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placing the NPTL code under the top-level 'libpthread' directory.
Nothing compiles or even works at this point, so do not enable this
option.
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$(LIBPTHREAD)
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source tree.
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a bit faster.
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Now GDB is happy and death events are reported as
[Thread 5126 (LWP 192) exited]
without GDB bailing out.
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[Thread 1026 (Missing) exited]
messages again, while leaving the __linuxthreads_death_event()
call disabled, as it still breaks gdb.
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Long time no see :)
It appears uClibc pthreads native debugging is broken w.r.t thread exit handling in
uClibc(at least on PPC). When debugging ex7, gdb(6.2.1) bails out as
soon as a thread exits. I found a comment in gdb that TD_DEATH handling was broken for
glibc 2.3.1, so I figured that maybe it was broken in uClibc also.
I added a #if 0 #endif in pthread_exit( see patch below) and then
gdb behaved again.
While looking into this I found a few differences( included in the patch)
between glibc and uClibc. Don't know if these makes a difference, but I leave that to
you to decide.
Jocke
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toplevel linuxthreads generic object files
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running $(AR), and the toplevel $(AR) isnt invoked until subdirs have finished
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updated
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files get updated
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options
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Seperate out security features into a separate menu
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-fstack-protector and -fno-stack-protector-all security
options
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as the flags for all calls to 'as'
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libthreaddb must not be stripped or gdb can't use it.
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debugging not become confused,
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adding cruft to include/sys/time.h. But also, there's no sense in
making changes like this until we decide how we're going to approach
the hidden symbol transition.
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Hello!
Would the attached patch be acceptable (maybe instead of
__libc_gettimeofday using __gettimeofday)
We have some issues, see
http://bugs.gentoo.org/show_bug.cgi?id=65892
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the utils using the uClibc-targeted toolchain.
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The attached patch is an updated version of an earlier sent patch
It solves the problem that the target utils (ldconfig/ldd/iconv, readelf
is not handled, but can be easily added) are not built w/ the newly
created [S]crt[01].o files.
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Corrects libpthread_db name (I do not know why libpthread_db.so uses
libpthread_db.so.1 instead of libpthread_db.so.$(MAJOR_VERSION) as soname)
Note by Jocke:
I don't known either but until then this is the right thing to do.
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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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_dl_pagesize variable in ldso, so avoid aliasing.
-Erik
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-Erik
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Hi Erik,
I'm not sure why the NIOS support is not in uClibc -- perhaps the patch
was rejected or never submitted? In any case, I'm playing with some NIOS
stuff and created this patch against 0.9.26. The work was done by
Microtronix. I'm not sure who else contributed to it. It would be great
to have the NIOS support available in uClibc so developers don't have to
go searching for these bits.
Pete
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instead, but we are not such a system and should not propagate such things.
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A program that requests __pthread_sig_debug to be blocked will
self-deadlock when it requests a thread to be created, because the
debugger (rda or gdb) will never get the signal, so it won't wake up
the pthread manager as expected.
This patch fixes it.
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The vfork() wrapper defined in libpthread, that's used to run
pthread_atfork()-registered handlers, is not only a very bad idea,
it's broken and useless. Here's the rationale:
[---------snip----------]
Since the implementation as it stands is broken (linking a program
that vfork()s and exec()s on the child and wait()s on the parent works
unless you happen to link with libpthread), and I can't think of
any workable solution, I suggest that we simply remove the vfork()
overrider in the non-MMU case. Yes, we might lose some small amount
of functionality here, but it's not like people running uClinux expect
anything resembling actual fork() to work.
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This patch adds code to uClibc to support a new ABI designed for the
FR-V architecture, that enables text segments of executables and
shared libraries to be shared by multiple processes on an OS such as
uClinux, that can run on FR-V processors without an MMU.
Patches for binutils and GCC have just been posted in the
corresponding mailing lists. The binutils patch was approved,
but there's one additional patch pending review, that I posted
this week. An updated GCC patch will be posted to
gcc-patches@gcc.gnu.org as soon as I complete testing (I used a
known-good compiler to test the uClibc patch below).
Since the existing dynamic loader code didn't support independent
relocation of segments, it required changes that were somewhat
extensive. I've added a number of new machine-specific macros to try
to keep the platform and ABI-specific details outside the generic
code. I hope this is not a problem.
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Codepaths streamlined. Improved performance for nonthreaded apps
when linked with a thread-enabled libc.
Minor iconv bug and some locale/thread related startup issues fixed.
These showed up in getting a gcj-compiled java helloworld app running.
Removed some old extension functions... _stdio_fdout and _stdio_fsfopen.
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avoid problems 'hidden symbol' problems. Also handle -lfloat for the
soft-float arm case.
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were including libc-lock.h which had a bunch of weak pragmas. Also,
uClibc supplied a number of no-op weak thread functions even though
many weren't needed. This combined result was that sometimes the
functional versions of thread functions in pthread would not override
the weaks in libc.
While fixing this, I also prepended double-underscore to all necessary
weak thread funcs in uClibc, and removed all unused weaks.
I did a test build, but haven't tested this since these changes are
a backport from my working tree. I did test the changes there and
no longer need to explicitly add -lpthread in the perl build for
perl to pass its thread self tests.
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This patch adds the libpthread backend bits for sh64. As noted previously,
we can't inline things like the testandset() in pt-machine.h as we need to
use a completely different ISA / CFLAGS in order for this to work.
As a result, this patch is somewhat of a RFC as well to see what people think
of the libpthread/linuxthreads/sysdeps Makefile approach, etc. The approach
I've taken currently has been to provide a sysdeps/Makefile with a note that
TARGET_ARCHs that want build rules can simply add themselves into the list of
matching architectures to add to the subdir rule for. This probably isn't
the cleanest solution, but it's quite transparent and works quite well.
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I've noticed a few people have posted over the last year about problems
compiling programs that use vfork when pthreads are involved. Some
detective work turned up that ptfork.c aliases vfork to fork and then tries
to call the original fork as __libc_fork. This patch removes the aliasing
when there is no MMU present, and uses the same call semantics to call
__libc_vfork. I then added a symbol to the m68k vfork.S to allow vfork to
be called as __libc_vfork.
The same bug exists in the uClibc CVS, and with a possible tweak this patch
should go through there as well.
Obviously, all other platforms need __libc_vfork as a workable means to call
vfork in order for this to work for them.
Let me know if there are any problems with this patch.
Art Shipkowski
Videon Central Software Engineer
(814)235-1111 x307
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