build: Even more portability improvements
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mintsuki
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64467c06d8
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@ -16,8 +16,6 @@ NASMESCAPE = $(subst ','"'$(COMMA) \"'\"$(COMMA) '"',$(1))
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override PATH := $(BUILDDIR)/toolchain/bin:$(PATH)
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export PATH
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override NCPUS := $(shell nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 1)
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override LIMINE_VERSION := @limine_version@
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export LIMINE_VERSION
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@ -82,7 +80,7 @@ export LIMINE_OBJCOPY
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export LIMINE_OBJDUMP
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export LIMINE_READELF
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override USING_CLANG := $(shell $(LIMINE_CC) --version | grep clang >/dev/null && echo 1)
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override USING_CLANG := $(shell PATH='$(call SHESCAPE,$(PATH))' $(LIMINE_CC) --version | grep clang >/dev/null && echo 1)
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export USING_CLANG
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ifeq ($(USING_CLANG), 1)
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@ -92,26 +90,25 @@ endif
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override CC_MACHINE := $(shell PATH='$(call SHESCAPE,$(PATH))' $(LIMINE_CC) -dumpmachine | dd bs=6 count=1 2>/dev/null)
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ifneq ($(MAKECMDGOALS), toolchain)
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ifneq ($(MAKECMDGOALS), clean)
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ifneq ($(MAKECMDGOALS), distclean)
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ifneq ($(MAKECMDGOALS), maintainer-clean)
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ifneq ($(MAKECMDGOALS), uninstall)
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ifneq ($(MAKECMDGOALS), dist)
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override USING_GNU_LD := $(shell $(LIMINE_LD) --version | grep Binutils >/dev/null && echo 1)
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override USING_GNU_LD := $(shell PATH='$(call SHESCAPE,$(PATH))' $(LIMINE_LD) --version | grep Binutils >/dev/null && echo 1)
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ifneq ($(USING_GNU_LD), 1)
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$(error The specified LIMINE_LD linker ($(LIMINE_LD)) is not the GNU linker)
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endif
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override USING_GNU_OBJCOPY := $(shell $(LIMINE_OBJCOPY) --version | grep Binutils >/dev/null && echo 1)
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override USING_GNU_OBJCOPY := $(shell PATH='$(call SHESCAPE,$(PATH))' $(LIMINE_OBJCOPY) --version | grep Binutils >/dev/null && echo 1)
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ifneq ($(USING_GNU_OBJCOPY), 1)
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$(error The specified LIMINE_OBJCOPY ($(LIMINE_OBJCOPY)) is not GNU objcopy)
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endif
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ifneq ($(CC_MACHINE), x86_64)
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ifneq ($(CC_MACHINE), amd64-)
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$(error No suitable x86_64 C compiler found, please install an x86_64 C toolchain or run "make toolchain")
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$(error No suitable x86_64 C compiler found, please install an x86_64 C toolchain or run "./make_toolchain.sh")
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endif
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endif
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@ -120,7 +117,6 @@ endif
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endif
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endif
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endif
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endif
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ifeq ($(USING_CLANG), 1)
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override LIMINE_CC := $(ORIG_LIMINE_CC)
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@ -278,10 +274,6 @@ test-clean:
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$(MAKE) -C test clean
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rm -rf test_image test.hdd test.iso
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.PHONY: toolchain
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toolchain:
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MAKE="$(MAKE)" '$(call SHESCAPE,$(SRCDIR))'/build-aux/make_toolchain.sh '$(call SHESCAPE,$(BUILDDIR))'/toolchain -j$(NCPUS)
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ovmf-x64:
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mkdir -p ovmf-x64
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cd ovmf-x64 && curl -o OVMF-X64.zip https://efi.akeo.ie/OVMF/OVMF-X64.zip && 7z x OVMF-X64.zip
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46
README.md
46
README.md
@ -66,6 +66,29 @@ release.
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*These steps are not necessary if cloning a binary release. If so, skip to*
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*"Installing Limine binaries".*
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### Building the toolchain
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This step can take a long time, but it will ensure that the toolchain will work
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with Limine. If on an x86_64 host, with GCC or Clang installed, you can skip to
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the next paragraph in order to use the system's toolchain instead.
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The toolchain's build process depends on the following packages: `GNU make`,
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`curl`, `gzip`, `bzip2`, `gcc/clang`, `g++/clang++`.
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Building the toolchain can be accomplished by running:
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```bash
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./make_toolchain.sh
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```
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### Prerequisites
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In order to build Limine, the following packages have to be installed:
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`GNU make`, `nasm`, `mtools` (optional, necessary to build
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`limine-eltorito-efi.bin`).
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Furthermore, either the toolchain must have been built in the previous
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paragraph, or `gcc` or `llvm/clang` must also be installed, alongside
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`GNU binutils`.
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### Configure
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If checking out from the repository, run `./autogen.sh`, else, if using a
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@ -78,30 +101,9 @@ Limine supports both in-tree and out-of-tree builds. Simply run the configure
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script from the directory you wish to execute the build in. The following `make`
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commands are supposed to be ran inside the build directory.
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### Building the toolchain
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This step can take a long time, but it will ensure that the toolchain will work
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with Limine. If on an x86_64 host, with GCC or Clang installed, you can skip to
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the next paragraph in order to use the system's toolchain instead.
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The toolchain's build process depends on the following packages: `GNU make`,
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`curl`, `gzip`, `bzip2`, `gcc/clang`, `g++/clang++`.
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Building the toolchain can be accomplished by running:
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```bash
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make toolchain # (or gmake where applicable)
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```
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### Building Limine
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In order to build Limine, the following packages have to be installed:
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`GNU make`, `nasm`, `mtools` (optional, necessary to build
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`limine-eltorito-efi.bin`).
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Furthermore, either the toolchain must have been built in the previous
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paragraph, or `gcc` or `llvm/clang` must also be installed, alongside
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`GNU binutils`.
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Then, to build Limine, run:
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To build Limine, run:
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```bash
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make # (or gmake where applicable)
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```
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@ -2,10 +2,21 @@
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set -ex
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srcdir="$(realpath $(dirname "$0"))"
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test -z "$srcdir" && srcdir=.
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cd "$srcdir"
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TARGET=x86_64-elf
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BINUTILSVERSION=2.37
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GCCVERSION=11.2.0
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if command -v gmake; then
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export MAKE=gmake
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else
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export MAKE=make
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fi
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export CFLAGS="-O2 -pipe"
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unset CC
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@ -18,10 +29,10 @@ if [ "$(uname)" = "OpenBSD" ]; then
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export CXX="clang++"
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fi
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mkdir -p "$1" && cd "$1"
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mkdir -p toolchain && cd toolchain
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PREFIX="$(pwd)"
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export MAKEFLAGS="$2"
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export MAKEFLAGS="-j$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 1)"
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export PATH="$PREFIX/bin:$PATH"
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@ -7,7 +7,7 @@ export LC_ALL=C
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TMP0=$(mktemp)
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cat >"$TMP0" <<EOF
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#!/bin/sh
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#! /bin/sh
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set -e
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