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.file "segv.c"
.text
.globl p
.bss
.align 8
.type p, @object
.size p, 8
p:
.zero 8
.section .rodata
.LC0:
.string "Segv handler! p: %p\n"
.text
.globl segv_handler
.type segv_handler, @function
segv_handler:
.LFB6:
.cfi_startproc
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset 6, -16
movq %rsp, %rbp
.cfi_def_cfa_register 6
addq $-128, %rsp
movl %edi, -116(%rbp)
movq %fs:40, %rax
movq %rax, -8(%rbp)
xorl %eax, %eax
movq p(%rip), %rdx
leaq -112(%rbp), %rax
leaq .LC0(%rip), %rcx
movq %rcx, %rsi
movq %rax, %rdi
movl $0, %eax
call sprintf@PLT
movq p(%rip), %rax
testq %rax, %rax
jne .L2
movl $8, %edi
call malloc@PLT
movq %rax, p(%rip)
.L2:
leaq -112(%rbp), %rax
movq %rax, %rdi
call strlen@PLT
movq %rax, %rdx
leaq -112(%rbp), %rax
movq %rax, %rsi
movl $1, %edi
call write@PLT
nop
movq -8(%rbp), %rax
subq %fs:40, %rax
je .L3
call __stack_chk_fail@PLT
.L3:
leave
.cfi_def_cfa 7, 8
ret
.cfi_endproc
.LFE6:
.size segv_handler, .-segv_handler
.globl main
.type main, @function
main:
.LFB7:
.cfi_startproc
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset 6, -16
movq %rsp, %rbp
.cfi_def_cfa_register 6
leaq segv_handler(%rip), %rax
movq %rax, %rsi
movl $11, %edi
call signal@PLT
movq p(%rip), %rax
movb $1, (%rax)
movl $0, %eax
popq %rbp
.cfi_def_cfa 7, 8
ret
.cfi_endproc
.LFE7:
.size main, .-main
.ident "GCC: (GNU) 11.1.0"
.section .note.GNU-stack,"",@progbits
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