I am running Windows 11 on an x64 machine and trying to run this x64 assembly program I wrote:
section .data
var db 1
section .text
global _start
_start:
inc BYTE [var] ; Increment the variable var by 1
; Exit the program
mov eax, 60 ; System call number for "exit"
xor edi, edi ; Exit status code (0 for success)
syscall
I expected it to increment var by 1, but I get this error:
main.o: in function `_start':
main.asm:(.text+0x3): relocation truncated to fit: R_X86_64_32S against `.data'
I tried to change db to dw, I tried changing BYTE to WORD, and I tried to move var into eax and then use the add instruction, but none of that worked. I am using NASM and ld. Here is how I assembled and attempted to run my program:
nasm -f elf64 main.asm
ld main.o
If I run ld --verbose:
GNU ld (GNU Binutils) 2.37
Supported emulations:
i386pep
i386pe
using internal linker script:
==================================================
/* Default linker script, for normal executables */
/* Copyright (C) 2014-2021 Free Software Foundation, Inc.
Copying and distribution of this script, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. */
OUTPUT_FORMAT(pei-x86-64)
SEARCH_DIR("=/c/temp/gcc/dest/x86_64-w64-mingw32/lib"); SEARCH_DIR("=/c/temp/gcc/dest/lib"); SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib");
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==================================================
When I did ld main.o, I got that error above. Any help would be appreciated, thanks! P.S I already looked at similar problems on this site, and tried the solutions, but they didn't solve my issue.
