path: root/src/mman
diff options
authorJens Gustedt <>2014-09-01 00:46:23 +0200
committerRich Felker <>2014-09-06 18:11:24 -0400
commitdf7d0dfb9c686df31149d09008ba92834bed9803 (patch)
tree758743956de08b94514757bda68a628751d0f533 /src/mman
parent6eb19505bc10eb7964c4863e53ef1028944044f2 (diff)
use weak symbols for the POSIX functions that will be used by C threads
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.
Diffstat (limited to 'src/mman')
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mman/mprotect.c b/src/mman/mprotect.c
index f488486d..535787b9 100644
--- a/src/mman/mprotect.c
+++ b/src/mman/mprotect.c
@@ -2,10 +2,12 @@
#include "libc.h"
#include "syscall.h"
-int mprotect(void *addr, size_t len, int prot)
+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);