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| author | Frans Kaashoek <kaashoek@mit.edu> | 2022-08-12 13:22:10 -0400 |
|---|---|---|
| committer | Frans Kaashoek <kaashoek@mit.edu> | 2022-08-12 13:22:10 -0400 |
| commit | 899cc02660232092209a5db57b326ab7b49813dd (patch) | |
| tree | abde95c343fb06294fba1c30036a3d6564602693 /kernel/defs.h | |
| parent | 8f58cc7df99e9f697ca3843886802ecab5cb8991 (diff) | |
| download | xv6-labs-899cc02660232092209a5db57b326ab7b49813dd.tar.gz xv6-labs-899cc02660232092209a5db57b326ab7b49813dd.tar.bz2 xv6-labs-899cc02660232092209a5db57b326ab7b49813dd.zip | |
Experiment with being more precise setting permissions for user pages.
Growing adds R|W pages (without X). Exec() marks the stack only R|W.
Probably could setup permissions for text and data better if we call
ld with --no-omagic instead of -N.
Diffstat (limited to 'kernel/defs.h')
| -rw-r--r-- | kernel/defs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/defs.h b/kernel/defs.h index 62b9292..5cf2de2 100644 --- a/kernel/defs.h +++ b/kernel/defs.h @@ -160,7 +160,7 @@ void kvmmap(pagetable_t, uint64, uint64, uint64, int); int mappages(pagetable_t, uint64, uint64, uint64, int); pagetable_t uvmcreate(void); void uvmfirst(pagetable_t, uchar *, uint); -uint64 uvmalloc(pagetable_t, uint64, uint64); +uint64 uvmalloc(pagetable_t, uint64, uint64, int); uint64 uvmdealloc(pagetable_t, uint64, uint64); int uvmcopy(pagetable_t, pagetable_t, uint64); void uvmfree(pagetable_t, uint64); |