From 3972268b97b789a8212ea9bc7d1b9ce9905a68d8 Mon Sep 17 00:00:00 2001
From: Vladimir Azarov <avm@intermediate-node.net>
Date: Sun, 13 Oct 2024 20:54:32 +0200
Subject: Base library for tools and sed utility

---
 Makefile | 39 +++++++++++++++++++++++++++++++--------
 1 file changed, 31 insertions(+), 8 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index aeb1325..113c375 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 AR = ar
 CC = gcc
-CFLAGS = -Wall -g -O3 -march=native
+CFLAGS = -O0 -g -Wall
 
 arch = x86_64
 
@@ -41,20 +41,42 @@ all_inc = $(sort $(inc) $(generated_headers:generated/%=%) \
 	  $(arch_inc:arch/$(arch)/%=include/%) \
 	  $(generic_inc:arch/generic/%=include/%))
 
+dirs = $(sort $(dir $(generated_headers)))
+
+### Tools ###
+
+gcc_prefix = $(dir $(shell gcc -print-libgcc-file-name))
+
+tool_cflags = -Wall -nostdinc -Wno-main \
+		-ffreestanding -fno-pic -fno-stack-protector \
+		-Igenerated/include -Iarch/$(arch) \
+		-I /usr/lib/clang/17/include \
+		-Iarch/generic $(CFLAGS)
+
+.PRECIOUS: $(addprefix tools/, common.o sed.o)
+
+tools/%.o: tools/%.c tools/common.h
+	$(CC) $(tool_cflags) -c -o $@ $<
+
+tools/%: tools/%.o tools/common.o
+	ld -L$(gcc_prefix) -nostdlib -o $@ $^ -lgcc
+
+### Musl ###
+
 default: $(lib_obj)
 
-generated_dirs:
-	mkdir -p $(dir $(generated_headers))
+$(dirs):
+	mkdir -p $@
 
-$(generated_headers): | generated_dirs
+$(generated_headers): | $(dirs)
 
 generated/include/bits/alltypes.h: arch/$(arch)/bits/alltypes.h.in \
-	include/alltypes.h.in
-	sed -f tools/mkalltypes.sed $^ >$@
+	include/alltypes.h.in tools/sed
+	cat $(filter %.in, $^) | tools/sed -f tools/mkalltypes.sed >$@
 
-generated/include/bits/syscall.h: arch/$(arch)/bits/syscall.h.in
+generated/include/bits/syscall.h: arch/$(arch)/bits/syscall.h.in tools/sed
 	cp $< $@
-	sed -n  -e 's/__NR_/SYS_/p' < $< >>$@
+	tools/sed 's/__NR_/SYS_/' < $< >>$@
 
 src/internal/version.o: cflags += -DVERSION=\"$(shell cat VERSION)\"
 crt/crt1.o: arch/$(arch)/crt_arch.h
@@ -105,3 +127,4 @@ install: install-libs install-headers
 clean:
 	rm -rf generated
 	rm -f crt/*.o src/*/*.o libc.a crt1.o crti.o crtn.o
+	rm -f tools/*.o tools/sed
-- 
cgit v1.2.3