From b078bb09dd3e460788d914a07adf3f4f53c86494 Mon Sep 17 00:00:00 2001 From: Alexey Brodkin Date: Tue, 15 May 2018 18:36:24 +0300 Subject: ARC: Add Linux uClibc multilib sample Signed-off-by: Alexey Brodkin --- samples/arc-multilib-linux-uclibc/crosstool.config | 7 +++++++ samples/arc-multilib-linux-uclibc/reported.by | 3 +++ 2 files changed, 10 insertions(+) create mode 100644 samples/arc-multilib-linux-uclibc/crosstool.config create mode 100644 samples/arc-multilib-linux-uclibc/reported.by (limited to 'samples') diff --git a/samples/arc-multilib-linux-uclibc/crosstool.config b/samples/arc-multilib-linux-uclibc/crosstool.config new file mode 100644 index 00000000..b56c8a8b --- /dev/null +++ b/samples/arc-multilib-linux-uclibc/crosstool.config @@ -0,0 +1,7 @@ +CT_ARCH_ARC=y +CT_TARGET_ALIAS="arc-linux" +CT_TARGET_CFLAGS="-matomic" +CT_TARGET_VENDOR="multilib" +CT_KERNEL_LINUX=y +CT_LIBC_UCLIBC=y +CT_MULTILIB=y diff --git a/samples/arc-multilib-linux-uclibc/reported.by b/samples/arc-multilib-linux-uclibc/reported.by new file mode 100644 index 00000000..59fc53ae --- /dev/null +++ b/samples/arc-multilib-linux-uclibc/reported.by @@ -0,0 +1,3 @@ +reporter_name="Alexey Brodkin" +reporter_url="http://embarc.org" +reporter_comment="ARC multilib uClibc Linux toolchain" -- cgit v1.2.3 From 409046f91d18f4f80f044f2e9c08c0e9e04eeb92 Mon Sep 17 00:00:00 2001 From: Alexey Brodkin Date: Mon, 21 May 2018 13:33:50 +0300 Subject: ARC: Update Linux samples There's no point in keeping samples which are in its essense just a sub-set of multilib toolchain. But still we'd like to cover quite unusual but really existing case - ARC750, i.e. ARC700 with MMU but without so-called atomic instructions (LLOCK/SCOND). To support this HW variation we need: 1) Compile all target binaries without "-matomics" or even better "-mno-atomics" so that's even future-proof (as we may decide to enable "-matomics" by default for Linux targets which is a recommented setup). 2) Configure libc such that it uses Linux-kernel-assisted implementation of atomic operation via "arc_usr_cmpxchg" syscall, see https://cgit.uclibc-ng.org/cgi/cgit/uclibc-ng.git/commit/?id=b985fa069187e4c5a7ee84213d9fbead2f219ce5 Signed-off-by: Alexey Brodkin --- samples/arc-arc700-linux-uclibc/crosstool.config | 2 +- samples/arc-arc700-linux-uclibc/reported.by | 2 +- samples/arc-archs-linux-uclibc/crosstool.config | 7 ------- samples/arc-archs-linux-uclibc/reported.by | 3 --- 4 files changed, 2 insertions(+), 12 deletions(-) delete mode 100644 samples/arc-archs-linux-uclibc/crosstool.config delete mode 100644 samples/arc-archs-linux-uclibc/reported.by (limited to 'samples') diff --git a/samples/arc-arc700-linux-uclibc/crosstool.config b/samples/arc-arc700-linux-uclibc/crosstool.config index e7b298b3..66a0b52c 100644 --- a/samples/arc-arc700-linux-uclibc/crosstool.config +++ b/samples/arc-arc700-linux-uclibc/crosstool.config @@ -1,6 +1,6 @@ CT_ARCH_ARC=y CT_TARGET_ALIAS="arc-linux" -CT_TARGET_CFLAGS="-matomic" +CT_TARGET_CFLAGS="-mno-atomic" CT_TARGET_VENDOR="snps" CT_KERNEL_LINUX=y CT_LIBC_UCLIBC=y diff --git a/samples/arc-arc700-linux-uclibc/reported.by b/samples/arc-arc700-linux-uclibc/reported.by index 9019567a..a493696e 100644 --- a/samples/arc-arc700-linux-uclibc/reported.by +++ b/samples/arc-arc700-linux-uclibc/reported.by @@ -1,3 +1,3 @@ reporter_name="Alexey Brodkin" reporter_url="http://embarc.org" -reporter_comment="ARCompact default Linux toolchain" +reporter_comment="ARCompact uClibc Linux toolchain without atomics" diff --git a/samples/arc-archs-linux-uclibc/crosstool.config b/samples/arc-archs-linux-uclibc/crosstool.config deleted file mode 100644 index b1792e16..00000000 --- a/samples/arc-archs-linux-uclibc/crosstool.config +++ /dev/null @@ -1,7 +0,0 @@ -CT_ARCH_ARC=y -CT_TARGET_ALIAS="arc-linux" -CT_TARGET_CFLAGS="-matomic" -CT_TARGET_VENDOR="snps" -CT_KERNEL_LINUX=y -CT_LIBC_UCLIBC=y -CT_ARCH_CPU="hs38" diff --git a/samples/arc-archs-linux-uclibc/reported.by b/samples/arc-archs-linux-uclibc/reported.by deleted file mode 100644 index 59f194c0..00000000 --- a/samples/arc-archs-linux-uclibc/reported.by +++ /dev/null @@ -1,3 +0,0 @@ -reporter_name="Alexey Brodkin" -reporter_url="http://embarc.org" -reporter_comment="ARCv2 default Linux toolchain" -- cgit v1.2.3