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-rw-r--r--REORG.TODO/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c b/REORG.TODO/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c
new file mode 100644
index 0000000000..6f09fa20d3
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c
@@ -0,0 +1,85 @@
+/* Copyright (C) 2005-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#if defined SHARED && !defined __powerpc64__
+# define __gettimeofday __redirect___gettimeofday
+#else
+# define __redirect___gettimeofday __gettimeofday
+#endif
+
+#include <sys/time.h>
+
+#ifdef SHARED
+
+# include <dl-vdso.h>
+# include <libc-vdso.h>
+# include <dl-machine.h>
+
+# ifndef __powerpc64__
+#  undef __gettimeofday
+
+int
+__gettimeofday_vsyscall (struct timeval *tv, struct timezone *tz)
+{
+  return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
+}
+
+/* __GI___gettimeofday is defined as hidden and for ppc32 it enables the
+   compiler make a local call (symbol@local) for internal GLIBC usage. It
+   means the PLT won't be used and the ifunc resolver will be called directly.
+   For ppc64 a call to a function in another translation unit might use a
+   different toc pointer thus disallowing direct branchess and making internal
+   ifuncs calls safe.  */
+#  undef libc_hidden_def
+#  define libc_hidden_def(name)					\
+  __hidden_ver1 (__gettimeofday_vsyscall, __GI___gettimeofday,	\
+	       __gettimeofday_vsyscall);
+
+# endif /* !__powerpc64__  */
+
+static int
+__gettimeofday_syscall (struct timeval *tv, struct timezone *tz)
+{
+  return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
+}
+
+# define INIT_ARCH()							\
+  PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565);		\
+  void *vdso_gettimeofday = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615);
+
+/* If the vDSO is not available we fall back syscall.  */
+libc_ifunc_hidden (__redirect___gettimeofday, __gettimeofday,
+		   vdso_gettimeofday
+		   ? VDSO_IFUNC_RET (vdso_gettimeofday)
+		   : (void *) __gettimeofday_syscall);
+libc_hidden_def (__gettimeofday)
+
+#else
+
+# include <sysdep.h>
+# include <errno.h>
+
+int
+__gettimeofday (struct timeval *tv, struct timezone *tz)
+{
+  return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
+}
+libc_hidden_def (__gettimeofday)
+
+#endif
+weak_alias (__gettimeofday, gettimeofday)
+libc_hidden_weak (gettimeofday)