makefile: move pdlibc to extlib, add C++ stub standard headers

It now kind of compiles with x86_64-elf gcc (does not link though)

cppruntime/perm.hpp

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <cstdint>
+#include <stdint.h>
 
 
 namespace helos {

driver/block/blockdevice.cpp

@@ -22,8 +22,8 @@ public:
 		return backing->BlockSize() * cnt;
 	}
 
-	::helos::Permission Permission() const override {
-		return backing->Permission();
+	::helos::Permission DevicePermission() const override {
+		return backing->DevicePermission();
 	}
 
 	uint64_t ReadBlock(uint64_t blockOffset, void *data, uint64_t blockCount) const override {

driver/block/blockdevice.hpp

@@ -25,7 +25,7 @@ public:
 
 
 	// Permission returns the permission on the entire device (Read, Write, Exec)
-	virtual Permission Permission() const {
+	virtual Permission DevicePermission() const {
 		return PermRead | PermWrite | PermExecute;
 	}
 

driver/block/ramdisk.cpp

@@ -2,7 +2,7 @@
 #include "ramdisk.hpp"
 #include "../../memory/memory.h"
 #include "../../memory/paging_internal.h"
-#include <cstring>
+#include <string.h>
 
 namespace helos {
 

driver/block/ramdisk.hpp

@@ -25,7 +25,7 @@ public:
 	uint64_t Size() const override { return blockcount; }
 	uint64_t SizeBytes() const override { return blocksize * blockcount; }
 
-	::helos::Permission Permission() const override { return perm; }
+	::helos::Permission DevicePermission() const override { return perm; }
 
 	uint64_t ReadBlock(uint64_t blockOffset, void *data, uint64_t blockCount) const override;
 	uint64_t WriteBlock(uint64_t blockOffset, const void *data, uint64_t blockCount) override;

driver/filesystem/fat/fat.cpp

@@ -1,6 +1,6 @@
 
 #include "fat.hpp"
-#include <cstring>
+#include <string.h>
 
 namespace helos {
 namespace filesystem {

libstd/README

@@ -0,0 +1,5 @@
+
+This folder is in place for the most standard headers not in the PDLibC extlib.
+
+Mostly for C++ standard headers.
+

libstd/__cpp_config.hpp

@@ -0,0 +1,25 @@
+#pragma once
+
+
+#if __cplusplus >= 201103L
+#define __CXX11
+#endif
+#if __cplusplus >= 201402L
+#define __CXX14
+#endif
+#if __cplusplus >= 201703L
+#define __CXX17
+#endif
+#if __cplusplus >= 202002L
+#define __CXX20
+#endif
+
+
+#ifdef __CXX11
+#define __NOTHROW noexcept
+#define __NOTHROW_SINCECXX11 __NOTHROW
+#else
+#define __NOTHROW throw()
+#define __NOTHROW_SINCECXX11
+#endif
+

libstd/exception

@@ -0,0 +1,23 @@
+#pragma once
+#include <__cpp_config.hpp>
+
+extern "C++" {
+namespace std {
+
+
+class exception {
+public:
+	exception() __NOTHROW {}
+#ifdef __CXX11
+	exception(const exception &) = default;
+	exception &operator=(const exception &) = default;
+	exception(exception &&)                 = default;
+	exception &operator=(exception &&) = default;
+#endif
+
+	virtual const char *what() const __NOTHROW { return "std::exception"; };
+};
+
+
+} // namespace std
+}

libstd/new

@@ -0,0 +1,51 @@
+#pragma once
+#include <__cpp_config.hpp>
+
+#include <exception>
+
+extern "C++" {
+namespace std {
+
+
+class bad_alloc: public exception {
+public:
+	bad_alloc() __NOTHROW {}
+#ifdef __CXX11
+	bad_alloc(const bad_alloc &) = default;
+	bad_alloc &operator=(const bad_alloc &) = default;
+#endif
+	virtual ~bad_alloc() __NOTHROW {}
+
+	virtual const char *what() const __NOTHROW { return "std::bad_alloc"; }
+};
+
+#ifdef __CXX11
+class bad_array_new_length: public bad_alloc {
+public:
+	bad_array_new_length() __NOTHROW {}
+	virtual ~bad_array_new_length() __NOTHROW {}
+
+	virtual const char *what() const __NOTHROW { return "std::bad_array_new_length"; }
+};
+#endif
+
+
+#ifdef __CXX17
+enum class align_val_t : size_t {};
+#endif
+
+struct nothrow_t {
+#ifdef __CXX11
+	explicit nothrow_t() = default;
+#endif
+};
+extern const nothrow_t nothrow;
+
+
+// new_handler omitted
+
+// new/delete omitted, use memory/memory.hpp
+
+
+} // namespace std
+}

main.h

@@ -1,3 +1,6 @@
+#pragma once
+
+#include "stddef.h"
 
 #ifdef __cplusplus
 extern "C" {

memory/memory.hpp

@@ -1,7 +1,6 @@
 #pragma once
 
-#include <cstddef>
-#include <limits>
+#include <stddef.h>
 #include <new>
 
 #include "memory.h"
@@ -30,11 +29,11 @@ public:
 	template<typename Other>
 	constexpr kAllocator(const kAllocator<Other> &) {}
 
-	Type *allocate(std::size_t n) {
+	Type *allocate(size_t n) {
 		return kMalloc(n * sizeof(Type));
 	}
 
-	void deallocate(Type *p, std::size_t n) {
+	void deallocate(Type *p, size_t n) {
 		kFree(p);
 	}
 };
@@ -59,25 +58,25 @@ bool operator!=(const kAllocator<T> &, const kAllocator<U> &) {
 //
 // operators new and delete only call kMalloc/kFree, so C++ code
 // must stay after paging setup
-void *operator new(std::size_t size);
-void *operator new[](std::size_t size);
+void *operator new(size_t size);
+void *operator new[](size_t size);
 
 #if __cplusplus >= 201703L
-void *operator new(std::size_t size, std::align_val_t align);
-void *operator new[](std::size_t size, std::align_val_t align);
+void *operator new(size_t size, std::align_val_t align);
+void *operator new[](size_t size, std::align_val_t align);
 #endif
 
 void operator delete(void *ptr) noexcept;
 void operator delete[](void *ptr) noexcept;
 #if __cplusplus >= 201402L
-void operator delete(void *ptr, std::size_t size) noexcept;
-void operator delete[](void *ptr, std::size_t size) noexcept;
+void operator delete(void *ptr, size_t size) noexcept;
+void operator delete[](void *ptr, size_t size) noexcept;
 #endif
 #if __cplusplus >= 201703L
 void operator delete(void *ptr, std::align_val_t align) noexcept;
 void operator delete[](void *ptr, std::align_val_t align) noexcept;
-void operator delete(void *ptr, std::size_t size, std::align_val_t align) noexcept;
-void operator delete[](void *ptr, std::size_t size, std::align_val_t align) noexcept;
+void operator delete(void *ptr, size_t size, std::align_val_t align) noexcept;
+void operator delete[](void *ptr, size_t size, std::align_val_t align) noexcept;
 #endif
 
 #endif // HELOS

memory/memory_cpp.cpp

@@ -3,25 +3,25 @@
 
 #include "../extlib/dlmalloc/malloc-2.8.6.h"
 
-void *operator new(std::size_t size) { return kMalloc(size); }
-void *operator new[](std::size_t size) { return kMalloc(size); }
+void *operator new(size_t size) { return kMalloc(size); }
+void *operator new[](size_t size) { return kMalloc(size); }
 
 void operator delete(void *ptr) noexcept { kFree(ptr); }
 void operator delete[](void *ptr) noexcept { kFree(ptr); }
 
 
 #if __cplusplus >= 201703L
-void *operator new(std::size_t size, std::align_val_t align) { return dlmemalign((size_t)align, size); }
-void *operator new[](std::size_t size, std::align_val_t align) { return dlmemalign((size_t)align, size); }
+void *operator new(size_t size, std::align_val_t align) { return dlmemalign((size_t)align, size); }
+void *operator new[](size_t size, std::align_val_t align) { return dlmemalign((size_t)align, size); }
 #endif
 
 #if __cplusplus >= 201402L
-void operator delete(void *ptr, std::size_t size) noexcept { kFree(ptr); }
-void operator delete[](void *ptr, std::size_t size) noexcept { kFree(ptr); }
+void operator delete(void *ptr, size_t size) noexcept { kFree(ptr); }
+void operator delete[](void *ptr, size_t size) noexcept { kFree(ptr); }
 #endif
 #if __cplusplus >= 201703L
 void operator delete(void *ptr, std::align_val_t align) noexcept { kFree(ptr); }
 void operator delete[](void *ptr, std::align_val_t align) noexcept { kFree(ptr); }
-void operator delete(void *ptr, std::size_t size, std::align_val_t align) noexcept { kFree(ptr); }
-void operator delete[](void *ptr, std::size_t size, std::align_val_t align) noexcept { kFree(ptr); }
+void operator delete(void *ptr, size_t size, std::align_val_t align) noexcept { kFree(ptr); }
+void operator delete[](void *ptr, size_t size, std::align_val_t align) noexcept { kFree(ptr); }
 #endif

util/stack.c

@@ -1,7 +1,7 @@
 
 #include "stack.h"
 #include "../runtime/stdio.h"
-#include <memory.h>
+#include <string.h>
 
 
 void stack_InitBuffered(stack *s, void *buffer, uintptr_t size) {