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vm_remap_ro

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- allows shared memory to be mapped in readonly

- ben@minix3.org & tom@minix3.org
This commit is contained in:
Ben Gras
2011-11-28 19:05:50 +01:00
committed by Tomas Hruby
parent 88f990e122
commit 4668b84158
11 changed files with 72 additions and 12 deletions
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include/sys/mman.h
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@@ -30,6 +30,8 @@ _PROTOTYPE( int minix_munmap, (void *, size_t));
_PROTOTYPE( int minix_munmap_text, (void *, size_t));
_PROTOTYPE( void *vm_remap, (endpoint_t d, endpoint_t s, void *da,
void *sa, size_t si));
_PROTOTYPE( void *vm_remap_ro, (endpoint_t d, endpoint_t s, void *da,
void *sa, size_t si));
_PROTOTYPE( int vm_unmap, (endpoint_t endpt, void *addr));
_PROTOTYPE( unsigned long vm_getphys, (endpoint_t endpt, void *addr));
_PROTOTYPE( u8_t vm_getrefcount, (endpoint_t endpt, void *addr));