rulimine/decompressor/GNUmakefile

include $(CROSS_FILE)

BUILDDIR ?=

override SPACE := $(subst ,, )

MKESCAPE = $(subst $(SPACE),\ ,$(1))
SHESCAPE = $(subst ','\'',$(1))
OBJESCAPE = $(subst .a ,.a' ',$(subst .o ,.o' ',$(call SHESCAPE,$(1))))

ifeq ($(call MKESCAPE,$(BUILDDIR)), )
	$(error BUILDDIR not specified)
endif

override CROSS_CFLAGS += \
	$(WERROR) \
    -Os \
	-m32 \
	-march=i686 \
	-mtune=generic \
	-mabi=sysv \
	-std=gnu11 \
	-ffreestanding \
	-fno-stack-protector \
	-fno-stack-check \
	-fno-strict-aliasing \
	-fno-lto \
	-fno-pie \
	-fno-pic \
	-fomit-frame-pointer \
	-nostdinc \
	-Wno-address-of-packed-member \
	-Wshadow \
	-Wvla \
	-mno-80387 \
	-mno-mmx \
	-mno-sse \
	-mno-sse2 \
	-MMD \
	-I../freestanding-headers \
	-I. \
	-I'$(call SHESCAPE,$(BUILDDIR))/tinf'

override CROSS_LDFLAGS += \
	-melf_i386 \
	-nostdlib \
	-z max-page-size=0x1000 \
	-static \
	-Tlinker.ld

override C_FILES := $(shell find ./ -type f -name '*.c')
override ASM_FILES := $(shell find ./ -type f -name '*.asm')
override OBJ := $(addprefix $(call MKESCAPE,$(BUILDDIR))/, $(ASM_FILES:.asm=.o) $(C_FILES:.c=.o))
override HEADER_DEPS := $(addprefix $(call MKESCAPE,$(BUILDDIR))/, $(C_FILES:.c=.d))

.PHONY: all
all: $(call MKESCAPE,$(BUILDDIR))/decompressor.bin

$(call MKESCAPE,$(BUILDDIR))/decompressor.bin: $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o
	$(CROSS_LD) '$(call OBJESCAPE,$^)' $(CROSS_LDFLAGS) -o '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf'
	$(CROSS_OBJCOPY) -O binary '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf' '$(call SHESCAPE,$@)'

$(call MKESCAPE,$(BUILDDIR))/tinf-copied: ../tinf/*
	rm -rf '$(call SHESCAPE,$(BUILDDIR))/tinf'
	$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'
	cp -r ../tinf '$(call SHESCAPE,$(BUILDDIR))/'
	touch '$(call SHESCAPE,$(BUILDDIR))/tinf-copied'

$(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o: $(call MKESCAPE,$(BUILDDIR))/tinf-copied
	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
	$(CROSS_CC) $(CROSS_CFLAGS) -c '$(call SHESCAPE,$(@:.o=.c))' -o '$(call SHESCAPE,$@)'

$(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o: $(call MKESCAPE,$(BUILDDIR))/tinf-copied
	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
	$(CROSS_CC) $(CROSS_CFLAGS) -c '$(call SHESCAPE,$(@:.o=.c))' -o '$(call SHESCAPE,$@)'

-include $(HEADER_DEPS)

$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/tinf-copied
	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
	$(CROSS_CC) $(CROSS_CFLAGS) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'

$(call MKESCAPE,$(BUILDDIR))/%.o: %.asm
	$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"
	nasm '$(call SHESCAPE,$<)' -f elf32 -o '$(call SHESCAPE,$@)'
build: Move to using external cross-detect package 2022-07-05 10:14:48 +03:00			`include $(CROSS_FILE)`
build: Add toolchain-detect 2022-06-15 08:16:41 +03:00
build: Makefile improvements 2022-01-02 14:45:15 +03:00			`BUILDDIR ?=`
misc: Disentangle Makefiles so it builds fine with -j 2021-03-08 05:05:39 +03:00
build: Makefile improvements 2021-12-08 19:41:19 +03:00			`override SPACE := $(subst ,, )`
build: Initial support for special characters in build path 2021-11-28 21:00:49 +03:00
build: Fix up MKESCAPE macro logic 2021-11-28 21:14:34 +03:00			`MKESCAPE = $(subst $(SPACE),\ ,$(1))`
build: Initial support for special characters in build path 2021-11-28 21:00:49 +03:00			`SHESCAPE = $(subst ','\'',$(1))`
			`OBJESCAPE = $(subst .a ,.a' ',$(subst .o ,.o' ',$(call SHESCAPE,$(1))))`

			`ifeq ($(call MKESCAPE,$(BUILDDIR)), )`
build: Makefile improvements 2021-12-08 19:41:19 +03:00			`$(error BUILDDIR not specified)`
misc: Disentangle Makefiles so it builds fine with -j 2021-03-08 05:05:39 +03:00			`endif`
Decompressor (#23) * Add decompressor infrastructure * Fix up everything * Add a gzip decompressor (#22) Co-authored-by: Matteo Semenzato <mattew8898@gmail.com> 2020-09-06 04:35:32 +03:00
build: Update makefiles to not use INTERNAL variables 2022-08-15 17:37:31 +03:00			`override CROSS_CFLAGS += \`
build: Misc build system improvements 2022-01-17 00:41:37 +03:00			`$(WERROR) \`
build: Update makefiles to not use INTERNAL variables 2022-08-15 17:37:31 +03:00			`-Os \`
build: Generally rework build system to easily allow 3rd party toolchains to be used. Drop reliance on libgcc for BIOS builds by shipping our own routines instead 2021-04-03 01:48:38 +03:00			`-m32 \`
build: Compile BIOS Limine for i686 instead of i386 2021-11-10 15:18:08 +03:00			`-march=i686 \`
build: Pass -mtune=generic 2021-10-11 22:35:23 +03:00			`-mtune=generic \`
build: Pass -mabi=sysv to cc 2021-07-31 22:28:06 +03:00			`-mabi=sysv \`
Fix some warnings in the decompressor and do not use special symbol main() for entry points 2020-09-18 23:15:27 +03:00			`-std=gnu11 \`
Decompressor (#23) * Add decompressor infrastructure * Fix up everything * Add a gzip decompressor (#22) Co-authored-by: Matteo Semenzato <mattew8898@gmail.com> 2020-09-06 04:35:32 +03:00			`-ffreestanding \`
Switch back to GCC 2020-09-13 15:36:18 +03:00			`-fno-stack-protector \`
build: Pass -fno-stack-check in decompressor build 2022-03-02 17:55:15 +03:00			`-fno-stack-check \`
misc: Disable strict aliasing, just in case 2022-01-25 11:16:26 +03:00			`-fno-strict-aliasing \`
misc: Do not rely on libc-provided headers 2022-01-20 07:17:45 +03:00			`-fno-lto \`
build: Generally rework build system to easily allow 3rd party toolchains to be used. Drop reliance on libgcc for BIOS builds by shipping our own routines instead 2021-04-03 01:48:38 +03:00			`-fno-pie \`
build: Always place -fno-pie before -fno-pic 2022-08-09 16:22:15 +03:00			`-fno-pic \`
Reorganise source tree 2020-09-14 20:32:11 +03:00			`-fomit-frame-pointer \`
misc: Do not rely on libc-provided headers 2022-01-20 07:17:45 +03:00			`-nostdinc \`
Add header dependencies to Makefiles 2020-09-21 13:46:42 +03:00			`-Wno-address-of-packed-member \`
misc: Make VLAs a warning 2022-02-18 03:09:51 +03:00			`-Wshadow \`
			`-Wvla \`
build: Revert usage of -mgeneral-regs-only 2021-05-22 11:26:56 +03:00			`-mno-80387 \`
			`-mno-mmx \`
			`-mno-sse \`
			`-mno-sse2 \`
Add header dependencies to Makefiles 2020-09-21 13:46:42 +03:00			`-MMD \`
build: Rename freestanding-headers to match upstream 2022-06-30 08:48:42 +03:00			`-I../freestanding-headers \`
build: De-symlink tinf 2021-10-22 21:08:11 +03:00			`-I. \`
build: Initial support for special characters in build path 2021-11-28 21:00:49 +03:00			`-I'$(call SHESCAPE,$(BUILDDIR))/tinf'`
Decompressor (#23) * Add decompressor infrastructure * Fix up everything * Add a gzip decompressor (#22) Co-authored-by: Matteo Semenzato <mattew8898@gmail.com> 2020-09-06 04:35:32 +03:00
build: Update makefiles to not use INTERNAL variables 2022-08-15 17:37:31 +03:00			`override CROSS_LDFLAGS += \`
build: Use linker directly instead of going thru compiler; ensure we are buildable with an llvm toolchain 2021-05-31 01:32:43 +03:00			`-melf_i386 \`
Decompressor (#23) * Add decompressor infrastructure * Fix up everything * Add a gzip decompressor (#22) Co-authored-by: Matteo Semenzato <mattew8898@gmail.com> 2020-09-06 04:35:32 +03:00			`-nostdlib \`
Fix issue with int 13h DAP potentially not fitting within a single real mode segment; load stage 2 at 0x8000 and disable LTO as it is broken for some unknown reasons now 2020-09-25 23:36:26 +03:00			`-z max-page-size=0x1000 \`
Switch back to GCC 2020-09-13 15:36:18 +03:00			`-static \`
			`-Tlinker.ld`
Decompressor (#23) * Add decompressor infrastructure * Fix up everything * Add a gzip decompressor (#22) Co-authored-by: Matteo Semenzato <mattew8898@gmail.com> 2020-09-06 04:35:32 +03:00
build: Misc portability improvements 2022-01-22 05:10:25 +03:00			`override C_FILES := $(shell find ./ -type f -name '*.c')`
Revert "decompressor: Use as instead of nasm" This reverts commit 39559b39ff2b29329f69ddf30cb6dcebf5cbd701. 2022-05-19 21:12:48 +03:00			`override ASM_FILES := $(shell find ./ -type f -name '*.asm')`
			`override OBJ := $(addprefix $(call MKESCAPE,$(BUILDDIR))/, $(ASM_FILES:.asm=.o) $(C_FILES:.c=.o))`
build: Makefile improvements 2021-12-08 19:41:19 +03:00			`override HEADER_DEPS := $(addprefix $(call MKESCAPE,$(BUILDDIR))/, $(C_FILES:.c=.d))`
Decompressor (#23) * Add decompressor infrastructure * Fix up everything * Add a gzip decompressor (#22) Co-authored-by: Matteo Semenzato <mattew8898@gmail.com> 2020-09-06 04:35:32 +03:00
build: Makefile improvements 2021-12-08 19:41:19 +03:00			`.PHONY: all`
			`all: $(call MKESCAPE,$(BUILDDIR))/decompressor.bin`
misc: Initial Makefile rework 2021-03-08 02:50:23 +03:00
build: Use libgcc-binaries 2022-06-21 09:47:48 +03:00			`$(call MKESCAPE,$(BUILDDIR))/decompressor.bin: $(OBJ) ../libgcc-binaries/libgcc-i686.a $(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o $(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o`
build: Update makefiles to not use INTERNAL variables 2022-08-15 17:37:31 +03:00			`$(CROSS_LD) '$(call OBJESCAPE,$^)' $(CROSS_LDFLAGS) -o '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf'`
build: Move to using external cross-detect package 2022-07-05 10:14:48 +03:00			`$(CROSS_OBJCOPY) -O binary '$(call SHESCAPE,$(BUILDDIR))/decompressor.elf' '$(call SHESCAPE,$@)'`
Decompressor (#23) * Add decompressor infrastructure * Fix up everything * Add a gzip decompressor (#22) Co-authored-by: Matteo Semenzato <mattew8898@gmail.com> 2020-09-06 04:35:32 +03:00
build: Initial support for special characters in build path 2021-11-28 21:00:49 +03:00			`$(call MKESCAPE,$(BUILDDIR))/tinf-copied: ../tinf/*`
			`rm -rf '$(call SHESCAPE,$(BUILDDIR))/tinf'`
build: Get proper mkdir -p from autoconf 2022-08-08 23:00:25 +03:00			`$(MKDIR_P) '$(call SHESCAPE,$(BUILDDIR))'`
build: Initial support for special characters in build path 2021-11-28 21:00:49 +03:00			`cp -r ../tinf '$(call SHESCAPE,$(BUILDDIR))/'`
			`touch '$(call SHESCAPE,$(BUILDDIR))/tinf-copied'`
build: De-symlink tinf 2021-10-22 21:08:11 +03:00
build: Disentangle some makefile targets 2022-01-18 00:13:19 +03:00			`$(call MKESCAPE,$(BUILDDIR))/tinf/tinfgzip.o: $(call MKESCAPE,$(BUILDDIR))/tinf-copied`
build: Get proper mkdir -p from autoconf 2022-08-08 23:00:25 +03:00			`$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"`
build: Update makefiles to not use INTERNAL variables 2022-08-15 17:37:31 +03:00			`$(CROSS_CC) $(CROSS_CFLAGS) -c '$(call SHESCAPE,$(@:.o=.c))' -o '$(call SHESCAPE,$@)'`
build: Disentangle some makefile targets 2022-01-18 00:13:19 +03:00
			`$(call MKESCAPE,$(BUILDDIR))/tinf/tinflate.o: $(call MKESCAPE,$(BUILDDIR))/tinf-copied`
build: Get proper mkdir -p from autoconf 2022-08-08 23:00:25 +03:00			`$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"`
build: Update makefiles to not use INTERNAL variables 2022-08-15 17:37:31 +03:00			`$(CROSS_CC) $(CROSS_CFLAGS) -c '$(call SHESCAPE,$(@:.o=.c))' -o '$(call SHESCAPE,$@)'`
build: De-symlink tinf 2021-10-22 21:08:11 +03:00
Add header dependencies to Makefiles 2020-09-21 13:46:42 +03:00			`-include $(HEADER_DEPS)`

build: Initial support for special characters in build path 2021-11-28 21:00:49 +03:00			`$(call MKESCAPE,$(BUILDDIR))/%.o: %.c $(call MKESCAPE,$(BUILDDIR))/tinf-copied`
build: Get proper mkdir -p from autoconf 2022-08-08 23:00:25 +03:00			`$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"`
build: Update makefiles to not use INTERNAL variables 2022-08-15 17:37:31 +03:00			`$(CROSS_CC) $(CROSS_CFLAGS) -c '$(call SHESCAPE,$<)' -o '$(call SHESCAPE,$@)'`
Decompressor (#23) * Add decompressor infrastructure * Fix up everything * Add a gzip decompressor (#22) Co-authored-by: Matteo Semenzato <mattew8898@gmail.com> 2020-09-06 04:35:32 +03:00
Revert "decompressor: Use as instead of nasm" This reverts commit 39559b39ff2b29329f69ddf30cb6dcebf5cbd701. 2022-05-19 21:12:48 +03:00			`$(call MKESCAPE,$(BUILDDIR))/%.o: %.asm`
build: Get proper mkdir -p from autoconf 2022-08-08 23:00:25 +03:00			`$(MKDIR_P) "$$(dirname '$(call SHESCAPE,$@)')"`
Revert "decompressor: Use as instead of nasm" This reverts commit 39559b39ff2b29329f69ddf30cb6dcebf5cbd701. 2022-05-19 21:12:48 +03:00			`nasm '$(call SHESCAPE,$<)' -f elf32 -o '$(call SHESCAPE,$@)'`