--18142-- WARNING: Serious error when reading debug info
--18142-- When reading debug info from
/export/home/paulf/tools/gcc/lib/libstdc++.so.6.0.25:
--18142-- Can't make sense of .rodata section mapping
(GCC SVN head, Solaris 11.3, Valgrind git head).
What does
readelf --headers .../libstdc++.so.6.0.25
say about the ElfXX_Shdrs and ElfXX_Phdrs,
and the mapping of the Shdrs into the Phdrs ?
I don’t see any Elf hdrs as above in the output.
Here is the output on Linux. Is there something equivalent on Solaris?
======
$ readelf --headers /lib64/libstdc++.so.6
ELF Header:
Magic: 7f 45 4c 46 02 01 01 03 00 00 00 00 00 00 00 00
Class: ELF64
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - GNU
ABI Version: 0
Type: DYN (Shared object file)
Machine: Advanced Micro Devices X86-64
Version: 0x1
Entry point address: 0x8b880
Start of program headers: 64 (bytes into file)
Start of section headers: 1588608 (bytes into file)
Flags: 0x0
Size of this header: 64 (bytes)
Size of program headers: 56 (bytes)
Number of program headers: 8
Size of section headers: 64 (bytes)
Number of section headers: 33
Section header string table index: 32
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
[ 0] NULL 0000000000000000 00000000
0000000000000000 0000000000000000 0 0 0
[ 1] .note.gnu.build-i NOTE 0000000000000200 00000200
0000000000000024 0000000000000000 A 0 0 4
[ 2] .gnu.hash GNU_HASH 0000000000000228 00000228
0000000000008410 0000000000000000 A 3 0 8
[ 3] .dynsym DYNSYM 0000000000008638 00008638
00000000000205e0 0000000000000018 A 4 3 8
[ 4] .dynstr STRTAB 0000000000028c18 00028c18
0000000000040f7f 0000000000000000 A 0 0 1
[ 5] .gnu.version VERSYM 0000000000069b98 00069b98
0000000000002b28 0000000000000002 A 3 0 2
[ 6] .gnu.version_d VERDEF 000000000006c6c0 0006c6c0
000000000000050c 0000000000000000 A 4 37 8
[ 7] .gnu.version_r VERNEED 000000000006cbd0 0006cbd0
0000000000000100 0000000000000000 A 4 4 8
[ 8] .rela.dyn RELA 000000000006ccd0 0006ccd0
0000000000016aa0 0000000000000018 A 3 0 8
[ 9] .rela.plt RELA 0000000000083770 00083770
0000000000004ce0 0000000000000018 AI 3 27 8
[10] .init PROGBITS 0000000000088450 00088450
0000000000000017 0000000000000000 AX 0 0 4
[11] .plt PROGBITS 0000000000088470 00088470
0000000000003350 0000000000000010 AX 0 0 16
[12] .plt.got PROGBITS 000000000008b7c0 0008b7c0
00000000000000b8 0000000000000000 AX 0 0 8
[13] .text PROGBITS 000000000008b880 0008b880
00000000000af149 0000000000000000 AX 0 0 16
[14] .fini PROGBITS 000000000013a9cc 0013a9cc
0000000000000009 0000000000000000 AX 0 0 4
[15] .rodata PROGBITS 000000000013a9e0 0013a9e0
0000000000008258 0000000000000000 A 0 0 32
[16] .stapsdt.base PROGBITS 0000000000142c38 00142c38
0000000000000001 0000000000000000 A 0 0 1
[17] .eh_frame_hdr PROGBITS 0000000000142c3c 00142c3c
0000000000007714 0000000000000000 A 0 0 4
[18] .eh_frame PROGBITS 000000000014a350 0014a350
000000000002717c 0000000000000000 A 0 0 8
[19] .gcc_except_table PROGBITS 00000000001714cc 001714cc
0000000000006356 0000000000000000 A 0 0 4
[20] .tbss NOBITS 0000000000378318 00178318
0000000000000020 0000000000000000 WAT 0 0 8
[21] .init_array INIT_ARRAY 0000000000378318 00178318
0000000000000058 0000000000000000 WA 0 0 8
[22] .fini_array FINI_ARRAY 0000000000378370 00178370
0000000000000008 0000000000000000 WA 0 0 8
[23] .jcr PROGBITS 0000000000378378 00178378
0000000000000008 0000000000000000 WA 0 0 8
[24] .data.rel.ro PROGBITS 0000000000378380 00178380
00000000000089c8 0000000000000000 WA 0 0 32
[25] .dynamic DYNAMIC 0000000000380d48 00180d48
0000000000000220 0000000000000010 WA 4 0 8
[26] .got PROGBITS 0000000000380f68 00180f68
0000000000001098 0000000000000008 WA 0 0 8
[27] .got.plt PROGBITS 0000000000382000 00182000
00000000000019b8 0000000000000008 WA 0 0 8
[28] .data PROGBITS 00000000003839c0 001839c0
0000000000000178 0000000000000000 WA 0 0 32
[29] .bss NOBITS 0000000000383b40 00183b38
0000000000003720 0000000000000000 WA 0 0 32
[30] .note.stapsdt NOTE 0000000000000000 00183b38
00000000000000ec 0000000000000000 0 0 4
[31] .gnu_debuglink PROGBITS 0000000000000000 00183c24
0000000000000020 0000000000000000 0 0 4
[32] .shstrtab STRTAB 0000000000000000 00183c44
000000000000013c 0000000000000000 0 0 1
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings), l (large)
I (info), L (link order), G (group), T (TLS), E (exclude), x (unknown)
O (extra OS processing required) o (OS specific), p (processor specific)
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x0000000000177822 0x0000000000177822 R E 200000
LOAD 0x0000000000178318 0x0000000000378318 0x0000000000378318
0x000000000000b820 0x000000000000ef48 RW 200000
DYNAMIC 0x0000000000180d48 0x0000000000380d48 0x0000000000380d48
0x0000000000000220 0x0000000000000220 RW 8
NOTE 0x0000000000000200 0x0000000000000200 0x0000000000000200
0x0000000000000024 0x0000000000000024 R 4
TLS 0x0000000000178318 0x0000000000378318 0x0000000000378318
0x0000000000000000 0x0000000000000020 R 8
GNU_EH_FRAME 0x0000000000142c3c 0x0000000000142c3c 0x0000000000142c3c
0x0000000000007714 0x0000000000007714 R 4
GNU_STACK 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x0000000000000000 0x0000000000000000 RW 10
GNU_RELRO 0x0000000000178318 0x0000000000378318 0x0000000000378318
0x0000000000009ce8 0x0000000000009ce8 R 1
Section to Segment mapping:
Segment Sections...
00 .note.gnu.build-id .gnu.hash .dynsym .dynstr .gnu.version
.gnu.version_d .gnu.version_r .rela.dyn .rela.plt .init .plt .plt.got .text
.fini .rodata .stapsdt.base .eh_frame_hdr .eh_frame .gcc_except_table
01 .init_array .fini_array .jcr .data.rel.ro .dynamic .got .got.plt
.data .bss
02 .dynamic
03 .note.gnu.build-id
04 .tbss
05 .eh_frame_hdr
06
07 .init_array .fini_array .jcr .data.rel.ro .dynamic .got
=====
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