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| author | Wladimir J. van der Laan <laanwj@gmail.com> | 2014-04-30 08:17:22 +0200 |
|---|---|---|
| committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2014-04-30 15:30:39 +0200 |
| commit | 92e3022f888a2e090a91c1f097ecc27e9601354b (patch) | |
| tree | e9be5782c13046207330999bad910dcc8db2e839 /contrib | |
| parent | 3ab1664594def04471fbeef27ddd45ae6264306b (diff) | |
| download | bitcoin-92e3022f888a2e090a91c1f097ecc27e9601354b.tar.xz | |
gitian: don't export any symbols from executable
This avoids conflicts between the libraries statically linked into bitcoin and any
libraries we may link dynamically (such as Qt and OpenSSL, see issue #4094).
It also avoids start-up overhead to not export any unnecessary symbols.
To do this, build a linker script that marks all symbols as local.
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/gitian-descriptors/gitian-linux.yml | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/contrib/gitian-descriptors/gitian-linux.yml b/contrib/gitian-descriptors/gitian-linux.yml index 94b50998bc..692e9b358d 100644 --- a/contrib/gitian-descriptors/gitian-linux.yml +++ b/contrib/gitian-descriptors/gitian-linux.yml @@ -48,8 +48,18 @@ script: | tar -zxf ../build/qt-linux${GBUILD_BITS}-4.6.4-gitian-r1.tar.gz cd ../build + # Avoid exporting *any* symbols from the executable + # This avoids conflicts between the libraries statically linked into bitcoin and any + # libraries we may link dynamically (such as Qt and OpenSSL, see issue #4094). + # It also avoids start-up overhead to not export any unnecessary symbols. + # To do this, build a linker script that marks all symbols as local. + LINKER_SCRIPT=$HOME/build/linker_version_script + echo ' + { + local: *; + };' > $LINKER_SCRIPT function do_configure { - ./configure "$@" --enable-upnp-default --prefix=$STAGING --with-protoc-bindir=$STAGING/host/bin --with-boost=$STAGING --disable-maintainer-mode --disable-dependency-tracking PKG_CONFIG_PATH="$STAGING/lib/pkgconfig" CPPFLAGS="-I$STAGING/include ${OPTFLAGS}" LDFLAGS="-L$STAGING/lib ${OPTFLAGS}" CXXFLAGS="-frandom-seed=bitcoin ${OPTFLAGS}" BOOST_CHRONO_EXTRALIBS="-lrt" --enable-glibc-back-compat + ./configure "$@" --enable-upnp-default --prefix=$STAGING --with-protoc-bindir=$STAGING/host/bin --with-boost=$STAGING --disable-maintainer-mode --disable-dependency-tracking PKG_CONFIG_PATH="$STAGING/lib/pkgconfig" CPPFLAGS="-I$STAGING/include ${OPTFLAGS}" LDFLAGS="-L$STAGING/lib -Wl,--version-script=$LINKER_SCRIPT ${OPTFLAGS}" CXXFLAGS="-frandom-seed=bitcoin ${OPTFLAGS}" BOOST_CHRONO_EXTRALIBS="-lrt" --enable-glibc-back-compat } # cd bitcoin |