Fix discrepancies in nm's --line-number output by adding support for the DW_AT_specification DWARF Attttribute.

	PR 25676
bfd	* dwarf2.c (struct varinfo): Add unit_offset field to record the
	location of the varinfo in the unit's debug info data.  Change the
	type of the stack field to a boolean.
	(lookup_var_by_offset): New function.  Returns the varinfo
	structure for the variable described at the given offset in the
	unit's debug info.
	(scan_unit_for_symbols): Add support for variables which have the
	DW_AT_specification attribute.

binutils* testsuite/binutils-all/dw4.s: New test source file.
	* testsuite/binutils-all/nm.exp: Run the new test.

2 files changed, 2021 insertions, 0 deletions

diff --git a/binutils/testsuite/binutils-all/dw4.s b/binutils/testsuite/binutils-all/dw4.s
new file mode 100644
index 0000000..f8ef6dc
--- /dev/null
+++ b/binutils/testsuite/binutils-all/dw4.s
@@ -0,0 +1,1974 @@
+	.file	"main.c"
+	.text
+.Ltext0:
+	.text
+	.globl	main
+	.type	main, %function
+main:
+.LFB0:
+	.file 1 "main.c"
+	.loc 1 6 1 view -0
+	.word 1234
+	.word 5678
+.LFE0:
+	.size	main, . - main
+	.globl	g_my_private_global
+	.data
+	.align 4
+	.type	g_my_private_global, %object
+	.size	g_my_private_global, 4
+g_my_private_global:
+	.zero	4
+	.globl	g_my_externd_global
+	.data
+	.align 4
+	.type	g_my_externd_global, %object
+	.size	g_my_externd_global, 4
+g_my_externd_global:
+	.zero	4
+	.text
+.Letext0:
+	.section	.debug_info,"",%progbits
+.Ldebug_info0:
+	.long	.Linfo_end - .Linfo_start
+.Linfo_start:
+	.short	0x4
+	.long	.Ldebug_abbrev0
+	.byte	0x8
+	.uleb128 0x1
+	.long	.LASF345
+	.byte	0xc
+	.long	.LASF346
+	.long	.LASF347
+	.long	.Ldebug_ranges0 + 0
+	.quad	0
+	.long	.Ldebug_line0
+	.long	.Ldebug_macro0
+.Lvar_decl:
+	.uleb128 0x2
+	.long	.LASF343
+	.byte	0x1
+	.byte	0x2
+	.byte	0xc
+	.long	0x39
+	.uleb128 0x3
+	.byte	0x4
+	.byte	0x5
+	.string	"int"
+	.uleb128 0x4
+	.long	.Lvar_decl - .Ldebug_info0
+	.byte	0x3
+	.byte	0x5
+	.uleb128 .Lblock1_end - .Lblock1_start
+.Lblock1_start:
+	.byte	0x3
+	.dc.a	g_my_externd_global
+.Lblock1_end:
+	.uleb128 0x5
+	.long	.LASF344
+	.byte	0x1
+	.byte	0x4
+	.byte	0x5
+	.long	0x39
+	.uleb128 .Lblock2_end - .Lblock2_start
+.Lblock2_start:
+	.byte	0x3
+	.dc.a	g_my_private_global
+.Lblock2_end:
+	.uleb128 0x6
+	.long	.LASF348
+	.byte	0x1
+	.byte	0x5
+	.byte	0x5
+	.long	0x39
+	.quad	0
+	.quad	0x10
+	.uleb128 0x1
+	.byte	0x9c
+	.byte	0
+.Linfo_end:
+	.section	.debug_abbrev,"",%progbits
+.Ldebug_abbrev0:
+	.uleb128 0x1
+	.uleb128 0x11
+	.byte	0x1
+	.uleb128 0x25
+	.uleb128 0xe
+	.uleb128 0x13
+	.uleb128 0xb
+	.uleb128 0x3
+	.uleb128 0xe
+	.uleb128 0x1b
+	.uleb128 0xe
+	.uleb128 0x55
+	.uleb128 0x17
+	.uleb128 0x11
+	.uleb128 0x1
+	.uleb128 0x10
+	.uleb128 0x17
+	.uleb128 0x2119
+	.uleb128 0x17
+	.byte	0
+	.byte	0
+	.uleb128 0x2
+	.uleb128 0x34
+	.byte	0
+	.uleb128 0x3
+	.uleb128 0xe
+	.uleb128 0x3a
+	.uleb128 0xb
+	.uleb128 0x3b
+	.uleb128 0xb
+	.uleb128 0x39
+	.uleb128 0xb
+	.uleb128 0x49
+	.uleb128 0x13
+	.uleb128 0x3f
+	.uleb128 0x19
+	.uleb128 0x3c
+	.uleb128 0x19
+	.byte	0
+	.byte	0
+	.uleb128 0x3
+	.uleb128 0x24
+	.byte	0
+	.uleb128 0xb
+	.uleb128 0xb
+	.uleb128 0x3e
+	.uleb128 0xb
+	.uleb128 0x3
+	.uleb128 0x8
+	.byte	0
+	.byte	0
+	.uleb128 0x4
+	.uleb128 0x34
+	.byte	0
+	.uleb128 0x47
+	.uleb128 0x13
+	.uleb128 0x3b
+	.uleb128 0xb
+	.uleb128 0x39
+	.uleb128 0xb
+	.uleb128 0x2
+	.uleb128 0x18
+	.byte	0
+	.byte	0
+	.uleb128 0x5
+	.uleb128 0x34
+	.byte	0
+	.uleb128 0x3
+	.uleb128 0xe
+	.uleb128 0x3a
+	.uleb128 0xb
+	.uleb128 0x3b
+	.uleb128 0xb
+	.uleb128 0x39
+	.uleb128 0xb
+	.uleb128 0x49
+	.uleb128 0x13
+	.uleb128 0x3f
+	.uleb128 0x19
+	.uleb128 0x2
+	.uleb128 0x18
+	.byte	0
+	.byte	0
+	.uleb128 0x6
+	.uleb128 0x2e
+	.byte	0
+	.uleb128 0x3f
+	.uleb128 0x19
+	.uleb128 0x3
+	.uleb128 0xe
+	.uleb128 0x3a
+	.uleb128 0xb
+	.uleb128 0x3b
+	.uleb128 0xb
+	.uleb128 0x39
+	.uleb128 0xb
+	.uleb128 0x27
+	.uleb128 0x19
+	.uleb128 0x49
+	.uleb128 0x13
+	.uleb128 0x11
+	.uleb128 0x1
+	.uleb128 0x12
+	.uleb128 0x7
+	.uleb128 0x40
+	.uleb128 0x18
+	.uleb128 0x2117
+	.uleb128 0x19
+	.byte	0
+	.byte	0
+	.byte	0
+	.section	.debug_aranges,"",%progbits
+	.long	0x2c
+	.short	0x2
+	.long	.Ldebug_info0
+	.byte	0x8
+	.byte	0
+	.short	0
+	.short	0
+	.dc.a	.LFB0
+	.quad	.LFE0 - .LFB0
+	.quad	0
+	.quad	0
+	.section	.debug_ranges,"",%progbits
+.Ldebug_ranges0:
+	.dc.a	.LFB0
+	.dc.a	.LFE0
+	.quad	0
+	.quad	0
+	.section	.debug_macro,"",%progbits
+.Ldebug_macro0:
+	.short	0x4
+	.byte	0x2
+	.long	.Ldebug_line0
+	.byte	0x3
+	.uleb128 0
+	.uleb128 0x1
+	.byte	0x5
+	.uleb128 0x1
+	.long	.LASF0
+	.byte	0x5
+	.uleb128 0x2
+	.long	.LASF1
+	.byte	0x5
+	.uleb128 0x3
+	.long	.LASF2
+	.byte	0x5
+	.uleb128 0x4
+	.long	.LASF3
+	.byte	0x5
+	.uleb128 0x5
+	.long	.LASF4
+	.byte	0x5
+	.uleb128 0x6
+	.long	.LASF5
+	.byte	0x5
+	.uleb128 0x7
+	.long	.LASF6
+	.byte	0x5
+	.uleb128 0x8
+	.long	.LASF7
+	.byte	0x5
+	.uleb128 0x9
+	.long	.LASF8
+	.byte	0x5
+	.uleb128 0xa
+	.long	.LASF9
+	.byte	0x5
+	.uleb128 0xb
+	.long	.LASF10
+	.byte	0x5
+	.uleb128 0xc
+	.long	.LASF11
+	.byte	0x5
+	.uleb128 0xd
+	.long	.LASF12
+	.byte	0x5
+	.uleb128 0xe
+	.long	.LASF13
+	.byte	0x5
+	.uleb128 0xf
+	.long	.LASF14
+	.byte	0x5
+	.uleb128 0x10
+	.long	.LASF15
+	.byte	0x5
+	.uleb128 0x11
+	.long	.LASF16
+	.byte	0x5
+	.uleb128 0x12
+	.long	.LASF17
+	.byte	0x5
+	.uleb128 0x13
+	.long	.LASF18
+	.byte	0x5
+	.uleb128 0x14
+	.long	.LASF19
+	.byte	0x5
+	.uleb128 0x15
+	.long	.LASF20
+	.byte	0x5
+	.uleb128 0x16
+	.long	.LASF21
+	.byte	0x5
+	.uleb128 0x17
+	.long	.LASF22
+	.byte	0x5
+	.uleb128 0x18
+	.long	.LASF23
+	.byte	0x5
+	.uleb128 0x19
+	.long	.LASF24
+	.byte	0x5
+	.uleb128 0x1a
+	.long	.LASF25
+	.byte	0x5
+	.uleb128 0x1b
+	.long	.LASF26
+	.byte	0x5
+	.uleb128 0x1c
+	.long	.LASF27
+	.byte	0x5
+	.uleb128 0x1d
+	.long	.LASF28
+	.byte	0x5
+	.uleb128 0x1e
+	.long	.LASF29
+	.byte	0x5
+	.uleb128 0x1f
+	.long	.LASF30
+	.byte	0x5
+	.uleb128 0x20
+	.long	.LASF31
+	.byte	0x5
+	.uleb128 0x21
+	.long	.LASF32
+	.byte	0x5
+	.uleb128 0x22
+	.long	.LASF33
+	.byte	0x5
+	.uleb128 0x23
+	.long	.LASF34
+	.byte	0x5
+	.uleb128 0x24
+	.long	.LASF35
+	.byte	0x5
+	.uleb128 0x25
+	.long	.LASF36
+	.byte	0x5
+	.uleb128 0x26
+	.long	.LASF37
+	.byte	0x5
+	.uleb128 0x27
+	.long	.LASF38
+	.byte	0x5
+	.uleb128 0x28
+	.long	.LASF39
+	.byte	0x5
+	.uleb128 0x29
+	.long	.LASF40
+	.byte	0x5
+	.uleb128 0x2a
+	.long	.LASF41
+	.byte	0x5
+	.uleb128 0x2b
+	.long	.LASF42
+	.byte	0x5
+	.uleb128 0x2c
+	.long	.LASF43
+	.byte	0x5
+	.uleb128 0x2d
+	.long	.LASF44
+	.byte	0x5
+	.uleb128 0x2e
+	.long	.LASF45
+	.byte	0x5
+	.uleb128 0x2f
+	.long	.LASF46
+	.byte	0x5
+	.uleb128 0x30
+	.long	.LASF47
+	.byte	0x5
+	.uleb128 0x31
+	.long	.LASF48
+	.byte	0x5
+	.uleb128 0x32
+	.long	.LASF49
+	.byte	0x5
+	.uleb128 0x33
+	.long	.LASF50
+	.byte	0x5
+	.uleb128 0x34
+	.long	.LASF51
+	.byte	0x5
+	.uleb128 0x35
+	.long	.LASF52
+	.byte	0x5
+	.uleb128 0x36
+	.long	.LASF53
+	.byte	0x5
+	.uleb128 0x37
+	.long	.LASF54
+	.byte	0x5
+	.uleb128 0x38
+	.long	.LASF55
+	.byte	0x5
+	.uleb128 0x39
+	.long	.LASF56
+	.byte	0x5
+	.uleb128 0x3a
+	.long	.LASF57
+	.byte	0x5
+	.uleb128 0x3b
+	.long	.LASF58
+	.byte	0x5
+	.uleb128 0x3c
+	.long	.LASF59
+	.byte	0x5
+	.uleb128 0x3d
+	.long	.LASF60
+	.byte	0x5
+	.uleb128 0x3e
+	.long	.LASF61
+	.byte	0x5
+	.uleb128 0x3f
+	.long	.LASF62
+	.byte	0x5
+	.uleb128 0x40
+	.long	.LASF63
+	.byte	0x5
+	.uleb128 0x41
+	.long	.LASF64
+	.byte	0x5
+	.uleb128 0x42
+	.long	.LASF65
+	.byte	0x5
+	.uleb128 0x43
+	.long	.LASF66
+	.byte	0x5
+	.uleb128 0x44
+	.long	.LASF67
+	.byte	0x5
+	.uleb128 0x45
+	.long	.LASF68
+	.byte	0x5
+	.uleb128 0x46
+	.long	.LASF69
+	.byte	0x5
+	.uleb128 0x47
+	.long	.LASF70
+	.byte	0x5
+	.uleb128 0x48
+	.long	.LASF71
+	.byte	0x5
+	.uleb128 0x49
+	.long	.LASF72
+	.byte	0x5
+	.uleb128 0x4a
+	.long	.LASF73
+	.byte	0x5
+	.uleb128 0x4b
+	.long	.LASF74
+	.byte	0x5
+	.uleb128 0x4c
+	.long	.LASF75
+	.byte	0x5
+	.uleb128 0x4d
+	.long	.LASF76
+	.byte	0x5
+	.uleb128 0x4e
+	.long	.LASF77
+	.byte	0x5
+	.uleb128 0x4f
+	.long	.LASF78
+	.byte	0x5
+	.uleb128 0x50
+	.long	.LASF79
+	.byte	0x5
+	.uleb128 0x51
+	.long	.LASF80
+	.byte	0x5
+	.uleb128 0x52
+	.long	.LASF81
+	.byte	0x5
+	.uleb128 0x53
+	.long	.LASF82
+	.byte	0x5
+	.uleb128 0x54
+	.long	.LASF83
+	.byte	0x5
+	.uleb128 0x55
+	.long	.LASF84
+	.byte	0x5
+	.uleb128 0x56
+	.long	.LASF85
+	.byte	0x5
+	.uleb128 0x57
+	.long	.LASF86
+	.byte	0x5
+	.uleb128 0x58
+	.long	.LASF87
+	.byte	0x5
+	.uleb128 0x59
+	.long	.LASF88
+	.byte	0x5
+	.uleb128 0x5a
+	.long	.LASF89
+	.byte	0x5
+	.uleb128 0x5b
+	.long	.LASF90
+	.byte	0x5
+	.uleb128 0x5c
+	.long	.LASF91
+	.byte	0x5
+	.uleb128 0x5d
+	.long	.LASF92
+	.byte	0x5
+	.uleb128 0x5e
+	.long	.LASF93
+	.byte	0x5
+	.uleb128 0x5f
+	.long	.LASF94
+	.byte	0x5
+	.uleb128 0x60
+	.long	.LASF95
+	.byte	0x5
+	.uleb128 0x61
+	.long	.LASF96
+	.byte	0x5
+	.uleb128 0x62
+	.long	.LASF97
+	.byte	0x5
+	.uleb128 0x63
+	.long	.LASF98
+	.byte	0x5
+	.uleb128 0x64
+	.long	.LASF99
+	.byte	0x5
+	.uleb128 0x65
+	.long	.LASF100
+	.byte	0x5
+	.uleb128 0x66
+	.long	.LASF101
+	.byte	0x5
+	.uleb128 0x67
+	.long	.LASF102
+	.byte	0x5
+	.uleb128 0x68
+	.long	.LASF103
+	.byte	0x5
+	.uleb128 0x69
+	.long	.LASF104
+	.byte	0x5
+	.uleb128 0x6a
+	.long	.LASF105
+	.byte	0x5
+	.uleb128 0x6b
+	.long	.LASF106
+	.byte	0x5
+	.uleb128 0x6c
+	.long	.LASF107
+	.byte	0x5
+	.uleb128 0x6d
+	.long	.LASF108
+	.byte	0x5
+	.uleb128 0x6e
+	.long	.LASF109
+	.byte	0x5
+	.uleb128 0x6f
+	.long	.LASF110
+	.byte	0x5
+	.uleb128 0x70
+	.long	.LASF111
+	.byte	0x5
+	.uleb128 0x71
+	.long	.LASF112
+	.byte	0x5
+	.uleb128 0x72
+	.long	.LASF113
+	.byte	0x5
+	.uleb128 0x73
+	.long	.LASF114
+	.byte	0x5
+	.uleb128 0x74
+	.long	.LASF115
+	.byte	0x5
+	.uleb128 0x75
+	.long	.LASF116
+	.byte	0x5
+	.uleb128 0x76
+	.long	.LASF117
+	.byte	0x5
+	.uleb128 0x77
+	.long	.LASF118
+	.byte	0x5
+	.uleb128 0x78
+	.long	.LASF119
+	.byte	0x5
+	.uleb128 0x79
+	.long	.LASF120
+	.byte	0x5
+	.uleb128 0x7a
+	.long	.LASF121
+	.byte	0x5
+	.uleb128 0x7b
+	.long	.LASF122
+	.byte	0x5
+	.uleb128 0x7c
+	.long	.LASF123
+	.byte	0x5
+	.uleb128 0x7d
+	.long	.LASF124
+	.byte	0x5
+	.uleb128 0x7e
+	.long	.LASF125
+	.byte	0x5
+	.uleb128 0x7f
+	.long	.LASF126
+	.byte	0x5
+	.uleb128 0x80
+	.long	.LASF127
+	.byte	0x5
+	.uleb128 0x81
+	.long	.LASF128
+	.byte	0x5
+	.uleb128 0x82
+	.long	.LASF129
+	.byte	0x5
+	.uleb128 0x83
+	.long	.LASF130
+	.byte	0x5
+	.uleb128 0x84
+	.long	.LASF131
+	.byte	0x5
+	.uleb128 0x85
+	.long	.LASF132
+	.byte	0x5
+	.uleb128 0x86
+	.long	.LASF133
+	.byte	0x5
+	.uleb128 0x87
+	.long	.LASF134
+	.byte	0x5
+	.uleb128 0x88
+	.long	.LASF135
+	.byte	0x5
+	.uleb128 0x89
+	.long	.LASF136
+	.byte	0x5
+	.uleb128 0x8a
+	.long	.LASF137
+	.byte	0x5
+	.uleb128 0x8b
+	.long	.LASF138
+	.byte	0x5
+	.uleb128 0x8c
+	.long	.LASF139
+	.byte	0x5
+	.uleb128 0x8d
+	.long	.LASF140
+	.byte	0x5
+	.uleb128 0x8e
+	.long	.LASF141
+	.byte	0x5
+	.uleb128 0x8f
+	.long	.LASF142
+	.byte	0x5
+	.uleb128 0x90
+	.long	.LASF143
+	.byte	0x5
+	.uleb128 0x91
+	.long	.LASF144
+	.byte	0x5
+	.uleb128 0x92
+	.long	.LASF145
+	.byte	0x5
+	.uleb128 0x93
+	.long	.LASF146
+	.byte	0x5
+	.uleb128 0x94
+	.long	.LASF147
+	.byte	0x5
+	.uleb128 0x95
+	.long	.LASF148
+	.byte	0x5
+	.uleb128 0x96
+	.long	.LASF149
+	.byte	0x5
+	.uleb128 0x97
+	.long	.LASF150
+	.byte	0x5
+	.uleb128 0x98
+	.long	.LASF151
+	.byte	0x5
+	.uleb128 0x99
+	.long	.LASF152
+	.byte	0x5
+	.uleb128 0x9a
+	.long	.LASF153
+	.byte	0x5
+	.uleb128 0x9b
+	.long	.LASF154
+	.byte	0x5
+	.uleb128 0x9c
+	.long	.LASF155
+	.byte	0x5
+	.uleb128 0x9d
+	.long	.LASF156
+	.byte	0x5
+	.uleb128 0x9e
+	.long	.LASF157
+	.byte	0x5
+	.uleb128 0x9f
+	.long	.LASF158
+	.byte	0x5
+	.uleb128 0xa0
+	.long	.LASF159
+	.byte	0x5
+	.uleb128 0xa1
+	.long	.LASF160
+	.byte	0x5
+	.uleb128 0xa2
+	.long	.LASF161
+	.byte	0x5
+	.uleb128 0xa3
+	.long	.LASF162
+	.byte	0x5
+	.uleb128 0xa4
+	.long	.LASF163
+	.byte	0x5
+	.uleb128 0xa5
+	.long	.LASF164
+	.byte	0x5
+	.uleb128 0xa6
+	.long	.LASF165
+	.byte	0x5
+	.uleb128 0xa7
+	.long	.LASF166
+	.byte	0x5
+	.uleb128 0xa8
+	.long	.LASF167
+	.byte	0x5
+	.uleb128 0xa9
+	.long	.LASF168
+	.byte	0x5
+	.uleb128 0xaa
+	.long	.LASF169
+	.byte	0x5
+	.uleb128 0xab
+	.long	.LASF170
+	.byte	0x5
+	.uleb128 0xac
+	.long	.LASF171
+	.byte	0x5
+	.uleb128 0xad
+	.long	.LASF172
+	.byte	0x5
+	.uleb128 0xae
+	.long	.LASF173
+	.byte	0x5
+	.uleb128 0xaf
+	.long	.LASF174
+	.byte	0x5
+	.uleb128 0xb0
+	.long	.LASF175
+	.byte	0x5
+	.uleb128 0xb1
+	.long	.LASF176
+	.byte	0x5
+	.uleb128 0xb2
+	.long	.LASF177
+	.byte	0x5
+	.uleb128 0xb3
+	.long	.LASF178
+	.byte	0x5
+	.uleb128 0xb4
+	.long	.LASF179
+	.byte	0x5
+	.uleb128 0xb5
+	.long	.LASF180
+	.byte	0x5
+	.uleb128 0xb6
+	.long	.LASF181
+	.byte	0x5
+	.uleb128 0xb7
+	.long	.LASF182
+	.byte	0x5
+	.uleb128 0xb8
+	.long	.LASF183
+	.byte	0x5
+	.uleb128 0xb9
+	.long	.LASF184
+	.byte	0x5
+	.uleb128 0xba
+	.long	.LASF185
+	.byte	0x5
+	.uleb128 0xbb
+	.long	.LASF186
+	.byte	0x5
+	.uleb128 0xbc
+	.long	.LASF187
+	.byte	0x5
+	.uleb128 0xbd
+	.long	.LASF188
+	.byte	0x5
+	.uleb128 0xbe
+	.long	.LASF189
+	.byte	0x5
+	.uleb128 0xbf
+	.long	.LASF190
+	.byte	0x5
+	.uleb128 0xc0
+	.long	.LASF191
+	.byte	0x5
+	.uleb128 0xc1
+	.long	.LASF192
+	.byte	0x5
+	.uleb128 0xc2
+	.long	.LASF193
+	.byte	0x5
+	.uleb128 0xc3
+	.long	.LASF194
+	.byte	0x5
+	.uleb128 0xc4
+	.long	.LASF195
+	.byte	0x5
+	.uleb128 0xc5
+	.long	.LASF196
+	.byte	0x5
+	.uleb128 0xc6
+	.long	.LASF197
+	.byte	0x5
+	.uleb128 0xc7
+	.long	.LASF198
+	.byte	0x5
+	.uleb128 0xc8
+	.long	.LASF199
+	.byte	0x5
+	.uleb128 0xc9
+	.long	.LASF200
+	.byte	0x5
+	.uleb128 0xca
+	.long	.LASF201
+	.byte	0x5
+	.uleb128 0xcb
+	.long	.LASF202
+	.byte	0x5
+	.uleb128 0xcc
+	.long	.LASF203
+	.byte	0x5
+	.uleb128 0xcd
+	.long	.LASF204
+	.byte	0x5
+	.uleb128 0xce
+	.long	.LASF205
+	.byte	0x5
+	.uleb128 0xcf
+	.long	.LASF206
+	.byte	0x5
+	.uleb128 0xd0
+	.long	.LASF207
+	.byte	0x5
+	.uleb128 0xd1
+	.long	.LASF208
+	.byte	0x5
+	.uleb128 0xd2
+	.long	.LASF209
+	.byte	0x5
+	.uleb128 0xd3
+	.long	.LASF210
+	.byte	0x5
+	.uleb128 0xd4
+	.long	.LASF211
+	.byte	0x5
+	.uleb128 0xd5
+	.long	.LASF212
+	.byte	0x5
+	.uleb128 0xd6
+	.long	.LASF213
+	.byte	0x5
+	.uleb128 0xd7
+	.long	.LASF214
+	.byte	0x5
+	.uleb128 0xd8
+	.long	.LASF215
+	.byte	0x5
+	.uleb128 0xd9
+	.long	.LASF216
+	.byte	0x5
+	.uleb128 0xda
+	.long	.LASF217
+	.byte	0x5
+	.uleb128 0xdb
+	.long	.LASF218
+	.byte	0x5
+	.uleb128 0xdc
+	.long	.LASF219
+	.byte	0x5
+	.uleb128 0xdd
+	.long	.LASF220
+	.byte	0x5
+	.uleb128 0xde
+	.long	.LASF221
+	.byte	0x5
+	.uleb128 0xdf
+	.long	.LASF222
+	.byte	0x5
+	.uleb128 0xe0
+	.long	.LASF223
+	.byte	0x5
+	.uleb128 0xe1
+	.long	.LASF224
+	.byte	0x5
+	.uleb128 0xe2
+	.long	.LASF225
+	.byte	0x5
+	.uleb128 0xe3
+	.long	.LASF226
+	.byte	0x5
+	.uleb128 0xe4
+	.long	.LASF227
+	.byte	0x5
+	.uleb128 0xe5
+	.long	.LASF228
+	.byte	0x5
+	.uleb128 0xe6
+	.long	.LASF229
+	.byte	0x5
+	.uleb128 0xe7
+	.long	.LASF230
+	.byte	0x5
+	.uleb128 0xe8
+	.long	.LASF231
+	.byte	0x5
+	.uleb128 0xe9
+	.long	.LASF232
+	.byte	0x5
+	.uleb128 0xea
+	.long	.LASF233
+	.byte	0x5
+	.uleb128 0xeb
+	.long	.LASF234
+	.byte	0x5
+	.uleb128 0xec
+	.long	.LASF235
+	.byte	0x5
+	.uleb128 0xed
+	.long	.LASF236
+	.byte	0x5
+	.uleb128 0xee
+	.long	.LASF237
+	.byte	0x5
+	.uleb128 0xef
+	.long	.LASF238
+	.byte	0x5
+	.uleb128 0xf0
+	.long	.LASF239
+	.byte	0x5
+	.uleb128 0xf1
+	.long	.LASF240
+	.byte	0x5
+	.uleb128 0xf2
+	.long	.LASF241
+	.byte	0x5
+	.uleb128 0xf3
+	.long	.LASF242
+	.byte	0x5
+	.uleb128 0xf4
+	.long	.LASF243
+	.byte	0x5
+	.uleb128 0xf5
+	.long	.LASF244
+	.byte	0x5
+	.uleb128 0xf6
+	.long	.LASF245
+	.byte	0x5
+	.uleb128 0xf7
+	.long	.LASF246
+	.byte	0x5
+	.uleb128 0xf8
+	.long	.LASF247
+	.byte	0x5
+	.uleb128 0xf9
+	.long	.LASF248
+	.byte	0x5
+	.uleb128 0xfa
+	.long	.LASF249
+	.byte	0x5
+	.uleb128 0xfb
+	.long	.LASF250
+	.byte	0x5
+	.uleb128 0xfc
+	.long	.LASF251
+	.byte	0x5
+	.uleb128 0xfd
+	.long	.LASF252
+	.byte	0x5
+	.uleb128 0xfe
+	.long	.LASF253
+	.byte	0x5
+	.uleb128 0xff
+	.long	.LASF254
+	.byte	0x5
+	.uleb128 0x100
+	.long	.LASF255
+	.byte	0x5
+	.uleb128 0x101
+	.long	.LASF256
+	.byte	0x5
+	.uleb128 0x102
+	.long	.LASF257
+	.byte	0x5
+	.uleb128 0x103
+	.long	.LASF258
+	.byte	0x5
+	.uleb128 0x104
+	.long	.LASF259
+	.byte	0x5
+	.uleb128 0x105
+	.long	.LASF260
+	.byte	0x5
+	.uleb128 0x106
+	.long	.LASF261
+	.byte	0x5
+	.uleb128 0x107
+	.long	.LASF262
+	.byte	0x5
+	.uleb128 0x108
+	.long	.LASF263
+	.byte	0x5
+	.uleb128 0x109
+	.long	.LASF264
+	.byte	0x5
+	.uleb128 0x10a
+	.long	.LASF265
+	.byte	0x5
+	.uleb128 0x10b
+	.long	.LASF266
+	.byte	0x5
+	.uleb128 0x10c
+	.long	.LASF267
+	.byte	0x5
+	.uleb128 0x10d
+	.long	.LASF268
+	.byte	0x5
+	.uleb128 0x10e
+	.long	.LASF269
+	.byte	0x5
+	.uleb128 0x10f
+	.long	.LASF270
+	.byte	0x5
+	.uleb128 0x110
+	.long	.LASF271
+	.byte	0x5
+	.uleb128 0x111
+	.long	.LASF272
+	.byte	0x5
+	.uleb128 0x112
+	.long	.LASF273
+	.byte	0x5
+	.uleb128 0x113
+	.long	.LASF274
+	.byte	0x5
+	.uleb128 0x114
+	.long	.LASF275
+	.byte	0x5
+	.uleb128 0x115
+	.long	.LASF276
+	.byte	0x5
+	.uleb128 0x116
+	.long	.LASF277
+	.byte	0x5
+	.uleb128 0x117
+	.long	.LASF278
+	.byte	0x5
+	.uleb128 0x118
+	.long	.LASF279
+	.byte	0x5
+	.uleb128 0x119
+	.long	.LASF280
+	.byte	0x5
+	.uleb128 0x11a
+	.long	.LASF281
+	.byte	0x5
+	.uleb128 0x11b
+	.long	.LASF282
+	.byte	0x5
+	.uleb128 0x11c
+	.long	.LASF283
+	.byte	0x5
+	.uleb128 0x11d
+	.long	.LASF284
+	.byte	0x5
+	.uleb128 0x11e
+	.long	.LASF285
+	.byte	0x5
+	.uleb128 0x11f
+	.long	.LASF286
+	.byte	0x5
+	.uleb128 0x120
+	.long	.LASF287
+	.byte	0x5
+	.uleb128 0x121
+	.long	.LASF288
+	.byte	0x5
+	.uleb128 0x122
+	.long	.LASF289
+	.byte	0x5
+	.uleb128 0x123
+	.long	.LASF290
+	.byte	0x5
+	.uleb128 0x124
+	.long	.LASF291
+	.byte	0x5
+	.uleb128 0x125
+	.long	.LASF292
+	.byte	0x5
+	.uleb128 0x126
+	.long	.LASF293
+	.byte	0x5
+	.uleb128 0x127
+	.long	.LASF294
+	.byte	0x5
+	.uleb128 0x128
+	.long	.LASF295
+	.byte	0x5
+	.uleb128 0x129
+	.long	.LASF296
+	.byte	0x5
+	.uleb128 0x12a
+	.long	.LASF297
+	.byte	0x5
+	.uleb128 0x12b
+	.long	.LASF298
+	.byte	0x5
+	.uleb128 0x12c
+	.long	.LASF299
+	.byte	0x5
+	.uleb128 0x12d
+	.long	.LASF300
+	.byte	0x5
+	.uleb128 0x12e
+	.long	.LASF301
+	.byte	0x5
+	.uleb128 0x12f
+	.long	.LASF302
+	.byte	0x5
+	.uleb128 0x130
+	.long	.LASF303
+	.byte	0x5
+	.uleb128 0x131
+	.long	.LASF304
+	.byte	0x5
+	.uleb128 0x132
+	.long	.LASF305
+	.byte	0x5
+	.uleb128 0x133
+	.long	.LASF306
+	.byte	0x5
+	.uleb128 0x134
+	.long	.LASF307
+	.byte	0x5
+	.uleb128 0x135
+	.long	.LASF308
+	.byte	0x5
+	.uleb128 0x136
+	.long	.LASF309
+	.byte	0x5
+	.uleb128 0x137
+	.long	.LASF310
+	.byte	0x5
+	.uleb128 0x138
+	.long	.LASF311
+	.byte	0x5
+	.uleb128 0x139
+	.long	.LASF312
+	.byte	0x5
+	.uleb128 0x13a
+	.long	.LASF313
+	.byte	0x5
+	.uleb128 0x13b
+	.long	.LASF314
+	.byte	0x5
+	.uleb128 0x13c
+	.long	.LASF315
+	.byte	0x5
+	.uleb128 0x13d
+	.long	.LASF316
+	.byte	0x5
+	.uleb128 0x13e
+	.long	.LASF317
+	.byte	0x5
+	.uleb128 0x13f
+	.long	.LASF318
+	.byte	0x5
+	.uleb128 0x140
+	.long	.LASF319
+	.byte	0x5
+	.uleb128 0x141
+	.long	.LASF320
+	.byte	0x5
+	.uleb128 0x142
+	.long	.LASF321
+	.byte	0x5
+	.uleb128 0x143
+	.long	.LASF322
+	.byte	0x5
+	.uleb128 0x144
+	.long	.LASF323
+	.byte	0x5
+	.uleb128 0x145
+	.long	.LASF324
+	.byte	0x5
+	.uleb128 0x146
+	.long	.LASF325
+	.byte	0x5
+	.uleb128 0x147
+	.long	.LASF326
+	.byte	0x5
+	.uleb128 0x148
+	.long	.LASF327
+	.byte	0x5
+	.uleb128 0x149
+	.long	.LASF328
+	.byte	0x5
+	.uleb128 0x14a
+	.long	.LASF329
+	.byte	0x5
+	.uleb128 0x14b
+	.long	.LASF330
+	.byte	0x5
+	.uleb128 0x14c
+	.long	.LASF331
+	.byte	0x5
+	.uleb128 0x14d
+	.long	.LASF332
+	.byte	0x5
+	.uleb128 0x14e
+	.long	.LASF333
+	.byte	0x5
+	.uleb128 0x14f
+	.long	.LASF334
+	.byte	0x5
+	.uleb128 0x150
+	.long	.LASF335
+	.byte	0x5
+	.uleb128 0x151
+	.long	.LASF336
+	.byte	0x5
+	.uleb128 0x152
+	.long	.LASF337
+	.byte	0x5
+	.uleb128 0x153
+	.long	.LASF338
+	.file 2 "/usr/include/stdc-predef.h"
+	.byte	0x3
+	.uleb128 0x1f
+	.uleb128 0x2
+	.byte	0x7
+	.long	.Ldebug_macro2
+	.byte	0x4
+	.byte	0x4
+	.byte	0
+	.section	.debug_macro,"G",%progbits,wm4.stdcpredef.h.19.8dc41bed5d9037ff9622e015fb5f0ce3,comdat
+.Ldebug_macro2:
+	.short	0x4
+	.byte	0
+	.byte	0x5
+	.uleb128 0x13
+	.long	.LASF339
+	.byte	0x5
+	.uleb128 0x26
+	.long	.LASF340
+	.byte	0x5
+	.uleb128 0x2e
+	.long	.LASF341
+	.byte	0x5
+	.uleb128 0x3a
+	.long	.LASF342
+	.byte	0
+	.section	.debug_line,"",%progbits
+.Ldebug_line0:
+	.section	.debug_str,"MS",%progbits,1
+.LASF122:
+	.string	"__UINT_LEAST8_MAX__ 0xff"
+.LASF219:
+	.string	"__FLT64_HAS_DENORM__ 1"
+.LASF250:
+	.string	"__FLT64X_MANT_DIG__ 64"
+.LASF2:
+	.string	"__STDC_UTF_16__ 1"
+.LASF252:
+	.string	"__FLT64X_MIN_EXP__ (-16381)"
+.LASF126:
+	.string	"__UINT_LEAST32_MAX__ 0xffffffffU"
+.LASF160:
+	.string	"__FLT_EPSILON__ 1.19209289550781250000000000000000000e-7F"
+.LASF8:
+	.string	"__VERSION__ \"9.2.1 20190827 (Red Hat 9.2.1-1)\""
+.LASF247:
+	.string	"__FLT32X_HAS_DENORM__ 1"
+.LASF334:
+	.string	"__unix 1"
+.LASF70:
+	.string	"__UINTPTR_TYPE__ long unsigned int"
+.LASF35:
+	.string	"__SIZEOF_POINTER__ 8"
+.LASF90:
+	.string	"__WCHAR_WIDTH__ 32"
+.LASF279:
+	.string	"__DEC128_MIN_EXP__ (-6142)"
+.LASF271:
+	.string	"__DEC64_MANT_DIG__ 16"
+.LASF272:
+	.string	"__DEC64_MIN_EXP__ (-382)"
+.LASF173:
+	.string	"__DBL_MIN__ ((double)2.22507385850720138309023271733240406e-308L)"
+.LASF141:
+	.string	"__UINT_FAST64_MAX__ 0xffffffffffffffffUL"
+.LASF335:
+	.string	"__unix__ 1"
+.LASF240:
+	.string	"__FLT32X_MAX_EXP__ 1024"
+.LASF184:
+	.string	"__LDBL_MAX_10_EXP__ 4932"
+.LASF267:
+	.string	"__DEC32_MIN__ 1E-95DF"
+.LASF215:
+	.string	"__FLT64_MAX__ 1.79769313486231570814527423731704357e+308F64"
+.LASF249:
+	.string	"__FLT32X_HAS_QUIET_NAN__ 1"
+.LASF265:
+	.string	"__DEC32_MIN_EXP__ (-94)"
+.LASF234:
+	.string	"__FLT128_HAS_INFINITY__ 1"
+.LASF170:
+	.string	"__DBL_MAX_10_EXP__ 308"
+.LASF216:
+	.string	"__FLT64_MIN__ 2.22507385850720138309023271733240406e-308F64"
+.LASF310:
+	.string	"__amd64 1"
+.LASF188:
+	.string	"__LDBL_MIN__ 3.36210314311209350626267781732175260e-4932L"
+.LASF118:
+	.string	"__INT_LEAST32_WIDTH__ 32"
+.LASF144:
+	.string	"__UINTPTR_MAX__ 0xffffffffffffffffUL"
+.LASF19:
+	.string	"__LP64__ 1"
+.LASF129:
+	.string	"__UINT64_C(c) c ## UL"
+.LASF177:
+	.string	"__DBL_HAS_INFINITY__ 1"
+.LASF1:
+	.string	"__STDC_VERSION__ 201710L"
+.LASF321:
+	.string	"__code_model_small__ 1"
+.LASF239:
+	.string	"__FLT32X_MIN_10_EXP__ (-307)"
+.LASF117:
+	.string	"__INT32_C(c) c"
+.LASF245:
+	.string	"__FLT32X_EPSILON__ 2.22044604925031308084726333618164062e-16F32x"
+.LASF7:
+	.string	"__GNUC_PATCHLEVEL__ 1"
+.LASF261:
+	.string	"__FLT64X_HAS_DENORM__ 1"
+.LASF143:
+	.string	"__INTPTR_WIDTH__ 64"
+.LASF4:
+	.string	"__STDC_HOSTED__ 1"
+.LASF82:
+	.string	"__WINT_MIN__ 0U"
+.LASF148:
+	.string	"__FLT_EVAL_METHOD_TS_18661_3__ 0"
+.LASF190:
+	.string	"__LDBL_DENORM_MIN__ 3.64519953188247460252840593361941982e-4951L"
+.LASF174:
+	.string	"__DBL_EPSILON__ ((double)2.22044604925031308084726333618164062e-16L)"
+.LASF253:
+	.string	"__FLT64X_MIN_10_EXP__ (-4931)"
+.LASF296:
+	.string	"__GCC_ATOMIC_WCHAR_T_LOCK_FREE 2"
+.LASF51:
+	.string	"__UINT32_TYPE__ unsigned int"
+.LASF325:
+	.string	"__FXSR__ 1"
+.LASF221:
+	.string	"__FLT64_HAS_QUIET_NAN__ 1"
+.LASF277:
+	.string	"__DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD"
+.LASF85:
+	.string	"__SCHAR_WIDTH__ 8"
+.LASF189:
+	.string	"__LDBL_EPSILON__ 1.08420217248550443400745280086994171e-19L"
+.LASF165:
+	.string	"__DBL_MANT_DIG__ 53"
+.LASF203:
+	.string	"__FLT32_EPSILON__ 1.19209289550781250000000000000000000e-7F32"
+.LASF204:
+	.string	"__FLT32_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F32"
+.LASF130:
+	.string	"__INT_FAST8_MAX__ 0x7f"
+.LASF178:
+	.string	"__DBL_HAS_QUIET_NAN__ 1"
+.LASF217:
+	.string	"__FLT64_EPSILON__ 2.22044604925031308084726333618164062e-16F64"
+.LASF86:
+	.string	"__SHRT_WIDTH__ 16"
+.LASF266:
+	.string	"__DEC32_MAX_EXP__ 97"
+.LASF47:
+	.string	"__INT32_TYPE__ int"
+.LASF44:
+	.string	"__SIG_ATOMIC_TYPE__ int"
+.LASF273:
+	.string	"__DEC64_MAX_EXP__ 385"
+.LASF167:
+	.string	"__DBL_MIN_EXP__ (-1021)"
+.LASF18:
+	.string	"_LP64 1"
+.LASF115:
+	.string	"__INT_LEAST16_WIDTH__ 16"
+.LASF192:
+	.string	"__LDBL_HAS_INFINITY__ 1"
+.LASF64:
+	.string	"__INT_FAST64_TYPE__ long int"
+.LASF162:
+	.string	"__FLT_HAS_DENORM__ 1"
+.LASF224:
+	.string	"__FLT128_MIN_EXP__ (-16381)"
+.LASF231:
+	.string	"__FLT128_EPSILON__ 1.92592994438723585305597794258492732e-34F128"
+.LASF107:
+	.string	"__UINT16_MAX__ 0xffff"
+.LASF263:
+	.string	"__FLT64X_HAS_QUIET_NAN__ 1"
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diff --git a/binutils/testsuite/binutils-all/nm.exp b/binutils/testsuite/binutils-all/nm.exp
index 17b750c..8964014 100644
--- a/binutils/testsuite/binutils-all/nm.exp
+++ b/binutils/testsuite/binutils-all/nm.exp
@@ -247,6 +247,53 @@ if [is_elf_format] {
 	    remote_file host delete "tmpdir/nm-ver.o"
 	}
     }
+
+    # PR binutils/25676
+    # Test nm --line-numbers on DWARF-4 debug info.    
+    set testname "nm --line-numbers on DWARF-4 debug info"
+
+    # The RISCV target does not (currently) support .uleb128.
+    setup_xfail "riscv*-*-*"
+    # The SH targets complain that the pseudo-ops used to construct
+    # the DWARF data are misaligned.
+    setup_xfail "sh*-*-*"
+    # The pre-compiled dwarf info in dw4.s is not compatible with the
+    # ALPHA, HPPA, IA64 and MIPS targets.
+    setup_xfail "alpha*-*-*" "hppa*-*-*" "ia64*-*-*" "mips*-*-*"
+    # Assembling the source file triggers an ICE in the FT32 assembler.
+    # FIXME: Fix the ICE...
+    setup_xfail "ft32-*-*"
+    # The AVR, MSP430, NDS32, PRU and XTENSA targets do not assemble the
+    # (64-bit) source file.
+    setup_xfail "avr-*-*" "msp430-*-*" "nds32*-*-*" "pru-*-*" "xtensa-*-*"
+    
+    if {![binutils_assemble $srcdir/$subdir/dw4.s tmpdir/dw4.o]} then {
+	fail "$testname (assembly)"
+    } else {
+	# The test source is only intended for 64-bit targets.
+	# FIXME: Create a 32-bit version of this test.
+	if {! [is_elf64 tmpdir/dw4.o]} {
+	    unsupported "$testname (needs a 64-bit target)"
+	} else {
+	    if [is_remote host] {
+		set tmpfile [remote_download host tmpdir/dw4r.o]
+	    } else {
+		set tmpfile tmpdir/dw4.o
+	    }
+
+	    set got [binutils_run $NM "$NMFLAGS --line-numbers $tmpfile"]
+
+	    if {! [regexp "g_my_externd_global.*tests/main.c:3" $got]} then {
+		fail "$testname (grep for externd global file/line)"
+	    } else {
+		pass $testname
+	    }
+	}
+
+	if { $verbose < 1 } {
+	    remote_file host delete $tmpfile
+	}
+    }
 }
 
 # There are certainly other tests that could be run.