[Buildroot] [PATCH v4 02/10] package/gcc-bare-metal: new package
Neal Frager
neal.frager at amd.com
Sun Sep 24 15:11:57 UTC 2023
This patch adds a new package for building gcc for a bare-metal toolchain.
The cpu architecture is defined by a toolchain-bare-metal virtual package.
While any cpu architecture could be used, the default configuration will be a
Xilinx microblaze little endian architecture, so that buildroot will be able
to build the microblaze firmware applications for zynqmp and versal.
When configured for the Xilinx microblaze architecture, all of the gcc
patches that are applied to the Xilinx distributed toolchain will be applied
in order to generate a toolchain that is equivalent to what Xilinx distributes.
Signed-off-by: Ibai Erkiaga-Elorza <ibai.erkiaga-elorza at amd.com>
Signed-off-by: Neal Frager <neal.frager at amd.com>
---
V1->V2:
- removed default enable to be replaced with toolchain select config
V2->V3:
- no changes
V3->V4:
- split tar instruction into multiple lines
- replaced unnecessary =? with = for assignments
- changed xlnx-rel-v2023.1.tar.gz hash to sha256
- improved menuconfig help comment
---
DEVELOPERS | 2 +
package/gcc-bare-metal/Config.in.host | 12 ++++
package/gcc-bare-metal/gcc-bare-metal.hash | 5 ++
package/gcc-bare-metal/gcc-bare-metal.mk | 70 ++++++++++++++++++++++
4 files changed, 89 insertions(+)
create mode 100644 package/gcc-bare-metal/Config.in.host
create mode 100644 package/gcc-bare-metal/gcc-bare-metal.hash
create mode 100644 package/gcc-bare-metal/gcc-bare-metal.mk
diff --git a/DEVELOPERS b/DEVELOPERS
index 046f8f7874..284a231f7f 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -1352,6 +1352,7 @@ F: package/python-rpi-gpio/
N: Ibai Erkiaga-Elorza <ibai.erkiaga-elorza at amd.com>
F: package/binutils-bare-metal/
+F: package/gcc-bare-metal/
N: Ignacy Gawędzki <ignacy.gawedzki at green-communications.fr>
F: package/angularjs/
@@ -2183,6 +2184,7 @@ F: configs/zynqmp_zcu102_defconfig
F: configs/zynqmp_zcu106_defconfig
F: package/binutils-bare-metal/
F: package/bootgen/
+F: package/gcc-bare-metal/
F: package/versal-firmware/
N: Nicola Di Lieto <nicola.dilieto at gmail.com>
diff --git a/package/gcc-bare-metal/Config.in.host b/package/gcc-bare-metal/Config.in.host
new file mode 100644
index 0000000000..7fdf443511
--- /dev/null
+++ b/package/gcc-bare-metal/Config.in.host
@@ -0,0 +1,12 @@
+config BR2_PACKAGE_HOST_GCC_BARE_METAL
+ bool "host gcc-bare-metal"
+ help
+ Build GCC for a bare-metal toolchain
+
+if BR2_PACKAGE_HOST_GCC_BARE_METAL
+
+config BR2_PACKAGE_HOST_GCC_BARE_METAL_VERSION
+ string
+ default "12.2.0"
+
+endif #BR2_PACKAGE_HOST_GCC_BARE_METAL
diff --git a/package/gcc-bare-metal/gcc-bare-metal.hash b/package/gcc-bare-metal/gcc-bare-metal.hash
new file mode 100644
index 0000000000..56ac845e28
--- /dev/null
+++ b/package/gcc-bare-metal/gcc-bare-metal.hash
@@ -0,0 +1,5 @@
+# From https://gcc.gnu.org/pub/gcc/releases/gcc-12.2.0/sha512.sum
+sha512 e9e857bd81bf7a370307d6848c81b2f5403db8c7b5207f54bce3f3faac3bde63445684092c2bc1a2427cddb6f7746496d9fbbef05fbbd77f2810b2998f1f9173 gcc-12.2.0.tar.xz
+
+# locally calculated
+sha256 5992ce6865468537b84372480f7593125db754f673dccae1ecf6d6a7c74ed88e xlnx-rel-v2023.1.tar.gz
diff --git a/package/gcc-bare-metal/gcc-bare-metal.mk b/package/gcc-bare-metal/gcc-bare-metal.mk
new file mode 100644
index 0000000000..93c17d6520
--- /dev/null
+++ b/package/gcc-bare-metal/gcc-bare-metal.mk
@@ -0,0 +1,70 @@
+################################################################################
+#
+# gcc-bare-metal
+#
+################################################################################
+
+HOST_GCC_BARE_METAL_VERSION = $(call qstrip,$(BR2_PACKAGE_HOST_GCC_BARE_METAL_VERSION))
+ifeq ($(HOST_GCC_BARE_METAL_VERSION),)
+HOST_GCC_BARE_METAL_VERSION = 12.2.0
+endif
+
+HOST_GCC_BARE_METAL_SITE = https://ftp.gnu.org/gnu/gcc/gcc-$(HOST_GCC_BARE_METAL_VERSION)
+HOST_GCC_BARE_METAL_SOURCE = gcc-$(HOST_GCC_BARE_METAL_VERSION).tar.xz
+
+HOST_GCC_BARE_METAL_DEPENDENCIES = host-binutils-bare-metal host-gmp host-mpc host-mpfr host-isl
+
+# if toolchain is for microblazeel-xilinx, apply Xilinx patch set
+ifeq ($(BR2_PACKAGE_HOST_TOOLCHAIN_BARE_METAL_ARCH),"microblazeel-xilinx")
+HOST_GCC_BARE_METAL_EXTRA_DOWNLOADS = https://github.com/Xilinx/meta-xilinx/archive/refs/tags/xlnx-rel-v2023.1.tar.gz
+
+define HOST_GCC_BARE_METAL_EXTRACT_PATCHES
+ mkdir -p $(@D)/patches
+ tar -xf $(HOST_GCC_BARE_METAL_DL_DIR)/xlnx-rel-v2023.1.tar.gz \
+ --strip-components=5 \
+ -C $(@D)/patches \
+ meta-xilinx-xlnx-rel-v2023.1/meta-microblaze/recipes-devtools/gcc/gcc-12
+endef
+HOST_GCC_BARE_METAL_POST_EXTRACT_HOOKS += HOST_GCC_BARE_METAL_EXTRACT_PATCHES
+
+define HOST_GCC_BARE_METAL_APPLY_LOCAL_PATCHES
+ $(APPLY_PATCHES) $(@D) $(@D)/patches *.patch;
+endef
+HOST_GCC_BARE_METAL_POST_PATCH_HOOKS += HOST_GCC_BARE_METAL_APPLY_LOCAL_PATCHES
+endif #ifeq ($(BR2_PACKAGE_HOST_TOOLCHAIN_BARE_METAL_ARCH),"microblazeel-xilinx")
+
+# gcc doesn't support in-tree build, so we create a 'build'
+# subdirectory in the gcc sources, and build from there.
+define GCC_BARE_METAL_CONFIGURE_SYMLINK
+ mkdir -p $(@D)/build
+ ln -sf ../configure $(@D)/build/configure
+endef
+
+HOST_GCC_BARE_METAL_PRE_CONFIGURE_HOOKS += GCC_BARE_METAL_CONFIGURE_SYMLINK
+HOST_GCC_BARE_METAL_SUBDIR = build
+
+HOST_GCC_BARE_METAL_MAKE_OPTS = $(HOST_GCC_COMMON_MAKE_OPTS) all-gcc all-target-libgcc
+HOST_GCC_BARE_METAL_INSTALL_OPTS = install-gcc install-target-libgcc
+
+HOST_GCC_BARE_METAL_CONF_OPTS = \
+ --target=$(BR2_PACKAGE_HOST_TOOLCHAIN_BARE_METAL_ARCH)-elf \
+ --disable-initfini_array \
+ --disable-__cxa_atexit \
+ --disable-libstdcxx-pch \
+ --with-newlib \
+ --disable-threads \
+ --enable-plugins \
+ --with-gnu-as \
+ --disable-libitm \
+ --without-long-double-128 \
+ --without-headers \
+ --enable-languages=c \
+ --disable-multilib \
+ --with-gmp=$(HOST_DIR) \
+ --with-mpc=$(HOST_DIR) \
+ --with-mpfr=$(HOST_DIR) \
+ --with-isl=$(HOST_DIR) \
+ AR_FOR_TARGET=$(O)/host/bin/$(BR2_PACKAGE_HOST_TOOLCHAIN_BARE_METAL_ARCH)-elf-ar \
+ RANLIB_FOR_TARGET=$(O)/host/bin/$(BR2_PACKAGE_HOST_TOOLCHAIN_BARE_METAL_ARCH)-elf-ranlib
+
+$(eval $(host-autotools-package))
--
2.25.1
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