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Add linux/elfcore-compat.h

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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: Roland McGrath <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: "Luck, Tony" <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Roland McGrath authored and Linus Torvalds committed 2007-10-17 08:42:51 -07:00
1 parent 48ef09a16e
commit ab799dede9
1 file changed
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include/linux/elfcore-compat.h
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#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 */