commit: b42744dd8d41b9a471b0f99fe8d9e7cb8f806a9a
Author: Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org>
AuthorDate: Sun Apr 28 10:23:34 2019 +0000
Commit: Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org>
CommitDate: Sun Apr 28 10:23:34 2019 +0000
URL: https://gitweb.gentoo.org/proj/riscv.git/commit/?id=b42744dd
eclass: filter -march in gcc build for riscv
Signed-off-by: Andreas K. Hüttel <dilfridge <AT> gentoo.org>
eclass/toolchain.eclass | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index be94db8..ff66986 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -1513,6 +1513,11 @@ gcc_do_filter_flags() {
# dont want to funk ourselves
filter-flags '-mabi*' -m31 -m32 -m64
+ # on riscv, only specific combinations of march and mabi work... so we
need
+ # to strip both and trust the compiler to do the right thing, otherwise
+ # multilib build fails
+ [[ $(tc-arch) == riscv* ]] && filter-flags '-march*'
+
filter-flags -frecord-gcc-switches # 490738
filter-flags -mno-rtm -mno-htm # 506202
