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Commit ab799ded authored by Roland McGrath's avatar Roland McGrath Committed by Linus Torvalds
Browse files

Add linux/elfcore-compat.h 



This adds the linux/elfcore-compat.h header file, which is the CONFIG_COMPAT
analog of the linux/elfcore.h header.  Each arch that needs to fake out
fs/binfmt_elf.c for its compat code can use this header to replace the
hand-copied definitions of the compat variants of struct elf_prstatus et al.
Only the pr_reg field varies by arch, so asm/{compat,elf}.h must define
compat_elf_gregset_t before linux/elfcore-compat.h can be used.

It's a clean-up that every arch with compat core dumping code can benefit
from.  I only touched the ones I have handy to test at home.  Doing the same
for each other arch should be straightforward, and I'm happy to offer tips.

Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Andi Kleen <ak@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 48ef09a1

include/linux/elfcore-compat.h

0 → 100644
+55 −0
Original line number Diff line number Diff line 
#ifndef _LINUX_ELFCORE_COMPAT_H

#define _LINUX_ELFCORE_COMPAT_H



#include <linux/elf.h>

#include <linux/elfcore.h>

#include <linux/compat.h>



/*

 * Make sure these layouts match the linux/elfcore.h native definitions.

 */



struct compat_elf_siginfo

{

	compat_int_t			si_signo;

	compat_int_t			si_code;

	compat_int_t			si_errno;

};



struct compat_elf_prstatus

{

	struct compat_elf_siginfo	pr_info;

	short				pr_cursig;

	compat_ulong_t			pr_sigpend;

	compat_ulong_t			pr_sighold;

	compat_pid_t			pr_pid;

	compat_pid_t			pr_ppid;

	compat_pid_t			pr_pgrp;

	compat_pid_t			pr_sid;

	struct compat_timeval		pr_utime;

	struct compat_timeval		pr_stime;

	struct compat_timeval		pr_cutime;

	struct compat_timeval		pr_cstime;

	compat_elf_gregset_t		pr_reg;

#ifdef CONFIG_BINFMT_ELF_FDPIC

	compat_ulong_t			pr_exec_fdpic_loadmap;

	compat_ulong_t			pr_interp_fdpic_loadmap;

#endif

	compat_int_t			pr_fpvalid;

};



struct compat_elf_prpsinfo

{

	char				pr_state;

	char				pr_sname;

	char				pr_zomb;

	char				pr_nice;

	compat_ulong_t			pr_flag;

	compat_uid_t			pr_uid;

	compat_gid_t			pr_gid;

	compat_pid_t			pr_pid, pr_ppid, pr_pgrp, pr_sid;

	char				pr_fname[16];

	char				pr_psargs[ELF_PRARGSZ];

};



#endif /* _LINUX_ELFCORE_COMPAT_H */