Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | ToDo list for elfutils -*-outline-*- |
| 2 | ---------------------- |
| 3 | |
Ulrich Drepper | acb8983 | 2005-08-04 07:01:49 +0000 | [diff] [blame] | 4 | Time-stamp: <2005-08-03 20:38:01 drepper> |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 5 | |
| 6 | * mkinstalldirs |
| 7 | |
| 8 | Remove everywhere. Use mkdir -p. |
| 9 | |
| 10 | * libelf: |
| 11 | |
| 12 | ** verify section |
| 13 | |
| 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 |
| 17 | |
| 18 | ** break out archive handling from elf_begin |
| 19 | |
| 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 |
| 23 | remains maintainable. |
| 24 | |
| 25 | |
| 26 | * libdwarf |
| 27 | |
| 28 | ** Should we do more error checking? |
| 29 | |
| 30 | Most functions don't check whether they get a NULL value passed for |
| 31 | a pointer argument. It could be argued that this is OK since it's |
| 32 | a bug inthe program. But perhaps one could catch the case and return |
| 33 | an error which would allow the program using libdwarf to have fewer |
| 34 | places with error checking. |
| 35 | |
| 36 | ** More memory access checks needed |
| 37 | |
| 38 | All accesses to the debug sections should make sure the offsets are |
| 39 | valid. This is currently especially a problem with leb128 accesses. |
| 40 | |
| 41 | ** Low level macro information operations |
| 42 | |
| 43 | in 5.11.3 are not implemented. gcc currently does not emit this |
| 44 | information so I cannot test it. |
| 45 | |
| 46 | ** Rename dwarf_getabbrev |
| 47 | |
| 48 | ** dwarf_loclist() |
| 49 | |
| 50 | This function and its interface seem to be misdesigned. The specification |
| 51 | is unclear and its changed between v2 and v2.1. Other implementation |
| 52 | implement even different behavior. |
| 53 | |
| 54 | |
| 55 | * nm: |
| 56 | |
| 57 | ** add demangler support |
| 58 | |
| 59 | Use demangler from libiberty. |
| 60 | |
| 61 | ** add support to read debugging symbols |
| 62 | |
| 63 | Implement -l option for BSD and POSIX format |
| 64 | |
| 65 | |
| 66 | * strip: |
| 67 | |
| 68 | ** support SHT_SYMTAB_SHNDX |
| 69 | |
| 70 | should be removed if not needed anymore |
| 71 | |
| 72 | * ld: |
| 73 | |
| 74 | ** sanity check .rel sh_info content |
| 75 | |
| 76 | the sh_info of all .rel sections with the same name must point to |
| 77 | sections which also have the same name |
| 78 | |
| 79 | ** use ld.so.conf |
| 80 | |
| 81 | to locate shared libraries also use /etc/ld.so.conf |
| 82 | |
| 83 | ** handle object files for different architectures |
| 84 | |
| 85 | ld.so is expected to ignore object files for different architectures and |
| 86 | continue looking for a matching file (e.g., ignore 32-bit binaries on |
| 87 | 64-bit platforms and vice versa). We probably need the same in ld. |
| 88 | |
| 89 | ** reuse after elf_end |
| 90 | |
| 91 | Some files are closed using elf_end. They are removed from memory only |
| 92 | if no reference is left (especially for archives this is a problem). |
| 93 | The old mapping should be reused in that case. The problem is worse |
| 94 | for files which are not mapped read-only (archives again). |
| 95 | |
| 96 | |
| 97 | ** size for STT_SECTION entries |
| 98 | |
| 99 | The STT_SECTION entries have zero for the size but can easily get |
| 100 | the size of the section. |
| 101 | |
| 102 | * elflint |
| 103 | |
| 104 | ** additional checks |
| 105 | |
| 106 | 1st GOT entry == _DYNAMIC |
| 107 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 108 | check versioning info: |
| 109 | |
| 110 | always BASE in verdef |
| 111 | sh_size/sh_entsize matches last offset != 0 |
| 112 | |
| 113 | check whether any relocation is for a merge-able section |
| 114 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 115 | ** relax |
| 116 | |
| 117 | prelink generated files |
| 118 | |
| 119 | |
| 120 | * mcs |
| 121 | |
| 122 | Sun has it. Can modify sections which are not in segments. |
| 123 | |
| 124 | -a string |
| 125 | Append string to the comment section of the ELF object |
| 126 | files. If string contains embedded blanks, it must be |
| 127 | enclosed in quotation marks. |
| 128 | |
| 129 | -c Compress the contents of the comment section of the |
| 130 | ELF object files. All duplicate entries are removed. |
| 131 | The ordering of the remaining entries is not dis- |
| 132 | turbed. |
| 133 | |
| 134 | -d Delete the contents of the comment section from the |
| 135 | ELF object files. The section header for the comment |
| 136 | section is also removed. |
| 137 | |
| 138 | -n name |
| 139 | Specify the name of the comment section to access if |
| 140 | other than .comment. By default, mcs deals with the |
| 141 | section named .comment. This option can be used to |
| 142 | specify another section. mcs can take multiple -n |
| 143 | options to allow for specification of multiple sec- |
| 144 | tion comments. |
| 145 | |
| 146 | -p Print the contents of the comment section on the stan- |
| 147 | dard output. Each section printed is tagged by the |
| 148 | name of the file from which it was extracted, using |
| 149 | the format file[member_name]: for archive files and |
| 150 | file: for other files. |
| 151 | |
| 152 | -V Print on standard error the version number of mcs. |
| 153 | |
| 154 | Local Variables: |
| 155 | eval:(hide-body) |
| 156 | End: |