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authorMole Shang <[email protected]>2024-02-17 11:55:33 +0800
committerMole Shang <[email protected]>2024-02-17 12:22:07 +0800
commite8e0a7b4c97064eb5e9415726d7e38aaceccd3fd (patch)
treefb42ba5be7a8ae608b968266f62fd71fa889a89d /user/trace.c
parenta6af72924b115c1177d18d9b1eaba56623e4248b (diff)
parentd85aec2689c4250d0384904bdc11aa618c726bec (diff)
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Merge branch 'thread' into fs
Conflicts: .gitignore Makefile conf/lab.mk kernel/param.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);
+}