addr2line applies relocation on relocatable linux kernel, which leads to
[EMAIL PROTECTED] linux-2.6.21.i686]$ grep c10353a4 System.map
c10353a4 T rcu_barrier
[EMAIL PROTECTED] linux-2.6.21.i686]$ addr2line -e vmlinux c10353a4
??:0
[EMAIL PROTECTED] linux-2.6.21.i686]$ readelf -S vmlinux
There are 84 section headers, starting at offset 0x2bc76d4:
Section Headers:
[Nr] Name Type Addr Off Size ES Flg Lk Inf Al
[ 0] NULL 00000000 000000 000000 00 0 0 0
[ 1] .text.head PROGBITS c1000000 001000 0000a4 00 AX 0 0 4
[ 2] .rel.text.head REL 00000000 2bc83f4 000050 08 82 1
4
[ 3] .text PROGBITS c1001000 002000 203adb 00 AX 0 0
4096
[ 4] .rel.text REL 00000000 2bc8444 084250 08 82 3
4
[ 5] __ex_table PROGBITS c1204ae0 205ae0 000e30 00 A 0 0 8
[ 6] .rel__ex_table REL 00000000 2c4c694 001c60 08 82 5
4
[ 7] .rodata PROGBITS c1206000 207000 0b4c1b 00 A 0 0 32
[ 8] .rel.rodata REL 00000000 2c4e2f4 041d48 08 82 7
4
[ 9] .pci_fixup PROGBITS c12bac1c 2bbc1c 000728 00 A 0 0 4
[10] .rel.pci_fixup REL 00000000 2c9003c 000728 08 82 9
4
[11] __ksymtab PROGBITS c12bb344 2bc344 004f58 00 A 0 0 4
[12] .rel__ksymtab REL 00000000 2c90764 009eb0 08 82 11
4
[13] __ksymtab_gpl PROGBITS c12c029c 2c129c 0014c8 00 A 0 0 4
[14] .rel__ksymtab_gpl REL 00000000 2c9a614 002990 08 82 13
4
[15] __ksymtab_gpl_fut PROGBITS c12c1764 2c2764 000018 00 A 0 0 4
[16] .rel__ksymtab_gpl REL 00000000 2c9cfa4 000030 08 82 15
4
[17] __kcrctab PROGBITS c12c177c 2c277c 0027ac 00 A 0 0 4
[18] .rel__kcrctab REL 00000000 2c9cfd4 004f58 08 82 17
4
[19] __kcrctab_gpl PROGBITS c12c3f28 2c4f28 000a64 00 A 0 0 4
[20] .rel__kcrctab_gpl REL 00000000 2ca1f2c 0014c8 08 82 19
4
[21] __kcrctab_gpl_fut PROGBITS c12c498c 2c598c 00000c 00 A 0 0 4
[22] .rel__kcrctab_gpl REL 00000000 2ca33f4 000018 08 82 21
4
[23] __ksymtab_strings PROGBITS c12c49a0 2c59a0 00dea0 00 A 0 0 32
[24] __param PROGBITS c12d2840 2d3840 00085c 00 A 0 0 4
[25] .rel__param REL 00000000 2ca340c 000d48 08 82 24
4
[26] __bug_table PROGBITS c12d4000 2d5000 0037b0 00 A 0 0 1
[27] .rel__bug_table REL 00000000 2ca4154 004a40 08 82 26
4
[28] .tracedata PROGBITS c12d77b0 2d87b0 000018 00 A 0 0 1
[29] .rel.tracedata REL 00000000 2ca8b94 000020 08 82 28
4
[30] .data PROGBITS c12d8000 2d9000 02b670 00 WA 0 0
128
[31] .rel.data REL 00000000 2ca8bb4 00b8a8 08 82 30
4
[32] .data_nosave PROGBITS c1304000 305000 002000 00 WA 0 0
4096
[33] .data.page_aligne PROGBITS c1306000 307000 000800 00 WA 0 0 32
[34] .data.cacheline_a PROGBITS c1306800 307800 00bb80 00 WA 0 0
128
[35] .rel.data.cacheli REL 00000000 2cb445c 000e30 08 82 34
4
[36] .data.read_mostly PROGBITS c1312380 313380 002934 00 WA 0 0
128
[37] .rel.data.read_mo REL 00000000 2cb528c 000220 08 82 36
4
[38] .data.init_task PROGBITS c1315000 316000 001000 00 WA 0 0 32
[39] .rel.data.init_ta REL 00000000 2cb54ac 000018 08 82 38
4
[40] .smp_locks PROGBITS c1316000 317000 003830 00 A 0 0 4
[41] .rel.smp_locks REL 00000000 2cb54c4 007060 08 82 40
4
[42] .init.text PROGBITS c131a000 31b000 020c99 00 AX 0 0 1
[43] .rel.init.text REL 00000000 2cbc524 012dd0 08 82 42
4
[44] .init.data PROGBITS c133b000 33c000 011173 00 WA 0 0
4096
[45] .rel.init.data REL 00000000 2ccf2f4 000ce0 08 82 44
4
[46] .init.setup PROGBITS c134c180 34d180 0006f0 00 WA 0 0 4
[47] .rel.init.setup REL 00000000 2ccffd4 000940 08 82 46
4
[48] .initcall.init PROGBITS c134c870 34d870 0003f0 00 WA 0 0 4
[49] .rel.initcall.ini REL 00000000 2cd0914 0007e0 08 82 48
4
[50] .con_initcall.ini PROGBITS c134cc60 34dc60 00000c 00 WA 0 0 4
[51] .rel.con_initcall REL 00000000 2cd10f4 000018 08 82 50
4
[52] .security_initcal PROGBITS c134cc6c 34dc6c 000008 00 WA 0 0 4
[53] .rel.security_ini REL 00000000 2cd110c 000010 08 82 52
4
[54] .altinstructions PROGBITS c134cc74 34dc74 00282b 00 A 0 0 4
[55] .rel.altinstructi REL 00000000 2cd111c 003590 08 82 54
4
[56] .altinstr_replace PROGBITS c134f49f 35049f 000b38 00 AX 0 0 1
[57] .rel.altinstr_rep REL 00000000 2cd46ac 000070 08 82 56
4
[58] .exit.text PROGBITS c134ffd8 350fd8 000afb 00 AX 0 0 1
[59] .rel.exit.text REL 00000000 2cd471c 000cd0 08 82 58
4
[60] .init.ramfs PROGBITS c1351000 352000 000086 00 A 0 0 1
[61] .data.percpu PROGBITS c1351100 352100 004a64 00 WA 0 0
128
[62] .rel.data.percpu REL 00000000 2cd53ec 000028 08 82 61
4
[63] .bss NOBITS c1356000 356b64 0b8000 00 WA 0 0
4096
[64] .comment PROGBITS 00000000 356b64 00ac80 00 0 0 1
[65] .debug_aranges PROGBITS 00000000 3617e4 009668 00 0 0 1
[66] .rel.debug_arange REL 00000000 2cd5414 005bd8 08 82 65
4
[67] .debug_pubnames PROGBITS 00000000 36ae4c 030986 00 0 0 1
[68] .rel.debug_pubnam REL 00000000 2cdafec 001e00 08 82 67
4
[69] .debug_info PROGBITS 00000000 39b7d2 2140b0c 00 0 0
1
[70] .rel.debug_info REL 00000000 2cdcdec ef2e88 08 82 69
4
[71] .debug_abbrev PROGBITS 00000000 24dc2de 10715e 00 0 0
1
[72] .debug_line PROGBITS 00000000 25e343c 1d3b5a 00 0 0
1
[73] .rel.debug_line REL 00000000 3bcfc74 003018 08 82 72
4
[74] .debug_frame PROGBITS 00000000 27b6f98 05d8d8 00 0 0
4
[75] .rel.debug_frame REL 00000000 3bd2c8c 031c60 08 82 74
4
[76] .debug_str PROGBITS 00000000 2814870 0d0f7d 01 MS 0 0
1
[77] .debug_loc PROGBITS 00000000 28e57ed 280299 00 0 0
1
[78] .rel.debug_loc REL 00000000 3c048ec 1abdc0 08 82 77
4
[79] .debug_ranges PROGBITS 00000000 2b65a86 061950 00 0 0
1
[80] .rel.debug_ranges REL 00000000 3db06ac 05b3c0 08 82 79
4
[81] .shstrtab STRTAB 00000000 2bc73d6 0002fb 00 0 0
1
[82] .symtab SYMTAB 00000000 3e0ba6c 07fa60 10 83
22028 4
[83] .strtab STRTAB 00000000 3e8b4cc 0a6a77 00 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)
[EMAIL PROTECTED] linux-2.6.21.i686]$
--
Summary: addr2line fails on relocatable linux kernel
Product: binutils
Version: 2.18 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: binutils
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: hjl at lucon dot org
CC: bug-binutils at gnu dot org
http://sourceware.org/bugzilla/show_bug.cgi?id=4756
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