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| author |   Joshua Watt <jpewhacker@gmail.com> | 2019-11-21 10:59:11 -0600 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2019-11-25 22:03:43 +0000 |
| commit | 44e77d3f97af4cd4ad8bc0984f093a116a830986 (patch) | |
| tree | e272d2444fc34c4467a003421dca79f04696e2d8 | |
| parent | 42458635b52f5cff6448d7440a44b03114e6842d (diff) | |
| download | openembedded-core-contrib-44e77d3f97af4cd4ad8bc0984f093a116a830986.tar.gz | |
classes/cmake: Use relative RPATHs
In most cases, the RPATH is stripped out when the ELF file is packages,
but by then the damage is done from a reproducible perspective because
this absolute path is hashed as part of the build-id generated at link
time ([1] has a good explanation). Fortunately, newer cmake has an
option to generated relative RPATHs that use $ORIGIN to set the path, so
set it in the toolchain file.
[1]: https://gitlab.kitware.com/cmake/cmake/issues/18413
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
| -rw-r--r-- | meta/classes/cmake.bbclass | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/meta/classes/cmake.bbclass b/meta/classes/cmake.bbclass index 291f1e8d44..8ccb1eefc7 100644 --- a/meta/classes/cmake.bbclass +++ b/meta/classes/cmake.bbclass @@ -120,6 +120,9 @@ set( ENV{QT_CONF_PATH} ${WORKDIR}/qt.conf ) # directory as rpath by default set( CMAKE_INSTALL_RPATH ${OECMAKE_RPATH} ) +# Use RPATHs relative to build directory for reproducibility +set( CMAKE_BUILD_RPATH_USE_ORIGIN ON ) + # Use our cmake modules list(APPEND CMAKE_MODULE_PATH "${STAGING_DATADIR}/cmake/Modules/") |