7d2eca8271
make iso recompiled the kernel and every command each time: iso and ramroot wiped build/kernel, build/lib and build/cmd to make sure nothing was compiled for the wrong RAMROOT setting. Only kernel/proc/proc.c and kernel/dev/ramdisk.c read RAMDISK_ROOT, so only their objects go now. Even then a no-op make iso took 69 s, because sysroot.stamp lists every staged file with its mtime and two things re-copied files on every run: the plain cp in etc-install (now cp -p) and fastfetch's install (now install -C). A changed stamp rebuilds the Alpine root, the root image and its zstd -19 compression. A no-op, and a one-file kernel change, now take about 9 s. write.sh read the stick back with a buffered cmp, slowly and possibly from the page cache. It now reads 4 MB at a time with iflag=direct, which checks the stick itself; --no-verify skips the check. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015f73FesGZGYPkmDvUcj6QX
100 lines
4.4 KiB
Makefile
100 lines
4.4 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-or-later
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# fastfetch -- system information, MIT: https://github.com/fastfetch-cli/fastfetch
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#
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# Here because it is a good acceptance test, not because SchOS needs a fetch
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# tool. It is ~410 C files somebody else wrote, against Linux rather than
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# against our bugs, and running it exercises procfs, per-process directories,
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# uname, statfs, getpwuid, terminal detection by walking ppid, and an ANSI
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# renderer -- all at once, and it notices when any of them lies.
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#
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# **It is built unpatched.** patches/ is empty and should stay that way: when
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# fastfetch cannot detect something the right answer is to give the system the
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# thing it is looking for, because every other program looks for the same
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# things. What it could not find on the first run became work in the kernel and
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# in sysroot/etc, not sed lines here.
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include ../mk/port.mk
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FF_VERSION := 2.30.0
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FF_URL := https://github.com/fastfetch-cli/fastfetch/archive/refs/tags/$(FF_VERSION).tar.gz
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FF_SHA256 := 5047f925e480e065e8b28da1e6cc5b31ffdc1ad205ec74a9ea709fb5bcaacd8a
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TARBALL := $(DISTDIR)/fastfetch-$(FF_VERSION).tar.gz
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# Linux UAPI headers. musl deliberately ships none -- a musl toolchain is
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# normally paired with a separate linux-headers install -- and fastfetch's
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# Linux detection includes linux/ethtool.h and friends directly. Overridable
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# because the path is a property of the build host, not of this port.
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LINUX_HEADERS ?= $(shell for d in /usr/include /nix/store/*-linux-headers-*/include; do \
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test -f "$$d/linux/ethtool.h" && { echo "$$d"; break; }; done)
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# gcc rather than port.mk's clang: this is the one port whose upstream expects
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# a GNU-ish driver, and the two disagree about -print-libgcc-file-name.
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HOSTCC_FF ?= gcc
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# The compiler's own headers, which -nostdinc also removes. cpuid.h lives here,
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# not in libc: it is emitted by the compiler and has no musl equivalent.
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GCC_INC := $(shell $(HOSTCC_FF) -print-file-name=include)
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LIBGCC := $(shell $(HOSTCC_FF) -print-libgcc-file-name)
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# Every optional feature off. All 29 files that call dlopen are in optional
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# detection modules, and ENABLE_THREADS=OFF removes the single pthread_create --
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# which matters because SchOS's clone() does not share an address space.
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FF_OFF := VULKAN WAYLAND XCB_RANDR XCB XRANDR X11 DRM DRM_AMDGPU GIO DCONF \
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DBUS XFCONF SQLITE3 RPM IMAGEMAGICK7 IMAGEMAGICK6 CHAFA ZLIB EGL \
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GLX OSMESA OPENCL FREETYPE PULSE DDCUTIL DIRECTX_HEADERS ELF \
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THREADS LIBZFS PCIACCESS SYSTEM_YYJSON LTO
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$(TARBALL): | $(DISTDIR)
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curl -fsSL -o $@ $(FF_URL)
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sh $(SHA256CHECK) "$(FF_SHA256)" "$@"
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download: $(TARBALL)
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$(SRCDIR): $(TARBALL)
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mkdir -p $(PORTDIR)
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rm -rf $@ $(PORTDIR)/fastfetch-$(FF_VERSION)
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tar -xzf $< -C $(PORTDIR)
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mv $(PORTDIR)/fastfetch-$(FF_VERSION) $@
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touch $@
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extract: $(SRCDIR)
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# A toolchain file rather than a pile of -D flags on the command line: CMake
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# only honours CMAKE_*_INIT variables when it creates the cache, so they have to
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# be in place before the first configure. Reconfiguring an existing build
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# directory silently ignores them, which costs an afternoon to notice.
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$(BUILDDIR)/toolchain.cmake: | $(SRCDIR)
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@mkdir -p $(BUILDDIR)
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@test -n "$(LINUX_HEADERS)" || { \
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echo "fastfetch: no linux/ethtool.h found -- set LINUX_HEADERS=" >&2; exit 1; }
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@printf '%s\n' \
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'set(CMAKE_SYSTEM_NAME Linux)' \
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'set(CMAKE_SYSTEM_PROCESSOR x86_64)' \
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'set(CMAKE_C_COMPILER $(HOSTCC_FF))' \
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'set(CMAKE_C_FLAGS_INIT "-nostdinc -isystem $(LINUX_HEADERS) -isystem $(GCC_INC) -isystem $(MUSL)/include -D__SCHOS__ $(CFLAGS_BT)")' \
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'set(CMAKE_EXE_LINKER_FLAGS_INIT "-static -nostdlib -L$(MUSL)/lib $(MUSL)/lib/crt1.o $(MUSL)/lib/crti.o")' \
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'set(CMAKE_C_STANDARD_LIBRARIES "$(MUSL)/lib/libc.a $(LIBGCC) $(MUSL)/lib/libc.a $(MUSL)/lib/crtn.o")' \
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'set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)' \
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> $@
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# libc appears twice on the link line on purpose: libgcc pulls symbols back out
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# of it (__popcountdi2 is the one that shows up), and a static link resolves
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# left to right.
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$(BUILDDIR)/fastfetch: $(BUILDDIR)/toolchain.cmake
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cd $(BUILDDIR) && cmake $(SRCDIR) \
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-DCMAKE_TOOLCHAIN_FILE=$(BUILDDIR)/toolchain.cmake \
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-DCMAKE_BUILD_TYPE=Release \
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$(foreach o,$(FF_OFF),-DENABLE_$(o)=OFF)
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$(MAKE) -C $(BUILDDIR) fastfetch
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build: $(BUILDDIR)/fastfetch
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install: $(BUILDDIR)/fastfetch | $(SYSROOT)/bin
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install -C -m 0755 $(BUILDDIR)/fastfetch $(SYSROOT)/bin/fastfetch
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clean:
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rm -rf $(PORTDIR)
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distclean: clean
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rm -f $(TARBALL)
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