 Debugging An Arm Binary On An X86 Machine |
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  May 3 2006, 04:50 PM
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Group: Members Posts: 6 Joined: 24-April 06 Member No.: 9,695  |
I have an application which runs smoothly on my development machine but occasionally segfaults when I run the cross-compiled binary on my Zaurus. Debugging it on the Zaurus itself would be tedious. So I'm using gdb's ARM simulator, but I only get so far:
$ file test.x test.x: ELF 32-bit LSB executable, ARM, version 1 (ARM), for GNU/Linux 2.0.0, dynamically linked (uses shared libs), for GNU/Linux 2.0.0, not stripped $ arm-linux-nm test.x 0001043c ? _DYNAMIC 00010424 ? _GLOBAL_OFFSET_TABLE_ 00008404 R _IO_stdin_used 00010418 ? __CTOR_END__ 00010414 ? __CTOR_LIST__ 00010420 ? __DTOR_END__ 0001041c ? __DTOR_LIST__ 000104dc A __bss_end__ 000104dc A __bss_start 000104dc A __bss_start__ 00010408 D __data_start w __deregister_frame_info 000083a8 t __do_global_ctors_aux 000082ec t __do_global_dtors_aux 000104dc A __end__ w __gmon_start__ U __libc_start_main@@GLIBC_2.0 w __register_frame_info 000104dc A _bss_end__ 000104dc A _edata 000104dc A _end 000083f0 ? _fini 00008238 ? _init 00008280 T _start U abort@@GLIBC_2.0 000082b4 t call_gmon_start 00010410 d completed.4 00010408 W data_start 0000835c t fini_dummy 00010414 d force_to_data 00010414 d force_to_data 000082b4 t gcc2_compiled. 000083a8 t gcc2_compiled. 000083f0 t gcc2_compiled. 000082ec t gcc2_compiled. 0000836c t gcc2_compiled. 000083e0 t init_dummy 0000836c T main 0001040c d p.3 $ arm-elf-gdb test.x GNU gdb 5.0 Copyright 2000 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-elf"... (gdb) target sim Connected to the simulator. (gdb) load Loading section .interp, size 0x13 vma 0x80f4 Loading section .note.ABI-tag, size 0x20 vma 0x8110 Loading section .hash, size 0x30 vma 0x8130 Loading section .dynsym, size 0x70 vma 0x8160 Loading section .dynstr, size 0x57 vma 0x81d0 Loading section .gnu.version, size 0xe vma 0x8228 Loading section .gnu.version_r, size 0x20 vma 0x8238 Loading section .rel.got, size 0x8 vma 0x8258 Loading section .rel.plt, size 0x20 vma 0x8260 Loading section .init, size 0x18 vma 0x8280 Loading section .plt, size 0x50 vma 0x8298 Loading section .text, size 0x158 vma 0x82e8 Loading section .fini, size 0x14 vma 0x8440 Loading section .rodata, size 0x10 vma 0x8454 Loading section .data, size 0xc vma 0x10464 Loading section .ctors, size 0x8 vma 0x10470 Loading section .dtors, size 0x8 vma 0x10478 Loading section .got, size 0x20 vma 0x10480 Loading section .dynamic, size 0xa0 vma 0x104a0 Start address 0x82e8 Transfer rate: 8704 bits in <1 sec. (gdb) run Starting program: [...]/test.x Program exited with code 0324. [Switching to process 0] (gdb) I imagine the simulation fails because it can't find some or all of these symbols: w __deregister_frame_info w __gmon_start__ U __libc_start_main@@GLIBC_2.0 w __register_frame_info U abort@@GLIBC_2.0 So how do I link libraries into the simulation? I haven't found an answer in the gdb manual. |
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troika Debugging An Arm Binary On An X86 Machine May 3 2006, 04:50 PM
lardman Not answering your question, but afaik, you can de... May 4 2006, 06:40 AM troika QUOTE(lardman @ May 4 2006, 07:40 AM)Not answ... May 5 2006, 01:35 PM  |
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