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This was one of the stragglers still bent on __uClibc_start_main
utilization, now it's only FR-V.
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misaligned scratch buffers
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execls fail by simply not releasing the memory reserved for the arguments of children processes
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gcc version checking in every pt-machine.h header ... while __extern_always_inline should work fine, i think what is intended is __extern_inline ... should double check later
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- add missing header guards while at it
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generalizes what Blackfin was already doing)
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The following patches add support for the Xtensa processor architecture
to uClibc. They are based on a recent SVN checkout (12/05/2007).
The first patch (attached to this post) adds Xtensa support to various
shared configuration and make files. The following patches then include
the Xtensa specific files and directories.
I welcome any feedback and would appreciate it if you could include the
patches into the mainline tree. I am certainly committed to maintain the port.
Bob Wilson was kind enough to review the patches.
Some notes about the architecture: Xtensa is a configurable and
extensible processor architecture developed by Tensilica. For more
information, please visit: www.linux-xtensa.org.
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string functions
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Cirrus Logic EP93XX ARM9 Procs.
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sys_errlist[] to strerror()
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I noticed, that in libc/misc/syslog/syslog.c when the syslog socket is opened, the close-on-exec flag is not set, as it is in gnu libc.
This enables that behavior.
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I had occasion to look at the uClibc script "getent" and felt compelled to clean out the cargo-cult programming style. I believe that this version is clearer, and I've added some minor features while I was in there:
* usage clause, if no arguments or "--help" requested
* original version appears to have been intending to "exit 2" on failure to match, but didn't
* basic, probably good enough, support for ethers and netgroups
* faster ;-) [as if that matters for this script]
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transparent
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When no TIOCGPTN definition is present in the kernel headers, the library's ptsname() function will not work.
The libc/stdlib/ptsname_r.c file is the problem. This file includes a complicated nest of #if directives. One of these #if's has the opposite sense from what is required.
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as documented in the function api
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On an i386 platform with no rt_sigsuspend syscall (ie: Linux 2.0), compilation will halt on libc/sysdeps/linux/common/sigsuspend.os with a cryptic error message:
"Error: non-constant expression in ".if" statement"
I've investigated and found that the cause is that a literal '0' is being passed into a block of complex assembler macrology that is only prepared to deal with register names - '%eax', etc.
In turn, that seems to be because of a typo in the GCC register constraints. The constraints for 2 and 3-argument syscalls includes a "C" constraint. To gcc, "C" means an SSE floating point constant -- an unlikely element in a syscall. I suspect the author meant to type "S" (%esi).
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getcwd syscall has an off-by-one allocation bug. As a result, sometimes the returned string has garbage at the end.
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on their own local copies while static linking dont hit link failures when other uClibc code force the libc.a objects to be pulled in via the hidden alias symbols
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infinite loops when it generates builtins+trunc() substitutes
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after having added memset.
Thanks to Peter Mazinger for pointing this out.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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sa_restorer when SA_ONSTACK is set, but it seems to break LTP's
sigaltstack testcase. Some users have reported problems with
sigaltstack as well; hopefully this will fix it.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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initialization of the mutex field within DIR struct.
When linked dynamically instead, __pthread_mutex_init will
initialize the mutex itself. Without this fix, any call to
readdir will stuck forever trying to acquire the mutex.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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These are mostly the changes necessary to deal with loading the libraries
into memory. A couple new target macros are defined for this purpose, and
the code in dl-elf.c is modified to deal with nommu systems.
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A couple more target macros for ld.so to deal with FD-PIC support. We need
special code to compute the initial got and dpnt, and we need to pass extra
arguments to _dl_get_ready_to_run.
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Add a hash table for function descriptors on FD-PIC targets.
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Change _dl_find_hash to _dl_lookup_hash, as on the NPTL branch.
_dl_find_hash is now a wrapper function around it; unlike on the NPTL branch,
it retains the old interface so that not all callers need to be changed.
_dl_lookup_hash can optionally give its caller a pointer to the module where
the symbol was found.
Introduce ELF_RTYPE_CLASS_DLSYM for lookups from libdl.
Spelling fixes in the Blackfin port, since Alex Oliva's original version of
these patches used _dl_find_hash_mod as the name of the function rather than
_dl_lookup_hash.
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Add the necessary changes in ld.so and libdl to deal with targets that
prepend an underscore to symbol names.
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Add a new function _dl_free. In _dl_malloc, ensure we always get back a full
page from mmap.
Reset _dl_malloc_function and _dl_free_function when libdl is initialized.
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system calls actually being inlined, so AVR32 needs to use
__always_inline instead of just inline. The attached patch changes this
for the system calls.
Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
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reduction is achieved by direct use of user-supplied PATH_MAX sized
buffer for result (without intermediate copy) and changes
in copy_buf[] usage - now it is used for both "source" pathname
and link name (it works because they have to be less than PATH_MAX combined,
otherwise we return NULL).
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