File: data-vs-code-priority.s

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; 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: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (66 lines) | stat: -rw-r--r-- 1,767 bytes parent folder | download | duplicates (12)
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
@ REQUIRES: arm-registered-target

// Test that code symbols take priority over data symbols if both are
// defined at the same address during disassembly.
//
// In the past, llvm-objdump would select the alphabetically last
// symbol at each address. To demonstrate that it's now choosing by
// symbol type, we define pairs of code and data symbols at the same
// address in such a way that the code symbol and data symbol each
// have a chance to appear alphabetically last. Also, we test that
// both STT_FUNC and STT_NOTYPE are regarded as code symbols.

@ RUN: llvm-mc -triple armv8a-unknown-linux -filetype=obj %s -o %t.o
@ RUN: llvm-objdump --no-print-imm-hex --triple armv8a -d %t.o | FileCheck %s

// Ensure that all four instructions in the section are disassembled
// rather than dumped as data, and that in each case, the code symbol
// is displayed before the disassembly, and not the data symbol at the
// same address.

@ CHECK:        Disassembly of section .text:
@ CHECK-EMPTY:
@ CHECK-NEXT:   <A1function>:
@ CHECK-NEXT:   movw r0, #1
@ CHECK-EMPTY:
@ CHECK-NEXT:   <B2function>:
@ CHECK-NEXT:   movw r0, #2
@ CHECK-EMPTY:
@ CHECK-NEXT:   <A3notype>:
@ CHECK-NEXT:   movw r0, #3
@ CHECK-EMPTY:
@ CHECK-NEXT:   <B4notype>:
@ CHECK-NEXT:   movw r0, #4

.text

.globl A1function
.globl B2function
.globl A3notype
.globl B4notype
.globl B1object
.globl A2object
.globl B3object
.globl A4object

.type A1function,%function
.type B2function,%function
.type A3notype,%notype
.type B4notype,%notype
.type B1object,%object
.type A2object,%object
.type B3object,%object
.type A4object,%object

A1function:
B1object:
        movw r0, #1
A2object:
B2function:
        movw r0, #2
A3notype:
B3object:
        movw r0, #3
A4object:
B4notype:
        movw r0, #4