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Hello Erik!
I have made some cosmetical changes to the files, removed the added
SCRT=-fPIC option from building the crt0.S file (but it is a requirement
to build them with -fPIC), and changed some comments. I have left the
ldso.c patch with PIE_SUPPORT ifdefs, but consider applying it w/o them
(see some earlier comment from PaX Team on this issue, as it is considered
a bug). To have it work correctly, you'll also need removing
COMPLETELY_PIC.
One thing is missing: PIE_SUPPORT should be usable only for i386 (for
now).
Also added the support for propolice protection (that works for me and
catches memcpy/strcpy attacks (but needs a special gcc version).
Thanks, Peter
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The macro to do some floating point checks in libc/sysdeps/linux/powerpc/setjmp.S is incorrect.
The following should fix it.
Same applies to uClibc/libc/sysdeps/linux/powerpc/__longjmp.S
Hope there aren't other files I've missed :)
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The macro to do some floating point checks in libc/sysdeps/linux/powerpc/setjmp.S is incorrect.
The following should fix it.
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seeing any LTP failures.
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-Erik
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The rt_sigprocmask syscall has broken error handling in 2.4.x
kernels, while the sigprocmask syscall appears to get things
right. Regardless we should be extra careful, and add these
checks.
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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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we did not have a __getpgid(). Fix that.
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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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being cleaned up.
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Untested, but syscall() is needed by busybox for pivot_root at least.
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used to generate the crti.S and crtn.S files. Since we don't use that
anymore, keeping the workaround makes no sense.
Furthermore, in most cases, SAFECFLAGS was not picking up all the
needed flags, causing crti.o and crtn.o to not be built PIC.
Which is very bad. Removing SAFECFLAGS and using CFLAGS fixes
that as well.
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Hello Erik,
to compile the new uClibc release for a SH3 we need some little
modifications:
First I fix the crt[in].S files, so we can use them for big endian and
little endian targets.
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broke a couple of days ago. :-(
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showed up while running the latest LTP testsuite.
-Erik
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Dear Erik,
We downloded uClibc lattest version from the CVS. Still there are some
minor problems with extra/Configs/Config.e1
You have actually set ARCH_HAS_C_SYMBOL_PREFIX to NO which is not
correct for our architecture. Please apply the patch that will fix the
problem.
Best Regards,
- George
P.S. Patch also removes some irritating comments we have added in the past.
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need to be fixed properly. I tried, but I was unable to build a cross
toolchain for each of these (using stock binutils and gcc) so it is someone
else's problem to fix them now.
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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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function not implemented".
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