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1# REQUIRES: x86
2# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux -dwarf-version=5 %s -o %t.o
3# RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s
4
5# When compiling with -ffunction-sections, .debug_line may contain descriptions
6# of locations from the different text sections. Until relocated such
7# descriptions might contain overlapping offsets. Check LLD is able to report
8# the error locations correctly in this case.
9
10# CHECK:      error: undefined symbol: foo()
11# CHECK-NEXT: >>> referenced by test.cpp:2
12# CHECK-NEXT: >>>               {{.*}}.o:(bar())
13# CHECK-NEXT: >>> referenced by test.cpp:3
14# CHECK-NEXT: >>>               {{.*}}.o:(baz())
15
16# The code below is the reduced version of the output
17# from the following invocation and source:
18#
19# // test.cpp:
20# int foo();
21# int bar() { return foo(); }
22# int baz() { return foo(); }
23#
24# clang -gdwarf-5 -ffunction-sections test.cpp -o test.s -S
25
26.text
27.file  "test.cpp"
28.section  .text._Z3barv,"ax",@progbits
29.globl  _Z3barv
30.type  _Z3barv,@function
31_Z3barv:
32.Lfunc_begin0:
33  .file  0 "/path" "test.cpp" md5 0x9ff11a8404ab4d032ee2dd4f5f8c4140
34  .loc  0 2 0                   # test.cpp:2:0
35  .loc  0 2 20 prologue_end     # test.cpp:2:20
36  callq  _Z3foov
37  .loc  0 2 13 is_stmt 0        # test.cpp:2:13
38.Lfunc_end0:
39.size  _Z3barv, .Lfunc_end0-_Z3barv
40                                        # -- End function
41.section  .text._Z3bazv,"ax",@progbits
42.globl  _Z3bazv                 # -- Begin function _Z3bazv
43  .type  _Z3bazv,@function
44_Z3bazv:                                # @_Z3bazv
45.Lfunc_begin1:
46  .loc  0 3 0 is_stmt 1         # test.cpp:3:0
47  .loc  0 3 20 prologue_end     # test.cpp:3:20
48  callq  _Z3foov
49  .loc  0 3 13 is_stmt 0        # test.cpp:3:13
50.Lfunc_end1:
51  .size  _Z3bazv, .Lfunc_end1-_Z3bazv
52
53.section  .debug_str,"MS",@progbits,1
54.Linfo_string0:
55  .asciz  "stub"
56
57.section  .debug_str_offsets,"",@progbits
58  .long  8
59  .short  5
60  .short  0
61.Lstr_offsets_base0:
62  .long  .Linfo_string0
63
64.section  .debug_abbrev,"",@progbits
65  .byte  1                       # Abbreviation Code
66  .byte  17                      # DW_TAG_compile_unit
67  .byte  1                       # DW_CHILDREN_yes
68  .byte  37                      # DW_AT_producer
69  .byte  37                      # DW_FORM_strx1
70  .byte  19                      # DW_AT_language
71  .byte  5                       # DW_FORM_data2
72  .byte  3                       # DW_AT_name
73  .byte  37                      # DW_FORM_strx1
74  .byte  114                     # DW_AT_str_offsets_base
75  .byte  23                      # DW_FORM_sec_offset
76  .byte  16                      # DW_AT_stmt_list
77  .byte  23                      # DW_FORM_sec_offset
78  .byte  27                      # DW_AT_comp_dir
79  .byte  37                      # DW_FORM_strx1
80  .byte  115                     # DW_AT_addr_base
81  .byte  23                      # DW_FORM_sec_offset
82  .byte  17                      # DW_AT_low_pc
83  .byte  1                       # DW_FORM_addr
84  .byte  85                      # DW_AT_ranges
85  .byte  35                      # DW_FORM_rnglistx
86  .byte  116                     # DW_AT_rnglists_base
87  .byte  23                      # DW_FORM_sec_offset
88  .byte  0                       # EOM(1)
89  .byte  0                       # EOM(2)
90  .byte  2                       # Abbreviation Code
91  .byte  46                      # DW_TAG_subprogram
92  .byte  0                       # DW_CHILDREN_no
93  .byte  17                      # DW_AT_low_pc
94  .byte  27                      # DW_FORM_addrx
95  .byte  18                      # DW_AT_high_pc
96  .byte  6                       # DW_FORM_data4
97  .byte  64                      # DW_AT_frame_base
98  .byte  24                      # DW_FORM_exprloc
99  .byte  110                     # DW_AT_linkage_name
100  .byte  37                      # DW_FORM_strx1
101  .byte  3                       # DW_AT_name
102  .byte  37                      # DW_FORM_strx1
103  .byte  58                      # DW_AT_decl_file
104  .byte  11                      # DW_FORM_data1
105  .byte  59                      # DW_AT_decl_line
106  .byte  11                      # DW_FORM_data1
107  .byte  73                      # DW_AT_type
108  .byte  19                      # DW_FORM_ref4
109  .byte  63                      # DW_AT_external
110  .byte  25                      # DW_FORM_flag_present
111  .byte  0                       # EOM(1)
112  .byte  0                       # EOM(2)
113  .byte  3                       # Abbreviation Code
114  .byte  36                      # DW_TAG_base_type
115  .byte  0                       # DW_CHILDREN_no
116  .byte  3                       # DW_AT_name
117  .byte  37                      # DW_FORM_strx1
118  .byte  62                      # DW_AT_encoding
119  .byte  11                      # DW_FORM_data1
120  .byte  11                      # DW_AT_byte_size
121  .byte  11                      # DW_FORM_data1
122  .byte  0                       # EOM(1)
123  .byte  0                       # EOM(2)
124  .byte  0                       # EOM(3)
125
126.section  .debug_info,"",@progbits
127.Lcu_begin0:
128  .long  .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
129.Ldebug_info_start0:
130  .short  5                       # DWARF version number
131  .byte  1                       # DWARF Unit Type
132  .byte  8                       # Address Size (in bytes)
133  .long  .debug_abbrev           # Offset Into Abbrev. Section
134  .byte  1                       # Abbrev [1] 0xc:0x44 DW_TAG_compile_unit
135  .byte  0                       # DW_AT_producer
136  .short  4                       # DW_AT_language
137  .byte  0                       # DW_AT_name
138  .long  .Lstr_offsets_base0     # DW_AT_str_offsets_base
139  .long  .Lline_table_start0     # DW_AT_stmt_list
140  .byte  2                       # DW_AT_comp_dir
141  .long  0      # DW_AT_addr_base
142  .quad  0                       # DW_AT_low_pc
143  .byte  0                       # DW_AT_ranges
144  .long  0  # DW_AT_rnglists_base
145  .byte  2                       # Abbrev [2] 0x2b:0x10 DW_TAG_subprogram
146  .byte  0                       # DW_AT_low_pc
147  .long  .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
148  .byte  1                       # DW_AT_frame_base
149  .byte  86
150  .byte  3                       # DW_AT_linkage_name
151  .byte  0                       # DW_AT_name
152  .byte  1                       # DW_AT_decl_file
153  .byte  2                       # DW_AT_decl_line
154  .long  75                      # DW_AT_type
155                                        # DW_AT_external
156  .byte  2                       # Abbrev [2] 0x3b:0x10 DW_TAG_subprogram
157  .byte  1                       # DW_AT_low_pc
158  .long  .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
159  .byte  1                       # DW_AT_frame_base
160  .byte  86
161  .byte  6                       # DW_AT_linkage_name
162  .byte  0                       # DW_AT_name
163  .byte  1                       # DW_AT_decl_file
164  .byte  3                       # DW_AT_decl_line
165  .long  75                      # DW_AT_type
166                                        # DW_AT_external
167  .byte  3                       # Abbrev [3] 0x4b:0x4 DW_TAG_base_type
168  .byte  0                       # DW_AT_name
169  .byte  5                       # DW_AT_encoding
170  .byte  4                       # DW_AT_byte_size
171  .byte  0                       # End Of Children Mark
172.Ldebug_info_end0:
173
174.section  .debug_line,"",@progbits
175.Lline_table_start0:
176