File: pre_init_fini_array_missing.s

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-23
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 1,800,648 kB
  • sloc: cpp: 6,428,647; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,888; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (42 lines) | stat: -rw-r--r-- 1,377 bytes parent folder | download | duplicates (15)
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
// REQUIRES: x86
// RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
// RUN: ld.lld %t.o -o %t
// RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s
// RUN: ld.lld -pie %t.o -o %t2
// RUN: llvm-objdump -d --no-show-raw-insn %t2 | FileCheck --check-prefix=PIE %s

.globl _start
_start:
  call __preinit_array_start
  call __preinit_array_end
  call __init_array_start
  call __init_array_end
  call __fini_array_start
  call __fini_array_end

// With no .init_array section the symbols resolve to .text.
// 0x201120 - (0x201120 + 5) = -5
// 0x201120 - (0x201125 + 5) = -10
// ...

// CHECK: Disassembly of section .text:
// CHECK-EMPTY:
// CHECK-NEXT:  <_start>:
// CHECK-NEXT:   201120:       callq    0x201120
// CHECK-NEXT:                 callq    0x201120
// CHECK-NEXT:                 callq    0x201120
// CHECK-NEXT:                 callq    0x201120
// CHECK-NEXT:                 callq    0x201120
// CHECK-NEXT:                 callq    0x201120

// In position-independent binaries, they resolve to .text too.

// PIE:      Disassembly of section .text:
// PIE-EMPTY:
// PIE-NEXT: <_start>:
// PIE-NEXT:     1210:       callq   0x1210
// PIE-NEXT:                 callq   0x1210
// PIE-NEXT:                 callq   0x1210
// PIE-NEXT:                 callq   0x1210
// PIE-NEXT:                 callq   0x1210
// PIE-NEXT:                 callq   0x1210