lld/test/ELF/input-section-flags.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
   3
   4 ## Test the INPUT_SECTION_FLAGS feature. It prefixes an input section list and
   5 ## restricts matches to sections that have the required flags and do not have
   6 ## any of the must not have flags.
   7
   8 ## Uniquely identify each .sec section by flag alone, with .text going into
   9 ## to the SHF_EXECINSTR requiring .outsec2
  10 # RUN: echo "SECTIONS { \
  11 # RUN: .outsec1 : { INPUT_SECTION_FLAGS(SHF_ALLOC & !SHF_EXECINSTR & \
  12 # RUN:                                  !SHF_WRITE & !SHF_MERGE) *(.sec.*) } \
  13 # RUN: .outsec2 : { INPUT_SECTION_FLAGS(SHF_ALLOC & SHF_EXECINSTR & !SHF_WRITE\
  14 # RUN:                                  & !SHF_MERGE) *(.sec.* .text) } \
  15 # RUN: .outsec3 : { INPUT_SECTION_FLAGS(SHF_WRITE) *(.sec.*) } \
  16 # RUN: .outsec4 : { INPUT_SECTION_FLAGS(SHF_MERGE & !SHF_STRINGS) *(.sec.*) } \
  17 # RUN: .outsec5 : { INPUT_SECTION_FLAGS(SHF_STRINGS) *(.sec.*) } \
  18 # RUN: } " > %t.script
  19 # RUN: ld.lld -o %t1 --script %t.script %t.o
  20 # RUN: llvm-readobj --symbols %t1 | FileCheck %s
  21 # CHECK:  Name: _start
  22 # CHECK:  Section: .outsec2
  23 # CHECK:  Name: s1
  24 # CHECK:  Section: .outsec1
  25 # CHECK:  Name: s2
  26 # CHECK:  Section: .outsec2
  27 # CHECK:  Name: s3
  28 # CHECK:  Section: .outsec3
  29 # CHECK:  Name: s4
  30 # CHECK:  Section: .outsec4
  31 # CHECK:  Name: s5
  32 # CHECK:  Section: .outsec5
  33
  34 ## Same test but using OVERLAY.
  35 # RUN: echo "SECTIONS { \
  36 # RUN: OVERLAY 0x1000 : AT ( 0x4000 ) { \
  37 # RUN: .outsec1 { INPUT_SECTION_FLAGS(SHF_ALLOC & !SHF_EXECINSTR & \
  38 # RUN:                                !SHF_WRITE & !SHF_MERGE) *(.sec.*) }\
  39 # RUN: .outsec2 { INPUT_SECTION_FLAGS(SHF_ALLOC & SHF_EXECINSTR & !SHF_WRITE \
  40 # RUN:                                & !SHF_MERGE) *(.sec.* .text) } \
  41 # RUN: .outsec3 { INPUT_SECTION_FLAGS(SHF_WRITE) *(.sec.*) } \
  42 # RUN: .outsec4 { INPUT_SECTION_FLAGS(SHF_MERGE & !SHF_STRINGS) *(.sec.*) } \
  43 # RUN: .outsec5 { INPUT_SECTION_FLAGS(SHF_STRINGS) *(.sec.*) } \
  44 # RUN: } } " > %t2.script
  45
  46 # RUN: ld.lld -o %t2 --script %t2.script %t.o
  47 # RUN: llvm-readobj --symbols %t2 | FileCheck %s
  48
  49 ## Same test but using hex representations of the flags.
  50 # RUN: echo "SECTIONS { \
  51 # RUN: .outsec1 : { INPUT_SECTION_FLAGS(0x2 & !0x4 & !0x1 & !0x10) *(.sec.*) }\
  52 # RUN: .outsec2 : { INPUT_SECTION_FLAGS(0x2 & 0x4 & !0x1 & !0x10) \
  53 # RUN:              *(.sec.* .text) } \
  54 # RUN: .outsec3 : { INPUT_SECTION_FLAGS(0x1) *(.sec.*) } \
  55 # RUN: .outsec4 : { INPUT_SECTION_FLAGS(0x10 & !0x20) *(.sec.*) } \
  56 # RUN: .outsec5 : { INPUT_SECTION_FLAGS(0x20) *(.sec.*) } \
  57 # RUN: } " > %t3.script
  58
  59 # RUN: ld.lld -o %t3 --script %t3.script %t.o
  60 # RUN: llvm-readobj --symbols %t3 | FileCheck %s
  61
  62 ## Check that we can handle multiple InputSectionDescriptions in a single
  63 ## OutputSection
  64 # RUN: echo "SECTIONS { \
  65 # RUN: .outsec1 : { INPUT_SECTION_FLAGS(SHF_ALLOC & !SHF_EXECINSTR & \
  66 # RUN:                                  !SHF_WRITE & !SHF_MERGE) *(.sec.*) ; \
  67 # RUN:              INPUT_SECTION_FLAGS(SHF_ALLOC & SHF_EXECINSTR & !SHF_WRITE\
  68 # RUN:                                  & !SHF_MERGE)  *(.sec.* *.text) }\
  69 # RUN: } " > %t4.script
  70
  71 # RUN: ld.lld -o %t4 --script %t4.script %t.o
  72 # RUN: llvm-readobj --symbols %t4 | FileCheck --check-prefix MULTIPLE %s
  73
  74 # MULTIPLE:  Name: _start
  75 # MULTIPLE:  Section: .outsec1
  76 # MULTIPLE:  Name: s1
  77 # MULTIPLE:  Section: .outsec1
  78 # MULTIPLE:  Name: s2
  79 # MULTIPLE:  Section: .outsec1
  80 # MULTIPLE:  Name: s3
  81 # MULTIPLE:  Section: .sec.aw
  82 # MULTIPLE:  Name: s4
  83 # MULTIPLE:  Section: .sec.aM
  84 # MULTIPLE:  Name: s5
  85 # MULTIPLE:  Section: .sec.aMS
  86
  87  .text
  88  .global _start
  89 _start:
  90  nop
  91
  92  .section .sec.a, "a", @progbits
  93  .globl s1
  94 s1:
  95  .long 1
  96
  97  .section .sec.ax, "ax", @progbits
  98  .globl s2
  99 s2:
 100  .long 2
 101
 102  .section .sec.aw, "aw", @progbits
 103  .globl s3
 104 s3:
 105  .long 3
 106
 107  .section .sec.aM, "aM", @progbits, 4
 108  .globl s4
 109 s4:
 110  .long 4
 111
 112  .section .sec.aMS, "aMS", @progbits, 1
 113  .globl s5
 114 s5:
 115  .asciz "a"