Hi Ian,
I did you told, but I could not find --debug=all option for readelf.
However, there is --debug --all option with readelf. I am attaching the
output below:
-bash-3.2$ /opt/csw/bin/greadelf --debug --all /b001/_cgo_.o
ELF Header:
Magic: 7f 45 4c 46 01 02 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2's complement, big endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: REL (Relocatable file)
Machine: Sparc
Version: 0x1
Entry point address: 0x0
Start of program headers: 0 (bytes into file)
Start of section headers: 2000 (bytes into file)
Flags: 0x0
Size of this header: 52 (bytes)
Size of program headers: 0 (bytes)
Number of program headers: 0
Size of section headers: 40 (bytes)
Number of section headers: 20
Section header string table index: 17
Section Headers:
[Nr] Name Type Addr Off Size ES Flg Lk
Inf Al
[ 0] NULL 00000000 000000 000000 00 0
0 0
[ 1] .text PROGBITS 00000000 000034 000014 00 AX 0
0 4
[ 2] .rela.text RELA 00000000 000c4c 000024 0c 18
1 4
[ 3] .data PROGBITS 00000000 000048 000020 00 WA 0
0 8
[ 4] .bss NOBITS 00000000 000068 000000 00 WA 0
0 1
[ 5] .rodata.str1.8 PROGBITS 00000000 000068 000010 01 AMS 0
0 8
[ 6] .debug_frame PROGBITS 00000000 000078 000020 00 0
0 4
[ 7] .rela.debug_frame RELA 00000000 000c70 000018 0c 18
6 4
[ 8] .debug_info PROGBITS 00000000 000098 000290 00 0
0 1
[ 9] .rela.debug_info RELA 00000000 000c88 000240 0c 18
8 4
[10] .debug_abbrev PROGBITS 00000000 000328 00011d 00 0
0 1
[11] .debug_aranges PROGBITS 00000000 000445 000020 00 0
0 1
[12] .rela.debug_arang RELA 00000000 000ec8 000018 0c 18
11 4
[13] .debug_line PROGBITS 00000000 000465 000128 00 0
0 1
[14] .rela.debug_line RELA 00000000 000ee0 00000c 0c 18
13 4
[15] .debug_str PROGBITS 00000000 00058d 00017c 01 MS 0
0 1
[16] .comment PROGBITS 00000000 000709 00001b 01 MS 0
0 1
[17] .shstrtab STRTAB 00000000 000724 0000aa 00 0
0 1
[18] .symtab SYMTAB 00000000 000af0 000120 10 19
13 4
[19] .strtab STRTAB 00000000 000c10 000039 00 0
0 1
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings)
I (info), L (link order), G (group), T (TLS), E (exclude), x (unknown)
O (extra OS processing required) o (OS specific), p (processor specific)
There are no section groups in this file.
There are no program headers in this file.
Relocation section '.rela.text' at offset 0xc4c contains 3 entries:
Offset Info Type Sym.Value Sym. Name + Addend
00000000 00000509 R_SPARC_HI22 00000000 .rodata.str1.8 + 0
00000004 0000050c R_SPARC_LO10 00000000 .rodata.str1.8 + 0
0000000c 00000e07 R_SPARC_WDISP30 00000000 printf + 0
Relocation section '.rela.debug_frame' at offset 0xc70 contains 2 entries:
Offset Info Type Sym.Value Sym. Name + Addend
00000014 00000617 R_SPARC_UA32 00000000 .debug_frame + 0
00000018 00000217 R_SPARC_UA32 00000000 .text + 0
Relocation section '.rela.debug_info' at offset 0xc88 contains 48 entries:
Offset Info Type Sym.Value Sym. Name + Addend
00000006 00000817 R_SPARC_UA32 00000000 .debug_abbrev + 0
0000000c 00000b17 R_SPARC_UA32 00000000 .debug_str + 45
00000011 00000b17 R_SPARC_UA32 00000000 .debug_str + 10b
00000015 00000217 R_SPARC_UA32 00000000 .text + 0
00000019 00000217 R_SPARC_UA32 00000000 .text + 14
0000001d 00000a17 R_SPARC_UA32 00000000 .debug_line + 0
0000002b 00000b17 R_SPARC_UA32 00000000 .debug_str + e3
00000032 00000b17 R_SPARC_UA32 00000000 .debug_str + 13f
00000039 00000b17 R_SPARC_UA32 00000000 .debug_str + 121
00000040 00000b17 R_SPARC_UA32 00000000 .debug_str + 14d
00000047 00000b17 R_SPARC_UA32 00000000 .debug_str + 100
00000052 00000b17 R_SPARC_UA32 00000000 .debug_str + 1f
0000005e 00000b17 R_SPARC_UA32 00000000 .debug_str + 1f
0000006b 00000b17 R_SPARC_UA32 00000000 .debug_str + 148
0000007a 00000b17 R_SPARC_UA32 00000000 .debug_str + de
00000089 00000b17 R_SPARC_UA32 00000000 .debug_str + 162
00000098 00000b17 R_SPARC_UA32 00000000 .debug_str + 2c
000000a7 00000b17 R_SPARC_UA32 00000000 .debug_str + 105
000000b6 00000b17 R_SPARC_UA32 00000000 .debug_str + 88
000000c8 00000b17 R_SPARC_UA32 00000000 .debug_str + 96
000000da 00000b17 R_SPARC_UA32 00000000 .debug_str + bc
000000ec 00000b17 R_SPARC_UA32 00000000 .debug_str + 0
000000fe 00000b17 R_SPARC_UA32 00000000 .debug_str + 168
00000110 00000b17 R_SPARC_UA32 00000000 .debug_str + f7
0000012b 00000b17 R_SPARC_UA32 00000000 .debug_str + ae
00000130 00000b17 R_SPARC_UA32 00000000 .debug_str + 40
0000014c 00000b17 R_SPARC_UA32 00000000 .debug_str + 26
00000165 00000b17 R_SPARC_UA32 00000000 .debug_str + 175
00000173 00000b17 R_SPARC_UA32 00000000 .debug_str + 32
0000018c 00000b17 R_SPARC_UA32 00000000 .debug_str + 7d
0000019a 00000b17 R_SPARC_UA32 00000000 .debug_str + 159
000001ae 00000b17 R_SPARC_UA32 00000000 .debug_str + f0
000001bd 00000b17 R_SPARC_UA32 00000000 .debug_str + a7
000001cc 00000b17 R_SPARC_UA32 00000000 .debug_str + 39
000001db 00000b17 R_SPARC_UA32 00000000 .debug_str + 76
000001f1 00000b17 R_SPARC_UA32 00000000 .debug_str + 136
000001ff 00001117 R_SPARC_UA32 00000004 __cgo__0 + 0
0000021a 00000b17 R_SPARC_UA32 00000000 .debug_str + ce
00000228 00001017 R_SPARC_UA32 00000010 __cgodebug_ints + 0
0000023f 00000b17 R_SPARC_UA32 00000000 .debug_str + c7
00000244 00000b17 R_SPARC_UA32 00000000 .debug_str + d
00000252 00000f17 R_SPARC_UA32 00000000 __cgodebug_floats + 0
00000258 00000b17 R_SPARC_UA32 00000000 .debug_str + a1
0000025f 00000217 R_SPARC_UA32 00000000 .text + 0
00000263 00000217 R_SPARC_UA32 00000000 .text + 14
00000270 00000217 R_SPARC_UA32 00000000 .text + 14
00000284 00000b17 R_SPARC_UA32 00000000 .debug_str + 12f
00000288 00000b17 R_SPARC_UA32 00000000 .debug_str + 12f
Relocation section '.rela.debug_aranges' at offset 0xec8 contains 2 entries:
Offset Info Type Sym.Value Sym. Name + Addend
00000006 00000717 R_SPARC_UA32 00000000 .debug_info + 0
00000010 00000217 R_SPARC_UA32 00000000 .text + 0
Relocation section '.rela.debug_line' at offset 0xee0 contains 1 entries:
Offset Info Type Sym.Value Sym. Name + Addend
0000011b 00000217 R_SPARC_UA32 00000000 .text + 0
The decoding of unwind sections for machine type Sparc is not currently
supported.
Symbol table '.symtab' contains 18 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 00000000 0 NOTYPE LOCAL DEFAULT UND
1: 00000000 0 FILE LOCAL DEFAULT ABS
2: 00000000 0 SECTION LOCAL DEFAULT 1
3: 00000000 0 SECTION LOCAL DEFAULT 3
4: 00000000 0 SECTION LOCAL DEFAULT 4
5: 00000000 0 SECTION LOCAL DEFAULT 5
6: 00000000 0 SECTION LOCAL DEFAULT 6
7: 00000000 0 SECTION LOCAL DEFAULT 8
8: 00000000 0 SECTION LOCAL DEFAULT 10
9: 00000000 0 SECTION LOCAL DEFAULT 11
10: 00000000 0 SECTION LOCAL DEFAULT 13
11: 00000000 0 SECTION LOCAL DEFAULT 15
12: 00000000 0 SECTION LOCAL DEFAULT 16
13: 00000000 20 FUNC GLOBAL DEFAULT 1 testc
14: 00000000 0 NOTYPE GLOBAL DEFAULT UND printf
15: 00000000 16 OBJECT GLOBAL DEFAULT 3 __cgodebug_floats
16: 00000010 16 OBJECT GLOBAL DEFAULT 3 __cgodebug_ints
17: 00000004 4 OBJECT GLOBAL DEFAULT COM __cgo__0
No version information found in this file.
Contents of the .debug_frame section:
00000000 0000000c ffffffff CIE
Version: 1
Augmentation: ""
Code alignment factor: 1
Data alignment factor: -4
Return address column: 15
DW_CFA_def_cfa: r14 ofs 0
00000010 0000000c 00000000 FDE cie=00000000 pc=00000000..00000014
Contents of the .debug_info section:
Compilation Unit @ offset 0x0:
Length: 0x28c (32-bit)
Version: 2
Abbrev Offset: 0x0
Pointer Size: 4
<0><b>: Abbrev Number: 1 (DW_TAG_compile_unit)
<c> DW_AT_producer : (indirect string, offset: 0x45): GNU C17
8.2.1 20180814 -mcpu=v9 -gdwarf-2 -g -O2
<10> DW_AT_language : 12 (ANSI C99)
<11> DW_AT_comp_dir : (indirect string, offset: 0x10b):
/export/home/amandeep
<15> DW_AT_low_pc : 0x0
<19> DW_AT_high_pc : 0x14
<1d> DW_AT_stmt_list : 0x0
<1><21>: Abbrev Number: 2 (DW_TAG_base_type)
<22> DW_AT_byte_size : 4
<23> DW_AT_encoding : 5 (signed)
<24> DW_AT_name : int
<1><28>: Abbrev Number: 3 (DW_TAG_base_type)
<29> DW_AT_byte_size : 4
<2a> DW_AT_encoding : 7 (unsigned)
<2b> DW_AT_name : (indirect string, offset: 0xe3): unsigned
int
<1><2f>: Abbrev Number: 3 (DW_TAG_base_type)
<30> DW_AT_byte_size : 4
<31> DW_AT_encoding : 5 (signed)
<32> DW_AT_name : (indirect string, offset: 0x13f): long int
<1><36>: Abbrev Number: 3 (DW_TAG_base_type)
<37> DW_AT_byte_size : 8
<38> DW_AT_encoding : 5 (signed)
<39> DW_AT_name : (indirect string, offset: 0x121): long long
int
<1><3d>: Abbrev Number: 3 (DW_TAG_base_type)
<3e> DW_AT_byte_size : 16
<3f> DW_AT_encoding : 4 (float)
<40> DW_AT_name : (indirect string, offset: 0x14d): long
double
<1><44>: Abbrev Number: 3 (DW_TAG_base_type)
<45> DW_AT_byte_size : 1
<46> DW_AT_encoding : 6 (signed char)
<47> DW_AT_name : (indirect string, offset: 0x100): char
<1><4b>: Abbrev Number: 4 (DW_TAG_pointer_type)
<4c> DW_AT_byte_size : 4
<4d> DW_AT_type : <0x44>
<1><51>: Abbrev Number: 5 (DW_TAG_typedef)
<52> DW_AT_name : (indirect string, offset: 0x1f): __FILE
<56> DW_AT_decl_file : 3
<57> DW_AT_decl_line : 21
<58> DW_AT_decl_column : 27
<59> DW_AT_type : <0x5d>
<1><5d>: Abbrev Number: 6 (DW_TAG_structure_type)
<5e> DW_AT_name : (indirect string, offset: 0x1f): __FILE
<62> DW_AT_byte_size : 16
<63> DW_AT_decl_file : 2
<64> DW_AT_decl_line : 29
<65> DW_AT_decl_column : 8
<66> DW_AT_sibling : <0x122>
<2><6a>: Abbrev Number: 7 (DW_TAG_member)
<6b> DW_AT_name : (indirect string, offset: 0x148): _cnt
<6f> DW_AT_decl_file : 2
<70> DW_AT_decl_line : 35
<71> DW_AT_decl_column : 7
<72> DW_AT_type : <0x21>
<76> DW_AT_data_member_location: 2 byte block: 23 0
(DW_OP_plus_uconst: 0)
<2><79>: Abbrev Number: 7 (DW_TAG_member)
<7a> DW_AT_name : (indirect string, offset: 0xde): _ptr
<7e> DW_AT_decl_file : 2
<7f> DW_AT_decl_line : 36
<80> DW_AT_decl_column : 17
<81> DW_AT_type : <0x122>
<85> DW_AT_data_member_location: 2 byte block: 23 4
(DW_OP_plus_uconst: 4)
<2><88>: Abbrev Number: 7 (DW_TAG_member)
<89> DW_AT_name : (indirect string, offset: 0x162): _base
<8d> DW_AT_decl_file : 2
<8e> DW_AT_decl_line : 38
<8f> DW_AT_decl_column : 17
<90> DW_AT_type : <0x122>
<94> DW_AT_data_member_location: 2 byte block: 23 8
(DW_OP_plus_uconst: 8)
<2><97>: Abbrev Number: 7 (DW_TAG_member)
<98> DW_AT_name : (indirect string, offset: 0x2c): _flag
<9c> DW_AT_decl_file : 2
<9d> DW_AT_decl_line : 39
<9e> DW_AT_decl_column : 16
<9f> DW_AT_type : <0x128>
<a3> DW_AT_data_member_location: 2 byte block: 23 c
(DW_OP_plus_uconst: 12)
<2><a6>: Abbrev Number: 7 (DW_TAG_member)
<a7> DW_AT_name : (indirect string, offset: 0x105): _file
<ab> DW_AT_decl_file : 2
<ac> DW_AT_decl_line : 40
<ad> DW_AT_decl_column : 16
<ae> DW_AT_type : <0x128>
<b2> DW_AT_data_member_location: 2 byte block: 23 d
(DW_OP_plus_uconst: 13)
<2><b5>: Abbrev Number: 8 (DW_TAG_member)
<b6> DW_AT_name : (indirect string, offset: 0x88):
__orientation
<ba> DW_AT_decl_file : 2
<bb> DW_AT_decl_line : 42
<bc> DW_AT_decl_column : 11
<bd> DW_AT_type : <0x28>
<c1> DW_AT_byte_size : 4
<c2> DW_AT_bit_size : 2
<c3> DW_AT_bit_offset : 16
<c4> DW_AT_data_member_location: 2 byte block: 23 c
(DW_OP_plus_uconst: 12)
<2><c7>: Abbrev Number: 8 (DW_TAG_member)
<c8> DW_AT_name : (indirect string, offset: 0x96): __ionolock
<cc> DW_AT_decl_file : 2
<cd> DW_AT_decl_line : 43
<ce> DW_AT_decl_column : 11
<cf> DW_AT_type : <0x28>
<d3> DW_AT_byte_size : 4
<d4> DW_AT_bit_size : 1
<d5> DW_AT_bit_offset : 18
<d6> DW_AT_data_member_location: 2 byte block: 23 c
(DW_OP_plus_uconst: 12)
<2><d9>: Abbrev Number: 8 (DW_TAG_member)
<da> DW_AT_name : (indirect string, offset: 0xbc): __seekable
<de> DW_AT_decl_file : 2
<df> DW_AT_decl_line : 44
<e0> DW_AT_decl_column : 11
<e1> DW_AT_type : <0x28>
<e5> DW_AT_byte_size : 4
<e6> DW_AT_bit_size : 1
<e7> DW_AT_bit_offset : 19
<e8> DW_AT_data_member_location: 2 byte block: 23 c
(DW_OP_plus_uconst: 12)
<2><eb>: Abbrev Number: 8 (DW_TAG_member)
<ec> DW_AT_name : (indirect string, offset: 0x0):
__extendedfd
<f0> DW_AT_decl_file : 2
<f1> DW_AT_decl_line : 45
<f2> DW_AT_decl_column : 11
<f3> DW_AT_type : <0x28>
<f7> DW_AT_byte_size : 4
<f8> DW_AT_bit_size : 1
<f9> DW_AT_bit_offset : 20
<fa> DW_AT_data_member_location: 2 byte block: 23 c
(DW_OP_plus_uconst: 12)
<2><fd>: Abbrev Number: 8 (DW_TAG_member)
<fe> DW_AT_name : (indirect string, offset: 0x168):
__xf_nocheck
<102> DW_AT_decl_file : 2
<103> DW_AT_decl_line : 46
<104> DW_AT_decl_column : 11
<105> DW_AT_type : <0x28>
<109> DW_AT_byte_size : 4
<10a> DW_AT_bit_size : 1
<10b> DW_AT_bit_offset : 21
<10c> DW_AT_data_member_location: 2 byte block: 23 c
(DW_OP_plus_uconst: 12)
<2><10f>: Abbrev Number: 8 (DW_TAG_member)
<110> DW_AT_name : (indirect string, offset: 0xf7): __filler
<114> DW_AT_decl_file : 2
<115> DW_AT_decl_line : 47
<116> DW_AT_decl_column : 11
<117> DW_AT_type : <0x28>
<11b> DW_AT_byte_size : 4
<11c> DW_AT_bit_size : 10
<11d> DW_AT_bit_offset : 22
<11e> DW_AT_data_member_location: 2 byte block: 23 c
(DW_OP_plus_uconst: 12)
<2><121>: Abbrev Number: 0
<1><122>: Abbrev Number: 4 (DW_TAG_pointer_type)
<123> DW_AT_byte_size : 4
<124> DW_AT_type : <0x128>
<1><128>: Abbrev Number: 3 (DW_TAG_base_type)
<129> DW_AT_byte_size : 1
<12a> DW_AT_encoding : 8 (unsigned char)
<12b> DW_AT_name : (indirect string, offset: 0xae): unsigned
char
<1><12f>: Abbrev Number: 5 (DW_TAG_typedef)
<130> DW_AT_name : (indirect string, offset: 0x40): FILE
<134> DW_AT_decl_file : 4
<135> DW_AT_decl_line : 83
<136> DW_AT_decl_column : 16
<137> DW_AT_type : <0x51>
<1><13b>: Abbrev Number: 9 (DW_TAG_array_type)
<13c> DW_AT_type : <0x51>
<140> DW_AT_sibling : <0x14b>
<2><144>: Abbrev Number: 10 (DW_TAG_subrange_type)
<145> DW_AT_type : <0x28>
<149> DW_AT_upper_bound : 19
<2><14a>: Abbrev Number: 0
<1><14b>: Abbrev Number: 11 (DW_TAG_variable)
<14c> DW_AT_name : (indirect string, offset: 0x26): __iob
<150> DW_AT_decl_file : 4
<151> DW_AT_decl_line : 155
<152> DW_AT_decl_column : 15
<153> DW_AT_type : <0x13b>
<157> DW_AT_external : 1
<158> DW_AT_declaration : 1
<1><159>: Abbrev Number: 9 (DW_TAG_array_type)
<15a> DW_AT_type : <0x128>
<15e> DW_AT_sibling : <0x164>
<2><162>: Abbrev Number: 12 (DW_TAG_subrange_type)
<2><163>: Abbrev Number: 0
<1><164>: Abbrev Number: 11 (DW_TAG_variable)
<165> DW_AT_name : (indirect string, offset: 0x175): _sibuf
<169> DW_AT_decl_file : 5
<16a> DW_AT_decl_line : 208
<16b> DW_AT_decl_column : 23
<16c> DW_AT_type : <0x159>
<170> DW_AT_external : 1
<171> DW_AT_declaration : 1
<1><172>: Abbrev Number: 11 (DW_TAG_variable)
<173> DW_AT_name : (indirect string, offset: 0x32): _sobuf
<177> DW_AT_decl_file : 5
<178> DW_AT_decl_line : 208
<179> DW_AT_decl_column : 33
<17a> DW_AT_type : <0x159>
<17e> DW_AT_external : 1
<17f> DW_AT_declaration : 1
<1><180>: Abbrev Number: 9 (DW_TAG_array_type)
<181> DW_AT_type : <0x122>
<185> DW_AT_sibling : <0x18b>
<2><189>: Abbrev Number: 12 (DW_TAG_subrange_type)
<2><18a>: Abbrev Number: 0
<1><18b>: Abbrev Number: 11 (DW_TAG_variable)
<18c> DW_AT_name : (indirect string, offset: 0x7d):
_bufendtab
<190> DW_AT_decl_file : 5
<191> DW_AT_decl_line : 240
<192> DW_AT_decl_column : 23
<193> DW_AT_type : <0x180>
<197> DW_AT_external : 1
<198> DW_AT_declaration : 1
<1><199>: Abbrev Number: 11 (DW_TAG_variable)
<19a> DW_AT_name : (indirect string, offset: 0x159): _lastbuf
<19e> DW_AT_decl_file : 5
<19f> DW_AT_decl_line : 241
<1a0> DW_AT_decl_column : 15
<1a1> DW_AT_type : <0x1a7>
<1a5> DW_AT_external : 1
<1a6> DW_AT_declaration : 1
<1><1a7>: Abbrev Number: 4 (DW_TAG_pointer_type)
<1a8> DW_AT_byte_size : 4
<1a9> DW_AT_type : <0x12f>
<1><1ad>: Abbrev Number: 13 (DW_TAG_variable)
<1ae> DW_AT_name : (indirect string, offset: 0xf0): optarg
<1b2> DW_AT_decl_file : 5
<1b3> DW_AT_decl_line : 320
<1b5> DW_AT_decl_column : 14
<1b6> DW_AT_type : <0x4b>
<1ba> DW_AT_external : 1
<1bb> DW_AT_declaration : 1
<1><1bc>: Abbrev Number: 13 (DW_TAG_variable)
<1bd> DW_AT_name : (indirect string, offset: 0xa7): optind
<1c1> DW_AT_decl_file : 5
<1c2> DW_AT_decl_line : 321
<1c4> DW_AT_decl_column : 12
<1c5> DW_AT_type : <0x21>
<1c9> DW_AT_external : 1
<1ca> DW_AT_declaration : 1
<1><1cb>: Abbrev Number: 13 (DW_TAG_variable)
<1cc> DW_AT_name : (indirect string, offset: 0x39): opterr
<1d0> DW_AT_decl_file : 5
<1d1> DW_AT_decl_line : 321
<1d3> DW_AT_decl_column : 20
<1d4> DW_AT_type : <0x21>
<1d8> DW_AT_external : 1
<1d9> DW_AT_declaration : 1
<1><1da>: Abbrev Number: 13 (DW_TAG_variable)
<1db> DW_AT_name : (indirect string, offset: 0x76): optopt
<1df> DW_AT_decl_file : 5
<1e0> DW_AT_decl_line : 321
<1e2> DW_AT_decl_column : 28
<1e3> DW_AT_type : <0x21>
<1e7> DW_AT_external : 1
<1e8> DW_AT_declaration : 1
<1><1e9>: Abbrev Number: 14 (DW_TAG_subroutine_type)
<1ea> DW_AT_sibling : <0x1f0>
<2><1ee>: Abbrev Number: 15 (DW_TAG_unspecified_parameters)
<2><1ef>: Abbrev Number: 0
<1><1f0>: Abbrev Number: 16 (DW_TAG_variable)
<1f1> DW_AT_name : (indirect string, offset: 0x136): __cgo__0
<1f5> DW_AT_decl_file : 6
<1f6> DW_AT_decl_line : 1
<1f7> DW_AT_decl_column : 20
<1f8> DW_AT_type : <0x203>
<1fc> DW_AT_external : 1
<1fd> DW_AT_location : 5 byte block: 3 0 0 0 4
(DW_OP_addr: 4)
<1><203>: Abbrev Number: 4 (DW_TAG_pointer_type)
<204> DW_AT_byte_size : 4
<205> DW_AT_type : <0x1e9>
<1><209>: Abbrev Number: 9 (DW_TAG_array_type)
<20a> DW_AT_type : <0x36>
<20e> DW_AT_sibling : <0x219>
<2><212>: Abbrev Number: 10 (DW_TAG_subrange_type)
<213> DW_AT_type : <0x28>
<217> DW_AT_upper_bound : 1
<2><218>: Abbrev Number: 0
<1><219>: Abbrev Number: 16 (DW_TAG_variable)
<21a> DW_AT_name : (indirect string, offset: 0xce):
__cgodebug_ints
<21e> DW_AT_decl_file : 6
<21f> DW_AT_decl_line : 2
<220> DW_AT_decl_column : 11
<221> DW_AT_type : <0x209>
<225> DW_AT_external : 1
<226> DW_AT_location : 5 byte block: 3 0 0 0 10
(DW_OP_addr: 10)
<1><22c>: Abbrev Number: 9 (DW_TAG_array_type)
<22d> DW_AT_type : <0x23c>
<231> DW_AT_sibling : <0x23c>
<2><235>: Abbrev Number: 10 (DW_TAG_subrange_type)
<236> DW_AT_type : <0x28>
<23a> DW_AT_upper_bound : 1
<2><23b>: Abbrev Number: 0
<1><23c>: Abbrev Number: 3 (DW_TAG_base_type)
<23d> DW_AT_byte_size : 8
<23e> DW_AT_encoding : 4 (float)
<23f> DW_AT_name : (indirect string, offset: 0xc7): double
<1><243>: Abbrev Number: 16 (DW_TAG_variable)
<244> DW_AT_name : (indirect string, offset: 0xd):
__cgodebug_floats
<248> DW_AT_decl_file : 6
<249> DW_AT_decl_line : 6
<24a> DW_AT_decl_column : 8
<24b> DW_AT_type : <0x22c>
<24f> DW_AT_external : 1
<250> DW_AT_location : 5 byte block: 3 0 0 0 0
(DW_OP_addr: 0)
<1><256>: Abbrev Number: 17 (DW_TAG_subprogram)
<257> DW_AT_external : 1
<258> DW_AT_name : (indirect string, offset: 0xa1): testc
<25c> DW_AT_decl_file : 1
<25d> DW_AT_decl_line : 6
<25e> DW_AT_decl_column : 6
<25f> DW_AT_low_pc : 0x0
<263> DW_AT_high_pc : 0x14
<267> DW_AT_frame_base : 2 byte block: 7e 0 (DW_OP_breg14
(r14): 0)
<26a> DW_AT_GNU_all_call_sites: 1
<26b> DW_AT_sibling : <0x281>
<2><26f>: Abbrev Number: 18 (DW_TAG_GNU_call_site)
<270> DW_AT_low_pc : 0x14
<274> DW_AT_GNU_tail_call: 1
<275> DW_AT_abstract_origin: <0x281>
<3><279>: Abbrev Number: 19 (DW_TAG_GNU_call_site_parameter)
<27a> DW_AT_location : 1 byte block: 58 (DW_OP_reg8 (r8))
<27c> DW_AT_GNU_call_site_value: 2 byte block: 78 0
(DW_OP_breg8 (r8): 0)
<3><27f>: Abbrev Number: 0
<2><280>: Abbrev Number: 0
<1><281>: Abbrev Number: 20 (DW_TAG_subprogram)
<282> DW_AT_external : 1
<283> DW_AT_declaration : 1
<284> DW_AT_MIPS_linkage_name: (indirect string, offset: 0x12f):
printf
<288> DW_AT_name : (indirect string, offset: 0x12f): printf
<28c> DW_AT_decl_file : 4
<28d> DW_AT_decl_line : 215
<28e> DW_AT_decl_column : 12
<1><28f>: Abbrev Number: 0
Contents of the .debug_abbrev section:
Number TAG (0x0)
1 DW_TAG_compile_unit [has children]
DW_AT_producer DW_FORM_strp
DW_AT_language DW_FORM_data1
DW_AT_comp_dir DW_FORM_strp
DW_AT_low_pc DW_FORM_addr
DW_AT_high_pc DW_FORM_addr
DW_AT_stmt_list DW_FORM_data4
DW_AT value: 0 DW_FORM value: 0
2 DW_TAG_base_type [no children]
DW_AT_byte_size DW_FORM_data1
DW_AT_encoding DW_FORM_data1
DW_AT_name DW_FORM_string
DW_AT value: 0 DW_FORM value: 0
3 DW_TAG_base_type [no children]
DW_AT_byte_size DW_FORM_data1
DW_AT_encoding DW_FORM_data1
DW_AT_name DW_FORM_strp
DW_AT value: 0 DW_FORM value: 0
4 DW_TAG_pointer_type [no children]
DW_AT_byte_size DW_FORM_data1
DW_AT_type DW_FORM_ref4
DW_AT value: 0 DW_FORM value: 0
5 DW_TAG_typedef [no children]
DW_AT_name DW_FORM_strp
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_decl_column DW_FORM_data1
DW_AT_type DW_FORM_ref4
DW_AT value: 0 DW_FORM value: 0
6 DW_TAG_structure_type [has children]
DW_AT_name DW_FORM_strp
DW_AT_byte_size DW_FORM_data1
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_decl_column DW_FORM_data1
DW_AT_sibling DW_FORM_ref4
DW_AT value: 0 DW_FORM value: 0
7 DW_TAG_member [no children]
DW_AT_name DW_FORM_strp
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_decl_column DW_FORM_data1
DW_AT_type DW_FORM_ref4
DW_AT_data_member_location DW_FORM_block1
DW_AT value: 0 DW_FORM value: 0
8 DW_TAG_member [no children]
DW_AT_name DW_FORM_strp
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_decl_column DW_FORM_data1
DW_AT_type DW_FORM_ref4
DW_AT_byte_size DW_FORM_data1
DW_AT_bit_size DW_FORM_data1
DW_AT_bit_offset DW_FORM_data1
DW_AT_data_member_location DW_FORM_block1
DW_AT value: 0 DW_FORM value: 0
9 DW_TAG_array_type [has children]
DW_AT_type DW_FORM_ref4
DW_AT_sibling DW_FORM_ref4
DW_AT value: 0 DW_FORM value: 0
10 DW_TAG_subrange_type [no children]
DW_AT_type DW_FORM_ref4
DW_AT_upper_bound DW_FORM_data1
DW_AT value: 0 DW_FORM value: 0
11 DW_TAG_variable [no children]
DW_AT_name DW_FORM_strp
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_decl_column DW_FORM_data1
DW_AT_type DW_FORM_ref4
DW_AT_external DW_FORM_flag
DW_AT_declaration DW_FORM_flag
DW_AT value: 0 DW_FORM value: 0
12 DW_TAG_subrange_type [no children]
DW_AT value: 0 DW_FORM value: 0
13 DW_TAG_variable [no children]
DW_AT_name DW_FORM_strp
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data2
DW_AT_decl_column DW_FORM_data1
DW_AT_type DW_FORM_ref4
DW_AT_external DW_FORM_flag
DW_AT_declaration DW_FORM_flag
DW_AT value: 0 DW_FORM value: 0
14 DW_TAG_subroutine_type [has children]
DW_AT_sibling DW_FORM_ref4
DW_AT value: 0 DW_FORM value: 0
15 DW_TAG_unspecified_parameters [no children]
DW_AT value: 0 DW_FORM value: 0
16 DW_TAG_variable [no children]
DW_AT_name DW_FORM_strp
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_decl_column DW_FORM_data1
DW_AT_type DW_FORM_ref4
DW_AT_external DW_FORM_flag
DW_AT_location DW_FORM_block1
DW_AT value: 0 DW_FORM value: 0
17 DW_TAG_subprogram [has children]
DW_AT_external DW_FORM_flag
DW_AT_name DW_FORM_strp
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_decl_column DW_FORM_data1
DW_AT_low_pc DW_FORM_addr
DW_AT_high_pc DW_FORM_addr
DW_AT_frame_base DW_FORM_block1
DW_AT_GNU_all_call_sites DW_FORM_flag
DW_AT_sibling DW_FORM_ref4
DW_AT value: 0 DW_FORM value: 0
18 DW_TAG_GNU_call_site [has children]
DW_AT_low_pc DW_FORM_addr
DW_AT_GNU_tail_call DW_FORM_flag
DW_AT_abstract_origin DW_FORM_ref4
DW_AT value: 0 DW_FORM value: 0
19 DW_TAG_GNU_call_site_parameter [no children]
DW_AT_location DW_FORM_block1
DW_AT_GNU_call_site_value DW_FORM_block1
DW_AT value: 0 DW_FORM value: 0
20 DW_TAG_subprogram [no children]
DW_AT_external DW_FORM_flag
DW_AT_declaration DW_FORM_flag
DW_AT_MIPS_linkage_name DW_FORM_strp
DW_AT_name DW_FORM_strp
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_decl_column DW_FORM_data1
DW_AT value: 0 DW_FORM value: 0
Contents of the .debug_aranges section:
Length: 28
Version: 2
Offset into .debug_info: 0x0
Pointer Size: 4
Segment Size: 0
Address Length
00000000 00000014
00000000 00000000
Raw dump of debug contents of section .debug_line:
Offset: 0x0
Length: 292
DWARF Version: 2
Prologue Length: 268
Minimum Instruction Length: 4
Initial value of 'is_stmt': 1
Line Base: -5
Line Range: 14
Opcode Base: 13
Opcodes:
Opcode 1 has 0 args
Opcode 2 has 1 args
Opcode 3 has 1 args
Opcode 4 has 1 args
Opcode 5 has 1 args
Opcode 6 has 0 args
Opcode 7 has 0 args
Opcode 8 has 0 args
Opcode 9 has 1 args
Opcode 10 has 0 args
Opcode 11 has 0 args
Opcode 12 has 1 args
The Directory Table (offset 0x1b):
1 /export/home/amandeep
2 /usr/include
3 /usr/gnu/lib/gcc/sparc-sun-solaris2.10/8.2.1/include-fixed/iso
4 /usr/gnu/lib/gcc/sparc-sun-solaris2.10/8.2.1/include-fixed
The File Name Table (offset 0xb9):
Entry Dir Time Size Name
1 1 0 0 sol10.go
2 2 0 0 stdio_impl.h
3 2 0 0 stdio_tag.h
4 3 0 0 stdio_iso.h
5 4 0 0 stdio.h
6 0 0 0 cgo-dwarf-inference
Line Number Statements:
[0x00000116] Set column to 14
[0x00000118] Extended opcode 2: set Address to 0x0
[0x0000011f] Special opcode 10: advance Address by 0 to 0x0 and Line by
5 to 6
[0x00000120] Set column to 5
[0x00000122] Special opcode 6: advance Address by 0 to 0x0 and Line by 1
to 7
[0x00000123] Advance PC by 20 to 0x14
[0x00000125] Extended opcode 1: End of Sequence
Contents of the .debug_str section:
0x00000000 5f5f6578 74656e64 65646664 005f5f63 __extendedfd.__c
0x00000010 676f6465 6275675f 666c6f61 7473005f godebug_floats._
0x00000020 5f46494c 45005f5f 696f6200 5f666c61 _FILE.__iob._fla
0x00000030 67005f73 6f627566 006f7074 65727200 g._sobuf.opterr.
0x00000040 46494c45 00474e55 20433137 20382e32 FILE.GNU C17 8.2
0x00000050 2e312032 30313830 38313420 2d6d6370 .1 20180814 -mcp
0x00000060 753d7639 202d6764 77617266 2d32202d u=v9 -gdwarf-2 -
0x00000070 67202d4f 32006f70 746f7074 005f6275 g -O2.optopt._bu
0x00000080 66656e64 74616200 5f5f6f72 69656e74 fendtab.__orient
0x00000090 6174696f 6e005f5f 696f6e6f 6c6f636b ation.__ionolock
0x000000a0 00746573 7463006f 7074696e 6400756e .testc.optind.un
0x000000b0 7369676e 65642063 68617200 5f5f7365 signed char.__se
0x000000c0 656b6162 6c650064 6f75626c 65005f5f ekable.double.__
0x000000d0 63676f64 65627567 5f696e74 73005f70 cgodebug_ints._p
0x000000e0 74720075 6e736967 6e656420 696e7400 tr.unsigned int.
0x000000f0 6f707461 7267005f 5f66696c 6c657200 optarg.__filler.
0x00000100 63686172 005f6669 6c65002f 6578706f char._file./expo
0x00000110 72742f68 6f6d652f 616d616e 64656570 rt/home/amandeep
0x00000120 006c6f6e 67206c6f 6e672069 6e740070 .long long int.p
0x00000130 72696e74 66005f5f 63676f5f 5f30006c rintf.__cgo__0.l
0x00000140 6f6e6720 696e7400 5f636e74 006c6f6e ong int._cnt.lon
0x00000150 6720646f 75626c65 005f6c61 73746275 g double._lastbu
0x00000160 66005f62 61736500 5f5f7866 5f6e6f63 f._base.__xf_noc
0x00000170 6865636b 005f7369 62756600 heck._sibuf.
Also, looks like Solaris 11 is very different than Solaris 10. Please see
the prompt below where "sol10.go" is the file from the first message:
amandeep@s113ldom1:~$ go build -x sol10.go
WORK=/tmp/go-build038354192
mkdir -p $WORK/b001/
cat >$WORK/b001/importcfg.link << 'EOF' # internal
packagefile
command-line-arguments=/home/amandeep/.cache/go-build/02/0272a12b534156aa38d92948433fc12ef8c60940db073e83182436827d642e97-d
EOF
mkdir -p $WORK/b001/exe/
cp
/home/amandeep/.cache/go-build/02/0272a12b534156aa38d92948433fc12ef8c60940db073e83182436827d642e97-d
$WORK/b001/_pkg1_.a
cd $WORK/b001/
ar x ./_pkg1_.a _cgo_flags
cd .
ar d $WORK/b001/_pkg1_.a _cgo_flags
/usr/gnu/bin/gccgo -o $WORK/b001/exe/a.out "-Wl,-(" -Wl,--whole-archive
$WORK/b001/_pkg1_.a -Wl,--no-whole-archive "-Wl,-)"
/usr/gnu/libexec/gcc/sparc-sun-solaris2.11/8.2.1/buildid -w
$WORK/b001/exe/a.out # internal
cp $WORK/b001/exe/a.out sol10
rm -r $WORK/b001/
On Friday, September 14, 2018 at 2:52:21 PM UTC-7, Ian Lance Taylor wrote:
>
> On Fri, Sep 14, 2018 at 2:16 PM, <aman...@cohesity.com <javascript:>>
> wrote:
> > It would be the same. Please see below.
> >
> > -bash-3.2$ gcc --version
> > gcc (GCC) 8.2.1 20180814
> > Copyright (C) 2018 Free Software Foundation, Inc.
> > This is free software; see the source for copying conditions. There is
> NO
> > warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
> PURPOSE.
>
>
> Hmmm, not sure what is happening. Especially not sure why it would
> fail on Solaris 10 but work on Solaris 11, as you suggested earlier.
> I have a feeling this is going to be some configuration error
> somewhere.
>
> I guess the next step in debugging would be to run this command,
> copied from your earlier message, and then look at x.o to see how
> __cgo__0 is defined in the debug info. If you have the readelf
> program from the GNU binutils you could run readelf --debug=all x.o.
>
> Ian
>
>
> gcc -w -Wno-error -o x.o -gdwarf-2 -c -xc -I /b001/ -g -O2 - <<EOF
>
> #line 1 "cgo-builtin-prolog"
> #include <stddef.h> /* for ptrdiff_t and size_t below */
>
> /* Define intgo when compiling with GCC. */
> typedef ptrdiff_t intgo;
>
> typedef struct { const char *p; intgo n; } _GoString_;
> typedef struct { char *p; intgo n; intgo c; } _GoBytes_;
> _GoString_ GoString(char *p);
> _GoString_ GoStringN(char *p, int l);
> _GoBytes_ GoBytes(void *p, int n);
> char *CString(_GoString_);
> void *CBytes(_GoBytes_);
> void *_CMalloc(size_t);
>
> __attribute__ ((unused))
> static size_t _GoStringLen(_GoString_ s) { return s.n; }
>
> __attribute__ ((unused))
> static const char *_GoStringPtr(_GoString_ s) { return s.p; }
> #line 3 "/export/home/amandeep/sol10.go"
>
> #include <stdio.h>
>
> void testc() {
> printf("Hello cgo");
> }
>
> #line 1 "cgo-generated-wrapper"
> #line 1 "cgo-dwarf-inference"
> __typeof__(testc) *__cgo__0;
> long long __cgodebug_ints[] = {
> 0,
> 1
> };
> double __cgodebug_floats[] = {
> 0,
> 1
> };
> EOF
>
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