Source code of Windows XP (NT5)
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BREAK <EXEC and EXE file structures>
;;----------------------------------------------------------------------------;; M00x : 4b04 implementation;;----------------------------------------------------------------------------;
;** EXE.INC - Definitions for the EXEC command and EXE files;; The following get used as arguments to the EXEC system call. They indicate; whether or not the program is executed or whether or not a program header; gets created.
EXEC_FUNC_NO_EXECUTE EQU 1 ; no execute bitEXEC_FUNC_OVERLAY EQU 2 ; overlay bit
EXEC0 STRUCEXEC0_ENVIRON dw ? ; seg addr of environmentEXEC0_COM_LINE dd ? ; pointer to asciz command lineEXEC0_5C_FCB dd ? ; default fcb at 5CEXEC0_6C_FCB dd ? ; default fcb at 6CEXEC0 ENDS
EXEC1 STRUCEXEC1_ENVIRON dw ? ; seg addr of environmentEXEC1_COM_LINE dd ? ; pointer to asciz command lineEXEC1_5C_FCB dd ? ; default fcb at 5CEXEC1_6C_FCB dd ? ; default fcb at 6CEXEC1_SP dw ? ; stack pointer of programEXEC1_SS dw ? ; stack seg register of programEXEC1_IP dw ? ; entry point IPEXEC1_CS dw ? ; entry point CSEXEC1 ENDS
EXEC3 STRUCEXEC3_LOAD_ADDR DW ? ; seg address of load pointEXEC3_RELOC_FAC DW ? ; relocation factorEXEC3 ENDS
;** Exit codes (in upper byte) for terminating programs
EXIT_TERMINATE EQU 0EXIT_ABORT EQU 0EXIT_CTRL_C EQU 1EXIT_HARD_ERROR EQU 2EXIT_KEEP_PROCESS EQU 3
;** EXE File Header Description;
EXE_FILE STRUC
EXE_SIGNATURE dw ? ; must contain 4D5A (yay zibo!)EXE_LEN_MOD_512 dw ? ; low 9 bits of lengthEXE_PAGES dw ? ; number of 512b pages in fileEXE_RLE_COUNT dw ? ; count of reloc entriesEXE_PAR_DIR dw ? ; number of paragraphs before imageEXE_MIN_BSS dw ? ; minimum number of para of BSSEXE_MAX_BSS dw ? ; max number of para of BSSEXE_SS dw ? ; stack of imageEXE_SP dw ? ; SP of imageEXE_CHKSUM dw ? ; checksum of file (ignored)EXE_IP dw ? ; IP of entryEXE_CS dw ? ; CS of entryEXE_RLE_TABLE dw ? ; byte offset of reloc tableEXE_IOV dw ? ; overlay number (0 for root)EXE_SYM_TAB dd ? ; offset of symbol table in file
EXE_FILE ENDS
EXE_VALID_SIGNATURE EQU 5A4DhEXE_VALID_OLD_SIGNATURE EQU 4D5Ah
;** EXE file symbol info definitions
SYMBOL_ENTRY STRUCSYM_VALUE dd ?SYM_TYPE dw ?SYM_LEN db ?SYM_NAME db 255 dup (?)SYMBOL_ENTRY ENDS
;; M00x - BEGIN;;** Data structure passed for ExecReady call
ERStruc STRUC ER_Reserved dw ? ; reserved, should be zero ER_Flags dw ? ER_ProgName dd ? ; ptr to ASCIIZ str of prog name ER_PSP dw ? ; PSP of the program ER_StartAddr dd ? ; Start CS:IP of the program ER_ProgSize dd ? ; Program size including PSPERStruc ENDS
;** bit fields in ER_Flags
ER_EXE equ 0001hER_OVERLAY equ 0002h
;; M00x - END;
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