h8300: Makefile update

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

h8300: Add new feature

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

h8300: headers update

- wire up new kernel

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

h8300: Assembly functions

- remove symbol prefix
- new startup
- new clone syscall support

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

h8300: 64bit integer support

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

h8300: config update

- New toolchain
- Add new flags

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

add thanks file

Revert "Do not define unimplemented functions"

This reverts commit bd3eaf83ef1b4954b6c0e7ba8bbdd29b2cd4a833.

They are now implemented.

disabled ARC tests working now

As reported by Alexey Brodkin <Alexey.Brodkin@synopsys.com>
these tests do not fail anymore. After upgrading binutils/gcc
tests compile fine.

return NULL for realloc(p,0) like glibc

See discussion here about the issue:
https://sourceware.org/bugzilla/show_bug.cgi?id=12547

Fixes testsuite errors.

simplify malloc, remove sbrk support

stick with one malloc implementation for all

Supporting three different malloc implementations seems
a big overhead to be avoided. Just use malloc, which
works for MMU/no-MMU devices just fine.

fix static linking of pthread apps

When compiling python you get duplicate symbol problem.
Seen in the autobuilders of buildroot project.

use weak to fix f.e. cdrkit static compile. fixes #3

fix compile error when LDSO_RUNPATH_OF_EXECUTABLE is set

remove more of the link_warnings

Only the stub warnings left for now.

remove link warnings

As recently discussed on the pgsql mailinglist, this
warnings are more or less useless and some configure scripts
are failing when these warnings are enabled.

http://www.postgresql.org/message-id/20150320132351.GS3636@alvh.no-ip.org

remove regex old and fnmatch old

for xtensa this is still required to avoid build breakage

we need -fPIC for the new test for m68k binutils problem

remove sh64 support

No real hardware available. The project for sh64 with sh5 seems
dead since 10 years.

Revert "gcc 4.9.x produces some calls to abort()"

This reverts commit 8d73c06c7a78745a50dc8683fd117aeacd71a04b.

Fixed in a better way by Bernhard in uClibc.

gcc 4.4 does not have __builtin_unreachable

For avr32 we still use gcc 4.4 compiler, so exlude the usage
of __builtin_unreachable here.

disable new tests, atomic.h is missing

merge uClibc master

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

okay, chicken-egg-problem solved really now. (was xtensa no thread failure)

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>

Makefile.in: add missing dependency on bits/sysnum.h to $(pregen-headers-y)

This fixes the following build error:

  GEN include/bits/sysnum.h
  GEN libpthread/nptl/sysdeps/unix/sysv/linux/structsem.h
  GEN libpthread/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.h
  GEN libpthread/nptl/sysdeps/unix/sysv/linux/lowlevelbarrier.h
  GEN libpthread/nptl/sysdeps/unix/sysv/linux/structsem.h
  GEN libpthread/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.h
  GEN libpthread/nptl/sysdeps/unix/sysv/linux/pthread-pi-defines.h
  GEN libpthread/nptl/sysdeps/unix/sysv/linux/lowlevelbarrier.h
  GEN libpthread/nptl/sysdeps/unix/sysv/linux/pthread-pi-defines.h
In file included from ./libpthread/nptl/pthreadP.h:25:0,
                 from <stdin>:2:
./include/sys/syscall.h:24:25: fatal error: bits/sysnum.h: No such file or directory
 #include <bits/sysnum.h>
                         ^
compilation terminated.
  GEN libpthread/nptl/sysdeps/unix/sysv/linux/lowlevelcond.h
make[1]: *** [libpthread/nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.h] Error 1

Signed-off-by: Max Filippov <jcmvbkbc@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>

Add fix from OpenWrt for MIPS64 N64 ABI

https://dev.openwrt.org/browser/trunk/toolchain/uClibc/patches-0.9.33.2/616-mips_fix_stat_time.patch

When booting in Qemu you get for example failures from mdev -s otherwise.

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>

resolve bfin with binfmt flat compile errors

gcc for bfin does not support -msoft-float.
Do not enable FDPIC stuff, when compiling FLAT binaries.

remove duplicate entries

remove NAN selection, better do it in your build system

With older gcc than 4.9.x, this breaks the build.
These specific compiler flags belongs better to your
favorite build system.

add defines from GNU libc to fix ltrace compile

Closes ticket #4.
http://www.uclibc-ng.org/trac/ticket/4

fix regression for ARM thumb mode

Sync with GNU libc, see here why r7 is not usable for
thumb mode:
https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/arm/sysdep.h;h=37eac192b1e2e7f53f112b16450b9ce57054e27f;hb=HEAD
Remove old OABI support.

Fixes build breakage for ARM noMMU builds.
Still no runtime testing.

should have test it better, fix non-thread compile

fix non-thread compile for xtensa

Merge remote-tracking branch 'origin/upstream'

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>

symbol got renamed to __UCLIBC_HAS_LINUXTHREADS__

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>

sync with uClibc

what the fuck.

This reverts commit 8a4eaece396459ccb0fb8a9f25ace1345ee92cae.

gcc 4.9.x produces some calls to abort()

For sh4/xtensa architectures there is an optimization
bug, which does not allow to compile ld.so with gcc 4.9.2.
Disable this optimization for sh4/xtensa and ld.so compile.

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>

workaround is no longer needed for gcc 4.8.x/gcc 4.9.x