4 replies

Error in Calculating Section Size with .set Directive in x86_64 Assembly

I am learning to write a bootloader. In the process of converting hexadecimal values to strings in

x86 64

x86 64

assembly on a linux system with an Intel Core i7 processor ,
when I try to assemble this code using

as

as

, I encounter the following error:

$ as -o print_bios.o print_bios.S 
print_bios.S: Assembler messages:
print_bios.S: Error: invalid operands (.data and *UND* sections) for `-' when setting `hex_size'

$ as -o print_bios.o print_bios.S 
print_bios.S: Assembler messages:
print_bios.S: Error: invalid operands (.data and *UND* sections) for `-' when setting `hex_size'

I'm not sure why this error is occurring.
From my source code the

.set

.set

directive is intended to calculate the size of the

.hex_str

.hex_str

section. Could you please help me understand the issue and provide a solution?

Solution

Thanks , been able to fix this :salute:

Jump to solution

DIIS

DevHeads IoT Integration Server•2y ago•

4 replies

Marvee Amasi

Error in Calculating Section Size with .set Directive in x86_64 Assembly

I am learning to write a bootloader. In the process of converting hexadecimal values to strings in

x86 64

x86 64

assembly on a linux system with an Intel Core i7 processor ,
when I try to assemble this code using

as

as

, I encounter the following error:

$ as -o print_bios.o print_bios.S 
print_bios.S: Assembler messages:
print_bios.S: Error: invalid operands (.data and *UND* sections) for `-' when setting `hex_size'

$ as -o print_bios.o print_bios.S 
print_bios.S: Assembler messages:
print_bios.S: Error: invalid operands (.data and *UND* sections) for `-' when setting `hex_size'

I'm not sure why this error is occurring.
From my source code the

.set

.set

directive is intended to calculate the size of the

.hex_str

.hex_str

section. Could you please help me understand the issue and provide a solution?

Solution

Thanks , been able to fix this :salute:

Jump to solution

Error in Calculating Section Size with .set Directive in x86_64 Assembly

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