buildsys: use kbuild style

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

buildsys: remove superfluous default n

kconfig's default defaults to n so spelling out default n is redundant

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

libc: add {get,set,swap,make}context user context manipulation functions

Add the obsolescent SUSv3 family of user context manipulating functions
for arm, i386, mips, x86_64.

Signed-off-by: Timon ter Braak <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>
Signed-off-by: Natanael Copa <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

dl: fix dlsym lookups with RTLD_NEXT

The current code for dlsym() when invoked with RTLD_NEXT lookup
searches for the module where it's being called from, and executes the
_dl_find_hash only for the next module in the chain. However, if the
looked symbol is not there, the rest of the modules are not checked.

Generally this is not a problem as symbols are merged for the parent
modules; so this affects only RTLD_NEXT.

This patch adds a loop iterating through all the following modules.

Signed-off-by: Timo Teräs <[email protected]>
Reviewed-by: Filippo ARCIDIACONO <[email protected]>
Tested-by: Florian Fainelli <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

buildsys: prevent make from searching for .config

Fixes:
make distclean
mkdir /.config
make -C test/API clean
Reading makefile `../../.config' (search path) (don't care) (no ~ expansion)...
make: *** ../../.config: Is a directory.  Stop.

write(1, "Reading makefile `../../.config'"..., 80) = 80
open("../../.config", O_RDONLY)         = -1 ENOENT (No such file or directory)
open("/usr/include/../../.config", O_RDONLY) = 6
fstat(6, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
read(6, 0x7f2fe3bfc000, 4096)           = -1 EISDIR (Is a directory)

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

arm: workaround GCC PR target/53735 with fork()

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

libc: handle sync_file_range

Add cancellation and support arm, ppc64, mips32.
Compile-tested.

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

arm: clone: restore stack pointer just after return from syscall

If the syscall returns with an error the stack pointer and r4 register
are not restored because the instruction 'ldmnefd sp!, {r4}' is executed
after branching to '__error' label.
This bug has been spotted out by running './utstest clone 5' from LTP
built with -fstack-protector-all compiler flag as log below:

root@cortex-a9:/usr/tests/ltp/testcases/bin# ./utstest clone 5
stack smashing detected: ./utstest terminated()

Regression introduced by commit e58798e107d652644629a1daaa95d76430808d53

Signed-off-by: Filippo Arcidiacono <[email protected]>
Signed-off-by: Giuseppe Di Giore <[email protected]>
Signed-off-by: Carmelo Amoroso <[email protected]>

xtensa: fix setjmp that didn't save all registers correctly

Setjmp was only saving the lower order of registers (a0-a3) correctly, but
not the higher ones (a4-a8/a12).
The change also includes additional information, and renames many of the
registers, so that setjmp and longjmp look more like the inverse of
each other.

Signed-off-by: Chris Zankel <[email protected]>

sched.h: include stdlib.h for malloc/free

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

update ptrace.h to latest from glibc

Update libc/sysdeps/linux/common/sys/ptrace.h to latest from glibc's
sysdeps/unix/sysv/linux/sys/ptrace.h.

This adds definitions for operations:
 - PTRACE_GETREGSET
 - PTRACE_SETREGSET
 - PTRACE_SEIZE
 - PTRACE_INTERRUPT
 - PTRACE_LISTEN

And adds flags:
 - PTRACE_SEIZE_DEVEL

And adds event codes:
 - PTRACE_EVENT_SECCOMP

This is to allow access to the generic interface for accessing
architecture specific regsets using the corresponding NT_* types,
required for new Linux kernel architecture ports.

Signed-off-by: James Hogan <[email protected]>
Signed-off-by: Mike Frysinger <[email protected]>

libc/stdlib: localize __unix_grantpt

When ASSUME_DEVPTS is disabled, we end up exporting __unix_grantpt and
get a reloc to it from grantpt.  Mark it static to fix all of that.

Reported-by: Michael Deutschmann <[email protected]>
Signed-off-by: Mike Frysinger <[email protected]>

drop support for pre ISO-C compilers

This drops __signed, __volatile, and __const.  Only the latter was
used in the code base, and for uClibc, not consistently.  Much of
the code used plain "const" which meant "__const" was useless.

Really, the point of this is to stay in sync with what glibc did.

Signed-off-by: Mike Frysinger <[email protected]>

Replace FSF snail mail address with URLs

This matches a similar change made to glibc.

No functional changes here.

Signed-off-by: Mike Frysinger <[email protected]>

AVR32: declare missing result variable

Signed-off-by: Felix Fietkau <[email protected]>
Signed-off-by: Mike Frysinger <[email protected]>

nptl: fix gcc noreturn warning

Current builds show the warning:
  CC libpthread/nptl/pthread_create.os
libpthread/nptl/pthread_create.c: In function 'start_thread':
libpthread/nptl/pthread_create.c:418:3: warning: function declared
'noreturn' has a 'return' statement [enabled by default]
libpthread/nptl/pthread_create.c:418:3: warning: 'noreturn' function
does return [enabled by default]

Looking at glibc, it does not mark this function as noreturn.  Testing
code size, gcc is smart enough to detect the code never actually returns
regardless of the attribute.  So drop it to keep in sync with glibc and
to avoid the warnings.

Signed-off-by: Mike Frysinger <[email protected]>

nptl: fix gcc noreturn warning

Current builds show the warning:
  CC libpthread/nptl/sysdeps/unix/sysv/linux/mq_notify.os
libpthread/nptl/sysdeps/unix/sysv/linux/mq_notify.c: In function 'helper_thread':
libpthread/nptl/sysdeps/unix/sysv/linux/mq_notify.c:142:3: warning:
function declared 'noreturn' has a 'return' statement [enabled by default]

Looking at glibc, it does not mark this function as noreturn.  Testing
code size, gcc is smart enough to detect the while(1){} never actually
returns regardless of the attribute.  So drop it to keep in sync with
glibc and to avoid the warning.

Signed-off-by: Mike Frysinger <[email protected]>

ldso: include dlfcn.h for RTLD_NODELETE

Building with NPTL enabled and shared library support disabled we hit:
In file included from libpthread/nptl/sysdeps/generic/dl-tls.c:30:0:
./ldso/include/dl-elf.h: In function '__dl_parse_dynamic_info':
./ldso/include/dl-elf.h:173:20: error: 'RTLD_NODELETE' undeclared (first use in this function)
./ldso/include/dl-elf.h:173:20: note: each undeclared identifier is reported only once for each function it appears in
make: *** [libpthread/nptl/sysdeps/generic/dl-tls.os] Error 1

A previous commit (f26c5f6952ce9bf8edec9c1571c47addb1bcc442) touched
on a similar issue, but added the include to the incorrect location.

Reported-by: Christophe Lyon <[email protected]> [arm nommu]
Reported-by: Daniel Beecham <[email protected]> [static x86_64]
Signed-off-by: Mike Frysinger <[email protected]>

string/microblaze: fix preprocessor style

Signed-off-by: Mike Frysinger <[email protected]>

libc/sysdeps: dup3: check for __NR_dup3 since older kernels/arches lack it

Signed-off-by: Mike Frysinger <[email protected]>

include/elf.h: update for ELFOSABI_* changes.

ELFOSABI_GNU replaces ELFOSABI_LINUX, the latter is kept as a compatibility
alias, and ELFOSABI_HURD is removed.  See the table on
<http://www.sco.com/developers/gabi/latest/ch4.eheader.html#osabi> for
reference.

Signed-off-by: Thomas Schwinge <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

libc/stdlib: add mkostemp helpers

Some projects (like udev) are starting to use this.

Imported from glibc.

Signed-off-by: Mike Frysinger <[email protected]>

libc/sysdeps: add dup3 syscall wrapper

Some projects (like udev) are starting to use this.

Signed-off-by: Mike Frysinger <[email protected]>

include/: ignore more symlinks

Signed-off-by: Mike Frysinger <[email protected]>

test/math: add libm-test-ulps-xtensa file

Add ulps file for Xtensa for the math test.

Signed-off-by: Chris Zankel <[email protected]>

string/microblaze: Fix for little-endian

Fix the asm-optimised memcpy and memmove so they
work for little-endian as well as big-endian.

Testing has shown no issues, but I am not a microblaze
asm expert so YMMV.

Signed-off-by: Steve Bennett <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

microblaze/bits/setjmp.h: Fix stray #endif

Introduced in c53099f7

Signed-off-by: Steve Bennett <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

xtensa: add missing atomic intrinsics

Add more atomic intrinsics. These are mostly non 32-bit versions, which
are not support by Xtensa. This file needs some more clean-up and
consolidation.

Signed-off-by: Chris Zankel <[email protected]>

xtensa: sysdep.h needs to include sys/syscall.h

The Xtensa version of sysdep.h didn't include sys/syscall.h. This header
file is, for example, needed by not-cancel.h, which uses the
INTERNAL_SYSCALL macro.

Signed-off-by: Chris Zankel <[email protected]>

xtensa: add a stub user.h file

Xtensa only supports the ELF binary format, so the user.h file isn't
needed. However, it's included by other files, so provide a stub user.h.

Signed-off-by: Chris Zankel <[email protected]>

ldd: ELFCLASSM was not defined for the Xtensa architecture

Signed-off-by: Chris Zankel <[email protected]>

xtensa: fix a misnumbered register in sigsetjmp

Signed-off-by: Chris Zankel <[email protected]>

xtensa: add a set of atomic intrinsics

Add a new file that provides various atomic intrinsics, which use the
conditional store instruction.

Signed-off-by: Chris Zankel <[email protected]>

xtensa: use atomic instructions instead of a syscall

Replace system calls with atomic instructions for 'compare and swap'
in linuxthreads.old.

Signed-off-by: Chris Zankel <[email protected]>

xtensa: add sigcontext.h

Signed-off-by: Chris Zankel <[email protected]>

_scanf.c: Implement 'm' modifier for 'c' and '[' conversions.

The current code implements the 'm' modifier only for 's'
conversions and would cause a segfault if it was used for 'c'
or '[' conversions. This patch extends the code to cover these
cases too.

Signed-off-by: Will Newton <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

utils: Fix missing semicolon

Thanks to Manuel Rüger for spotting this one.

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

__uclibc_main: remove stray trailing space

test post-receive hook

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

test: Fix some warnings in inet

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

test: handle !DO_C99_MATH

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

libc/sysdeps: add __kernel_long and __kernel_ulong

Linux 3.4 added __kernel_long_t and __kernel_ulong_t and various
exported header files were updated to use these new types. Add the
definitions for __kernel_long_t and __kernel_ulong_t to the relevant
kernel_types.h headers.

This change was automated with the following scriptlet

  git grep --name-only 'typedef.*__kernel_old_dev_t' \
    | xargs sed -i '/typedef.*__kernel_old_dev_t/ a\
  typedef long\t\t__kernel_long_t;\
  typedef unsigned long\t__kernel_ulong_t;'

Whitespace in arm, avr32, hppa, sparc was then manually fixed up.

Signed-off-by: Chris Packham <[email protected]>
--
Here's a cleaned up patch which should get the whitespace right. I'm a
bit iffy about the sparc changes they make sense to me but it's not a
platform I have access to.

I can break this up per arch or per maintainer if requested.

 libc/sysdeps/linux/alpha/bits/kernel_types.h      |    2 ++
 libc/sysdeps/linux/arm/bits/kernel_types.h        |    2 ++
 libc/sysdeps/linux/avr32/bits/kernel_types.h      |    2 ++
 libc/sysdeps/linux/bfin/bits/kernel_types.h       |    2 ++
 libc/sysdeps/linux/c6x/bits/kernel_types.h        |    2 ++
 libc/sysdeps/linux/cris/bits/kernel_types.h       |    2 ++
 libc/sysdeps/linux/e1/bits/kernel_types.h         |    2 ++
 libc/sysdeps/linux/h8300/bits/kernel_types.h      |    2 ++
 libc/sysdeps/linux/hppa/bits/kernel_types.h       |    2 ++
 libc/sysdeps/linux/i386/bits/kernel_types.h       |    2 ++
 libc/sysdeps/linux/ia64/bits/kernel_types.h       |    2 ++
 libc/sysdeps/linux/m68k/bits/kernel_types.h       |    2 ++
 libc/sysdeps/linux/microblaze/bits/kernel_types.h |    2 ++
 libc/sysdeps/linux/mips/bits/kernel_types.h       |    4 ++++
 libc/sysdeps/linux/nios2/bits/kernel_types.h      |    2 ++
 libc/sysdeps/linux/powerpc/bits/kernel_types.h    |    4 ++++
 libc/sysdeps/linux/sh/bits/kernel_types.h         |    2 ++
 libc/sysdeps/linux/sh64/bits/kernel_types.h       |    2 ++
 libc/sysdeps/linux/sparc/bits/kernel_types.h      |    4 ++++
 libc/sysdeps/linux/v850/bits/kernel_types.h       |    2 ++
 libc/sysdeps/linux/x86_64/bits/kernel_types.h     |    2 ++
 libc/sysdeps/linux/xtensa/bits/kernel_types.h     |    2 ++
 22 files changed, 50 insertions(+)
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

librt: re-add SIGCANCEL to the list of blocked signal in helper thread

Indeed if the libpthread is before the libc in the library look up
the SIGCANCEL is removed from the list of the blocked signal by
sigfillset func, this can produce the handler not properly called.
This commit revert what Denys modified in commit
162cfaea20d807f0ae329efe39292a9b22593b41.

Signed-off-by: Filippo Arcidiacono <[email protected]>
Signed-off-by: Carmelo Amoroso <[email protected]>

i386/bits/syscalls.h: allow immediate values as 6th syscall arg

Allow use of immedate values as the 6th syscall argument. Otherwise we must
store the arg on memory. This gives gcc more options to optimize better.

This also works around an issue with posix_fallocate.

Signed-off-by: Natanael Copa <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

bits/time.h: sync with glibc 2.16

CLOCK_MONOTONIC_RAW is available since 2.6.28
(2d42244ae71d: clocksource: introduce CLOCK_MONOTONIC_RAW), and
CLOCK_*_COARSE since 2.6.32 (da15cfdae033: time: Introduce
CLOCK_REALTIME_COARSE).

Signed-off-by: Peter Korsgaard <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

libc/inet/resolv.c: Use IE model for TLS data.

All other TLS data in uClibc is explicitly using the IE model,
so use it for __resp too. This generates smaller and faster
code.

Signed-off-by: Will Newton <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

libc/inet/resolv.c: Remove obsolete comment.

The definition of __resp has been hidden for some years (commit
22de495d). Remove the comment suggesting that it is not.

Signed-off-by: Will Newton <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

Accept either __NR__lseek or __NR_lseek

In llseek.c, we already allow both variants; the same needs to be done here
to avoid duplicate definitions of lseek64_nocancel.

Signed-off-by: Bernd Schmidt <[email protected]>

Remove pragma weak for undeclared symbol

pthread_initialize is a static function and should not be mentioned in a
header.  The #pragma weak for it appears to confuse gcc-4.7.

Signed-off-by: Bernd Schmidt <[email protected]

Remove use of attribute_shared_hidden

This attribute is not defined anywhere. Removed its use to make the file
compile.

Signed-off-by: Bernd Schmidt <[email protected]>

nptl: sh: fix race condition in lll_wait_tid

Make a local copy of the tid value to avoid a race condition,
as the value could have been changed to 0, thus using a pointer
it would have been passed to the lll_futex_wait modified.

Signed-off-by: Stas Sergeev <[email protected]>
Signed-off-by: Carmelo Amoroso <[email protected]>

Revert: buildsys: clean up libubacktrace linker script handling

Signed-off-by: Kevin Cernekee <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

libubacktrace: temporarily workaround link issue

temporarily work around circular dependency in linking that was
introduced by 01c125c3bd8f949f8e5711e09152859eecd1b004

Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

remove arm specific sysdep.h from linuxthreads new

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

remove sysdep.h from arch specific string implementation

Remove hardcoded path from xtensa, we have sysdep.h in path

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

remove cris/fork.c, unused

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

update arc4random from bug #885

Add config option to provide arc4random without device access.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

epoll.c: add cancellation to epoll_[p]wait()

While there, fix epoll_pwait syscall, it takes 6 arguments

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

include pthreadP.h for SIGCANCEL

based on a patch from Kevin Cernekee <[email protected]>

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

linuxthreads.old: build all objects twice, once for shared lib and once for static

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

internals.h: mark __pthread_message hidden

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

linuxthreads.old: move libpthread_hidden_proto to header

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

linuxthreads.old/internals.h: make some internal functions hidden

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

signal.h: needs size_t

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

sched.h: update header, needs size_t

While there, guard __clone[2] with _LIBC

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

sigset-cvt-mask.h: add a guard to allow including it twice

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

signal: remove sigblock, siggetmask and sigsetmask

rcmd.c uses sigblock and sigsetmask, make the function static and include them directly until
a rewrite is done.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

bits/types.h: remove thread types, users should include pthread.h

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

linuxthreads: guard *tsd* related stuff correctly

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

error.c: no need for __error and __error_at_line

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

linuxthreads: style update

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

linuxthreads: use __UCLIBC_HAS_TLS__ consistently

replace USE_TLS, HAVE___THREAD and USE___THREAD with __UCLIBC_HAS_TLS__

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

move __libc_pthread_init prototype to pthread-functions.h

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

forward.c: no need for attribute_hidden, provided by prototype

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

libc_pthread_init.c: include only what is necessary

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

linuxthreads.old: cleanup a bit

Use __UCLIBC_HAS_TLS__ instead of USE___THREADS (although this LT implementation
will never support TLS).
Disable unused/unneeded members of the pthread_functions structure.
No redirect/forward for _pthread_cleanup_push/pop, it would have not worked anyway
due to the fact, that the structure member was not initialized. Disable it's possible
internal use in libc-lock.h.
Avoid using internals.h in libc_pthread_init.c (moving a prototype to pthread-functions.h).

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

fts.c: add a comment about wrong usage of _lfs_64.h

This file needs anyway some massage (style update), I'll leave the fix
to the committer.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

linuxthreads.old_db: style update

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

NPTL: rename __new_sem_* to sem_*

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

linuxthreads.old: remove __old_sem_* and rename __new_sem_* to sem_*

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

sigqueue.c: rewrite a bit

Use sizeof(info) instead of sizeof(siginfo_t).
stubs.c: add sigqueue stub.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

add posix_madvise.c

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

change _NSIG / 8 to __SYSCALL_SIGSET_T_SIZE in common code

Since mips has different kernel sigset_t, use the new macro in common
code that is used by mips as well.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

make arch specific cacheflush, readahead and sysmips LINUX_SPECIFIC dependent

Remove the related headers.
Adapt sh's type to the one used everywhere and add prototype for it.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

shm.c: do not use __libc_X internally

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

sigqueue.c: do not use __libc_X name internally

__libc_X names are intended to be used in other uClibc provided libs,
but not in libc.
Mark the syscall __always_inline.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

sigpause.c: provide the X/Open variant, since the BSD version is deprecated

Do not export __sigpause.
Provide __bsd_sigpause (unprototyped) if anyone may need it.
Adapt cancellation to use cancel.h.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

socketcalls.c: rewrite to use cancel.h

__socketcall.c: remove guard, we definitely need this syscall
Re-added guard plus added comment (Bernhard)

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

exec.c: remove duplicate attribute_hidden

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

vax/statfs.h: common one is good for vax

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

vax/machine-gmon.h: remove, unneeded

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

e1/bits/unistd.h: remove unneeded bits

If an arch does not support some option, that has to be coded in Config.in

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

xstatconv: cleanup includes

xstatconv.h needs features.h to really "see" config options
xstatconv.c does not need sys/syscall.h

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

use open_not_cancel_2 instead of open_not_cancel

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

not-cancel.h: update common version and make sure we use this one

Update file (same as in NPTL).
Disable unused parts, the remaining inlines will be fixed later.
Copy it to include to be sure that we use this one independently of
chosen threads.

Provide write,close and waitpid_not_cancel for LT new.
Use wait4 syscall instead of waitpid syscall (kernel says so).
Provide open_not_cancel and close_not_cancel for librt's spawn.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

pause.c: add back usage of pause syscall

No idea why it was removed when NPTL was added,
but glibc uses it as well.

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

not-cancel.h: use the non-cancellable functions in libc instead of inlining code

   text    data     bss     dec     hex filename
 272224    2298   17576  292098   47502 lib/libuClibc-0.9.32-rc3-git.so.old
 271806    2298   17576  291680   47360 lib/libuClibc-0.9.32-rc3-git.so

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

wrapsyscall.c: add cancellable fcntl64

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

nptl: remove sigaction, sigprocmask, and sigfillset from libpthread

Having them defined in both places was causing errors with static linking

Signed-off-by: Austin Foxley <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

pread_write.c: make all archs use common code

c6x does not need own version at all

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>

add cancellation to generic pread_write

Prepare the file to be used in all arch specific files

Signed-off-by: Peter S. Mazinger <[email protected]>
Signed-off-by: Bernhard Reutner-Fischer <[email protected]>