7bc1b28291
As discussed on llvm-dev in http://lists.llvm.org/pipermail/llvm-dev/2017-September/117301.html this changes the command line interface of llvm-dwarfdump to match the one used by the dwarfdump utility shipping on macOS. In addition to being shorter to type this format also has the advantage of allowing more than one section to be specified at the same time. In a nutshell, with this change $ llvm-dwarfdump --debug-dump=info $ llvm-dwarfdump --debug-dump=apple-objc becomes $ dwarfdump --debug-info --apple-objc Differential Revision: https://reviews.llvm.org/D37714 llvm-svn: 312970
62 lines
2.5 KiB
ArmAsm
62 lines
2.5 KiB
ArmAsm
# This test verifies that an empty range list in the .debug_ranges section
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# doesn't crash llvm-dsymutil. As clang does not produce this kind of debug
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# info anymore, we used this hand-crafted assembly file to produce a testcase
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# Compile with:
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# llvm-mc -triple x86_64-apple-darwin -filetype=obj -o 1.o empty_range.o
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# RUN: llvm-dsymutil -f -y %p/dummy-debug-map.map -oso-prepend-path %p/../Inputs/empty_range -o - | llvm-dwarfdump -debug-info - | FileCheck %s
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.section __TEXT,__text,regular,pure_instructions
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.macosx_version_min 10, 11
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.globl __Z3foov
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.align 4, 0x90
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__Z3foov: ## @_Z3foov
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Lfunc_begin0:
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pushq %rbp
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movq %rsp, %rbp
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popq %rbp
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retq
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Lfunc_end0:
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.section __DWARF,__debug_abbrev,regular,debug
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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 1 ## DW_CHILDREN_yes
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.byte 0 ## EOM(1)
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.byte 0 ## EOM(2)
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.byte 2 ## Abbreviation Code
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.byte 46 ## DW_TAG_subprogram
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.byte 0 ## DW_CHILDREN_no
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.byte 17 ## DW_AT_low_pc
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.byte 1 ## DW_FORM_addr
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.byte 0x55 ## DW_AT_ranges
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.byte 6 ## DW_FORM_data4
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.byte 0 ## EOM(1)
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.byte 0 ## EOM(2)
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.byte 0 ## EOM(3)
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.section __DWARF,__debug_info,regular,debug
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Lsection_info:
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.long 22 ## Length of Unit
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.short 2 ## DWARF version number
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.long 0 ## 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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.byte 2 ## Abbrev [2] DW_TAG_subprogram
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.quad Lfunc_begin0 ## DW_AT_low_pc
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.long 0 ## DW_AT_ranges (pointing at an empty entry)
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.byte 0 ## End Of Children Mark
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.section __DWARF,__debug_ranges,regular,debug
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Ldebug_range:
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.long 0
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.long 0
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# CHECK: DW_TAG_compile_unit
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# CHECK: DW_TAG_subprogram
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# CHECK-NEXT: DW_AT_low_pc{{.*}}(0x0000000000010000)
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# CHECK-NEXT: DW_AT_ranges{{.*}}(0x00000000)
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# There was a bug that would use the currently active object file when a
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# debug map object isn't found. Check that we only linked one file.
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# CHECK-NOT: DW_TAG_compile_unit
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