Merge remote-tracking branch 'origin/master' into prelink

* origin/master: (32 commits)
  libubacktrace: fix backtrace support on arm-eabi, which needs libgcc_eh linked too
  getaddrinfo.c: fix incorrect check for ERANGE from gethostbyaddr_r
  getaddrinfo.c: improve code readability. No functional changes
  string: remove unused variable
  x86_64: silence warning if !TLS
  buildsys: prettify ssp.c handling
  madvise is LINUX_SPECIFIC
  test_nptl: fix expected result for tst-cputimer[123]
  test_nptl: fix expected result for tst-clock2 test
  buildsys: make $(LOCAL_INSTALL_PATH) phony
  ether_aton: reject invalid input
  tests: disable ether tests if !HAS_SOCKET
  inet: add ether_aton testcase
  sysconf: clock_getres depends on HAS_REALTIME
  __rt_sigwaitinfo: depends on HAS_REALTIME
  buildsys: minor fixes in Makefile.arch for C6X
  buildsys: minor fixes in Makefile.arch for microblaze
  libubacktrace: enabled for all archs indeed.
  sparc: don't access fp registers when configured for no fpu
  libubacktrace: generic implementation based dwarf
  ...

Conflicts:
	ldso/ldso/dl-elf.c
	ldso/ldso/mips/elfinterp.c
	ldso/ldso/x86_64/elfinterp.c

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

2 files changed, 0 insertions, 96 deletions

diff --git a/libubacktrace/sysdeps/sh/Makefile.arch b/libubacktrace/sysdeps/sh/Makefile.arch
deleted file mode 100644
index 9b0de385b..000000000
--- a/libubacktrace/sysdeps/sh/Makefile.arch
+++ /dev/null
@@ -1,12 +0,0 @@
-# Makefile for uClibc (sh/libubacktrace)
-#
-# Copyright (C) 2010 STMicroelectronics Ltd
-# Author: Carmelo Amoroso <carmelo.amoroso@st.com>
-
-# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
-#
-
-libubacktrace_ARCH_SRC-y := backtrace.c
-
-# -fexections is required for backtrace to work using dwarf2
-CFLAGS-backtrace.c := -fexceptions
diff --git a/libubacktrace/sysdeps/sh/backtrace.c b/libubacktrace/sysdeps/sh/backtrace.c
deleted file mode 100644
index 18b91b1bb..000000000
--- a/libubacktrace/sysdeps/sh/backtrace.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Perform stack unwinding by using the _Unwind_Backtrace.
- *
- * User application that wants to use backtrace needs to be
- * compiled with -fexceptions option and -rdynamic to get full
- * symbols printed.
- *
- * Copyright (C) 2009, 2010 STMicroelectronics Ltd.
- *
- * Author(s): Giuseppe Cavallaro <peppe.cavallaro@st.com>
- * - Initial implementation for glibc
- *
- * Author(s): Carmelo Amoroso <carmelo.amoroso@st.com>
- * - Reworked for uClibc
- *   - use dlsym/dlopen from libdl
- *   - rewrite initialisation to not use libc_once
- *   - make it available in static link too
- *
- * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- *
- */
-
-#include <execinfo.h>
-#include <dlfcn.h>
-#include <stdlib.h>
-#include <unwind.h>
-#include <assert.h>
-#include <stdio.h>
-
-struct trace_arg
-{
-  void **array;
-  int cnt, size;
-};
-
-static _Unwind_Reason_Code (*unwind_backtrace) (_Unwind_Trace_Fn, void *);
-static _Unwind_Ptr (*unwind_getip) (struct _Unwind_Context *);
-
-static void backtrace_init (void)
-{
-	void *handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
-
-	if (handle == NULL
-		|| ((unwind_backtrace = dlsym (handle, "_Unwind_Backtrace")) == NULL)
-		|| ((unwind_getip = dlsym (handle, "_Unwind_GetIP")) == NULL)) {
-		printf("libgcc_s.so.1 must be installed for backtrace to work\n");
-		abort();
-	}
-}
-
-static _Unwind_Reason_Code
-backtrace_helper (struct _Unwind_Context *ctx, void *a)
-{
-	struct trace_arg *arg = a;
-
-	assert (unwind_getip != NULL);
-
-	/* We are first called with address in the __backtrace function. Skip it. */
-	if (arg->cnt != -1)
-		arg->array[arg->cnt] = (void *) unwind_getip (ctx);
-	if (++arg->cnt == arg->size)
-		return _URC_END_OF_STACK;
-	return _URC_NO_REASON;
-}
-
-/*
- * Perform stack unwinding by using the _Unwind_Backtrace.
- *
- * User application that wants to use backtrace needs to be
- * compiled with -fexceptions option and -rdynamic to get full
- * symbols printed.
- */
-int backtrace (void **array, int size)
-{
-	struct trace_arg arg = { .array = array, .size = size, .cnt = -1 };
-
-	if (unwind_backtrace == NULL)
-		backtrace_init();
-
-	if (size >= 1)
-		unwind_backtrace (backtrace_helper, &arg);
-
-	return arg.cnt != -1 ? arg.cnt : 0;
-}