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commit: 4fd2400c18a36b8aad51328b3731fef55968e4fc |
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Author: Sam James <sam <AT> gentoo <DOT> org> |
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AuthorDate: Sat Aug 20 00:31:21 2022 +0000 |
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Commit: Sam James <sam <AT> gentoo <DOT> org> |
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CommitDate: Sat Aug 20 00:32:36 2022 +0000 |
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URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4fd2400c |
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|
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sys-libs/glibc: restore GCC < 11.2.1_p* AVX512 sanity check |
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|
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It's cheap and it avoids build failures, so why not? |
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|
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Only really affects Tiger Lake or so though. Fixed |
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in newer GCCs anyway. |
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|
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Bug: https://bugs.gentoo.org/823780 |
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Signed-off-by: Sam James <sam <AT> gentoo.org> |
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|
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sys-libs/glibc/glibc-2.35-r8.ebuild | 6 ++++++ |
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sys-libs/glibc/glibc-2.36.ebuild | 6 ++++++ |
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sys-libs/glibc/glibc-9999.ebuild | 6 ++++++ |
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3 files changed, 18 insertions(+) |
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|
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diff --git a/sys-libs/glibc/glibc-2.35-r8.ebuild b/sys-libs/glibc/glibc-2.35-r8.ebuild |
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index c50c5ba3fbca..25a735d93196 100644 |
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--- a/sys-libs/glibc/glibc-2.35-r8.ebuild |
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+++ b/sys-libs/glibc/glibc-2.35-r8.ebuild |
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@@ -326,6 +326,12 @@ setup_target_flags() { |
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fi |
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# For compatibility with older binaries at slight performance cost. |
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use stack-realign && export CFLAGS_x86+=" -mstackrealign" |
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+ |
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+ # Workaround for bug #823780. |
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+ if tc-is-gcc && (($(gcc-major-version) == 11)) && (($(gcc-minor-version) <= 2)) && (($(gcc-micro-version) == 0)) ; then |
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+ export CFLAGS_x86="${CFLAGS_x86} -mno-avx512f" |
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+ einfo "Auto adding -mno-avx512f to CFLAGS_x86 for buggy GCC version (bug #823780) (ABI=${ABI})" |
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+ fi |
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fi |
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;; |
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mips) |
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|
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diff --git a/sys-libs/glibc/glibc-2.36.ebuild b/sys-libs/glibc/glibc-2.36.ebuild |
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index df09f5c97b9d..dc52203e0fe7 100644 |
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--- a/sys-libs/glibc/glibc-2.36.ebuild |
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+++ b/sys-libs/glibc/glibc-2.36.ebuild |
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@@ -326,6 +326,12 @@ setup_target_flags() { |
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fi |
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# For compatibility with older binaries at slight performance cost. |
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use stack-realign && export CFLAGS_x86+=" -mstackrealign" |
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+ |
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+ # Workaround for bug #823780. |
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+ if tc-is-gcc && (($(gcc-major-version) == 11)) && (($(gcc-minor-version) <= 2)) && (($(gcc-micro-version) == 0)) ; then |
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+ export CFLAGS_x86="${CFLAGS_x86} -mno-avx512f" |
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+ einfo "Auto adding -mno-avx512f to CFLAGS_x86 for buggy GCC version (bug #823780) (ABI=${ABI})" |
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+ fi |
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fi |
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;; |
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mips) |
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|
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diff --git a/sys-libs/glibc/glibc-9999.ebuild b/sys-libs/glibc/glibc-9999.ebuild |
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index b35b2febd192..92b54a5a254a 100644 |
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--- a/sys-libs/glibc/glibc-9999.ebuild |
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+++ b/sys-libs/glibc/glibc-9999.ebuild |
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@@ -326,6 +326,12 @@ setup_target_flags() { |
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fi |
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# For compatibility with older binaries at slight performance cost. |
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use stack-realign && export CFLAGS_x86+=" -mstackrealign" |
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+ |
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+ # Workaround for bug #823780. |
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+ if tc-is-gcc && (($(gcc-major-version) == 11)) && (($(gcc-minor-version) <= 2)) && (($(gcc-micro-version) == 0)) ; then |
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+ export CFLAGS_x86="${CFLAGS_x86} -mno-avx512f" |
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+ einfo "Auto adding -mno-avx512f to CFLAGS_x86 for buggy GCC version (bug #823780) (ABI=${ABI})" |
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+ fi |
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fi |
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;; |
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mips) |
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