1 TODO list for every uClibc release:
2 -------------------------------------------------
3 *) Test cris, i386, mips, mipsel, sh, x86_64, arm, armeb, and powerpc
4 with the latest LTP testsuite. Fix any regressions and post LTP
5 testsuite results for each architecture on uclibc.org.
6 *) Audit header files. Remove prototypes for all functions that
7 are not supported -- especially needed for the libm headers.
8 *) Audit header files. When options are disabled, also disable
9 them in the include files as well by checking for the proper
10 define from include/bits/uClibc_config.h (pulled in from features.h)
14 General release feature sets:
15 -------------------------------------------------
16 .29 will be mostly as-is
17 .30 will be the NPTL merge
18 .31 for the no-kernel-headers fix, etc, etc.
22 TODO list for the uClibc 0.9.29 release:
23 -------------------------------------------------
24 *) as many of the arch-specific issues as possible
25 *) Remove N instances of libc_hidden_proto() from uClibc internals.
26 Instead add internal only header(s) defining all hidden prototypes.
27 This will avoid clutter and guarantee prototype consistancy.
28 *) The __is*_l() functions were all removed, such that we now only export
29 the is*_l() functions (no prefix). Before, we had the prefixed versions
30 for use by libstdc++ and weak versions without prefixes exported because
31 those functions belong to no std (unless you call glibc a std). This should
32 be fixed. Similar problems likely were created elsewhere.
34 http://bugs.uclibc.org/view.php?id=420
35 http://bugs.uclibc.org/view.php?id=539
36 *) bug in getopt handling:
37 http://bugs.uclibc.org/view.php?id=61
38 http://www.uclibc.org/lists/uclibc/2006-January/013851.html
41 TODO list for the uClibc 1.0.0 release:
42 -------------------------------------------------
43 *) glob / fnmatch tests fail
44 *) regex should pass AT&T conformance tests
45 *) Finish hiding uClibc internal symbols from our exported namespace
46 *) Add system for generating minimal system call asm wrappers that abuse
47 the C ABI to minimize amount of register/stack manipulation
48 *) Explicity add some sortof CONFIG_LINUX_2_2_ABI, CONFIG_LINUX_2_4_ABI
49 and CONFIG_LINUX_2_6_ABI type options, rather than having the abi
50 depend on the selected set of kernel headers. This will likely also
51 require that we provide a set of kernel headers (probably a derivitive
52 of Mazur's linux-libc-headers) that can supplies the 2.2, 2.4, and 2.6
54 *) Documentation updates:
55 *) Write a uClibc HOWTO document
56 *) Update README document
57 *) Update INSTALL document
58 *) Update docs/Glibc_vs_uClibc_Differences.txt document
59 and fully document all differences between the feature
60 set of uClibc and glibc.
61 *) Update docs/uClibc_vs_SuSv3.txt document
62 *) Update docs/threads.txt document
63 *) Write man pages for ldd and ldconfig utility binaries
64 *) Implement some mechanism (perhaps encoded in the .so name,
65 perhaps using an abi tag magically embedded into each object)
66 for flagging config options that break the ABI. Options
67 such as UCLIBC_HAS_SOFT_FLOAT, UCLIBC_HAS_THREADS, UCLIBC_HAS_LOCALE,
68 and perhaps others (finalize list) produce a lib with a differing
69 ABI. Make it so apps cannot use an ABI mis-matched uClibc.
70 This is most easily done using symbol versioning...
71 *) Implement the long double versions of math funcs
72 using wrappers on top of the double versions (size / precision
73 trade off where size clearly wins).
74 *) Make all small objects (>~50 bytes) into either inlines or
76 *) Cleanup / rewrite sysconf.c. It should get some information
77 from ldso (such as HZ). Other stuff it currently just makes
78 up, which is obviously wrong. Also bits/uClibc_clk_tck.h
79 needs to be updated at the same time to get proper HZ values.
80 *) poll emulation using select() for old 2.0.x uClinux kernels
81 in libc/sysdeps/linux/common/poll.c fails some python self-tests.
82 Of course, modern systems using the actuall poll() syscall work fine.
83 *) Cleanup/scrub all the Makefile copyright junk
84 *) Fix dlopen, for both static and dynamic cases, and make it
85 fully comply with SuSv3
86 *) From the the ELF spec "...All shared object initializations happen
87 before the executable file gains control. ... Before the initialization
88 code for any object A is called, the initialization code for any other
89 objects that object A depends on are called. For these purposes, an object
90 A depends on another object B, if B appears in Ads list of needed objects
91 (recorded in the DT_NEEDED entries of the dynamic structure). The order of
92 initialization for circular dependencies is undefined." uClibc's shared
93 lib loader should be fixed to run ctors in the specified order.
96 TODO list for AFTER the uClibc 1.0.0 release:
97 -------------------------------------------------
98 *) Add support for Linux 2.6.x fast vsyscalls
99 *) Enable pristine source tree builds
100 *) Fix regex so it isn't so stinking big
101 *) Fix glob so it isn't so stinking big
102 *) run 'nm -D --size-sort -t d libuClibc-0.9.26.so' and work on the
103 biggest things (i.e. stuff at the end of the list) to make
105 <more wishlist items here>
109 -------------------------------------------------
111 ldso is not implemented
113 update crt1 code again for nommu (http://bugs.uclibc.org/view.php?id=538)
114 recruit jbowler and integrate thumb support
116 errno.c test segfaults causes segfault in clone.S (seems to be in glibc too)
118 add support for fast system calls
120 ldso is not implemented
122 ldso lazy relocation doesnt work
124 need a sigaction.c since common one doesnt work (signal tests)
125 ldso needs to be updated since it's totally broken atm
127 pthread support, linktime warning support (implies GAS patches),
128 general touchups, testing, ldso.
130 need to be updated to new ldso changes and unification of the
131 two uClibc_main funcs (__uClibc_start_main doesnt exist anymore)
135 -----------------------------------------------------------------------------
138 1) Little things that need fixing:
139 ----------------------------------
140 a) Fix bug in *printf: outdigit precison bug
141 b) Check that gnu/bsd extension members tm_gmtoff and tm_zone in struct tm
142 are respected where they should be.
143 c) Implement the obstack printf funcs for glibc compat.
144 d) Implement glibc 'a' flag for scanf string conversions.
145 e) Allow use of the older non-table-based ctype functions when using
146 stub locale support. (smaller)
148 2) Additional str{f|p}time issues.
149 ----------------------------------
150 a) Spacing issue wrt strptime.
151 b) Support locale specific alternate digits. (data is in place)
152 c) Support locale era in year designations. (data is in place)
153 d) Deal with mb format string issues in strftime.
154 e) Implement wcsftime.
156 3) Other locale issues (my implementation):
157 -------------------------------------------
158 a) Do a little more clean up of ctype and wctype.
159 b) Rework of the locale data organization to make using locales reasonable
160 when staticly linking. (mmap)
161 c) Rewrite the locale data generation tools to process the text specifications
162 rather than relying on glibc.
163 d) Adapt regex lib to use my collation data and add the necessary collating
164 item tables to support SUSv3 required features.
165 e) transliteration of unsupported wchars in 8-bit locales (like glibc).
166 f) Support ISO/IEC 14652 draft locale extensions (LC_PAPER, etc).
167 g) Implement strfrom.
168 h) Shift-state codeset locale support?
172 a) Port uClibc to other OSs (including elks), or even bare metal (libgloss).
173 b) Write a space-efficient gettext substitute, to avoid storing large amounts