| // REQUIRES: zlib |
| // Check zlib-gnu style |
| // RUN: llvm-mc -filetype=obj -compress-debug-sections=zlib-gnu -triple x86_64-pc-linux-gnu < %s -o %t |
| // RUN: llvm-objdump -s %t | FileCheck --check-prefix=CHECK-GNU-STYLE %s |
| // RUN: llvm-dwarfdump -debug-str %t | FileCheck --check-prefix=STR %s |
| // RUN: llvm-mc -filetype=obj -compress-debug-sections=zlib-gnu -triple i386-pc-linux-gnu < %s \ |
| // RUN: | llvm-readobj -symbols - | FileCheck --check-prefix=386-SYMBOLS-GNU %s |
| |
| // Check zlib style |
| // RUN: llvm-mc -filetype=obj -compress-debug-sections=zlib -triple x86_64-pc-linux-gnu < %s -o %t |
| // RUN: llvm-objdump -s %t | FileCheck --check-prefix=CHECK-ZLIB-STYLE %s |
| // RUN: llvm-dwarfdump -debug-str %t | FileCheck --check-prefix=STR %s |
| // RUN: llvm-mc -filetype=obj -compress-debug-sections=zlib -triple i386-pc-linux-gnu < %s \ |
| // RUN: | llvm-readobj -symbols - | FileCheck --check-prefix=386-SYMBOLS-ZLIB %s |
| // RUN: llvm-readobj -sections %t | FileCheck --check-prefix=ZLIB-STYLE-FLAGS %s |
| |
| // Don't compress small sections, such as this simple debug_abbrev example |
| // CHECK-GNU-STYLE: Contents of section .debug_abbrev: |
| // CHECK-GNU-STYLE-NOT: ZLIB |
| // CHECK-GNU-STYLE-NOT: Contents of |
| |
| // CHECK-GNU-STYLE: Contents of section .debug_info: |
| |
| // CHECK-GNU-STYLE: Contents of section .zdebug_str: |
| // Check for the 'ZLIB' file magic at the start of the section only |
| // CHECK-GNU-STYLE-NEXT: ZLIB |
| // CHECK-GNU-STYLE-NOT: ZLIB |
| // FIXME: Handle compressing alignment fragments to support compressing debug_frame |
| // CHECK-GNU-STYLE: Contents of section .debug_frame: |
| // CHECK-GNU-STYLE-NOT: ZLIB |
| // CHECK-GNU-STYLE: Contents of |
| |
| // Decompress one valid dwarf section just to check that this roundtrips, |
| // we use .zdebug_str section for that |
| // STR: perfectly compressable data sample ***************************************** |
| |
| // 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-GNU: Name: .Linfo_string0 |
| // 386-SYMBOLS-GNU-NOT: } |
| // 386-SYMBOLS-GNU: Section: .zdebug_str |
| |
| // Now check the zlib style output: |
| |
| // Don't compress small sections, such as this simple debug_abbrev example |
| // CHECK-ZLIB-STYLE: Contents of section .debug_abbrev: |
| // CHECK-ZLIB-STYLE-NOT: ZLIB |
| // CHECK-ZLIB-STYLE-NOT: Contents of |
| // CHECK-ZLIB-STYLE: Contents of section .debug_info: |
| // FIXME: Handle compressing alignment fragments to support compressing debug_frame |
| // CHECK-ZLIB-STYLE: Contents of section .debug_frame: |
| // CHECK-ZLIB-STYLE-NOT: ZLIB |
| // CHECK-ZLIB-STYLE: Contents of |
| |
| // Check that debug_line section was not renamed, so it is |
| // zlib-style, not zlib-gnu one. Check that SHF_COMPRESSED was set. |
| // ZLIB-STYLE-FLAGS: Section { |
| // ZLIB-STYLE-FLAGS: Index: |
| // ZLIB-STYLE-FLAGS: Name: .debug_str |
| // ZLIB-STYLE-FLAGS-NEXT: Type: SHT_PROGBITS |
| // ZLIB-STYLE-FLAGS-NEXT: Flags [ |
| // ZLIB-STYLE-FLAGS-NEXT: SHF_COMPRESSED |
| |
| // 386-SYMBOLS-ZLIB: Name: .Linfo_string0 |
| // 386-SYMBOLS-ZLIB-NOT: } |
| // 386-SYMBOLS-ZLIB: Section: .debug_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 |
| |
| # Below is the section we will use to check that after compression with llvm-mc, |
| # llvm-dwarfdump tool will be able to decompress data back and dump it. Data sample |
| # should be compressable enough, so it is filled with some amount of equal symbols at the end |
| .section .debug_str,"MS",@progbits,1 |
| .Linfo_string0: |
| .asciz "perfectly compressable data sample *****************************************" |
