File: ppc64-long-branch-localentry-offset.s

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (30 lines) | stat: -rw-r--r-- 769 bytes parent folder | download | duplicates (24) 
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
 
# REQUIRES: ppc

# RUN: llvm-mc -filetype=obj -triple=ppc64le %s -o %t.o
# RUN: ld.lld %t.o -z separate-code -o %t
# RUN: llvm-nm %t | FileCheck %s

# CHECK-DAG: 0000000010010000 t __long_branch_callee
# CHECK-DAG: 0000000010010020 T _start
# CHECK-DAG: 0000000012010018 T callee

# The bl instruction jumps to the local entry. The distance requires a long branch stub:
# localentry(callee) - _start = 0x12010008+8 - 0x10010010 = 0x2000000

# We used to compute globalentry(callee) - _start and caused a "R_PPC64_REL24
# out of range" error because we didn't create the stub.

.globl _start
_start:
  bl callee

.space 0x1fffff4

.globl callee
callee:
.Lgep0:
  addis 2, 12, .TOC.-.Lgep0@ha
  addi 2, 2, .TOC.-.Lgep0@l
.Llep0:
  .localentry callee, .Llep0-.Lgep0
  blr