5f928ff133
Recently we teached LLD to report line numbers for duplicate variables definitions, though currently LLD is unable to do that for case when strings are not built in .debug_info, but stored in .debug_str instead. That is because out LLDDwarfObj does not handle .debug_str yet. Patch fixes that. Differential revision: https://reviews.llvm.org/D39542 llvm-svn: 318519
161 lines
6.0 KiB
ArmAsm
161 lines
6.0 KiB
ArmAsm
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
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# RUN: llvm-dwarfdump -v %t.o | FileCheck -check-prefix=INPUT %s
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# INPUT: .debug_info contents:
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# INPUT: DW_TAG_variable
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# INPUT-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000027] = "foo")
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# INPUT-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0033 => {0x00000033} "int")
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# INPUT-NEXT: DW_AT_external [DW_FORM_flag_present] (true)
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# INPUT-NEXT: DW_AT_decl_file [DW_FORM_data1] ("/home/path/test.c")
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# INPUT-NEXT: DW_AT_decl_line [DW_FORM_data1] (1)
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# INPUT-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_addr 0x0)
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# INPUT: DW_TAG_variable
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# INPUT-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000002f] = "bar")
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# INPUT-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0033 => {0x00000033} "int")
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# INPUT-NEXT: DW_AT_external [DW_FORM_flag_present] (true)
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# INPUT-NEXT: DW_AT_decl_file [DW_FORM_data1] ("/home/path/test.c")
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# INPUT-NEXT: DW_AT_decl_line [DW_FORM_data1] (2)
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# INPUT-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_addr 0x0)
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## Check we use information from .debug_info in messages.
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# RUN: not ld.lld %t.o %t.o -o %t 2>&1 | FileCheck %s
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# CHECK: duplicate symbol: bar
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# CHECK-NEXT: >>> defined at test.c:2
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# CHECK-NEXT: >>> {{.*}}:(bar)
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# CHECK-NEXT: >>> defined at test.c:2
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# CHECK-NEXT: >>> {{.*}}:(.data+0x0)
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# CHECK: duplicate symbol: foo
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# CHECK-NEXT: >>> defined at test.c:1
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# CHECK-NEXT: >>> {{.*}}:(foo)
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# CHECK-NEXT: >>> defined at test.c:1
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# CHECK-NEXT: >>> {{.*}}:(.bss+0x0)
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# Used reduced output from following code and clang
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# version 6.0.0 (trunk 316661) to produce this input file:
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# Source (test.c):
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# int foo = 0;
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# int bar = 1;
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# Invocation: clang -g -S test.c
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.text
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.file "test.c"
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.file 1 "test.c"
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.type foo,@object
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.bss
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.globl foo
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.p2align 2
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foo:
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.long 0
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.size foo, 4
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.type bar,@object
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.data
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.globl bar
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.p2align 2
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bar:
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.long 1
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.size bar, 4
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.section .debug_str,"MS",@progbits,1
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.Linfo_string0:
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.asciz "clang version 6.0.0"
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.Linfo_string1:
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.asciz "test.c"
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.Linfo_string2:
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.asciz "/home/path/"
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.Linfo_string3:
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.asciz "foo"
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.Linfo_string4:
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.asciz "int"
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.Linfo_string5:
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.asciz "bar"
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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 14 # DW_FORM_strp
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.byte 19 # DW_AT_language
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.byte 5 # DW_FORM_data2
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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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.ascii "\264B" # DW_AT_GNU_pubnames
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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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.byte 2 # Abbreviation Code
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.byte 52 # DW_TAG_variable
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.byte 0 # DW_CHILDREN_no
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 63 # DW_AT_external
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.byte 25 # DW_FORM_flag_present
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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 2 # DW_AT_location
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.byte 24 # DW_FORM_exprloc
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 3 # Abbreviation Code
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.byte 36 # DW_TAG_base_type
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.byte 0 # DW_CHILDREN_no
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 62 # DW_AT_encoding
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.byte 11 # DW_FORM_data1
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.byte 11 # DW_AT_byte_size
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.byte 11 # DW_FORM_data1
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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 76 # Length of Unit
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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:0x45 DW_TAG_compile_unit
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.long .Linfo_string0 # DW_AT_producer
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.short 12 # DW_AT_language
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.long .Linfo_string1 # DW_AT_name
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.long 0 # DW_AT_stmt_list
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.long .Linfo_string2 # DW_AT_comp_dir
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.byte 2 # Abbrev [2] 0x1e:0x15 DW_TAG_variable
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.long .Linfo_string3 # DW_AT_name
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.long 51 # DW_AT_type
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.byte 1 # DW_AT_decl_file
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.byte 1 # DW_AT_decl_line
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.byte 9 # DW_AT_location
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.byte 3
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.quad foo
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.byte 3 # Abbrev [3] 0x33:0x7 DW_TAG_base_type
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.long .Linfo_string4 # DW_AT_name
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.byte 5 # DW_AT_encoding
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.byte 4 # DW_AT_byte_size
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.byte 2 # Abbrev [2] 0x3a:0x15 DW_TAG_variable
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.long .Linfo_string5 # DW_AT_name
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.long 51 # DW_AT_type
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.byte 1 # DW_AT_decl_file
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.byte 2 # DW_AT_decl_line
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.byte 9 # DW_AT_location
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.byte 3
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.quad bar
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.byte 0 # End Of Children Mark
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