summaryrefslogtreecommitdiff
path: root/user/trace.c
diff options
context:
space:
mode:
authorMole Shang <[email protected]>2024-02-19 14:10:32 +0800
committerMole Shang <[email protected]>2024-02-19 14:36:21 +0800
commitd86118fc80267649b4791c8c0c72ebd60edf1ef2 (patch)
treeb792b617b4df80a5803a9c1164d0e3fdfe9cfe31 /user/trace.c
parentb20ef9d0210fd7d9403acde1857eed1b9880c0b2 (diff)
parent0cf897cbe05fd8485162619db4244f4159d0eb52 (diff)
downloadxv6-labs-d86118fc80267649b4791c8c0c72ebd60edf1ef2.tar.gz
xv6-labs-d86118fc80267649b4791c8c0c72ebd60edf1ef2.tar.bz2
xv6-labs-d86118fc80267649b4791c8c0c72ebd60edf1ef2.zip
Merge branch 'fs' into mmap
Conflicts: .gitignore Makefile conf/lab.mk kernel/defs.h user/user.h
Diffstat (limited to 'user/trace.c')
-rw-r--r--user/trace.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/user/trace.c b/user/trace.c
new file mode 100644
index 0000000..dd77760
--- /dev/null
+++ b/user/trace.c
@@ -0,0 +1,27 @@
+#include "kernel/param.h"
+#include "kernel/types.h"
+#include "kernel/stat.h"
+#include "user/user.h"
+
+int
+main(int argc, char *argv[])
+{
+ int i;
+ char *nargv[MAXARG];
+
+ if(argc < 3 || (argv[1][0] < '0' || argv[1][0] > '9')){
+ fprintf(2, "Usage: %s mask command\n", argv[0]);
+ exit(1);
+ }
+
+ if (trace(atoi(argv[1])) < 0) {
+ fprintf(2, "%s: trace failed\n", argv[0]);
+ exit(1);
+ }
+
+ for(i = 2; i < argc && i < MAXARG; i++){
+ nargv[i-2] = argv[i];
+ }
+ exec(nargv[0], nargv);
+ exit(0);
+}