ARC: don't hard-code ELF_NGREG

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[updated changelog]

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC/signal: shield sa_restorer from compiler toggle side-effects

when building uClibc with -O0 (DODEBUG build) the default sigrestorer
had some extra glue code generated for stack manipulation which was
messing up resume from signal path.

So annotate the function with -Os so that gcc would only generate the
bare min 2 instruction TRAP sequence

Reported-and-Debugged-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC: switch to NPTL

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

Add support for R_ARC_NONE relocations.

The R_ARC_NONE relocation is generated when --gc-sections, used by the
compile time linker, removes some sections.  This is completely normal,
and we can see that all other targets (based on random sampling) have
support for R_*_NONE relocations (named for each target).

Handling R_ARC_NONE involves doing nothing with it, which is nice and
easy.

Signed-off-by: Andrew Burgess <andrew.burgess@embecosm.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include: update atomic.h from glibc

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

test: Add SIMULATOR_uclibc and SIMULATOR_glibc

where SIMULATOR_glibc is an optional simulator to run host binaries and
SIMULATOR_uclibc is an optional simulator to run target (uClibc)
binaries.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

utmp: always have at least utmpx

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

NPTL: SH: silence warning

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

SH: add 't' to syscall clobber list

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ldso: mark _dl_exit as noreturn

Otherwise gcc might not understand that oom() ended control-flow and
might emit an (untaken) reference to abort() in _dl_update_slotinfo()
on e.g. SH4 which breaks linking ld-uClibc.so.
Arguably -ffreestanding should prevent GCC from emitting this
'.global abort' but alas, it does not, which is another bug..

Also mark the function cold to further lower the incoming frequency and
branch probability.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

test: tweaks

Fix arc4random exclusion for real.
Silence warning about missing prototype for external helper-function in
tst-scandir

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include: Expand malloc-family comments

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

utmp: favour POSIX utmpx over SVID utmp

Note: _PATH_UTMPX == _PATH_UTMP and the utmp struct is identical to the
utmpx struct so this only changes the external API entrypoints and NOT
the underlying data source.

This saves about 500b (~1300b from previously ~1950) while at it.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

utmp: Remove unneeded alias

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

mips: switch float_t to float

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libm: honor NO_LONG_DOUBLE in ldouble_wrappers

Fixes SH build breakage due to attempts to define hidden defs for
unavailable long double functions.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libcrypt: Rename some internal macros

to avoid clashes

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

buildsys: fix IS_IN_lib* for .s

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

utmp: indent

indent only, no code changes

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

utmp: Remove unneeded aliases

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

utmp: add _unlocked suffix to internal helpers

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

buildsys: HAS_UTMP (XPG2, SVr4 compat) knob

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: TIME64_COMPAT32 for sparc, mips

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

Revert "utent.c, wtent.c: move functions from utxent.c"

This reverts commit 84135275cfeebc0b233c1c96eeada4d4178a0b18.

This change is said to make systemd deadlock (cannot reproduce this)

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Conflicts:
include/utmp.h

test: add utmpx test

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: add getrandom(2)

Introduce a <sys/random.h> for it.

/* FIXME: aren't there a couple of __restrict and const missing ?
 */
extern int getrandom(void *__buf, size_t count, unsigned int flags)
    __nonnull ((1)) __wur;

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

librt: Use -nodefaultlibs instead of -nostdlib

nostdlib disables linking in startup files too which is not
what we want here since it needs to resolve __dso_handle
which comes from crtbeginS.o, otherwise librt has this
undefined reference to a weak undefined __dso_handle that
shows up as error (with gold linker)
when shared libraries are being built which are
linking in librt

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

nptl/atfork: Hide pthread_atfork in shared versions

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: Fix vfprintf compilation without HAS_FLOATS

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

nptl/arm: Move aeabi_read_tp to uclibc_nonshared.a

Otherwise it creates wrong references from shared libs

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

atexit_old: Do not add it to shared libc

atexit should only be in either uclibc_nonshared.a
shared libc case or libc.a in static build case

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

test: enable libm test log2

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

extra: add clang flags for gen_bits_syscall_h

Closes bugzilla #6008

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

malloc.h: Add missing feature guard

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

malloc-standard: Add locking to malloc_trim

Closes bugzilla #4586

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

malloc: checked_request2size failure deadlocks

For some rarely cases(almost App bugs), calling malloc with
a very largre size, checked_request2size check will fail,set
ENOMEM, and return 0 to caller.

But this will let __malloc_lock futex locked and owned by the
caller. In multithread circumstance, other thread calling
malloc/calloc will NOT succeed and get locked.

Signed-off-by: Zhiqiang Zhang <zhangzhiqiang.zhang@huawei.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libm: Add missing C99 float/ld wrappers

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

test: skip arc4random on glibc

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

buildsys: fix IS_IN_lib* for .i

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: update strverscmp

Closes bugzilla #7936

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

nptl: fix exclusion of pthread_setconcurrency.c

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include: silence __leaf warning

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

test: Tweak arc4random exclusion

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

resolv: fix unaligned tmp buffer corner-case

On execution of "inet/gethost_r-align" test I noticed failure due
to unaligned access (instaed of 4-byte aligned 1-byte aligned
address was attempted to be accessed).

Further investigation confirmed this nice and helpful test failure.
Following commit removed usage of ALIGN_BUFFER_OFFSET on entry to
__read_etc_hosts_r():
http://git.uclibc.org/uClibc/commit/?id=f65e66078b9f4d2d7f0fc336dee36e78fc467c0f

So indeed if target architecture doesn't allow unaligned access
and provided tmp buffer is not word aligned (and we will deal with pointers
which means word-sized data units), then CPU will fail during execution.

In case of ARC we'll see "Unaligned access" exception like this:
 --->8---
 # potentially unexpected fatal signal 7.
 Path: /root/uClibc/test/inet/gethost_r-align
 CPU: 0 PID: 5514 Comm: gethost_r-align Not tainted 3.13.11 #2
 task: 8f42a580 ti: 8f40e000 task.ti: 8f40e000

 [ECR   ]: 0x00230400 => Misaligned r/w from 0x5fdab341
 [EFA   ]: 0x5fdab341
 [BLINK ]: 0x20032a18
 [ERET  ]: 0x20032a3c
     @off 0x12a3c in [/lib/libuClibc-0.9.34-git.so]
     VMA: 0x20020000 to 0x20062000
 [STAT32]: 0x00000086 : U         E2 E1
 BTA: 0x20046014  SP: 0x5fdab260  FP: 0x00000000
 LPS: 0x20046064 LPE: 0x20046068 LPC: 0x00000000
 r00: 0x5fdab341 r01: 0x00000005 r02: 0x00000015
 r03: 0x00000000 r04: 0x5fdab358 r05: 0x00000000
 r06: 0x0a0a0a00 r07: 0x00000000 r08: 0x0000003f
 r09: 0x20067050 r10: 0x00000000 r11: 0x00000014
 r12: 0x00000001 r13: 0x00000000 r14: 0x20060660
 r15: 0x20060661 r16: 0x00000006 r17: 0x5fdab371
 r18: 0x00000018 r19: 0x5fdab2b4 r20: 0x00020000
 r21: 0x00000000 r22: 0x00029068 r23: 0x5fdab371
 r24: 0x00010000 r25: 0x00000000
 --->8---

To fix this problem we'll re-introduce tmp buffer force alignment
before config parser invocation.

Signed-off-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

unistd.h: put getppid under XOPEN2K8

Add __LEAF to all __THROW, introduce non-leaf __THROWNL
Adjust affected spots accordingly.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

buildsys: create linker script with proper flags

We were not passing the correct use-ld and -m{32,64,...} when creating
the linker script. Revisit for gold later on anyway.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

spawn.h: Fix !_GNU_SOURCE compilation

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

sparc/clone.S: guard tcb-offsets.h include with RESET_PID

Otherwise we have a broken scenario with non-threading builds.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: silence warning

include/bits/sigset.h:219:62: warning: right-hand operand of comma expression has no effect [-Wunused-value]
include/bits/sigset.h:210:63: warning: right-hand operand of comma expression has no effect [-Wunused-value]

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ldso: silence warning

In file included from ldso/ldso/ldso.c:87:0:
ldso/ldso/dl-startup.c: In function '_dl_start':
ldso/ldso/dl-startup.c:184:32: warning: cast from pointer to integer of differennt size [-Wpointer-to-int-cast]
   auxvt[AT_BASE].a_un.a_val =  (Elf32_Addr) &_begin;

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ldso: silence warning

symbol_addr was set but not used

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

Allow use of executable RUNPATH/RPATH when finding libraries.

This option will modify ldso so that it will use the executables
RUNPATH/RPATH to find to find libraries even though this behavour
is not standard.  Setting this option causes the uclibc dynamic linker
behavour to match the glibc dynamic linker.

Signed-off-by: Steve Ellcey <sellcey@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC: Remove unused EM_ARC_A5

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include/elf.h: bump EM_NUM

and remove a few ancient entries

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

elf: Add STT_GNU_IFUNC from glibc

perf in upstream Linux kernel 3.17 onwards expects STT_GNU_IFUNC
replicate it from glibc

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

sync_file_range: fix standard UCLIBC_SYSCALL_ALIGN_64BIT handling

Currently UCLIBC_SYSCALL_ALIGN_64BIT is not explicitly handled. Fix that
and make sure the special handling is done for powerpc/xtensa which use
UCLIBC_SYSCALL_ALIGN_64BIT but don't use hole punched syscall handler in
kernel.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

posix_fadvise: handle 2 variants for SYSCALL_ALIGN_64BIT

arm/powerpc/xtensa pass @advice as 2nd arg to syscall (vs. canonical 4th)

Current code however does this for UCLIBC_SYSCALL_ALIGN_64BIT which
powerpc/xtensa also happen to define.

This is not true for ARCv2 ISA and possibly other arch of future with
64-bit even register requirement, which uses the standard syscall
handler in kernel.

Fix that by providing 2 variants of SYSCALL_ALIGN_64BIT

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARCv2: optimised string routines

Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARCv2 ISA support

This is next gen Instruction Set Architecture from Synopsys and basis
for the ARC HS family of processors.

http://www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor&elq_mid=5732&elq_cid=458802
http://www.synopsys.com/IP/ProcessorIP/ARCProcessors/arc-hs/Pages/default.aspx

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC: Add GNU glob to ARC defconfigs

GNU glob is required by make.

Signed-off-by: Anton Kolesov <anton.kolesov@synopsys.com>
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: add setns()

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

Add eventfd_read() and eventfd_write()

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

signal.h: elide memset from sigemptyset

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC: sigaction: inline syscall trap

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC: sigaction: fold default sigrestorer into "C"

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC: siagction: opencode memcpy

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC: remove stale TRUNCATE64_HAS_4_ARGS

Not relevant anymore since commit e8cc14e59ed3f66b84e,
"libc: rename TRUNCATE64_HAS_4_ARGS to SYSCALL_ALIGN_64BIT"

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC defconfigs: enable some items

perf: UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
elfutils: UCLIBC_HAS_PROGRAM_INVOCATION_NAME

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC: add configuration option for MMU page size

ARC CPU may have MMU page size of 4/8(default)/16k.
uClibc needs to have page size configured accodring to HW it will be run on.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ARC: Conditionalise certain relocations as provided by TLS tools only

uClibc mainline supports NPTL which in turns depends on TLS support in
the tools (gcc/binutils), which is yet to be merged in dev branches.

However there is some non NPTL code in uClibc, added as part of NPTL
effort, which relies on certain relocations only provided by NPTL
binutils. As a result building the current upstream even for LT.old
breaks.

So conditionalize that code on tools, bu tin lack of specific versions,
we use NPTL enabling as a sign the tools are equipped to handle those
relos.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

Update MIPS configuration rules.

Add a configuration choice for the NaN format on MIPS (either the
standard (legacy) format or the newer IEEE 2008 format.

Change how CPU_LDFLAGS are set for MIPS.  Use the same value as
CPU_CFLAGS since CC is used to do linking.  This ensures consistency
between compiles and links and adds support for N32 ABI to linking.

Signed-off-by: Steve Ellcey <sellcey@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

buildsys: fix IS_IN_lib* for out-of-tree builds

41537a770b46f2376e74af58ba4885749339e81e erroneously stripped the
top_builddir off the per-directory flag setting which works fine for
in-tree builds but is not correct for O=
Just use the full path of the target files to apply the flags to fix
that thinko.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: sync_file_range missing comma

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: ppc64 etc: Fix sync_file_range

Fix copy'n paste error for ppc64 and other sync_file_range2 arches

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

xtensa: ldso: drop unused address calculation from _dl_linux_resolve

The result of the calculation in register a12 is never used as the
function _dl_linux_resolver only accepts 2 arguments. Drop it.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

xtensa: ldso: coalesce dl_mprotect address ranges

This noticeably lowers the number of mprotect calls at program startup,
e.g. for busybox: 7 calls vs 1835 calls.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

add argument check in mknod

mknod() in glibc/eglibc will check the argument, like this,
  ...
  if (k_dev != dev) {
      __set_errno (EINVAL);
      return -1;
   }
  ...
So add argument check in uclibc's mknod() too.

Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

add argument check in setenv()

setenv() in glibc/eglibc will check the argument, like this,
  ...
  if (name == NULL || *name == '\0' || strchr (name, '=') != NULL)
    {
      __set_errno (EINVAL);
      return -1;
    }
  ...
So add argument check in uclibc's setenv() too.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

nptl: compile pt-vfork in ARM-mode

amending commit 49a67cf67d5a7194214566bc730ee7e28d55bbe1
could need a thumb implementation..

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: Avoid redundant setting of ENOMEM

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libcrypt: return NULL on unsupported salt

BZ #7808 asks us not to fallback to DES if the optional SHA are disabled
but requested by the user.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

test: Adjust passed options

to follow suit 067637375658047d70c296606ae17ef0bc86499d

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

mkostemp: fix implementation

mkostemp(char *template, int flags) generates a unique temporary
filename from a template.  The flags parameter accepts three of
the same flags as open(2): O_APPEND, O_CLOEXEC, and O_SYNC.  The
current implementation of mkostemp(3) does not respect the flags
and in fact confuses the flags with the file mode which should
always be S_IRUSR | S_IWUSR.  This patch corrects this issue.

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

test: Some more tests under conditionals

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

stdio: Fix printing 0.0

We were relying on FE_DIVBYZERO being turned off when printing
"%f", +-.0
Avoid the whole issue by looking at the sign-bit (in a rough
approximation).

Note that we do not handle gracefully:
  printf ("\n%llf\n", -0.0);
  printf ("\n%llf\n",  0.0);
nor %Lf for both when NOT cast to long double. Avoiding an FPE due to
broken numbers like these does not make sense to me.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

unistd: allow to turn off getopt_long

The GNU variant of getopt() previously had no way to turn off
getopt_long() support.

test: disable ptytest unless HAS_PTY

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

config: move STDIO_FUTEXES up a bit

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

sigaction: Fix !HAS_REALTIME compilation

In file included from ./include/signal.h:279:0,
 from libc/sysdeps/linux/x86_64/sigaction.c:22:
./include/bits/sigaction.h:32:29: error: unknown type name 'siginfo_t'
   void (*sa_sigaction)(int, siginfo_t *, void *);

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

mips: rename siginfo _timer members

Rename _timer[12] to si_tid and si_overrun to fix compilation of
strace-4.9+

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

buildsys: remove some obsolete optimization CFLAGS

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

locale: Add wcsftime()

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

nptl: compile pt-vfork in ARM-mode

could need a thumb implementation..

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

Config.in.arch: enable long double math for xtensa

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

statfs: fix compile error when UCLIBC_LINUX_SPECIFIC is not set

statfs() is a Linux-specific function.  When building without
UCLIBC_LINUX_SPECIFIC set, libc_hidden_proto(statfs) in
include/sys/statfs.h is unmatched with libc_hidden_def(statfs)
in libc/sysdeps/linux/common/statfs.c, leading to a compile
error.  This patch fixes this, as well as adds statfs() to the
list of Linux-specific functions in extra/Configs/Config.in.

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

m68k: libc: add fmovem* mcffpu condition

add fmovem{x,.d,.*} ISA conditional
Fixes assembler errors for 5206.
isa_a, isa_b (or a+, don't remember) do not have emx, use em.d there.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

sparc: update ptrace.h to latest from glibc

Update sys/ptrace.h to latest glibc release for a lot of missing
definitions.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

powerpc: update ptrace.h to latest from glibc

Update sys/ptrace.h to latest glibc release for a lot of missing
definitions.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

buildsys: remove now redundant lib placement defines

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: silence missing prototype warning

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>