projgen: Working!
The test-gmod project now builds without any hand-written Makefile, building it by using projgen to generate a makefile then make to build it now works! I'm pretty happy with it, there's a couple things I might want to fix/add, but for now it's functionally ready. Now I can probably focus on building a Containerfile for the build image.
This commit is contained in:
parent
568064068e
commit
92a62322f9
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@ -4,3 +4,9 @@ module_build/
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.cache/
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.vscode/
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# generated products of the GMOD test program
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test-gmod/Makefile
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test-gmod/obj
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test-gmod/*.elf
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test-gmod/*.bin
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57
ideas.md
57
ideas.md
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@ -11,7 +11,7 @@ This is basically the working ideas for the LCPU project.
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## Code upload
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- Upload a raw binary to execute, generated from any user tooling (goes into server `data/lcpu/users/[steamid]/`)
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- Upload a raw binary to execute, generated from any user tooling (goes into the server `data/lcpu/users/[steamid]/`)
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- Yes, this means you can run Linux in GMod. No, I'm not sorry.
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## Integrated simple project workflow (WIP, not in the addon yet)
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@ -23,56 +23,47 @@ This is basically the working ideas for the LCPU project.
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- At the root of a project, a `project.json` file is expected to exist, with contents like:
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```json
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{
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"Project": {
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"Name": "test",
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"Name": "test",
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// Define all build configurations here
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"Configurations": {
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"Debug": {
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"CCompileFlags": "-O0 ${BaseCCompileFlags}",
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"CppCompileFlags": "-O0 ${BaseCppCompileFlags}"
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},
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"Release": {
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"CCompileFlags": "-O2 ${BaseCCompileFlags}",
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"CppCompileFlags": "-O2 ${BaseCppCompileFlags}",
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// If a variable is unset it will usually default to
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// ${Base${VariableName}}
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"LinkerFlags": "-Wl,--gc-sections ${BaseLinkerFlags}"
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}
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"Configurations": {
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"Debug": {
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"CCompileFlags": "-O0",
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"CppCompileFlags": "-O0",
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"LinkerFlags": ""
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},
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"Release": {
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"CCompileFlags": "-O2",
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"CppCompileFlags": "-O2",
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"LinkerFlags": "-Wl,--gc-sections"
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}
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},
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"Sources": [
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"binary.ld",
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"start.S",
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"main.c"
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]
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}
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"Sources": [
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"binary.ld",
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"start.S",
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"main.c"
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]
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}
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```
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- `BaseCCompileFlags` and `BaseCppCompileFlags` are defaulted to sane values for each language.
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- This will be transpiled into a `Makefile` by the addon.
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- This will be transpiled into a `Makefile` when built.
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- A standalone tool will be provided and used for transpiling `project.json` to a `Makefile` (and maybe even built into the container and transpiled there, to reduce the actions on the host to just the podman run?)
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- which, when a Build is done in GMod; is then run with `make` in a temporary podman container which only has access to the source code folder for the project (and nothing else, besides riscv tools which are in the image).
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- Command line is probably something like `make CONFIG=${config}`
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- the output binary will be stored alongside the source code on the server side, with a name like `${name}-${config}.bin`
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- which, when a Build is requested in GMod; is then run with `make` in a temporary podman container which only has access to the source code folder for the project (and nothing else, besides riscv tools which are in the image).
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- Command line is probably something like `podman run localhost/lcpu-build:latest -v /project:[host project dir] make CONFIG=${config}`
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- the output binary will be stored alongside the source code on the server side, with a name like `${name}_${config}.bin`
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- This file can then be selected for loading (without needing to be uploaded from the client).
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- There is no conditional compilation in the `project.json` system
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- All files in a project are always built by that project.
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- No notion of subprojects/build dependencies
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- This is meant to be simple for easy development in GMod. If you want complex build features you can export the project onto your own computer and use `lcpu_projgen` to generate Makefiles (which you can then maintain)
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- Text editor used to edit project source files
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- Text editor used to edit project source files in GMod
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- Use the Wire editor? (we need wiremod anyways, and the text editor is.. OK I suppose.)
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- Or: https://github.com/Metastruct/gmod-monaco
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- https://github.com/JustMrPhoenix/Noir/tree/master
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- Some example projects?
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- A simple bare metal "Hello World"
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- A simple bare metal "Hello World" using the SDK headers
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- I joke about it, but an RTOS would be really nice and a good stress test of the project system (for usage in "real" projects.)
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## Moderation/administration tools
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@ -1,8 +1,11 @@
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//! These are the hardcoded defaults projgen uses for configuring Makefiles.
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//! Only change these if you know what they do.
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#pragma once
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/// These are the hardcoded defaults
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#define PROJGEN_CC "riscv32-unknown-elf-gcc"
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#define PROJGEN_CXX "riscv32-unknown-elf-g++"
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#define PROJGEN_LD "riscv32-unknown-elf-gcc"
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#define PROJGEN_OBJCOPY "riscv32-unknown-elf-objcopy"
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#define PROJGEN_BASE_C_FLAGS "-ffreestanding -fno-stack-protector -fdata-sections -ffunction-sections -march=rv32ima -mabi=ilp32"
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#define PROJGEN_BASE_CC_FLAGS "-ffreestanding -fno-stack-protector -fdata-sections -ffunction-sections -march=rv32ima -mabi=ilp32"
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#define PROJGEN_BASE_CC_FLAGS "-ffreestanding -fno-rtti -fno-exceptions -fno-stack-protector -fdata-sections -ffunction-sections -march=rv32ima -mabi=ilp32"
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#define PROJGEN_BASE_LD_FLAGS "-nostdlib"
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@ -1,3 +1,7 @@
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#pragma once
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#include <daw/json/daw_json_link.h>
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#include <cstdio>
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#include <filesystem>
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#include <memory>
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@ -7,13 +11,13 @@ namespace fs = std::filesystem;
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namespace projgen::util {
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using unique_file_ptr = std::unique_ptr<std::FILE, decltype(&std::fclose)>;
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using UniqueFilePtr = std::unique_ptr<std::FILE, decltype(&std::fclose)>;
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unique_file_ptr UniqueFopen(std::string_view path, std::string_view mode) {
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return unique_file_ptr(std::fopen(path.data(), mode.data()), &std::fclose);
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inline UniqueFilePtr UniqueFopen(std::string_view path, std::string_view mode) {
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return UniqueFilePtr(std::fopen(path.data(), mode.data()), &std::fclose);
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}
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std::string ReadFileAsString(const fs::path& path) {
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inline std::string ReadFileAsString(const fs::path& path) {
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auto file = UniqueFopen(path.string(), "r");
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std::string data;
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if(file) {
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@ -27,4 +31,10 @@ namespace projgen::util {
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return data;
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}
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template <class T>
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inline T ParseJsonFromFile(const fs::path& path) {
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auto data = projgen::util::ReadFileAsString(path);
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return daw::json::from_json<T>(data);
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}
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} // namespace projgen::util
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@ -0,0 +1,181 @@
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#pragma once
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#include <format>
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#include <lucore/Assert.hpp>
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#include <string>
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#include <unordered_map>
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#include "BaseConfig.hpp"
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#include "FsUtils.hpp"
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#include "Project.hpp"
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namespace projgen::make {
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// base class for makefile rules
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struct MakefileGeneratable {
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virtual ~MakefileGeneratable() = default;
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virtual std::string Generate() = 0;
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};
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struct MakefileGlobalVariables : public MakefileGeneratable {
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std::unordered_map<std::string, std::string> values;
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// initalize for the global collection
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MakefileGlobalVariables(const std::string& projectName, const std::string& objects) {
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values["NAME"] = projectName;
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values["CC"] = PROJGEN_CC;
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values["CXX"] = PROJGEN_CXX;
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values["LD"] = PROJGEN_LD;
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values["OBJCOPY"] = PROJGEN_OBJCOPY;
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values["BASE_CCFLAGS"] = PROJGEN_BASE_C_FLAGS;
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values["BASE_CXXFLAGS"] = PROJGEN_BASE_CC_FLAGS;
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values["BASE_LDFLAGS"] = PROJGEN_BASE_LD_FLAGS;
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values["OBJS"] = objects;
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}
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std::string Generate() override {
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auto str = std::string();
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for(auto& kv : values) {
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str += std::format("{} = {}\n", kv.first, kv.second);
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}
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return str;
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}
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};
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struct MakefileConfiguration : public MakefileGeneratable {
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MakefileConfiguration(const std::unordered_map<std::string, projgen::Project::Configuration>& configs) : configs(configs) {}
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std::string Generate() override {
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auto string = std::string();
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for(auto& config : configs) {
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string += std::format("ifeq ($(CONFIG),{})\n", config.first);
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string += std::format("{}_Valid = yes\n", config.first);
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string += std::format("{}_CCFLAGS = $(BASE_CCFLAGS) {}\n", config.first, config.second.cCompileFlags);
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string += std::format("{}_CXXFLAGS = $(BASE_CXXFLAGS) {}\n", config.first, config.second.cppCompileFlags);
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string += std::format("{}_LDFLAGS = $(BASE_LDFLAGS) {}\n", config.first, config.second.linkerFlags.value_or(""));
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string += std::format("endif\n");
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}
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string += std::format("ifeq ($(CONFIG),)\n$(error Please specify a build configuration)\nendif\n");
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string += std::format("ifneq ($($(CONFIG)_Valid), yes)\n$(error Invalid configuration $(CONFIG))\nendif\n");
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return string;
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}
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private:
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const std::unordered_map<std::string, projgen::Project::Configuration>& configs;
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};
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// a general product rule
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struct MakefileProductRule : public MakefileGeneratable {
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std::string product;
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std::string consumeDeps;
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MakefileProductRule(const std::string& product, const std::string& consumeDeps) : product(product), consumeDeps(consumeDeps) {}
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std::string Generate() override { return std::format("{}: {}\n\t{}", product, consumeDeps, GenerateRuleCommand()); }
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private:
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virtual std::string GenerateRuleCommand() = 0;
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};
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struct MakefileAllRule : MakefileGeneratable {
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std::string product;
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std::string consumeDeps;
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MakefileAllRule() : product("all"), consumeDeps("obj/$(CONFIG)/ $(NAME)_$(CONFIG).bin") {}
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std::string Generate() override { return std::format("{}: {}\n", product, consumeDeps); }
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};
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struct MakefileCleanRule : MakefileProductRule {
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MakefileCleanRule() : MakefileProductRule("clean", "") {}
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private:
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std::string GenerateRuleCommand() override { return "rm -rf $(NAME)_$(CONFIG).elf $(NAME)_$(CONFIG).bin obj/$(CONFIG)"; }
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};
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struct MakefileObjDirRule : MakefileProductRule {
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MakefileObjDirRule() : MakefileProductRule("obj/$(CONFIG)/", "") {}
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private:
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std::string GenerateRuleCommand() override { return "mkdir -p $@"; }
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};
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// a pattern rule
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// e.g "%.o: %.c" or such
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struct MakefilePatternRule : public MakefileGeneratable {
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std::string productExtension;
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std::string consumeExtension;
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MakefilePatternRule(const std::string& productExtension, const std::string& consumeExtension)
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: productExtension(productExtension), consumeExtension(consumeExtension) {}
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std::string Generate() override { return std::format("{}: {}\n\t{}", productExtension, consumeExtension, GenerateRuleCommand()); }
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private:
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virtual std::string GenerateRuleCommand() = 0;
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};
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struct MakefileAsmRule : public MakefilePatternRule {
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MakefileAsmRule() : MakefilePatternRule("obj/$(CONFIG)/%.o", "%.S") {}
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private:
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std::string GenerateRuleCommand() override { return "$(CC) -xassembler-with-cpp -c $($(CONFIG)_CCFLAGS) $< -o $@"; }
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};
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struct MakefileCRule : public MakefilePatternRule {
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MakefileCRule() : MakefilePatternRule("obj/$(CONFIG)/%.o", "%.c") {}
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private:
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std::string GenerateRuleCommand() override { return "$(CC) -c $($(CONFIG)_CCFLAGS) $< -o $@"; }
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};
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struct MakefileCXXRule : public MakefilePatternRule {
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MakefileCXXRule() : MakefilePatternRule("obj/$(CONFIG)/%.o", "%.cpp") {}
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private:
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std::string GenerateRuleCommand() override { return "$(CXX) -c $($(CONFIG)_CXXFLAGS) $< -o $@"; }
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};
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struct MakefileLinkRule : public MakefileProductRule {
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MakefileLinkRule() : MakefileProductRule("$(NAME)_$(CONFIG).elf", "$(OBJS)") {};
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private:
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std::string GenerateRuleCommand() override { return "$(LD) $($(CONFIG)_LDFLAGS) $(OBJS) -o $@"; }
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};
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struct MakefileFlatBinaryRule : MakefileProductRule {
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MakefileFlatBinaryRule() : MakefileProductRule("$(NAME)_$(CONFIG).bin", "$(NAME)_$(CONFIG).elf") {};
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private:
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std::string GenerateRuleCommand() override { return "$(OBJCOPY) $^ -O binary $@"; }
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};
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struct MakefileWriter {
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MakefileWriter(const fs::path& path) {
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file = projgen::util::UniqueFopen((path / "Makefile").string(), "w");
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LUCORE_CHECK(file, "Could not open {} for writing", (path / "Makefile").string());
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}
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bool Write(const std::vector<std::unique_ptr<MakefileGeneratable>>& g) {
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for(auto& p : g) {
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auto generated_data = p->Generate();
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if(std::fwrite(generated_data.data(), 1, generated_data.length(), file.get()) != generated_data.length())
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return false;
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if(!fputc('\n', file.get()))
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return false;
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}
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return true;
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}
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private:
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projgen::util::UniqueFilePtr file { nullptr, std::fclose };
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};
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} // namespace projgen::make
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@ -1,10 +1,12 @@
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#include <daw/json/daw_json_link.h>
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#pragma once
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#include <optional>
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#include <string>
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#include <unordered_map>
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#include <vector>
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#include "FsUtils.hpp"
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namespace projgen {
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struct Project {
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struct Configuration {
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@ -20,6 +22,52 @@ namespace projgen {
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std::vector<std::string> sourceFileNames;
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};
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// this describes a source file
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struct SourceFile {
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enum class Type {
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Invalid, // invalid file
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AsmSourceFile, // Assembly source file
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CSourceFile, // C source code
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CppSourceFile, // C++ source code
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LinkerScript, // prepended to linker flags with a -T (only one can exist in a project)
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};
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static constexpr Type TypeFromExtension(std::string_view extension) {
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if(extension == ".S")
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return Type::AsmSourceFile;
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else if(extension == ".c")
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return Type::CSourceFile;
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else if(extension == ".cpp")
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return Type::CppSourceFile;
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else if(extension == ".ld")
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return Type::LinkerScript;
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else
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return Type::Invalid;
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}
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explicit SourceFile(const fs::path& path) {
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if(path.has_extension())
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type = TypeFromExtension(path.extension().string());
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else
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type = Type::Invalid;
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this->path = path.filename();
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}
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static std::vector<SourceFile> MakeArray(const fs::path& sourcePath, const std::vector<std::string>& filenames) {
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auto vec = std::vector<SourceFile>();
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vec.reserve(filenames.size());
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for(auto& filename : filenames)
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vec.emplace_back((sourcePath / filename));
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return vec;
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}
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Type type;
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fs::path path;
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};
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} // namespace projgen
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/// DAW JSON Link bindings
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@ -36,10 +84,10 @@ namespace daw::json {
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template <>
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struct json_data_contract<projgen::Project> {
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using type =
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json_member_list<json_string<"Name">,
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json_key_value<"Configurations", std::unordered_map<std::string, projgen::Project::Configuration>, projgen::Project::Configuration>,
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json_array<"Sources", std::string> >;
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using type = json_member_list<
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json_string<"Name">,
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json_key_value<"Configurations", std::unordered_map<std::string, projgen::Project::Configuration>, projgen::Project::Configuration>,
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json_array<"Sources", std::string> >;
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static inline auto to_json_data(const projgen::Project& value) {
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return std::forward_as_tuple(value.name, value.configurations, value.sourceFileNames);
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|
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@ -1,89 +1,87 @@
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//! Main for the LCPU project generator
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#include <filesystem>
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#include <lucore/Assert.hpp>
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#include <lucore/Logger.hpp>
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#include <lucore/StdoutSink.hpp>
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#include <unordered_map>
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#include "BaseConfig.hpp"
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#include "FsUtils.hpp"
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#include "Makefile.hpp"
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#include "Project.hpp"
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template <class T>
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T ParseJsonFromFile(const fs::path& path) {
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auto data = projgen::util::ReadFileAsString(path);
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return daw::json::from_json<T>(data);
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// TODO:
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// Once there's better C++23 ranges support, this can/should be replaced with:
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// (objects | views::join_with(' ')
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// | std::ranges::to<std::string>())
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// I want better ranges support in gcc and clang, this already works in MSVC :(
|
||||
inline auto join(const std::vector<std::string>& values, const std::string_view seperator = " ") {
|
||||
auto string = std::string {};
|
||||
for(auto& value : values)
|
||||
string += std::format("{}{}", value, seperator);
|
||||
return string;
|
||||
}
|
||||
|
||||
// this describes a source file
|
||||
struct SourceFile {
|
||||
enum class Type {
|
||||
Invalid, // invalid file
|
||||
AsmSourceFile, // Assembly source file
|
||||
CSourceFile, // C source code
|
||||
CppSourceFile, // C++ source code
|
||||
LinkerScript, // prepended to linker flags with a -T (only one can exist in a project)
|
||||
};
|
||||
|
||||
static constexpr Type TypeFromExtension(std::string_view extension) {
|
||||
if(extension == "s" || extension == "S")
|
||||
return Type::AsmSourceFile;
|
||||
|
||||
if(extension == "c")
|
||||
return Type::CSourceFile;
|
||||
if(extension == "cpp" || extension == "cc")
|
||||
return Type::CppSourceFile;
|
||||
if(extension == "ld")
|
||||
return Type::LinkerScript;
|
||||
|
||||
return Type::Invalid;
|
||||
}
|
||||
|
||||
explicit SourceFile(const std::string& filename) : filename(filename) {
|
||||
if(auto pos = filename.rfind('.'); pos != std::string::npos) {
|
||||
type = TypeFromExtension(filename.substr(pos + 1));
|
||||
} else {
|
||||
type = Type::Invalid;
|
||||
}
|
||||
}
|
||||
|
||||
static std::vector<SourceFile> MakeArray(const std::vector<std::string>& filenames) {
|
||||
auto vec = std::vector<SourceFile>();
|
||||
vec.reserve(filenames.size());
|
||||
|
||||
for(auto& filename : filenames)
|
||||
vec.emplace_back(filename);
|
||||
|
||||
return vec;
|
||||
}
|
||||
|
||||
Type type;
|
||||
std::string filename;
|
||||
};
|
||||
|
||||
int main(int argc, char** argv) {
|
||||
lucore::LoggerAttachStdout();
|
||||
|
||||
lucore::LogInfo("LCPU project generator!");
|
||||
lucore::LogInfo("LCPU project generator");
|
||||
|
||||
auto project_json_path = (fs::current_path() / "project.json");
|
||||
|
||||
if(!fs::exists(project_json_path)) {
|
||||
lucore::LogFatal("The directory \"{}\" does not seem like it's a project to me", fs::current_path().string());
|
||||
lucore::LogFatal("The directory \"{}\" does not seem like it's a LCPU project to me", fs::current_path().string());
|
||||
return 1;
|
||||
}
|
||||
|
||||
try {
|
||||
auto project = ParseJsonFromFile<projgen::Project>(project_json_path);
|
||||
auto project = projgen::util::ParseJsonFromFile<projgen::Project>(project_json_path);
|
||||
|
||||
for(auto& pair : project.configurations) {
|
||||
std::printf("%s: %s %s %s\n", pair.first.c_str(), pair.second.cCompileFlags.c_str(), pair.second.cppCompileFlags.c_str(),
|
||||
pair.second.linkerFlags.value_or(PROJGEN_BASE_LD_FLAGS).c_str());
|
||||
}
|
||||
lucore::LogInfo("Generating Makefile for project \"{}\".", project.name);
|
||||
|
||||
auto sourceFiles = SourceFile::MakeArray(project.sourceFileNames);
|
||||
auto sourceFiles = projgen::SourceFile::MakeArray(fs::current_path(), project.sourceFileNames);
|
||||
auto objects = std::vector<std::string> {};
|
||||
bool foundLdScript = false;
|
||||
|
||||
for(auto& source : sourceFiles) {
|
||||
std::printf("%s -> %d\n", source.filename.c_str(), source.type);
|
||||
LUCORE_CHECK(source.type != projgen::SourceFile::Type::Invalid,
|
||||
"Source file {} with Invalid type in source files. Refusing to generate project", source.path.string());
|
||||
|
||||
if(source.type == projgen::SourceFile::Type::LinkerScript) {
|
||||
LUCORE_CHECK(!foundLdScript, "Project invalid; has more than 1 .ld script file");
|
||||
foundLdScript = true;
|
||||
for(auto& kv : project.configurations) {
|
||||
if(kv.second.linkerFlags.has_value()) {
|
||||
kv.second.linkerFlags = std::format("-T {} {}", source.path.string(), *kv.second.linkerFlags);
|
||||
} else {
|
||||
kv.second.linkerFlags = std::format("-T {}", source.path.string());
|
||||
}
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
objects.push_back(std::format("obj/$(CONFIG)/{}", source.path.replace_extension(".o").string()));
|
||||
}
|
||||
|
||||
projgen::make::MakefileWriter writer(fs::current_path());
|
||||
|
||||
auto generators = std::vector<std::unique_ptr<projgen::make::MakefileGeneratable>> {};
|
||||
generators.emplace_back(new projgen::make::MakefileGlobalVariables(project.name, join(objects)));
|
||||
generators.emplace_back(new projgen::make::MakefileConfiguration(project.configurations));
|
||||
generators.emplace_back(new projgen::make::MakefileAllRule());
|
||||
generators.emplace_back(new projgen::make::MakefileCleanRule());
|
||||
generators.emplace_back(new projgen::make::MakefileObjDirRule());
|
||||
generators.emplace_back(new projgen::make::MakefileAsmRule());
|
||||
generators.emplace_back(new projgen::make::MakefileCRule());
|
||||
generators.emplace_back(new projgen::make::MakefileCXXRule());
|
||||
generators.emplace_back(new projgen::make::MakefileFlatBinaryRule());
|
||||
generators.emplace_back(new projgen::make::MakefileLinkRule());
|
||||
|
||||
if(!writer.Write(generators)) {
|
||||
lucore::LogError("Could not generate project");
|
||||
return 1;
|
||||
} else {
|
||||
lucore::LogInfo("Generated Makefile \"{}\".", (fs::current_path() / "Makefile").string());
|
||||
}
|
||||
|
||||
} catch(daw::json::json_exception& ex) {
|
||||
|
|
|
|||
|
|
@ -1,53 +0,0 @@
|
|||
PROJECT = test
|
||||
|
||||
# where your rv32 toolchain is
|
||||
TCPATH = /home/lily/bin/riscv/bin
|
||||
PREFIX = $(TCPATH)/riscv32-unknown-elf
|
||||
|
||||
CC = $(PREFIX)-gcc
|
||||
CXX = $(PREFIX)-g++
|
||||
|
||||
ARCHFLAGS = -ffreestanding -fno-stack-protector -fdata-sections -ffunction-sections -march=rv32ima -mabi=ilp32
|
||||
CCFLAGS = -g -Os $(ARCHFLAGS) -std=c18
|
||||
CXXFLAGS = $(ARCHFLAGS) -g -Os -std=c++20 -fno-exceptions -fno-rtti
|
||||
LDFLAGS = -T binary.ld -nostdlib -Wl,--gc-sections
|
||||
|
||||
OBJS = start.o \
|
||||
main.o
|
||||
|
||||
.PHONY: all test clean
|
||||
|
||||
all: $(PROJECT).bin $(PROJECT).debug.txt
|
||||
|
||||
# this assumes the lcpu project build dir you're using is
|
||||
# [lcpu repo root]/build
|
||||
test: $(PROJECT).bin $(PROJECT).debug.txt
|
||||
../../../../build/projects/riscv_test_harness/rvtest $<
|
||||
|
||||
clean:
|
||||
rm $(PROJECT).elf $(PROJECT).bin $(PROJECT).debug.txt $(OBJS)
|
||||
|
||||
# Link rules
|
||||
|
||||
$(PROJECT).elf: $(OBJS)
|
||||
$(CC) $(CCFLAGS) $(LDFLAGS) -o $@ $(OBJS)
|
||||
|
||||
$(PROJECT).bin : $(PROJECT).elf
|
||||
$(PREFIX)-objcopy $^ -O binary $@
|
||||
|
||||
$(PROJECT).debug.txt : $(PROJECT).elf
|
||||
$(PREFIX)-objdump -t $^ > $@
|
||||
$(PREFIX)-objdump -S $^ >> $@
|
||||
|
||||
# Compile rules
|
||||
|
||||
%.o: %.cpp
|
||||
$(CXX) -c $(CXXFLAGS) $< -o $@
|
||||
|
||||
%.o: %.c
|
||||
$(CC) -c $(CCFLAGS) $< -o $@
|
||||
|
||||
%.o: %.S
|
||||
$(CC) -x assembler-with-cpp -march=rv32ima -mabi=ilp32 -c $< -o $@
|
||||
|
||||
|
||||
Loading…
Reference in New Issue