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89642abc65
This patch adds half a dozen new tests that test various edge cases in the behaviour of the symbolizer and DWARF data parsing. All of them test the current behaviour. Reviewed by: JDevlieghere, aprantl Differential Revision: https://reviews.llvm.org/D57741 llvm-svn: 353286
163 lines
6.6 KiB
ArmAsm
163 lines
6.6 KiB
ArmAsm
# Show that multiple CUs can have a single common .debug_abbrev table. This can
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# occur due to e.g. LTO.
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# REQUIRES: x86-registered-target
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# RUN: llvm-mc --filetype=obj --triple=x86_64-pc-linux %s -o %t.o
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# RUN: llvm-symbolizer --obj=%t.o 0 16 --functions=short | FileCheck %s
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# CHECK: foo
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# CHECK-NEXT: foo.c:1:0
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# CHECK: bar
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# CHECK-NEXT: bar.c:2:0
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.global foo
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.type foo,@function
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foo:
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.Lfunc_begin0:
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.file 1 "." "foo.c"
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.loc 1 1 0
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ret
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.Lfunc_end0:
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.global bar
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.p2align 4, 0x90
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.type bar,@function
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bar:
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.Lfunc_begin1:
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.file 2 "." "bar.c"
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.loc 2 2 0
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ret
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.Lfunc_end1:
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.section .debug_str,"MS",@progbits,1
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.Linfo_string1:
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.asciz "foo.c"
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.Linfo_string2:
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.asciz "."
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.Linfo_string3:
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.asciz "foo"
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.Linfo_string4:
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.asciz "bar.c"
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.Linfo_string5:
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.asciz "bar"
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# Regular .debug_abbrev section with CU and subprogram, but duplicated, with second
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# half reordered slightly, to show that the correct abbrev is being referenced.
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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 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 16 # DW_AT_stmt_list
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.byte 23 # DW_FORM_sec_offset
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.byte 27 # DW_AT_comp_dir
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.byte 14 # DW_FORM_strp
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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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 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 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 63 # DW_AT_external
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.byte 25 # DW_FORM_flag_present
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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# Second-half starts here.
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.byte 3 # 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 16 # DW_AT_stmt_list
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.byte 23 # DW_FORM_sec_offset
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.byte 27 # DW_AT_comp_dir
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.byte 14 # DW_FORM_strp
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 4 # 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 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 63 # DW_AT_external
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.byte 25 # DW_FORM_flag_present
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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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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# First CU table.
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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 4 # DWARF version number
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 1 # Abbrev [1] 0xb:0x35 DW_TAG_compile_unit
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.long .Linfo_string1 # DW_AT_name
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.long .Lline_table_start0 # DW_AT_stmt_list
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.long .Linfo_string2 # DW_AT_comp_dir
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
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.byte 2 # Abbrev [2] 0x2a:0x15 DW_TAG_subprogram
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
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.long .Linfo_string3 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 1 # DW_AT_decl_line
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# DW_AT_external
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.byte 0 # End Of Children Mark
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.Ldebug_info_end0:
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# Second CU table.
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.long .Ldebug_info_end1-.Ldebug_info_start1 # Length of Unit
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.Ldebug_info_start1:
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.short 4 # DWARF version number
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 3 # Abbrev [1] 0xb:0x35 DW_TAG_compile_unit
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.long .Lline_table_start0 # DW_AT_stmt_list
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.long .Linfo_string2 # DW_AT_comp_dir
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.quad .Lfunc_begin1 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
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.long .Linfo_string4 # DW_AT_name
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.byte 4 # Abbrev [2] 0x2a:0x15 DW_TAG_subprogram
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.quad .Lfunc_begin1 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
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.byte 1 # DW_AT_decl_file
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.byte 1 # DW_AT_decl_line
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# DW_AT_external
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.long .Linfo_string5 # DW_AT_name
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.byte 0 # End Of Children Mark
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.Ldebug_info_end1:
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.section .debug_line,"",@progbits
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.Lline_table_start0:
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