File: trivial-static-initializer.S

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (44 lines) | stat: -rw-r--r-- 1,081 bytes parent folder | download | duplicates (26) 
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
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
 
// Test that basic MachO static initializers work. The main function in this
// test returns the value of 'x', which is initially 1 in the data section,
// and reset to 0 if the _static_init function is run. If the static initializer
// does not run then main will return 1, causing the test to be treated as a
// failure.
//
// RUN: %clang -c -o %t %s
// RUN: %llvm_jitlink %t

  .section  __TEXT,__text,regular,pure_instructions
  .build_version macos, 12, 0 sdk_version 12, 0

# static initializer sets the value of 'x' to zero.
  .globl  _static_init
  .p2align  2
_static_init:
  .cfi_startproc
; %bb.0:
  adrp  x8, _x@PAGE
  str wzr, [x8, _x@PAGEOFF]
  ret
  .cfi_endproc

# main returns the value of 'x', which is defined as 1 in the data section..
  .globl  _main
  .p2align  2
_main:
  sub sp, sp, #16
  str wzr, [sp, #12]
  adrp  x8, _x@PAGE
  ldr w0, [x8, _x@PAGEOFF]
  add sp, sp, #16
  ret

  .section  __DATA,__data
  .globl  _x
  .p2align  2
_x:
  .long 1

  .section  __DATA,__mod_init_func,mod_init_funcs
  .p2align  3
  .quad _static_init
.subsections_via_symbols