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[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / powerpc / init-first.c

diff --git a/sysdeps/unix/sysv/linux/powerpc/init-first.c b/sysdeps/unix/sysv/linux/powerpc/init-first.c
index 061715f87538c74564fc5f726149aa532b3c3a38..4b285fb84243dd18e7754a614a10a5b3bd2733a9 100644 (file)
--- a/sysdeps/unix/sysv/linux/powerpc/init-first.c
+++ b/sysdeps/unix/sysv/linux/powerpc/init-first.c
@@ -1,5 +1,5 @@
 /* Initialization code run first thing by the ELF startup code.  Linux/PowerPC.
-   Copyright (C) 2007-2013 Free Software Foundation, Inc.
+   Copyright (C) 2007-2019 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
@@ -14,57 +14,70 @@
 
    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/>.  */
-
-#ifdef SHARED
-# include <dl-vdso.h>
-# undef __gettimeofday
-# undef __clock_gettime
-# undef __clock_getres
-# include <bits/libc-vdso.h>
-
-void *__vdso_gettimeofday attribute_hidden;
-void *__vdso_clock_gettime;
-void *__vdso_clock_getres;
-void *__vdso_get_tbfreq;
-void *__vdso_getcpu;
-void *__vdso_time;
+   <https://www.gnu.org/licenses/>.  */
+
+#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 *);
+int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *);
+unsigned long long (*VDSO_SYMBOL(get_tbfreq)) (void);
+int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *);
+time_t (*VDSO_SYMBOL(time)) (time_t *);
+
 #if defined(__PPC64__) || defined(__powerpc64__)
-void *__vdso_sigtramp_rt64;
+void *VDSO_SYMBOL(sigtramp_rt64);
 #else
-void *__vdso_sigtramp32;
-void *__vdso_sigtramp_rt32;
+void *VDSO_SYMBOL(sigtramp32);
+void *VDSO_SYMBOL(sigtramp_rt32);
 #endif
 
 static inline void
 _libc_vdso_platform_setup (void)
 {
-  PREPARE_VERSION (linux2615, "LINUX_2.6.15", 123718565);
+  PREPARE_VERSION_KNOWN (linux2615, LINUX_2_6_15);
 
-  __vdso_gettimeofday = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615);
+  void *p = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2615);
+  PTR_MANGLE (p);
+  VDSO_SYMBOL (gettimeofday) = p;
 
-  __vdso_clock_gettime = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2615);
+  p = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2615);
+  PTR_MANGLE (p);
+  VDSO_SYMBOL (clock_gettime) = p;
 
-  __vdso_clock_getres = _dl_vdso_vsym ("__kernel_clock_getres", &linux2615);
+  p = _dl_vdso_vsym ("__kernel_clock_getres", &linux2615);
+  PTR_MANGLE (p);
+  VDSO_SYMBOL (clock_getres) = p;
 
-  __vdso_get_tbfreq = _dl_vdso_vsym ("__kernel_get_tbfreq", &linux2615);
+  p = _dl_vdso_vsym ("__kernel_get_tbfreq", &linux2615);
+  PTR_MANGLE (p);
+  VDSO_SYMBOL (get_tbfreq) = p;
 
-  __vdso_getcpu = _dl_vdso_vsym ("__kernel_getcpu", &linux2615);
+  p = _dl_vdso_vsym ("__kernel_getcpu", &linux2615);
+  PTR_MANGLE (p);
+  VDSO_SYMBOL (getcpu) = p;
 
-  __vdso_time = _dl_vdso_vsym ("__kernel_time", &linux2615);
+  p = _dl_vdso_vsym ("__kernel_time", &linux2615);
+  PTR_MANGLE (p);
+  VDSO_SYMBOL (time) = p;
 
   /* PPC64 uses only one signal trampoline symbol, while PPC32 will use
      two depending if SA_SIGINFO is used (__kernel_sigtramp_rt32) or not
-     (__kernel_sigtramp32).  */
+     (__kernel_sigtramp32).
+     There is no need to pointer mangle these symbol because they will
+     used only for pointer comparison.  */
 #if defined(__PPC64__) || defined(__powerpc64__)
-  __vdso_sigtramp_rt64 = _dl_vdso_vsym ("__kernel_sigtramp_rt64", &linux2615);
+  VDSO_SYMBOL(sigtramp_rt64) = _dl_vdso_vsym ("__kernel_sigtramp_rt64",
+                                             &linux2615);
 #else
-  __vdso_sigtramp32 = _dl_vdso_vsym ("__kernel_sigtramp32", &linux2615);
-  __vdso_sigtramp_rt32 = _dl_vdso_vsym ("__kernel_sigtramp_rt32", &linux2615);
+  VDSO_SYMBOL(sigtramp32) = _dl_vdso_vsym ("__kernel_sigtramp32", &linux2615);
+  VDSO_SYMBOL(sigtramp_rt32) = _dl_vdso_vsym ("__kernel_sigtramp_rt32",
+                                             &linux2615);
 #endif
 }
 
-# define VDSO_SETUP _libc_vdso_platform_setup
-#endif
+#define VDSO_SETUP _libc_vdso_platform_setup
 
 #include <csu/init-first.c>