ldso: bfin: shrink sram mapping func

The L1 data and L2 code paths duplicate a lot, so unify them.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

ldso: fdpic: clean up style

There should (hopefully) be no functional changes here.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

ldso: fdpic: unify duplicate bfin/frv logic

Much of the logic in the bfin/frv subdirs is FDPIC specific and not arch
specific.  So start a new fdpic/ subdir to keep common things.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

make ARRAY_SIZE commonly available internally

Some places have opencoded the ARRAY_SIZE macro, so move it to a global
internal location so other places can leverage it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

ldso: use __func__ rather than __FUNCTION__

The former is part of a standard (C99) while the latter is not.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

buildsys: drop manual TARGET_SUBARCH .config lookup

We source the .config file, so there should be no need to manually extract
it.  If the sourcing doesn't work, then a lot of things break in this file.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

include/: ignore new sys/eventfd.h symlink

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

buildsys: s/CROSS/CROSS_COMPILE/g

Use CROSS_COMPILE instead of CROSS as other projects are doing
(i.e. kernel, busybox, buildroot).
CROSS is still supported for backward compatibility only

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

nptl: add missing pt-tempname.c

fix bd3c1a2495cbcb51b606f8e4892fcd127f91e645 forgotten file.

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

libc: do not rely upon ulimit kernel syscall.

On several architectures __NR_ulimit syscall number is currently
defined but it is remapped onto sys_ni_syscall, while on other
architectures they are not longer defined.
So use {get,set}rlimit only to implement ulimit interface.

It fixes LTP ulimit01 test case.

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Acked-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libdl: fix size parameter when unmap library in dlclose

Fix size parameter when unmap a library by means of dlclose, by
taking into account the p_vaddr of first PT_LOAD segment, so it works
also for prelinked shared objects.
Unmapping of dlopen shared libraries is broken since
94cc6edb78a12655c0602a246fa1cbdc8c6d0ad9

Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

stdio: add support for "e" flag with fopen()

Support this useful glibc extension for optionally setting O_CLOEXEC
on fopen streams.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

libcrypt: do not cast away const of key/salt

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

libubacktrace: use .so.$(ABI_VERSION)

Thanks to William Pitcock for noticing

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

nptl: sem_open: use open64 if LFS

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

misc: hide __gen_tempname

fix signed vs. unsigned comparison warnings while at it

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

stdio: hide _stdio_validate_FILE

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

regex_old: make some internal helpers static

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

inet: hide relocations

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

unistd: hide relocations

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

resolv: hide relocations

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

Add a C6X-specific ipc.h.

Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>

buildsys: do not install ld.so linker script

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

libubacktrace: Conditionally link libgcc_eh

When libubacktrace is not enabled there is no need to link in libgcc_eh
Fixes bootstrap failures with (gcc-4.5.x) stage1 compilers that --disable-shared

Signed-off-by: Jason Woodward <jason.woodward@timesys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libm: pass CFLAGS to e500 fenv

As noted by Jason Woodward

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

honor UCLIBC_HAS_FENV for e500

Signed-off-by: Jason Woodward <jason.woodward@timesys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

Fix e500 fpu libm build

Define libm_ARCH_fpu_OUT in libm/powerpc/e500/Makefile.arch as it is used
in libm/powerpc/e500/fpu/Makefile.arch

 libm_ARCH_OBJ:=$(patsubst $(libm_ARCH_fpu_DIR)/%.c,$(libm_ARCH_fpu_OUT)/%.o,$(libm_ARCH_SRC))

This appears to have been broken since cd3a494e99fa4bcad1c2a621b71361005528bead

Signed-off-by: Jason Woodward <jason.woodward@timesys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc: flesh out linux scheduler functions

Most stuff was taken from the eglibc.

Signed-off-by: Henning Heinold <heinold@inf.fu-berlin.de>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ldso: support RTLD_NOLOAD

So application query if specified module is loaded or not with
dlopen.

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

stdlib: add qsort_r

GNU extension like qsort but takes a 3 parameter comparision function.

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

powerpc: Fix typo in clone()

Thanks to strauman at slac stanford edu for noticing

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

Add stub for eventfd.

Warn if the enventfd() function is not implemented.

Signed-off-by: Jean-Christian de Rivaz <jc@eclis.ch>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libm: implement a generic sincos().

We already provide sincos() on some archs, so we should ship a generic version.

Signed-off-by: William Pitcock <nenolod@dereferenced.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libm: add cabsf() and cabsl() functions.

Signed-off-by: William Pitcock <nenolod@dereferenced.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libm: implement generic cexp(), cexpf() and cexpl().

The cexp*() family of functions is defined by the C99 math standard as
implementing exponential functions for complex types.

Signed-off-by: William Pitcock <nenolod@dereferenced.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

config: document eventfd

in LINUX_SPECIFIC

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

setegid: use setresgid conditionally

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

stubs: remove leftover undefs

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

buildsys: eventually remove sys/eventfd.h

rm sys/eventfd.h unless linux_specific was chosen

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

stubs: handle linux module functions

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

stubs: handle linux-specific

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

stubs: fix inverted socket logic

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

stubs: undef linux specific unless they were asked for

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

Add eventfd support.

Hello,

I whould like to share this simple patch that add the eventfd call to
uClibc. Please review so it can be accepted to be merged.

Jean-Christian

Signed-off-by: Jean-Christian de Rivaz <jc@eclis.ch>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

sparc: fix build for linuxthreads.old

sparc target has assembly implementations of clone.S that doesn't
get used, and thus the build breaks.  Also, sparc is missing a header file in
pthreads.old that exists in pthreads.new.

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

resolver: add a dependencies for DNS resolver feature

DNS resolver needs at least IPV4 or IPV6 support enabled
to be correctly built. Add such dependency.

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

pthreads: fix build when DNS resolver is not enabled.

Resolver state is only available if DNS resolver is enabled.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

sh: fix build for SH in !NPTL case

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

linuxthreads: fix typo in __UCLIBC_HAS_IPv4__ macro

IPv4 should has 'V' capital letter.

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

ldso: let people disable to lookup into LD_LIBRARY_PATH

On hardened system it could be useful to disable the use
of LD_LIBRARY_PATH.

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

ldso: minor fixes to implicit search path

Do not defined _dl_ldsopatch if implicit search path if not enabled,
and avoid to call search_for_named_library (even if it is able to handle
NULL search path).

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

ldso: disable the implicit path search in stand-alone mode as well

Honour LDSO_SEARCH_INTERP_PATH knob option also when running in
stand-alone mode.

Signed-off-by: Rune <u-uclibc-y2lt@aetey.se>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

config: add support for <custom>_defconfig

Add support for platform specific and/or custom defconfig
per arch. They have to be suffixed by '_defconfig' and are
automatically detected and displayed by issuing 'make ARCH=<arch> help'.

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

config: revise defconfigs strategy

Revise the way defconfigs are defined, by renaming them
from defconfigs/<arch> to defconfigs/<arch>/defconfig.
It allows to have multiple defconfigs per arch.

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

config: tidy-up of config targets

Introduce two local variables for 'conf' and 'mconf' binaries.
Use $^ automatic variable to invoke [m]conf tool.

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

resolv: fix memory leak

Timothy Holdener writes:
small memory leak in __dns_lookup() when the A record
in the DNS answer is preceded by one or more CNAME records.

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

resolv: commentary typo fix

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

gethostbyname_r: set correct h_errno upon failure

previously gethostbyname_r(ipv6.google.com);herror("ERROR:") gave
Answer name = |ipv6.google.com|
Answer type = |5|
herrno=1
h_errno=0
ERROR:: Error 0

herrno=1
h_errno=1
ERROR:: Unknown host

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

resolv: fix compilation

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

libdl: remove _dl_ldsopath from libdl.a

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

ldd: take LD_LIBRARY_PATH into account

Extend the environment variables adding the LD_LIBRARY_PATH
if actually passed when doing shared library tracings through
the ld.so trace capability.
This is possible only using the system dynamic linker in stand-alone
mode to avoid any vulnerability.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

Config.in: fix erroneously deleted line

blame e9d74358093b61e2e597fa9e066ba0468df14cba

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

ldso: silence harmless warning for !LDSO_PRELINK_SUPPORT

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

libc: fix daylight saving time handling

The algorithm computing daylight saving time incorrectly adds a day for
each month after January for leap years. The clock shift from/to DST can
be delayed if the last Sunday of a transition month is exactly seven
days before the first of the following month.

This change adds a day for the February month only.

Signed-off-by: Guillaume Bourcier <guillaumebourcier@free.fr>
Signed-off-by: Richard Braun <rbraun@sceen.net>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

ldso: unify pread syscall definition

A few arches want pread() defined, so move it to common code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ldso: bfin/frv: drop dead simulator code

Nowhere do we define DYNAMIC_LOADER_IN_SIMULATOR, so drop the little bit
of code that depends on it.  At least in the Blackfin case, we can run an
FDPIC ldso just fine under the simulator without hacks.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ldso: merge duplicate dl-syscalls.h code to common header

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

microblaze mmu/elf/shared lib support

microblaze can either be with mmu or without
If with, use elf rather than flat, and support shared libs

Signed-off-by: Ryan Flux <ryan.flux@emsolutions.com.au>
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

microblaze linux has no SDA support

The linker does not set up the Small Data Area symbols,
_SDA_BASE_ and _SDA2_BASE_ so don't try to resolve them

Signed-off-by: Ryan Flux <ryan.flux@emsolutions.com.au>
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

microblaze can be either big or little endian

Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

microblaze has long double support too

Signed-off-by: Ryan Flux <ryan.flux@emsolutions.com.au>
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

Use the generic bits/select.h for microblaze

This avoids warnings about type-punned pointers

Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

tests: ignore new inet test

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

tests: add fallback for mktemp()

If SuSv3 legacy support is disabled, then mktemp() isn't available, and
we end up getting a lot of build errors.  So add a fallback built on top
of tempnam() since that currently cannot be disabled.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

ldso: x86_64: delete unused variable

gcc informed me:
In file included from ldso/ldso/ldso.c:46:0:
ldso/ldso/x86_64/elfinterp.c: In function '_dl_do_lazy_reloc':
ldso/ldso/x86_64/elfinterp.c:294:6: warning:
variable 'symtab_index' set but not used [-Wunused-but-set-variable]

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

ldso: constify reloc array itself

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Defeat compiler optimization which assumes function addresses are never NULL

From email:
A warning for people who can be hit by the same or similar issue:
gcc 4.1.2 with -march=i486 here with -Os and even with -O2 or -O
is "optimizing away" the check
       if (_stdio_term)
in libc/stdlib/_atexit.c
which results in a "call 0" and a segfault at exit
if you do not happen to link in stdio.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>

config: tweak help text

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

resolv: simple optimizations and style/readability fixes

    text           data     bss     dec     hex filename
-   2915              0       0    2915     b63 libc/inet/ns_name_old.o
+   2656              0       0    2656     a60 libc/inet/ns_name.o
-    958              0       0     958     3be libc/inet/ns_parse_old.o
+    898              0       0     898     382 libc/inet/ns_parse.o

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

ldso: fix build with PRELINK enabled and !TLS

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

ldso: add missing include

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

inet: build all res_* and ns_* functions conditionally

This patch changes the build system so that all DNS resolver related
functions (ie, those starting with dn_, ns_ and res_) are only built if
UCLIBC_HAS_RESOLVER_SUPPORT is set. This means that the libc will lack
support for things that existed in the library before unless this new
config option is set. On the other hand, if users really need support
for resolver functions, they now get a more complete set, and the
library is smaller than before it is deselected.

Signed-off-by: Daniel Mack <zonque@gmail.com>

include/resolv.h: provide __res_state._u even if !__UCLIBC_HAS_IPV6__

This struct is used for IPv4 as well, so only make the members
conditional that are purely used by IPv6.

Signed-off-by: Daniel Mack <zonque@gmail.com>

inet/resolv: add res_ninit and res_nclose

Some reordering of existing functions was necessary in order to provide
this functionality.

Signed-off-by: Daniel Mack <zonque@gmail.com>

inet/resolv: add res_mkquery

Signed-off-by: Daniel Mack <zonque@gmail.com>

inet/resolv: add ns_initparse, ns_parserr, ns_skiprr and ns_msg_getflag

There are build 'ifdef L_ns_parse'.

Signed-off-by: Daniel Mack <zonque@gmail.com>

inet/resolv: add dn_skipname and ns_name_skip

One uses the other, so add them in one go.

Signed-off-by: Daniel Mack <zonque@gmail.com>

inet/resolv: Add dn_comp

Signed-off-by: Daniel Mack <zonque@gmail.com>

inet/resolv: add ns_name_pton, ns_name_pack and ns_name_compress

These are built '#ifdef L_ns_name'

Signed-off-by: Daniel Mack <zonque@gmail.com>

inet/resolv: add ns_{put,get}{16,32}

This patch introduces a new config directive
'UCLIBC_HAS_RESOLVER_SUPPORT' and adds the new symbols conditionally.

Signed-off-by: Daniel Mack <zonque@gmail.com>

libc/inet/resolv.c: comment on #endif lines

While reading this file, I found it rather confusing to relate the
"endif" lines to their opening counter-part. This patch adds comments to
most of these lines to denote what the actually do.

Signed-off-by: Daniel Mack <zonque@gmail.com>

extra/Configs/Config.in: drop "default n" lines

"default n" is the default default. No need to mention it explicitly.

Signed-off-by: Daniel Mack <zonque@gmail.com>

ldso/mips: Clean up warnings

Trivial fixes for these warnings:

  CC ldso/libdl/libdl.oS
In file included from ldso/ldso/ldso.c:46:0:
ldso/ldso/mips/elfinterp.c:88:1: warning: no previous prototype for '__dl_runtime_pltresolve'
ldso/ldso/ldso.c: In function '_dl_get_ready_to_run':
ldso/ldso/ldso.c:475:5: warning: assignment makes pointer from integer without a cast
In file included from ldso/ldso/ldso.c:1097:0:
ldso/ldso/dl-elf.c: In function '_dl_load_elf_shared_library':
ldso/ldso/dl-elf.c:811:3: warning: assignment makes pointer from integer without a cast

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

ldso/mips: dlsym() incorrectly matches undefined symbols

check_match() relies on checking for (sym->st_value == 0) to see if the
symbol is undefined.  This works reasonably well on most architectures,
such as ARM or i386:

$ readelf -s /lib32/libcap.so.2 | grep -E "\<malloc\>"
    17: 00000000     0 FUNC    GLOBAL DEFAULT  UND malloc@GLIBC_2.0 (2)

However, on MIPS, libbfd puts nonzero data in the st_value field to
facilitate resetting the symbol's GOT entry if the library that defines
the symbol gets unloaded:

$ mipsel-linux-readelf -s libfoo.so | grep -E "\<malloc\>"
    74: 00003140     0 FUNC    GLOBAL DEFAULT  UND malloc

This can cause check_match to report a false positive when examining the
external symbol reference.  Consequently dlsym() will return a bad pointer
to the caller.

Use the special MIPS logic from glibc-ports-2.13 to avoid this situation.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

ldso/mips: Enable bootstrap relocations

_dl_reltypes_tab[] is an array of pointers to constant strings:

Contents of section .data:
 20000 01000000 02000000 00000000 00000000  ................
 20010 70e50000 7ce50000 88e50000 94e50000  p...|...........
       ^^^^^^^^ ^^^^^^^^ ^^^^^^^^ ^^^^^^^^

(pointers are LE)

Contents of section .rodata:
 e570 525f4d49 50535f4e 4f4e4500 525f4d49  R_MIPS_NONE.R_MI
 e580 50535f31 36000000 525f4d49 50535f33  PS_16...R_MIPS_3
 e590 32000000 525f4d49 50535f52 454c3332  2...R_MIPS_REL32

These pointers require relocation:

DYNAMIC RELOCATION RECORDS
OFFSET   TYPE              VALUE
00000000 R_MIPS_NONE       *ABS*
0001fffc R_MIPS_REL32      *ABS*
00020010 R_MIPS_REL32      *ABS*
00020014 R_MIPS_REL32      *ABS*
00020018 R_MIPS_REL32      *ABS*

On MIPS, only GOT relocations are currently handled by ldso during
startup.  The net effect is that when running with "LD_DEBUG=reloc",
ldso itself crashes before the program even starts.  This is caused
by _dl_dprintf() dereferencing an unadjusted string pointer such as
0xe570.

This patch enables the missing relocations and allows LD_DEBUG to work
as designed.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

libdl: add option for controlling dl_cleanup

When debugging memory leaks with Valgrind, it is required that
dynamically loaded shared objects are not unloaded when a process exits,
otherwise symbols from those files aren't correctly resolved in
allocation traces. This patch adds the LDSO_NO_CLEANUP configuration
option to control this behaviour.

Signed-off-by: Richard Braun <rbraun@sceen.net>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

ldso: fix build error due to missing variable 'st'

Fix a build error triggered when LDSO_PRELOAD_FILE_SUPPORT is enabled
due to missing definition of 'st' variable.

Signed-off-by: Douglas Mencken <dougmencken@gmail.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

x86_64/elfinterp.c: Protect missed debug _dl_printf with __SUPPORT_LD_DEBUG__

Signed-off-by: Khem Raj <raj.khem@gmail.com>

mips/signalfd.h: SFD_NONBLOCK for mips is 0200 unlike 04000 commonly

Exposed by udev 171 which uses signalfd

Signed-off-by: Khem Raj <raj.khem@gmail.com>

Config.in.arch: Free UCLIBC_HAS_FPU setting from depending on UCLIBC_HAS_FLOATS

UCLIBC_HAS_FLOATS and UCLIBC_HAS_FPU are denoting two different aspects.
UCLIBC_HAS_FLOATS covers the floating point operations which has nothing
to do if you have FPU or not.

Signed-off-by: Khem Raj <raj.khem@gmail.com>