[M3devel] more assembly symbols please?

Jay jayk123 at hotmail.com
Sun Jan 20 05:56:00 CET 2008


MinGWin (GNU ld)
I might try putting together a totally Cygwin system to see if that works, to try to understand where the problem is.
This really shouldn't be so hard from the information I have though.. :(
Fishing with Cygwin should not be needed..
I can dump the ModuleInfo from C and I can see where the bad one is, I just need to trace through its creation to find where it goes bad...
I assume it is NOT related to the fact that assembly/object file names get truncated to 8 characters, RTHeapInfo.m3 => RTHeapIn.m3 but so far that's all I see to "what is special about RTHeapInfo?".

 - Jay

> CC: m3devel at elegosoft.com
> From: hosking at cs.purdue.edu
> Subject: Re: [M3devel] more assembly symbols please?
> Date: Sat, 19 Jan 2008 18:46:59 -0500
> To: jayk123 at hotmail.com
> 
> Which linker are you using?  Could that be a factor?
> 
> On Jan 19, 2008, at 1:49 PM, Jay wrote:
> 
> > Thanks. m3cg -y for full tracing also dumps relevant stuff at the end.
> > I'll try m3cgcat too. I should just be able to build/run an NT386  
> > version.
> > My C tracing does "prove" the problem is RTHeapInfo, but I still  
> > haven't figured out why.
> > I've started skimming the code that builds that data...still a ways  
> > off from solving this I think.
> > I have some suspicion the linker is moving things around that were  
> > otherwise correct, but I am far from proving that or fixing it.
> > I'd like to first verify that the "m3front" / m3cg output is correct.
> > The lack of labels in the as actually is a counter point to the  
> > movement theory, hard for linker to get a handle on anything to  
> > move around, it's just one blob.
> >
> >  - Jay
> >
> >
> >
> > > CC: m3devel at elegosoft.com
> > > From: hosking at cs.purdue.edu
> > > Subject: Re: [M3devel] more assembly symbols please?
> > > Date: Sat, 19 Jan 2008 12:33:08 -0500
> > > To: jayk123 at hotmail.com
> > >
> > > Take a look at the .mc intermediate code output if you want to see
> > > that section of the data. There are at least comments. Use m3cgcat -
> > > binary < x.mc > x.mo to view it (You can run m3cgcat on any other  
> > CM3
> > > install).
> > >
> > > On Jan 19, 2008, at 6:02 AM, Jay wrote:
> > >
> > > > Any chance the m3cg output could have, um, some symbols for the
> > > > global data?
> > > > It's kind of a pain to decode..
> > > >
> > > > The module/import info is ok a lot, lots of runtime links ok.
> > > > I think the bad one might be RTHeapInfo but I have to decode the
> > > > very bare of symbols assembly..
> > > > or comments? Like for record fields?
> > > > Still thinking of sticking a call out to C code...Even
> > > > OutputDebugString since RTIO isn't working...
> > > >
> > > > I looked through the m3cg --help, didn't find anything.
> > > >
> > > > Tony?
> > > >
> > > > _MM_RTHeapInfo:
> > > > 0 .long _L_1+224
> > > > 4 .long _MM_RTHeapInfo+52
> > > > 8 .long _MM_RTHeapInfo+308
> > > > 12,16 .space 8
> > > > 20 .long _L_1+152
> > > > 24 .space 4
> > > > 28 .long _L_1+220
> > > > 32 .long _L_1+220
> > > > 36 .long _MM_RTHeapInfo+160
> > > > 40 .space 4
> > > > .long _RTHeapInfo_M3
> > > >
> > > > I get to count out to 160 bytes from here..:
> > > >
> > > > _L_1:
> > > > 0 .byte 48
> > > > 1 .byte 49
> > > > 2 .byte 50
> > > > 3 .byte 51
> > > > 4 .byte 52
> > > > 5 .byte 53
> > > > 6 .byte 54
> > > > 7 .byte 55
> > > > 8 .byte 56
> > > > 9 .byte 57
> > > > a .byte 97
> > > > b .byte 98
> > > > c .byte 99
> > > > d .byte 100
> > > > e .byte 101
> > > > f .byte 102
> > > > 10 .long _RTHooks__TextLitInfo
> > > > 14 .long _RTHooks__TextLitGetChar
> > > > 18 .long _RTHooks__TextLitGetWideChar
> > > > 1c .long _RTHooks__TextLitGetChars
> > > > 20 .long _RTHooks__TextLitGetWideChars
> > > > 24 .long 2
> > > > 28 .long _L_1+16
> > > > 2c .long 7
> > > > 30 .ascii "shownew"
> > > > 37 .space 1
> > > > 38 .long 2
> > > > 3c .long _L_1+16
> > > > 40 .long 6
> > > > 44 .ascii "update"
> > > > 4a .space 2
> > > > 4c .ascii "RTHeapInfo_M3"
> > > > 50 .space 1
> > > > .ascii "Init"
> > > > .space 1
> > > >
> > > > I'll try the C code..
> > > >
> > > > - Jay
> > > >
> > > >
> > > >
> > > >
> > > >
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> 

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