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commit: 604495b43aa4a5b7aed2044b84ca0d88e600d1df |
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Author: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org> |
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AuthorDate: Sun Sep 10 09:45:39 2017 +0000 |
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Commit: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org> |
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CommitDate: Sun Sep 10 10:12:18 2017 +0000 |
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URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=604495b4 |
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|
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glibc: disable stack protector on ARCH=ppc |
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|
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Currently gcc on powerpc32 generates invalid code for |
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__builtin_return_address(0) calls. Normally programs |
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don't do that but malloc() hooks in glibc do: |
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|
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Bug: https://gcc.gnu.org/PR81996 |
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Bug: https://bugs.gentoo.org/629054 |
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Signed-off-by: Sergei Trofimovich <slyfox <AT> gentoo.org> |
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|
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eclass/toolchain-glibc.eclass | 14 +++++++++++++- |
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sys-libs/glibc/glibc-2.26-r1.ebuild | 14 +++++++++++++- |
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2 files changed, 26 insertions(+), 2 deletions(-) |
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|
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diff --git a/eclass/toolchain-glibc.eclass b/eclass/toolchain-glibc.eclass |
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index 33f27ccf46e..98e394659cf 100644 |
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--- a/eclass/toolchain-glibc.eclass |
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+++ b/eclass/toolchain-glibc.eclass |
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@@ -795,7 +795,19 @@ glibc_do_configure() { |
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fi |
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|
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if version_is_at_least 2.25 ; then |
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- myconf+=( --enable-stack-protector=all ) |
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+ case ${CTARGET} in |
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+ powerpc-*) |
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+ # Currently gcc on powerpc32 generates invalid code for |
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+ # __builtin_return_address(0) calls. Normally programs |
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+ # don't do that but malloc hooks in glibc do: |
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+ # https://gcc.gnu.org/PR81996 |
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+ # https://bugs.gentoo.org/629054 |
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+ myconf+=( --enable-stack-protector=no ) |
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+ ;; |
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+ *) |
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+ myconf+=( --enable-stack-protector=all ) |
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+ ;; |
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+ esac |
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fi |
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|
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if version_is_at_least 2.25 ; then |
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|
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diff --git a/sys-libs/glibc/glibc-2.26-r1.ebuild b/sys-libs/glibc/glibc-2.26-r1.ebuild |
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index fbe7444f948..b852aba96bc 100644 |
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--- a/sys-libs/glibc/glibc-2.26-r1.ebuild |
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+++ b/sys-libs/glibc/glibc-2.26-r1.ebuild |
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@@ -315,7 +315,19 @@ glibc_do_configure() { |
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[[ -d ports ]] && addons+=",ports" |
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popd > /dev/null |
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|
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- myconf+=( --enable-stack-protector=all ) |
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+ case ${CTARGET} in |
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+ powerpc-*) |
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+ # Currently gcc on powerpc32 generates invalid code for |
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+ # __builtin_return_address(0) calls. Normally programs |
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+ # don't do that but malloc hooks in glibc do: |
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+ # https://gcc.gnu.org/PR81996 |
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+ # https://bugs.gentoo.org/629054 |
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+ myconf+=( --enable-stack-protector=no ) |
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+ ;; |
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+ *) |
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+ myconf+=( --enable-stack-protector=all ) |
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+ ;; |
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+ esac |
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myconf+=( --enable-stackguard-randomization ) |
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|
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[[ $(tc-is-softfloat) == "yes" ]] && myconf+=( --without-fp ) |
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