128 lines
4.9 KiB
ArmAsm
128 lines
4.9 KiB
ArmAsm
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// REQUIRES: zlib
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// Check zlib-gnu style
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// RUN: llvm-mc -filetype=obj -compress-debug-sections=zlib-gnu -triple x86_64-pc-linux-gnu < %s -o %t
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// RUN: llvm-objdump -s %t | FileCheck --check-prefix=CHECK-GNU-STYLE %s
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// RUN: llvm-dwarfdump -debug-str %t | FileCheck --check-prefix=STR %s
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// RUN: llvm-mc -filetype=obj -compress-debug-sections=zlib-gnu -triple i386-pc-linux-gnu < %s \
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// RUN: | llvm-readobj --symbols - | FileCheck --check-prefix=386-SYMBOLS-GNU %s
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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 --check-prefix=CHECK-ZLIB-STYLE %s
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// RUN: llvm-dwarfdump -debug-str %t | FileCheck --check-prefix=STR %s
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// RUN: llvm-readobj --sections %t | FileCheck --check-prefixes=ZLIB-STYLE-FLAGS,ZLIB-STYLE-FLAGS64 %s
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// RUN: llvm-mc -filetype=obj -compress-debug-sections=zlib -triple i386-pc-linux-gnu < %s -o %t
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// RUN: llvm-readobj --symbols -S %t \
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// RUN: | FileCheck --check-prefixes=386-SYMBOLS-ZLIB,ZLIB-STYLE-FLAGS,ZLIB-STYLE-FLAGS32 %s
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// Don't compress small sections, such as this simple debug_abbrev example
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// CHECK-GNU-STYLE: Contents of section .debug_abbrev:
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// CHECK-GNU-STYLE-NOT: ZLIB
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// CHECK-GNU-STYLE-NOT: Contents of
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// CHECK-GNU-STYLE: Contents of section .debug_info:
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// CHECK-GNU-STYLE: Contents of section .zdebug_str:
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// Check for the 'ZLIB' file magic at the start of the section only
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// CHECK-GNU-STYLE-NEXT: ZLIB
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// CHECK-GNU-STYLE-NOT: ZLIB
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// FIXME: Handle compressing alignment fragments to support compressing debug_frame
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// CHECK-GNU-STYLE: Contents of section .debug_frame:
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// CHECK-GNU-STYLE-NOT: ZLIB
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// CHECK-GNU-STYLE: Contents of
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// Decompress one valid dwarf section just to check that this roundtrips,
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// we use .zdebug_str section for that
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// STR: perfectly compressable data sample *****************************************
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// In x86 32 bit named symbols are used for temporary symbols in merge
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// sections, so make sure we handle symbols inside compressed sections
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// 386-SYMBOLS-GNU: Name: .zdebug_str
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// 386-SYMBOLS-GNU-NOT: }
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// 386-SYMBOLS-GNU: Section: .zdebug_str
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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-ZLIB-STYLE: Contents of section .debug_abbrev:
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// CHECK-ZLIB-STYLE-NOT: ZLIB
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// CHECK-ZLIB-STYLE-NOT: Contents of
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// CHECK-ZLIB-STYLE: Contents of section .debug_info:
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// FIXME: Handle compressing alignment fragments to support compressing debug_frame
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// CHECK-ZLIB-STYLE: Contents of section .debug_frame:
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// CHECK-ZLIB-STYLE-NOT: ZLIB
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// CHECK-ZLIB-STYLE: Contents of
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// Check that debug_line section was not renamed, so it is
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// zlib-style, not zlib-gnu one. Check that SHF_COMPRESSED was set.
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// ZLIB-STYLE-FLAGS: Section {
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// ZLIB-STYLE-FLAGS: Index:
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// ZLIB-STYLE-FLAGS: Name: .debug_str
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// ZLIB-STYLE-FLAGS-NEXT: Type: SHT_PROGBITS
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// ZLIB-STYLE-FLAGS-NEXT: Flags [
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// ZLIB-STYLE-FLAGS-NEXT: SHF_COMPRESSED
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// ZLIB-STYLE-FLAGS-NEXT: SHF_MERGE
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// ZLIB-STYLE-FLAGS-NEXT: SHF_STRINGS
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// ZLIB-STYLE-FLAGS-NEXT: ]
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// ZLIB-STYLE-FLAGS-NEXT: Address:
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// ZLIB-STYLE-FLAGS-NEXT: Offset:
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// ZLIB-STYLE-FLAGS-NEXT: Size:
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// ZLIB-STYLE-FLAGS-NEXT: Link:
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// ZLIB-STYLE-FLAGS-NEXT: Info:
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// ZLIB-STYLE-FLAGS32-NEXT: AddressAlignment: 4
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// ZLIB-STYLE-FLAGS64-NEXT: AddressAlignment: 8
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// 386-SYMBOLS-ZLIB: Name: .debug_str
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// 386-SYMBOLS-ZLIB-NOT: }
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// 386-SYMBOLS-ZLIB: Section: .debug_str
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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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# pad out the line table to make sure it's big enough to warrant compression
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.loc 1 2 0
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nop
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.loc 1 3 0
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nop
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.loc 1 4 0
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nop
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.loc 1 5 0
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nop
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.loc 1 6 0
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nop
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.loc 1 7 0
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nop
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.loc 1 8 0
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nop
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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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