I would like an explanation for the values used with the .cfi_def_cfa_offset directives in assembly generated by GCC. I know vaguely that the .cfi directives are involved in call frames and stack unwi
While going through some C code having inline assembly I came across the .byte (with a Dot at the beginning) directive.
As part of a compiler project I have to write GNU assembler code for x86 to compare floating point values. I have tried to find resources on how to do this online and from what I understand it works l
I am trying to assembly following program: .text .globl _search2 _se开发者_JAVA百科arch2: pushq%rbp movq%rsp, %rbp
I am in the process of trying to compile an old project on my modern machine. I know this old project used an old (2.x) version of GCC/GAS so I need to clean it up so that I can compile it with a curr
I have a scenario in GCC causing me problems. The behaviour I get is not the behaviour I expect. To summarise the situation, I am proposing several new instructions for x86-64 which are implemented in
I have googled enough but could not figure out what the bracket () means. Also, I see some syntax as movl 8(%ebp), %eax
I have some NASM files that generally have the structure: [BITS 64] [ORG 0x0000000000200000] start: ... ret
0x0000000000400553 <main+59>:mov-0x4(%rbp),%eax 0x0000000000400556 <main+62>:cltq 0x0000000000400558 <main+64>:shl$0x3,%rax
For example, how to prepare parameters for this syscall sys_wait4: asmlinkage long sys_wait4(pid_t pid,unsigned int __user *stat_addr, int options, struct rusage __user *ru)
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