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author | Mole Shang <[email protected]> | 2024-02-17 11:55:33 +0800 |
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committer | Mole Shang <[email protected]> | 2024-02-17 12:22:07 +0800 |
commit | e8e0a7b4c97064eb5e9415726d7e38aaceccd3fd (patch) | |
tree | fb42ba5be7a8ae608b968266f62fd71fa889a89d /user/trace.c | |
parent | a6af72924b115c1177d18d9b1eaba56623e4248b (diff) | |
parent | d85aec2689c4250d0384904bdc11aa618c726bec (diff) | |
download | xv6-labs-e8e0a7b4c97064eb5e9415726d7e38aaceccd3fd.tar.gz xv6-labs-e8e0a7b4c97064eb5e9415726d7e38aaceccd3fd.tar.bz2 xv6-labs-e8e0a7b4c97064eb5e9415726d7e38aaceccd3fd.zip |
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.c | 27 |
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); +} |