lld/test/ELF/text-section-prefix.s

   1 # REQUIRES: x86
   2 ## -z keep-text-section-prefix separates text sections with prefix .text.hot,
   3 ## .text.unknown, .text.unlikely, .text.startup, or .text.exit, in the absence
   4 ## of a SECTIONS command.
   5
   6 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
   7 # RUN: ld.lld %t.o -o %t1
   8 # RUN: llvm-readelf -S %t1 | FileCheck --check-prefix=NOKEEP %s
   9 # RUN: ld.lld -z nokeep-text-section-prefix %t.o -o %t2
  10 # RUN: cmp %t1 %t2
  11
  12 # RUN: ld.lld -z keep-text-section-prefix %t.o -o %t.keep
  13 # RUN: llvm-readelf -S %t.keep | FileCheck --check-prefix=KEEP %s
  14
  15 # KEEP:      [ 1] .text
  16 # KEEP-NEXT: [ 2] .text.hot
  17 # KEEP-NEXT: [ 3] .text.unknown
  18 # KEEP-NEXT: [ 4] .text.split
  19 # KEEP-NEXT: [ 5] .text.startup
  20 # KEEP-NEXT: [ 6] .text.exit
  21 # KEEP-NEXT: [ 7] .text.unlikely
  22
  23 # NOKEEP:    [ 1] .text
  24 # NOKEEP-NOT:     .text
  25
  26 ## With a SECTIONS command, orphan sections are created verbatim.
  27 ## No grouping is performed for them.
  28 # RUN: echo 'SECTIONS {}' > %t.lds
  29 # RUN: ld.lld -T %t.lds -z keep-text-section-prefix %t.o -o %t.script
  30 # RUN: llvm-readelf -S %t.script | FileCheck --check-prefix=SCRIPT %s
  31
  32 # SCRIPT:      .text
  33 # SCRIPT-NEXT: .text.f
  34 # SCRIPT-NEXT: .text.hot.f_hot
  35 # SCRIPT-NEXT: .text.unknown.f_unknown
  36 # SCRIPT-NEXT: .text.split.f_split
  37 # SCRIPT-NEXT: .text.startup.f_startup
  38 # SCRIPT-NEXT: .text.exit.f_exit
  39 # SCRIPT-NEXT: .text.unlikely.f_unlikely
  40
  41 .globl _start
  42 _start:
  43   ret
  44
  45 .section .text.f,"ax"
  46   nop
  47
  48 .section .text.hot.f_hot,"ax"
  49   nop
  50
  51 .section .text.unknown.f_unknown,"ax"
  52   nop
  53
  54 .section .text.split.f_split,"ax"
  55   nop
  56
  57 .section .text.startup.f_startup,"ax"
  58   nop
  59
  60 .section .text.exit.f_exit,"ax"
  61   nop
  62
  63 .section .text.unlikely.f_unlikely,"ax"
  64   nop