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| author | Alex Kelly <alex.page.kelly@gmail.com> | 2012-10-04 17:15:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-06 03:05:15 +0900 |
| commit | 046d662f481830e652ac34cd112249adde16452a (patch) | |
| tree | ad13e968b4b02f9e2c35ce45f358477474df80d7 /fs/Kconfig.binfmt | |
| parent | db9aeca97a58563e1ab927d157c9b5048f233e73 (diff) | |
| download | lwn-046d662f481830e652ac34cd112249adde16452a.tar.gz lwn-046d662f481830e652ac34cd112249adde16452a.zip | |
coredump: make core dump functionality optional
Adds an expert Kconfig option, CONFIG_COREDUMP, which allows disabling of
core dump. This saves approximately 2.6k in the compiled kernel, and
complements CONFIG_ELF_CORE, which now depends on it.
CONFIG_COREDUMP also disables coredump-related sysctls, except for
suid_dumpable and related functions, which are necessary for ptrace.
[akpm@linux-foundation.org: fix binfmt_aout.c build]
Signed-off-by: Alex Kelly <alex.page.kelly@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/Kconfig.binfmt')
| -rw-r--r-- | fs/Kconfig.binfmt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt index 022574202749..0efd1524b977 100644 --- a/fs/Kconfig.binfmt +++ b/fs/Kconfig.binfmt @@ -164,3 +164,11 @@ config BINFMT_MISC You may say M here for module support and later load the module when you have use for it; the module is called binfmt_misc. If you don't know what to answer at this point, say Y. + +config COREDUMP + bool "Enable core dump support" if EXPERT + default y + help + This option enables support for performing core dumps. You almost + certainly want to say Y here. Not necessary on systems that never + need debugging or only ever run flawless code. |