即CFA定义为执行call xxx时SP(stack pointer)所指向的地址。 pushl %ebp .cfi_def_cfa_offset 8 .cfi_offset 5, -8 表示执行完pushl %ebp后SP与CFA偏了8字节(4字节return address,4字节ebp) movl %esp, %ebp .cfi_def_cfa_register 5 表示执行完movl %esp, %ebp后cfa_register不再是esp,而是ebp leave ....
问什么是cfi_adjust_cfa_offset和cfi_rel_offset？EN在拒绝服务(DoS)攻击下，攻击者向Web资源注入的请...
如果我将c文件编译到ARM64程序集中,我会得到不同的指令(不仅仅是不同的语法和指令--例如.cfi_def_cfa和.cfi_def_cfa_offset),这取决于我是在linux还是mac上编译。w29, 16 .cfi_offset w29, -16 ldr w8, [sp, #8]; -- End functionLinux
.cfi_def_cfa_offset modifies a rule for computing CFA. Register remains the same, but offset is new. Note that it is the absolute offset that will be added to a defined register to compute CFA address. 7.10.12 .cfi_adjust_cfa_offset offset Same as .cfi_def_cfa_offset but offset is ...
问Gnu汇编程序(GAS)中的CFI指令有什么用途？ENerp软件是企业内部常用软件，erp又被称为企业资源计划，而...
CFA代表call frame address，意思是调用函数的堆栈指针位置的地址。这是获取堆栈上下一个帧的信息所必需的...
.cfi_def_cfa_offset modifies a rule for computing CFA. Register remains the same, but offset is new. Note that it is the absolute offset that will be added to a defined register to compute CFA address. 7.10.12 .cfi_adjust_cfa_offset offset Same as .cfi_def_cfa_offset but offset is ...
testq %rdi, %rdi -- addq $8, %rsp # 这个倒是生成对应了 cfi 指令. .cfi_def_cfa_offset 24 popq %rbx .Ltmp101: -- 而使用 g++ 则没有问题. 当然了, 也不能说是 clang 的问题, 本来嘛, 信号调用里面执行 backtrace() 就是非常模糊的事情, ....
" .section .rodata .LC1: .string "%f\n" .text .globl main .type main, @function main: .LFB0: .cfi_startproc...pushq %rbp .cfi_def_cfa_offset 16 .cfi_offset 6, -16 movq %rsp, %rbp .cfi_def_cfa_register 6 subq...movsd -8(%rbp), %xmm0 movl $.LC1, %edi movl $1, %e...
问GAS：.cfi_def_cfa_offset的解释ENThere are N gas stations along a circular route, where the ...