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check WIFSTOPPED status

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This commit is contained in:
jmcneill 2011-09-05 18:16:34 +00:00
parent 7654d36ad8
commit 714e88f3f7
1 changed files with 13 additions and 11 deletions
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24
sys/arch/usermode/usermode/urkelvisor.c
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@ -1,4 +1,4 @@
/* $NetBSD: urkelvisor.c,v 1.5 2011/09/05 13:28:17 jmcneill Exp $ */
/* $NetBSD: urkelvisor.c,v 1.6 2011/09/05 18:16:34 jmcneill Exp $ */
/*-
* Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca>
@ -32,7 +32,7 @@
#include <sys/cdefs.h>
#ifdef __NetBSD__
__RCSID("$NetBSD: urkelvisor.c,v 1.5 2011/09/05 13:28:17 jmcneill Exp $");
__RCSID("$NetBSD: urkelvisor.c,v 1.6 2011/09/05 18:16:34 jmcneill Exp $");
#endif
#include <sys/types.h>
@ -153,16 +153,18 @@ urkelvisor(pid_t urkel_pid)
//fprintf(stderr, "syscall insyscall=%d status=%x\n",
// insyscall, status);
if (WSTOPSIG(status) == SIGTRAP) {
insyscall = !insyscall;
if (insyscall) {
ptrace_getregs(urkel_pid, &uregs);
sig = handle_syscall(&uregs, urkel_pid);
if (sig)
insyscall = !insyscall;
if (WIFSTOPPED(status)) {
if (WSTOPSIG(status) == SIGTRAP) {
insyscall = !insyscall;
if (insyscall) {
ptrace_getregs(urkel_pid, &uregs);
sig = handle_syscall(&uregs, urkel_pid);
if (sig)
insyscall = !insyscall;
}
} else {
sig = WSTOPSIG(status);
}
} else {
sig = WSTOPSIG(status);
}
}
}