diff options
Diffstat (limited to 'libc-top-half/musl/src/mman/mprotect.c')
-rw-r--r-- | libc-top-half/musl/src/mman/mprotect.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/mman/mprotect.c b/libc-top-half/musl/src/mman/mprotect.c new file mode 100644 index 0000000..535787b --- /dev/null +++ b/libc-top-half/musl/src/mman/mprotect.c @@ -0,0 +1,13 @@ +#include <sys/mman.h> +#include "libc.h" +#include "syscall.h" + +int __mprotect(void *addr, size_t len, int prot) +{ + size_t start, end; + start = (size_t)addr & -PAGE_SIZE; + end = (size_t)((char *)addr + len + PAGE_SIZE-1) & -PAGE_SIZE; + return syscall(SYS_mprotect, start, end-start, prot); +} + +weak_alias(__mprotect, mprotect); |