140 lines
4.3 KiB
ArmAsm
140 lines
4.3 KiB
ArmAsm
// REQUIRES: zlib
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// Check zlib style
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// RUN: llvm-mc -filetype=obj -compress-debug-sections=zlib -triple x86_64-pc-linux-gnu < %s -o %t
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// RUN: llvm-objdump -s %t | FileCheck %s
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// RUN: llvm-dwarfdump -debug-str %t | FileCheck --check-prefix=STR %s
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// RUN: llvm-readelf --sections %t | FileCheck --check-prefixes=FLAGS,FLAGS64 %s
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// RUN: llvm-mc -filetype=obj -compress-debug-sections=zlib -triple i386-pc-linux-gnu --defsym I386=1 %s -o %t
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// RUN: llvm-readelf -S -s %t | FileCheck --check-prefixes=386-SYMBOLS,FLAGS,FLAGS32 %s
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// Decompress one valid dwarf section just to check that this roundtrips,
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// we use .debug_str section for that
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// STR: perfectly compressable data sample *****************************************
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// Now check the zlib style output:
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// Don't compress small sections, such as this simple debug_abbrev example
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// CHECK: Contents of section .debug_abbrev:
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// CHECK-NOT: ZLIB
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// CHECK-NOT: Contents of
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// CHECK: Contents of section .debug_info:
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// FIXME: Handle compressing alignment fragments to support compressing debug_frame
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// CHECK: Contents of section .debug_frame:
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// CHECK-NOT: ZLIB
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// CHECK: Contents of
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# FLAGS: .text PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] 00 AX 0 0 4
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# FLAGS: .nonalloc PROGBITS [[#%x,]] [[#%x,]] 000226 00 0 0 1
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## Check that the large .debug_line and .debug_frame have the SHF_COMPRESSED
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## flag.
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# FLAGS32: .debug_line PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] 00 C 0 0 4
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# FLAGS32: .debug_abbrev PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] 00 0 0 1
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# FLAGS32: .debug_info PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] 00 0 0 1
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# FLAGS32: .debug_frame PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] 00 C 0 0 4
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# FLAGS64: .debug_line PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] 00 C 0 0 8
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# FLAGS64: .debug_abbrev PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] 00 0 0 1
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# FLAGS64: .debug_info PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] 00 0 0 1
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# FLAGS64: .debug_frame PROGBITS [[#%x,]] [[#%x,]] [[#%x,]] 00 C 0 0 8
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# 386-SYMBOLS: Symbol table '.symtab'
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# 386-SYMBOLS: .debug_str
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## Don't compress a section not named .debug_*.
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.section .nonalloc,"",@progbits
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.rept 50
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.asciz "aaaaaaaaaa"
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.endr
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.section .debug_line,"",@progbits
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.section .debug_abbrev,"",@progbits
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.Lsection_abbrev:
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.byte 1 # Abbreviation Code
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.byte 17 # DW_TAG_compile_unit
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.byte 0 # DW_CHILDREN_no
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.byte 27 # DW_AT_comp_dir
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.byte 14 # DW_FORM_strp
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.section .debug_info,"",@progbits
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.long 12 # Length of Unit
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.short 4 # DWARF version number
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.long .Lsection_abbrev # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 1 # Abbrev [1] DW_TAG_compile_unit
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.long .Linfo_string0 # DW_AT_comp_dir
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.text
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foo:
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.cfi_startproc
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.file 1 "Driver.ii"
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.rept 3
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.ifdef I386
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pushl %ebp
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.cfi_def_cfa_offset 8
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.cfi_offset %ebp, -8
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movl %esp, %ebp
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.cfi_def_cfa_register %ebp
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pushl %ebx
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pushl %edi
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pushl %esi
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.cfi_offset %esi, -20
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.cfi_offset %edi, -16
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.cfi_offset %ebx, -12
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.loc 1 1 1 prologue_end
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popl %esi
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popl %edi
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popl %ebx
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popl %ebp
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.cfi_def_cfa %esp, 4
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.else
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pushq %rbp
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.cfi_def_cfa_offset 16
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.cfi_offset %rbp, -16
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movq %rsp, %rbp
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.cfi_def_cfa_register %rbp
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pushq %r15
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pushq %r14
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pushq %r13
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pushq %r12
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pushq %rbx
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.cfi_offset %rbx, -56
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.cfi_offset %r12, -48
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.cfi_offset %r13, -40
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.cfi_offset %r14, -32
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.cfi_offset %r15, -24
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.loc 1 1 1 prologue_end
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popq %rbx
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popq %r12
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popq %r13
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popq %r14
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popq %r15
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popq %rbp
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.cfi_def_cfa %rsp, 8
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.endif
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.endr
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# pad out the line table to make sure it's big enough to warrant compression
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.irpc i, 123456789
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.irpc j, 0123456789
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.loc 1 \i\j \j
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nop
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.endr
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.endr
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.cfi_endproc
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.cfi_sections .debug_frame
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# Below is the section we will use to check that after compression with llvm-mc,
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# llvm-dwarfdump tool will be able to decompress data back and dump it. Data sample
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# should be compressable enough, so it is filled with some amount of equal symbols at the end
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.section .debug_str,"MS",@progbits,1
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.Linfo_string0:
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.asciz "perfectly compressable data sample *****************************************"
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