[M3devel] link info still bad.

[Jay]

clarification -- RTLinker still crashes. I put in C code to dump, since it crashes before its own printing would work.A bunch works and then:
 
Module 00682020 ..\src\runtime\common\RTHeapInfo.m3 Imports 006820C0{Import 00000000, Binder 00000000, Next 00603FD0}
 
and then the dumper AV's because the next pointer is bad.
 
0:000> dc 00603FD000603fd0  8be58955 c0b80845 c900682a 909090c3  U...E...*h......00603fe0  8be58955 80b80845 c900682b e58955c3  U...E...+h...U..00603ff0  ec835657 08458b20 8904c083 2be8a1c2  WV.. .E........+00604000  f4050068 8b000000 dc7d8d00 b8fcc689  h.........}.....00604010  00000007 a5f3c189 758dd789 07b8fcdc  ...........u....00604020  89000000 83a5f3c1 5f5e20c4 9090c3c9  ......... ^_....00604030  8be58955 60b80845 c900682c 909090c3  U...E..`,h......00604040  8be58955 00b80845 c900682d 909090c3  U...E...-h......
 
anything over 0x80000000, or depending on configuration, 0xc0000000, is an invalid user mode pointer on 32bit NT.
The address space is usually split 2gig/2gig, the upper 2gig is the kernel memory, the same mappings system side.
There is an option to make it 3gig/1gig.
 
If anyone has any hints, please tell me, thanks.
 
If anyone else can build this stuff...?
I can commit the printing to be only on this platform...
 
The assembly code output by cm3cg is much harder to read than it should be, even for assembly language.. :(
Attached.
 
 - Jay


From: jayk123 at hotmail.comTo: m3devel at elegosoft.comSubject: RE: [M3devel] more assembly symbols please?Date: Sat, 19 Jan 2008 11:32:21 +0000


duh, finally, got it. parameters being passed in the wrong order -- left to right instead of right to left.should have read the assembly of some multi parameter function calls... PROCEDURE RTLinker_PutInt (i: INTEGER;  width := 0) =  VAR    num : ARRAY [0..30] OF CHAR;    len := FromInt (ADR (num[0]), i, 10);  BEGIN    FOR i := 1 TO width - len DO PutChar (' ') END;    PutChars (ADR (num[0]), len);  END RTLinker_PutInt;Dump of assembler code for function RTLinker__RTLinker_PutInt:0x005de25f <RTLinker__RTLinker_PutInt+0>:       push   %ebp0x005de260 <RTLinker__RTLinker_PutInt+1>:       mov    %esp,%ebp0x005de262 <RTLinker__RTLinker_PutInt+3>:       sub    $0x38,%esp0x005de265 <RTLinker__RTLinker_PutInt+6>:       mov    0x8(%ebp),%edx0x005de268 <RTLinker__RTLinker_PutInt+9>:       sub    $0x4,%esp0x005de26b <RTLinker__RTLinker_PutInt+12>:      lea    0xffffffd9(%ebp),%eax0x005de26e <RTLinker__RTLinker_PutInt+15>:      push   %eax0x005de26f <RTLinker__RTLinker_PutInt+16>:      push   %edx0x005de270 <RTLinker__RTLinker_PutInt+17>:      push   $0xa0x005de272 <RTLinker__RTLinker_PutInt+19>:      call   0x5de345 <RTLinker__FromInt> and I AVed writing to the address 0xA..  - Jay

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