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author | Mole Shang <[email protected]> | 2024-02-19 14:10:32 +0800 |
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committer | Mole Shang <[email protected]> | 2024-02-19 14:36:21 +0800 |
commit | d86118fc80267649b4791c8c0c72ebd60edf1ef2 (patch) | |
tree | b792b617b4df80a5803a9c1164d0e3fdfe9cfe31 /user/trace.c | |
parent | b20ef9d0210fd7d9403acde1857eed1b9880c0b2 (diff) | |
parent | 0cf897cbe05fd8485162619db4244f4159d0eb52 (diff) | |
download | xv6-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.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); +} |