File: thread-step-out-ret-addr-check.s

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (25 lines) | stat: -rw-r--r-- 640 bytes parent folder | download | duplicates (21) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
        .text
        .globl  asm_main
asm_main:
        sub $0x8, %rsp
        movq $0, (%rsp)
        push %rsp
        jmp nonstandard_stub

# Takes a single pointer argument via the stack, which is nonstandard for x64.
# Executing 'thread step-out' here will initially attempt to write a
# breakpoint to that stack address, but should fail because of the executable
# memory check.
        .globl nonstandard_stub
nonstandard_stub:
        mov (%rsp), %rdi
        mov (%rdi), %rsi
        add $1, %rsi
        mov %rsi, (%rdi)

        add $0x10, %rsp
        ret

#ifdef __linux__
        .section .note.GNU-stack,"",@progbits
#endif