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| author |   Manoj Gupta <manojgupta@google.com> | 2019-09-12 04:32:40 -0700 |
|---|---|---|
| committer |   Sergei Trofimovich <slyfox@gentoo.org> | 2019-09-13 19:42:56 +0100 |
| commit | 463ec5b25ac36933127e726c553ad83994017aa1 (patch) | |
| tree | 87aeef5aac95ae95ec75d6382e553ca4d6a2bb30 /eclass | |
| parent | dev-libs/isl: arm stable wrt bug #693842 (diff) | |
| download | gentoo-463ec5b25ac36933127e726c553ad83994017aa1.tar.gz gentoo-463ec5b25ac36933127e726c553ad83994017aa1.tar.bz2 gentoo-463ec5b25ac36933127e726c553ad83994017aa1.zip | |
toolchain-funcs: Add tc-ld-is-lld helper.
LLD is a new linker for LLVM project.
Add tc-ld-is-lld helper to be able to detect it.
Signed-off-by: Manoj Gupta <manojgupta@google.com>
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Diffstat (limited to 'eclass')
| -rw-r--r-- | eclass/toolchain-funcs.eclass | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass index 7bd90bb4e4a0..e358d484417a 100644 --- a/eclass/toolchain-funcs.eclass +++ b/eclass/toolchain-funcs.eclass @@ -453,6 +453,36 @@ tc-ld-is-gold() { return 1 } +# @FUNCTION: tc-ld-is-lld +# @USAGE: [toolchain prefix] +# @DESCRIPTION: +# Return true if the current linker is set to lld. +tc-ld-is-lld() { + local out + + # First check the linker directly. + out=$($(tc-getLD "$@") --version 2>&1) + if [[ ${out} == *"LLD"* ]] ; then + return 0 + fi + + # Then see if they're selecting lld via compiler flags. + # Note: We're assuming they're using LDFLAGS to hold the + # options and not CFLAGS/CXXFLAGS. + local base="${T}/test-tc-lld" + cat <<-EOF > "${base}.c" + int main() { return 0; } + EOF + out=$($(tc-getCC "$@") ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} -Wl,--version "${base}.c" -o "${base}" 2>&1) + rm -f "${base}"* + if [[ ${out} == *"LLD"* ]] ; then + return 0 + fi + + # No lld here! + return 1 +} + # @FUNCTION: tc-ld-disable-gold # @USAGE: [toolchain prefix] # @DESCRIPTION: |