4539b44148
This patch implements proposal https://lists.llvm.org/pipermail/llvm-dev/2020-August/144579.html llvm-dwarfutil - is a tool that is used for processing debug info(DWARF) located in built binary files to improve debug info quality, reduce debug info size. The patch currently implements smaller set of command-line options(comparing to the proposal): ``` ./llvm-dwarfutil [options] <input file> <output file> --garbage-collection Do garbage collection for debug info(default) -j <value> Alias for --num-threads --no-garbage-collection Don`t do garbage collection for debug info --no-odr-deduplication Don`t do ODR deduplication for debug types --no-odr Alias for --no-odr-deduplication --no-separate-debug-file Create single output file, containing debug tables(default) --num-threads <threads> Number of available threads for multi-threaded execution. Defaults to the number of cores on the current machine --odr-deduplication Do ODR deduplication for debug types(default) --odr Alias for --odr-deduplication --separate-debug-file Create two output files: file w/o debug tables and file with debug tables --tombstone [bfd,maxpc,exec,universal] Tombstone value used as a marker of invalid address(default: universal) =bfd - Zero for all addresses and [1,1] for DWARF v4 (or less) address ranges and exec =maxpc - Minus 1 for all addresses and minus 2 for DWARF v4 (or less) address ranges =exec - Match with address ranges of executable sections =universal - Both: bfd and maxpc ``` Reviewed By: clayborg Differential Revision: https://reviews.llvm.org/D86539
35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
## This test checks that debug info contained in the source file
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## is fully copied to the destination file in case --no-garbage-collection
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## is specified.
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# RUN: yaml2obj %p/Inputs/common.yaml -o %t.o
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## Check that the resulting file contains debug info from source file.
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# RUN: llvm-dwarfutil --no-garbage-collection %t.o %t1
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# RUN: llvm-dwarfdump -a %t1 | FileCheck %s
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## Check that the second copy matches with the first.
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# RUN: llvm-dwarfutil --no-garbage-collection %t1 %t2
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# RUN: cmp %t1 %t2
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## Check that input file passed through <stdin> is correctly processesed.
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# RUN: llvm-dwarfutil --no-garbage-collection - %t2 < %t1
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# RUN: cmp %t1 %t2
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# CHECK: .debug_abbrev
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# CHECK: DW_TAG_compile_unit
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# CHECK: .debug_info
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# CHECK: DW_TAG_compile_unit
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# CHECK: DW_AT_producer{{.*}}"by_hand"
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# CHECK: DW_AT_language{{.*}}DW_LANG_C_plus_plus
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# CHECK: DW_AT_name{{.*}}"CU1"
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# CHECK: DW_TAG_class_type
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# CHECK: DW_AT_name{{.*}}"class1"
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# CHECK: DW_TAG_base_type
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# CHECK: DW_AT_name{{.*}}"int"
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# CHECK: DW_AT_name{{.*}}"char"
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# CHECK: DW_AT_name{{.*}}"float"
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# CHECK: DW_TAG_pointer_type
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# CHECK: DW_TAG_variable
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# CHECK: DW_AT_name{{.*}}"var1"
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