------- Additional Comments From hjl dot tools at gmail dot com 2008-11-07
17:22 -------
(In reply to comment #2)
> Created an attachment (id=3048)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=3048&action=view)
> readelf of object file
>
There is:
There are no section groups in this file.
Why doesn't it use COMDAT group with gcc 4.3.2 and binutils 2.19. The
correct .o files should use COMDAT group for linkonce sections:
[EMAIL PROTECTED] src]$ readelf -Sg valarray-inst.o
There are 60 section headers, starting at offset 0x83e8:
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
[ 0] NULL 0000000000000000 00000000
0000000000000000 0000000000000000 0 0 0
[ 1] .group GROUP 0000000000000000 00000040
0000000000000008 0000000000000004 58 41 4
[ 2] .group GROUP 0000000000000000 00000048
0000000000000008 0000000000000004 58 43 4
[ 3] .group GROUP 0000000000000000 00000050
0000000000000008 0000000000000004 58 44 4
[ 4] .group GROUP 0000000000000000 00000058
0000000000000008 0000000000000004 58 45 4
[ 5] .group GROUP 0000000000000000 00000060
0000000000000008 0000000000000004 58 48 4
[ 6] .group GROUP 0000000000000000 00000068
0000000000000008 0000000000000004 58 50 4
[ 7] .group GROUP 0000000000000000 00000070
0000000000000008 0000000000000004 58 51 4
[ 8] .group GROUP 0000000000000000 00000078
0000000000000008 0000000000000004 58 53 4
[ 9] .group GROUP 0000000000000000 00000080
0000000000000008 0000000000000004 58 54 4
[10] .group GROUP 0000000000000000 00000088
0000000000000008 0000000000000004 58 55 4
[11] .text PROGBITS 0000000000000000 00000090
0000000000000000 0000000000000000 AX 0 0 4
[12] .data PROGBITS 0000000000000000 00000090
0000000000000000 0000000000000000 WA 0 0 4
[13] .bss NOBITS 0000000000000000 00000090
0000000000000000 0000000000000000 WA 0 0 4
[14] .debug_abbrev PROGBITS 0000000000000000 00000090
0000000000000529 0000000000000000 0 0 1
[15] .debug_info PROGBITS 0000000000000000 000005b9
000000000000343f 0000000000000000 0 0 1
[16] .rela.debug_info RELA 0000000000000000 00009a68
00000000000044b8 0000000000000018 58 15 8
[17] .debug_line PROGBITS 0000000000000000 000039f8
0000000000000746 0000000000000000 0 0 1
[18] .rela.debug_line RELA 0000000000000000 0000df20
0000000000000138 0000000000000018 58 17 8
[19] .text._ZSt15__val PROGBITS 0000000000000000 00004140
000000000000001a 0000000000000000 AXG 0 0 16
[20] .text._ZNKSt8vala PROGBITS 0000000000000000 00004160
0000000000000004 0000000000000000 AXG 0 0 16
[21] .text._ZNSt8valar PROGBITS 0000000000000000 00004170
000000000000000d 0000000000000000 AXG 0 0 16
[22] .text._ZNSt8valar PROGBITS 0000000000000000 00004180
000000000000004e 0000000000000000 AXG 0 0 16
[23] .rela.text._ZNSt8 RELA 0000000000000000 0000e058
0000000000000030 0000000000000018 58 22 8
[24] .text._ZSt15__val PROGBITS 0000000000000000 000041d0
0000000000000016 0000000000000000 AXG 0 0 16
[25] .rela.text._ZSt15 RELA 0000000000000000 0000e088
0000000000000018 0000000000000018 58 24 8
[26] .text._ZNSt8valar PROGBITS 0000000000000000 000041f0
0000000000000052 0000000000000000 AXG 0 0 16
[27] .rela.text._ZNSt8 RELA 0000000000000000 0000e0a0
0000000000000030 0000000000000018 58 26 8
[28] .text._ZNSt8valar PROGBITS 0000000000000000 00004250
0000000000000009 0000000000000000 AXG 0 0 16
[29] .rela.text._ZNSt8 RELA 0000000000000000 0000e0d0
0000000000000018 0000000000000018 58 28 8
[30] .text._ZNSt8valar PROGBITS 0000000000000000 00004260
0000000000000009 0000000000000000 AXG 0 0 16
[31] .rela.text._ZNSt8 RELA 0000000000000000 0000e0e8
0000000000000018 0000000000000018 58 30 8
[32] .text._ZNSt8valar PROGBITS 0000000000000000 00004270
0000000000000052 0000000000000000 AXG 0 0 16
[33] .rela.text._ZNSt8 RELA 0000000000000000 0000e100
0000000000000030 0000000000000018 58 32 8
[34] .text._ZNSt8valar PROGBITS 0000000000000000 000042d0
000000000000004e 0000000000000000 AXG 0 0 16
[35] .rela.text._ZNSt8 RELA 0000000000000000 0000e130
0000000000000030 0000000000000018 58 34 8
[36] .text._ZSt17__gsl PROGBITS 0000000000000000 00004320
0000000000000157 0000000000000000 AX 0 0 16
[37] .rela.text._ZSt17 RELA 0000000000000000 0000e160
0000000000000048 0000000000000018 58 36 8
[38] .text._ZNSt6gslic PROGBITS 0000000000000000 00004480
000000000000013a 0000000000000000 AX 0 0 16
[39] .rela.text._ZNSt6 RELA 0000000000000000 0000e1a8
0000000000000108 0000000000000018 58 38 8
[40] .gcc_except_table PROGBITS 0000000000000000 000045ba
000000000000001e 0000000000000000 A 0 0 1
[41] .text._ZNSt6gslic PROGBITS 0000000000000000 000045e0
000000000000013a 0000000000000000 AX 0 0 16
[42] .rela.text._ZNSt6 RELA 0000000000000000 0000e2b0
0000000000000108 0000000000000018 58 41 8
[43] .gcc_except_table PROGBITS 0000000000000000 0000471a
000000000000001e 0000000000000000 A 0 0 1
[44] .debug_loc PROGBITS 0000000000000000 00004738
0000000000000875 0000000000000000 0 0 1
[45] .rela.debug_loc RELA 0000000000000000 0000e3b8
0000000000000ed0 0000000000000018 58 44 8
[46] .debug_pubnames PROGBITS 0000000000000000 00004fad
0000000000000220 0000000000000000 0 0 1
[47] .rela.debug_pubna RELA 0000000000000000 0000f288
0000000000000018 0000000000000018 58 46 8
[48] .debug_aranges PROGBITS 0000000000000000 000051cd
00000000000000f0 0000000000000000 0 0 1
[49] .rela.debug_arang RELA 0000000000000000 0000f2a0
0000000000000150 0000000000000018 58 48 8
[50] .debug_ranges PROGBITS 0000000000000000 000052bd
0000000000000970 0000000000000000 0 0 1
[51] .rela.debug_range RELA 0000000000000000 0000f3f0
00000000000014d0 0000000000000018 58 50 8
[52] .debug_str PROGBITS 0000000000000000 00005c2d
0000000000002247 0000000000000001 MS 0 0 1
[53] .comment PROGBITS 0000000000000000 00007e74
0000000000000042 0000000000000000 0 0 1
[54] .note.GNU-stack PROGBITS 0000000000000000 00007eb6
0000000000000000 0000000000000000 0 0 1
[55] .eh_frame PROGBITS 0000000000000000 00007eb8
00000000000001c0 0000000000000000 A 0 0 8
[56] .rela.eh_frame RELA 0000000000000000 000108c0
0000000000000198 0000000000000018 58 55 8
[57] .shstrtab STRTAB 0000000000000000 00008078
000000000000036c 0000000000000000 0 0 1
[58] .symtab SYMTAB 0000000000000000 000092e8
00000000000005a0 0000000000000018 59 41 8
[59] .strtab STRTAB 0000000000000000 00009888
00000000000001dd 0000000000000000 0 0 1
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings)
I (info), L (link order), G (group), x (unknown)
O (extra OS processing required) o (OS specific), p (processor specific)
COMDAT group section [ 1] `.group' [_ZSt15__valarray_fillImEvPT_mRKS0_]
contains 1 sections:
[Index] Name
[ 19] .text._ZSt15__valarray_fillImEvPT_mRKS0_
COMDAT group section [ 2] `.group' [_ZNKSt8valarrayImE4sizeEv] contains 1
sections:
[Index] Name
[ 20] .text._ZNKSt8valarrayImE4sizeEv
COMDAT group section [ 3] `.group' [_ZNSt8valarrayImEixEm] contains 1
sections:
[Index] Name
[ 21] .text._ZNSt8valarrayImEixEm
COMDAT group section [ 4] `.group' [_ZNSt8valarrayImEC2Em] contains 1
sections:
[Index] Name
[ 22] .text._ZNSt8valarrayImEC2Em
COMDAT group section [ 5] `.group' [_ZSt15__valarray_copyImEvPKT_mPS0_]
contains 1 sections:
[Index] Name
[ 24] .text._ZSt15__valarray_copyImEvPKT_mPS0_
COMDAT group section [ 6] `.group' [_ZNSt8valarrayImEC1ERKS0_] contains 1
sections:
[Index] Name
[ 26] .text._ZNSt8valarrayImEC1ERKS0_
COMDAT group section [ 7] `.group' [_ZNSt8valarrayImED1Ev] contains 1
sections:
[Index] Name
[ 28] .text._ZNSt8valarrayImED1Ev
COMDAT group section [ 8] `.group' [_ZNSt8valarrayImED2Ev] contains 1
sections:
[Index] Name
[ 30] .text._ZNSt8valarrayImED2Ev
COMDAT group section [ 9] `.group' [_ZNSt8valarrayImEC2ERKS0_] contains 1
sections:
[Index] Name
[ 32] .text._ZNSt8valarrayImEC2ERKS0_
COMDAT group section [ 10] `.group' [_ZNSt8valarrayImEC1Em] contains 1
sections:
[Index] Name
[ 34] .text._ZNSt8valarrayImEC1Em
[EMAIL PROTECTED] src]$
--
http://sourceware.org/bugzilla/show_bug.cgi?id=6996
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