mirror of
https://github.com/joel16/android_kernel_sony_msm8994.git
synced 2024-11-24 20:50:30 +00:00
1fcccbac89
elf_core_dump() and elf_fdpic_core_dump() use #ifdef and the corresponding macro for hiding _multiline_ logics in functions. This patch removes #ifdef and replaces ELF_CORE_EXTRA_* by corresponding functions. For architectures not implemeonting ELF_CORE_EXTRA_*, we use weak functions in order to reduce a range of modification. This cleanup is for my next patches, but I think this cleanup itself is worth doing regardless of my firnal purpose. Signed-off-by: Daisuke HATAYAMA <d.hatayama@jp.fujitsu.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: David Howells <dhowells@redhat.com> Cc: Greg Ungerer <gerg@snapgear.com> Cc: Roland McGrath <roland@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andi Kleen <andi@firstfloor.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
134 lines
3.5 KiB
C
134 lines
3.5 KiB
C
/*
|
|
* 32-bit compatibility support for ELF format executables and core dumps.
|
|
*
|
|
* Copyright (C) 2007 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This copyrighted material is made available to anyone wishing to use,
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
|
* of the GNU General Public License v.2.
|
|
*
|
|
* Red Hat Author: Roland McGrath.
|
|
*
|
|
* This file is used in a 64-bit kernel that wants to support 32-bit ELF.
|
|
* asm/elf.h is responsible for defining the compat_* and COMPAT_* macros
|
|
* used below, with definitions appropriate for 32-bit ABI compatibility.
|
|
*
|
|
* We use macros to rename the ABI types and machine-dependent
|
|
* functions used in binfmt_elf.c to compat versions.
|
|
*/
|
|
|
|
#include <linux/elfcore-compat.h>
|
|
#include <linux/time.h>
|
|
|
|
/*
|
|
* Rename the basic ELF layout types to refer to the 32-bit class of files.
|
|
*/
|
|
#undef ELF_CLASS
|
|
#define ELF_CLASS ELFCLASS32
|
|
|
|
#undef elfhdr
|
|
#undef elf_phdr
|
|
#undef elf_shdr
|
|
#undef elf_note
|
|
#undef elf_addr_t
|
|
#define elfhdr elf32_hdr
|
|
#define elf_phdr elf32_phdr
|
|
#define elf_shdr elf32_shdr
|
|
#define elf_note elf32_note
|
|
#define elf_addr_t Elf32_Addr
|
|
|
|
/*
|
|
* The machine-dependent core note format types are defined in elfcore-compat.h,
|
|
* which requires asm/elf.h to define compat_elf_gregset_t et al.
|
|
*/
|
|
#define elf_prstatus compat_elf_prstatus
|
|
#define elf_prpsinfo compat_elf_prpsinfo
|
|
|
|
/*
|
|
* Compat version of cputime_to_compat_timeval, perhaps this
|
|
* should be an inline in <linux/compat.h>.
|
|
*/
|
|
static void cputime_to_compat_timeval(const cputime_t cputime,
|
|
struct compat_timeval *value)
|
|
{
|
|
struct timeval tv;
|
|
cputime_to_timeval(cputime, &tv);
|
|
value->tv_sec = tv.tv_sec;
|
|
value->tv_usec = tv.tv_usec;
|
|
}
|
|
|
|
#undef cputime_to_timeval
|
|
#define cputime_to_timeval cputime_to_compat_timeval
|
|
|
|
|
|
/*
|
|
* To use this file, asm/elf.h must define compat_elf_check_arch.
|
|
* The other following macros can be defined if the compat versions
|
|
* differ from the native ones, or omitted when they match.
|
|
*/
|
|
|
|
#undef ELF_ARCH
|
|
#undef elf_check_arch
|
|
#define elf_check_arch compat_elf_check_arch
|
|
|
|
#ifdef COMPAT_ELF_PLATFORM
|
|
#undef ELF_PLATFORM
|
|
#define ELF_PLATFORM COMPAT_ELF_PLATFORM
|
|
#endif
|
|
|
|
#ifdef COMPAT_ELF_HWCAP
|
|
#undef ELF_HWCAP
|
|
#define ELF_HWCAP COMPAT_ELF_HWCAP
|
|
#endif
|
|
|
|
#ifdef COMPAT_ARCH_DLINFO
|
|
#undef ARCH_DLINFO
|
|
#define ARCH_DLINFO COMPAT_ARCH_DLINFO
|
|
#endif
|
|
|
|
#ifdef COMPAT_ELF_ET_DYN_BASE
|
|
#undef ELF_ET_DYN_BASE
|
|
#define ELF_ET_DYN_BASE COMPAT_ELF_ET_DYN_BASE
|
|
#endif
|
|
|
|
#ifdef COMPAT_ELF_EXEC_PAGESIZE
|
|
#undef ELF_EXEC_PAGESIZE
|
|
#define ELF_EXEC_PAGESIZE COMPAT_ELF_EXEC_PAGESIZE
|
|
#endif
|
|
|
|
#ifdef COMPAT_ELF_PLAT_INIT
|
|
#undef ELF_PLAT_INIT
|
|
#define ELF_PLAT_INIT COMPAT_ELF_PLAT_INIT
|
|
#endif
|
|
|
|
#ifdef COMPAT_SET_PERSONALITY
|
|
#undef SET_PERSONALITY
|
|
#define SET_PERSONALITY COMPAT_SET_PERSONALITY
|
|
#endif
|
|
|
|
#ifdef compat_start_thread
|
|
#undef start_thread
|
|
#define start_thread compat_start_thread
|
|
#endif
|
|
|
|
#ifdef compat_arch_setup_additional_pages
|
|
#undef ARCH_HAS_SETUP_ADDITIONAL_PAGES
|
|
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
|
|
#undef arch_setup_additional_pages
|
|
#define arch_setup_additional_pages compat_arch_setup_additional_pages
|
|
#endif
|
|
|
|
/*
|
|
* Rename a few of the symbols that binfmt_elf.c will define.
|
|
* These are all local so the names don't really matter, but it
|
|
* might make some debugging less confusing not to duplicate them.
|
|
*/
|
|
#define elf_format compat_elf_format
|
|
#define init_elf_binfmt init_compat_elf_binfmt
|
|
#define exit_elf_binfmt exit_compat_elf_binfmt
|
|
|
|
/*
|
|
* We share all the actual code with the native (64-bit) version.
|
|
*/
|
|
#include "binfmt_elf.c"
|