; /* ; Copyright (c) 2014-2015, Alexey Frunze ; All rights reserved. ; ; Redistribution and use in source and binary forms, with or without ; modification, are permitted provided that the following conditions are met: ; ; 1. Redistributions of source code must retain the above copyright notice, this ; list of conditions and the following disclaimer. ; 2. Redistributions in binary form must reproduce the above copyright notice, ; this list of conditions and the following disclaimer in the documentation ; and/or other materials provided with the distribution. ; ; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED ; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE ; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ; ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; ; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ; ; The views and conclusions contained in the software and documentation are those ; of the authors and should not be interpreted as representing official policies, ; either expressed or implied, of the FreeBSD Project. ; */ ; ; /*****************************************************************************/ ; /* */ ; /* minimal stdlibc */ ; /* */ ; /*Just enough code for Smaller C to compile itself into a 32-bit Windows EXE.*/ ; /* */ ; /*****************************************************************************/ ; ; Compile: ; smlrc -nobss -seg32 -no-externs -D _WIN32 lb.c lb.asm ; smlrc -nobss -seg32 -no-externs -label 1001 smlrc.c smlrc.asm ; nasm -f bin mzstub.asm -o mzstub.bin ; nasm -f bin smlrcw.asm -o smlrcw.exe ; ImageBase equ 0x00400000 FileAlignment equ 512 SectionAlignment equ 4096 _text_size_ equ (_text_end_ - _text_start_) _data_size_ equ (_data_end_ - _data_start_) ImageSize equ (HeadersSize + GapSize + _text_size_ + _data_size_) bits 32 org ImageBase section .text ; 16-bit DOS MZ .EXE stub incbin "mzstub.bin" ; PE header and optional header db "PE", 0, 0 ; PE signature dw 0x014C ; Machine (Intel 80386) dw NumberOfSections ; NumberOfSections dd 0x52C3CB00 ; TimeDateStamp dd 0 ; PointerToSymbolTable dd 0 ; NumberOfSymbols dw OptionalHeaderSize ; SizeOfOptionalHeader dw 0x30F ; Characteristics (no symbol/debug info, fixed/no relocations, executable, 32-bit) OptionalHeader: dw 0x10B ; Magic (PE32) db 8 ; MajorLinkerVersion db 0 ; MinorLinkerVersion dd _text_size_ ; SizeOfCode dd _data_size_ ; SizeOfInitializedData dd 0 ; SizeOfUninitializedData dd Entry - ImageBase ; AddressOfEntryPoint dd _text_start_ ; BaseOfCode dd _data_start_ ; BaseOfData dd ImageBase ; ImageBase dd SectionAlignment ; SectionAlignment dd FileAlignment ; FileAlignment dw 4 ; MajorOperatingSystemVersion dw 0 ; MinorOperatingSystemVersion dw 0 ; MajorImageVersion dw 0 ; MinorImageVersion dw 4 ; MajorSubsystemVersion dw 0 ; MinorSubsystemVersion dd 0 ; Win32VersionValue dd ImageSize ; SizeOfImage dd HeadersSize ; SizeOfHeaders dd 0 ; CheckSum dw 3 ; Subsystem (Windows CUI) dw 0x400 ; DllCharacteristics dd 0x100000 ; SizeOfStackReserve dd 0x10000 ; SizeOfStackCommit dd 0x100000 ; SizeOfHeapReserve dd 0x1000 ; SizeOfHeapCommit dd 0 ; LoaderFlags dd 16 ; NumberOfRvaAndSizes ; Data directories dd 0, 0 ; Export Table dd ImportsStart - ImageBase, 0 ; Import Table dd 0, 0 ; Resource Table dd 0, 0 ; Exception Table dd 0, 0 ; Security Table dd 0, 0 ; Relocation Table dd 0, 0 ; Debug Info dd 0, 0 ; Description dd 0, 0 ; Machine-specific dd 0, 0 ; TLS dd 0, 0 ; Load Configuration dd 0, 0 ; Bound Import Table dd 0, 0 ; Import Address Table dd 0, 0 ; Delay Import Table dd 0, 0 ; COM+ dd 0, 0 ; Reserved OptionalHeaderSize equ $ - OptionalHeader ; PE section descriptors SectionDescriptors: db ".text", 0, 0, 0 ; Name dd _text_size_ ; VirtualSize dd _text_start_ - ImageBase ; VirtualAddress dd _text_size_ ; SizeOfRawData dd _text_start_ - ImageBase ; PointerToRawData dd 0 ; PointerToRelocations dd 0 ; PointerToLinenumbers dw 0 ; NumberOfRelocations dw 0 ; NumberOfLinenumbers dd 0x60000020 ; Characteristics (code, executable, readable) db ".data", 0, 0, 0 ; Name dd _data_size_ ; VirtualSize dd _data_start_ - ImageBase ; VirtualAddress dd _data_size_ ; SizeOfRawData dd _data_start_ - ImageBase ; PointerToRawData dd 0 ; PointerToRelocations dd 0 ; PointerToLinenumbers dw 0 ; NumberOfRelocations dw 0 ; NumberOfLinenumbers dd 0xc0000040 ; Characteristics (data, readable, writable) NumberOfSections equ ($ - SectionDescriptors) / 40 align FileAlignment, db 0 HeadersSize equ $ - $$ GapSize equ _text_start_ - $ align SectionAlignment, db 0 _text_start_: Entry: jmp ___start__ ; __start__() will set up argc and argv for main() and call exit(main(argc, argv)) section .data align SectionAlignment, db 0 _data_start_: ImportsStart: dd Kernel32Hints - ImageBase, 0, 0, Kernel32name - ImageBase, Kernel32IatStart - ImageBase dd 0, 0, 0, 0, 0 Kernel32Hints: dd hint_ExitProcess - ImageBase dd hint_GetCommandLineA - ImageBase dd hint_GetStdHandle - ImageBase dd hint_CreateFileA - ImageBase dd hint_CloseHandle - ImageBase dd hint_ReadFile - ImageBase dd hint_WriteFile - ImageBase dd 0 Kernel32IatStart: __imp__ExitProcess dd hint_ExitProcess - ImageBase __imp__GetCommandLineA dd hint_GetCommandLineA - ImageBase __imp__GetStdHandle dd hint_GetStdHandle - ImageBase __imp__CreateFileA dd hint_CreateFileA - ImageBase __imp__CloseHandle dd hint_CloseHandle - ImageBase __imp__ReadFile dd hint_ReadFile - ImageBase __imp__WriteFile dd hint_WriteFile - ImageBase dd 0 hint_ExitProcess db 0, 0, "ExitProcess", 0 hint_GetCommandLineA db 0, 0, "GetCommandLineA", 0 hint_GetStdHandle db 0, 0, "GetStdHandle", 0 hint_CreateFileA db 0, 0, "CreateFileA", 0 hint_CloseHandle db 0, 0, "CloseHandle", 0 hint_ReadFile db 0, 0, "ReadFile", 0 hint_WriteFile db 0, 0, "WriteFile", 0 Kernel32name db "kernel32.dll", 0 align 4, db 0 ;;;;;;;;;;;;;;;; %include "lb.asm" %include "smlrc.asm" ;;;;;;;;;;;;;;;; section .text align SectionAlignment, db 0 _text_end_: section .data align SectionAlignment, db 0 _data_end_: ; file end