mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-07-11 07:19:20 +00:00
Dynamic ELF stub
This commit is contained in:
@ -172,8 +172,10 @@ namespace Execute
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memset(MemoryImage, 0, ElfAppSize);
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for (uint64_t i = 0; i < TO_PAGES(ElfAppSize); i++)
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{
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pva.Remap((void *)((uint64_t)ProgramHeader->p_vaddr + (i * PAGE_SIZE)), (void *)((uint64_t)MemoryImage + (i * PAGE_SIZE)), Memory::PTFlag::RW | Memory::PTFlag::US);
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debug("Mapping: %#lx -> %#lx", (uint64_t)ProgramHeader->p_vaddr + (i * PAGE_SIZE), (uint64_t)MemoryImage + (i * PAGE_SIZE));
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uint64_t Address = (uint64_t)ProgramHeader->p_vaddr;
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Address &= 0xFFFFFFFFFFFFF000;
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pva.Remap((void *)((uint64_t)Address + (i * PAGE_SIZE)), (void *)((uint64_t)MemoryImage + (i * PAGE_SIZE)), Memory::PTFlag::RW | Memory::PTFlag::US);
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debug("Mapping: %#lx -> %#lx", (uint64_t)Address + (i * PAGE_SIZE), (uint64_t)MemoryImage + (i * PAGE_SIZE));
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}
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}
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@ -201,6 +203,210 @@ namespace Execute
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debug("memcpy operation: %#lx to %#lx for length %ld", (uint8_t *)BaseImage + ItrProgramHeader.p_offset, MemoryImage + MAddr, ItrProgramHeader.p_filesz);
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break;
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}
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case PT_DYNAMIC:
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{
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debug("PT_DYNAMIC - Offset: %#lx VirtAddr: %#lx FileSiz: %ld MemSiz: %ld Align: %#lx",
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ItrProgramHeader.p_offset, ItrProgramHeader.p_vaddr,
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ItrProgramHeader.p_filesz, ItrProgramHeader.p_memsz, ItrProgramHeader.p_align);
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Elf64_Dyn *Dynamic = (Elf64_Dyn *)((uint8_t *)BaseImage + ItrProgramHeader.p_offset);
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for (uint64_t i = 0; i < ItrProgramHeader.p_filesz / sizeof(Elf64_Dyn); i++)
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{
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switch (Dynamic[i].d_tag)
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{
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case DT_NULL:
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debug("DT_NULL");
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break;
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case DT_NEEDED:
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{
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fixme("DT_NEEDED - Name: %s", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_PLTRELSZ:
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{
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fixme("DT_PLTRELSZ - Size: %ld", Dynamic[i].d_un.d_val);
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}
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case DT_PLTGOT:
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{
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fixme("DT_PLTGOT - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_HASH:
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{
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fixme("DT_HASH - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_STRTAB:
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{
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fixme("DT_STRTAB - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_SYMTAB:
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{
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fixme("DT_SYMTAB - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_RELA:
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{
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fixme("DT_RELA - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_RELASZ:
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{
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fixme("DT_RELASZ - Size: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_RELAENT:
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{
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fixme("DT_RELAENT - Size: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_STRSZ:
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{
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fixme("DT_STRSZ - Size: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_SYMENT:
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{
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fixme("DT_SYMENT - Size: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_INIT:
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{
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fixme("DT_INIT - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_FINI:
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{
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fixme("DT_FINI - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_SONAME:
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{
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fixme("DT_SONAME - Name: %s", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_RPATH:
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{
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fixme("DT_RPATH - Name: %s", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_SYMBOLIC:
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{
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fixme("DT_SYMBOLIC - Name: %s", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_REL:
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{
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fixme("DT_REL - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_RELSZ:
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{
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fixme("DT_RELSZ - Size: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_RELENT:
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{
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fixme("DT_RELENT - Size: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_PLTREL:
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{
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fixme("DT_PLTREL - Type: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_DEBUG:
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{
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fixme("DT_DEBUG - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_TEXTREL:
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{
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fixme("DT_TEXTREL - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_JMPREL:
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{
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fixme("DT_JMPREL - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_BIND_NOW:
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{
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fixme("DT_BIND_NOW - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_INIT_ARRAY:
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{
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fixme("DT_INIT_ARRAY - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_FINI_ARRAY:
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{
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fixme("DT_FINI_ARRAY - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_INIT_ARRAYSZ:
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{
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fixme("DT_INIT_ARRAYSZ - Size: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_FINI_ARRAYSZ:
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{
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fixme("DT_FINI_ARRAYSZ - Size: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_RUNPATH:
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{
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fixme("DT_RUNPATH - Name: %s", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_FLAGS:
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{
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fixme("DT_FLAGS - Flags: %#lx", Dynamic[i].d_un.d_val);
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break;
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}
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case DT_PREINIT_ARRAY:
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{
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fixme("DT_PREINIT_ARRAY - Address: %#lx", Dynamic[i].d_un.d_ptr);
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break;
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}
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case DT_PREINIT_ARRAYSZ:
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{
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fixme("DT_PREINIT_ARRAYSZ - Size: %ld", Dynamic[i].d_un.d_val);
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break;
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}
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/* ... */
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default:
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fixme("DT: %ld", Dynamic[i].d_tag);
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break;
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}
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if (Dynamic[i].d_tag == DT_NULL)
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break;
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}
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break;
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}
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case PT_INTERP: // Do I have to do anything here?
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{
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debug("PT_INTERP - Offset: %#lx VirtAddr: %#lx FileSiz: %ld MemSiz: %ld Align: %#lx",
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ItrProgramHeader.p_offset, ItrProgramHeader.p_vaddr,
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ItrProgramHeader.p_filesz, ItrProgramHeader.p_memsz, ItrProgramHeader.p_align);
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char *Interpreter = (char *)KernelAllocator.RequestPages(TO_PAGES(ItrProgramHeader.p_filesz));
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memcpy(Interpreter, (uint8_t *)BaseImage + ItrProgramHeader.p_offset, ItrProgramHeader.p_filesz);
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fixme("Interpreter: %s", Interpreter);
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KernelAllocator.FreePages(Interpreter, TO_PAGES(ItrProgramHeader.p_filesz));
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break;
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}
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/* ... */
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case PT_PHDR:
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{
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debug("PT_PHDR - Offset: %#lx VirtAddr: %#lx FileSiz: %ld MemSiz: %ld Align: %#lx",
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ItrProgramHeader.p_offset, ItrProgramHeader.p_vaddr,
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ItrProgramHeader.p_filesz, ItrProgramHeader.p_memsz, ItrProgramHeader.p_align);
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break;
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}
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default:
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{
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warn("Unknown or unsupported program header type: %d", ItrProgramHeader.p_type);
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