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| author |   Repository mirror & CI <repomirrorci@gentoo.org> | 2023-12-26 14:17:51 +0000 |
|---|---|---|
| committer | Repository mirror & CI <repomirrorci@gentoo.org> | 2023-12-26 14:17:51 +0000 |
| commit | beec6994e692dd65175a3f61713d9c00f87f908b (patch) | |
| tree | 37cf23c1fb5734febf8b29a2bd9c9133c13a628b | |
| parent | 2023-12-26 13:16:56 UTC (diff) | |
| parent | toolchain-funcs.eclass: Add tc-is-lto function (diff) | |
| download | gentoo-beec6994e692dd65175a3f61713d9c00f87f908b.tar.gz gentoo-beec6994e692dd65175a3f61713d9c00f87f908b.tar.bz2 gentoo-beec6994e692dd65175a3f61713d9c00f87f908b.zip | |
Merge updates from master
| -rw-r--r-- | eclass/toolchain-funcs.eclass | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/eclass/toolchain-funcs.eclass b/eclass/toolchain-funcs.eclass index 5da93063866b..cde84e6f34c8 100644 --- a/eclass/toolchain-funcs.eclass +++ b/eclass/toolchain-funcs.eclass @@ -1230,4 +1230,25 @@ tc-get-build-ptr-size() { die "Could not determine CBUILD pointer size" } +# @FUNCTION: tc-is-lto +# @RETURN: Shell true if we are using LTO, shell false otherwise +tc-is-lto() { + local f="${T}/test-lto.o" + + case $(tc-get-compiler-type) in + clang) + $(tc-getCC) ${CFLAGS} -c -o "${f}" -x c - <<<"" || die + # If LTO is used, clang will output bytecode and llvm-bcanalyzer + # will run successfully. Otherwise, it will output plain object + # file and llvm-bcanalyzer will exit with error. + llvm-bcanalyzer "${f}" &>/dev/null && return 0 + ;; + gcc) + $(tc-getCC) ${CFLAGS} -c -o "${f}" -x c - <<<"" || die + [[ $($(tc-getREADELF) -S "${f}") == *.gnu.lto* ]] && return 0 + ;; + esac + return 1 +} + fi |