Microsoft KB Archive/85743

= FIX: Error L1057 Generated When Assembling with /Zi =

Article ID: 85743

Article Last Modified on 10/30/2003

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APPLIES TO


 * Microsoft Macro Assembler 6.0 Standard Edition
 * Microsoft Macro Assembler 6.0a
 * Microsoft Macro Assembler 6.0b

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This article was previously published under Q85743



SYMPTOMS
When using Microsoft Macro Assembler version 6.0, 6.0a, or 6.0b to assemble a program that has a large structure, specifying CodeView information with the /Zi switch on the assembler and the /CO switch on the linker may cause the following linker error:

fatal error L1057: data record too large



CAUSE
MASM generates an incorrect LEDATA record when the source code declares large data structures.



RESOLUTION
Reducing the length of one of the longer field names in the structure will eliminate the error.



STATUS
Microsoft has confirmed this to be a problem in MASM versions 6.0, 6.0a, and 6.0b. This problem was corrected in MASM for MS-DOS version 6.1.



MORE INFORMATION
The following sample code demonstrates the problem. Reducing the length of one of the longer field names eliminates the error.

Sample Code
; Assemble options needed: /Zi

.MODEL small

BIGstruc STRUC

longvarname1         DB 20 DUP (?) longvarname2         DB 20 DUP (?) longvarname3         DB 20 DUP (?) longvarname4         DB 20 DUP (?) longvarname5         DB 20 DUP (?) longvarname6         DB 20 DUP (?) longvarname7         DB 20 DUP (?) longvarname8         DB 20 DUP (?) longvarname9         DB 20 DUP (?)

longervarname10      DB 0 longervarname11      DB 0 longervarname12      DB 0 longervarname13      DB 0 longervarname14      DB 0 longervarname15      DB 0 longervarname16      DB 0 longervarname17      DB 0 longervarname18      DB 0 longervarname19      DB 0 longervarname20      DB 0 longervarname21      DB 0 longervarname22      DB 0 longervarname23      DB 0 longervarname24      DB 0 longervarname25      DB 0 longervarname26      DB 0 longervarname27      DB 0 longervarname28      DB 0 longervarname29      DB 0

evenlongervarname30  DB 0 evenlongervarname31  DB 0 evenlongervarname32  DB 0 evenlongervarname33  DB 0 evenlongervarname34  DB 0 evenlongervarname35  DB 0 evenlongervarname36  DB 0 evenlongervarname37  DB 0 evenlongervarname38  DB 0 evenlongervarname39  DB 0 evenlongervarname40  DB 0 evenlongervarname41  DB 0 evenlongervarname42  DB 0 evenlongervarname43  DB 0 evenlongervarname44  DB 0 evenlongervarname45  DB 0 evenlongervarname46  DB 0 evenlongervarname47  DB 0 evenlongervarname48  DB 0 evenlongervarname49  DB 0

theverylongestvarname DB 0

BIGstruc ENDS

.STACK 4096

.DATA BIGvar BIGstruc <>

.CODE start: mov ax, 4C00h int 21h END start

Additional query words: 6.00 6.00a 6.00b buglist6.00 buglist6.00a buglist6.00b fixlist6.10

Keywords: kbfix KB85743

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