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make powerpc signal.h namespace-clean for posix/isoc
[musl]
/
src
/
mman
/
mmap.c
diff --git
a/src/mman/mmap.c
b/src/mman/mmap.c
index
0b092ae
..
fd2bb07
100644
(file)
--- a/
src/mman/mmap.c
+++ b/
src/mman/mmap.c
@@
-5,16
+5,25
@@
#include "syscall.h"
#include "libc.h"
#include "syscall.h"
#include "libc.h"
+static void dummy1(int x) { }
+static void dummy0(void) { }
+weak_alias(dummy1, __vm_lock);
+weak_alias(dummy0, __vm_unlock);
+
void *__mmap(void *start, size_t len, int prot, int flags, int fd, off_t off)
{
void *__mmap(void *start, size_t len, int prot, int flags, int fd, off_t off)
{
+ void *ret;
if (sizeof(off_t) > sizeof(long))
if (((long)off & 0xfff) | ((long)((unsigned long long)off>>(12 + 8*(sizeof(off_t)-sizeof(long))))))
start = (void *)-1;
if (sizeof(off_t) > sizeof(long))
if (((long)off & 0xfff) | ((long)((unsigned long long)off>>(12 + 8*(sizeof(off_t)-sizeof(long))))))
start = (void *)-1;
-#ifdef __NR_mmap2
- return (void *)syscall(SYS_mmap2, start, len, prot, flags, fd, off>>12);
+ if (flags & MAP_FIXED) __vm_lock(-1);
+#ifdef SYS_mmap2
+ ret = (void *)syscall(SYS_mmap2, start, len, prot, flags, fd, off>>12);
#else
#else
- ret
urn
(void *)syscall(SYS_mmap, start, len, prot, flags, fd, off);
+ ret
=
(void *)syscall(SYS_mmap, start, len, prot, flags, fd, off);
#endif
#endif
+ if (flags & MAP_FIXED) __vm_unlock();
+ return ret;
}
weak_alias(__mmap, mmap);
}
weak_alias(__mmap, mmap);