# This tests a bug where we would incorrectly parse the size of an array if that # size happened to match an existing DIE offset. This happened because we # misinterpreted that value as a reference to a DIE specifying the VLA size even # though the form was a data form (as it should be). # REQUIRES: lld, x86 # RUN: llvm-mc -triple x86_64-pc-linux %s -filetype=obj > %t.o # RUN: ld.lld %t.o -o %t # RUN: lldb-test symbols %t | FileCheck %s # CHECK: Variable{0x7fffffff0000001e}, name = "X" # CHECK-SAME: type = {7fffffff00000033} 0x{{[0-9A-F]*}} (char [56]) # Generated from "char X[47];" # The array size was modified by hand. .text .file "-" .file 1 "/tmp" "" .type X,@object # @X .comm X,63,16 .section .debug_str,"MS",@progbits,1 .Linfo_string0: .asciz "clang version 8.0.0 (trunk 349604) (llvm/trunk 349608)" # string offset=0 .Linfo_string1: .asciz "-" # string offset=55 .Linfo_string2: .asciz "/tmp" # string offset=57 .Linfo_string3: .asciz "X" # string offset=62 .Linfo_string4: .asciz "char" # string offset=64 .Linfo_string5: .asciz "__ARRAY_SIZE_TYPE__" # string offset=69 .section .debug_abbrev,"",@progbits .byte 1 # Abbreviation Code .byte 17 # DW_TAG_compile_unit .byte 1 # DW_CHILDREN_yes .byte 37 # DW_AT_producer .byte 14 # DW_FORM_strp .byte 19 # DW_AT_language .byte 5 # DW_FORM_data2 .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 16 # DW_AT_stmt_list .byte 23 # DW_FORM_sec_offset .byte 27 # DW_AT_comp_dir .byte 14 # DW_FORM_strp .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 2 # Abbreviation Code .byte 52 # DW_TAG_variable .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 63 # DW_AT_external .byte 25 # DW_FORM_flag_present .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 2 # DW_AT_location .byte 24 # DW_FORM_exprloc .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 3 # Abbreviation Code .byte 1 # DW_TAG_array_type .byte 1 # DW_CHILDREN_yes .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 4 # Abbreviation Code .byte 33 # DW_TAG_subrange_type .byte 0 # DW_CHILDREN_no .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 55 # DW_AT_count .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 5 # Abbreviation Code .byte 36 # DW_TAG_base_type .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 62 # DW_AT_encoding .byte 11 # DW_FORM_data1 .byte 11 # DW_AT_byte_size .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 6 # Abbreviation Code .byte 36 # DW_TAG_base_type .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 11 # DW_AT_byte_size .byte 11 # DW_FORM_data1 .byte 62 # DW_AT_encoding .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 0 # EOM(3) .section .debug_info,"",@progbits .Lcu_begin0: .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit .Ldebug_info_start0: .short 4 # DWARF version number .long .debug_abbrev # Offset Into Abbrev. Section .byte 8 # Address Size (in bytes) .byte 1 # Abbrev [1] 0xb:0x43 DW_TAG_compile_unit .long .Linfo_string0 # DW_AT_producer .short 12 # DW_AT_language .long .Linfo_string1 # DW_AT_name .long 0 # DW_AT_stmt_list .long .Linfo_string2 # DW_AT_comp_dir .byte 2 # Abbrev [2] 0x1e:0x15 DW_TAG_variable .long .Linfo_string3 # DW_AT_name .long 51 # DW_AT_type # DW_AT_external .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .byte 9 # DW_AT_location .byte 3 .quad X .byte 3 # Abbrev [3] 0x33:0xc DW_TAG_array_type .long 63 # DW_AT_type .Ldie: .byte 4 # Abbrev [4] 0x38:0x6 DW_TAG_subrange_type .long 70 # DW_AT_type .byte .Ldie-.Lcu_begin0 # DW_AT_count - should match the offset of an existing die .byte 0 # End Of Children Mark .byte 5 # Abbrev [5] 0x3f:0x7 DW_TAG_base_type .long .Linfo_string4 # DW_AT_name .byte 6 # DW_AT_encoding .byte 1 # DW_AT_byte_size .byte 6 # Abbrev [6] 0x46:0x7 DW_TAG_base_type .long .Linfo_string5 # DW_AT_name .byte 8 # DW_AT_byte_size .byte 7 # DW_AT_encoding .byte 0 # End Of Children Mark .Ldebug_info_end0: