Re: symbol maintenance

Fabian Cenedese
2006-11-28T11:39:24Z

>> This is a gdb 6.5 cross-compiled with cygwin on WinXP for ppc.
>>
>> (gdb) file gccext3.x
>> Reading symbols from /data/gdb-6.5/gdb/gccext3.x...unknown symbol type 0x1e...ex
>> panding to full symbols...unsupported const value attribute form: 'DW_FORM_strin
>> g'...const value length mismatch for 'ciOffline', got 8, expected 0...done.
>
>Those look more serious. GDB is trying to read DWARF debugging
>information, and it's malformed. What compiler are you using? What
>does 'objdump -h gccext3.x' say?

The used compiler is gcc 4.0.2, cross compiled for ppc.
The files for gccext3 were compiled with -gdwarf-2 (no +, no O).

Output of objdump -h gccext3.x:
(Sections 0, 15-18 are selfmade, necessary for the embedded target)

gccext3.x: file format elf32-big

Sections:
Idx Name Size VMA LMA File off Algn
0 .vtable 00001444 00000000 00000000 00010000 2**0
CONTENTS, ALLOC, LOAD, READONLY, CODE
1 .text 00099ff0 00001444 00001444 00011444 2**2
CONTENTS, ALLOC, LOAD, READONLY, CODE
2 .rodata 0000b720 0009b438 0009b438 000ab438 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
3 .eh_frame 00000970 000a6b58 000a6b58 000b6b58 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
4 .ctors 000000d8 000a74c8 000a74c8 000b74c8 2**2
CONTENTS, ALLOC, LOAD, DATA
5 .dtors 00000018 000a75a0 000a75a0 000b75a0 2**2
CONTENTS, ALLOC, LOAD, DATA
6 .got2 000002b0 000a75b8 000a75b8 000b75b8 2**0
CONTENTS, ALLOC, LOAD, DATA
7 .fixup 00000448 000a7868 000a7868 000b7868 2**2
CONTENTS, ALLOC, LOAD, DATA
8 .gcc_except_table 000000c8 000a7cb0 000a7cb0 000b7cb0 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
9 .comment 00000ccf 000a7d78 000a7d78 000cbae4 2**0
CONTENTS, READONLY
10 .data 0000112c 000a8a48 000a8a48 000b8a48 2**3
CONTENTS, ALLOC, LOAD, DATA
11 .sdata 000000b0 000a9b74 000a9b74 000b9b74 2**2
CONTENTS, ALLOC, LOAD, DATA
12 .sbss 00000358 000a9c24 000a9c24 000b9c24 2**2
ALLOC
13 .sdata2 00000000 000a9f7c 000a9f7c 000b9f7c 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
14 .bss 000028cc 000a9f80 000a9f80 000b9f7c 2**4
ALLOC
15 .startup 0000f270 000ac84c 000ac84c 000bc84c 2**2
CONTENTS, ALLOC, LOAD, READONLY, CODE
16 .struct_def 00000014 000bbabc 000bbabc 000cbabc 2**0
CONTENTS, ALLOC, LOAD, DATA
17 .struct_nam 00000014 000bbad0 000bbad0 000cbad0 2**0
CONTENTS, ALLOC, LOAD, DATA
18 .cache 00000000 000bc000 000bc000 000cc7b3 2**0
CONTENTS
19 .debug_abbrev 0001748c 00000000 00000000 000cc7b3 2**0
CONTENTS, READONLY, DEBUGGING
20 .debug_info 000d77c6 00000000 00000000 000e3c3f 2**0
CONTENTS, READONLY, DEBUGGING
21 .debug_line 000189ba 00000000 00000000 001bb405 2**0
CONTENTS, READONLY, DEBUGGING
22 .debug_frame 00014528 00000000 00000000 001d3dc0 2**2
CONTENTS, READONLY, DEBUGGING
23 .debug_pubnames 00016f20 00000000 00000000 001e82e8 2**0
CONTENTS, READONLY, DEBUGGING
24 .debug_aranges 000030d0 00000000 00000000 001ff208 2**0
CONTENTS, READONLY, DEBUGGING
25 .debug_str 0000b420 00000000 00000000 002022d8 2**0
CONTENTS, READONLY, DEBUGGING
26 .debug_loc 0001c2b9 00000000 00000000 0020d6f8 2**0
CONTENTS, READONLY, DEBUGGING
27 .debug_ranges 00001890 00000000 00000000 002299b1 2**0
CONTENTS, READONLY, DEBUGGING
28 .stab 00005004 00000000 00000000 0022b244 2**2
CONTENTS, READONLY, DEBUGGING
29 .stabstr 00002466 00000000 00000000 00230248 2**0
CONTENTS, READONLY, DEBUGGING

Thanks

bye Fabi