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unreferenced local symbols generated in .dynsym
- From: Roland McGrath <roland at redhat dot com>
- To: binutils at sources dot redhat dot com
- Date: Tue, 22 Apr 2003 23:23:34 -0700
- Subject: unreferenced local symbols generated in .dynsym
Doing:
gcc -x c /dev/null -shared -nostdlib -o null.so -s
readelf -Wsr null.so
shows:
There are no relocations in this file.
Symbol table '.dynsym' contains 15 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 00000000 0 NOTYPE LOCAL DEFAULT UND
1: 00000094 0 SECTION LOCAL DEFAULT 1
2: 000000e4 0 SECTION LOCAL DEFAULT 2
3: 000001d4 0 SECTION LOCAL DEFAULT 3
4: 0000020c 0 SECTION LOCAL DEFAULT 4
5: 0000120c 0 SECTION LOCAL DEFAULT 5
6: 0000120c 0 SECTION LOCAL DEFAULT 6
7: 00001264 0 SECTION LOCAL DEFAULT 7
8: 00001270 0 SECTION LOCAL DEFAULT 8
9: 00000000 0 SECTION LOCAL DEFAULT 9
10: 0000120c 0 OBJECT GLOBAL DEFAULT ABS _DYNAMIC
11: 00001270 0 NOTYPE GLOBAL DEFAULT ABS __bss_start
12: 00001270 0 NOTYPE GLOBAL DEFAULT ABS _edata
13: 00001264 0 OBJECT GLOBAL DEFAULT ABS _GLOBAL_OFFSET_TABLE_
14: 00001270 0 NOTYPE GLOBAL DEFAULT ABS _end
There should never be local symbols in .dynsym unless they are referenced
by dynamic relocs. Other superfluous symbols like the FILE symbol got
removed, but the section symbols remain no matter what I do. This is buggy.