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The Arm crt0.S contains non-PIC code for locating _init and _fini sections.
This caused problems on my uclinux system when static constructors were
enabled.
The attached patch implements a PIC version of this code.
Paul
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Here's an updated version of the patch I posted about a month ago. It
leaves -nostdinc alone, and uses -print-file-name=include instead of
-print-search-dirs to figure out where GCC's internal headers are.
Please let me know whether there are any portions of this patch you'd
like me to break into smaller pieces, to rework, or to give up trying
to get into uClibc :-) Thanks,
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stack frame. This will make backtracing possible.
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enabled. syslog() support should now work both inside and outside of chroots. erandom code left in but remains #ifdef out by default. May remove erandom completely in the future for uClibc unless the LFS guys and gals want to keep it.
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enabled. syslog() support should now work both inside and outside of chroots. erandom code left in but remains #ifdef out by default. May remove erandom completely in the future for uClibc unless the LFS guys and gals want to keep it.
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was incorrect in uClibc, and was 2 bytes too short. This caused uClibc
shared memory stuff to not behave correctly since struct ipc_perm was
included as the first member of, i.e. struct msqid_ds, so the content
of that struct were all shifted by two bytes. ugh. Apparently, few
people have used shared memory, msgctl(), etc with uClibc thus far,
-Erik
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adding cruft to include/sys/time.h. But also, there's no sense in
making changes like this until we decide how we're going to approach
the hidden symbol transition.
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for saving SRP separately.
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binaries where the standard file descriptors are not opened.
-Erik
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>>>>> 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.
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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
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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.
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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)
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Hi. I found a mismatch between uClibc and kernel in semctl definition.
In uClibc/libc/misc/sysvipc/sem.c:
static inline _syscall4(int, __semctl, int, semid, int, semnum, int, cmd, union semun *, arg);
...
int semctl(int semid, int semnum, int cmd, ...)
...
arg = va_arg (ap, union semun);
...
return __semctl(semid, semnum, cmd, &arg);
But kernel's semctl is:
asmlinkage long sys_semctl (int semid, int semnum, int cmd, union semun arg)
The last argument is an union semun itself, not a pointer to the
union.
Here is a patch.
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match glibc's quotient truncation behavior.
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Port the generic optimized string funcs from glibc, with some tweaks
to cut their size a little. The main change is making memmove
call memcpy for forward copying to trim redundant code.
Make use of both the generic and arch-specific speed-optimized string
funcs configurable. Arch-specific take precedence over generic,
and generic takes precedence over basic size-optimized uClibc funcs.
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Requested by Peter Mazinger. Testing wanted.
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- adjust licensing terms of sources for crt*.o
- change the stat ABI to speed it up, matching changes in the kernel
- assorted bug-fixes, improvements and updates in the FR-V port
etc.
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this was sent earlier in a different form:
http://www.uclibc.org/lists/uclibc/2004-January/008136.html
find attached a smaller version ... perhaps adding a fprintf to stderr before
calling abort would be nice like in the glibc patch, but whatever
glibc has since adopted a similar fix for their malloc (third hunk, line 1970)
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/malloc/malloc.c.diff?r1=1.121&r2=1.122&cvsroot=glibc&f=h
-mike
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i sent this earlier but perhaps people missed it the first time around :)
http://www.uclibc.org/lists/uclibc/2004-August/009544.html
basically if you try to #include <sys/ucontext.h> on arm it'll fail because
ucontext.h utilizes typedefs found in bits/sigcontext.h ... i386 already has
this fix in uClibc
find attached a trivial patch to fix this
-mike
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Below is a patch to make the pread and pwrite calls work on the SH
architecture. I've only tested this on the SH4 with a 2.4.24 kernel - a
fairly recent kernel is required as the problem is partially fixed in
the kernel itself. For more information (in relation to glibc, but the
problem is the same) see the thread at
http://sourceforge.net/mailarchive/message.php?msg_id=2375908
Someone should really test this on the SH2/3...
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more sane than 'gcc -pg' and seems much easier to support.
-Erik
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size and performance penalty to profiling applications this way, as well as
Heisenberg effects, where the act of measuring changes what is measured.
There are better tools for doing profiling, such as OProfile, that do not
require gcc to instrument the application code.
-Erik
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-Erik
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I will always test before I commit.
I will always test before I commit.
-Erik
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dtors via atexit(), atexit may need to call realloc with __pagesize
still set to 0. ugh.
-Erik
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is not quite there...
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_dl_pagesize variable in ldso, so avoid aliasing.
-Erik
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checking on 127.0.0.1 is still valid w/o resolv.conf
-Erik
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return the length and the actual dns packet as received, rather than
making stuff up.
-Erik
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-Erik
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the comment, newer kernels appended "64" to __NR_pread and __NR_pwrite.
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instruction errors. Disable it for now.
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> the gethostbyname_r() call itself is not segfaulting, but the memory
> returned in the h_aliases array seems to be wrong ...
was playing around with the source today and eventually the obvious answer hit
me ... while read_etc_hosts_r() generatings an array of strings fo h_aliases
and populates it, the dns path does not :)
find attached a patch that'll actually generate the h_aliases list in the
normal dns code path ... i used the etc_hosts_r() code as a template for some
of it ...
note that this is just a simple fix ... it fills the alias list with just the
hostname gethostbyname_r was passed ... the proper fix i think would be to
parse the dns packet down in __dns_lookup() and pass the info back via the
resolv_answer struct ...
but this fix is better than the current state of things ... that is, h_aliases
currently is never initailized in the dns code path :)
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