merge uClibc git master

104 files changed, 1869 insertions, 792 deletions

diff --git a/Makefile.in b/Makefile.in
index b4bc4b224..e76449372 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -294,6 +294,7 @@ HEADERS_RM-$(UCLIBC_HAS_THREADS)             += *thread*.h semaphore.h \
 	bits/initspin.h
 HEADERS_RM-$(UCLIBC_HAS_THREADS_NATIVE)      += atomic.h bits/atomic.h
 HEADERS_RM-$(UCLIBC_HAS_OBSTACK)             += obstack.h
+HEADERS_RM-$(UCLIBC_HAS_UTMP)               += bits/utmp.h utmp.h
 HEADERS_RM-$(UCLIBC_HAS_UTMPX)               += bits/utmpx.h utmpx.h
 HEADERS_RM-$(UCLIBC_HAS_WCHAR)               += wchar.h wctype.h
 HEADERS_RM-$(UCLIBC_HAS_WORDEXP)             += wordexp.h
@@ -310,6 +311,7 @@ HEADERS_RM-$(UCLIBC_LINUX_SPECIFIC)          += \
 	sys/perm.h \
 	sys/personality.h \
 	sys/prctl.h \
+	sys/random.h \
 	sys/reboot.h \
 	sys/sendfile.h \
 	bits/signalfd.h \
diff --git a/Makerules b/Makerules
index 1596988d2..fd6bb190d 100644
--- a/Makerules
+++ b/Makerules
@@ -30,6 +30,8 @@ objs: all_objs
 define add_IS_IN_lib
 ifneq ($(strip $(2)),)
 __add_IS_IN_lib := $(2)
+__add_IS_IN_lib += $(2:.o=.i) $(2:.os=.i) $(2:.oS=.i)
+__add_IS_IN_lib += $(2:.o=.s) $(2:.os=.s) $(2:.oS=.s)
 $$(__add_IS_IN_lib): CFLAGS-for-library-members:=$(CFLAGS-$(1)) -DIN_LIB=$(word 1,$(subst /, ,$(1)))
 endif
 endef
@@ -326,9 +328,10 @@ cmd_hcompile.o = $(HOSTCC) $(filter-out $(PHONY),$<) $(DEPS-$(notdir $@)) -c -o
 
 define create-lds
 	$(Q)$(RM) $@.lds
-	$(Q)$(CC) -nostdlib -nostartfiles -shared -Wl,-z,combreloc \
-	-Wl,-z,relro -Wl,--hash-style=gnu -Wl,-z,defs \
-	-Wl,--verbose 2>&1 | LC_ALL=C \
+	$(Q)$(CC) $(LDFLAG-fuse-ld) $(CPU_LDFLAGS-y) \
+	-nostdlib -nostartfiles -shared -Wl,-z,combreloc \
+	-Wl,-z,relro $(CFLAG_-Wl--hash-style=gnu) -Wl,-z,defs \
+	-x c /dev/null -Wl,--verbose 2>&1 | LC_ALL=C \
 	$(SED) -e '/^=========/,/^=========/!d;/^=========/d' \
 	-e 's/^\([ 	]*\)\. = .* + SIZEOF_HEADERS;/&\n\1$(SYMBOL_PREFIX)_begin = . - SIZEOF_HEADERS;/' > $@.lds
 endef
diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in
index 18b323781..3c2add655 100644
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -718,6 +718,25 @@ config COMPAT_ATEXIT
 	  Enable this option if you want to update from 0.9.28 to git/0.9.29,
 	  else you will be missing atexit() until you rebuild all apps.
 
+config UCLIBC_HAS_UTMPX
+	bool "utmpx based support for tracking login/logouts to/from the system"
+	help
+	  Answer y to enable support for accessing user accounting database.
+	  It can be used to track all login/logout to the system.
+
+config UCLIBC_HAS_UTMP
+	bool "utmp support (XPG2 compat, SVr4 compat)"
+	depends on UCLIBC_HAS_UTMPX
+	help
+	  Answer y to enable legacy SVID support for accessing
+	  user accounting database:
+		   getutent(), getutid(), getutline(), pututline(),
+		   setutent(), endutent(), utmpname() in utmp.h
+	  It can be used to track all login/logout to the system.
+
+	  If unsure, answer N and use corresponding POSIX functions
+	  from utmpx.h
+
 config UCLIBC_SUSV2_LEGACY
 	bool "Enable SuSv2 LEGACY functions"
 	help
@@ -1043,7 +1062,7 @@ config UCLIBC_LINUX_SPECIFIC
 	help
 	  accept4(), bdflush(),
 	  capget(), capset(), eventfd(), fallocate(),
-	  fstatfs(), inotify_*(), ioperm(), iopl(),
+	  fstatfs(), getrandom(), inotify_*(), ioperm(), iopl(),
 	  madvise(), modify_ldt(), pipe2(), personality(),
 	  prctl()/arch_prctl(), pivot_root(), modify_ldt(),
 	  ppoll(), readahead(), reboot(), remap_file_pages(),
@@ -2060,14 +2079,6 @@ config UCLIBC_HAS_GNU_GLOB
 
 	  Most people will answer N.
 
-config UCLIBC_HAS_UTMPX
-       bool "utmpx based support for tracking login/logouts to/from the system"
-       help
-         Answer y to enable support for accessing user accounting database.
-         It can be used to track all login/logout to the system.
-
-         If unsure, just answer N.
-
 endmenu
 
 
diff --git a/extra/Configs/Config.in.arch b/extra/Configs/Config.in.arch
index 68e03bf9e..0dae84b06 100644
--- a/extra/Configs/Config.in.arch
+++ b/extra/Configs/Config.in.arch
@@ -191,7 +191,7 @@ config UCLIBC_HAS_FENV
 config UCLIBC_HAS_LONG_DOUBLE_MATH
 	bool "Enable long double support"
 	depends on DO_C99_MATH
-	depends on TARGET_i386 || TARGET_m68k || TARGET_sparc || TARGET_x86_64 || TARGET_powerpc || TARGET_sh || TARGET_microblaze || TARGET_xtensa
+	depends on TARGET_aarch64 || TARGET_alpha || TARGET_i386 || TARGET_ia64 || TARGET_m68k || TARGET_powerpc || TARGET_s390 || TARGET_sparc || TARGET_tile || TARGET_x86_64
 	default y
 	help
 	  If you want the uClibc math library to contain the full set of C99
diff --git a/extra/Configs/defconfigs/arc/arcv2_defconfig b/extra/Configs/defconfigs/arc/arcv2_defconfig
index d3a7dc7b2..7c4694eb1 100644
--- a/extra/Configs/defconfigs/arc/arcv2_defconfig
+++ b/extra/Configs/defconfigs/arc/arcv2_defconfig
@@ -7,7 +7,7 @@ KERNEL_HEADERS="%KERNEL_HEADERS%"
 # LDSO_CACHE_SUPPORT is not set
 LDSO_RUNPATH=y
 # LDSO_SAFE_RUNPATH is not set
-LINUXTHREADS_OLD=y
+UCLIBC_HAS_THREADS_NATIVE=y
 PTHREADS_DEBUG_SUPPORT=y
 UCLIBC_HAS_OBSTACK=y
 UCLIBC_SUSV2_LEGACY=y
diff --git a/extra/Configs/defconfigs/arc/defconfig b/extra/Configs/defconfigs/arc/defconfig
index 490bc2267..eebb11521 100644
--- a/extra/Configs/defconfigs/arc/defconfig
+++ b/extra/Configs/defconfigs/arc/defconfig
@@ -6,7 +6,7 @@ KERNEL_HEADERS="%KERNEL_HEADERS%"
 # LDSO_CACHE_SUPPORT is not set
 LDSO_RUNPATH=y
 # LDSO_SAFE_RUNPATH is not set
-LINUXTHREADS_OLD=y
+UCLIBC_HAS_THREADS_NATIVE=y
 PTHREADS_DEBUG_SUPPORT=y
 UCLIBC_HAS_OBSTACK=y
 UCLIBC_SUSV2_LEGACY=y
diff --git a/extra/scripts/gen_bits_syscall_h.sh b/extra/scripts/gen_bits_syscall_h.sh
index c44cd8fa4..bfd06b832 100755
--- a/extra/scripts/gen_bits_syscall_h.sh
+++ b/extra/scripts/gen_bits_syscall_h.sh
@@ -23,6 +23,7 @@ fi
 
 case $CC in
 *icc*) CC_SYSNUM_ARGS="-dM" ;;
+*clang*) CC_SYSNUM_ARGS="-dM" ;;
 *)     CC_SYSNUM_ARGS="-dN" ;;
 esac
 
diff --git a/include/atomic.h b/include/atomic.h
index 307704cba..3680d8714 100644
--- a/include/atomic.h
+++ b/include/atomic.h
@@ -1,5 +1,5 @@
 /* Internal macros for atomic operations for GNU C Library.
-   Copyright (C) 2002-2006, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2002-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -32,7 +32,7 @@
      the multi-thread case.  The interfaces have the prefix
      "catomic_".
 
-   - support functions like barriers.  They also have the preifx
+   - support functions like barriers.  They also have the prefix
      "atomic_".
 
    Architectures must provide a few lowlevel macros (the compare
@@ -198,8 +198,12 @@
 
 
 /* Add VALUE to *MEM and return the old value of *MEM.  */
-#ifndef atomic_exchange_and_add
-# define atomic_exchange_and_add(mem, value) \
+#ifndef atomic_exchange_and_add_acq
+# ifdef atomic_exchange_and_add
+#  define atomic_exchange_and_add_acq(mem, value) \
+  atomic_exchange_and_add (mem, value)
+# else
+#  define atomic_exchange_and_add_acq(mem, value) \
   ({ __typeof (*(mem)) __atg6_oldval;					      \
      __typeof (mem) __atg6_memp = (mem);				      \
      __typeof (*(mem)) __atg6_value = (value);				      \
@@ -213,8 +217,18 @@
 						   __atg6_oldval), 0));	      \
 									      \
      __atg6_oldval; })
+# endif
 #endif
 
+#ifndef atomic_exchange_and_add_rel
+# define atomic_exchange_and_add_rel(mem, value) \
+  atomic_exchange_and_add_acq(mem, value)
+#endif
+
+#ifndef atomic_exchange_and_add
+# define atomic_exchange_and_add(mem, value) \
+  atomic_exchange_and_add_acq(mem, value)
+#endif
 
 #ifndef catomic_exchange_and_add
 # define catomic_exchange_and_add(mem, value) \
@@ -528,6 +542,219