diff options
| author |   Alexey Sokolov <alexey+gentoo@asokolov.org> | 2023-09-11 23:56:18 +0100 |
|---|---|---|
| committer |   Sam James <sam@gentoo.org> | 2023-09-12 00:33:12 +0100 |
| commit | 71b917e9f7a969a319d49ae34be09550f2530139 (patch) | |
| tree | f74e6b89a863f4d40b92f02199be2d9f2ce6c1ed /eclass | |
| parent | scripts/bootstrap-prefix: bump bootstrap snapshot (diff) | |
| download | prefix-71b917e9f7a969a319d49ae34be09550f2530139.tar.gz prefix-71b917e9f7a969a319d49ae34be09550f2530139.tar.bz2 prefix-71b917e9f7a969a319d49ae34be09550f2530139.zip | |
eclass/toolchain-funcs.eclass: add missing functions
Copied straight from ::gentoo's version of this file
Bug: https://bugs.gentoo.org/758167
Signed-off-by: Alexey Sokolov <alexey+gentoo@asokolov.org>
Closes: https://github.com/gentoo/prefix/pull/32
Signed-off-by: Sam James <sam@gentoo.org>
Diffstat (limited to 'eclass')
| -rw-r--r-- | eclass/toolchain-funcs.eclass | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass index b86a9682b1..1c7a34bd82 100644 --- a/eclass/toolchain-funcs.eclass +++ b/eclass/toolchain-funcs.eclass @@ -1186,4 +1186,68 @@ gen_usr_ldscript() { done } +# @FUNCTION: tc-get-cxx-stdlib +# @DESCRIPTION: +# Attempt to identify the C++ standard library used by the compiler. +# If the library is identified, the function returns 0 and prints one +# of the following: +# +# - ``libc++`` for ``sys-libs/libcxx`` +# - ``libstdc++`` for ``sys-devel/gcc``'s libstdc++ +# +# If the library is not recognized, the function returns 1. +tc-get-cxx-stdlib() { + local code='#include <ciso646> + +#if defined(_LIBCPP_VERSION) + HAVE_LIBCXX +#elif defined(__GLIBCXX__) + HAVE_LIBSTDCPP +#endif +' + local res=$( + $(tc-getCXX) ${CPPFLAGS} ${CXXFLAGS} -x c++ -E -P - \ + <<<"${code}" 2>/dev/null + ) + + case ${res} in + *HAVE_LIBCXX*) + echo libc++;; + *HAVE_LIBSTDCPP*) + echo libstdc++;; + *) + return 1;; + esac + + return 0 +} + +# @FUNCTION: tc-get-c-rtlib +# @DESCRIPTION: +# Attempt to identify the runtime used by the C/C++ compiler. +# If the runtime is identifed, the function returns 0 and prints one +# of the following: +# +# - ``compiler-rt`` for ``sys-libs/compiler-rt`` +# - ``libgcc`` for ``sys-devel/gcc``'s libgcc +# +# If the runtime is not recognized, the function returns 1. +tc-get-c-rtlib() { + local res=$( + $(tc-getCC) ${CPPFLAGS} ${CFLAGS} ${LDFLAGS} \ + -print-libgcc-file-name 2>/dev/null + ) + + case ${res} in + *libclang_rt*) + echo compiler-rt;; + *libgcc*) + echo libgcc;; + *) + return 1;; + esac + + return 0 +} + fi |