80 lines
2.6 KiB
ArmAsm
80 lines
2.6 KiB
ArmAsm
// RUN: llvm-mc -filetype=obj -compress-debug-sections -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-dump=info %t | FileCheck --check-prefix=INFO %s
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// RUN: llvm-mc -filetype=obj -compress-debug-sections -triple i386-pc-linux-gnu < %s \
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// RUN: | llvm-readobj -symbols - | FileCheck --check-prefix=386-SYMBOLS %s
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// REQUIRES: zlib
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// CHECK: Contents of section .zdebug_line:
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// Check for the 'ZLIB' file magic at the start of the section only
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// CHECK-NEXT: ZLIB
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// CHECK-NOT: ZLIB
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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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// Decompress one valid dwarf section just to check that this roundtrips
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// INFO: 0x00000000: Compile Unit: length = 0x0000000c version = 0x0004 abbr_offset = 0x0000 addr_size = 0x08 (next unit at 0x00000010)
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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: Name: .Linfo_string0
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// 386-SYMBOLS-NOT: }
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// 386-SYMBOLS: Section: .zdebug_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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.section .debug_str,"MS",@progbits,1
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.Linfo_string0:
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.asciz "compress this "
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