File glibc-2.8-ppc-dcb.diff of Package glibc

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File glibc-2.8-ppc-dcb.diff of Package glibc

2008-01-24  Steven Munroe  <sjmunroe@us.ibm.com>

* sysdeps/powerpc/powerpc64/dl-machine.h (PPC_DCBT, PPC_DCBF):
	Define additonal Data Cache Block instruction macros.
	(elf_machine_fixup_plt): Add dcbt for opd and plt entries.
	Replace dcbst with dcbf and sync with sync/isync.

diff -urN glibc-2.4-sles10sp1/sysdeps/powerpc/powerpc64/dl-machine.h glibc-2.4-sles10sp1-patched/sysdeps/powerpc/powerpc64/dl-machine.h
--- sysdeps/powerpc/powerpc64/dl-machine.h	2008-01-04 10:54:39.000000000 -0600
+++ sysdeps/powerpc/powerpc64/dl-machine.h	2008-02-05 09:02:11.000000000 -0600
@@ -1,7 +1,6 @@
 /* Machine-dependent ELF dynamic relocation inline functions.
    PowerPC64 version.
-   Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
-   Free Software Foundation, Inc.
+   Copyright Copyright 1995-2005, 2006, 2008 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
@@ -283,6 +282,8 @@
 #define GLINK_INITIAL_ENTRY_WORDS 8
 
 #define PPC_DCBST(where) asm volatile ("dcbst 0,%0" : : "r"(where) : "memory")
+#define PPC_DCBT(where) asm volatile ("dcbt 0,%0" : : "r"(where) : "memory")
+#define PPC_DCBF(where) asm volatile ("dcbf 0,%0" : : "r"(where) : "memory")
 #define PPC_SYNC asm volatile ("sync" : : : "memory")
 #define PPC_ISYNC asm volatile ("sync; isync" : : : "memory")
 #define PPC_ICBI(where) asm volatile ("icbi 0,%0" : : "r"(where) : "memory")
@@ -404,6 +405,11 @@
   Elf64_FuncDesc *rel = (Elf64_FuncDesc *) finaladdr;
   Elf64_Addr offset = 0;
 
+  PPC_DCBT (&plt->fd_aux);
+  PPC_DCBT (&plt->fd_func);
+  PPC_DCBT (&rel->fd_aux);
+  PPC_DCBT (&rel->fd_func);
+
   /* If sym_map is NULL, it's a weak undefined sym;  Leave the plt zero.  */
   if (sym_map == NULL)
     return 0;
@@ -426,13 +432,12 @@
 
   plt->fd_aux = rel->fd_aux + offset;
   plt->fd_toc = rel->fd_toc + offset;
-  PPC_DCBST (&plt->fd_aux);
-  PPC_DCBST (&plt->fd_toc);
-  PPC_SYNC;
+  PPC_DCBF (&plt->fd_toc);
+  PPC_ISYNC;
 
   plt->fd_func = rel->fd_func + offset;
   PPC_DCBST (&plt->fd_func);
-  PPC_SYNC;
+  PPC_ISYNC;
 
   return finaladdr;
 }

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File glibc-2.8-ppc-dcb.diff of Package glibc

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