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authorCarmelo AMOROSO <carmelo.amoroso@st.com>2010-04-14 07:24:46 +0200
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2010-04-14 15:34:22 +0200
commit4f729fd9aadcd6727f7c44ff0fce279031de6b85 (patch)
treeb72265f50f3eefea5864f4f008bf3aec6ca4e2f4 /extra
parentd61066fcfe7f00843c4660182ea38ba3a5e41803 (diff)
ldso: Add config option for controlling LD_PRELOAD
On hardened system it could be useful to disable the use of LD_PRELOAD environment variable for preloading shared objects before the system libraries. So this patch add a config option, LDSO_PRELOAD_ENV_SUPPORT, to control this behaviour. It is enabled by default. Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'extra')
-rw-r--r--extra/Configs/Config.in12
1 files changed, 12 insertions, 0 deletions
diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in
index 4ce4bb09b..0d2822f7a 100644
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -300,6 +300,18 @@ config LDSO_CACHE_SUPPORT
After updating this file, it is necessary to run 'ldconfig' to update
the /etc/ld.so.cache shared library loader cache file.
+config LDSO_PRELOAD_ENV_SUPPORT
+ bool "Enable library loader LD_PRELOAD environment"
+ depends on HAVE_SHARED
+ default y
+ help
+ Enable this to make use of LD_PRELOAD environment variable.
+ A whitespace-separated list of additional, user-specified, ELF shared
+ libraries to be loaded before all others. This can be used to
+ selectively override functions in other shared libraries. For
+ set-user-ID/set-group-ID ELF binaries, only libraries in the standard
+ search directories that are also set-user-ID will be loaded.
+
config LDSO_PRELOAD_FILE_SUPPORT
bool "Enable library loader preload file (ld.so.preload)"
depends on HAVE_SHARED