From 9a2ccd9cf0df2215a456b1e71f129f06f99f8316 Mon Sep 17 00:00:00 2001
From: kotofyt <bratelllo@gmail.com>
Date: Sun, 28 Dec 2025 01:39:26 +0200
Subject: [PATCH] almost done

---
 fpc/Makefile                   |  48 +++++++++++++----
 fpc/build.cpp                  |   7 +--
 fpc/buildfile/interfaces.cpp   |  26 +++++++++
 fpc/buildfile/interfaces.o     | Bin 0 -> 38040 bytes
 fpc/library/builder.cpp        |  96 +++++++++++++++++++++++++++++++++
 fpc/library/clang/ld.cpp       |   2 +-
 fpc/library/helper.cpp         |  17 ------
 fpc/library/ld.cpp             |   5 ++
 fpc/library/windows/ld.cpp     |   2 +-
 fpc/main.cpp                   |  21 ++++----
 fpc/public/builder.h           |  11 +++-
 fpc/public/dependencymanager.h |   0
 fpc/public/helper.h            |  14 ++---
 fpc/public/interfaces.cpp      |  11 ----
 fpc/public/ld.h                |   2 +-
 fpc/public/lsp.h               |  11 ++++
 16 files changed, 211 insertions(+), 62 deletions(-)
 create mode 100644 fpc/buildfile/interfaces.cpp
 create mode 100644 fpc/buildfile/interfaces.o
 create mode 100644 fpc/public/dependencymanager.h
 delete mode 100644 fpc/public/interfaces.cpp
 create mode 100644 fpc/public/lsp.h

diff --git a/fpc/Makefile b/fpc/Makefile
index 97f7ad1..d16cb76 100644
--- a/fpc/Makefile
+++ b/fpc/Makefile
@@ -1,10 +1,13 @@
 # We want to build just enough to use other stuff
-TIER_FILES := ../tier0/lib.cpp ../tier0/mem.cpp ../tier0/platform.cpp ../tier1/utlbuffer.cpp ../tier1/interface.cpp ../tier1/utlstring.cpp ../tier1/utlvector.cpp ../tier1/utlmap.cpp ../tier1/commandline.cpp ../tier2/filesystem.cpp ../tier2/filesystem_libc.cpp ../tier2/fileformats/ini.cpp
-
-FPC_FILES := main.cpp library/runner.cpp library/helper.cpp library/c.cpp library/ld.cpp library/clang/c.cpp library/clang/ld.cpp library/target.cpp
+TIER0_FILES := ../tier0/lib.cpp ../tier0/mem.cpp ../tier0/platform.cpp
+TIER1_FILES := ../tier1/utlbuffer.cpp ../tier1/interface.cpp ../tier1/utlstring.cpp ../tier1/utlvector.cpp ../tier1/utlmap.cpp ../tier1/commandline.cpp
+TIER2_FILES := ../tier2/filesystem.cpp ../tier2/fileformats/ini.cpp
+FILESYSTEM_FILES := ../stdfilesystems/filesystem_libc.cpp
+TIER1_OBJS := $(TIER1_FILES:.cpp=.o)
+TIER2_OBJS := $(TIER2_FILES:.cpp=.o)
+FPC_FILES := library/runner.cpp library/helper.cpp library/c.cpp library/ld.cpp library/clang/c.cpp library/clang/ld.cpp library/target.cpp library/builder.cpp
 CC = clang
-OUTPUT_DIR = fpc 
-CCFLAGS = -I../public -Ipublic -lc -lstdc++
+CCFLAGS = -g -I../public -Ipublic
 
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Darwin)
@@ -14,20 +17,43 @@ ifeq ($(UNAME_S),Linux)
 endif
 
 recompile: ../build/tools
-	./fpc build
+	build/fpc build
 	mv fpc_temp fpc
 
-install: $(FPC_FILES) ../build/tools
-	$(CC) -g $(TIER_FILES) $(FPC_FILES) $(CCFLAGS) -o $(OUTPUT_DIR)
-	./fpc build
+install: ../build/tools libfpcbuild.a libfpc.so libtier0.so libtier1.a libtier2.a libfilesystem_std.so builddir
+	$(CC) main.cpp -lc -lstdc++ $(CCFLAGS) -o build/fpc build/libtier0.so build/libtier1.a build/libtier2.a build/libfpc.so build/libfilesystem_std.so
+	gdb --args build/fpc build
 	mv fpc_temp fpc
 
+libtier0.so: $(TIER0_FILES) builddir
+	$(CC) $(CCFLAGS) -fPIC -shared -o build/libtier0.so $(TIER0_FILES)
+
+%.o: %.cpp
+	$(CC) $(CCFLAGS) -fPIC -c $< -o $@
+
+libtier1.a: $(TIER1_OBJS) builddir
+	ar rcs build/libtier1.a $(TIER1_OBJS)
+
+libtier2.a: $(TIER2_OBJS) builddir
+	ar rcs build/libtier2.a $(TIER2_OBJS)
+
+libfilesystem_std.so: $(FILESYSTEM_FILES) libtier1.a builddir
+	$(CC) $(CCFLAGS) -fPIC -shared -o build/libfilesystem_std.so $(FILESYSTEM_FILES) build/libtier1.a
+
+libfpcbuild.a: buildfile/interfaces.o builddir
+	ar rcs build/libfpcbuild.a buildfile/interfaces.o
+
+libfpc.so: $(FPC_FILES) builddir libfpcbuild.a
+	$(CC) $(CCFLAGS) -fPIC -shared -o build/libfpc.so build/libfpcbuild.a $(FPC_FILES)
+
+builddir:
+	mkdir -p build
 
 ../build/tools:
-	mkdir -p ../build/tools
+	mkdir -p ../build/tools/fpc
 
 install_fpc:
-	cp fpc ../build/tools
+	cp -r build/* ../build/tools/fpc
 	cp -r public ../build/tools
 	cp -r ../public/tier0 ../build/tools/public
 	cp -r ../public/tier1 ../build/tools/public
diff --git a/fpc/build.cpp b/fpc/build.cpp
index 800a090..8f2ce90 100644
--- a/fpc/build.cpp
+++ b/fpc/build.cpp
@@ -5,9 +5,9 @@
 #include "tier1/interface.h"
 #include "signal.h"
 
-ADD_DEPENDENCY_BUILD_FILE("../tier0/__build.cpp")
-ADD_DEPENDENCY_BUILD_FILE("../tier1/__build.cpp")
-ADD_DEPENDENCY_BUILD_FILE("../tier2/__build.cpp")
+ADD_DEPENDENCY_BUILD_FILE(tier0, "../tier0/");
+ADD_DEPENDENCY_BUILD_FILE(tier1, "../tier1/");
+ADD_DEPENDENCY_BUILD_FILE(tier2, "../tier2/");
 
 
 CUtlVector<CUtlString> g_CompiledFiles = {
@@ -16,6 +16,7 @@ CUtlVector<CUtlString> g_CompiledFiles = {
 	"library/runner.cpp",
 	"library/helper.cpp",
 	"library/target.cpp",
+	"library/builder.cpp",
 	
 	"library/winerunner.cpp",
 	
diff --git a/fpc/buildfile/interfaces.cpp b/fpc/buildfile/interfaces.cpp
new file mode 100644
index 0000000..0993e7c
--- /dev/null
+++ b/fpc/buildfile/interfaces.cpp
@@ -0,0 +1,26 @@
+#include "tier1/interface.h"
+#include "helper.h"
+
+static BuildFileInfo_t buildfileinfo = {};
+BuildFileInfo_t *GetBuildFileInfo()
+{
+	return &buildfileinfo;
+}
+
+
+CBuildStage::CBuildStage( const char *psz, int(*pMainFn)() )
+{
+	m_psz = psz;
+	m_pMainFn = pMainFn;
+	if (psz == 0 || pMainFn == 0)
+		Plat_FatalErrorFunc("Name and function pointer must be set\n");
+	
+	GetBuildFileInfo()->m_stages.AppendTail(this);
+};
+
+CBuildDependentFile::CBuildDependentFile( const char *psz )
+{
+	GetBuildFileInfo()->m_dependantFiles.AppendTail(psz);
+}
+
+EXPOSE_INTERFACE_GLOBALVAR(BuildFileInfo_t, BuildFileInfo_t, BUILD_FILE_INFO_INTERFACE_NAME, buildfileinfo);
diff --git a/fpc/buildfile/interfaces.o b/fpc/buildfile/interfaces.o
new file mode 100644
index 0000000000000000000000000000000000000000..62eb143f5ae1821216c55c0d27101dd56b2f7eee
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diff --git a/fpc/library/builder.cpp b/fpc/library/builder.cpp
index e69de29..c7abd52 100644
--- a/fpc/library/builder.cpp
+++ b/fpc/library/builder.cpp
@@ -0,0 +1,96 @@
+#include "builder.h"
+#include "ld.h"
+#include "c.h"
+
+class CProjectBuilder : public IProjectBuilder
+{
+public:
+	virtual BuildFile_t *BuildProject( const char *szProjectName, const char *szPath ) override;
+
+	BuildFile_t *m_pBuildFiles = NULL;
+};
+
+
+static CProjectBuilder s_projectBuilder;
+
+EXPOSE_INTERFACE_GLOBALVAR(CProjectBuilder, IProjectBuilder, PROJECT_BUILDER_INTERFACE_NAME, s_projectBuilder)
+
+IProjectBuilder *ProjectBuilder()
+{
+	return &s_projectBuilder;
+};
+
+BuildFile_t *CProjectBuilder::BuildProject( const char *szProjectName, const char *szPath )
+{
+	CProject_t stCompileProject = {};
+	LinkProject_t stLinkProject = {};
+	CUtlString szBuildLibrary;
+	void *pLibrary;
+	CreateInterfaceFn pBuildFactory;
+	BuildFileInfo_t *pBuildFileInfo;
+	BuildFileInfo_t stBuildFileInfo;
+	BuildFile_t *pBuildFile = NULL;
+
+	CUtlString szWd = CUtlString(szPath).GetDirectory();
+
+	Plat_SetWorkingDir(szWd);
+
+	
+	stCompileProject.m_szName = szProjectName;
+	stCompileProject.files = {
+		szPath,
+	};
+	stCompileProject.includeDirectories = {CUtlString("%s/public",filesystem2->OwnDirectory()),CUtlString("%s/public", filesystem2->BuildDirectory()), CUtlString("%s/../public",filesystem2->OwnDirectory()),CUtlString("%s/../public", filesystem2->BuildDirectory())};
+	stCompileProject.bFPIC = true;
+	stCompileProject.m_target = Target_t::HostTarget();
+
+	stLinkProject = ccompiler->Compile(&stCompileProject);
+	stLinkProject.linkType = ELINK_DYNAMIC_LIBRARY;
+	stLinkProject.m_target = Target_t::HostTarget();
+	stLinkProject.objects.AppendHead({CUtlString("%s/libfpcbuild.a",filesystem2->OwnDirectory())});
+	stLinkProject.objects.AppendHead({CUtlString("%s/libtier2.a",filesystem2->OwnDirectory())});
+	stLinkProject.objects.AppendHead({CUtlString("%s/libtier1.a",filesystem2->OwnDirectory())});
+	szBuildLibrary = linker->Link(&stLinkProject);
+
+	pLibrary = Plat_LoadLibrary(szBuildLibrary);
+	if ( !pLibrary )
+		return NULL;
+
+	pBuildFactory = Sys_GetFactory(pLibrary);
+	if (!pBuildFactory)
+	{
+		V_printf("Failed to find CreateInterface\n");
+		Plat_UnloadLibrary(szBuildLibrary);
+		return NULL;
+	}
+
+	pBuildFileInfo = (BuildFileInfo_t*)pBuildFactory(BUILD_FILE_INFO_INTERFACE_NAME, NULL);
+	if (!pBuildFileInfo)
+	{
+		V_printf("Failed to find build file info interface\n");
+		Plat_UnloadLibrary(szBuildLibrary);
+		return NULL;
+	}
+	stBuildFileInfo = *pBuildFileInfo;
+	for (auto a: stBuildFileInfo.m_dependantFiles)
+	{
+		BuildProject("something", CUtlString("%s/build.cpp",a));
+	}
+	
+	Plat_SetWorkingDir(szWd);
+
+
+	for (auto &build: stBuildFileInfo.m_stages)
+	{
+		build->m_pMainFn();
+	};
+
+	pBuildFile = new BuildFile_t;
+	pBuildFile->m_szOutputFile = szBuildLibrary;
+	pBuildFile->m_pLibrary = pLibrary;
+	pBuildFile->m_pNext = m_pBuildFiles;
+	m_pBuildFiles = pBuildFile;
+	
+
+	return pBuildFile;
+}
diff --git a/fpc/library/clang/ld.cpp b/fpc/library/clang/ld.cpp
index d43e59d..a6e16e5 100644
--- a/fpc/library/clang/ld.cpp
+++ b/fpc/library/clang/ld.cpp
@@ -156,7 +156,7 @@ CUtlString CClangLinker::Link( LinkProject_t *pProject )
 		}
 		if (pProject->m_target.kernel == TARGET_KERNEL_LINUX || pProject->m_target.kernel == TARGET_KERNEL_ANDROID)
 		{
-			args.AppendTail("-rdynamic");
+			//args.AppendTail("-rdynamic");
 			args.AppendTail("-Wl,-rpath,$ORIGIN");
 		}
 
diff --git a/fpc/library/helper.cpp b/fpc/library/helper.cpp
index 600b66a..042f148 100644
--- a/fpc/library/helper.cpp
+++ b/fpc/library/helper.cpp
@@ -133,21 +133,4 @@ bool CPOSIXFileSystem2::ShouldRecompile(const char *szSource, const char *szOutp
 	return outbuf.st_mtime < srcbuf.st_mtime;
 };
 
-CUtlVector<CBuildStage*> g_buildStages;
-
-CBuildStage::CBuildStage( const char *psz, int(*pMainFn)() )
-{
-	m_psz = psz;
-	m_pMainFn = pMainFn;
-	if (psz == 0 || pMainFn == 0)
-		Plat_FatalErrorFunc("Name and function pointer must be set\n");
-	
-	g_buildStages.AppendTail(this);
-};
-
-CUtlVector<CBuildStage*>& BuildStages()
-{
-	return g_buildStages;
-}
-
 IINIFile *g_pConfig;
diff --git a/fpc/library/ld.cpp b/fpc/library/ld.cpp
index f7a2a97..a8e7290 100644
--- a/fpc/library/ld.cpp
+++ b/fpc/library/ld.cpp
@@ -1,3 +1,8 @@
 #include "ld.h"
 
 ILinker *linker;
+
+void LinkProject_t::AddObject( Object_t object )
+{
+	objects.AppendTail(object);
+};
diff --git a/fpc/library/windows/ld.cpp b/fpc/library/windows/ld.cpp
index 3e26e2c..7f1e859 100644
--- a/fpc/library/windows/ld.cpp
+++ b/fpc/library/windows/ld.cpp
@@ -115,7 +115,7 @@ CUtlString CMSVCLinker::Link( LinkProject_t *pProject )
 			"/nologo"
 		};
 
-		const char *szWindowsPath = GetWindowsPath(szOutputFile);
+		const char *szWindowsPath = filesystem2->GetWindowsPath(szOutputFile);
 		args.AppendTail(CUtlString("/out:%s", szWindowsPath));
 		V_free((void*)szWindowsPath);
 
diff --git a/fpc/main.cpp b/fpc/main.cpp
index aa8b638..21dd2bf 100644
--- a/fpc/main.cpp
+++ b/fpc/main.cpp
@@ -13,6 +13,7 @@
 #include "c.h"
 #include "signal.h"
 #include "libgen.h"
+#include "builder.h"
 
 CUtlString owndir;
 extern char *g_szBuildDir;
@@ -24,14 +25,9 @@ void build_tier0()
 
 int build()
 {
-	CreateInterfaceFn pBuildFactory;
-	BuildFileInfo_t *pBuildFileInfo;
-	CProject_t compileScriptProject = {};
-	compileScriptProject.m_szName = "build";
-	compileScriptProject.files = {"build.cpp"};
-	compileScriptProject.includeDirectories = {CUtlString("%s/public",filesystem2->OwnDirectory()),CUtlString("%s/public", filesystem2->BuildDirectory()), CUtlString("%s/../public",filesystem2->OwnDirectory()),CUtlString("%s/../public", filesystem2->BuildDirectory())};
-	compileScriptProject.bFPIC = true;
-	compileScriptProject.m_target = Target_t::HostTarget();
+	BuildFile_t *pBuildFile = ProjectBuilder()->BuildProject("main",CUtlString("%s/build.cpp",g_szBuildDir));
+
+	/*
 
 	LinkProject_t linkScriptProject = ccompiler->Compile(&compileScriptProject);
 	linkScriptProject.linkType = ELINK_DYNAMIC_LIBRARY;
@@ -57,7 +53,7 @@ int build()
 	{
 		build->m_pMainFn();
 	};
-	Plat_UnloadLibrary(scriptDLL);
+	*/
 
 	ccompiler->GenerateLinterData();
 
@@ -86,11 +82,13 @@ void IEngine_Signal(int sig)
 
 int main(int c, char **v)
 {	
+
 	char path[1024];
 
 	CUtlString buildcppDir = getcwd(path, 1024);
 	owndir = buildcppDir;
 	char *szBuildcppDir = buildcppDir.GetString();
+	
 findbuild:
 	FILE* file = V_fopen("build.cpp", "rb");
 	if (!file)
@@ -126,6 +124,11 @@ findbuild:
 	filesystem2 = (IFileSystem2*)CreateInterface(FILE_SYSTEM_2_INTERFACE_NAME, NULL);
 	ccompiler = (ICCompiler*)CreateInterface(CLANG_C_COMPILER_INTERFACE_NAME, NULL);
 	linker = (ILinker*)CreateInterface(CLANG_LINKER_INTERFACE_NAME, NULL);
+	
+	void *pFilesystem = Plat_LoadLibrary(CUtlString("%s/libfilesystem_std.so",filesystem2->OwnDirectory()));
+	CreateInterfaceFn pFilesystemFactory = Sys_GetFactory(pFilesystem);
+
+	filesystem = (IFileSystem*)CreateInterface(FILESYSTEM_INTERFACE_VERSION, NULL);
 	filesystem->Init();
 
 	g_pConfig = INIManager()->ReadFile(".fpccfg");
diff --git a/fpc/public/builder.h b/fpc/public/builder.h
index c9add11..c9f75d7 100644
--- a/fpc/public/builder.h
+++ b/fpc/public/builder.h
@@ -3,10 +3,11 @@
 
 #include "tier1/interface.h"
 #include "tier1/utlvector.h"
+#include "tier1/utlstring.h"
 
 struct BuildOutput_t
 {
-
+	const char *m_szName;
 };
 
 struct BuildOutputs_t
@@ -17,15 +18,21 @@ struct BuildOutputs_t
 
 struct BuildFile_t
 {
+	CUtlString m_szOutputFile;
 	void *m_pLibrary;
 	CUtlVector<BuildOutputs_t> m_compiledProjects;
+
+	struct BuildFile_t *m_pNext;
 };
 
 abstract_class IProjectBuilder
 {
-	virtual BuildFile_t *BuildProject( const char *szPath ) = 0;
+public:
+	virtual BuildFile_t *BuildProject( const char *szProjectName, const char *szPath ) = 0;
 };
 
 IProjectBuilder *ProjectBuilder();
 
+#define PROJECT_BUILDER_INTERFACE_NAME "ProjectBuilder001"
+
 #endif
diff --git a/fpc/public/dependencymanager.h b/fpc/public/dependencymanager.h
new file mode 100644
index 0000000..e69de29
diff --git a/fpc/public/helper.h b/fpc/public/helper.h
index f4f9ed5..ef27a56 100644
--- a/fpc/public/helper.h
+++ b/fpc/public/helper.h
@@ -90,7 +90,8 @@ public:
 
 class CBuildDependentFile
 {
-
+public:
+	CBuildDependentFile( const char *psz );
 };
 
 //-----------------------------------------------------------------------------
@@ -102,11 +103,12 @@ class CBuildDependentFile
 //	}
 //-----------------------------------------------------------------------------
 #define DECLARE_BUILD_STAGE(sz) \
-int __build_stage_##sz(); \
-CBuildStage __##sz##_build_stage(#sz, __build_stage_##sz); \
-int __build_stage_##sz()
+static int __build_stage_##sz(); \
+static CBuildStage __##sz##_build_stage(#sz, __build_stage_##sz); \
+static int __build_stage_##sz()
 
-#define ADD_DEPENDENCY_BUILD_FILE(sz) \
+#define ADD_DEPENDENCY_BUILD_FILE(name, path) \
+static CBuildDependentFile __##name##DependencyFile(path);
 
 #define ADD_OUTPUT_LIBRARY(sz) \
 
@@ -116,7 +118,7 @@ int __build_stage_##sz()
 
 struct BuildFileInfo_t
 {
-	CUtlVector<const char*> m_dependantFile;
+	CUtlVector<const char*> m_dependantFiles;
 	CUtlVector<CBuildStage*> m_stages;
 };
 
diff --git a/fpc/public/interfaces.cpp b/fpc/public/interfaces.cpp
deleted file mode 100644
index af5492a..0000000
--- a/fpc/public/interfaces.cpp
+++ /dev/null
@@ -1,11 +0,0 @@
-#include "tier1/interface.h"
-#include "helper.h"
-
-static BuildFileInfo_t buildfileinfo = {};
-BuildFileInfo_t *GetBuildFileInfo()
-{
-	return &buildfileinfo;
-}
-
-
-EXPOSE_INTERFACE_GLOBALVAR(BuildFileInfo_t, BuildFileInfo_t, BUILD_FILE_INFO_INTERFACE_NAME, buildfileinfo);
diff --git a/fpc/public/ld.h b/fpc/public/ld.h
index 81b3aff..34bf80a 100644
--- a/fpc/public/ld.h
+++ b/fpc/public/ld.h
@@ -46,7 +46,7 @@ enum EWindowsSubsystem
 struct LinkProject_t: public CPUProject_t
 {
 public:
-	void AddObject( Object_t& object );
+	void AddObject( Object_t object );
 
 	// output file
 	ELinkType linkType;
diff --git a/fpc/public/lsp.h b/fpc/public/lsp.h
new file mode 100644
index 0000000..af98124
--- /dev/null
+++ b/fpc/public/lsp.h
@@ -0,0 +1,11 @@
+#ifndef LSP_H
+#define LSP_H
+
+#include "tier0/platform.h"
+
+abstract_class IBasicLSP
+{
+	virtual void GenerateConfig() = 0;
+};
+
+#endif