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Make creation of ld.so.conf optional

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... enabled by default for multilib and disabled otherwise. Buildroot
has been complaining about /etc/ld.so.conf presence for almost a year
now and I missed that.

After the release, xldd will be modified to query the compiler for
the list of multilibs to search. This would be too invasive change
before 1.23, though.

Note that it may lead to configurations where xldd currently does not
find the libraries (if both DEMULTILIB and CREATE_LDSO_CONF are turned
off). This is not the default setting in Kconfig, though.

Signed-off-by: Alexey Neyman <stilor@att.net>
This commit is contained in:
Alexey Neyman 2017-03-22 10:54:37 -07:00
parent 91169535d7
commit 3d1678a7f6
2 changed files with 22 additions and 2 deletions
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20
config/libc.in
View File

@ -87,6 +87,26 @@ config THREADS_NONE
endchoice
config CREATE_LDSO_CONF
bool "Create /etc/ld.so.conf file"
depends on SHARED_LIBS
default y if MULTILIB
help
Create /etc/ld.so.conf file in the sysroot directory for the
target.
Note that Buildroot errors out if it sees /etc/ld.so.conf.
config LDSO_CONF_EXTRA_DIRS_ARRAY
string "Extra directories to add to /etc/ld.so.conf
depends on CREATE_LDSO_CONF
help
Extra directories to include in /etc/ld.so.conf. The directories
will be augmented per compiler's multilib specification,
if applicable. For example, if the compiler's multilibs include
/lib and /lib64, and you specify /usr/local/lib here, ld.so.conf
will have both /usr/local/lib and /usr/local/lib64.
config LIBC_XLDD
bool
prompt "Install a cross ldd-like helper"

4
scripts/build/internals.sh
View File

@ -10,7 +10,7 @@ create_ldso_conf()
done
CT_DoExecLog ALL mkdir -p "${multi_root}/etc"
for b in /lib /usr/lib /usr/local/lib; do
for b in /lib /usr/lib "${CT_LDSO_CONF_EXTRA_DIRS_ARRAY[@]}"; do
d="${b}/${multi_os_dir}"
CT_SanitizeVarDir d
echo "${d}" >> "${multi_root}/etc/ld.so.conf"
@ -34,7 +34,7 @@ do_finish() {
CT_DoStep INFO "Finalizing the toolchain's directory"
if [ "${CT_SHARED_LIBS}" = "y" ]; then
if [ "${CT_CREATE_LDSO_CONF}" = "y" ]; then
# Create /etc/ld.so.conf
CT_mkdir_pushd "${CT_BUILD_DIR}/build-create-ldso"
CT_IterateMultilibs create_ldso_conf create-ldso