94 lines
1.8 KiB
Makefile
94 lines
1.8 KiB
Makefile
# Makefile for shared libc static library on MontaukOS
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# Copyright (c) 2025-2026 Daniel Hammer
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MAKEFLAGS += -rR
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.SUFFIXES:
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# ---- Toolchain ----
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TOOLCHAIN_PREFIX := $(shell cd ../../.. && pwd)/toolchain/local/bin/x86_64-elf-
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ifneq ($(wildcard $(TOOLCHAIN_PREFIX)gcc),)
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CC := $(TOOLCHAIN_PREFIX)gcc
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AR := $(TOOLCHAIN_PREFIX)ar
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else
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CC := gcc
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AR := ar
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endif
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# ---- Paths ----
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LIBC_INC := ../../include/libc
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OBJDIR := obj
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CRTDIR := crt
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ASM_OBJS := $(OBJDIR)/setjmp.o
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# ---- Compiler flags ----
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CFLAGS := \
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-std=gnu11 \
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-g -O2 -pipe \
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-Wall \
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-Wno-unused-parameter \
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-nostdinc \
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-ffreestanding \
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-fno-stack-protector \
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-fno-stack-check \
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-fno-PIC \
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-ffunction-sections \
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-fdata-sections \
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-m64 \
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-march=x86-64 \
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-msse \
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-msse2 \
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-mno-red-zone \
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-mcmodel=small \
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-isystem $(LIBC_INC) \
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-isystem $(shell $(CC) -print-file-name=include)
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CRT_CFLAGS := \
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-std=gnu11 \
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-O2 \
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-nostdinc \
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-ffreestanding \
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-fno-stack-protector \
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-fno-stack-check \
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-fno-PIC \
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-m64 \
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-march=x86-64 \
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-mno-red-zone \
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-fno-tree-loop-distribute-patterns \
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-isystem $(LIBC_INC) \
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-isystem $(shell $(CC) -print-file-name=include)
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# ---- Target ----
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TARGET := liblibc.a
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CRT_OBJS := crt1.o crti.o crtn.o
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.PHONY: all clean
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all: $(TARGET) $(CRT_OBJS)
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$(TARGET): $(OBJDIR)/libc.o $(ASM_OBJS)
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$(AR) rcs $@ $^
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$(OBJDIR)/libc.o: libc.c Makefile
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@mkdir -p $(OBJDIR)
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$(CC) $(CFLAGS) -c $< -o $@
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$(OBJDIR)/setjmp.o: setjmp.S Makefile
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@mkdir -p $(OBJDIR)
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$(CC) $(CFLAGS) -c $< -o $@
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crt1.o: $(CRTDIR)/crt1.c Makefile
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$(CC) $(CRT_CFLAGS) -c $< -o $@
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crti.o: $(CRTDIR)/crti.c Makefile
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$(CC) $(CRT_CFLAGS) -c $< -o $@
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crtn.o: $(CRTDIR)/crtn.c Makefile
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$(CC) $(CRT_CFLAGS) -c $< -o $@
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clean:
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rm -rf $(OBJDIR) $(TARGET) $(CRT_OBJS)
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