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Arrange to hide uClibc internals

Update TODO list

Atsushi Nemoto writes:

>>>>> On Tue, 19 Oct 2004 13:28:34 -0600, Erik Andersen <andersen@codepoet.org> said:
>> BTW, top of uClibc TODO list is "Fix syscall() on mips". What is a
>> problem?

andersen> It appears that uClibc's syscall() for mips works ok for
andersen> syscalls with a few arguments. But as I recall, it does not
andersen> work properly with _syscall5, _syscall6, _syscall7, etc.
andersen> Perhaps there is some mistake in its assumptions about the
andersen> mips/linux ABI regarding which syscall arguments are passed
andersen> via register vs which syscall arguments are passed on the
andersen> stack.

Hmm... I found a old fix in uClibc ML archive.

http://www.uclibc.org/lists/uclibc/2002-September/004459.html

But it seems somewhat broken. How about this fix instead? I tested
mmap with syscall() in mips. mips64 is not tested.

We don't need this README

Peter S. Mazinger writes:

Hello!

Would the attached patch be acceptable (maybe instead of
__libc_gettimeofday using __gettimeofday)

We have some issues, see

http://bugs.gentoo.org/show_bug.cgi?id=65892

Atsushi Nemoto writes:

In a recent post to linux-mips ML (and libc-alpha ML), a problem with
inline syscalls was reported.

http://www.linux-mips.org/archives/linux-mips/2004-10/msg00142.html

It seems uClibc should be fixed also for newer gcc. Here is a patch.

Corrent HOWTO url

mention scratchbox and openembedded

Rip out Peter's unacceptable "fix" and do the sane thing instead; build
the utils using the uClibc-targeted toolchain.

unmap ld.so.cache when dlopen() returns.

hmm, somehow cvs lost this file in the previous commit.

Peter Mazinger writes:
The attached patch generalizes the use of PIE (all archs are brought in
sync that use/mention it: x86/ppc/frv) and makes use of it building the
target utils.

Tested on x86, ppc should be tested, frv uses -fPIE at one location, but
at another place -fpie, I don't know which is correct (could be both) and
misses the target addition in Config.in.

The test for ppc (requires the earlier sent crt-correction patch to work
correctly):
enable UCLIBC_PIE_SUPPORT, build uClibc and utils, check:
file ./utils/ldd, it should show shared object (instead of executable)

Peter Mazinger writes:
The attached patch is an updated version of an earlier sent patch
It solves the problem that the target utils (ldconfig/ldd/iconv, readelf
is not handled, but can be easily added) are not built w/ the newly
created [S]crt[01].o files.

Don't SEGV if library not found.

Remove unused stuff. From Peter Mazinger.

Mark Rakes writes:
without LDSO_CACHE_SUPPORT turned on, LDSO_CONF and LDSO_CACHE are
not defined anywhere, but still used by ldconfig.c This patch allows
ldconfig to build again, although there may be a cleaner way to fix
this????

Applied with minor modification.

Undo previous change. Leave SUID programs alone until I know what to do
with them.

Don't use ld.so.cache for SUID programs.

link to uClibc++, minor FAQ updates

As noticed by egor duda, current_menu is declared as 'extern struct menu
*current_menu;' in scripts/config/lkc.h line 63, and this conflicts with
static definition in mconf.c.

Remove _dl_parse_copy_information() for CRIS per Peter Kjellerstedts request.

Put back ucontext.h, but omit function prototypes for getcontext(),
makecontext(), setcontext(), and swapcontext() which are marked as
obsolescent by SuSv3, and are not implemented by uClibc.

Remove usage of _dl_parse_copy_information() from generic code.
Remove definition of _dl_parse_copy_information() for powerpc.
Remaining archs can do the same.
Make debugging output of "relocation processing: xxx" a bit more sane.

Add ualarm.c

Hide a bunch of unimplemented time function prototypes, and
mark them as mjn3's problem. :-)

Remove ucontext.h. We do not implement any of these functions.

Remove unimplemented non-SuSv3 function prototypes

implement SuSv3 required ualarm()

uClibc does not support getutent_r, getutid_r, and getutline_r,
and SuSv3 does not require r specify them. So kill the prototypes.

Remove empty file