From: Matt Mackall configurable support for ELF core dumps text data bss dec hex filename 3330172 529036 190556 4049764 3dcb64 vmlinux-baseline 3325552 528912 190556 4045020 3db8dc vmlinux-no-elf add/remove: 0/8 grow/shrink: 0/0 up/down: 0/-4424 (-4424) function old new delta fill_note 32 - -32 maydump 58 - -58 dump_seek 67 - -67 writenote 180 - -180 elf_dump_thread_status 274 - -274 fill_psinfo 308 - -308 fill_prstatus 466 - -466 elf_core_dump 3039 - -3039 Signed-off-by: Matt Mackall Signed-off-by: Andrew Morton --- fs/binfmt_elf.c | 4 ++-- init/Kconfig | 6 ++++++ 2 files changed, 8 insertions(+), 2 deletions(-) diff -puN fs/binfmt_elf.c~tiny-configure-elf-core-dump-support fs/binfmt_elf.c --- devel/fs/binfmt_elf.c~tiny-configure-elf-core-dump-support 2005-11-11 22:08:59.000000000 -0800 +++ devel-akpm/fs/binfmt_elf.c 2005-11-11 22:08:59.000000000 -0800 @@ -58,7 +58,7 @@ extern int dump_fpu (struct pt_regs *, e * If we don't support core dumping, then supply a NULL so we * don't even try. */ -#ifdef USE_ELF_CORE_DUMP +#if defined(USE_ELF_CORE_DUMP) && defined(CONFIG_ELF_CORE) static int elf_core_dump(long signr, struct pt_regs * regs, struct file * file); #else #define elf_core_dump NULL @@ -1107,7 +1107,7 @@ out: * Note that some platforms still use traditional core dumps and not * the ELF core dump. Each platform can select it as appropriate. */ -#ifdef USE_ELF_CORE_DUMP +#if defined(USE_ELF_CORE_DUMP) && defined(CONFIG_ELF_CORE) /* * ELF core dumper diff -puN init/Kconfig~tiny-configure-elf-core-dump-support init/Kconfig --- devel/init/Kconfig~tiny-configure-elf-core-dump-support 2005-11-11 22:08:59.000000000 -0800 +++ devel-akpm/init/Kconfig 2005-11-11 22:08:59.000000000 -0800 @@ -345,6 +345,12 @@ config DOUBLEFAULT would otherwise cause a system to silently reboot. Disabling this option saves about 4k. +config ELF_CORE + default y + bool "Enable ELF core dumps" if EMBEDDED + help + Enable support for generating core dumps. Disabling saves about 4k. + config BASE_FULL default y bool "Enable full-sized data structures for core" if EMBEDDED _