Update buidlroot to version 2016.08.1

bsp/buildroot/package/gdb/gdb.mk

@@ -11,16 +11,13 @@ GDB_SOURCE = gdb-$(GDB_VERSION).tar.xz
 ifeq ($(BR2_arc),y)
 GDB_SITE = $(call github,foss-for-synopsys-dwc-arc-processors,binutils-gdb,$(GDB_VERSION))
 GDB_SOURCE = gdb-$(GDB_VERSION).tar.gz
+GDB_FROM_GIT = y
 endif
 
 ifeq ($(BR2_microblaze),y)
 GDB_SITE = $(call github,Xilinx,gdb,$(GDB_VERSION))
 GDB_SOURCE = gdb-$(GDB_VERSION).tar.gz
-endif
-
-# Use .tar.bz2 for 7.7.x since there was no .tar.xz release back then
-ifneq ($(filter 7.7.%,$(GDB_VERSION)),)
-GDB_SOURCE = gdb-$(GDB_VERSION).tar.bz2
+GDB_FROM_GIT = y
 endif
 
 GDB_LICENSE = GPLv2+, LGPLv2+, GPLv3+, LGPLv3+
@@ -40,6 +37,13 @@ endif
 # also need ncurses.
 HOST_GDB_DEPENDENCIES = host-expat host-ncurses
 
+# Starting with gdb 7.10, gdb wants to re-generate its documentation.
+# We were trying to avoid that by patching the Makefiles, but it wasn't
+# working in all situations. So, we simply add a dependency on
+# host-texinfo in all case.
+GDB_DEPENDENCIES += host-texinfo
+HOST_GDB_DEPENDENCIES += host-texinfo
+
 # Apply the Xtensa specific patches
 XTENSA_CORE_NAME = $(call qstrip, $(BR2_XTENSA_CORE_NAME))
 ifneq ($(XTENSA_CORE_NAME),)
@@ -51,18 +55,10 @@ GDB_PRE_PATCH_HOOKS += GDB_XTENSA_PRE_PATCH
 HOST_GDB_PRE_PATCH_HOOKS += GDB_XTENSA_PRE_PATCH
 endif
 
-# Prevent gdb to build the documentation
-define GDB_DISABLE_DOC
-	$(SED) '/^SUBDIRS =/ s/doc//' $(@D)/gdb/Makefile.in
-	if test -e $(@D)/bfd/doc/Makefile.in ; then \
-		$(SED) 's/^INFO_DEPS =.*$$/INFO_DEPS =/' $(@D)/bfd/doc/Makefile.in ; \
-	fi
-	if test -e $(@D)/gprof/Makefile.in ; then \
-		$(SED) 's/^INFO_DEPS =.*$$/INFO_DEPS =/' $(@D)/gprof/Makefile.in ; \
-	fi
-endef
-GDB_PRE_CONFIGURE_HOOKS += GDB_DISABLE_DOC
-HOST_GDB_PRE_CONFIGURE_HOOKS += GDB_DISABLE_DOC
+ifeq ($(GDB_FROM_GIT),y)
+GDB_DEPENDENCIES += host-flex host-bison
+HOST_GDB_DEPENDENCIES += host-flex host-bison
+endif
 
 # When gdb sources are fetched from the binutils-gdb repository, they
 # also contain the binutils sources, but binutils shouldn't be built,
@@ -72,6 +68,13 @@ GDB_DISABLE_BINUTILS_CONF_OPTS = \
 	--disable-ld \
 	--disable-gas
 
+# Starting with gdb 7.11, the bundled gnulib tries to use
+# rpl_gettimeofday (gettimeofday replacement) due to the code being
+# unable to determine if the replacement function should be used or
+# not when cross-compiling with uClibc or musl as C libraries. So use
+# gl_cv_func_gettimeofday_clobber=no to not use rpl_gettimeofday,
+# assuming musl and uClibc have a properly working gettimeofday
+# implementation.
 GDB_CONF_ENV = \
 	ac_cv_type_uintptr_t=yes \
 	gt_cv_func_gettext_libintl=yes \
@@ -81,7 +84,8 @@ GDB_CONF_ENV = \
 	bash_cv_must_reinstall_sighandlers=no \
 	bash_cv_func_sigsetjmp=present \
 	bash_cv_have_mbstate_t=yes \
-	gdb_cv_func_sigsetjmp=yes
+	gdb_cv_func_sigsetjmp=yes \
+	gl_cv_func_gettimeofday_clobber=no
 
 # The shared only build is not supported by gdb, so enable static build for
 # build-in libraries with --enable-static.
@@ -120,6 +124,7 @@ endif
 
 ifeq ($(BR2_PACKAGE_XZ),y)
 GDB_CONF_OPTS += --with-lzma
+GDB_CONF_OPTS += --with-liblzma-prefix=$(STAGING_DIR)/usr
 GDB_DEPENDENCIES += xz
 else
 GDB_CONF_OPTS += --without-lzma
@@ -167,8 +172,7 @@ HOST_GDB_CONF_OPTS = \
 	--enable-threads \
 	--disable-werror \
 	--without-included-gettext \
-	$(GDB_DISABLE_BINUTILS_CONF_OPTS) \
-	--disable-sim
+	$(GDB_DISABLE_BINUTILS_CONF_OPTS)
 
 ifeq ($(BR2_PACKAGE_HOST_GDB_TUI),y)
 HOST_GDB_CONF_OPTS += --enable-tui
@@ -183,6 +187,20 @@ else
 HOST_GDB_CONF_OPTS += --without-python
 endif
 
+# workaround a bug if in-tree build is used for bfin sim
+define HOST_GDB_BFIN_SIM_WORKAROUND
+	$(RM) $(@D)/sim/common/tconfig.h
+endef
+
+ifeq ($(BR2_PACKAGE_HOST_GDB_SIM),y)
+HOST_GDB_CONF_OPTS += --enable-sim
+ifeq ($(BR2_bfin),y)
+HOST_GDB_PRE_CONFIGURE_HOOKS += HOST_GDB_BFIN_SIM_WORKAROUND
+endif
+else
+HOST_GDB_CONF_OPTS += --disable-sim
+endif
+
 # legacy $arch-linux-gdb symlink
 define HOST_GDB_ADD_SYMLINK
 	cd $(HOST_DIR)/usr/bin && \