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author | Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> | 2016-02-12 20:20:25 +0100 |
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committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2016-04-25 22:46:28 +0200 |
commit | 2a87b64f8e8a832a351f8552eb032e4b18431949 (patch) | |
tree | 9083da562a131dee495ce4f6a50c99dc2f04ac69 /package/glibc | |
parent | 10e905f83dd4aebdea4c51ccbe4260f5adc6748c (diff) |
toolchain-external: align library locations in target and staging dir
The toolchain-external logic is roughly:
- populate the staging dir by rsyncing the entire ${ARCH_LIB_DIR} and
usr/${ARCH_LIB_DIR} from sysroot.
- populate the target dir by explictly copying some libraries from sysroot
into target/lib and some other libraries in target/usr/lib, the split
being hardcoded into buildroot regardless of the location in the sysroot.
This means that a library libfoo could be located in:
staging/lib/libfoo.so
target/usr/lib/libfoo.so
When debugging an application that links against this library, gdb will
fruitlessly search for 'usr/lib/libfoo.so' in staging, and then suggest to
use 'set solib-search-path' which is a hack, really.
To solve the problem, we need to make sure that libraries from the toolchain
are installed in the same relative location in staging and target.
Achieve this by:
- replacing the convoluted search for libraries using for+find in sysroot
with a simple find in staging.
- determining DESTDIR for each library individually based on the location in
staging.
- treating LIB_EXTERNAL_LIBS and USR_LIB_EXTERNAL_LIBS equivalently
These changes also allow for the removal of most arguments to
copy_toolchain_lib_root in the method itself and their callers.
Test procedure:
- set configuration for a given toolchain
- make clean toolchain
- find output/target | sort > /tmp/out-before
- apply patch
- make clean toolchain
- find output/target | sort > /tmp/out-after
- diff -u /tmp/out-before /tmp/out-after
The only changes should be some libraries moving from lib to usr/lib or vice
versa. Notable examples being libstdc++ and libatomic.
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas:
- use -L instead of -follow in the find invocation, as suggested by
Arnout.
- move the BR2_STATIC_LIBS condition as a make condition rather than
a shell condition, as suggested by Arnout.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'package/glibc')
-rw-r--r-- | package/glibc/glibc.mk | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/package/glibc/glibc.mk b/package/glibc/glibc.mk index 4a9ba0ea4..2ae9cae86 100644 --- a/package/glibc/glibc.mk +++ b/package/glibc/glibc.mk @@ -118,7 +118,7 @@ endif define GLIBC_INSTALL_TARGET_CMDS for libs in $(GLIBC_LIBS_LIB); do \ - $(call copy_toolchain_lib_root,$(STAGING_DIR)/,,lib,$$libs,/lib) ; \ + $(call copy_toolchain_lib_root,$$libs) ; \ done endef |