Build stuff

Author: amstrnad

Makefile.isp

@@ -0,0 +1,60 @@
+.PHONY: all
+.PHONY: debug
+.PHONY: release
+.PHONY: install
+.PHONY: clean
+
+export ISP_PREFIX ?= $(HOME)/.local/isp/
+
+ifeq "$(shell isp-support/check_ninja_version)" "System ninja is new enough"
+	NINJA := ninja
+else
+	NINJA := $(HOME)/.local/bin/ninja
+endif
+
+BUILD_TYPE ?= debug
+
+COMMON_CMAKE_FLAGS += -G "Ninja"
+COMMON_CMAKE_FLAGS += -DLLVM_ENABLE_PROJECTS="clang"
+COMMON_CMAKE_FLAGS += -DCMAKE_MAKE_PROGRAM=$(NINJA)
+COMMON_CMAKE_FLAGS += -DCMAKE_INSTALL_PREFIX=$(ISP_PREFIX)
+COMMON_CMAKE_FLAGS += -DCMAKE_C_COMPILER=clang
+COMMON_CMAKE_FLAGS += -DCMAKE_CXX_COMPILER=clang++
+COMMON_CMAKE_FLAGS += -DLLVM_BINUTILS_INCDIR=/usr/include
+COMMON_CMAKE_FLAGS += -DBUILD_SHARED_LIBS=True
+COMMON_CMAKE_FLAGS += -DLLVM_OPTIMIZED_TABLEGEN=True
+COMMON_CMAKE_FLAGS += -DLLVM_BUILD_TESTS=True
+COMMON_CMAKE_FLAGS += -DDEFAULT_SYSROOT=$(ISP_PREFIX)/riscv32-unknown-elf
+COMMON_CMAKE_FLAGS += -DLLVM_DEFAULT_TARGET_TRIPLE="riscv32-unknown-elf"
+COMMON_CMAKE_FLAGS += -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="RISCV"
+COMMON_CMAKE_FLAGS += -DLLVM_TARGETS_TO_BUILD=""
+
+DEBUG_CMAKE_FLAGS := -DCMAKE_BUILD_TYPE=Debug
+DEBUG_CMAKE_FLAGS += -DLLVM_ENABLE_ASSERTIONS=ON
+DEBUG_CMAKE_FLAGS += -DCMAKE_C_FLAGS=-fstandalone-debug
+DEBUG_CMAKE_FLAGS += -DCMAKE_CXX_FLAGS=-fstandalone-debug
+
+RELEASE_CMAKE_FLAGS := -DCMAKE_BUILD_TYPE=Release
+
+debug-build/build.ninja: CMAKE_FLAGS := $(COMMON_CMAKE_FLAGS) $(DEBUG_CMAKE_FLAGS)
+
+release-build/build.ninja: CMAKE_FLAGS := $(COMMON_CMAKE_FLAGS) $(RELEASE_CMAKE_FLAGS)
+
+all: $(BUILD_TYPE)
+
+$(BUILD_TYPE): $(BUILD_TYPE)-build/build.ninja
+	$(NINJA) -C $(BUILD_TYPE)-build
+
+$(BUILD_TYPE)-build/build.ninja:
+	$(RM) -r $(BUILD_TYPE)-build
+	mkdir -p $(BUILD_TYPE)-build
+	cd $(BUILD_TYPE)-build; cmake $(CMAKE_FLAGS) ../llvm
+
+install: $(BUILD_TYPE)-install
+
+debug-install release-install: %-install: $*
+	$(NINJA) -C $*-build install
+
+clean:
+	$(RM) -r debug-build
+	$(RM) -r release-build

isp-support/README

@@ -0,0 +1,26 @@
+Best results obtained by using the gold linker.  Your ld is likely a symlink, 
+point it at ld.gold
+
+Be sure to clone recursively
+
+To build the llvm riscv cross compiler first make sure that you have a riscv
+toolchain installed.  I worked with the instructions here for a clean riscv
+toolchain:
+
+https://github.com/lowRISC/riscv-llvm
+
+Then run the configure script.  I *strongly* recommend you let it install the
+same version of cmake and ninja that I was using (the latest release as of May
+22, 2018).  It will also ask you for the base path to the riscv toolchain.  This
+will enable the cross compiler to actually work, and is where the cross compiler
+will get installed.
+
+./configure.sh
+
+After that, you can build either the debug or release version.  I have been
+working with the debug version during development, and strongly recommend it.
+The release version is currently *untested* and *unsupported*.  
+
+cd debug-build
+ninja
+ninja install

isp-support/check_ninja_version

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+version=`ninja --version`;
+check="1.8.2";
+winner=`echo -e "${version}\n${check}" | sort -nr | head -1`;
+if [[ "${winner}" = "${version}" ]]; then
+    echo "System ninja is new enough"
+    exit 0
+else
+    echo "System ninja is too old"
+    exit 1
+fi

isp-support/install-dependencies

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+set -e
+
+apt-get update
+
+apt-get install -y \
+        binutils-dev \
+        build-essential \
+        clang \
+        cmake \
+        unzip \
+        wget  \
+        zlib1g-dev
+
+ninja_check() {
+    md5sum --quiet -c <<< "540b5a37ac9d822b07179ec1771855ae $HOME/.local/bin/ninja"
+}
+
+if [ -f $HOME/.local/bin/ninja ]; then
+    ninja_check
+else
+    wget https://github.com/ninja-build/ninja/releases/download/v1.8.2/ninja-linux.zip
+    unzip -o ninja-linux.zip
+    mkdir -p $HOME/.local/bin
+    mv ninja $HOME/.local/bin
+    rm ninja-linux.zip
+    ninja_check
+fi