diff options
Diffstat (limited to 'test/MC/ELF/compression.s')
| -rw-r--r-- | test/MC/ELF/compression.s | 68 |
1 files changed, 60 insertions, 8 deletions
diff --git a/test/MC/ELF/compression.s b/test/MC/ELF/compression.s index 305a84e..07b689e 100644 --- a/test/MC/ELF/compression.s +++ b/test/MC/ELF/compression.s @@ -1,28 +1,80 @@ -// RUN: llvm-mc -filetype=obj -compress-debug-sections -triple x86_64-pc-linux-gnu %s -o - | llvm-objdump -s - | FileCheck %s +// 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 .debug_line: -// FIXME: Figure out how to handle debug_line that currently uses multiple section fragments +// 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 -// CHECK: Contents of section .zdebug_abbrev: -// Check for the 'ZLIB' file magic at the start of the section -// CHECK-NEXT: ZLIB +// 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: -// We shouldn't compress the debug_frame section, since it can be relaxed -// CHECK: Contents of section .debug_frame +// 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 " |