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| author | Robert Morris <[email protected]> | 2022-08-10 06:37:21 -0400 |
|---|---|---|
| committer | Robert Morris <[email protected]> | 2022-08-10 06:37:21 -0400 |
| commit | 76ad8e974fefb4588b0a318f6502fde6bd730097 (patch) | |
| tree | bbc87d501012eec75873a4849182ac9615a669cc /user | |
| parent | 872fa88e8afd24a8f228ba431fad380d326b0f36 (diff) | |
| download | xv6-labs-76ad8e974fefb4588b0a318f6502fde6bd730097.tar.gz xv6-labs-76ad8e974fefb4588b0a318f6502fde6bd730097.tar.bz2 xv6-labs-76ad8e974fefb4588b0a318f6502fde6bd730097.zip | |
avoid user-level segfault if a process doesn't call exit()
Diffstat (limited to 'user')
| -rw-r--r-- | user/ulib.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/user/ulib.c b/user/ulib.c index 4775939..c7b66c4 100644 --- a/user/ulib.c +++ b/user/ulib.c @@ -3,6 +3,17 @@ #include "kernel/fcntl.h" #include "user/user.h" +// +// wrapper so that it's OK if main() does not call exit(). +// +void +_main() +{ + extern int main(); + main(); + exit(0); +} + char* strcpy(char *s, const char *t) { |