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// RUN: llvm-mc -filetype=obj -compress-debug-sections -triple x86_64-pc-linux-gnu < %s -o %t
// RUN: llvm-objdump -s %t | FileCheck %s
// RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck --check-prefix=INFO %s
// RUN: llvm-mc -filetype=obj -compress-debug-sections -triple i386-pc-linux-gnu < %s \
// RUN: | llvm-readobj -symbols - | FileCheck --check-prefix=386-SYMBOLS %s
// REQUIRES: zlib
// CHECK: Contents of section .zdebug_line:
// Check for the 'ZLIB' file magic at the start of the section only
// CHECK-NEXT: ZLIB
// CHECK-NOT: ZLIB
// CHECK: Contents of
// Don't compress small sections, such as this simple debug_abbrev example
// CHECK: Contents of section .debug_abbrev:
// CHECK-NOT: ZLIB
// CHECK-NOT: Contents of
// CHECK: Contents of section .debug_info:
// FIXME: Handle compressing alignment fragments to support compressing debug_frame
// CHECK: Contents of section .debug_frame:
// CHECK-NOT: ZLIB
// CHECK: Contents of
// Decompress one valid dwarf section just to check that this roundtrips
// INFO: 0x00000000: Compile Unit: length = 0x0000000c version = 0x0004 abbr_offset = 0x0000 addr_size = 0x08 (next unit at 0x00000010)
// In x86 32 bit named symbols are used for temporary symbols in merge
// sections, so make sure we handle symbols inside compressed sections
// 386-SYMBOLS: Name: .Linfo_string0
// 386-SYMBOLS-NOT: }
// 386-SYMBOLS: Section: .zdebug_str
.section .debug_line,"",@progbits
.section .debug_abbrev,"",@progbits
.Lsection_abbrev:
.byte 1 # Abbreviation Code
.byte 17 # DW_TAG_compile_unit
.byte 0 # DW_CHILDREN_no
.byte 27 # DW_AT_comp_dir
.byte 14 # DW_FORM_strp
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.section .debug_info,"",@progbits
.long 12 # Length of Unit
.short 4 # DWARF version number
.long .Lsection_abbrev # Offset Into Abbrev. Section
.byte 8 # Address Size (in bytes)
.byte 1 # Abbrev [1] DW_TAG_compile_unit
.long .Linfo_string0 # DW_AT_comp_dir
.text
foo:
.cfi_startproc
.file 1 "Driver.ii"
# pad out the line table to make sure it's big enough to warrant compression
.loc 1 2 0
nop
.loc 1 3 0
nop
.loc 1 4 0
nop
.loc 1 5 0
nop
.loc 1 6 0
nop
.loc 1 7 0
nop
.loc 1 8 0
nop
.cfi_endproc
.cfi_sections .debug_frame
.section .debug_str,"MS",@progbits,1
.Linfo_string0:
.asciz "compress this "
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