Jens GustedtandRich Felker
df7d0dfb9c
The intent of this is to avoid name space pollution of the C threads implementation. This has two sides to it. First we have to provide symbols that wouldn't pollute the name space for the C threads implementation. Second we have to clean up some internal uses of POSIX functions such that they don't implicitly drag in such symbols.
14 lines
325 B
C
14 lines
325 B
C
#include <sys/mman.h>
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#include "libc.h"
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#include "syscall.h"
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int __mprotect(void *addr, size_t len, int prot)
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{
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size_t start, end;
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start = (size_t)addr & -PAGE_SIZE;
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end = (size_t)((char *)addr + len + PAGE_SIZE-1) & -PAGE_SIZE;
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return syscall(SYS_mprotect, start, end-start, prot);
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}
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weak_alias(__mprotect, mprotect);
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