From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13466 invoked by alias); 23 Apr 2004 16:37:31 -0000 Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sources.redhat.com Received: (qmail 13437 invoked from network); 23 Apr 2004 16:37:25 -0000 Received: from unknown (HELO server.bluepeach.com) (66.189.17.154) by sources.redhat.com with SMTP; 23 Apr 2004 16:37:25 -0000 Received: from server.bluepeach.com [10.0.1.2] by server.bluepeach.com (AppleMailServer 10.2.3.0) id 12018 via TCP with SMTP; Fri, 23 Apr 2004 12:36:41 -0400 Received: from 10.0.1.2 (SquirrelMail authenticated user rschmitt) by mail.bluepeach.com with HTTP; Fri, 23 Apr 2004 12:36:41 -0400 (EDT) Message-ID: <56026.10.0.1.2.1082738201.squirrel@mail.bluepeach.com> In-Reply-To: <20040423161015.GA11696@nevyn.them.org> References: <55879.10.0.1.2.1082736208.squirrel@mail.bluepeach.com> <20040423161015.GA11696@nevyn.them.org> Date: Fri, 23 Apr 2004 16:41:00 -0000 Subject: Re: Relocating Static Local Variables BUG? From: "Richard Schmitt" To: "Daniel Jacobowitz" Cc: "Richard Schmitt" ,gdb@sources.redhat.com, rishi75@hotmail.com Reply-To: rschmitt@bluepeach.com User-Agent: SquirrelMail/1.4.2 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-SW-Source: 2004-04/txt/msg00147.txt.bz2 The version of GCC is 3.3.1 The version of GDB is 6.1 (downloaded latest release) The commands to generate the elf are: gcc -o test.exe -g test.c objcopy -O elf32-little test.exe test.elf Built this way, the code is not relocatable, so there is no output of the -r command to readelf. I've done it this way just to demonstrate the issue that gdb has with relocating symbols, which is independent of code generated as relocatable. The -s output is shown below. Symbol table '.dynsym' contains 4 entries: Num: Value Size Type Bind Vis Ndx Name 0: 00000000 0 NOTYPE LOCAL DEFAULT UND 1: 08048234 251 FUNC GLOBAL DEFAULT UND __libc_start_main@GLIBC_2.0 (2) 2: 08048454 4 OBJECT GLOBAL DEFAULT 14 _IO_stdin_used 3: 00000000 0 NOTYPE WEAK DEFAULT UND __gmon_start__ Symbol table '.symtab' contains 111 entries: Num: Value Size Type Bind Vis Ndx Name 0: 00000000 0 NOTYPE LOCAL DEFAULT UND 1: 080480f4 0 SECTION LOCAL DEFAULT 1 2: 08048108 0 SECTION LOCAL DEFAULT 2 3: 08048128 0 SECTION LOCAL DEFAULT 3 4: 0804814c 0 SECTION LOCAL DEFAULT 4 5: 0804818c 0 SECTION LOCAL DEFAULT 5 6: 080481d2 0 SECTION LOCAL DEFAULT 6 7: 080481dc 0 SECTION LOCAL DEFAULT 7 8: 080481fc 0 SECTION LOCAL DEFAULT 8 9: 08048204 0 SECTION LOCAL DEFAULT 9 10: 0804820c 0 SECTION LOCAL DEFAULT 10 11: 08048224 0 SECTION LOCAL DEFAULT 11 12: 08048250 0 SECTION LOCAL DEFAULT 12 13: 08048434 0 SECTION LOCAL DEFAULT 13 14: 08048450 0 SECTION LOCAL DEFAULT 14 15: 08049458 0 SECTION LOCAL DEFAULT 15 16: 08049464 0 SECTION LOCAL DEFAULT 16 17: 08049468 0 SECTION LOCAL DEFAULT 17 18: 08049530 0 SECTION LOCAL DEFAULT 18 19: 08049538 0 SECTION LOCAL DEFAULT 19 20: 08049540 0 SECTION LOCAL DEFAULT 20 21: 08049544 0 SECTION LOCAL DEFAULT 21 22: 08049558 0 SECTION LOCAL DEFAULT 22 23: 00000000 0 SECTION LOCAL DEFAULT 23 24: 00000000 0 SECTION LOCAL DEFAULT 24 25: 00000000 0 SECTION LOCAL DEFAULT 25 26: 00000000 0 SECTION LOCAL DEFAULT 26 27: 00000000 0 SECTION LOCAL DEFAULT 27 28: 00000000 0 SECTION LOCAL DEFAULT 28 29: 00000000 0 SECTION LOCAL DEFAULT 29 30: 00000000 0 SECTION LOCAL DEFAULT 30 31: 00000000 0 SECTION LOCAL DEFAULT 31 32: 00000000 0 SECTION LOCAL DEFAULT 32 33: 00000000 0 SECTION LOCAL DEFAULT 33 34: 00000000 0 SECTION LOCAL DEFAULT 34 35: 00000000 0 FILE LOCAL DEFAULT ABS 36: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 37: 00000000 0 FILE LOCAL DEFAULT ABS 38: 00000000 0 FILE LOCAL DEFAULT ABS 39: 00000000 0 FILE LOCAL DEFAULT ABS abi-note.S 40: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 41: 00000000 0 FILE LOCAL DEFAULT ABS abi-note.S 42: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 43: 00000000 0 FILE LOCAL DEFAULT ABS abi-note.S 44: 00000000 0 FILE LOCAL DEFAULT ABS 45: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 46: 00000000 0 FILE LOCAL DEFAULT ABS 47: 00000000 0 FILE LOCAL DEFAULT ABS 48: 00000000 0 FILE LOCAL DEFAULT ABS abi-note.S 49: 00000000 0 FILE LOCAL DEFAULT ABS init.c 50: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 51: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 52: 00000000 0 FILE LOCAL DEFAULT ABS initfini.c 53: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 54: 00000000 0 FILE LOCAL DEFAULT ABS 55: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 56: 00000000 0 FILE LOCAL DEFAULT ABS 57: 00000000 0 FILE LOCAL DEFAULT ABS 58: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 59: 08048274 0 FUNC LOCAL DEFAULT 12 call_gmon_start 60: 00000000 0 FILE LOCAL DEFAULT ABS crtstuff.c 61: 08049530 0 OBJECT LOCAL DEFAULT 18 __CTOR_LIST__ 62: 08049538 0 OBJECT LOCAL DEFAULT 19 __DTOR_LIST__ 63: 08049540 0 OBJECT LOCAL DEFAULT 20 __JCR_LIST__ 64: 08049460 0 OBJECT LOCAL DEFAULT 15 p.0 65: 08049558 1 OBJECT LOCAL DEFAULT 22 completed.1 66: 080482a0 0 FUNC LOCAL DEFAULT 12 __do_global_dtors_aux 67: 080482e0 0 FUNC LOCAL DEFAULT 12 frame_dummy 68: 00000000 0 FILE LOCAL DEFAULT ABS crtstuff.c 69: 08049534 0 OBJECT LOCAL DEFAULT 18 __CTOR_END__ 70: 0804953c 0 OBJECT LOCAL DEFAULT 19 __DTOR_END__ 71: 08049464 0 OBJECT LOCAL DEFAULT 16 __FRAME_END__ 72: 08049540 0 OBJECT LOCAL DEFAULT 20 __JCR_END__ 73: 08048410 0 FUNC LOCAL DEFAULT 12 __do_global_ctors_aux 74: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 75: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 76: 00000000 0 FILE LOCAL DEFAULT ABS initfini.c 77: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 78: 00000000 0 FILE LOCAL DEFAULT ABS 79: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 80: 00000000 0 FILE LOCAL DEFAULT ABS 81: 00000000 0 FILE LOCAL DEFAULT ABS 82: 00000000 0 FILE LOCAL DEFAULT ABS /usr/src/packages/BUILD/g 83: 00000000 0 FILE LOCAL DEFAULT ABS test.c 84: 0804955c 4 OBJECT LOCAL DEFAULT 22 test.0 85: 08049560 4 OBJECT LOCAL DEFAULT 22 test3 86: 00000000 0 FILE LOCAL DEFAULT ABS elf-init.c 87: 08049468 0 OBJECT GLOBAL DEFAULT 17 _DYNAMIC 88: 08048450 4 OBJECT GLOBAL DEFAULT 14 _fp_hw 89: 08049458 0 NOTYPE GLOBAL DEFAULT ABS __fini_array_end 90: 0804945c 0 OBJECT GLOBAL HIDDEN 15 __dso_handle 91: 080483a0 96 FUNC GLOBAL DEFAULT 12 __libc_csu_fini 92: 0804820c 0 FUNC GLOBAL DEFAULT 10 _init 93: 08048250 0 FUNC GLOBAL DEFAULT 12 _start 94: 08049458 0 NOTYPE GLOBAL DEFAULT ABS __fini_array_start 95: 08048340 88 FUNC GLOBAL DEFAULT 12 __libc_csu_init 96: 08049558 0 NOTYPE GLOBAL DEFAULT ABS __bss_start 97: 0804830c 43 FUNC GLOBAL DEFAULT 12 main 98: 08048234 251 FUNC GLOBAL DEFAULT UND __libc_start_main@@GLIBC_ 99: 08049458 0 NOTYPE GLOBAL DEFAULT ABS __init_array_end 100: 08049458 0 NOTYPE WEAK DEFAULT 15 data_start 101: 08048434 0 FUNC GLOBAL DEFAULT 13 _fini 102: 08049558 0 NOTYPE GLOBAL DEFAULT ABS _edata 103: 08048400 0 FUNC GLOBAL HIDDEN 12 __i686.get_pc_thunk.bx 104: 08049544 0 OBJECT GLOBAL DEFAULT 21 _GLOBAL_OFFSET_TABLE_ 105: 08049564 0 NOTYPE GLOBAL DEFAULT ABS _end 106: 08049458 0 NOTYPE GLOBAL DEFAULT ABS __init_array_start 107: 08048454 4 OBJECT GLOBAL DEFAULT 14 _IO_stdin_used 108: 08049458 0 NOTYPE GLOBAL DEFAULT 15 __data_start 109: 00000000 0 NOTYPE WEAK DEFAULT UND _Jv_RegisterClasses 110: 00000000 0 NOTYPE WEAK DEFAULT UND __gmon_start__ > - how did you create the ELF object? > - What to readelf -r and readelf -s have to say about the ELF object? > > -- > Daniel Jacobowitz > MontaVista Software Debian GNU/Linux Developer >