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| author | Rosen Penev <rosenp@gmail.com> | 2019-12-13 21:07:04 -0800 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2019-12-23 00:22:07 +0100 |
| commit | 856ea2bad3b3eac565215c0ac79f37a4ba4cd5b7 (patch) | |
| tree | 04e6563e9656f70225650876f95238b9554df856 /package/libs/libcxx/files/g++-libcxx | |
| parent | fd211e1677fc653feeef6b0b8b8e8659ac274b3c (diff) | |
| download | upstream-856ea2bad3b3eac565215c0ac79f37a4ba4cd5b7.tar.gz upstream-856ea2bad3b3eac565215c0ac79f37a4ba4cd5b7.tar.bz2 upstream-856ea2bad3b3eac565215c0ac79f37a4ba4cd5b7.zip | |
libcxx: Add package
Currently in OpenWrt, there are two libc++: libstdcpp and uClibc++. The
former is huge and the latter supports only C++98 with some basic support
for C++11. Those C++ versions seem to be specific to the compiler version
libcxx supports C++11 and above while being much smaller than libstdcpp.
On mt7621, these are the sizes of the ipks that I get:
libstdcpp: 460786
libcxx: 182881
uClibc++:67720
libcxx is faster than uClibc++ and is under active development as part of
the LLVM project while uClibc++ is effectively dead.
This PR modifies uclibc++.mk to expose the make menuconfig option. Further
cleanup is beyond the scope of this PR. What that means is, this is not
used by default.
A g++-libcxx wrapper based on the uClibc++ one was added. Works the same
way.
Compile tested with all packages that use uclibc++.mk in their Makefiles
under mipsel_24kc. kismet fails compilation but that package needs to be
cleaned up and updated.
Runtime tested with gddrescue, gdisk, dcwapd, bonnie++, and aircrack-ng
on a TP-Link Archer C7v2.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Diffstat (limited to 'package/libs/libcxx/files/g++-libcxx')
| -rwxr-xr-x | package/libs/libcxx/files/g++-libcxx | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/package/libs/libcxx/files/g++-libcxx b/package/libs/libcxx/files/g++-libcxx new file mode 100755 index 0000000000..81ca46eb0e --- /dev/null +++ b/package/libs/libcxx/files/g++-libcxx @@ -0,0 +1,19 @@ +#!/bin/sh + +WRAPPER_INCLUDEDIR="-I$STAGING_DIR/usr/include/c++/v1" +WRAPPER_LIBDIR="-L$STAGING_DIR/usr/lib" +WRAPPER_LIBS="-lc -lgcc_s -lssp_nonshared" + +WRAPPER_OPTIONS="" +WRAPPER_INCLIB="Y" +for arg +do + case "$arg" in + -c|-E|-S) WRAPPER_INCLIB="N" ;; + -static) [ "$WRAPPER_LIBS" != "-lc -lgcc_s -lssp_nonshared -lgcc_eh" ] && WRAPPER_LIBS="-lc -lgcc_s -lssp_nonshared -lgcc_eh" ;; + esac +done +[ "$WRAPPER_INCLIB" = "Y" ] && WRAPPER_OPTIONS="-nodefaultlibs $WRAPPER_LIBDIR -lc++ -lsupc++ $WRAPPER_LIBS" + +exec CXX -fno-builtin -nostdinc++ -DGCC_HASCLASSVISIBILITY "$WRAPPER_INCLUDEDIR" "$@" $WRAPPER_OPTIONS + |