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# Makefile for the bootstrap compiler.
#
# Copyright © 2021-2025 Samuel Lidén Borell <samuel@kodafritt.se>
#
# SPDX-License-Identifier: EUPL-1.2+ OR LGPL-2.1-or-later
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
BASE_CFLAGS = -std=c89 $(WARNINGS) $(BASE_WARNINGS)
CLANG_ANALYZE_OPTS = --analyzer-output text
OBJECTS = \
$(builddir)/ast.o \
$(builddir)/builtins.o \
$(builddir)/funccall.o \
$(builddir)/intrange.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)/typechk.o \
$(builddir)/typecompat.o \
$(builddir)/util.o
C_SOURCES = \
$(srcdir)/ast.c \
$(srcdir)/builtins.c \
$(srcdir)/funccall.c \
$(srcdir)/intrange.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)/typechk.c \
$(srcdir)/typecompat.c \
$(srcdir)/util.c
C_HEADERS = \
$(srcdir)/out.h \
$(srcdir)/compiler.h \
$(srcdir)/token.h
RTL_OBJECTS = \
$(builddir)/rtl/cli.o \
$(builddir)/rtl/fail.o \
$(builddir)/rtl/message.o \
$(builddir)/rtl/string.o \
$(builddir)/rtl/writer.o
RTL_C_SOURCES = \
$(srcdir)/rtl/cli.c \
$(srcdir)/rtl/fail.c \
$(srcdir)/rtl/message.c \
$(srcdir)/rtl/string.c \
$(srcdir)/rtl/writer.c
RTL_C_HEADERS = \
$(srcdir)/rtlincl/rtl.h \
$(srcdir)/rtl/internal.h
STAGE2_OBJECTS = \
$(RTL_OBJECTS) \
$(builddir)/stage2_gen.o
STAGE2_C_SOURCE = \
$(builddir)/stage2_gen.c
STAGE2_INCLUDE = \
-I$(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_gen.c $(srcdir)/../compiler
COMPILER_SOURCES = \
$(srcdir)/../compiler/misc.slul \
$(srcdir)/../compiler/SomeClass.slul \
$(srcdir)/../compiler/TheCommand.slul
all: $(builddir)/stage2
$(OBJECTS): $(srcdir)/compiler.h
out.o outcommon.o outdecl.o outexpr.o outstmt.o: $(srcdir)/out.h
ast.o funccall.o out.o parsedecl.o parseexpr.o parsestmt.o \
token.o typechk.o: $(srcdir)/token.h
$(RTL_OBJECTS): $(RTL_C_HEADERS)
.SUFFIXES: .c .o
# Note: the stage2 includes (rtlincl/ and rtl/) may only be used in actual
# stage2 code and in the RTL code, not in any other places!
.c.o:
$(HOST_CC) $(HOST_CFLAGS) $(BASE_CFLAGS) $(STAGE2_INCLUDE) -c -o $@ $<
$(builddir)/stage1: $(OBJECTS)
$(HOST_CC) $(HOST_CFLAGS) $(HOST_LDFLAGS) -o $@ $(OBJECTS)
$(builddir)/stage1-boundschecked: $(C_SOURCES) $(C_HEADERS)
tcc -b -bt24 -o $@ $(C_SOURCES)
$(builddir)/stage2_gen.c: $(builddir)/stage1 $(COMPILER_SOURCES)
$(builddir)/stage1 $(STAGE1_ARGS)
$(builddir)/stage2: $(STAGE2_OBJECTS) $(RTL_C_HEADERS)
$(CC) $(CFLAGS) $(BASE_CFLAGS) $(STAGE2_DISABLED_WARNINGS) \
$(STAGE2_CFLAGS) $(LDFLAGS) \
$(STAGE2_INCLUDE) \
-o $@ \
$(STAGE2_OBJECTS)
.PHONY: all check check-all check-boundschecked check-valgrind \
check-pmccabe clang-analyze clean gcc-analyzer gdb-stage1 \
longlines outdirs
# TODO add a proper test once the stage2 compiler is done
check: $(builddir)/stage2
check-all: check check-valgrind check-boundschecked clang-analyze longlines
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 $(CLANG_ANALYZE_OPTS) $(C_SOURCES)
longlines:
if grep -nE '^.{80,}' $(C_SOURCES) $(C_HEADERS); then \
echo "error: Too long lines detected. Maximum is 80 characters" ;\
false ;\
else \
true ;\
fi
# 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)
check-pmccabe:
pmccabe -c $(C_SOURCES) | sort -nr | head -n 20
gdb-stage1: $(builddir)/stage1
gdb -q --args $(builddir)/stage1 $(STAGE1_ARGS)
clean:
-$(RM_F) \
$(builddir)/stage1 \
$(builddir)/stage1-boundschecked \
$(builddir)/stage2_gen.c \
$(builddir)/stage2 \
$(OBJECTS) \
$(STAGE2_OBJECTS)
outdirs:
$(MKDIR_P) $(builddir) $(builddir)/rtl
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