mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-20 15:48:18 +01:00
135 lines
5.0 KiB
C++
135 lines
5.0 KiB
C++
//===-- crtbegin.c - Start of constructors and destructors ----------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
#if 0
|
|
#define DBG(...) DebugLog(2, __VA_ARGS__)
|
|
#else
|
|
#define DBG(...)
|
|
#endif
|
|
|
|
|
|
extern "C" {
|
|
// #include <stddef.h>
|
|
}
|
|
#include "globals_ctor.h"
|
|
#include <Platform/Platform.h>
|
|
|
|
|
|
|
|
typedef void (ctor)(void);
|
|
typedef ctor* ctor_ptr;
|
|
|
|
#if defined(__clang__)
|
|
|
|
|
|
void construct_globals_objects()
|
|
{
|
|
|
|
UINT32 PeCoffHeaderOffset = 0;
|
|
EFI_IMAGE_DOS_HEADER* DosHdr = (EFI_IMAGE_DOS_HEADER*)SelfLoadedImage->ImageBase;
|
|
if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
|
|
// DOS image header is present, so read the PE header after the DOS image header
|
|
PeCoffHeaderOffset = DosHdr->e_lfanew;
|
|
}
|
|
DBG("ImageContext.PeCoffHeaderOffset: %08X %d\n", PeCoffHeaderOffset, PeCoffHeaderOffset);
|
|
|
|
|
|
EFI_IMAGE_OPTIONAL_HEADER_UNION* ImgHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *) ((UINTN) (SelfLoadedImage->ImageBase) + PeCoffHeaderOffset);
|
|
EFI_IMAGE_SECTION_HEADER* SectionHeader = (EFI_IMAGE_SECTION_HEADER *) ((UINTN) ImgHdr + sizeof(UINT32) + sizeof(EFI_IMAGE_FILE_HEADER) + ImgHdr->Pe32.FileHeader.SizeOfOptionalHeader);
|
|
|
|
for (int Index = 0; Index < ImgHdr->Pe32.FileHeader.NumberOfSections; Index++, SectionHeader++)
|
|
{
|
|
DBG("SectionHeader->Name=%s\n", SectionHeader->Name);
|
|
// DBG("SectionHeader->PointerToRawData=%8X\n", SectionHeader->PointerToRawData);
|
|
// DBG("SectionHeader->SizeOfRawData=%8X\n", SectionHeader->SizeOfRawData);
|
|
DBG("SectionHeader->VirtualSize=%8X\n", SectionHeader->Misc.VirtualSize);
|
|
if (strcmp((CONST CHAR8*) SectionHeader->Name, ".ctorss") == 0)
|
|
{
|
|
|
|
ctor_ptr* currentCtor = (ctor_ptr*) (((UINTN) (SelfLoadedImage->ImageBase)) + SectionHeader->PointerToRawData);
|
|
ctor_ptr* ctorend = (ctor_ptr*) (((UINTN) (SelfLoadedImage->ImageBase)) + SectionHeader->PointerToRawData + SectionHeader->Misc.VirtualSize);
|
|
while (currentCtor < ctorend)
|
|
{
|
|
DBG("¤tCtor %X %d\n", (UINTN) (currentCtor), (UINTN) (currentCtor));
|
|
DBG("currentCtor %X %d\n", (UINTN) (*currentCtor), (UINTN) (*currentCtor));
|
|
if (*currentCtor != NULL) (*currentCtor)();
|
|
currentCtor++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#elif defined(__GNUC__)
|
|
|
|
__attribute__((visibility("hidden"))) void *__dso_handle = &__dso_handle;
|
|
|
|
extern int __beginning_of_section_ctors, __end_of_section_ctors;
|
|
|
|
ctor_ptr* p = (ctor_ptr*)&__beginning_of_section_ctors;
|
|
ctor_ptr* pend = (ctor_ptr*)&__end_of_section_ctors;
|
|
|
|
|
|
void construct_globals_objects() {
|
|
DBG("CTOR %X %d\n", (UINTN)p, (UINTN)p);
|
|
// DBG("CTOR %X %d\n", (UINTN)p[0], (UINTN)p[0]);
|
|
while ( p < pend ) {
|
|
DBG("CTOR %X %d\n", (UINTN)p[0], (UINTN)p[0]);
|
|
(*p)();
|
|
p++;
|
|
}
|
|
// DBG("CTOR %X %d\n", (UINTN)__CTOR_LIST__, (UINTN)__CTOR_LIST__);
|
|
// __do_init();
|
|
// const size_t n = __CTOR_LIST_END__ - __CTOR_LIST__ - 1;
|
|
// size_t n = 10;
|
|
// for (size_t i = 0; i < n; i++) {
|
|
// DBG("CTOR %X %d\n", (UINTN)__CTOR_LIST__[i], (UINTN)__CTOR_LIST__[i]);
|
|
// }
|
|
// __CTOR_LIST__[0]();
|
|
}
|
|
|
|
#elif defined(_MSC_VER)
|
|
|
|
void construct_globals_objects()
|
|
{
|
|
DBG("Work in progress\n");
|
|
UINT32 PeCoffHeaderOffset = 0;
|
|
EFI_IMAGE_DOS_HEADER* DosHdr = (EFI_IMAGE_DOS_HEADER*)SelfLoadedImage->ImageBase;
|
|
if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
|
|
// DOS image header is present, so read the PE header after the DOS image header
|
|
PeCoffHeaderOffset = DosHdr->e_lfanew;
|
|
}
|
|
DBG("ImageContext.PeCoffHeaderOffset: %08X %d\n", PeCoffHeaderOffset, PeCoffHeaderOffset);
|
|
|
|
|
|
EFI_IMAGE_OPTIONAL_HEADER_UNION* ImgHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *) ((UINTN) (SelfLoadedImage->ImageBase) + PeCoffHeaderOffset);
|
|
EFI_IMAGE_SECTION_HEADER* SectionHeader = (EFI_IMAGE_SECTION_HEADER *) ((UINTN) ImgHdr + sizeof(UINT32) + sizeof(EFI_IMAGE_FILE_HEADER) + ImgHdr->Pe32.FileHeader.SizeOfOptionalHeader);
|
|
|
|
for (int Index = 0; Index < ImgHdr->Pe32.FileHeader.NumberOfSections; Index++, SectionHeader++)
|
|
{
|
|
DBG("SectionHeader->Name=%s\n", SectionHeader->Name);
|
|
// DBG("SectionHeader->PointerToRawData=%8X\n", SectionHeader->PointerToRawData);
|
|
// DBG("SectionHeader->SizeOfRawData=%8X\n", SectionHeader->SizeOfRawData);
|
|
DBG("SectionHeader->VirtualSize=%8X\n", SectionHeader->Misc.VirtualSize);
|
|
if (strcmp((CONST CHAR8*) SectionHeader->Name, ".CRT") == 0)
|
|
{
|
|
|
|
ctor_ptr* currentCtor = (ctor_ptr*) (((UINTN) (SelfLoadedImage->ImageBase)) + SectionHeader->PointerToRawData);
|
|
ctor_ptr* ctorend = (ctor_ptr*) (((UINTN) (SelfLoadedImage->ImageBase)) + SectionHeader->PointerToRawData + SectionHeader->Misc.VirtualSize);
|
|
while (currentCtor < ctorend)
|
|
{
|
|
DBG("¤tCtor %X %d\n", (UINTN) (currentCtor), (UINTN) (currentCtor));
|
|
DBG("currentCtor %X %d\n", (UINTN) (*currentCtor), (UINTN) (*currentCtor));
|
|
if (*currentCtor != NULL) (*currentCtor)();
|
|
currentCtor++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
#endif
|