Port Premake to Cosmopolitan Libc

.github/workflows/ci-workflow.yml

@@ -109,6 +109,29 @@ jobs:
       with:
         name: premake-${{ matrix.msystem }}-${{ matrix.platform }}
         path: bin\${{ matrix.config }}\
+  cosmopolitan:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        config: [debug, release]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+    - uses: tritao/setup-cosmopolitan@v1.3
+      with:
+        version: '3.9.2'
+    - name: Build
+      run: make -f Bootstrap.mak cosmo CONFIG=${{ matrix.config }}
+    - name: Test
+      run: bin/${{ matrix.config }}/premake5 test --test-all
+    - name: Docs check
+      run: bin/${{ matrix.config }}/premake5 docs-check
+    - name: Upload Artifacts
+      if: matrix.config == 'release'
+      uses: actions/upload-artifact@v4
+      with:
+        name: premake-cosmopolitan-universal
+        path: bin/${{ matrix.config }}/premake5
 
   # This job will be required for PRs to be merged.
   # This should depend on (via needs) all jobs that need to be successful for the PR to be merged.

Bootstrap.mak

@@ -151,3 +151,12 @@ windows: windows-base
 
 windows-msbuild: windows-base
 	msbuild /p:Configuration=$(CONFIG) /p:Platform=$(PLATFORM:x86=win32) .\build\bootstrap\Premake5.sln
+
+cosmo-clean: nix-clean
+
+cosmo: cosmo-clean
+	mkdir -p build/bootstrap
+	cosmocc -o build/bootstrap/premake_bootstrap -DPREMAKE_NO_BUILTIN_SCRIPTS -DLUA_USE_POSIX -DLUA_USE_DLOPEN -I"$(LUA_DIR)" -I"$(LUASHIM_DIR)" $(SRC) -lm -ldl -lrt
+	./build/bootstrap/premake_bootstrap embed
+	./build/bootstrap/premake_bootstrap --to=build/bootstrap --cc=cosmocc gmake2
+	$(MAKE) -C build/bootstrap -j`getconf _NPROCESSORS_ONLN` config=$(CONFIG)

contrib/curl/lib/curl_setup.h

@@ -166,6 +166,10 @@
 #  include "config-linux.h"
 #endif
 
+#ifdef __COSMOPOLITAN__
+#  include "config-linux.h"
+#endif
+
 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
 #  include "config-linux.h"
 #endif

contrib/libzip/premake5.lua

@@ -11,7 +11,7 @@ project "zip-lib"
 		"**.c"
 	}
 
-	filter "system:linux or bsd or solaris or haiku"
+	filter "toolset:gcc or clang or cosmocc"
 		defines { "HAVE_SSIZE_T_LIBZIP", "HAVE_CONFIG_H" }
 		forceincludes { "unistd.h" }
 

modules/gmake/_preload.lua

@@ -20,7 +20,7 @@
 		valid_kinds     = { "ConsoleApp", "WindowedApp", "StaticLib", "SharedLib", "Utility", "Makefile", "None" },
 		valid_languages = { "C", "C++", "C#" },
 		valid_tools     = {
-			cc     = { "clang", "gcc" },
+			cc     = { "clang", "gcc", "cosmocc" },
 			dotnet = { "mono", "msnet", "pnet" }
 		},
 

modules/gmake2/_preload.lua

@@ -22,7 +22,7 @@
 		valid_languages = { "C", "C++", "C#" },
 
 		valid_tools     = {
-			cc     = { "clang", "gcc" },
+			cc     = { "clang", "gcc", "cosmocc" },
 			dotnet = { "mono", "msnet", "pnet" }
 		},
 

premake5.lua

@@ -256,7 +256,7 @@
 			defines     { "LUA_USE_MACOSX" }
 			links       { "CoreServices.framework", "Foundation.framework", "Security.framework", "readline" }
 
-		filter "system:linux"
+		filter { "system:linux", "toolset:not cosmocc" }
 			links		{ "uuid" }
 
 		filter { "system:macosx", "action:gmake" }
@@ -289,13 +289,14 @@
 			include "contrib/curl"
 		end
 
-	group "Binary Modules"
-		include "binmodules/example"
-
-		if not _OPTIONS["no-luasocket"] then
-			include "binmodules/luasocket"
-		end
+	if _OPTIONS["cc"] ~= "cosmocc" then
+		group "Binary Modules"
+			include "binmodules/example"
 
+			if not _OPTIONS["no-luasocket"] then
+				include "binmodules/luasocket"
+			end
+	end
 --
 -- A more thorough cleanup.
 --

src/_manifest.lua

@@ -64,6 +64,7 @@
 		"tools/snc.lua",
 		"tools/clang.lua",
 		"tools/mingw.lua",
+		"tools/cosmocc.lua",
 
 		-- Clean action
 		"actions/clean/_clean.lua",

src/host/os_getnumcpus.c

@@ -10,7 +10,7 @@
 
 #include "premake.h"
 
-#if PLATFORM_LINUX
+#if PLATFORM_LINUX | PLATFORM_COSMO
 #include <sched.h>
 #elif PLATFORM_SOLARIS | PLATFORM_AIX | PLATFORM_MACOSX | PLATFORM_BSD
 #include <sys/sysctl.h>
@@ -25,7 +25,7 @@ int do_getnumcpus()
 	SYSTEM_INFO sysinfo;
 	GetSystemInfo(&sysinfo);
 	return sysinfo.dwNumberOfProcessors;
-#elif PLATFORM_LINUX
+#elif PLATFORM_LINUX | PLATFORM_COSMO
 	cpu_set_t set;
 	int count, i;
 

src/host/os_getpass.c

@@ -31,8 +31,13 @@ int os_getpass(lua_State* L)
 
 		lua_pushstring(L, buffer);
 		return 1;
-	#else
+	#elif PLATFORM_COSMO
+		luaL_error(L, "Not supported by this platform");
+		return 0;
+	#elif PLATFORM_POSIX
 		lua_pushstring(L, getpass(prompt));
 		return 1;
+	#else
+		#error Not implemented yet for this platform
 	#endif
 }

src/host/os_getversion.c

@@ -272,7 +272,7 @@ int getversion(struct OsVersionInfo* info)
 
 /*************************************************************/
 
-#elif defined(PLATFORM_BSD) || defined(PLATFORM_LINUX) || defined(PLATFORM_SOLARIS) || defined(PLATFORM_HURD) || defined(PLATFORM_HAIKU)
+#elif defined(PLATFORM_BSD) || defined(PLATFORM_LINUX) || defined(PLATFORM_SOLARIS) || defined(PLATFORM_HURD) || defined(PLATFORM_HAIKU) || defined(PLATFORM_COSMO)
 
 #include <string.h>
 #include <sys/utsname.h>

src/host/premake.c

@@ -4,6 +4,7 @@
  * \author Copyright (c) 2002-2017 Jason Perkins and the Premake project
  */
 
+#include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
@@ -19,6 +20,10 @@
 #include <sys/sysctl.h>
 #endif
 
+#if PLATFORM_COSMO
+#include <cosmo.h>
+#endif
+
 #define ERROR_MESSAGE  "Error: %s\n"
 
 
@@ -172,6 +177,24 @@ void luaL_register(lua_State *L, const char *libname, const luaL_Reg *l)
 }
 
 
+static const char* premake_host_os()
+{
+#if PLATFORM_COSMO
+	if (IsLinux()) { return "linux"; }
+	else if (IsWindows()) { return "windows"; }
+	else if (IsXnu()) { return "macosx"; }
+	else if (IsBsd()) { return "bsd"; }
+	else
+	{
+		assert(0 && "Platform is unknown to Cosmopolitan Libc");
+		return 0;
+	}
+#else
+	return PLATFORM_OS;
+#endif
+}
+
+
 /**
  * Initialize the Premake Lua environment.
  */
@@ -213,13 +236,19 @@ int premake_init(lua_State* L)
 	lua_setglobal(L, "_PREMAKE_URL");
 
 	/* set the target OS platform variable */
-	lua_pushstring(L, PLATFORM_OS);
+	lua_pushstring(L, premake_host_os());
 	lua_setglobal(L, "_TARGET_OS");
 
 	/* set the target arch platform variable */
 	lua_pushnil(L);
 	lua_setglobal(L, "_TARGET_ARCH");
 
+#if PLATFORM_COSMO
+	/* set _COSMOPOLITAN if its a Cosmopolitan build */
+	lua_pushboolean(L, TRUE);
+	lua_setglobal(L, "_COSMOPOLITAN");
+#endif
+
 	/* find the user's home directory */
 	value = getenv("HOME");
 	if (!value) value = getenv("USERPROFILE");

src/host/premake.h

@@ -38,12 +38,15 @@
 #elif defined (__GNU__)
 #define PLATFORM_HURD  (1)
 #define PLATFORM_OS  "hurd"
+#elif defined (__COSMOPOLITAN__)
+#define PLATFORM_COSMO  (1)
+#define PLATFORM_OS  "cosmopolitan"
 #else
 #define PLATFORM_WINDOWS  (1)
 #define PLATFORM_OS   "windows"
 #endif
 
-#define PLATFORM_POSIX  (PLATFORM_LINUX || PLATFORM_BSD || PLATFORM_MACOSX || PLATFORM_SOLARIS || PLATFORM_HAIKU)
+#define PLATFORM_POSIX  (PLATFORM_LINUX || PLATFORM_BSD || PLATFORM_MACOSX || PLATFORM_SOLARIS || PLATFORM_HAIKU || PLATFORM_COSMO)
 
 #if defined(__x86_64__) || defined(__x86_64) || defined(__amd64__) || defined(__amd64) || \
     defined(_M_X64) || defined(_M_AMD64)

src/tools/cosmocc.lua

@@ -0,0 +1,27 @@
+--
+-- cosmocc.lua
+-- Cosmopolitan Libc toolset adapter for Premake
+-- Copyright (c) 2024 Premake project
+--
+
+local p = premake
+local gcc = p.tools.gcc
+
+p.tools.cosmocc = table.deepcopy(gcc, {})
+local cosmocc = p.tools.cosmocc
+
+function cosmocc.getsharedlibarg(cfg)
+    return ""
+end
+
+cosmocc.ldflags.kind.SharedLib = cosmocc.getsharedlibarg
+
+cosmocc.tools = {
+    cc = "cosmocc",
+    cxx = "cosmoc++",
+    ar = "cosmoar",
+}
+
+function cosmocc.gettoolname(cfg, tool)
+    return cosmocc.tools[tool]
+end

tests/base/test_binmodules.lua

@@ -7,6 +7,7 @@
 	local suite = test.declare("premake_binmodules")
 	local p = premake
 
+	if not _COSMOPOLITAN then
 
 	function suite.setup()
 		require("example")
@@ -17,3 +18,5 @@
 		local result = example.test("world")
 		test.isequal("hello world", result)
 	end
+
+	end