diff options
Diffstat (limited to 'premake5.lua')
| -rw-r--r-- | premake5.lua | 195 |
1 files changed, 193 insertions, 2 deletions
diff --git a/premake5.lua b/premake5.lua index eff7f87..ffda3a8 100644 --- a/premake5.lua +++ b/premake5.lua @@ -1,12 +1,114 @@ output_dir = "%{cfg.buildcfg}-%{cfg.system}" +llvm_version = "22.1.0" +llvm_vendored_dir = "ext/llvm" + +function llvm_release_asset() + local host = os.host() + local arm = os.hostarch() == "ARM64" or os.hostarch() == "arm64" + + if host == "macosx" then + return "LLVM-" .. llvm_version .. "-macOS-ARM64.tar.xz" + elseif host == "linux" then + return "LLVM-" .. llvm_version .. (arm and "-Linux-ARM64" or "-Linux-X64") .. ".tar.xz" + elseif host == "windows" then + return "clang+llvm-" .. llvm_version .. + (arm and "-aarch64-pc-windows-msvc" or "-x86_64-pc-windows-msvc") .. ".tar.xz" + end + + return nil +end + +function llvm_prefix() + local function usable(candidate) + if candidate == nil or candidate == "" then + return nil + end + + local prefix = path.getabsolute( + (candidate:gsub("%s+$", "")):gsub("\\", "/"), _MAIN_SCRIPT_DIR) + + return os.isdir(prefix .. "/include/lldb") and prefix or nil + end + + local function newest_of(pattern) + local matches = os.matchdirs(pattern) + table.sort(matches) + + for index = #matches, 1, -1 do + local prefix = usable(matches[index]) + + if prefix ~= nil then + return prefix + end + end + + return nil + end + + local prefix = usable(os.getenv("LLVM_PREFIX")) + or usable(llvm_vendored_dir) + or usable(os.outputof("llvm-config --prefix")) + + if prefix == nil and os.host() == "windows" then + prefix = usable(os.getenv("ProgramFiles") and os.getenv("ProgramFiles") .. "/LLVM") + or newest_of("C:/Program Files/LLVM*") + end + + if prefix == nil and os.host() == "macosx" then + prefix = usable(os.outputof("brew --prefix llvm")) + end + + if prefix == nil and os.host() == "linux" then + prefix = newest_of("/usr/lib/llvm-*") or newest_of("/usr/local/llvm*") + end + + return prefix +end + +llvm_dir = llvm_prefix() + +if llvm_dir == nil and _ACTION ~= nil and _ACTION ~= "fetch-llvm" and _ACTION ~= "clean" then + error("no llvm with lldb headers found. install one and set LLVM_PREFIX, " .. + "or run `premake5 fetch-llvm` to download the pinned " .. llvm_version .. " release") +end + +llvm_dir = llvm_dir or "" + include_dir = { glfw = "ext/glfw/include", glad = "ext/glad/include", imgui = "ext/imgui", imgui_backends = "ext/imgui/backends", + lldb = llvm_dir .. "/include", } +library_dir = { + lldb = llvm_dir .. "/lib", +} + +function lldb_library() + if llvm_dir == "" then + return "" + end + + local names = { "liblldb.dylib", "liblldb.so", "liblldb.lib" } + + for _, name in ipairs(names) do + local candidate = library_dir.lldb .. "/" .. name + + if os.isfile(candidate) then + return candidate + end + end + + local versioned = os.matchfiles(library_dir.lldb .. "/liblldb.so.*") + table.sort(versioned) + + return versioned[#versioned] + or error("llvm at " .. llvm_dir .. " has lldb headers but no liblldb in " .. library_dir.lldb) +end + function setup_target() targetdir ("bin/" .. output_dir) objdir ("bin-int/" .. output_dir .. "/%{prj.name}") @@ -40,16 +142,93 @@ newaction { execute = function() os.rmdir("bin") os.rmdir("bin-int") + os.rmdir(".vs") os.remove("Makefile") - for _, file in ipairs(os.matchfiles("*.make")) do - os.remove(file) + local patterns = { "*.make", "*.sln", "*.vcxproj", "*.vcxproj.*" } + + for _, pattern in ipairs(patterns) do + for _, file in ipairs(os.matchfiles(pattern)) do + os.remove(file) + end end print("Cleaned build output and generated project files") end } +newaction { + trigger = "fetch-llvm", + description = "Download the pinned llvm release into " .. llvm_vendored_dir, + + execute = function() + if os.isdir(llvm_vendored_dir .. "/include/lldb") then + print(llvm_vendored_dir .. " already has an llvm with lldb headers") + return + end + + local asset = llvm_release_asset() + + if asset == nil then + error("no pinned llvm release for " .. os.host() .. " " .. os.hostarch() .. + ", install llvm yourself and set LLVM_PREFIX") + end + + local archive = "ext/" .. asset + local staging = "ext/llvm-staging" + + if not os.isfile(archive) then + local url = "https://github.com/llvm/llvm-project/releases/download/llvmorg-" .. + llvm_version .. "/" .. asset + + print("downloading " .. url) + + local reported = 0 + local result, code = http.download(url, archive, { + progress = function(total, current) + if total > 0 and current - reported >= total / 20 then + reported = current + printf(" %d%% (%.0f mb)", math.floor(current / total * 100), current / 1048576) + end + end + }) + + if result ~= "OK" then + os.remove(archive) + error("download failed with " .. tostring(code) .. ": " .. tostring(result)) + end + end + + os.rmdir(staging) + os.mkdir(staging) + + print("extracting " .. asset) + + local extracted = os.execute('tar -xf "' .. archive .. '" -C "' .. staging .. '"') + + if extracted ~= true and extracted ~= 0 then + error("could not extract " .. archive .. ", unpack it into " .. llvm_vendored_dir .. " by hand") + end + + local unpacked = os.matchdirs(staging .. "/*")[1] + + if unpacked == nil then + error(archive .. " did not contain an llvm directory") + end + + os.rmdir(llvm_vendored_dir) + + if not os.rename(unpacked, llvm_vendored_dir) then + error("could not move " .. unpacked .. " to " .. llvm_vendored_dir) + end + + os.rmdir(staging) + os.remove(archive) + + print("llvm " .. llvm_version .. " is ready in " .. llvm_vendored_dir) + end +} + workspace "hsdbg" architecture "x64" @@ -265,6 +444,7 @@ project "hsdbg" "%{include_dir.glad}", "%{include_dir.imgui}", "%{include_dir.imgui_backends}", + "%{include_dir.lldb}", } links { @@ -273,9 +453,20 @@ project "hsdbg" "imgui", } + defines { "HSDBG_LLVM_PREFIX=\"" .. llvm_dir .. "\"" } + + linkoptions { lldb_library() } + filter "system:windows" systemversion "latest" + links "opengl32" + + postbuildcommands { + '{COPYFILE} "' .. llvm_dir .. '/bin/liblldb.dll" "%{cfg.targetdir}"', + } + filter "system:not windows" + linkoptions { "-Wl,-rpath," .. library_dir.lldb } filter "system:linux" links { "GL", |