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<hcegtvedt@atmel.com>
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Jean-Christian de Rivaz writes:
The attached patch solve an issue I faced while using the libdbus-glib
waiting for a D-Bus message or the end of a glib timer at the same time.
This specific case of use generate a poll call with a zero timeout. On
platformes with the glibc a zero timeout poll return immetiately even if
there is no file descriptor event. But on platformes with uClibc a zero
timeout poll block until a file descriptor event occurs.
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This wants a stub_enosys(readahead) line later on, like many, many others need..
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I got the library to compile with the attached patches, though dynamic
loader crashes early.
In buildroot I changed the architecture name by hand from sparc to
sparc64, otherwise the compiler produced 32-bit files with V9 (64-bit)
instructions. This configuration is not supported by QEMU, so I aimed
for pure 64-bit. I think Sparc64 option needs to be added to
buildroot.
The _Qp_ ops seem to be required by the ABI. This and setjmp patches
are just hacks to get the compilation further. The _Qp_ ops can be
found in glibc, would it be OK to use those?
V9 assembler requires declarations for global register use.
The mem* functions in sparc32 directory did not work. They are
actually used only by the hybrid 32-bit + V9 CPU configuration.
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In MIPS syscall(2), .cpload was added to an the error path, but it was
not enough for ABIs other then O32. Use SETUP_GP, SETUP_GP64 and
RESTORE_GP64 to handle all ABIs. This patch fixes an error path of
MIPS pipe(2) too.
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from i386 and x86_64.
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Make msync.c agree on this.
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them enabled, so let's go all the way. There was a quick discussion on IRC about making the max baud rate configurable. That requires a bunch of #ifdef salting throughout all of the 'termios.h' files for the pre-processor to chew on. I'm going to pass on that for now.
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else.
- internal_function is only used inside libc, so do not define it in
uClibc_arch_features.h on i386 if we are outside of libc.
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Hi All,
this patch fixes a mismatch in ucontext struct between uClibc and kernel.
In this way a signal handler installed by sigaction can access
to the whole machine state correctly.
This can be applied both to trunk and nptl branch
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Current MIPS readahead(), posix_fadvise(), posix_fadvise64() do not
match with kernel on all ABIs.
On O32 ABI, a padding is needed before a long long argument.
On N32/N64, a long long argument should be passed via a single register.
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http://www.opengroup.org/onlinepubs/009695399/functions/posix_fadvise.html
states it returns error code instead of setting errno.
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I actually suspect this code into the file uClibc/libc/sysdeps/linux/common/poll.c:
tval.tv_nsec = (timeout % 1000) *1000; <==== make only usec!
From milisecond this really needs a * 1000000 to make nanosecond. Without this
a 1100 milisecond timeout is converted into a 1 seconde and 100 microsecond
timeout! This can explain the weird result of the test code.
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Daniel Jacobowitz on the mailing list. More information available at <http://www.uclibc.org/lists/uclibc/2007-May/017968.html> .
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Linux kernel versions as reported by Joseph S. Myers on the mailing list. More information available at <http://www.uclibc.org/lists/uclibc/2007-May/017971.html> .
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running LTP test suite on uClibc-nptl for sh4 I found a bug into pread
and pwrite functions. When the offset is negative it is not correctly
handled due to a missing shift operation, so it is passed to the
syscall as the highest unsigned positive value.
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pointed out the solution. This fixes a segfault for me on exit from a
statically linked "hello world".)
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On PowerPC, r13 is used for a small data pointer and needs to be set up
from _SDA_BASE_ (defined by the linker) at startup.
This is needed for the GCC testcase gcc.target/powerpc/980827-1.c to work.
This patch fixes that testcase (verified for both static and dynamic
linking).
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emulate poll with ppoll.
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with gcc 4.2. Renaming to make it a bit uncommon name.
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The attached patch works around some compilation failures on
ia64 caused by the use of the C preprocessor ## operator, and
allows the ia64 default configuration to build again -- or, at
least get as far as an x86 build does (the current source tree
has some problems compiling because of conflicting type
declarations for __kernel_dev_t).
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says "virtual memory exhausted" trying to build hello world.)
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again, this makes the non-threaded case compile again. I have no idea
if this is the proper fix, I'm just tired if it not compiling for two
weeks.
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Patch from Carmelo Amoroso <carmelo73@gmail.com>.
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Carmelo Amoroso <carmelo73@gmail.com>.
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Import INTERNAL_SYSCALL macro for i386 from glibc.
Use above macro in posix_fadvise implementation if an arch defines it.
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