File: thumb-function-address.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 (42 lines) | stat: -rw-r--r-- 1,305 bytes parent folder | download | duplicates (3)
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
@ RUN: llvm-mc -filetype=obj -triple=armv7-linux-gnueabi %s -o %t
@ RUN: llvm-readelf -s %t | FileCheck %s

@@ GNU as sets the thumb state according to the thumb state of the label. If a
@@ .type directive is placed after the label, set the symbol's thumb state
@@ according to the thumb state of the .type directive. This matches GNU as in
@@ most cases.

.syntax unified
.text
.thumb
func_label:
.type func_label, %function

.type foo_impl, %function
foo_impl:
  bx lr
.type foo_resolver, %function
foo_resolver:
  b foo_impl
.type foo, %gnu_indirect_function
.set foo, foo_resolver

@@ Note: GNU as sets the value to 1.
.thumb
label:
  bx lr
.arm
  bx lr
.type label, %function

@@ Check func_label, foo_impl, foo_resolver, and foo addresses have bit 0 set.
@@ Check label has bit 0 unset.
@ CHECK:      Value Size Type   Bind  Vis     Ndx Name
@ CHECK-NEXT: 00000000 0 NOTYPE LOCAL DEFAULT     UND
@ CHECK-NEXT: 00000001 0 FUNC   LOCAL DEFAULT 2   func_label
@ CHECK-NEXT: 00000001 0 FUNC   LOCAL DEFAULT 2   foo_impl
@ CHECK-NEXT: 00000000 0 NOTYPE LOCAL DEFAULT 2   $t.0
@ CHECK-NEXT: 00000003 0 FUNC   LOCAL DEFAULT 2   foo_resolver
@ CHECK-NEXT: 00000003 0 IFUNC  LOCAL DEFAULT 2   foo
@ CHECK-NEXT: 00000004 0 FUNC   LOCAL DEFAULT 2   label
@ CHECK-NEXT: 00000008 0 NOTYPE LOCAL DEFAULT 2   $a.1