1 ToDo list for elfutils -*-outline-*-
4 Time-stamp: <2009-02-05 22:08:01 drepper>
8 Remove everywhere. Use mkdir -p.
14 Currently the elf_update function trusts the user blindly if the
15 ELF_F_LAYOUT flag is set. This is OK if the data is prepared by a
16 ELF_C_NULL call but not if the user prepared the data herself
18 ** break out archive handling from elf_begin
20 The handling of archives (especially of the symbol tables) must be
21 broken out of elf_begin. There are several different forms of
22 archives and only when having the archive handling separately this
25 ** shdrs in read-only files
27 When reading (ELF_C_READ*) then there is no need to malloc Shdr
28 structure in elfXX_getshdr if file is mmaped and unaligned access
29 is allowed or the structure is aligned. Use ELF_F_MALLOCED flag
35 ** More memory access checks needed
37 All accesses to the debug sections should make sure the offsets are
38 valid. This is currently especially a problem with leb128 accesses.
40 ** Low level macro information operations
42 in 5.11.3 are not implemented. gcc currently does not emit this
43 information so I cannot test it.
45 ** Rename dwarf_getabbrev
64 ** add demangler support
66 Use demangler from libiberty.
68 ** add support to read debugging symbols
70 Implement -l option for BSD and POSIX format
75 ** support SHT_SYMTAB_SHNDX
77 should be removed if not needed anymore
81 ** sanity check .rel sh_info content
83 the sh_info of all .rel sections with the same name must point to
84 sections which also have the same name
88 to locate shared libraries also use /etc/ld.so.conf
90 ** handle object files for different architectures
92 ld.so is expected to ignore object files for different architectures and
93 continue looking for a matching file (e.g., ignore 32-bit binaries on
94 64-bit platforms and vice versa). We probably need the same in ld.
96 ** reuse after elf_end
98 Some files are closed using elf_end. They are removed from memory only
99 if no reference is left (especially for archives this is a problem).
100 The old mapping should be reused in that case. The problem is worse
101 for files which are not mapped read-only (archives again).
103 ** size for STT_SECTION entries
105 The STT_SECTION entries have zero for the size but can easily get
106 the size of the section.
110 Not implemented at all in the moment except for recognition of the option
113 ** variables with aliases in executables
115 When linking an executable with a references against a variable in a
116 DSO, create symbol table entries for all the aliases of the variable
117 in the DSO and create a relocation for one of them (a non-weak
124 1st GOT entry == _DYNAMIC
126 check versioning info:
128 always BASE in verdef
129 sh_size/sh_entsize matches last offset != 0
131 check whether any relocation is for a merge-able section
133 check TLS relocation depencies
135 Check content of .eh_frame_hdr, .eh_frame, .gcc_except_table
139 check that R_386_TLS_GD is followed by R_386_PLT32 for __tls_get_addr
143 prelink generated files
147 ** treat relocation sections special
149 Differences in the relocation sections can be ignored if all
150 the same symbols with the same targets are present and the order
151 of overlapping relocations doesn't change. There really never
152 should be overlapping relocations but who knows.
156 Sun has it. Can modify sections which are not in segments.
159 Append string to the comment section of the ELF object
160 files. If string contains embedded blanks, it must be
161 enclosed in quotation marks.
163 -c Compress the contents of the comment section of the
164 ELF object files. All duplicate entries are removed.
165 The ordering of the remaining entries is not dis-
168 -d Delete the contents of the comment section from the
169 ELF object files. The section header for the comment
170 section is also removed.
173 Specify the name of the comment section to access if
174 other than .comment. By default, mcs deals with the
175 section named .comment. This option can be used to
176 specify another section. mcs can take multiple -n
177 options to allow for specification of multiple sec-
180 -p Print the contents of the comment section on the stan-
181 dard output. Each section printed is tagged by the
182 name of the file from which it was extracted, using
183 the format file[member_name]: for archive files and
184 file: for other files.
186 -V Print on standard error the version number of mcs.
189 eval:(hide-sublevels 3)