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Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 000000000..138322165 --- /dev/null +++ b/Makefile @@ -0,0 +1,116 @@ +# Makefile +# +# This file provides a simpliistic (perhaps *overly* simplistic) way to +# build Slang from source on Linux, which could probably be adapted for +# building on other Unix-y targets. +# +# This build is not intended to be used for active development right now, +# so it doesn't actually try to compile the `.cpp` files separately, +# or track fine-grained dependencies, so almost any source change will +# trigger a full rebuild. Anybody who wants to do their active development +# on a platform supported by this Makefile should feel free to contribute +# improvements, with the caveat that we will not be adoptttting autoconf, +# CMake, or any other build system that has a tendency to "infect" a codebbbase. +# + +# +# The Windows build (using Visual Studio) tries to output things to +# directories that take the target platform (and build configuration) into +# account. For now we will do something simplistic and request the target +# "triple" from the compiler (which we assume is either gcc or clang) and +# call that our target "platformm" +# +TARGET := $(shell $(CXX) -dumpmachine) + +# +# TODO: We need a way to control the "configuration" (debug vs. release) +# but for now just geting *something* working will be a good start. +# + +# +# We will define an ouput directory for our binaries, based on +# the target platform chosen. If we ever have steps that need to +# output intermediate files, we'd set up the directory here. +# +OUTPUTDIR := bin/$(TARGET)/ +INTERMEDIATEDIR := intermediate/$(TARGET)/ + +# +# Now we will start defining a bunch of variables for build +# options and properties of the target. We are going to unconditionallyy +# set these to what we need/want on our Linux target for now, but +# we will eventually need to do a bit more work to detect the +# platform. +# +SHARED_LIB_PREFIX := lib +SHARED_LIB_SUFFIX := .so +BIN_SUFFIX := +# Note: we set `visibility=hidden` to avoid exporting more symbols than +# we really need. +CFLAGS := -std=c++11 -fvisibility=hidden +LDFLAGS := -L$(OUTPUTDIR) +SHARED_LIB_LDFLAGS := -shared +SHARED_LIB_CFLAGS := -fPIC + +# Make sure that shared library inherits build flags +# from the default case. +SHARED_LIB_LDFLAGS += $(LDFLAGS) +SHARED_LIB_CFLAGS += $(CFLAGS) + +RELATIVE_RPATH_INCANTATION := "-Wl,-rpath,"'$$'"ORIGIN/" + +# TODO: Make sure I'm using these Makefile incantations correctly. +.SUFFIXES: +.PHONY: all clean slang slangc test + +# +# Here we define lists of files (source vs. header dependencies) +# for each logical project we want to build. +# This is the one place where we do any kiind of "dependency" work, +# by making a project depend on the headers for sub-projects it usses. +# +CORE_SOURCES := source/core/*.cpp +CORE_HEADERS := source/core/*.h + +SLANG_SOURCES := source/slang/*.cpp +SLANG_HEADERS := slang.h source/slang/*.h +SLANG_SOURCES += $(CORE_SOURCES) +SLANG_HEADERS += $(CORE_HEADERS) + +SLANGC_SOURCES := source/slangc/*.cpp +SLANGC_HEADERS := $(SLANG_HEADERS) + +# +# Each project will have a variable that is an alias for +# the binary it should produce. +# +SLANG := $(OUTPUTDIR)$(SHARED_LIB_PREFIX)slang$(SHARED_LIB_SUFFIX) +SLANGC := $(OUTPUTDIR)slangc$(BIN_SUFFIX) + +# By default, when the user invokes `make`, we will build the +# `slang` shared library, and the `slangc` front-end application. +all: slang slangc + +mkdirs: $(OUTPUTDIR) + +# Project-specific targets depend on making theappropriate binary. +slang: mkdirs $(SLANG) +slangc: mkdirs $(SLANGC) + + +$(SLANG): $(SLANG_SOURCES) $(SLANG_HEADERS) + $(CXX) $(SHARED_LIB_LDFLAGS) -o $@ -DSLANG_DYNAMIC_EXPORT $(SHARED_LIB_CFLAGS) $(SLANG_SOURCES) + +$(SLANGC): $(SLANGC_SOURCES) $(SLANGC_HEADERS) $(SLANG) + $(CXX) $(LDFLAGS) -o $@ $(CFLAGS) $(SLANGC_SOURCES) $(CORE_SOURCES) -ldl $(RELATIVE_RPATH_INCANTATION) -lslang + + + +$(OUTPUTDIR): + mkdir -p $(OUTPUTDIR) + +test: + # TODO need to actually run the test runner + +clean: + rm -rf $(OUTPUTDIR) |