blob: 318da823a8c7c8796bfefb5e4f33ddd8781f9912 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
ToDo list for elfutils -*-outline-*-
----------------------
Time-stamp: <2005-08-03 20:38:01 drepper>
* mkinstalldirs
Remove everywhere. Use mkdir -p.
* libelf:
** verify section
Currently the elf_update function trusts the user blindly if the
ELF_F_LAYOUT flag is set. This is OK if the data is prepared by a
ELF_C_NULL call but not if the user prepared the data herself
** break out archive handling from elf_begin
The handling of archives (especially of the symbol tables) must be
broken out of elf_begin. There are several different forms of
archives and only when having the archive handling separately this
remains maintainable.
* libdwarf
** Should we do more error checking?
Most functions don't check whether they get a NULL value passed for
a pointer argument. It could be argued that this is OK since it's
a bug inthe program. But perhaps one could catch the case and return
an error which would allow the program using libdwarf to have fewer
places with error checking.
** More memory access checks needed
All accesses to the debug sections should make sure the offsets are
valid. This is currently especially a problem with leb128 accesses.
** Low level macro information operations
in 5.11.3 are not implemented. gcc currently does not emit this
information so I cannot test it.
** Rename dwarf_getabbrev
** dwarf_loclist()
This function and its interface seem to be misdesigned. The specification
is unclear and its changed between v2 and v2.1. Other implementation
implement even different behavior.
* nm:
** add demangler support
Use demangler from libiberty.
** add support to read debugging symbols
Implement -l option for BSD and POSIX format
* strip:
** support SHT_SYMTAB_SHNDX
should be removed if not needed anymore
* ld:
** sanity check .rel sh_info content
the sh_info of all .rel sections with the same name must point to
sections which also have the same name
** use ld.so.conf
to locate shared libraries also use /etc/ld.so.conf
** handle object files for different architectures
ld.so is expected to ignore object files for different architectures and
continue looking for a matching file (e.g., ignore 32-bit binaries on
64-bit platforms and vice versa). We probably need the same in ld.
** reuse after elf_end
Some files are closed using elf_end. They are removed from memory only
if no reference is left (especially for archives this is a problem).
The old mapping should be reused in that case. The problem is worse
for files which are not mapped read-only (archives again).
** size for STT_SECTION entries
The STT_SECTION entries have zero for the size but can easily get
the size of the section.
* elflint
** additional checks
1st GOT entry == _DYNAMIC
check versioning info:
always BASE in verdef
sh_size/sh_entsize matches last offset != 0
check whether any relocation is for a merge-able section
** relax
prelink generated files
* mcs
Sun has it. Can modify sections which are not in segments.
-a string
Append string to the comment section of the ELF object
files. If string contains embedded blanks, it must be
enclosed in quotation marks.
-c Compress the contents of the comment section of the
ELF object files. All duplicate entries are removed.
The ordering of the remaining entries is not dis-
turbed.
-d Delete the contents of the comment section from the
ELF object files. The section header for the comment
section is also removed.
-n name
Specify the name of the comment section to access if
other than .comment. By default, mcs deals with the
section named .comment. This option can be used to
specify another section. mcs can take multiple -n
options to allow for specification of multiple sec-
tion comments.
-p Print the contents of the comment section on the stan-
dard output. Each section printed is tagged by the
name of the file from which it was extracted, using
the format file[member_name]: for archive files and
file: for other files.
-V Print on standard error the version number of mcs.
Local Variables:
eval:(hide-body)
End:
|
