------- Additional Comments From hjl dot tools at gmail dot com 2008-03-07
16:53 -------
(In reply to comment #12)
> Could you please e-mail me "good" and "bad"? I wonder if PPC is similar to
> MIPS
> in using small data sections.
"good" and "bad" are identical:
bash-3.2$ readelf -Ss good
There are 7 section headers, starting at offset 0x88:
Section Headers:
[Nr] Name Type Addr Off Size ES Flg Lk Inf Al
[ 0] NULL 00000000 000000 000000 00 0 0 0
[ 1] .data PROGBITS 10010054 000054 000008 00 WA 0 0 1
[ 2] .sbss NOBITS 1001005c 00005c 000008 00 WA 0 0 4
[ 3] .bss NOBITS 10010068 00005c 000020 00 WA 0 0 8
[ 4] .shstrtab STRTAB 00000000 00005c 00002c 00 0 0 1
[ 5] .symtab SYMTAB 00000000 0001a0 0000b0 10 6 4 4
[ 6] .strtab STRTAB 00000000 000250 000025 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)
Symbol table '.symtab' contains 11 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 00000000 0 NOTYPE LOCAL DEFAULT UND
1: 10010054 0 SECTION LOCAL DEFAULT 1
2: 1001005c 0 SECTION LOCAL DEFAULT 2
3: 10010068 0 SECTION LOCAL DEFAULT 3
4: 10010078 15 OBJECT GLOBAL DEFAULT 3 ef
5: 10010068 15 OBJECT GLOBAL DEFAULT 3 df
6: 10010060 4 OBJECT GLOBAL DEFAULT 2 e4
7: 1001005c 0 NOTYPE GLOBAL DEFAULT ABS __bss_start
8: 1001005c 4 OBJECT GLOBAL DEFAULT 2 d4
9: 1001005c 0 NOTYPE GLOBAL DEFAULT ABS _edata
10: 10010088 0 NOTYPE GLOBAL DEFAULT ABS _end
bash-3.2$
ef is in .bss since its size, 15, > 8. e4 is in .sbss since its size, 4,
<= 8.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=5866
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