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| author | klaar36 <klas.arvidsson@liu.se> | 2015-03-20 17:30:24 +0100 |
|---|---|---|
| committer | klaar36 <klas.arvidsson@liu.se> | 2015-03-20 17:30:24 +0100 |
| commit | e7bc50ca8ffcaa6ed68ebd2315f78b0f5a7d10ad (patch) | |
| tree | 4de97af7207676b69cb6a9aba8cb443cc134855d /src/userprog/exception.h | |
| parent | b0418a24e709f0632d2ede5b0f327c422931939b (diff) | |
| download | pintos-rs-e7bc50ca8ffcaa6ed68ebd2315f78b0f5a7d10ad.tar.gz | |
Initial Pintos
Diffstat (limited to 'src/userprog/exception.h')
| -rw-r--r-- | src/userprog/exception.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/userprog/exception.h b/src/userprog/exception.h new file mode 100644 index 0000000..f83e615 --- /dev/null +++ b/src/userprog/exception.h @@ -0,0 +1,12 @@ +#ifndef USERPROG_EXCEPTION_H +#define USERPROG_EXCEPTION_H + +/* Page fault error code bits that describe the cause of the exception. */ +#define PF_P 0x1 /* 0: not-present page. 1: access rights violation. */ +#define PF_W 0x2 /* 0: read, 1: write. */ +#define PF_U 0x4 /* 0: kernel, 1: user process. */ + +void exception_init (void); +void exception_print_stats (void); + +#endif /* userprog/exception.h */ |