #endif - - /* If the address paramter is not (int *)1, set the pc. */ - if ((int *)SCARG(uap, addr) != (int *)1) - if ((error = process_set_pc(t, SCARG(uap, addr))) != 0) - goto relebad; PRELE(t); goto sendsig; |