lld/test/ELF/compress-sections.s

   1 # REQUIRES: x86, zlib, zstd
   2
   3 # RUN: rm -rf %t && mkdir %t && cd %t
   4 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o a.o
   5 # RUN: ld.lld -pie a.o -o out --compress-sections '*0=zlib' --compress-sections '*0=none' --compress-sections 'nomatch=none'
   6 # RUN: llvm-readelf -SrsX out | FileCheck %s --check-prefix=CHECK1
   7
   8 # CHECK1:      Name       Type          Address     Off      Size     ES Flg Lk Inf Al
   9 # CHECK1:      foo0       PROGBITS [[#%x,FOO0:]]    [[#%x,]] [[#%x,]] 00 A    0   0  8
  10 # CHECK1-NEXT: foo1       PROGBITS [[#%x,FOO1:]]    [[#%x,]] [[#%x,]] 00 A    0   0  8
  11 # CHECK1-NEXT: .text      PROGBITS [[#%x,TEXT:]]    [[#%x,]] [[#%x,]] 00 AX   0   0  4
  12 # CHECK1:      nonalloc0  PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 00      0   0  8
  13 # CHECK1-NEXT: nonalloc1  PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 00      0   0  8
  14 # CHECK1-NEXT: smallc0    PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 00      0   0  8
  15 # CHECK1-NEXT: .debug_str PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 01 MS   0   0  1
  16
  17 # CHECK1: 0000000000000090  0 NOTYPE  LOCAL  DEFAULT   [[#]] (nonalloc0) sym0
  18 # CHECK1: 0000000000000088  0 NOTYPE  LOCAL  DEFAULT   [[#]] (nonalloc1) sym1
  19
  20 # RUN: ld.lld -pie a.o --compress-sections '*c0=zlib' --compress-sections .debug_str=zstd:3 -o out2
  21 # RUN: llvm-readelf -SrsX -x nonalloc0 -x .debug_str out2 | FileCheck %s --check-prefix=CHECK2
  22
  23 # CHECK2:      Name       Type          Address     Off      Size     ES Flg Lk Inf Al
  24 # CHECK2:      foo0       PROGBITS [[#%x,FOO0:]]    [[#%x,]] [[#%x,]] 00 A    0   0  8
  25 # CHECK2-NEXT: foo1       PROGBITS [[#%x,FOO1:]]    [[#%x,]] [[#%x,]] 00 A    0   0  8
  26 # CHECK2-NEXT: .text      PROGBITS [[#%x,TEXT:]]    [[#%x,]] [[#%x,]] 00 AX   0   0  4
  27 # CHECK2:      nonalloc0  PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 00 C    0   0  1
  28 # CHECK2-NEXT: nonalloc1  PROGBITS 0000000000000000 [[#%x,]] 000088   00      0   0  8
  29 # CHECK2-NEXT: smallc0    PROGBITS 0000000000000000 [[#%x,]] 00000c   00      0   0  1
  30 # CHECK2-NEXT: .debug_str PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 01 MSC  0   0  1
  31
  32 # CHECK2: 0000000000000090  0 NOTYPE  LOCAL  DEFAULT   [[#]] (nonalloc0) sym0
  33 # CHECK2: 0000000000000088  0 NOTYPE  LOCAL  DEFAULT   [[#]] (nonalloc1) sym1
  34
  35 # CHECK2:      Hex dump of section 'nonalloc0':
  36 ## zlib with ch_size=0x90
  37 # CHECK2-NEXT: 01000000 00000000 90000000 00000000
  38 # CHECK2-NEXT: 01000000 00000000 {{.*}}
  39 # CHECK2:      Hex dump of section '.debug_str':
  40 ## zstd with ch_size=0x38
  41 # CHECK2-NEXT: 02000000 00000000 38000000 00000000
  42 # CHECK2-NEXT: 01000000 00000000 {{.*}}
  43
  44 ## --compress-sections takes precedence.
  45 # RUN: ld.lld a.o --compress-sections .debug_str=zstd --compress-debug-sections=none -o out3
  46 # RUN: llvm-readelf -S out3 | FileCheck %s --check-prefix=CHECK3
  47
  48 # CHECK3:      .debug_str PROGBITS 0000000000000000 [[#%x,]] [[#%x,]] 01 MSC  0   0  1
  49
  50 # RUN: not ld.lld a.o --compress-sections '*0=zlib' 2>&1 | \
  51 # RUN:   FileCheck %s --check-prefix=ERR-ALLOC --implicit-check-not=error:
  52 # ERR-ALLOC: error: --compress-sections: section 'foo0' with the SHF_ALLOC flag cannot be compressed
  53
  54 # RUN: not ld.lld --compress-sections=foo a.o 2>&1 | \
  55 # RUN:   FileCheck %s --check-prefix=ERR1 --implicit-check-not=error:
  56 # ERR1:      error: --compress-sections: parse error, not 'section-glob=[none|zlib|zstd]'
  57
  58 # RUN: not ld.lld --compress-sections 'a[=zlib' a.o 2>&1 | \
  59 # RUN:   FileCheck %s --check-prefix=ERR2 --implicit-check-not=error:
  60 # ERR2:      error: --compress-sections: invalid glob pattern, unmatched '['
  61
  62 # RUN: not ld.lld a.o --compress-sections='.debug*=zlib-gabi' --compress-sections='.debug*=' 2>&1 | \
  63 # RUN:   FileCheck -check-prefix=ERR3 %s
  64 # ERR3:      unknown --compress-sections value: zlib-gabi
  65 # ERR3-NEXT: --compress-sections: parse error, not 'section-glob=[none|zlib|zstd]'
  66
  67 # RUN: not ld.lld a.o --compress-sections='a=zlib:' --compress-sections='a=zlib:-1' 2>&1 | \
  68 # RUN:   FileCheck %s --check-prefix=ERR4 --implicit-check-not=error:
  69 # ERR4: error: --compress-sections: expected a non-negative integer compression level, but got ''
  70 # ERR4: error: --compress-sections: expected a non-negative integer compression level, but got '-1'
  71
  72 ## Invalid compression level for zlib.
  73 # RUN: not ld.lld a.o --compress-sections='.debug*=zlib:99' 2>&1 | \
  74 # RUN:   FileCheck %s --check-prefix=ERR6 --implicit-check-not=error:
  75 # ERR6: error: --compress-sections: deflateInit2 returned -2
  76
  77 .globl _start
  78 _start:
  79   ret
  80
  81 .section foo0,"a"
  82 .balign 8
  83 .quad .text-.
  84 .quad .text-.
  85 .space 128
  86 .section foo1,"a"
  87 .balign 8
  88 .quad .text-.
  89 .quad .text-.
  90 .space 128
  91 .section nonalloc0,""
  92 .balign 8
  93 .quad .text+1
  94 .quad .text+2
  95 .space 128
  96 sym0:
  97 .section nonalloc1,""
  98 .balign 8
  99 .quad 42
 100 .space 128
 101 sym1:
 102
 103 .section smallc0,""
 104 .balign 8
 105 .space 12
 106
 107 .section .debug_str,"MS",@progbits,1
 108 .Linfo_string0:
 109   .asciz "AAAAAAAAAAAAAAAAAAAAAAAAAAA"
 110 .Linfo_string1:
 111   .asciz "BBBBBBBBBBBBBBBBBBBBBBBBBBB"