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authorDaisuke HATAYAMA <d.hatayama@jp.fujitsu.com>2010-03-05 22:44:07 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-06 20:26:45 +0100
commit1fcccbac89f5bbc5e41aa72086960059fce372da (patch)
tree9e42ee69f0216e612e5bd4338d6203dbad2d002f /fs
parentcoredump: move dump_write() and dump_seek() into a header file (diff)
downloadlinux-1fcccbac89f5bbc5e41aa72086960059fce372da.tar.xz
linux-1fcccbac89f5bbc5e41aa72086960059fce372da.zip
elf coredump: replace ELF_CORE_EXTRA_* macros by functions
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/binfmt_elf.c14
-rw-r--r--fs/binfmt_elf_fdpic.c14
-rw-r--r--fs/compat_binfmt_elf.c2
3 files changed, 12 insertions, 18 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 0bcfbb05c32d..c1a499599b7d 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1878,9 +1878,7 @@ static int elf_core_dump(struct coredump_params *cprm)
* Please check DEFAULT_MAX_MAP_COUNT definition when you modify here.
*/
segs = current->mm->map_count;
-#ifdef ELF_CORE_EXTRA_PHDRS
- segs += ELF_CORE_EXTRA_PHDRS;
-#endif
+ segs += elf_core_extra_phdrs();
gate_vma = get_gate_vma(current);
if (gate_vma != NULL)
@@ -1958,9 +1956,8 @@ static int elf_core_dump(struct coredump_params *cprm)
goto end_coredump;
}
-#ifdef ELF_CORE_WRITE_EXTRA_PHDRS
- ELF_CORE_WRITE_EXTRA_PHDRS;
-#endif
+ if (!elf_core_write_extra_phdrs(cprm->file, offset, &size, cprm->limit))
+ goto end_coredump;
/* write out the notes section */
if (!write_note_info(&info, cprm->file, &foffset))
@@ -1999,9 +1996,8 @@ static int elf_core_dump(struct coredump_params *cprm)
}
}
-#ifdef ELF_CORE_WRITE_EXTRA_DATA
- ELF_CORE_WRITE_EXTRA_DATA;
-#endif
+ if (!elf_core_write_extra_data(cprm->file, &size, cprm->limit))
+ goto end_coredump;
end_coredump:
set_fs(fs);
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 63edf40b569b..952699a86ec3 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1664,9 +1664,7 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
elf_core_copy_regs(&prstatus->pr_reg, cprm->regs);
segs = current->mm->map_count;
-#ifdef ELF_CORE_EXTRA_PHDRS
- segs += ELF_CORE_EXTRA_PHDRS;
-#endif
+ segs += elf_core_extra_phdrs();
/* Set up header */
fill_elf_fdpic_header(elf, segs + 1); /* including notes section */
@@ -1773,9 +1771,8 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
goto end_coredump;
}
-#ifdef ELF_CORE_WRITE_EXTRA_PHDRS
- ELF_CORE_WRITE_EXTRA_PHDRS;
-#endif
+ if (!elf_core_write_extra_phdrs(cprm->file, offset, &size, cprm->limit))
+ goto end_coredump;
/* write out the notes section */
for (i = 0; i < numnote; i++)
@@ -1799,9 +1796,8 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
mm_flags) < 0)
goto end_coredump;
-#ifdef ELF_CORE_WRITE_EXTRA_DATA
- ELF_CORE_WRITE_EXTRA_DATA;
-#endif
+ if (!elf_core_write_extra_data(cprm->file, &size, cprm->limit))
+ goto end_coredump;
if (cprm->file->f_pos != offset) {
/* Sanity check */
diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
index 0adced2f296f..112e45a17e99 100644
--- a/fs/compat_binfmt_elf.c
+++ b/fs/compat_binfmt_elf.c
@@ -28,10 +28,12 @@
#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