[PATCH] tiny: Configure ELF core dump support (708e9a79) · Commits · 戴 / test

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 <mpm@selenic.com> Signed-off-by:

Andrew Morton <akpm@osdl.org> Signed-off-by:

Linus Torvalds <torvalds@osdl.org>

fs/binfmt_elf.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -58,7 +58,7 @@ extern int dump_fpu (struct pt_regs , elf_fpregset_t );
		* 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
		@@ -1113,7 +1113,7 @@ 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

init/Kconfig

+6 −0

Original line number	Diff line number	Diff line
		@@ -327,6 +327,12 @@ 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

Admin message