gentoo-mirror/gentoo
1
0
Fork 0
mirror of https://github.com/gentoo-mirror/gentoo.git synced 2026-09-24 04:59:14 -07:00
Code Issues Projects Releases Wiki Activity

eclass/tests: dot-a: check if strip dies on LLVM LTO archives

Browse Source 
Bug: https://sourceware.org/PR33198
Signed-off-by: Sam James <sam@gentoo.org>
This commit is contained in:
Sam James
2025-07-23 23:31:54 +01:00
parent a09c4b76b7
commit d04a78e081
1 changed files with 56 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

56
eclass/tests/dot-a.sh
View File

@@ -458,6 +458,61 @@ test_strip_lto() {
tend ${ret} "strip operated on a fat LTO archive when it shouldn't"
}
test_strip_lto_mixed() {
# This is more of a test for https://sourceware.org/PR33198.
# It'll only happen in a Gentoo packaging context if a package
# uses Clang for some parts of the build or similar.
if ! type -P gcc &>/dev/null || ! type -P clang &>/dev/null ; then
return
fi
# If we have a static archive with Clang LTO members, does strip
# error out wrongly, or does it work? Note that this can only
# happen in a mixed build because strip-lto-bytecode checks for
# the toolchain type before deciding which strip to use.
tbegin "whether strip accepts a Clang IR archive"
ret=0
(
export CFLAGS="-O2 -flto"
rm test.a 2>/dev/null
clang ${CFLAGS} a.c -o a.o -c 2>/dev/null || return 1
$(tc-getAR) q test.a a.o 2>/dev/null || return 1
# Pretend that gcc built a.o/test.a so that we use
# GNU Binutils strip to trigger the bug.
CC=gcc strip-lto-bytecode test.a || return 1
return 0
) || ret=1
tend ${ret} "strip did not accept a Clang IR archive"
# If we have a static archive with Clang fat LTO members, can we link
# against the stripped archive?
# Note that this can only happen in a mixed build because strip-lto-bytecode
# checks for the toolchain type before deciding which strip to use.
tbegin "whether strip corrupts a Clang fat IR archive"
ret=0
(
export CFLAGS="-O2 -flto"
lto-guarantee-fat
rm test.a 2>/dev/null
clang ${CFLAGS} a.c -o a.o -c 2>/dev/null || return 1
$(tc-getAR) q test.a a.o 2>/dev/null || return 1
# Pretend that gcc built a.o/test.a so that we use
# GNU Binutils strip to trigger the bug.
CC=gcc strip-lto-bytecode test.a || return 1
clang ${CFLAGS} ${LDFLAGS} -fno-lto main.c test.a -o main || return 1
) || ret=1
tend ${ret} "strip corrupted a Clang IR archive, couldn't link against the result"
}
test_strip_nolto() {
# Check whether regular (non-LTO'd) static libraries are stripped
# and not ignored (bug #957882, https://sourceware.org/PR33078).
@@ -565,5 +620,6 @@ CC=${CC_orig}
AR=${AR_orig}
test_search_recursion
test_strip_lto
test_strip_lto_mixed
test_strip_nolto
texit