From 610f91d87152cbe48d3054fcf437d8239da6ef35 Mon Sep 17 00:00:00 2001 From: Amlal Date: Sat, 21 Dec 2024 21:59:13 +0100 Subject: IMP: :boom: Breaking changes some checks are needed to be done. Signed-off-by: Amlal --- dev/Kernel/src/IPEFDLLObject.cc | 103 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 dev/Kernel/src/IPEFDLLObject.cc (limited to 'dev/Kernel/src/IPEFDLLObject.cc') diff --git a/dev/Kernel/src/IPEFDLLObject.cc b/dev/Kernel/src/IPEFDLLObject.cc new file mode 100644 index 00000000..0089b877 --- /dev/null +++ b/dev/Kernel/src/IPEFDLLObject.cc @@ -0,0 +1,103 @@ +/* + * ======================================================== + * + * minoskrnl + * Copyright (C) 2024, TQ B.V, all rights reserved., all rights reserved. + * + * ======================================================== + */ + +#include +#include +#include +#include +#include +#include + +/* ------------------------------------------- + + Revision History: + + 01/02/24: Reworked dll ABI, expect a rtl_init_dylib and + rtl_fini_dylib (amlel) 15/02/24: Breaking changes, changed the name of the + routines. (amlel) + + 07/28/24: Replace rt_library_free with rtl_fini_dylib + + 10/8/24: FIX: Fix log comment. + + ------------------------------------------- */ + +using namespace Kernel; + +/***********************************************************************************/ +/// @file IPEFDLLObject.cc +/// @brief PEF's DLL runtime. +/***********************************************************************************/ + +/***********************************************************************************/ +/** @brief Library initializer. */ +/***********************************************************************************/ + +EXTERN_C IDLL rtl_init_dylib(UserProcess* header) +{ + IDLL dll_obj = tls_new_class(); + + if (!dll_obj) + { + header->Crash(); + return nullptr; + } + + dll_obj->Mount(tls_new_class()); + + if (!dll_obj->Get()) + { + tls_delete_class(dll_obj); + header->Crash(); + + return nullptr; + } + + dll_obj->Get()->ImageObject = + header->Image.fBlob; + + if (!dll_obj->Get()->ImageObject) + { + tls_delete_class(dll_obj); + header->Crash(); + + return nullptr; + } + + dll_obj->Get()->ImageEntrypointOffset = + dll_obj->Load(kPefStart, rt_string_len(kPefStart, 0), kPefCode); + + return dll_obj; +} + +/***********************************************************************************/ +/** @brief Frees the dll_obj. */ +/** @note Please check if the dll_obj got freed! */ +/** @param dll_obj The dll_obj to free. */ +/** @param successful Reports if successful or not. */ +/***********************************************************************************/ + +EXTERN_C Void rtl_fini_dylib(UserProcess* header, IDLL dll_obj, Bool* successful) +{ + MUST_PASS(successful); + + // sanity check (will also trigger a bug check if this fails) + if (dll_obj == nullptr) + { + *successful = false; + header->Crash(); + } + + delete dll_obj->Get(); + delete dll_obj; + + dll_obj = nullptr; + + *successful = true; +} -- cgit v1.2.3