[Nasm-users] pb with preprocessor Loop

[Gregory 'G. C. <ga...@cl...>]

Hello,

I've got the following code :


SECTION .data
interrupt:

SECTION .text

irq_entries_start:

%assign irq_nb 0
%rep    4

	ALIGN 4

	mov  eax , esp
	mov  edx , irq_nb

	SECTION .data
	dd $
	SECTION .text

%assign irq_nb irq_nb+1 
%endrep



I compile it with : nasm test1.s -o test1.o -f elf

Then, if I dump it with : objdump --disassemble-all test1.o |less

I get this :

test1.o:     file format elf32-i386

Disassembly of section .data:

00000000 <interrupt>:
   0:   00 00                   add    %al,(%eax)
   2:   00 00                   add    %al,(%eax)
   4:   04 00                   add    $0x0,%al
   6:   00 00                   add    %al,(%eax)
   8:   08 00                   or     %al,(%eax)
   a:   00 00                   add    %al,(%eax)
   c:   0c 00                   or     $0x0,%al
        ...
Disassembly of section .text:

00000000 <irq_entries_start>:
   0:   89 e0                   mov    %esp,%eax
   2:   ba 00 00 00 00          mov    $0x0,%edx
   7:   90                      nop    
   8:   89 e0                   mov    %esp,%eax
   a:   ba 01 00 00 00          mov    $0x1,%edx
   f:   90                      nop    
  10:   89 e0                   mov    %esp,%eax
  12:   ba 02 00 00 00          mov    $0x2,%edx
  17:   90                      nop    
  18:   89 e0                   mov    %esp,%eax
  1a:   ba 03 00 00 00          mov    $0x3,%edx


What I would like to do is fill 'interrupt' with current code address (.text section), not the current data address.

I tried a few things (macros, local labels) but can't find a way to get it. Can you please help me ?

Thanks.

Greg.


PS: the following code works with the GNU assembler :

.data
interrupt:
.text

vector=0
irq_entries_start:
.rept 4
1:      pushl $(vector)
        nop
        nop

.data
        .long 1b
.text
vector=vector+1
.endr


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