007-03-20 Jakub Jelinek <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/powerpc/libc-start.c
	(__cache_line_size): Define the variable here.  Add
	attribute_hidden, remove weak_extern.
	(__libc_start_main): Set __cache_line_size
	unconditionally.
	* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
	(__cache_line_size): Define the variable here.  Add
	attribute_hidden, remove weak_extern.
	(DL_PLATFORM_AUXV): Set __cache_line_size
	unconditionally.
	* sysdeps/powerpc/powerpc32/dl-machine.c (__cache_line_size): Remove
	weak_extern, add attribute_hidden.
	(__elf_machine_runtime_setup): Assume __cache_line_size is always
	defined in ld.so.
	* sysdeps/powerpc/powerpc32/memset.S (__cache_line_size): Remove
	definition.
	* sysdeps/powerpc/powerpc64/memset.S (__cache_line_size): Likewise.

4 files changed, 13 insertions, 37 deletions

diff --git a/sysdeps/powerpc/powerpc32/dl-machine.c b/sysdeps/powerpc/powerpc32/dl-machine.c
index fc460993b1..fc2ce7c1d9 100644
--- a/sysdeps/powerpc/powerpc32/dl-machine.c
+++ b/sysdeps/powerpc/powerpc32/dl-machine.c
@@ -26,10 +26,9 @@
 #include <dl-machine.h>
 #include <stdio-common/_itoa.h>
 
-/* The value __cache_line_size is defined in memset.S and is initialised
+/* The value __cache_line_size is defined in dl-sysdep.c and is initialised
    by _dl_sysdep_start via DL_PLATFORM_INIT.  */
-extern int __cache_line_size;
-weak_extern (__cache_line_size)
+extern int __cache_line_size attribute_hidden;
 
 /* Because ld.so is now versioned, these functions can be in their own file;
    no relocations need to be done to call them.
@@ -318,15 +317,9 @@ __elf_machine_runtime_setup (struct link_map *map, int lazy, int profile)
       /* Default minimum 4 words per cache line.  */
       int line_size_words = 4;
 
-      /* Don't try this until ld.so has relocated itself!  */
-      int *line_size_ptr = &__cache_line_size;
-      if (lazy && line_size_ptr != NULL)
-	{
-	  /*  Verify that __cache_line_size is defined and set.  */
-	  if (*line_size_ptr != 0)
-	    /* Convert bytes to words.  */
-	    line_size_words = *line_size_ptr / 4;
-	}
+      if (lazy && __cache_line_size != 0)
+	/* Convert bytes to words.  */
+	line_size_words = __cache_line_size / 4;
 
       size_modified = lazy ? rel_offset_words : 6;
       for (i = 0; i < size_modified; i += line_size_words)
diff --git a/sysdeps/powerpc/powerpc32/memset.S b/sysdeps/powerpc/powerpc32/memset.S
index f09c294674..454abb2b65 100644
--- a/sysdeps/powerpc/powerpc32/memset.S
+++ b/sysdeps/powerpc/powerpc32/memset.S
@@ -1,5 +1,5 @@
 /* Optimized memset implementation for PowerPC.
-   Copyright (C) 1997, 1999, 2000, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2000, 2003, 2007 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
@@ -21,14 +21,6 @@
 #include <bp-sym.h>
 #include <bp-asm.h>
 
-/* Define a global static that can hold the cache line size.  The
-   assumption is that startup code will access the "aux vector" to
-   to obtain the value set by the kernel and store it into this
-   variable.  */
-
-	.globl __cache_line_size
-	.lcomm __cache_line_size,4,4
-
 /* __ptr_t [r3] memset (__ptr_t s [r3], int c [r4], size_t n [r5]));
    Returns 's'.
 
diff --git a/sysdeps/powerpc/powerpc64/memset.S b/sysdeps/powerpc/powerpc64/memset.S
index 09c79fccd7..e0742ea73f 100644
--- a/sysdeps/powerpc/powerpc64/memset.S
+++ b/sysdeps/powerpc/powerpc64/memset.S
@@ -1,5 +1,6 @@
 /* Optimized memset implementation for PowerPC64.
-   Copyright (C) 1997, 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2000, 2002, 2003, 2007
+   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
@@ -21,12 +22,6 @@
 #include <bp-sym.h>
 #include <bp-asm.h>
 
-/* Define a global static that can hold the cache line size.  The
-   assumption is that startup code will access the "aux vector" to
-   to obtain the value set by the kernel and store it into this
-   variable.  */
-	.globl __cache_line_size
-	.lcomm __cache_line_size,4,4
 	.section	".toc","aw"
 .LC0:
 	.tc __cache_line_size[TC],__cache_line_size
diff --git a/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c b/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
index 7c02c68985..9bb8ec3f61 100644
--- a/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
+++ b/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
@@ -1,5 +1,6 @@
 /* Operating system support for run-time dynamic linker.  Linux/PPC version.
-   Copyright (C) 1997, 1998, 2001, 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2001, 2003, 2006, 2007
+   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
@@ -21,8 +22,7 @@
 #include <kernel-features.h>
 #include <ldsodefs.h>
 
-extern int __cache_line_size;
-weak_extern (__cache_line_size)
+int __cache_line_size attribute_hidden;
 
 /* Scan the Aux Vector for the "Data Cache Block Size" entry.  If found
    verify that the static extern __cache_line_size is defined by checking
@@ -30,12 +30,8 @@ weak_extern (__cache_line_size)
    value to __cache_line_size.  */
 #define DL_PLATFORM_AUXV						      \
       case AT_DCACHEBSIZE:						      \
-	{								      \
-	  int *cls = & __cache_line_size;				      \
-	  if (cls != NULL)						      \
-	    *cls = av->a_un.a_val;					      \
-	}								      \
-      break;
+	__cache_line_size = av->a_un.a_val;				      \
+	break;
 
 #ifndef __ASSUME_STD_AUXV