derek.holloway
7502bf64a4
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111 lines
4.5 KiB
ArmAsm
111 lines
4.5 KiB
ArmAsm
## Test disassembling of functions which are spread over multiple sections (ELF
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## segments are modelled as LLDB sections).
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# REQUIRES: x86, lld
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# RUN: split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux %t/file.s -o %t/file.o
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# RUN: ld.lld %t/file.o -o %t/file.out -T %t/file.lds
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# RUN: %lldb %t/file.out -o "disassemble --name func1" -o exit | FileCheck %s
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# CHECK: (lldb) disassemble --name func1
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# CHECK: file.out`func1:
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# CHECK-NEXT: file.out[0x0] <+0>: int $0x2a
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# CHECK: file.out`func1:
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# CHECK-NEXT: file.out[0x1000] <+4096>: int $0x2f
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#--- file.lds
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## Linker script placing the parts of the section into different segments
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## (typically one of these would be for the "hot" code).
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PHDRS {
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text1 PT_LOAD;
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text2 PT_LOAD;
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}
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SECTIONS {
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. = 0;
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.text.part1 : { *(.text.part1) } :text1
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.text.part2 : { *(.text.part2) } :text2
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}
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#--- file.s
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## A very simple function consisting of two parts and DWARF describing the
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## function.
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.section .text.part1,"ax",@progbits
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.p2align 12
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func1:
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int $42
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.Lfunc1_end:
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.section .text.part2,"ax",@progbits
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.p2align 12
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func1.__part.1:
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int $47
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.Lfunc1.__part.1_end:
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.section .debug_abbrev,"",@progbits
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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 37 # DW_AT_producer
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.byte 8 # DW_FORM_string
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.byte 19 # DW_AT_language
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.byte 5 # DW_FORM_data2
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 85 # DW_AT_ranges
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.byte 23 # DW_FORM_sec_offset
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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 85 # DW_AT_ranges
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.byte 23 # DW_FORM_sec_offset
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.byte 3 # DW_AT_name
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.byte 8 # DW_FORM_string
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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 .debug_info,"",@progbits
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.Lcu_begin0:
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.long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
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.Ldebug_info_start0:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbrev DW_TAG_compile_unit
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.asciz "Hand-written DWARF" # DW_AT_producer
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.short 29 # DW_AT_language
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.quad 0 # DW_AT_low_pc
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.long .Ldebug_ranges0 # DW_AT_ranges
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.byte 2 # Abbrev DW_TAG_subprogram
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.long .Ldebug_ranges0 # DW_AT_ranges
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.asciz "func1" # DW_AT_name
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.byte 0 # End Of Children Mark
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.Ldebug_info_end0:
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.section .debug_rnglists,"",@progbits
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.long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length
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.Ldebug_list_header_start0:
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.short 5 # Version
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.byte 8 # Address size
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.byte 0 # Segment selector size
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.long 1 # Offset entry count
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.Lrnglists_table_base0:
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.long .Ldebug_ranges0-.Lrnglists_table_base0
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.Ldebug_ranges0:
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.byte 6 # DW_RLE_start_end
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.quad func1
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.quad .Lfunc1_end
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.byte 6 # DW_RLE_start_end
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.quad func1.__part.1
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.quad .Lfunc1.__part.1_end
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.byte 0 # DW_RLE_end_of_list
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.Ldebug_list_header_end0:
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