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author | Mole Shang <[email protected]> | 2024-02-13 19:39:56 +0800 |
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committer | Mole Shang <[email protected]> | 2024-02-13 19:39:56 +0800 |
commit | 89ef6f717ed4b3e702e5f6f906f58fe1ea27d366 (patch) | |
tree | 760cce316675479a6cca77551438e8d2cc5fe9ae /user/trace.c | |
parent | cfae93475dfb4cb5cfe264f4c029136e1447c262 (diff) | |
parent | 4a6593f1a6f666c618d303a4858c4c6d31b41c63 (diff) | |
download | xv6-labs-89ef6f717ed4b3e702e5f6f906f58fe1ea27d366.tar.gz xv6-labs-89ef6f717ed4b3e702e5f6f906f58fe1ea27d366.tar.bz2 xv6-labs-89ef6f717ed4b3e702e5f6f906f58fe1ea27d366.zip |
Merge branch 'cow' into net
Conflicts:
.gitignore
Makefile
conf/lab.mk
kernel/defs.h
kernel/syscall.c
kernel/vm.c
user/pingpong.c
user/user.h
user/usys.pl
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); +} |