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# Makefile for the bootstrap compiler.
#
# Copyright © 2021-2025 Samuel Lidén Borell <samuel@kodafritt.se>
#
# SPDX-License-Identifier: EUPL-1.2+
srcdir ?= .
builddir ?= .
VPATH ?= $(srcdir)
MKDIR ?= mkdir
MKDIR_P ?= $(MKDIR) -p
RM ?= rm
RM_F ?= $(RM) -f
HOST_CC ?= $(CC)
CFLAGS ?= -g
HOST_CFLAGS ?= $(CFLAGS)
HOST_LDFLAGS ?= $(LDFLAGS)
BASE_WARNINGS = -Wall -Wextra -pedantic \
-Walloca \
-Wbad-function-cast \
-Wcast-align \
-Wconversion \
-Wdate-time \
-Wmissing-declarations \
-Wmissing-prototypes \
-Wmissing-noreturn \
-Wnested-externs \
-Wnull-dereference \
-Wold-style-definition \
-Wshadow \
-Wshift-negative-value \
-Wshift-overflow \
-Wstrict-aliasing \
-Wstrict-overflow=5 \
-Wstrict-prototypes \
-Wswitch-enum \
-Wundef \
-Wunused \
-Wvla \
-Wwrite-strings
WARNINGS += $(BASE_WARNINGS)
BASELINE_CFLAGS = -std=c89 $(WARNINGS)
OBJECTS = \
$(builddir)/ast.o \
$(builddir)/main.o \
$(builddir)/parsedecl.o \
$(builddir)/parseexpr.o \
$(builddir)/parsestmt.o \
$(builddir)/out.o \
$(builddir)/outcommon.o \
$(builddir)/outdecl.o \
$(builddir)/outexpr.o \
$(builddir)/outstmt.o \
$(builddir)/tree.o \
$(builddir)/token.o \
$(builddir)/util.o
C_SOURCES = \
$(srcdir)/ast.c \
$(srcdir)/main.c \
$(srcdir)/parsedecl.c \
$(srcdir)/parseexpr.c \
$(srcdir)/parsestmt.c \
$(srcdir)/out.c \
$(srcdir)/outcommon.c \
$(srcdir)/outdecl.c \
$(srcdir)/outexpr.c \
$(srcdir)/outstmt.c \
$(srcdir)/tree.c \
$(srcdir)/token.c \
$(srcdir)/util.c
C_HEADERS = \
$(srcdir)/out.h \
$(srcdir)/compiler.h \
$(srcdir)/token.h
# TODO should use separate compilation for these too
# (but should it use HOST_CC or not? should it be possible to override?)
STAGE2_C_SOURCES = \
$(srcdir)/rtl/fail.c \
$(builddir)/stage2.out.c
STAGE2_INCLUDE = \
-I$(srcdir)/rtlincl
# perhaps it could pass multiple paths here, to include the backend library
# (or, in the future, whatever vendored libraries that the compiler needs)
STAGE1_ARGS = $(builddir)/stage2.out.c $(srcdir)/../compiler
COMPILER_SOURCES = \
$(srcdir)/../compiler/main.slul
all: $(builddir)/stage2
$(OBJECTS): $(srcdir)/compiler.h
parsedecl.o parseexpr.o parsestmt.o token.o: $(srcdir)/token.h
.SUFFIXES: .c .o
.c.o:
$(HOST_CC) $(HOST_CFLAGS) $(BASELINE_CFLAGS) -c $< -o $@
$(builddir)/stage1: $(OBJECTS)
$(HOST_CC) $(HOST_CFLAGS) $(HOST_LDFLAGS) $(OBJECTS) -o $@
$(builddir)/stage1-boundschecked: $(C_SOURCES) $(C_HEADERS)
tcc -b -bt24 $(C_SOURCES) -o $@
$(builddir)/stage2.out.c: $(builddir)/stage1 $(COMPILER_SOURCES)
$(builddir)/stage1 $(STAGE1_ARGS)
$(builddir)/stage2: $(STAGE2_C_SOURCES)
$(CC) $(CFLAGS) $(LDFLAGS) $(CC_FLAGS) \
$(STAGE2_INCLUDE) \
$(STAGE2_C_SOURCES) \
-o $(builddir)/stage2
.PHONY: all check check-all check-valgrind check-boundschecked clean outdirs
check: $(builddir)/stage1
$(builddir)/stage1 $(STAGE1_ARGS)
check-all: check check-valgrind check-boundschecked clang-analyze
check-valgrind: $(builddir)/stage1
valgrind --leak-check=yes -q $(builddir)/stage1 $(STAGE1_ARGS)
check-boundschecked: $(builddir)/stage1-boundschecked
TCC_BOUNDS_WARN_POINTER_ADD=1 $(builddir)/stage1-boundschecked $(STAGE1_ARGS)
clang-analyze:
clang --analyze $(C_SOURCES)
# Gives a lot of warnings (possibly false positives) and output gets mixed
# up (unless a single file is processed). So not included in check-all.
gcc-analyzer:
gcc -fanalyzer $(C_SOURCES)
clean:
-$(RM_F) \
$(builddir)/stage1 \
$(builddir)/stage1-boundschecked \
$(builddir)/stage2.out.c \
$(builddir)/stage2 \
$(OBJECTS)
outdirs:
$(MKDIR_P) $(builddir)
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