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authorH.J. Lu <hjl.tools@gmail.com>2017-10-01 15:53:52 -0700
committerH.J. Lu <hjl.tools@gmail.com>2017-10-01 15:54:10 -0700
commitd6daff12617290d4dfb499ed8425d33a48d844ba (patch)
tree8cc815db5ac1558ecd139ec7c9cece391865b48c /sysdeps/unix/sysv/linux
parentb68f8620561d7658b475eb512978d3c33d8a4547 (diff)
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Hide __readv and __writev [BZ #18822]
Hide internal __readv and __writev functions to allow direct access
within libc.so and libc.a without using GOT nor PLT.

	[BZ #18822]
	* include/sys/uio.h (__readv): Add libc_hidden_proto.
	(__writev): Likewise.
	* misc/readv.c (__readv): Add libc_hidden_def.
	* misc/writev.c (__writev): Likewise.
	* sysdeps/posix/readv.c (__readv): Likewise.
	* sysdeps/posix/writev.c (__writev): Likewise.
	* sysdeps/unix/sysv/linux/readv.c: Include <sys/uio.h>.
	(__readv): Likewise.
	* sysdeps/unix/sysv/linux/writev.c: Include <sys/uio.h>.
	(__writev): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux')
-rw-r--r--sysdeps/unix/sysv/linux/readv.c2
-rw-r--r--sysdeps/unix/sysv/linux/writev.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/readv.c b/sysdeps/unix/sysv/linux/readv.c
index 142a0a92a7..e4713008f1 100644
--- a/sysdeps/unix/sysv/linux/readv.c
+++ b/sysdeps/unix/sysv/linux/readv.c
@@ -17,6 +17,7 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include <unistd.h>
+#include <sys/uio.h>
 #include <sysdep-cancel.h>
 
 ssize_t
@@ -24,4 +25,5 @@ __readv (int fd, const struct iovec *iov, int iovcnt)
 {
   return SYSCALL_CANCEL (readv, fd, iov, iovcnt);
 }
+libc_hidden_def (__readv)
 weak_alias (__readv, readv)
diff --git a/sysdeps/unix/sysv/linux/writev.c b/sysdeps/unix/sysv/linux/writev.c
index 1b56cbb709..2495fd938a 100644
--- a/sysdeps/unix/sysv/linux/writev.c
+++ b/sysdeps/unix/sysv/linux/writev.c
@@ -17,6 +17,7 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include <unistd.h>
+#include <sys/uio.h>
 #include <sysdep-cancel.h>
 
 ssize_t
@@ -24,4 +25,5 @@ __writev (int fd, const struct iovec *iov, int iovcnt)
 {
   return SYSCALL_CANCEL (writev, fd, iov, iovcnt);
 }
+libc_hidden_def (__writev)
 weak_alias (__writev, writev)