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[PATCH 24/58] Hide __chmod and __mkdir [BZ #18822]
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: libc-alpha at sourceware dot org
- Date: Fri, 1 Sep 2017 10:59:55 -0700
- Subject: [PATCH 24/58] Hide __chmod and __mkdir [BZ #18822]
- Authentication-results: sourceware.org; auth=none
- References: <20170901180029.9527-1-hjl.tools@gmail.com>
Hide internal __chmod and __mkdir functions to allow direct access
within libc.so and libc.a without using GOT nor PLT.
[BZ #18822]
* include/sys/stat.h (__chmod): Add libc_hidden_proto.
(__mkdir): Likewise.
* io/chmod.c (__chmod): Add libc_hidden_def.
* io/mkdir.c (__mkdir): Likewise.
* sysdeps/mach/hurd/chmod.c (__chmod): Likewise.
* sysdeps/mach/hurd/mkdir.c (__mkdir): Likewise.
* sysdeps/unix/sysv/linux/generic/chmod.c (__chmod): Likewise.
* sysdeps/unix/sysv/linux/generic/mkdir.c (__mkdir): Likewise.
---
include/sys/stat.h | 2 ++
io/chmod.c | 1 +
io/mkdir.c | 1 +
sysdeps/mach/hurd/chmod.c | 1 +
sysdeps/mach/hurd/mkdir.c | 1 +
sysdeps/unix/sysv/linux/generic/chmod.c | 2 ++
sysdeps/unix/sysv/linux/generic/mkdir.c | 2 ++
7 files changed, 10 insertions(+)
diff --git a/include/sys/stat.h b/include/sys/stat.h
index 4f31c00eca..eb44754185 100644
--- a/include/sys/stat.h
+++ b/include/sys/stat.h
@@ -7,9 +7,11 @@ extern int __stat (const char *__file, struct stat *__buf);
extern int __fstat (int __fd, struct stat *__buf);
extern int __lstat (const char *__file, struct stat *__buf);
extern int __chmod (const char *__file, __mode_t __mode);
+libc_hidden_proto (__chmod)
extern int __fchmod (int __fd, __mode_t __mode);
extern __mode_t __umask (__mode_t __mask);
extern int __mkdir (const char *__path, __mode_t __mode);
+libc_hidden_proto (__mkdir)
extern int __mknod (const char *__path,
__mode_t __mode, __dev_t __dev);
#if IS_IN (libc) || IS_IN (rtld)
diff --git a/io/chmod.c b/io/chmod.c
index 0b85565ec2..3cacbf612f 100644
--- a/io/chmod.c
+++ b/io/chmod.c
@@ -35,4 +35,5 @@ __chmod (const char *file, mode_t mode)
}
stub_warning (chmod)
+libc_hidden_def (__chmod)
weak_alias (__chmod, chmod)
diff --git a/io/mkdir.c b/io/mkdir.c
index 0b8499a707..43a790de33 100644
--- a/io/mkdir.c
+++ b/io/mkdir.c
@@ -36,4 +36,5 @@ __mkdir (const char *path, mode_t mode)
}
stub_warning (mkdir)
+libc_hidden_def (__mkdir)
weak_alias (__mkdir, mkdir)
diff --git a/sysdeps/mach/hurd/chmod.c b/sysdeps/mach/hurd/chmod.c
index 943f9855d4..612e62d0b2 100644
--- a/sysdeps/mach/hurd/chmod.c
+++ b/sysdeps/mach/hurd/chmod.c
@@ -35,4 +35,5 @@ __chmod (const char *file, mode_t mode)
return 0;
}
+libc_hidden_def (__chmod)
weak_alias (__chmod, chmod)
diff --git a/sysdeps/mach/hurd/mkdir.c b/sysdeps/mach/hurd/mkdir.c
index 58c2ac4291..1efac949f6 100644
--- a/sysdeps/mach/hurd/mkdir.c
+++ b/sysdeps/mach/hurd/mkdir.c
@@ -40,4 +40,5 @@ __mkdir (const char *file_name, mode_t mode)
return 0;
}
+libc_hidden_def (__mkdir)
weak_alias (__mkdir, mkdir)
diff --git a/sysdeps/unix/sysv/linux/generic/chmod.c b/sysdeps/unix/sysv/linux/generic/chmod.c
index 41d6d9851f..551c67cd07 100644
--- a/sysdeps/unix/sysv/linux/generic/chmod.c
+++ b/sysdeps/unix/sysv/linux/generic/chmod.c
@@ -28,4 +28,6 @@ __chmod (const char *file, mode_t mode)
{
return INLINE_SYSCALL (fchmodat, 3, AT_FDCWD, file, mode);
}
+
+libc_hidden_def (__chmod)
weak_alias (__chmod, chmod)
diff --git a/sysdeps/unix/sysv/linux/generic/mkdir.c b/sysdeps/unix/sysv/linux/generic/mkdir.c
index 6571d29ca3..7eebe90ba7 100644
--- a/sysdeps/unix/sysv/linux/generic/mkdir.c
+++ b/sysdeps/unix/sysv/linux/generic/mkdir.c
@@ -30,4 +30,6 @@ __mkdir (const char *path, mode_t mode)
{
return INLINE_SYSCALL (mkdirat, 3, AT_FDCWD, path, mode);
}
+
+libc_hidden_def (__mkdir)
weak_alias (__mkdir, mkdir)
--
2.13.5