You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
430 lines
8.8 KiB
430 lines
8.8 KiB
pushcontext listing
|
|
.nolist
|
|
;
|
|
; (C) Copyright Microsoft Corporation 1992, 1995
|
|
|
|
; This file is used to create the same sets of prologue and epilogue
|
|
; sequences which the Microsoft C 6.00 compiler will produce. This
|
|
; file would be used for writing windows programs and to provide
|
|
; such features as stack checking in the assembler portions of
|
|
; a C based project.
|
|
|
|
|
|
; The following global variables will affect the prolog/epilog
|
|
; sequences produced
|
|
;
|
|
; PROFILE - If 1 then __penter calls will be inserted in all prologs
|
|
; ?WP_DEBUG - If 1 then prolog/epilog sequences will be forced
|
|
; ?WP_CHECKSTACK - If 1 then a check stack will be forced on all
|
|
; procedures
|
|
; ?WP_INCBP - If 1 then the inc bp sequence will be generated on
|
|
; all far procedures
|
|
; ?WP_LOADDS - If 1 then the load ds sequence will be generated on
|
|
; all far procedures
|
|
;
|
|
ifndef ?WP_DEBUG
|
|
?WP_DEBUG = 0
|
|
endif
|
|
ifndef ?WP_CHECKSTACK
|
|
?WP_CHECKSTACK = 0
|
|
endif
|
|
ifndef ?WP_INCBP
|
|
?WP_INCBP = 0
|
|
endif
|
|
ifndef ?WP_LOADDS
|
|
?WP_LOADDS = 0
|
|
endif
|
|
ifndef PROFILE
|
|
PROFILE = 0
|
|
endif
|
|
ifndef ?WP_REGSAVE
|
|
?WP_REGSAVE = 0
|
|
endif
|
|
|
|
;
|
|
; Complain if we are in a segment as this will affect how the
|
|
; externdefs are done and therefore the fixups and code
|
|
; created on the checkstack calls
|
|
;
|
|
% ifnb <@CurSeg>
|
|
echo Include should not be contained in a segment
|
|
endif
|
|
|
|
externdef C _aNchkstk:near ; Extern the symbols
|
|
externdef C _aFchkstk:far ; for later reference
|
|
externdef C _penter:near
|
|
|
|
;
|
|
; This macro will produce the same output as will the
|
|
; C6 compiler for the given switches.
|
|
;
|
|
; The following may be placed in the MacroArgs field of the
|
|
; proc defintion:
|
|
;
|
|
; CHECKSTACK
|
|
; NOCHECKSTACK
|
|
; LOADDS
|
|
; NOLOADDS
|
|
; FORCEFRAME
|
|
; INCBP
|
|
; NOINCBP
|
|
; PROFILE
|
|
|
|
option prologue:cPrologue
|
|
|
|
cPrologue macro szProcName, flags, cbParams, cbLocals, rgRegs, rgUserParams
|
|
LOCAL ?doPrologue
|
|
LOCAL ?loadds
|
|
LOCAL ?checkstack
|
|
LOCAL ?incbp
|
|
LOCAL ?cbLocals
|
|
LOCAL ?doProfile
|
|
LOCAL ?doRegSave
|
|
; pushcontext listing
|
|
; .nolistmacro
|
|
; .listmacroall
|
|
|
|
?doPrologue = 0
|
|
?loadds = 0
|
|
?checkstack = 0
|
|
?incbp = 0
|
|
?cbLocals = cbLocals
|
|
?doProfile = 0
|
|
?doRegSave = 0
|
|
|
|
;; Set the defaults based on the global values specified
|
|
;;
|
|
if ?WP_DEBUG NE 0 ;; Force frames by default
|
|
?doPrologue = 1
|
|
endif
|
|
|
|
if ?WP_CHECKSTACK NE 0 ;; Force checkstack by default
|
|
?checkstack = 1
|
|
endif
|
|
|
|
if ?WP_INCBP NE 0 ;; Force incbp by default if far
|
|
if flags AND 020h
|
|
?incbp = 1
|
|
endif
|
|
endif
|
|
|
|
if ?WP_LOADDS NE 0 ;; Force loadds by default if far
|
|
if flags AND 020h
|
|
?loadds = 1
|
|
endif
|
|
endif
|
|
|
|
if PROFILE NE 0 ;; profiling wanted
|
|
?doProfile = 1 ;; turn on profiling
|
|
endif
|
|
|
|
if ?WP_REGSAVE NE 0
|
|
?doRegSave = 1
|
|
endif
|
|
|
|
;;
|
|
;; Get all of the user parameters parsed
|
|
;;
|
|
|
|
ifnb <rgUserParams> ;; Parse user params if exsisting
|
|
for p,<rgUserParams> ;; For every user param
|
|
|
|
ifidni <p>, <CHECKSTACK> ;; Is it checkstack?
|
|
?checkstack = 1 ;; Yes -- do checkstack
|
|
endif
|
|
|
|
ifidni <p>, <NOCHECKSTACK> ;; Don't do checkstack?
|
|
?checkstack = 0 ;; Yes -- clear checkstack
|
|
endif
|
|
|
|
ifidni <p>, <LOADDS> ;; Is it LoadDS
|
|
?loadds = 1 ;; Yes -- do loadds sequence
|
|
endif
|
|
|
|
ifidni <p>, <NOLOADDS> ;; Don't do LoadDS?
|
|
?loadds = 0 ;; Yes -- clear loadds flag
|
|
endif
|
|
|
|
ifidni <p>, <INCBP> ;; Is it IncBP
|
|
if flags AND 020h ;; and far?
|
|
?incbp = 1 ;; Yes -- do IncBP sequence
|
|
endif
|
|
endif
|
|
|
|
ifidni <p>, <NOINCBP> ;; Is it NoIncBP
|
|
?incbp = 0 ;; Yes -- Clear the incbp flag
|
|
endif
|
|
|
|
ifidni <p>, <FORCEFRAME> ;; Is it ForceFrame?
|
|
?doPrologue = 1 ;; Yes -- force out a frame
|
|
endif
|
|
|
|
ifidni <p>, <PROFILE>
|
|
?doProfile = 1
|
|
endif
|
|
|
|
ifidni <p>, <NOPROFILE>
|
|
?doProfile = 0
|
|
endif
|
|
|
|
ifidni <p>, <REGSAVE>
|
|
?doRegSave = 1
|
|
endif
|
|
|
|
ifidni <p>, <NOREGSAVE>
|
|
?doRegSave = 0
|
|
endif
|
|
|
|
endm ;; End of user parameter parsing loop
|
|
endif
|
|
|
|
;; Turn off options that don't make sense in USE32 segment
|
|
|
|
if @WordSize eq 4
|
|
?checkstack = 0
|
|
?loadds = 0
|
|
?incbp = 0
|
|
endif
|
|
|
|
;; Frames are generated iff
|
|
;; 1. cbLocals + cbParams != 0
|
|
;; 2. FORCEFRAME is set
|
|
;; 3. INCBP is set and proc is far
|
|
;; 4. LOADDS is set
|
|
;;
|
|
;; Force a prolog?
|
|
|
|
?doPrologue = ?doPrologue OR ?incbp OR ?loadds OR ?checkstack OR (?cbLocals NE 0) OR (cbParams NE 0)
|
|
|
|
if ?doProfile EQ 1 ;; generate profiling call
|
|
if ?doRegSave EQ 1
|
|
pushad
|
|
endif
|
|
call _penter
|
|
if ?doRegSave EQ 1
|
|
popad
|
|
endif
|
|
endif
|
|
|
|
if ?doPrologue EQ 0 ;; No prolog needed -- so get out of here
|
|
; popcontext listing
|
|
exitm<0>
|
|
endif
|
|
|
|
if ?loadds EQ 1 ;; Create the loadds code -- force in
|
|
push ds ;; Put DS into AX -- we will place
|
|
pop ax ;; back in DS later. This sequence
|
|
nop ;; is altered by the OS if needed
|
|
endif
|
|
|
|
if ?incbp EQ 1 ;; Mark as a far procedure for stack
|
|
inc bp ;; walking
|
|
endif
|
|
|
|
if @WordSize eq 4
|
|
push ebp
|
|
mov ebp, esp
|
|
else
|
|
push bp ;; Create the frame
|
|
mov bp,sp
|
|
endif
|
|
|
|
if ?loadds EQ 1 ;; Load up DS with the value in AX
|
|
push ds ;;
|
|
mov ds,ax ;;
|
|
?cbLocals = ?cbLocals + 2
|
|
endif
|
|
|
|
if ?checkstack EQ 1 ;; Now allocate space for locals
|
|
mov ax,cbLocals ;; # of bytes of locals (unadjusted)
|
|
% ifidni <@CurSeg>, <_TEXT>
|
|
call _aNchkstk ;; Call run time routine to allocate
|
|
else
|
|
call _aFchkstk
|
|
endif
|
|
else ; ?checkstack NE 1
|
|
if cbLocals NE 0
|
|
if @WordSize eq 4
|
|
sub esp, cbLocals
|
|
else
|
|
sub sp,cbLocals ;; make space on the stack for locals
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
ifnb rgRegs ;; There are registers to be saved. do so
|
|
for r,rgRegs
|
|
push r
|
|
endm
|
|
endif
|
|
; popcontext listing
|
|
exitm <?cbLocals>
|
|
|
|
endm
|
|
|
|
|
|
|
|
;
|
|
; This macro will produce the same output as will the
|
|
; C6 compiler for the given switches.
|
|
;
|
|
; The following may be placed in the MacroArgs field of the
|
|
; proc defintion:
|
|
;
|
|
; CHECKSTACK
|
|
; NOCHECKSTACK
|
|
; LOADDS
|
|
; NOLOADDS
|
|
; FORCEFRAME
|
|
; INCBP
|
|
; NOINCBP
|
|
|
|
option epilogue:cEpilogue
|
|
|
|
cEpilogue macro szProcName, flags, cbParams, cbLocals, rgRegs, rgUserParams
|
|
LOCAL ?doPrologue
|
|
LOCAL ?loadds
|
|
LOCAL ?checkstack
|
|
LOCAL ?incbp
|
|
; pushcontext listing
|
|
; .nolistmacro
|
|
; .listmacroall
|
|
|
|
?doPrologue = 0
|
|
?loadds = 0
|
|
?checkstack = 0
|
|
?incbp = 0
|
|
|
|
;; Turn off options that don't make sense in USE32 segment
|
|
|
|
if @WordSize eq 4
|
|
?checkstack = 0
|
|
?loadds = 0
|
|
?incbp = 0
|
|
endif
|
|
|
|
;; Set the defaults based on the global values specified
|
|
;;
|
|
if ?WP_DEBUG NE 0 ;; Force frames by default
|
|
?doPrologue = 1
|
|
endif
|
|
|
|
if ?WP_CHECKSTACK NE 0 ;; Force checkstack by default
|
|
?checkstack = 1
|
|
endif
|
|
|
|
if ?WP_INCBP NE 0 ;; Force incbp by default
|
|
if flags AND 020h
|
|
?incbp = 1
|
|
endif
|
|
endif
|
|
|
|
if ?WP_LOADDS NE 0 ;; Force loadds by default
|
|
if flags AND 020h
|
|
?loadds = 1
|
|
endif
|
|
endif
|
|
|
|
;;
|
|
;; Get all of the user parameters parsed
|
|
;;
|
|
|
|
ifnb <rgUserParams> ;; Parse user params if exsisting
|
|
for p,<rgUserParams> ;; For every user param
|
|
|
|
ifidni <p>, <CHECKSTACK> ;; Is it checkstack?
|
|
?checkstack = 1 ;; Yes -- do checkstack
|
|
endif
|
|
|
|
ifidni <p>, <NOCHECKSTACK> ;; Don't do checkstack?
|
|
?checkstack = 0 ;; Yes -- clear checkstack
|
|
endif
|
|
|
|
ifidni <p>, <LOADDS> ;; Is it LoadDS
|
|
?loadds = 1 ;; Yes -- do loadds sequence
|
|
endif
|
|
|
|
ifidni <p>, <NOLOADDS> ;; Don't do LoadDS?
|
|
?loadds = 0 ;; Yes -- clear loadds flag
|
|
endif
|
|
|
|
ifidni <p>, <INCBP> ;; Is it IncBP
|
|
if flags AND 020h
|
|
?incbp = 1 ;; Yes -- do IncBP sequence
|
|
endif
|
|
endif
|
|
|
|
ifidni <p>, <NOINCBP> ;; Is it NoIncBP
|
|
?incbp = 0 ;; Yes -- Clear the incbp flag
|
|
endif
|
|
|
|
ifidni <p>, <FORCEFRAME> ;; Is it ForceFrame?
|
|
?doPrologue = 1 ;; Yes -- force out a frame
|
|
endif
|
|
|
|
endm ;; End of user parameter parsing loop
|
|
endif
|
|
|
|
;; Turn off options that don't make sense in USE32 segment
|
|
|
|
if @WordSize eq 4
|
|
?checkstack = 0
|
|
?loadds = 0
|
|
?incbp = 0
|
|
endif
|
|
|
|
;; Frames are generated iff
|
|
;; 1. cbLocals + cbParams != 0
|
|
;; 2. FORCEFRAME is set
|
|
;; 3. INCBP is set and proc is far
|
|
;; 4. LOADDS is set
|
|
;;
|
|
;; Force a prolog?
|
|
|
|
?doPrologue = ?doPrologue OR ?incbp OR ?loadds OR ?checkstack OR (cbLocals NE 0) OR (cbParams NE 0)
|
|
|
|
if ?doPrologue EQ 0 ;; No epilog needed -- so get out of here
|
|
ret
|
|
exitm
|
|
endif
|
|
|
|
ifnb rgRegs ;; Pop off the registers -- they are in
|
|
for r,rgRegs ;; inverse order from the prologue call
|
|
pop r
|
|
endm
|
|
endif
|
|
|
|
if ?loadds ;;
|
|
dec bp
|
|
dec bp
|
|
mov sp,bp
|
|
pop ds
|
|
pop bp
|
|
else
|
|
|
|
if @WordSize eq 4
|
|
mov esp, ebp
|
|
pop ebp
|
|
else
|
|
mov sp,bp
|
|
pop bp
|
|
endif
|
|
endif
|
|
|
|
if ?incbp ;; Remove the increment of BP if necessary
|
|
dec bp
|
|
endif
|
|
|
|
if flags AND 010h ;; Caller pops stack arguments
|
|
ret
|
|
else ;; Callee pops args
|
|
if cbParams NE 0 ;; Put out the correct form of return
|
|
ret cbParams
|
|
else
|
|
ret
|
|
endif
|
|
endif
|
|
endm
|
|
|
|
popcontext listing
|
|
.listmacro
|