From de76f7cc82eedac5653283a99c1c7083d7a0d43b Mon Sep 17 00:00:00 2001 From: Alexey Brodkin Date: Wed, 24 Apr 2019 14:49:45 +0300 Subject: ARC: Support building of multi-lib Glibc toolchain From GCC's standpoint ARC's multilib items are defined by "mcpu" values which we have quite a few and for all of them might be built optimized cross-toolchain. From Glibc's standpoint multilib is just multi-ABI [1] and so very limited versions are supposed to co-exist (e.g. arc700 & archs). Here we force Glibc to install libraries in GCC's multilib folder to create a universal cross-toolchain that has libs optimized for multiple CPU types. But note we only need to mess with installation paths in case of real multilib, otherwise we keep default "lib/" paths so that GCC finds default (the one and only) libs where it expects them to be. Also here we add a sample which allows to build universal Glibc Linux toolchain for ARC. [1] https://sourceware.org/ml/libc-alpha/2019-06/msg00018.html Signed-off-by: Alexey Brodkin --- samples/arc-multilib-linux-gnu/crosstool.config | 7 +++++++ samples/arc-multilib-linux-gnu/reported.by | 3 +++ 2 files changed, 10 insertions(+) create mode 100644 samples/arc-multilib-linux-gnu/crosstool.config create mode 100644 samples/arc-multilib-linux-gnu/reported.by (limited to 'samples/arc-multilib-linux-gnu') diff --git a/samples/arc-multilib-linux-gnu/crosstool.config b/samples/arc-multilib-linux-gnu/crosstool.config new file mode 100644 index 00000000..3dc78027 --- /dev/null +++ b/samples/arc-multilib-linux-gnu/crosstool.config @@ -0,0 +1,7 @@ +CT_CONFIG_VERSION="3" +CT_ARCH_ARC=y +CT_MULTILIB=y +CT_TARGET_CFLAGS="-matomic" +CT_TARGET_VENDOR="multilib" +CT_TARGET_ALIAS="arc-linux" +CT_KERNEL_LINUX=y diff --git a/samples/arc-multilib-linux-gnu/reported.by b/samples/arc-multilib-linux-gnu/reported.by new file mode 100644 index 00000000..e98760ae --- /dev/null +++ b/samples/arc-multilib-linux-gnu/reported.by @@ -0,0 +1,3 @@ +reporter_name="Alexey Brodkin" +reporter_url="http://embarc.org" +reporter_comment="ARC multilib GNU Linux toolchain" -- cgit v1.2.3