[patch 107/327] Add linux/elfcore-compat.h
From: akpm@linux-foundation.org
Date: 2007-10-17 06:29:28
From: Roland McGrath <redacted>
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 <redacted>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <redacted>
Cc: Andi Kleen <redacted>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: <redacted>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/elfcore-compat.h | 55 +++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff -puN /dev/null include/linux/elfcore-compat.h--- /dev/null
+++ a/include/linux/elfcore-compat.h@@ -0,0 +1,55 @@ +#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 */
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