Module Name: src
Committed By: jmcneill
Date: Fri Aug 12 11:37:05 UTC 2011
Modified Files:
src/sys/arch/usermode/dev: cpu.c
src/sys/arch/usermode/include: thunk.h
src/sys/arch/usermode/usermode: machdep.c thunk.c
Log Message:
implement reboot using execv
To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.11 src/sys/arch/usermode/dev/cpu.c
cvs rdiff -u -r1.1 -r1.2 src/sys/arch/usermode/include/thunk.h
cvs rdiff -u -r1.10 -r1.11 src/sys/arch/usermode/usermode/machdep.c
cvs rdiff -u -r1.1 -r1.2 src/sys/arch/usermode/usermode/thunk.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/usermode/dev/cpu.c
diff -u src/sys/arch/usermode/dev/cpu.c:1.10 src/sys/arch/usermode/dev/cpu.c:1.11
--- src/sys/arch/usermode/dev/cpu.c:1.10 Fri Aug 12 00:57:24 2011
+++ src/sys/arch/usermode/dev/cpu.c Fri Aug 12 11:37:04 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: cpu.c,v 1.10 2011/08/12 00:57:24 jmcneill Exp $ */
+/* $NetBSD: cpu.c,v 1.11 2011/08/12 11:37:04 jmcneill Exp $ */
/*-
* Copyright (c) 2007 Jared D. McNeill <[email protected]>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.10 2011/08/12 00:57:24 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.11 2011/08/12 11:37:04 jmcneill Exp $");
#include <sys/param.h>
#include <sys/conf.h>
@@ -108,6 +108,8 @@
void
cpu_reboot(int howto, char *bootstr)
{
+ extern void usermode_reboot(void);
+
splhigh();
if ((howto & RB_POWERDOWN) == RB_POWERDOWN)
@@ -124,10 +126,7 @@
printf("rebooting...\n");
- /*
- * XXXJDM If we've panic'd, make sure we dump a core
- */
- thunk_abort();
+ usermode_reboot();
/* NOTREACHED */
}
Index: src/sys/arch/usermode/include/thunk.h
diff -u src/sys/arch/usermode/include/thunk.h:1.1 src/sys/arch/usermode/include/thunk.h:1.2
--- src/sys/arch/usermode/include/thunk.h:1.1 Fri Aug 12 00:57:24 2011
+++ src/sys/arch/usermode/include/thunk.h Fri Aug 12 11:37:04 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: thunk.h,v 1.1 2011/08/12 00:57:24 jmcneill Exp $ */
+/* $NetBSD: thunk.h,v 1.2 2011/08/12 11:37:04 jmcneill Exp $ */
/*-
* Copyright (c) 2011 Jared D. McNeill <[email protected]>
@@ -48,4 +48,6 @@
int thunk_getchar(void);
void thunk_putchar(int);
+int thunk_execv(const char *, char * const []);
+
#endif /* !_ARCH_USERMODE_INCLUDE_THUNK_H */
Index: src/sys/arch/usermode/usermode/machdep.c
diff -u src/sys/arch/usermode/usermode/machdep.c:1.10 src/sys/arch/usermode/usermode/machdep.c:1.11
--- src/sys/arch/usermode/usermode/machdep.c:1.10 Wed Aug 10 01:32:44 2011
+++ src/sys/arch/usermode/usermode/machdep.c Fri Aug 12 11:37:04 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: machdep.c,v 1.10 2011/08/10 01:32:44 jmcneill Exp $ */
+/* $NetBSD: machdep.c,v 1.11 2011/08/12 11:37:04 jmcneill Exp $ */
/*-
* Copyright (c) 2007 Jared D. McNeill <[email protected]>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.10 2011/08/10 01:32:44 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.11 2011/08/12 11:37:04 jmcneill Exp $");
#include <sys/types.h>
#include <sys/param.h>
@@ -41,6 +41,8 @@
#include <dev/mm.h>
+#include <machine/thunk.h>
+
#include "opt_memsize.h"
char machine[] = "usermode";
@@ -50,7 +52,10 @@
/* XXX */
int physmem = MEMSIZE * 1024 / PAGE_SIZE;
+static char **saved_argv;
+
void main(int argc, char *argv[]);
+void usermode_reboot(void);
void
main(int argc, char *argv[])
@@ -60,6 +65,8 @@
extern void kernmain(void);
int i, j, r, tmpopt = 0;
+ saved_argv = argv;
+
ttycons_consinit();
for (i = 1; i < argc; i++) {
@@ -86,6 +93,20 @@
}
void
+usermode_reboot(void)
+{
+ struct itimerval itimer;
+
+ /* make sure the timer is turned off */
+ memset(&itimer, 0, sizeof(itimer));
+ thunk_setitimer(ITIMER_REAL, &itimer, NULL);
+
+ if (thunk_execv(saved_argv[0], saved_argv) == -1)
+ thunk_abort();
+ /* NOTREACHED */
+}
+
+void
setstatclockrate(int arg)
{
}
Index: src/sys/arch/usermode/usermode/thunk.c
diff -u src/sys/arch/usermode/usermode/thunk.c:1.1 src/sys/arch/usermode/usermode/thunk.c:1.2
--- src/sys/arch/usermode/usermode/thunk.c:1.1 Fri Aug 12 00:57:24 2011
+++ src/sys/arch/usermode/usermode/thunk.c Fri Aug 12 11:37:05 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: thunk.c,v 1.1 2011/08/12 00:57:24 jmcneill Exp $ */
+/* $NetBSD: thunk.c,v 1.2 2011/08/12 11:37:05 jmcneill Exp $ */
/*-
* Copyright (c) 2011 Jared D. McNeill <[email protected]>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: thunk.c,v 1.1 2011/08/12 00:57:24 jmcneill Exp $");
+__RCSID("$NetBSD: thunk.c,v 1.2 2011/08/12 11:37:05 jmcneill Exp $");
#include <machine/thunk.h>
@@ -37,6 +37,7 @@
#include <stdlib.h>
#include <time.h>
#include <ucontext.h>
+#include <unistd.h>
int
thunk_setitimer(int which, const struct itimerval *value,
@@ -108,3 +109,10 @@
putchar(c);
fflush(stdout);
}
+
+int
+thunk_execv(const char *path, char * const argv[])
+{
+ return execv(path, argv);
+}
+
