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[BZ #5741]

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2008-01-24  Steven Munroe  <sjmunroe@us.ibm.com>
	[BZ #5741]
	* 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.
This commit is contained in:
Ulrich Drepper 2008-04-11 00:02:52 +00:00
parent d1235fdf09
commit 153cf97250
2 changed files with 19 additions and 5 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2008-01-24 Steven Munroe <sjmunroe@us.ibm.com>
[BZ #5741]
* 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.
2008-02-21 Alan Modra <amodra@bigpond.net.au>
* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_type_class):

16
sysdeps/powerpc/powerpc64/dl-machine.h
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@ -1,6 +1,6 @@
/* Machine-dependent ELF dynamic relocation inline functions.
PowerPC64 version.
Copyright 1995-2005, 2006 Free Software Foundation, Inc.
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
@ -287,6 +287,8 @@ BODY_PREFIX "_dl_start_user:\n" \
#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")
@ -408,6 +410,11 @@ elf_machine_fixup_plt (struct link_map *map, lookup_t sym_map,
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;
@ -430,13 +437,12 @@ elf_machine_fixup_plt (struct link_map *map, lookup_t sym_map,
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;
}