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* experimental patch to get the real reserved stack size from the executable

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git-svn-id: trunk@9043 -
This commit is contained in:
florian 2007-11-01 15:26:55 +00:00
parent 7cea844223
commit 4fa9516b58
1 changed files with 72 additions and 7 deletions
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79
rtl/win32/system.pp
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@ -1093,10 +1093,72 @@ begin
GetProcessID := ProcessID;
end;
function CheckInitialStkLen(stklen : SizeUInt) : SizeUInt;assembler;
asm
movl %fs:(4),%eax
subl %fs:(8),%eax
function CheckInitialStkLen(stklen : SizeUInt) : SizeUInt;
type
tdosheader = packed record
e_magic : word;
e_cblp : word;
e_cp : word;
e_crlc : word;
e_cparhdr : word;
e_minalloc : word;
e_maxalloc : word;
e_ss : word;
e_sp : word;
e_csum : word;
e_ip : word;
e_cs : word;
e_lfarlc : word;
e_ovno : word;
e_res : array[0..3] of word;
e_oemid : word;
e_oeminfo : word;
e_res2 : array[0..9] of word;
e_lfanew : longint;
end;
tpeheader = packed record
PEMagic : longint;
Machine : word;
NumberOfSections : word;
TimeDateStamp : longint;
PointerToSymbolTable : longint;
NumberOfSymbols : longint;
SizeOfOptionalHeader : word;
Characteristics : word;
Magic : word;
MajorLinkerVersion : byte;
MinorLinkerVersion : byte;
SizeOfCode : longint;
SizeOfInitializedData : longint;
SizeOfUninitializedData : longint;
AddressOfEntryPoint : longint;
BaseOfCode : longint;
BaseOfData : longint;
ImageBase : longint;
SectionAlignment : longint;
FileAlignment : longint;
MajorOperatingSystemVersion : word;
MinorOperatingSystemVersion : word;
MajorImageVersion : word;
MinorImageVersion : word;
MajorSubsystemVersion : word;
MinorSubsystemVersion : word;
Reserved1 : longint;
SizeOfImage : longint;
SizeOfHeaders : longint;
CheckSum : longint;
Subsystem : word;
DllCharacteristics : word;
SizeOfStackReserve : longint;
SizeOfStackCommit : longint;
SizeOfHeapReserve : longint;
SizeOfHeapCommit : longint;
LoaderFlags : longint;
NumberOfRvaAndSizes : longint;
DataDirectory : array[1..$80] of byte;
end;
begin
result:=tpeheader((pointer(HInstance)+(tdosheader(pointer(HInstance)^).e_lfanew))^).SizeOfStackReserve;
end;
{
@ -1106,9 +1168,6 @@ const
}
begin
{ pass dummy value }
StackLength := CheckInitialStkLen($1000000);
StackBottom := StackTop - StackLength;
{ get some helpful informations }
GetStartupInfo(@startupinfo);
@ -1120,7 +1179,13 @@ begin
hprevinst:=0;
if not IsLibrary then
SysInstance:=getmodulehandle(GetCommandFile);
MainInstance:=HInstance;
{ pass dummy value }
StackLength := CheckInitialStkLen($1000000);
StackBottom := StackTop - StackLength;
cmdshow:=startupinfo.wshowwindow;
{ Setup heap }
InitHeap;