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   comp.lang.asm.x86      Ahh, the lost art of x86 assembly      4,675 messages   

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   Message 4,641 of 4,675   
   Borax Man to Tavis Ormandy   
   Re: Debugger problems   
   02 Dec 23 09:17:32   
   
   From: rotflol2@nospicedham.hotmail.com   
      
   On 2023-12-02, Tavis Ormandy  wrote:   
   > On 2023-11-30, Martijn Bos wrote:   
   >> Does anyone have any pointers/tips/trics on how to resolve this issue.   
   >>   
   >> (I know myself...I probably oversee the obvious...do not hesitate to point   
   that out)   
   >   
   > I would just use the disassembler, for example `x/10i _start` instead of   
   > `list _start`!   
   >   
   > I don't think nasm will generate line info automatically (just names),   
   > so you would set breakpoints on symbols `b _start` or addresses `b   
   > *0x401000)   
   >   
   > However... gas can do it if you prefer this style. Your code is   
   > basically valid gas syntax already. Just add `.intel_syntax noprefix`   
   > and add a `.` before directives, e.g. .section, .global, etc, and use #   
   > for comments instead of ;.   
   >   
   > Then you can use `as -g foo.asm -o foo.o` instead.   
   >   
   > Now `b foo.asm:123` should work.   
   >   
   > Nasm and gas are both great assemblers, it doesn't make much difference   
   > which one you choose while you're getting started.   
   >   
   > Tavis.   
   >   
      
   NASM can generate debugging information which I believe will generate   
   line info.  Pass '-F dwarf' option to nasm if under Linux, and you should see   
   each   
   line of source in the debugger.   
      
   ie.   
   nasm -f elf32 -F dwarf hello.asm   
      
      
   P.S., I assume you're the same Tavis who is known for your FVWM   
   config?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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