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position of envp in C code based on argv and argp. No need to
caclulate that in asm for N arches. This way, we better match
what glibc does. All arches will need to be fixed to match up
with this change.
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__libc_csu_init and
_fini vs. __libc_csu_fini remains to do.
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Kill old crt0/__uClibc_main.
This breaks ABI. All apps and toolchain needs to be recompiled.
All archs except x86 are now broken and need to be fixed as x86.
PPC will be fixed shortly by me, the rest is left to the arch maintainers.
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the already existing clock_gettime(). In addition they will now use
the corresponding system calls if they exists, which resulted in a
move to libc/sysdeps/linux/common for clock_gettime.c (it was
previously located in libc/misc/time).
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syscalls. This won't work on 2.2 kernels(I think).
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uClibc's mkstemp/mktemp tries to read /dev/urandom (or /dev/random) to
generate random contents for the .XXXXXX part of its argument. In a
chrooted environment /dev/[u]random might not be available. Thus the
mkstemp call fails.
Add back in the braindamaged gettimeofday/getpid code, but only as a
fallback for when reading /dev/[u]random fail for whatever reasons.
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Add back in the code which sets the default facility if none specified. This
may cause issues with klogd when it tries to use the libc's syslog(), but
klogd comes with its own syslog() implementation so that's a none issue. For
more info, please see the following:
http://sources.redhat.com/ml/libc-alpha/2000-03/msg00059.html
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#define _DL_DO_FINI_IN_LIBC to enable(the arch specific part needs to be in place first).
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Hello,
under some circumstances the following small example prints lots of
garbage onto the console and into the syslog:
#include <syslog.h>
int main ()
{
openlog("foo", LOG_CONS|LOG_NDELAY|LOG_PID|LOG_PERROR, LOG_DAEMON);
syslog (LOG_WARNING, "mlock: %m");
return 1;
}
The reason is, that sprintf returns with -1 and vsyslog dumps the
complete buffer onto stderr and the syslogd socket. The following
patch would fix the problem:
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rename UCLIBC_PROPOLICE to UCLIBC_HAS_SSP
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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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binaries where the standard file descriptors are not opened.
-Erik
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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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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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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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-Erik
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not the hard coded value of 4096.
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running on uClinux, which at runtime uses the FLAT file format.
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the real thing.
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Hi Erik
It seems to me that __pthread_once and __pthread_initialize_minimal could be made
WEAKs with no stub. The code in rpc_thread.c and __uClibc_main.c appears to expect this.
Also, __pthread_return_0 __pthread_return_1 and __pthread_return_void can be static, not to
pollute the name space.
Jocke
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by extracting the value from the ELF header.
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Add timegm() function.
Make lookup_tzname() static (as it should have been).
Have strftime() get timezone information from the passed struct
for the %z and %Z conversions when using struct tm extensions.
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Also fix the sizeof() issue since the change to a dynamicly allocated buf.
Note! This is still broken wrt threading, but so is the glibc version.
I'm just commiting this for new until I can test my rewrite.
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This code in uClibc would attempt to set the default facility if
none was specified. Except none being specified is 0, which is
also LOG_KERN, therefore klogd could never get kernel messages
logged as LOG_KERN.
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instead. Based on an initial patch from Tobias Anderberg, but reworked. I
asked Tobias to look into doing something more like what is done in busybox,
but that proved to be a pain.
One possible concern is that these buffers will probably show up as
memory leaks i.e. with valgrind. Perhaps we should add in an atexit
call to free this memory right after we allocate it?
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were returning). Anyway, also make them threadsafe and smaller. The
error.c file still needs work.
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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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-Erik
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stdio or locales.
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implementation to build. Later this month I'll add a functional wcsftime.
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missing one in the glibc abi, and including a number of extras (which I
left in commented).
Unfortunately, this brings back the perl pthread bug. Fixing the incorrect
weaks in libpthread wasn't sufficient to escape the shared loader bug. :-(
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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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This avoids pulling in all the malloc/free code for a simple true/false app.
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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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Normalize the tm_isdst value to -1, 0, or 1.
If no dst for this timezone, then reset tm_isdst to 0.
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Also, build the iconv app in utils.
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