From: Rafael Ávila de Espíndola <rafael@espindo.la>
Date: Mon, 10 Dec 2018 21:27:54 +0000 (+0000)
Subject: Enable VDSO for static linking on mips
X-Git-Tag: glibc-2.29~218
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f9ba9eb821c96ae41038460ee1fcd42308e074f2;p=thirdparty%2Fglibc.git

Enable VDSO for static linking on mips

I have tested that this builds and the resulting program still work.

This was tested on gcc23.fsffrance.org, and for some reason the vdso
there seems unused even when using shared libraries.

	[BZ #19767]
	* sysdeps/unix/sysv/linux/mips/init-first.c: Remove #ifdef SHARED.
        * sysdeps/unix/sysv/linux/mips/libc-vdso.h: Remove #ifdef SHARED.
        * sysdeps/unix/sysv/linux/mips/mips32/sysdep.h: Define
	ALWAYS_USE_VSYSCALL.
        * sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h: Define
	ALWAYS_USE_VSYSCALL.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Define
	ALWAYS_USE_VSYSCALL.
---

diff --git a/ChangeLog b/ChangeLog
index 1d21435858e..e47fbd71192 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2018-12-10  Rafael Ávila de Espíndola  <rafael@espindo.la>
+
+	[BZ #19767]
+	* sysdeps/unix/sysv/linux/mips/init-first.c: Remove #ifdef SHARED.
+        * sysdeps/unix/sysv/linux/mips/libc-vdso.h: Remove #ifdef SHARED.
+        * sysdeps/unix/sysv/linux/mips/mips32/sysdep.h: Define
+	ALWAYS_USE_VSYSCALL.
+        * sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h: Define
+	ALWAYS_USE_VSYSCALL.
+	* sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Define
+	ALWAYS_USE_VSYSCALL.
+
 2018-12-10  Florian Weimer  <fweimer@redhat.com>
 
 	[BZ #23972]
diff --git a/sysdeps/unix/sysv/linux/mips/init-first.c b/sysdeps/unix/sysv/linux/mips/init-first.c
index 0cf8279c73a..2e04a6b0504 100644
--- a/sysdeps/unix/sysv/linux/mips/init-first.c
+++ b/sysdeps/unix/sysv/linux/mips/init-first.c
@@ -17,9 +17,8 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#ifdef SHARED
-# include <dl-vdso.h>
-# include <libc-vdso.h>
+#include <dl-vdso.h>
+#include <libc-vdso.h>
 
 int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) attribute_hidden;
 int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
@@ -38,7 +37,6 @@ _libc_vdso_platform_setup (void)
   VDSO_SYMBOL (clock_gettime) = p;
 }
 
-# define VDSO_SETUP _libc_vdso_platform_setup
-#endif
+#define VDSO_SETUP _libc_vdso_platform_setup
 
 #include <csu/init-first.c>
diff --git a/sysdeps/unix/sysv/linux/mips/libc-vdso.h b/sysdeps/unix/sysv/linux/mips/libc-vdso.h
index c36e22dc400..f8f89fbcf25 100644
--- a/sysdeps/unix/sysv/linux/mips/libc-vdso.h
+++ b/sysdeps/unix/sysv/linux/mips/libc-vdso.h
@@ -20,14 +20,10 @@
 #ifndef _LIBC_VDSO_H
 #define _LIBC_VDSO_H
 
-#ifdef SHARED
-
-# include <sysdep-vdso.h>
+#include <sysdep-vdso.h>
 
 extern int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)
    attribute_hidden;
 extern int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
 
-#endif
-
 #endif /* _LIBC_VDSO_H */
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
index cbe9cd2bda4..2d6e0234b60 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
@@ -18,6 +18,9 @@
 #ifndef _LINUX_MIPS_MIPS32_SYSDEP_H
 #define _LINUX_MIPS_MIPS32_SYSDEP_H 1
 
+/* Always enable vsyscalls on mips32.  */
+#define ALWAYS_USE_VSYSCALL 1
+
 /* There is some commonality.  */
 #include <sysdeps/unix/sysv/linux/sysdep.h>
 #include <sysdeps/unix/mips/mips32/sysdep.h>
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
index 8e3117d7a7a..5c8181cd290 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h
@@ -18,6 +18,9 @@
 #ifndef _LINUX_MIPS_SYSDEP_H
 #define _LINUX_MIPS_SYSDEP_H 1
 
+/* Always enable vsyscalls on n32.  */
+#define ALWAYS_USE_VSYSCALL 1
+
 /* There is some commonality.  */
 #include <sysdeps/unix/sysv/linux/sysdep.h>
 #include <sysdeps/unix/mips/mips64/n32/sysdep.h>
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
index c9046a06b89..7c71d1ed121 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
@@ -18,6 +18,9 @@
 #ifndef _LINUX_MIPS_SYSDEP_H
 #define _LINUX_MIPS_SYSDEP_H 1
 
+/* Always enable vsyscalls on n64.  */
+#define ALWAYS_USE_VSYSCALL 1
+
 /* There is some commonality.  */
 #include <sysdeps/unix/sysv/linux/sysdep.h>
 #include <sysdeps/unix/mips/mips64/n64/sysdep.h>