toolchain/arc: update to the most recent release arc-2017.09

This commit finally bumps ARC tools to the most recent arc-2017.09 release version.

ARC GNU tools of version arc-2017.09 bring some quite significant changes like:
 * Binutils v2.29 with additional ARC patches
 * GCC 7.1.1 with additional ARC patches

More information on this release could be found here:
  https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/tag/arc-2017.09-release

Signed-off-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com>
CC: Alexey Brodkin <abrodkin@synopsys.com>
CC: John Crispin <john@phrozen.org>

36 files changed, 342 insertions, 289 deletions

diff --git a/toolchain/binutils/Config.in b/toolchain/binutils/Config.in
index 25f721a6b5..56bcd162a2 100644
--- a/toolchain/binutils/Config.in
+++ b/toolchain/binutils/Config.in
@@ -3,7 +3,7 @@
 choice
 	prompt "Binutils Version" if TOOLCHAINOPTS
 	default BINUTILS_USE_VERSION_2_28 if !arc
-	default BINUTILS_USE_VERSION_2_28_ARC if arc
+	default BINUTILS_USE_VERSION_2_29_ARC if arc
 	help
 	  Select the version of binutils you wish to use.
 
@@ -17,10 +17,10 @@ choice
 		bool "Binutils 2.28"
 		select BINUTILS_VERSION_2_28
 
-	config BINUTILS_USE_VERSION_2_28_ARC
+	config BINUTILS_USE_VERSION_2_29_ARC
 		depends on arc
-		bool "ARC binutils 2.28"
-		select BINUTILS_VERSION_2_28_ARC
+		bool "ARC binutils 2.29"
+		select BINUTILS_VERSION_2_29_ARC
 
 	config BINUTILS_USE_VERSION_2_29_1
 		depends on !arc
diff --git a/toolchain/binutils/Config.version b/toolchain/binutils/Config.version
index 54df1730c7..159a25f10f 100644
--- a/toolchain/binutils/Config.version
+++ b/toolchain/binutils/Config.version
@@ -5,7 +5,7 @@ config BINUTILS_VERSION_2_28
 	default y if (!TOOLCHAINOPTS && !arc)
 	bool
 
-config BINUTILS_VERSION_2_28_ARC
+config BINUTILS_VERSION_2_29_ARC
 	default y if (!TOOLCHAINOPTS && arc)
 	bool
 
@@ -17,4 +17,4 @@ config BINUTILS_VERSION
 	default "2.27"		       if BINUTILS_VERSION_2_27
 	default "2.28"		       if BINUTILS_VERSION_2_28
 	default "2.29.1"	       if BINUTILS_VERSION_2_29_1
-	default "arc-2017.03"          if BINUTILS_VERSION_2_28_ARC
+	default "arc-2017.09"          if BINUTILS_VERSION_2_29_ARC
diff --git a/toolchain/binutils/Makefile b/toolchain/binutils/Makefile
index fd4af5c25c..c46d29933d 100644
--- a/toolchain/binutils/Makefile
+++ b/toolchain/binutils/Makefile
@@ -25,11 +25,11 @@ ifeq ($(PKG_VERSION),2.29.1)
   PKG_HASH:=1509dff41369fb70aed23682351b663b56db894034773e6dbf7d5d6071fc55cc
 endif
 
-ifneq ($(CONFIG_BINUTILS_VERSION_2_28_ARC),)
-  PKG_REV:=arc-2017.03-release
+ifneq ($(CONFIG_BINUTILS_VERSION_2_29_ARC),)
+  PKG_REV:=arc-2017.09-release
   PKG_SOURCE_URL:=https://github.com/foss-for-synopsys-dwc-arc-processors/binutils-gdb/archive/$(PKG_REV)/
   PKG_SOURCE:=$(PKG_NAME)-$(PKG_REV).tar.gz
-  PKG_HASH:=f9c1e09ef10aaf9619181f49587f464ba0a70d29b7f6f879047140acac852409
+  PKG_HASH:=2ea086fd5521e942926dd6ff6922ce31c29ee7ffc754fca3d06385e0f27600f8
   BINUTILS_DIR:=$(PKG_NAME)-gdb-$(PKG_REV)
   HOST_BUILD_DIR:=$(BUILD_DIR_TOOLCHAIN)/$(BINUTILS_DIR)
 endif
diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
index a54c8d12d3..06e9f487b9 100644
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@@ -2,14 +2,14 @@
 
 choice
 	prompt "GCC compiler Version" if TOOLCHAINOPTS
-	default GCC_USE_VERSION_6_3_ARC if arc
+	default GCC_USE_VERSION_7_1_ARC if arc
 	default GCC_USE_VERSION_5
 	help
 	  Select the version of gcc you wish to use.
 
-	config GCC_USE_VERSION_6_3_ARC
-		select GCC_VERSION_6_3_ARC
-		bool "gcc 6.3.x with support of ARC cores"
+	config GCC_USE_VERSION_7_1_ARC
+		select GCC_VERSION_7_1_ARC
+		bool "gcc 7.1.x with support of ARC cores"
 		depends on arc
 
 	config GCC_USE_VERSION_5
diff --git a/toolchain/gcc/Config.version b/toolchain/gcc/Config.version
index 4edf8a87a9..ee0f3f10c3 100644
--- a/toolchain/gcc/Config.version
+++ b/toolchain/gcc/Config.version
@@ -1,14 +1,14 @@
-config GCC_VERSION_6_3_ARC
+config GCC_VERSION_7_1_ARC
 	default y if (!TOOLCHAINOPTS && arc)
 	bool
 
 config GCC_VERSION
 	string
-	default "arc-2017.03-release"   if GCC_VERSION_6_3_ARC
+	default "arc-2017.09-release"   if GCC_VERSION_7_1_ARC
 	default "6.3.0"         if GCC_USE_VERSION_6
 	default "7.2.0"         if GCC_USE_VERSION_7
 	default "5.5.0"
 
-config GCC_VERSION_6_3
+config GCC_VERSION_7_1
 	bool
-	default y	if GCC_VERSION_6_3_ARC
+	default y	if GCC_VERSION_7_1_ARC
diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk
index 69214aca03..7c4e773a0f 100644
--- a/toolchain/gcc/common.mk
+++ b/toolchain/gcc/common.mk
@@ -41,12 +41,12 @@ ifeq ($(PKG_VERSION),7.2.0)
   PKG_HASH:=1cf7adf8ff4b5aa49041c8734bbcf1ad18cc4c94d0029aae0f4e48841088479a
 endif
 
-ifneq ($(CONFIG_GCC_VERSION_6_3_ARC),)
-    PKG_VERSION:=6.3.0
+ifneq ($(CONFIG_GCC_VERSION_7_1_ARC),)
+    PKG_VERSION:=7.1.1
     PKG_SOURCE_URL:=https://github.com/foss-for-synopsys-dwc-arc-processors/gcc/archive/$(GCC_VERSION)
     PKG_SOURCE:=$(PKG_NAME)-$(GCC_VERSION).tar.gz
-    PKG_HASH:=b7223e134199b1a6f71de629da6aa845790e55d28e9892143dde09b1bc878110
-    PKG_REV:=2017.03-release
+    PKG_HASH:=90596af8b9c26a434cec0a3b3d37d0c7c755ab6a65496af6ca32529fab5a6cfe
+    PKG_REV:=2017.09-release
     GCC_DIR:=gcc-arc-$(PKG_REV)
     HOST_BUILD_DIR = $(BUILD_DIR_HOST)/$(PKG_NAME)-$(GCC_VERSION)
 endif
diff --git a/toolchain/gcc/patches/arc-2017.03-release/230-musl_libssp.patch b/toolchain/gcc/patches/arc-2017.03-release/230-musl_libssp.patch
deleted file mode 100644
index 8dfd1fc287..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/230-musl_libssp.patch
+++ /dev/null
@@ -1,13 +0,0 @@
---- a/gcc/gcc.c
-+++ b/gcc/gcc.c
-@@ -858,7 +858,9 @@ proper position among the other output f
- #endif
- 
- #ifndef LINK_SSP_SPEC
--#ifdef TARGET_LIBC_PROVIDES_SSP
-+#if DEFAULT_LIBC == LIBC_MUSL
-+#define LINK_SSP_SPEC "-lssp_nonshared"
-+#elif defined(TARGET_LIBC_PROVIDES_SSP)
- #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
- 		       "|fstack-protector-strong|fstack-protector-explicit:}"
- #else
diff --git a/toolchain/gcc/patches/arc-2017.03-release/280-musl-disable-ifunc-by-default.patch b/toolchain/gcc/patches/arc-2017.03-release/280-musl-disable-ifunc-by-default.patch
deleted file mode 100644
index df09e4f636..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/280-musl-disable-ifunc-by-default.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-From 450fb05e2a7510d37744f044009f8237d902f65c Mon Sep 17 00:00:00 2001
-From: nsz <nsz@138bc75d-0d04-0410-961f-82ee72b054a4>
-Date: Tue, 30 Aug 2016 10:26:22 +0000
-Subject: [PATCH] disable ifunc on *-musl by default
-
-gcc/
-	* config.gcc (*-*-*musl*): Disable gnu-indirect-function.
-
-
-
-git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239859 138bc75d-0d04-0410-961f-82ee72b054a4
----
- gcc/ChangeLog  | 4 ++++
- gcc/config.gcc | 4 ++--
- 2 files changed, 6 insertions(+), 2 deletions(-)
-
---- a/gcc/config.gcc
-+++ b/gcc/config.gcc
-@@ -1495,7 +1495,7 @@ i[34567]86-*-linux* | i[34567]86-*-kfree
- 		extra_options="${extra_options} linux-android.opt"
- 		# Assume modern glibc if not targeting Android nor uclibc.
- 		case ${target} in
--		*-*-*android*|*-*-*uclibc*)
-+		*-*-*android*|*-*-*uclibc*|*-*-*musl*)
- 		  ;;
- 		*)
- 		  default_gnu_indirect_function=yes
-@@ -1564,7 +1564,7 @@ x86_64-*-linux* | x86_64-*-kfreebsd*-gnu
- 		extra_options="${extra_options} linux-android.opt"
- 		# Assume modern glibc if not targeting Android nor uclibc.
- 		case ${target} in
--		*-*-*android*|*-*-*uclibc*)
-+		*-*-*android*|*-*-*uclibc*|*-*-*musl*)
- 		  ;;
- 		*)
- 		  default_gnu_indirect_function=yes
diff --git a/toolchain/gcc/patches/arc-2017.03-release/300-mips_Os_cpu_rtx_cost_model.patch b/toolchain/gcc/patches/arc-2017.03-release/300-mips_Os_cpu_rtx_cost_model.patch
deleted file mode 100644
index d76bd8cb1d..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/300-mips_Os_cpu_rtx_cost_model.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/gcc/config/mips/mips.c
-+++ b/gcc/config/mips/mips.c
-@@ -17928,7 +17928,7 @@ mips_option_override (void)
-     flag_pcc_struct_return = 0;
- 
-   /* Decide which rtx_costs structure to use.  */
--  if (optimize_size)
-+  if (0 && optimize_size)
-     mips_cost = &mips_rtx_cost_optimize_size;
-   else
-     mips_cost = &mips_rtx_cost_data[mips_tune];
diff --git a/toolchain/gcc/patches/arc-2017.03-release/800-arm_v5te_no_ldrd_strd.patch b/toolchain/gcc/patches/arc-2017.03-release/800-arm_v5te_no_ldrd_strd.patch
deleted file mode 100644
index 2e7c23f851..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/800-arm_v5te_no_ldrd_strd.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/gcc/config/arm/arm.h
-+++ b/gcc/config/arm/arm.h
-@@ -166,7 +166,7 @@ extern void (*arm_lang_output_object_att
- /* Thumb-1 only.  */
- #define TARGET_THUMB1_ONLY		(TARGET_THUMB1 && !arm_arch_notm)
- 
--#define TARGET_LDRD			(arm_arch5e && ARM_DOUBLEWORD_ALIGN \
-+#define TARGET_LDRD			(arm_arch6 && ARM_DOUBLEWORD_ALIGN \
-                                          && !TARGET_THUMB1)
- 
- #define TARGET_CRC32			(arm_arch_crc)
diff --git a/toolchain/gcc/patches/arc-2017.03-release/830-arm_unbreak_armv4t.patch b/toolchain/gcc/patches/arc-2017.03-release/830-arm_unbreak_armv4t.patch
deleted file mode 100644
index 37f8f2a54d..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/830-arm_unbreak_armv4t.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-http://sourceware.org/ml/crossgcc/2008-05/msg00009.html
-
---- a/gcc/config/arm/linux-eabi.h
-+++ b/gcc/config/arm/linux-eabi.h
-@@ -45,7 +45,7 @@
-    The ARM10TDMI core is the default for armv5t, so set
-    SUBTARGET_CPU_DEFAULT to achieve this.  */
- #undef  SUBTARGET_CPU_DEFAULT
--#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
-+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi
- 
- /* TARGET_BIG_ENDIAN_DEFAULT is set in
-    config.gcc for big endian configurations.  */
diff --git a/toolchain/gcc/patches/arc-2017.03-release/870-ppc_no_crtsavres.patch b/toolchain/gcc/patches/arc-2017.03-release/870-ppc_no_crtsavres.patch
deleted file mode 100644
index 9e543a0fc2..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/870-ppc_no_crtsavres.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/gcc/config/rs6000/rs6000.c
-+++ b/gcc/config/rs6000/rs6000.c
-@@ -24171,7 +24171,7 @@ rs6000_savres_strategy (rs6000_stack_t *
-   /* Define cutoff for using out-of-line functions to save registers.  */
-   if (DEFAULT_ABI == ABI_V4 || TARGET_ELF)
-     {
--      if (!optimize_size)
-+      if (1)
- 	{
- 	  strategy |= SAVE_INLINE_FPRS | REST_INLINE_FPRS;
- 	  strategy |= SAVE_INLINE_GPRS | REST_INLINE_GPRS;
diff --git a/toolchain/gcc/patches/arc-2017.03-release/880-no_java_section.patch b/toolchain/gcc/patches/arc-2017.03-release/880-no_java_section.patch
deleted file mode 100644
index 0fa9e627c2..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/880-no_java_section.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/gcc/defaults.h
-+++ b/gcc/defaults.h
-@@ -395,7 +395,7 @@ see the files COPYING3 and COPYING.RUNTI
- /* If we have named section and we support weak symbols, then use the
-    .jcr section for recording java classes which need to be registered
-    at program start-up time.  */
--#if defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK
-+#if 0 && defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK
- #ifndef JCR_SECTION_NAME
- #define JCR_SECTION_NAME ".jcr"
- #endif
diff --git a/toolchain/gcc/patches/arc-2017.03-release/881-no_tm_section.patch b/toolchain/gcc/patches/arc-2017.03-release/881-no_tm_section.patch
deleted file mode 100644
index fab5db3be5..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/881-no_tm_section.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/libgcc/crtstuff.c
-+++ b/libgcc/crtstuff.c
-@@ -152,7 +152,7 @@ call_ ## FUNC (void)					\
- #endif
- 
- #if !defined(USE_TM_CLONE_REGISTRY) && defined(OBJECT_FORMAT_ELF)
--# define USE_TM_CLONE_REGISTRY 1
-+# define USE_TM_CLONE_REGISTRY 0
- #endif
- 
- /* We do not want to add the weak attribute to the declarations of these
diff --git a/toolchain/gcc/patches/arc-2017.03-release/900-bad-mips16-crt.patch b/toolchain/gcc/patches/arc-2017.03-release/900-bad-mips16-crt.patch
deleted file mode 100644
index dd6e9dc889..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/900-bad-mips16-crt.patch
+++ /dev/null
@@ -1,9 +0,0 @@
---- a/libgcc/config/mips/t-mips16
-+++ b/libgcc/config/mips/t-mips16
-@@ -43,3 +43,6 @@ SYNC_CFLAGS = -mno-mips16
- 
- # Version these symbols if building libgcc.so.
- SHLIB_MAPFILES += $(srcdir)/config/mips/libgcc-mips16.ver
-+
-+CRTSTUFF_T_CFLAGS += -mno-mips16
-+CRTSTUFF_T_CFLAGS_S += -mno-mips16
diff --git a/toolchain/gcc/patches/arc-2017.03-release/940-no-clobber-stamp-bits.patch b/toolchain/gcc/patches/arc-2017.03-release/940-no-clobber-stamp-bits.patch
deleted file mode 100644
index 68e62865b1..0000000000
--- a/toolchain/gcc/patches/arc-2017.03-release/940-no-clobber-stamp-bits.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/libstdc++-v3/include/Makefile.in
-+++ b/libstdc++-v3/include/Makefile.in
-@@ -1459,7 +1459,7 @@ stamp-bits: ${bits_headers}
- 	@$(STAMP) stamp-bits
- 
- stamp-bits-sup: stamp-bits ${bits_sup_headers}
--	@-cd ${bits_builddir} && $(LN_S) $? . 2>/dev/null
-+	@-cd ${bits_builddir} && $(LN_S) $(filter-out stamp-bits,$?) . 2>/dev/null
- 	@$(STAMP) stamp-bits-sup
- 
- stamp-c_base: ${c_base_headers}
diff --git a/toolchain/gcc/patches/arc-2017.03-release/001-revert_register_mode_search.patch b/toolchain/gcc/patches/arc-2017.09-release/001-revert_register_mode_search.patch
index bd6fbdb4a9..63e3fee003 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/001-revert_register_mode_search.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/001-revert_register_mode_search.patch
@@ -1,3 +1,15 @@
+commit 31285a20390a5e53a74a2a71d1b5c82f366ddd5a
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Tue May 6 11:49:05 2014 +0000
+
+    gcc: revert an upstream patch that is causing a regression on powerpc
+    
+    https://forum.openwrt.org/viewtopic.php?pid=232494#p232494
+    
+    Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+    
+    SVN-Revision: 40709
+
 Revert of:
 
 commit 275035b56823b26d5fb7e90fad945b998648edf2
@@ -14,7 +26,7 @@ Date:   Thu Sep 5 14:09:07 2013 +0000
 
 --- a/gcc/reginfo.c
 +++ b/gcc/reginfo.c
-@@ -625,35 +625,40 @@ choose_hard_reg_mode (unsigned int regno
+@@ -637,35 +637,40 @@ choose_hard_reg_mode (unsigned int regno
         mode = GET_MODE_WIDER_MODE (mode))
      if ((unsigned) hard_regno_nregs[regno][mode] == nregs
  	&& HARD_REGNO_MODE_OK (regno, mode)
diff --git a/toolchain/gcc/patches/arc-2017.03-release/002-case_insensitive.patch b/toolchain/gcc/patches/arc-2017.09-release/002-case_insensitive.patch
index b3d2dbe291..3442076d7d 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/002-case_insensitive.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/002-case_insensitive.patch
@@ -1,3 +1,13 @@
+commit 81cc26c706b2bc8c8c1eb1a322e5c5157900836e
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Sun Oct 19 21:45:51 2014 +0000
+
+    gcc: do not assume that the Mac OS X filesystem is case insensitive
+    
+    Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+    
+    SVN-Revision: 42973
+
 --- a/include/filenames.h
 +++ b/include/filenames.h
 @@ -43,11 +43,6 @@ extern "C" {
diff --git a/toolchain/gcc/patches/arc-2017.03-release/010-documentation.patch b/toolchain/gcc/patches/arc-2017.09-release/010-documentation.patch
index 2adb28c83d..0106814f41 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/010-documentation.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/010-documentation.patch
@@ -1,6 +1,18 @@
+commit 098bd91f5eae625c7d2ee621e10930fc4434e5e2
+Author: Luka Perkov <luka@openwrt.org>
+Date:   Tue Feb 26 16:16:33 2013 +0000
+
+    gcc: don't build documentation
+    
+    This closes #13039.
+    
+    Signed-off-by: Luka Perkov <luka@openwrt.org>
+    
+    SVN-Revision: 35807
+
 --- a/gcc/Makefile.in
 +++ b/gcc/Makefile.in
-@@ -3021,18 +3021,10 @@ doc/gcc.info: $(TEXI_GCC_FILES)
+@@ -3121,18 +3121,10 @@ doc/gcc.info: $(TEXI_GCC_FILES)
  doc/gccint.info: $(TEXI_GCCINT_FILES)
  doc/cppinternals.info: $(TEXI_CPPINT_FILES)
  
diff --git a/toolchain/gcc/patches/arc-2017.09-release/230-musl_libssp.patch b/toolchain/gcc/patches/arc-2017.09-release/230-musl_libssp.patch
new file mode 100644
index 0000000000..eebee9175c
--- /dev/null
+++ b/toolchain/gcc/patches/arc-2017.09-release/230-musl_libssp.patch
@@ -0,0 +1,28 @@
+commit 1877bc9d8f2be143fbe530347a945850d0ecd234
+Author: Steven Barth <cyrus@openwrt.org>
+Date:   Mon Jun 22 10:31:07 2015 +0000
+
+    gcc/musl: rework SSP-support
+    
+    Make musl provide libssp_nonshared.a and make GCC link it unconditionally
+    if musl is used. This should be a no-op if SSP is disabled and seems to be
+    the only reliable way of dealing with SSP over all packages due to the mess
+    that is linkerflags handling in packages.
+    
+    Signed-off-by: Steven Barth <steven@midlink.org>
+    
+    SVN-Revision: 46108
+
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -861,7 +861,9 @@ proper position among the other output f
+ #endif
+ 
+ #ifndef LINK_SSP_SPEC
+-#ifdef TARGET_LIBC_PROVIDES_SSP
++#if DEFAULT_LIBC == LIBC_MUSL
++#define LINK_SSP_SPEC "-lssp_nonshared"
++#elif defined(TARGET_LIBC_PROVIDES_SSP)
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+ 		       "|fstack-protector-strong|fstack-protector-explicit:}"
+ #else
diff --git a/toolchain/gcc/patches/arc-2017.09-release/300-mips_Os_cpu_rtx_cost_model.patch b/toolchain/gcc/patches/arc-2017.09-release/300-mips_Os_cpu_rtx_cost_model.patch
new file mode 100644
index 0000000000..84c0fdab66
--- /dev/null
+++ b/toolchain/gcc/patches/arc-2017.09-release/300-mips_Os_cpu_rtx_cost_model.patch
@@ -0,0 +1,21 @@
+commit ecf7671b769fe96f7b5134be442089f8bdba55d2
+Author: Felix Fietkau <nbd@nbd.name>
+Date:   Thu Aug 4 20:29:45 2016 +0200
+
+gcc: add a patch to generate better code with Os on mips
+
+Also happens to reduce compressed code size a bit
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+
+--- a/gcc/config/mips/mips.c
++++ b/gcc/config/mips/mips.c
+@@ -19784,7 +19784,7 @@ mips_option_override (void)
+     flag_pcc_struct_return = 0;
+ 
+   /* Decide which rtx_costs structure to use.  */
+-  if (optimize_size)
++  if (0 && optimize_size)
+     mips_cost = &mips_rtx_cost_optimize_size;
+   else
+     mips_cost = &mips_rtx_cost_data[mips_tune];
diff --git a/toolchain/gcc/patches/arc-2017.09-release/800-arm_v5te_no_ldrd_strd.patch b/toolchain/gcc/patches/arc-2017.09-release/800-arm_v5te_no_ldrd_strd.patch
new file mode 100644
index 0000000000..76200a1661
--- /dev/null
+++ b/toolchain/gcc/patches/arc-2017.09-release/800-arm_v5te_no_ldrd_strd.patch
@@ -0,0 +1,32 @@
+commit b050f87d13b5dc7ed82feb9a90f4529de58bdf25
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Wed Feb 19 19:20:10 2014 +0000
+
+    gcc: prevent the use of LDRD/STRD on ARMv5TE
+    
+    These instructions are for 64-bit load/store. On ARMv5TE, the CPU
+    requires addresses to be aligned to 64-bit. When misaligned, behavior is
+    undefined (effectively either loads the same word twice on LDRD, or
+    corrupts surrounding memory on STRD).
+    
+    On ARMv6 and newer, unaligned access is safe.
+    
+    Removing these instructions for ARMv5TE is necessary, because GCC
+    ignores alignment information in pointers and does unsafe optimizations
+    that have shown up as bugs in various places.
+    
+    Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+    
+    SVN-Revision: 39638
+
+--- a/gcc/config/arm/arm.h
++++ b/gcc/config/arm/arm.h
+@@ -150,7 +150,7 @@ extern tree arm_fp16_type_node;
+ /* Thumb-1 only.  */
+ #define TARGET_THUMB1_ONLY		(TARGET_THUMB1 && !arm_arch_notm)
+ 
+-#define TARGET_LDRD			(arm_arch5e && ARM_DOUBLEWORD_ALIGN \
++#define TARGET_LDRD			(arm_arch6 && ARM_DOUBLEWORD_ALIGN \
+                                          && !TARGET_THUMB1)
+ 
+ #define TARGET_CRC32			(arm_arch_crc)
diff --git a/toolchain/gcc/patches/arc-2017.03-release/810-arm-softfloat-libgcc.patch b/toolchain/gcc/patches/arc-2017.09-release/810-arm-softfloat-libgcc.patch
index 1d06f5b2ec..5c9d86aead 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/810-arm-softfloat-libgcc.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/810-arm-softfloat-libgcc.patch
@@ -1,3 +1,11 @@
+commit 8570c4be394cff7282f332f97da2ff569a927ddb
+Author: Imre Kaloz <kaloz@openwrt.org>
+Date:   Wed Feb 2 20:06:12 2011 +0000
+
+    fixup arm soft-float symbols
+    
+    SVN-Revision: 25325
+
 --- a/libgcc/config/arm/t-linux
 +++ b/libgcc/config/arm/t-linux
 @@ -1,6 +1,10 @@
@@ -14,7 +22,7 @@
  # difference.
 --- a/gcc/config/arm/linux-elf.h
 +++ b/gcc/config/arm/linux-elf.h
-@@ -60,8 +60,6 @@
+@@ -58,8 +58,6 @@
     %{shared:-lc} \
     %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
  
diff --git a/toolchain/gcc/patches/arc-2017.03-release/820-libgcc_pic.patch b/toolchain/gcc/patches/arc-2017.09-release/820-libgcc_pic.patch
index f925d96f66..0cc1e07e2b 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/820-libgcc_pic.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/820-libgcc_pic.patch
@@ -1,6 +1,14 @@
+commit c96312958c0621e72c9b32da5bc224ffe2161384
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Mon Oct 19 23:26:09 2009 +0000
+
+    gcc: create a proper libgcc_pic.a static library for relinking (4.3.3+ for now, backport will follow)
+    
+    SVN-Revision: 18086
+
 --- a/libgcc/Makefile.in
 +++ b/libgcc/Makefile.in
-@@ -888,11 +888,12 @@ $(libgcov-driver-objects): %$(objext): $
+@@ -920,11 +920,12 @@ $(libgcov-driver-objects): %$(objext): $
  
  # Static libraries.
  libgcc.a: $(libgcc-objects)
@@ -14,7 +22,7 @@
  	-rm -f $@
  
  	objects="$(objects)";					\
-@@ -913,7 +914,7 @@ all: libunwind.a
+@@ -945,7 +946,7 @@ all: libunwind.a
  endif
  
  ifeq ($(enable_shared),yes)
@@ -23,7 +31,7 @@
  ifneq ($(LIBUNWIND),)
  all: libunwind$(SHLIB_EXT)
  libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)
-@@ -1115,6 +1116,10 @@ install-shared:
+@@ -1151,6 +1152,10 @@ install-shared:
  	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
  	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
  
diff --git a/toolchain/gcc/patches/arc-2017.03-release/840-armv4_pass_fix-v4bx_to_ld.patch b/toolchain/gcc/patches/arc-2017.09-release/840-armv4_pass_fix-v4bx_to_ld.patch
index cb1fb98235..b9c9b161ad 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/840-armv4_pass_fix-v4bx_to_ld.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/840-armv4_pass_fix-v4bx_to_ld.patch
@@ -1,6 +1,15 @@
+commit 7edc8ca5456d9743dd0075eb3cc5b04f4f24c8cc
+Author: Imre Kaloz <kaloz@openwrt.org>
+Date:   Wed Feb 2 19:34:36 2011 +0000
+
+    add armv4 fixup patches
+    
+    SVN-Revision: 25322
+
+
 --- a/gcc/config/arm/linux-eabi.h
 +++ b/gcc/config/arm/linux-eabi.h
-@@ -94,10 +94,15 @@
+@@ -88,10 +88,15 @@
  #define MUSL_DYNAMIC_LINKER \
    "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
  
diff --git a/toolchain/gcc/patches/arc-2017.03-release/850-use_shared_libgcc.patch b/toolchain/gcc/patches/arc-2017.09-release/850-use_shared_libgcc.patch
index cd20244c69..1d07efed80 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/850-use_shared_libgcc.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/850-use_shared_libgcc.patch
@@ -1,6 +1,13 @@
+commit dcfc40358b5a3cae7320c17f8d1cebd5ad5540cd
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Sun Feb 12 20:25:47 2012 +0000
+
+    gcc 4.6: port over the missing patch 850-use_shared_libgcc.patch to prevent libgcc crap from leaking into every single binary
+    
+    SVN-Revision: 30486
 --- a/gcc/config/arm/linux-eabi.h
 +++ b/gcc/config/arm/linux-eabi.h
-@@ -132,10 +132,6 @@
+@@ -126,10 +126,6 @@
    "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} "	\
    LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
  
@@ -26,7 +33,7 @@
     -muclibc or -mglibc or -mbionic or -mmusl has been passed to change
 --- a/libgcc/mkmap-symver.awk
 +++ b/libgcc/mkmap-symver.awk
-@@ -132,5 +132,5 @@ function output(lib) {
+@@ -136,5 +136,5 @@ function output(lib) {
    else if (inherit[lib])
      printf("} %s;\n", inherit[lib]);
    else
diff --git a/toolchain/gcc/patches/arc-2017.03-release/851-libgcc_no_compat.patch b/toolchain/gcc/patches/arc-2017.09-release/851-libgcc_no_compat.patch
index 80c3476841..d710e40717 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/851-libgcc_no_compat.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/851-libgcc_no_compat.patch
@@ -1,3 +1,13 @@
+commit 64661de100da1ec1061ef3e5e400285dce115e6b
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Sun May 10 13:16:35 2015 +0000
+
+    gcc: add some size optimization patches
+    
+    Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+    
+    SVN-Revision: 45664
+
 --- a/libgcc/config/t-libunwind
 +++ b/libgcc/config/t-libunwind
 @@ -2,8 +2,7 @@
diff --git a/toolchain/gcc/patches/arc-2017.09-release/870-ppc_no_crtsavres.patch b/toolchain/gcc/patches/arc-2017.09-release/870-ppc_no_crtsavres.patch
new file mode 100644
index 0000000000..156468b45e
--- /dev/null
+++ b/toolchain/gcc/patches/arc-2017.09-release/870-ppc_no_crtsavres.patch
@@ -0,0 +1,18 @@
+commit d8c570a1531035c3e26bcd94741e5f5b9c36b5d9
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Mon Mar 5 00:51:01 2012 +0000
+
+    gcc: do not emit references to _savegpr_* and _restgpr_* on powerpc, as they are tricky to deal with wrt. libgcc. they cannot be linked dynamically
+    
+    SVN-Revision: 30814
+--- a/gcc/config/rs6000/rs6000.c
++++ b/gcc/config/rs6000/rs6000.c
+@@ -26936,7 +26936,7 @@ rs6000_savres_strategy (rs6000_stack_t *
+   /* Define cutoff for using out-of-line functions to save registers.  */
+   if (DEFAULT_ABI == ABI_V4 || TARGET_ELF)
+     {
+-      if (!optimize_size)
++      if (1)
+ 	{
+ 	  strategy |= SAVE_INLINE_FPRS | REST_INLINE_FPRS;
+ 	  strategy |= SAVE_INLINE_GPRS | REST_INLINE_GPRS;
diff --git a/toolchain/gcc/patches/arc-2017.09-release/881-no_tm_section.patch b/toolchain/gcc/patches/arc-2017.09-release/881-no_tm_section.patch
new file mode 100644
index 0000000000..a58dc27e64
--- /dev/null
+++ b/toolchain/gcc/patches/arc-2017.09-release/881-no_tm_section.patch
@@ -0,0 +1,22 @@
+commit 565988ab47bd9b96b50608564aee2104aeb4b7ae
+Author: Felix Fietkau <nbd@nbd.name>
+Date:   Tue Dec 13 14:20:49 2016 +0100
+
+    gcc: rip out transactional memory related bloat from crtbegin
+    
+    Slightly improves compression for each executable, saving about 4k from
+    the default ar71xx rootfs
+    
+    Signed-off-by: Felix Fietkau <nbd@nbd.name>
+
+--- a/libgcc/crtstuff.c
++++ b/libgcc/crtstuff.c
+@@ -152,7 +152,7 @@ call_ ## FUNC (void)					\
+ #endif
+ 
+ #if !defined(USE_TM_CLONE_REGISTRY) && defined(OBJECT_FORMAT_ELF)
+-# define USE_TM_CLONE_REGISTRY 1
++# define USE_TM_CLONE_REGISTRY 0
+ #endif
+ 
+ /* We do not want to add the weak attribute to the declarations of these
diff --git a/toolchain/gcc/patches/arc-2017.09-release/900-bad-mips16-crt.patch b/toolchain/gcc/patches/arc-2017.09-release/900-bad-mips16-crt.patch
new file mode 100644
index 0000000000..f5cc0a74ee
--- /dev/null
+++ b/toolchain/gcc/patches/arc-2017.09-release/900-bad-mips16-crt.patch
@@ -0,0 +1,30 @@
+commit 9dc38e48f7a6f88b7ac7bfaced91f53660204e46
+Author: Florian Fainelli <florian@openwrt.org>
+Date:   Fri Apr 5 12:36:06 2013 +0000
+
+    toolchain/gcc: .init and .fini need to pick one ISA
+    
+    The .init and .fini sections are built by concatenating code
+    fragments. Putting mips16 code in the middle of a mips32 code block
+    doesn't work. Make gcc built the magic crt stuff in no-mips16 mode.
+    
+    This is specific to 4.6-linaro but is probably portable to other gcc
+    flavors. Adding this to the t-libgcc-mips16 makefile fragment is a
+    hack not suitable for pushing upstream, but there is no mips/t-linux
+    or mips/t-uclibc and I am not going to touch gcc/configure for two
+    lines.
+    
+    Signed-off-by: Jay Carlson <nop@nop.com>
+    Signed-off-by: Florian Fainelli <florian@openwrt.org>
+    
+    SVN-Revision: 36200
+
+--- a/libgcc/config/mips/t-mips16
++++ b/libgcc/config/mips/t-mips16
+@@ -43,3 +43,6 @@ SYNC_CFLAGS = -mno-mips16
+ 
+ # Version these symbols if building libgcc.so.
+ SHLIB_MAPFILES += $(srcdir)/config/mips/libgcc-mips16.ver
++
++CRTSTUFF_T_CFLAGS += -mno-mips16
++CRTSTUFF_T_CFLAGS_S += -mno-mips16
diff --git a/toolchain/gcc/patches/arc-2017.03-release/910-mbsd_multi.patch b/toolchain/gcc/patches/arc-2017.09-release/910-mbsd_multi.patch
index 62203dfcf6..286cfadae7 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/910-mbsd_multi.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/910-mbsd_multi.patch
@@ -1,22 +1,23 @@
+commit 99368862e44740ff4fd33760893f04e14f9dbdf1
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Tue Jul 31 00:52:27 2007 +0000
 
-	This patch brings over a few features from MirBSD:
+    Port the mbsd_multi patch from freewrt, which adds -fhonour-copts. This will emit warnings in packages that don't use our target cflags properly
+    
+    SVN-Revision: 8256
+
+	This patch brings over a feature from MirBSD:
 	* -fhonour-copts
 	  If this option is not given, it's warned (depending
 	  on environment variables). This is to catch errors
 	  of misbuilt packages which override CFLAGS themselves.
-	* -Werror-maybe-reset
-	  Has the effect of -Wno-error if GCC_NO_WERROR is
-	  set and not '0', a no-operation otherwise. This is
-	  to be able to use -Werror in "make" but prevent
-	  GNU autoconf generated configure scripts from
-	  freaking out.
 
 	This patch was authored by Thorsten Glaser <tg at mirbsd.de>
 	with copyright assignment to the FSF in effect.
 
 --- a/gcc/c-family/c-opts.c
 +++ b/gcc/c-family/c-opts.c
-@@ -107,6 +107,9 @@ static int class_dump_flags;
+@@ -108,6 +108,9 @@ static int class_dump_flags;
  /* Whether any standard preincluded header has been preincluded.  */
  static bool done_preinclude;
  
@@ -26,7 +27,7 @@
  static void handle_OPT_d (const char *);
  static void set_std_cxx98 (int);
  static void set_std_cxx11 (int);
-@@ -442,6 +445,12 @@ c_common_handle_option (size_t scode, co
+@@ -456,6 +459,12 @@ c_common_handle_option (size_t scode, co
        flag_no_builtin = !value;
        break;
  
@@ -39,7 +40,7 @@
      case OPT_fconstant_string_class_:
        constant_string_class_name = arg;
        break;
-@@ -1041,6 +1050,47 @@ c_common_init (void)
+@@ -1084,6 +1093,47 @@ c_common_init (void)
        return false;
      }
  
@@ -89,18 +90,7 @@
  
 --- a/gcc/c-family/c.opt
 +++ b/gcc/c-family/c.opt
-@@ -438,6 +438,10 @@ Wfloat-conversion
- C ObjC C++ ObjC++ Var(warn_float_conversion) Warning LangEnabledBy(C ObjC C++ ObjC++,Wconversion)
- Warn for implicit type conversions that cause loss of floating point precision.
- 
-+Werror-maybe-reset
-+C ObjC C++ ObjC++
-+; Documented in common.opt
-+
- Wfloat-equal
- C ObjC C++ ObjC++ Var(warn_float_equal) Warning
- Warn if testing floating point numbers for equality.
-@@ -1252,6 +1256,9 @@ C++ ObjC++ Optimization Alias(fexception
+@@ -1412,6 +1412,9 @@ C++ ObjC++ Optimization Alias(fexception
  fhonor-std
  C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
  
@@ -112,18 +102,7 @@
  Assume normal C execution environment.
 --- a/gcc/common.opt
 +++ b/gcc/common.opt
-@@ -581,6 +581,10 @@ Werror=
- Common Joined
- Treat specified warning as error.
- 
-+Werror-maybe-reset
-+Common
-+If environment variable GCC_NO_WERROR is set, act as -Wno-error
-+
- Wextra
- Common Var(extra_warnings) Warning
- Print extra (possibly unwanted) warnings.
-@@ -1432,6 +1436,9 @@ fguess-branch-probability
+@@ -1510,6 +1510,9 @@ fguess-branch-probability
  Common Report Var(flag_guess_branch_prob) Optimization
  Enable guessing of branch probabilities.
  
@@ -135,60 +114,24 @@
  ; On SVR4 targets, it also controls whether or not to emit a
 --- a/gcc/opts.c
 +++ b/gcc/opts.c
-@@ -1783,6 +1783,17 @@ common_handle_option (struct gcc_options
+@@ -1928,6 +1928,9 @@ common_handle_option (struct gcc_options
  			       opts, opts_set, loc, dc);
        break;
  
-+    case OPT_Werror_maybe_reset:
-+      {
-+        char *ev = getenv ("GCC_NO_WERROR");
-+        if ((ev != NULL) && (*ev != '0'))
-+          warnings_are_errors = 0;
-+      }
-+      break;
-+
 +    case OPT_fhonour_copts:
 +      break;
 +
      case OPT_Wlarger_than_:
        opts->x_larger_than_size = value;
        opts->x_warn_larger_than = value != -1;
---- a/gcc/doc/cppopts.texi
-+++ b/gcc/doc/cppopts.texi
-@@ -163,6 +163,11 @@ in older programs.  This warning is on b
- Make all warnings into hard errors.  Source code which triggers warnings
- will be rejected.
- 
-+ at item -Werror-maybe-reset
-+ at opindex Werror-maybe-reset
-+Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
-+variable is set to anything other than 0 or empty.
-+
- @item -Wsystem-headers
- @opindex Wsystem-headers
- Issue warnings for code in system headers.  These are normally unhelpful
 --- a/gcc/doc/invoke.texi
 +++ b/gcc/doc/invoke.texi
-@@ -263,7 +263,7 @@ Objective-C and Objective-C++ Dialects}.
- -Wno-discarded-qualifiers -Wno-discarded-array-qualifiers @gol
- -Wno-div-by-zero -Wdouble-promotion -Wduplicated-cond @gol
- -Wempty-body  -Wenum-compare -Wno-endif-labels @gol
---Werror  -Werror=* -Wfatal-errors -Wfloat-equal  -Wformat  -Wformat=2 @gol
-+-Werror  -Werror=* -Werror-maybe-reset -Wfatal-errors -Wfloat-equal  -Wformat  -Wformat=2 @gol
- -Wno-format-contains-nul -Wno-format-extra-args -Wformat-nonliteral @gol
- -Wformat-security  -Wformat-signedness  -Wformat-y2k -Wframe-address @gol
- -Wframe-larger-than=@var{len} -Wno-free-nonheap-object -Wjump-misses-init @gol
-@@ -5737,6 +5737,22 @@ This option is only supported for C and
+@@ -6567,6 +6567,17 @@ This option is only supported for C and
  @option{-Wall} and by @option{-Wpedantic}, which can be disabled with
  @option{-Wno-pointer-sign}.
  
-+ at item -Werror-maybe-reset
-+ at opindex Werror-maybe-reset
-+Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
-+variable is set to anything other than 0 or empty.
-+
-+ at item -fhonour-copts
-+ at opindex fhonour-copts
++@item -fhonour-copts
++@opindex fhonour-copts
 +If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
 +given at least once, and warn if it is given more than once.
 +If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
@@ -201,22 +144,3 @@
  @item -Wstack-protector
  @opindex Wstack-protector
  @opindex Wno-stack-protector
-@@ -6605,7 +6621,7 @@ so, the first branch is redirected to ei
- second branch or a point immediately following it, depending on whether
- the condition is known to be true or false.
- 
--Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
-+Enabled at levels @option{-O3}.
- 
- @item -fsplit-wide-types
- @opindex fsplit-wide-types
---- a/gcc/java/jvspec.c
-+++ b/gcc/java/jvspec.c
-@@ -629,6 +629,7 @@ lang_specific_pre_link (void)
-      class name.  Append dummy `.c' that can be stripped by set_input so %b
-      is correct.  */ 
-   set_input (concat (main_class_name, "main.c", NULL));
-+  putenv ("GCC_HONOUR_COPTS=s"); /* XXX hack!  */
-   err = do_spec (jvgenmain_spec);
-   if (err == 0)
-     {
diff --git a/toolchain/gcc/patches/arc-2017.03-release/920-specs_nonfatal_getenv.patch b/toolchain/gcc/patches/arc-2017.09-release/920-specs_nonfatal_getenv.patch
index dc0acb95a8..69b40621dc 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/920-specs_nonfatal_getenv.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/920-specs_nonfatal_getenv.patch
@@ -1,6 +1,13 @@
+Author: Jo-Philipp Wich <jow@openwrt.org>
+Date:   Sat Apr 21 03:02:39 2012 +0000
+
+    gcc: add patch to make the getenv() spec function nonfatal if requested environment variable is unset
+    
+    SVN-Revision: 31390
+
 --- a/gcc/gcc.c
 +++ b/gcc/gcc.c
-@@ -9198,8 +9198,10 @@ getenv_spec_function (int argc, const ch
+@@ -9280,8 +9280,10 @@ getenv_spec_function (int argc, const ch
      value = varname;
  
    if (!value)
diff --git a/toolchain/gcc/patches/arc-2017.03-release/930-fix-mips-noexecstack.patch b/toolchain/gcc/patches/arc-2017.09-release/930-fix-mips-noexecstack.patch
index 2a99840b63..90d10f11e4 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/930-fix-mips-noexecstack.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/930-fix-mips-noexecstack.patch
@@ -48,9 +48,9 @@ sellcey@mips.com
 
 --- a/gcc/config/mips/mips.c
 +++ b/gcc/config/mips/mips.c
-@@ -20228,6 +20228,9 @@ mips_promote_function_mode (const_tree t
- #undef TARGET_HARD_REGNO_SCRATCH_OK
- #define TARGET_HARD_REGNO_SCRATCH_OK mips_hard_regno_scratch_ok
+@@ -22561,6 +22561,9 @@ mips_promote_function_mode (const_tree t
+ #undef TARGET_CUSTOM_FUNCTION_DESCRIPTORS
+ #define TARGET_CUSTOM_FUNCTION_DESCRIPTORS 2
  
 +#undef TARGET_ASM_FILE_END
 +#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
diff --git a/toolchain/gcc/patches/arc-2017.09-release/940-no-clobber-stamp-bits.patch b/toolchain/gcc/patches/arc-2017.09-release/940-no-clobber-stamp-bits.patch
new file mode 100644
index 0000000000..8b88b4066d
--- /dev/null
+++ b/toolchain/gcc/patches/arc-2017.09-release/940-no-clobber-stamp-bits.patch
@@ -0,0 +1,33 @@
+commit 548d9a008ff265e9eaa3c7e0e6e301c6bd5645e6
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Fri Dec 12 17:01:57 2014 +0000
+
+    gcc: don't clobber stamp-bits with a symlink to itself
+    
+    Several versions of gcc have an issue in libstdc++v3 where the build may
+    clobber stamp-bits with a link to itself.  This doesn't manifest itself
+    on all systems.  On several Ubuntu systems, this doesn't appear to be a
+    problem, but it is an issue on Fedora 16 systems.
+    
+    To fix the issue, we'll simply filter out stamp-bits from the symlinks
+    to be generated.
+    
+    Note: gcc 4.4.7 is unaffected by this issue, so no fix is necessary
+    there.
+    
+    Signed-off-by: John Szakmeister <john@szakmeister.net>
+    
+    SVN-Revision: 43669
+
+
+--- a/libstdc++-v3/include/Makefile.in
++++ b/libstdc++-v3/include/Makefile.in
+@@ -1476,7 +1476,7 @@ stamp-bits: ${bits_headers}
+ 	@$(STAMP) stamp-bits
+ 
+ stamp-bits-sup: stamp-bits ${bits_sup_headers}
+-	@-cd ${bits_builddir} && $(LN_S) $? . 2>/dev/null
++	@-cd ${bits_builddir} && $(LN_S) $(filter-out stamp-bits,$?) . 2>/dev/null
+ 	@$(STAMP) stamp-bits-sup
+ 
+ stamp-c_base: ${c_base_headers}
diff --git a/toolchain/gcc/patches/arc-2017.03-release/950-cpp_file_path_translation.patch b/toolchain/gcc/patches/arc-2017.09-release/950-cpp_file_path_translation.patch
index d467eb7c9a..60729dd7fe 100644
--- a/toolchain/gcc/patches/arc-2017.03-release/950-cpp_file_path_translation.patch
+++ b/toolchain/gcc/patches/arc-2017.09-release/950-cpp_file_path_translation.patch
@@ -1,8 +1,18 @@
+commit 331735a357a73c7b8adc205241ac3cc6543d985e
+Author: Felix Fietkau <nbd@openwrt.org>
+Date:   Tue Nov 17 12:38:22 2015 +0000
+
+    gcc: add a patch to 5.x that supports translation of __FILE__ paths
+    
+    Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+    
+    SVN-Revision: 47490
+
 Forward ported from attachment to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47047
 
 --- a/gcc/c-family/c-opts.c
 +++ b/gcc/c-family/c-opts.c
-@@ -574,6 +574,10 @@ c_common_handle_option (size_t scode, co
+@@ -588,6 +588,10 @@ c_common_handle_option (size_t scode, co
        add_path (xstrdup (arg), SYSTEM, 0, true);
        break;
  
@@ -15,7 +25,7 @@ Forward ported from attachment to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=4
        break;
 --- a/gcc/c-family/c.opt
 +++ b/gcc/c-family/c.opt
-@@ -1632,6 +1632,10 @@ iquote
+@@ -1825,6 +1825,10 @@ iquote
  C ObjC C++ ObjC++ Joined Separate MissingArgError(missing path after %qs)
  -iquote <dir>	Add <dir> to the end of the quote include path.
  
@@ -28,19 +38,19 @@ Forward ported from attachment to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=4
  -iwithprefix <dir>	Add <dir> to the end of the system include path.
 --- a/gcc/doc/cpp.texi
 +++ b/gcc/doc/cpp.texi
-@@ -4444,6 +4444,7 @@ without notice.
+@@ -4272,6 +4272,7 @@ Refer to the GCC manual for full documen
  @c man begin SYNOPSIS
  cpp [@option{-D}@var{macro}[=@var{defn}]@dots{}] [@option{-U}@var{macro}]
      [@option{-I}@var{dir}@dots{}] [@option{-iquote}@var{dir}@dots{}]
 +    [@option{-iremap}@var{src}:@var{dst}]
-     [@option{-W}@var{warn}@dots{}]
      [@option{-M}|@option{-MM}] [@option{-MG}] [@option{-MF} @var{filename}]
      [@option{-MP}] [@option{-MQ} @var{target}@dots{}]
+     [@option{-MT} @var{target}@dots{}]
 --- a/gcc/doc/cppopts.texi
 +++ b/gcc/doc/cppopts.texi
-@@ -532,6 +532,12 @@ Search @var{dir} only for header files r
- If @var{dir} begins with @code{=}, then the @code{=} will be replaced
- by the sysroot prefix; see @option{--sysroot} and @option{-isysroot}.
+@@ -220,6 +220,12 @@ extensions @samp{.i}, @samp{.ii} or @sam
+ extensions that GCC uses for preprocessed files created by
+ @option{-save-temps}.
  
 +@item -iremap @var{src}:@var{dst}
 +@opindex iremap
@@ -53,20 +63,9 @@ Forward ported from attachment to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=4
  When preprocessing, handle directives, but do not expand macros.
 --- a/gcc/doc/invoke.texi
 +++ b/gcc/doc/invoke.texi
-@@ -476,8 +476,8 @@ Objective-C and Objective-C++ Dialects}.
- @item Directory Options
- @xref{Directory Options,,Options for Directory Search}.
- @gccoptlist{-B@var{prefix} -I@var{dir} -iplugindir=@var{dir} @gol
---iquote@var{dir} -L@var{dir} -no-canonical-prefixes -I- @gol
----sysroot=@var{dir} --no-sysroot-suffix}
-+-iquote@var{dir} -iremap@var{src}:@var{dst} -L@var{dir} -no-canonical-prefixes @gol
-+-I- --sysroot=@var{dir} --no-sysroot-suffix}
- 
- @item Code Generation Options
- @xref{Code Gen Options,,Options for Code Generation Conventions}.
-@@ -10861,6 +10861,12 @@ be searched for header files only for th
- "@var{file}"}; they are not searched for @code{#include <@var{file}>},
- otherwise just like @option{-I}.
+@@ -11863,6 +11863,12 @@ by @option{-fplugin=@var{name}} instead
+ @option{-fplugin=@var{path}/@var{name}.so}.  This option is not meant
+ to be used by the user, but only passed by the driver.
  
 +@item -iremap @var{src}:@var{dst}
 +@opindex iremap
@@ -79,7 +78,7 @@ Forward ported from attachment to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=4
  Add directory @var{dir} to the list of directories to be searched
 --- a/libcpp/include/cpplib.h
 +++ b/libcpp/include/cpplib.h
-@@ -760,6 +760,9 @@ extern void cpp_set_lang (cpp_reader *,
+@@ -820,6 +820,9 @@ extern void cpp_set_lang (cpp_reader *,
  /* Set the include paths.  */
  extern void cpp_set_include_chains (cpp_reader *, cpp_dir *, cpp_dir *, int);
  
diff --git a/toolchain/gdb/Makefile b/toolchain/gdb/Makefile
index abd6d033cc..5c80eef9aa 100644
--- a/toolchain/gdb/Makefile
+++ b/toolchain/gdb/Makefile
@@ -9,11 +9,11 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=gdb
 
 ifeq ($(CONFIG_arc),y)
-PKG_VERSION:=arc-2017.03-gdb
+PKG_VERSION:=arc-2017.09-gdb
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=https://github.com/foss-for-synopsys-dwc-arc-processors/binutils-gdb/archive/arc-2017.03-gdb
-PKG_HASH:=f47930161e9e99c46ab018dabbf56024739dda29c51f92495eaa0d4d7e3511f6
+PKG_SOURCE_URL:=https://github.com/foss-for-synopsys-dwc-arc-processors/binutils-gdb/archive/arc-2017.09-gdb
+PKG_HASH:=7e3c2a763bf500a40c5c4591a7e22c591dafc1f214b1d514895c1096e85c883a
 GDB_DIR:=binutils-$(PKG_NAME)-$(PKG_VERSION)
 PATCH_DIR:=./patches-arc
 else