diff options
| author |   Keith Packard <keithp@keithp.com> | 2021-01-12 07:27:45 (GMT) |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2021-01-14 23:05:10 (GMT) |
| commit | beb587a2711885e5630e695cf89767d5de5df4d1 (patch) | |
| tree | 152cc80bacb6a3fa67d3d6023b99881b40da9213 /scripts/build | |
| parent | 15e053fdc44e8c4a8fe1f87ea2e6787b8420dcd1 (diff) | |
newlib-nano: Build libstdc++ against newlib-nano if requested
This uses the gcc support for building libstdc++ using alternate lib
header files.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'scripts/build')
| -rw-r--r-- | scripts/build/companion_libs/350-newlib_nano.sh | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/scripts/build/companion_libs/350-newlib_nano.sh b/scripts/build/companion_libs/350-newlib_nano.sh index 498ef63..00ea948 100644 --- a/scripts/build/companion_libs/350-newlib_nano.sh +++ b/scripts/build/companion_libs/350-newlib_nano.sh @@ -22,6 +22,49 @@ do_newlib_nano_extract() { CT_ExtractPatch NEWLIB_NANO } +#------------------------------------------------------------------------------ +# Build an additional target libstdc++ with "-Os" (optimise for speed) option +# flag for libstdc++ "newlib_nano" variant. +do_cc_libstdcxx_newlib_nano() +{ + local -a final_opts + local final_backend + + if [ "${CT_NEWLIB_NANO_GCC_LIBSTDCXX}" = "y" ]; then + final_opts+=( "host=${CT_HOST}" ) + final_opts+=( "libstdcxx_name=newlib-nano" ) + final_opts+=( "prefix=${CT_PREFIX_DIR}" ) + final_opts+=( "complibs=${CT_HOST_COMPLIBS_DIR}" ) + final_opts+=( "cflags=${CT_CFLAGS_FOR_HOST}" ) + final_opts+=( "ldflags=${CT_LDFLAGS_FOR_HOST}" ) + final_opts+=( "lang_list=c,c++" ) + final_opts+=( "build_step=libstdcxx" ) + if [ "${CT_LIBC_NEWLIB_NANO_ENABLE_TARGET_OPTSPACE}" = "y" ]; then + final_opts+=( "enable_optspace=yes" ) + fi + + if [ "${CT_BARE_METAL}" = "y" ]; then + final_opts+=( "mode=baremetal" ) + final_opts+=( "build_libgcc=yes" ) + final_opts+=( "build_libstdcxx=yes" ) + final_opts+=( "build_libgfortran=yes" ) + if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then + final_opts+=( "build_staticlinked=yes" ) + fi + final_backend=do_gcc_core_backend + else + final_backend=do_gcc_backend + fi + + CT_DoStep INFO "Installing libstdc++ newlib-nano" + CT_mkdir_pushd "${CT_BUILD_DIR}/build-cc-libstdcxx-newlib-nano" + "${final_backend}" "${final_opts[@]}" + CT_Popd + + CT_EndStep + fi +} + do_newlib_nano_for_target() { local -a newlib_nano_opts local cflags_for_target @@ -139,6 +182,8 @@ EOF CT_Popd CT_EndStep + + do_cc_libstdcxx_newlib_nano } fi |