build: remove GCC7 support

The development branch is now on version 10, we shouldn't drag to many
old versions and therefore drop at least 7.x.

Signed-off-by: Paul Spooren <mail@aparcar.org>
Acked-by: Rosen Penev <rosenp@gmail.com>
Acked-by: Rui Salvaterra <rsalvaterra@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Aleksander Jan Bajkowski <A.Bajkowski@stud.elka.pw.edu.pl>

26 files changed, 1 insertions, 1252 deletions

diff --git a/rules.mk b/rules.mk
index 8b24d3a3bb..45b58614f1 100644
--- a/rules.mk
+++ b/rules.mk
@@ -138,11 +138,7 @@ else
 endif
 
 ifeq ($(or $(CONFIG_EXTERNAL_TOOLCHAIN),$(CONFIG_TARGET_uml)),)
-  ifeq ($(CONFIG_GCC_USE_IREMAP),y)
-    iremap = -iremap$(1):$(2)
-  else
-    iremap = -f$(if $(CONFIG_REPRODUCIBLE_DEBUG_INFO),file,macro)-prefix-map=$(1)=$(2)
-  endif
+  iremap = -f$(if $(CONFIG_REPRODUCIBLE_DEBUG_INFO),file,macro)-prefix-map=$(1)=$(2)
 endif
 
 PACKAGE_DIR:=$(BIN_DIR)/packages
diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
index 4b25c85016..a0fa609172 100644
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@@ -6,10 +6,6 @@ choice
 	help
 	  Select the version of gcc you wish to use.
 
-	config GCC_USE_VERSION_7
-		bool "gcc 7.x"
-		depends on !arc
-
 	config GCC_USE_VERSION_8
 		bool "gcc 8.x"
 
diff --git a/toolchain/gcc/Config.version b/toolchain/gcc/Config.version
index 924107c357..05cd8f031b 100644
--- a/toolchain/gcc/Config.version
+++ b/toolchain/gcc/Config.version
@@ -1,7 +1,3 @@
-config GCC_VERSION_7
-	default y if GCC_USE_VERSION_7
-	bool
-
 config GCC_VERSION_8
 	default y if GCC_USE_VERSION_8
 	bool
@@ -12,12 +8,6 @@ config GCC_VERSION_11
 
 config GCC_VERSION
 	string
-	default "7.5.0"		if GCC_VERSION_7
 	default "8.4.0"		if GCC_VERSION_8
 	default "11.2.0"	if GCC_VERSION_11
 	default "10.3.0"
-
-config GCC_USE_IREMAP
-	bool
-	default y if GCC_USE_VERSION_7
-	default n
diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk
index bc8af28735..a195002888 100644
--- a/toolchain/gcc/common.mk
+++ b/toolchain/gcc/common.mk
@@ -28,10 +28,6 @@ GCC_DIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE_URL:=@GNU/gcc/gcc-$(PKG_VERSION)
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 
-ifeq ($(PKG_VERSION),7.5.0)
-  PKG_HASH:=b81946e7f01f90528a1f7352ab08cc602b9ccc05d4e44da4bd501c5a189ee661
-endif
-
 ifeq ($(PKG_VERSION),8.4.0)
   PKG_HASH:=e30a6e52d10e1f27ed55104ad233c30bd1e99cfb5ff98ab022dc941edd1b2dd4
 endif
diff --git a/toolchain/gcc/patches/7.5.0/001-revert_register_mode_search.patch b/toolchain/gcc/patches/7.5.0/001-revert_register_mode_search.patch
deleted file mode 100644
index 63e3fee003..0000000000
--- a/toolchain/gcc/patches/7.5.0/001-revert_register_mode_search.patch
+++ /dev/null
@@ -1,77 +0,0 @@
-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
-Author: bergner <bergner@138bc75d-0d04-0410-961f-82ee72b054a4>
-Date:   Thu Sep 5 14:09:07 2013 +0000
-
-        PR target/58139
-        * reginfo.c (choose_hard_reg_mode): Scan through all mode classes
-        looking for widest mode.
-
-
-    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202286 138bc75d-0d04-0410-961f-82ee72b054a4
-
-
---- a/gcc/reginfo.c
-+++ b/gcc/reginfo.c
-@@ -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)
--	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
--	&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
-+	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
-       found_mode = mode;
- 
-+  if (found_mode != VOIDmode)
-+    return found_mode;
-+
-   for (mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT);
-        mode != VOIDmode;
-        mode = GET_MODE_WIDER_MODE (mode))
-     if ((unsigned) hard_regno_nregs[regno][mode] == nregs
- 	&& HARD_REGNO_MODE_OK (regno, mode)
--	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
--	&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
-+	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
-       found_mode = mode;
- 
-+  if (found_mode != VOIDmode)
-+    return found_mode;
-+
-   for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_FLOAT);
-        mode != VOIDmode;
-        mode = GET_MODE_WIDER_MODE (mode))
-     if ((unsigned) hard_regno_nregs[regno][mode] == nregs
- 	&& HARD_REGNO_MODE_OK (regno, mode)
--	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
--	&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
-+	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
-       found_mode = mode;
- 
-+  if (found_mode != VOIDmode)
-+    return found_mode;
-+
-   for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_INT);
-        mode != VOIDmode;
-        mode = GET_MODE_WIDER_MODE (mode))
-     if ((unsigned) hard_regno_nregs[regno][mode] == nregs
- 	&& HARD_REGNO_MODE_OK (regno, mode)
--	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
--	&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
-+	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
-       found_mode = mode;
- 
-   if (found_mode != VOIDmode)
diff --git a/toolchain/gcc/patches/7.5.0/002-case_insensitive.patch b/toolchain/gcc/patches/7.5.0/002-case_insensitive.patch
deleted file mode 100644
index 3442076d7d..0000000000
--- a/toolchain/gcc/patches/7.5.0/002-case_insensitive.patch
+++ /dev/null
@@ -1,24 +0,0 @@
-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" {
- #  define IS_DIR_SEPARATOR(c) IS_DOS_DIR_SEPARATOR (c)
- #  define IS_ABSOLUTE_PATH(f) IS_DOS_ABSOLUTE_PATH (f)
- #else /* not DOSish */
--#  if defined(__APPLE__)
--#    ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
--#      define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
--#    endif
--#  endif /* __APPLE__ */
- #  define HAS_DRIVE_SPEC(f) (0)
- #  define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c)
- #  define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f)
diff --git a/toolchain/gcc/patches/7.5.0/010-documentation.patch b/toolchain/gcc/patches/7.5.0/010-documentation.patch
deleted file mode 100644
index 0106814f41..0000000000
--- a/toolchain/gcc/patches/7.5.0/010-documentation.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-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
-@@ -3121,18 +3121,10 @@ doc/gcc.info: $(TEXI_GCC_FILES)
- doc/gccint.info: $(TEXI_GCCINT_FILES)
- doc/cppinternals.info: $(TEXI_CPPINT_FILES)
- 
--doc/%.info: %.texi
--	if [ x$(BUILD_INFO) = xinfo ]; then \
--		$(MAKEINFO) $(MAKEINFOFLAGS) -I . -I $(gcc_docdir) \
--			-I $(gcc_docdir)/include -o $@ $<; \
--	fi
-+doc/%.info:
- 
- # Duplicate entry to handle renaming of gccinstall.info
--doc/gccinstall.info: $(TEXI_GCCINSTALL_FILES)
--	if [ x$(BUILD_INFO) = xinfo ]; then \
--		$(MAKEINFO) $(MAKEINFOFLAGS) -I $(gcc_docdir) \
--			-I $(gcc_docdir)/include -o $@ $<; \
--	fi
-+doc/gccinstall.info:
- 
- doc/cpp.dvi: $(TEXI_CPP_FILES)
- doc/gcc.dvi: $(TEXI_GCC_FILES)
diff --git a/toolchain/gcc/patches/7.5.0/110-Fix-MIPS-PR-84790.patch b/toolchain/gcc/patches/7.5.0/110-Fix-MIPS-PR-84790.patch
deleted file mode 100644
index 643c5e68a8..0000000000
--- a/toolchain/gcc/patches/7.5.0/110-Fix-MIPS-PR-84790.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-Fix https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84790.
-MIPS16 functions have a static assembler prologue which clobbers
-registers v0 and v1. Add these register clobbers to function call
-instructions.
-
---- a/gcc/config/mips/mips.c
-+++ b/gcc/config/mips/mips.c
-@@ -3098,6 +3098,12 @@ mips_emit_call_insn (rtx pattern, rtx or
-       emit_insn (gen_update_got_version ());
-     }
- 
-+  if (TARGET_MIPS16 && TARGET_USE_GOT)
-+    {
-+      clobber_reg (&CALL_INSN_FUNCTION_USAGE (insn), MIPS16_PIC_TEMP);
-+      clobber_reg (&CALL_INSN_FUNCTION_USAGE (insn), MIPS_PROLOGUE_TEMP (word_mode));
-+    }
-+
-   if (TARGET_MIPS16
-       && TARGET_EXPLICIT_RELOCS
-       && TARGET_CALL_CLOBBERED_GP)
diff --git a/toolchain/gcc/patches/7.5.0/230-musl_libssp.patch b/toolchain/gcc/patches/7.5.0/230-musl_libssp.patch
deleted file mode 100644
index eebee9175c..0000000000
--- a/toolchain/gcc/patches/7.5.0/230-musl_libssp.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-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/7.5.0/300-mips_Os_cpu_rtx_cost_model.patch b/toolchain/gcc/patches/7.5.0/300-mips_Os_cpu_rtx_cost_model.patch
deleted file mode 100644
index 2d0ae46138..0000000000
--- a/toolchain/gcc/patches/7.5.0/300-mips_Os_cpu_rtx_cost_model.patch
+++ /dev/null
@@ -1,21 +0,0 @@
-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
-@@ -19790,7 +19790,7 @@ 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/7.5.0/800-arm_v5te_no_ldrd_strd.patch b/toolchain/gcc/patches/7.5.0/800-arm_v5te_no_ldrd_strd.patch
deleted file mode 100644
index 76200a1661..0000000000
--- a/toolchain/gcc/patches/7.5.0/800-arm_v5te_no_ldrd_strd.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-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/7.5.0/810-arm-softfloat-libgcc.patch b/toolchain/gcc/patches/7.5.0/810-arm-softfloat-libgcc.patch
deleted file mode 100644
index 5c9d86aead..0000000000
--- a/toolchain/gcc/patches/7.5.0/810-arm-softfloat-libgcc.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-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 @@
- LIB1ASMSRC = arm/lib1funcs.S
- LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
--	_ctzsi2 _arm_addsubdf3 _arm_addsubsf3
-+	_ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
-+	_arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
-+	_arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
-+	_arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
-+	_arm_fixsfsi _arm_fixunssfsi
- 
- # Just for these, we omit the frame pointer since it makes such a big
- # difference.
---- a/gcc/config/arm/linux-elf.h
-+++ b/gcc/config/arm/linux-elf.h
-@@ -58,8 +58,6 @@
-    %{shared:-lc} \
-    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
- 
--#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
--
- #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
- 
- #define LINUX_TARGET_LINK_SPEC  "%{h*} \
diff --git a/toolchain/gcc/patches/7.5.0/820-libgcc_pic.patch b/toolchain/gcc/patches/7.5.0/820-libgcc_pic.patch
deleted file mode 100644
index 0cc1e07e2b..0000000000
--- a/toolchain/gcc/patches/7.5.0/820-libgcc_pic.patch
+++ /dev/null
@@ -1,44 +0,0 @@
-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
-@@ -920,11 +920,12 @@ $(libgcov-driver-objects): %$(objext): $
- 
- # Static libraries.
- libgcc.a: $(libgcc-objects)
-+libgcc_pic.a: $(libgcc-s-objects)
- libgcov.a: $(libgcov-objects)
- libunwind.a: $(libunwind-objects)
- libgcc_eh.a: $(libgcc-eh-objects)
- 
--libgcc.a libgcov.a libunwind.a libgcc_eh.a:
-+libgcc.a libgcov.a libunwind.a libgcc_eh.a libgcc_pic.a:
- 	-rm -f $@
- 
- 	objects="$(objects)";					\
-@@ -945,7 +946,7 @@ all: libunwind.a
- endif
- 
- ifeq ($(enable_shared),yes)
--all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
-+all: libgcc_eh.a libgcc_pic.a libgcc_s$(SHLIB_EXT)
- ifneq ($(LIBUNWIND),)
- all: libunwind$(SHLIB_EXT)
- libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)
-@@ -1151,6 +1152,10 @@ install-shared:
- 	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
- 	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
- 
-+	$(INSTALL_DATA) libgcc_pic.a $(mapfile) $(DESTDIR)$(inst_libdir)/
-+	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_pic.a
-+	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_pic.a
-+
- 	$(subst @multilib_dir@,$(MULTIDIR),$(subst \
- 		@shlib_base_name@,libgcc_s,$(subst \
- 		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
diff --git a/toolchain/gcc/patches/7.5.0/840-armv4_pass_fix-v4bx_to_ld.patch b/toolchain/gcc/patches/7.5.0/840-armv4_pass_fix-v4bx_to_ld.patch
deleted file mode 100644
index b9c9b161ad..0000000000
--- a/toolchain/gcc/patches/7.5.0/840-armv4_pass_fix-v4bx_to_ld.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-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
-@@ -88,10 +88,15 @@
- #define MUSL_DYNAMIC_LINKER \
-   "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
- 
-+/* For armv4 we pass --fix-v4bx to linker to support EABI */
-+#undef TARGET_FIX_V4BX_SPEC
-+#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
-+  "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
-+
- /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
-    use the GNU/Linux version, not the generic BPABI version.  */
- #undef  LINK_SPEC
--#define LINK_SPEC EABI_LINK_SPEC					\
-+#define LINK_SPEC EABI_LINK_SPEC TARGET_FIX_V4BX_SPEC			\
-   LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC,				\
- 		       LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
- 
diff --git a/toolchain/gcc/patches/7.5.0/850-use_shared_libgcc.patch b/toolchain/gcc/patches/7.5.0/850-use_shared_libgcc.patch
deleted file mode 100644
index 1d07efed80..0000000000
--- a/toolchain/gcc/patches/7.5.0/850-use_shared_libgcc.patch
+++ /dev/null
@@ -1,54 +0,0 @@
-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
-@@ -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)
- 
--/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
--   do not use -lfloat.  */
--#undef LIBGCC_SPEC
--
- /* Clear the instruction cache from `beg' to `end'.  This is
-    implemented in lib1funcs.S, so ensure an error if this definition
-    is used.  */
---- a/gcc/config/linux.h
-+++ b/gcc/config/linux.h
-@@ -53,6 +53,10 @@ see the files COPYING3 and COPYING.RUNTI
- 	builtin_assert ("system=posix");			\
-     } while (0)
- 
-+#ifndef LIBGCC_SPEC
-+#define LIBGCC_SPEC "%{static|static-libgcc:-lgcc}%{!static:%{!static-libgcc:-lgcc_s}}"
-+#endif
-+
- /* Determine which dynamic linker to use depending on whether GLIBC or
-    uClibc or Bionic or musl is the default C library and whether
-    -muclibc or -mglibc or -mbionic or -mmusl has been passed to change
---- a/libgcc/mkmap-symver.awk
-+++ b/libgcc/mkmap-symver.awk
-@@ -136,5 +136,5 @@ function output(lib) {
-   else if (inherit[lib])
-     printf("} %s;\n", inherit[lib]);
-   else
--    printf ("\n  local:\n\t*;\n};\n");
-+    printf ("\n\t*;\n};\n");
- }
---- a/gcc/config/rs6000/linux.h
-+++ b/gcc/config/rs6000/linux.h
-@@ -60,6 +60,9 @@
- #undef	CPP_OS_DEFAULT_SPEC
- #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
- 
-+#undef LIBGCC_SPEC
-+#define LIBGCC_SPEC "%{!static:%{!static-libgcc:-lgcc_s}} -lgcc"
-+
- #undef  LINK_SHLIB_SPEC
- #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
- 
diff --git a/toolchain/gcc/patches/7.5.0/851-libgcc_no_compat.patch b/toolchain/gcc/patches/7.5.0/851-libgcc_no_compat.patch
deleted file mode 100644
index d710e40717..0000000000
--- a/toolchain/gcc/patches/7.5.0/851-libgcc_no_compat.patch
+++ /dev/null
@@ -1,22 +0,0 @@
-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 @@
- 
- HOST_LIBGCC2_CFLAGS += -DUSE_GAS_SYMVER
- 
--LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c \
--  $(srcdir)/unwind-compat.c $(srcdir)/unwind-dw2-fde-compat.c
-+LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
- LIB2ADDEHSTATIC = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
- 
- # Override the default value from t-slibgcc-elf-ver and mention -lunwind
diff --git a/toolchain/gcc/patches/7.5.0/870-ppc_no_crtsavres.patch b/toolchain/gcc/patches/7.5.0/870-ppc_no_crtsavres.patch
deleted file mode 100644
index 1b448eb5b2..0000000000
--- a/toolchain/gcc/patches/7.5.0/870-ppc_no_crtsavres.patch
+++ /dev/null
@@ -1,18 +0,0 @@
-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
-@@ -26981,7 +26981,7 @@ 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/7.5.0/881-no_tm_section.patch b/toolchain/gcc/patches/7.5.0/881-no_tm_section.patch
deleted file mode 100644
index a58dc27e64..0000000000
--- a/toolchain/gcc/patches/7.5.0/881-no_tm_section.patch
+++ /dev/null
@@ -1,22 +0,0 @@
-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/7.5.0/900-bad-mips16-crt.patch b/toolchain/gcc/patches/7.5.0/900-bad-mips16-crt.patch
deleted file mode 100644
index f5cc0a74ee..0000000000
--- a/toolchain/gcc/patches/7.5.0/900-bad-mips16-crt.patch
+++ /dev/null
@@ -1,30 +0,0 @@
-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/7.5.0/910-mbsd_multi.patch b/toolchain/gcc/patches/7.5.0/910-mbsd_multi.patch
deleted file mode 100644
index f19007ea30..0000000000
--- a/toolchain/gcc/patches/7.5.0/910-mbsd_multi.patch
+++ /dev/null
@@ -1,146 +0,0 @@
-commit 99368862e44740ff4fd33760893f04e14f9dbdf1
-Author: Felix Fietkau <nbd@openwrt.org>
-Date:   Tue Jul 31 00:52:27 2007 +0000
-
-    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.
-
-	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
-@@ -108,6 +108,9 @@ static int class_dump_flags;
- /* Whether any standard preincluded header has been preincluded.  */
- static bool done_preinclude;
- 
-+/* Check if a port honours COPTS.  */
-+static int honour_copts = 0;
-+
- static void handle_OPT_d (const char *);
- static void set_std_cxx98 (int);
- static void set_std_cxx11 (int);
-@@ -456,6 +459,12 @@ c_common_handle_option (size_t scode, co
-       flag_no_builtin = !value;
-       break;
- 
-+    case OPT_fhonour_copts:
-+      if (c_language == clk_c) {
-+        honour_copts++;
-+      }
-+      break;
-+
-     case OPT_fconstant_string_class_:
-       constant_string_class_name = arg;
-       break;
-@@ -1084,6 +1093,47 @@ c_common_init (void)
-       return false;
-     }
- 
-+  if (c_language == clk_c) {
-+    char *ev = getenv ("GCC_HONOUR_COPTS");
-+    int evv;
-+    if (ev == NULL)
-+      evv = -1;
-+    else if ((*ev == '0') || (*ev == '\0'))
-+      evv = 0;
-+    else if (*ev == '1')
-+      evv = 1;
-+    else if (*ev == '2')
-+      evv = 2;
-+    else if (*ev == 's')
-+      evv = -1;
-+    else {
-+      warning (0, "unknown GCC_HONOUR_COPTS value, assuming 1");
-+      evv = 1; /* maybe depend this on something like MIRBSD_NATIVE?  */
-+    }
-+    if (evv == 1) {
-+      if (honour_copts == 0) {
-+        error ("someone does not honour COPTS at all in lenient mode");
-+        return false;
-+      } else if (honour_copts != 1) {
-+        warning (0, "someone does not honour COPTS correctly, passed %d times",
-+         honour_copts);
-+      }
-+    } else if (evv == 2) {
-+      if (honour_copts == 0) {
-+        error ("someone does not honour COPTS at all in strict mode");
-+        return false;
-+      } else if (honour_copts != 1) {
-+        error ("someone does not honour COPTS correctly, passed %d times",
-+         honour_copts);
-+        return false;
-+      }
-+    } else if (evv == 0) {
-+      if (honour_copts != 1)
-+        inform (0, "someone does not honour COPTS correctly, passed %d times",
-+         honour_copts);
-+    }
-+  }
-+
-   return true;
- }
- 
---- a/gcc/c-family/c.opt
-+++ b/gcc/c-family/c.opt
-@@ -1412,6 +1412,9 @@ C++ ObjC++ Optimization Alias(fexception
- fhonor-std
- C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
- 
-+fhonour-copts
-+C ObjC C++ ObjC++ RejectNegative
-+
- fhosted
- C ObjC
- Assume normal C execution environment.
---- a/gcc/common.opt
-+++ b/gcc/common.opt
-@@ -1510,6 +1510,9 @@ fguess-branch-probability
- Common Report Var(flag_guess_branch_prob) Optimization
- Enable guessing of branch probabilities.
- 
-+fhonour-copts
-+Common RejectNegative
-+
- ; Nonzero means ignore `#ident' directives.  0 means handle them.
- ; Generate position-independent code for executables if possible
- ; On SVR4 targets, it also controls whether or not to emit a
---- a/gcc/opts.c
-+++ b/gcc/opts.c
-@@ -1954,6 +1954,9 @@ common_handle_option (struct gcc_options
- 			       opts, opts_set, loc, dc);
-       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/invoke.texi
-+++ b/gcc/doc/invoke.texi
-@@ -6572,6 +6572,17 @@ This option is only supported for C and
- @option{-Wall} and by @option{-Wpedantic}, which can be disabled with
- @option{-Wno-pointer-sign}.
- 
-+@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
-+given exactly once.
-+If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
-+is not given exactly once.
-+The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
-+This flag and environment variable only affect the C language.
-+
- @item -Wstack-protector
- @opindex Wstack-protector
- @opindex Wno-stack-protector
diff --git a/toolchain/gcc/patches/7.5.0/920-specs_nonfatal_getenv.patch b/toolchain/gcc/patches/7.5.0/920-specs_nonfatal_getenv.patch
deleted file mode 100644
index a0fdc5f165..0000000000
--- a/toolchain/gcc/patches/7.5.0/920-specs_nonfatal_getenv.patch
+++ /dev/null
@@ -1,22 +0,0 @@
-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
-@@ -9281,8 +9281,10 @@ getenv_spec_function (int argc, const ch
-     value = varname;
- 
-   if (!value)
--    fatal_error (input_location,
--		 "environment variable %qs not defined", varname);
-+    {
-+      warning (input_location, "environment variable %qs not defined", varname);
-+      value = "";
-+    }
- 
-   /* We have to escape every character of the environment variable so
-      they are not interpreted as active spec characters.  A
diff --git a/toolchain/gcc/patches/7.5.0/930-fix-mips-noexecstack.patch b/toolchain/gcc/patches/7.5.0/930-fix-mips-noexecstack.patch
deleted file mode 100644
index 5affd6f92d..0000000000
--- a/toolchain/gcc/patches/7.5.0/930-fix-mips-noexecstack.patch
+++ /dev/null
@@ -1,111 +0,0 @@
-From da45b3fde60095756f5f6030f6012c23a3d34429 Mon Sep 17 00:00:00 2001
-From: Andrew McDonnell <bugs@andrewmcdonnell.net>
-Date: Fri, 3 Oct 2014 19:09:00 +0930
-Subject: Add .note.GNU-stack section
-
-See http://lists.busybox.net/pipermail/uclibc/2014-October/048671.html
-Below copied from https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02430.html
-
-Re: [Patch, MIPS] Add .note.GNU-stack section
-
-    From: Steve Ellcey <sellcey at mips dot com>
-
-On Wed, 2014-09-10 at 10:15 -0700, Eric Christopher wrote:
->
->
-> On Wed, Sep 10, 2014 at 9:27 AM, <pinskia@gmail.com> wrote:
-
->         This works except you did not update the assembly files in
->         libgcc or glibc. We (Cavium) have the same patch in our tree
->         for a few released versions.
-
-> Mind just checking yours in then Andrew?
-
-> Thanks!
-> -eric
-
-I talked to Andrew about what files he changed in GCC and created and
-tested this new patch.  Andrew also mentioned changing some assembly
-files in glibc but I don't see any use of '.section .note.GNU-stack' in
-any assembly files in glibc (for any platform) so I wasn't planning on
-creating a glibc to add them to mips glibc assembly language files.
-
-OK to check in this patch?
-
-Steve Ellcey
-sellcey@mips.com
-
-
-
-2014-09-26  Steve Ellcey  <sellcey@mips.com>
----
- gcc/config/mips/mips.c          | 3 +++
- libgcc/config/mips/crti.S       | 4 ++++
- libgcc/config/mips/crtn.S       | 3 +++
- libgcc/config/mips/mips16.S     | 4 ++++
- libgcc/config/mips/vr4120-div.S | 4 ++++
- 5 files changed, 18 insertions(+)
-
---- a/gcc/config/mips/mips.c
-+++ b/gcc/config/mips/mips.c
-@@ -22567,6 +22567,9 @@ 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
-+
- struct gcc_target targetm = TARGET_INITIALIZER;
- 
- #include "gt-mips.h"
---- a/libgcc/config/mips/crti.S
-+++ b/libgcc/config/mips/crti.S
-@@ -21,6 +21,10 @@ a copy of the GCC Runtime Library Except
- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
- <http://www.gnu.org/licenses/>.  */
- 
-+
-+/* An executable stack is *not* required for these functions.  */
-+	.section .note.GNU-stack,"",%progbits
-+
- /* 4 slots for argument spill area.  1 for cpreturn, 1 for stack.
-    Return spill offset of 40 and 20.  Aligned to 16 bytes for n32.  */
- 
---- a/libgcc/config/mips/crtn.S
-+++ b/libgcc/config/mips/crtn.S
-@@ -21,6 +21,9 @@ a copy of the GCC Runtime Library Except
- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
- <http://www.gnu.org/licenses/>.  */
- 
-+/* An executable stack is *not* required for these functions.  */
-+	.section .note.GNU-stack,"",%progbits
-+
- /* 4 slots for argument spill area.  1 for cpreturn, 1 for stack.
-    Return spill offset of 40 and 20.  Aligned to 16 bytes for n32.  */
- 
---- a/libgcc/config/mips/mips16.S
-+++ b/libgcc/config/mips/mips16.S
-@@ -48,6 +48,10 @@ see the files COPYING3 and COPYING.RUNTI
-    values using the soft-float calling convention, but do the actual
-    operation using the hard floating point instructions.  */
- 
-+/* An executable stack is *not* required for these functions.  */
-+	.section .note.GNU-stack,"",%progbits
-+	.previous
-+
- #if defined _MIPS_SIM && (_MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIO64)
- 
- /* This file contains 32-bit assembly code.  */
---- a/libgcc/config/mips/vr4120-div.S
-+++ b/libgcc/config/mips/vr4120-div.S
-@@ -26,6 +26,10 @@ see the files COPYING3 and COPYING.RUNTI
-    -mfix-vr4120.  div and ddiv do not give the correct result when one
-    of the operands is negative.  */
- 
-+/* An executable stack is *not* required for these functions.  */
-+	.section .note.GNU-stack,"",%progbits
-+	.previous
-+
- 	.set	nomips16
- 
- #define DIV								\
diff --git a/toolchain/gcc/patches/7.5.0/931-libffi-fix-MIPS-softfloat-build-issue.patch b/toolchain/gcc/patches/7.5.0/931-libffi-fix-MIPS-softfloat-build-issue.patch
deleted file mode 100644
index 9d436efc18..0000000000
--- a/toolchain/gcc/patches/7.5.0/931-libffi-fix-MIPS-softfloat-build-issue.patch
+++ /dev/null
@@ -1,175 +0,0 @@
-From c0c62fa4256f805389f16ebfc4a60cf789129b50 Mon Sep 17 00:00:00 2001
-From: BangLang Huang <banglang.huang@foxmail.com>
-Date: Wed, 9 Nov 2016 10:36:49 +0800
-Subject: [PATCH] libffi: fix MIPS softfloat build issue
-
-Backported from github.com/libffi/libffi#272
-
-Signed-off-by: BangLang Huang <banglang.huang@foxmail.com>
-Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
----
- libffi/src/mips/n32.S | 17 +++++++++++++++++
- libffi/src/mips/o32.S | 17 +++++++++++++++++
- 2 files changed, 34 insertions(+)
-
-diff --git a/libffi/src/mips/n32.S b/libffi/src/mips/n32.S
-index c6985d30a6f..8f25994773c 100644
---- a/libffi/src/mips/n32.S
-+++ b/libffi/src/mips/n32.S
-@@ -107,6 +107,16 @@ loadregs:
- 
- 	REG_L	t6, 3*FFI_SIZEOF_ARG($fp)  # load the flags word into t6.
- 
-+#ifdef __mips_soft_float
-+	REG_L	a0, 0*FFI_SIZEOF_ARG(t9)
-+	REG_L	a1, 1*FFI_SIZEOF_ARG(t9)
-+	REG_L	a2, 2*FFI_SIZEOF_ARG(t9)
-+	REG_L	a3, 3*FFI_SIZEOF_ARG(t9)
-+	REG_L	a4, 4*FFI_SIZEOF_ARG(t9)
-+	REG_L	a5, 5*FFI_SIZEOF_ARG(t9)
-+	REG_L	a6, 6*FFI_SIZEOF_ARG(t9)
-+	REG_L	a7, 7*FFI_SIZEOF_ARG(t9)
-+#else
- 	and	t4, t6, ((1<<FFI_FLAG_BITS)-1)
- 	REG_L	a0, 0*FFI_SIZEOF_ARG(t9)
- 	beqz	t4, arg1_next
-@@ -193,6 +203,7 @@ arg7_next:
- arg8_doublep:	
-  	l.d	$f19, 7*FFI_SIZEOF_ARG(t9)	
- arg8_next:	
-+#endif
- 
- callit:		
- 	# Load the function pointer
-@@ -214,6 +225,7 @@ retint:
- 	b	epilogue
- 
- retfloat:
-+#ifndef __mips_soft_float
- 	bne     t6, FFI_TYPE_FLOAT, retdouble
- 	jal	t9
- 	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
-@@ -272,6 +284,7 @@ retstruct_f_d:
- 	s.s	$f0, 0(t4)
- 	s.d	$f2, 8(t4)
- 	b	epilogue
-+#endif
- 
- retstruct_d_soft:
- 	bne	t6, FFI_TYPE_STRUCT_D_SOFT, retstruct_f_soft
-@@ -429,6 +442,7 @@ ffi_closure_N32:
- 	REG_S	a6, A6_OFF2($sp)
- 	REG_S	a7, A7_OFF2($sp)
- 
-+#ifndef __mips_soft_float
- 	# Store all possible float/double registers.
- 	s.d	$f12, F12_OFF2($sp)
- 	s.d	$f13, F13_OFF2($sp)
-@@ -438,6 +452,7 @@ ffi_closure_N32:
- 	s.d	$f17, F17_OFF2($sp)
- 	s.d	$f18, F18_OFF2($sp)
- 	s.d	$f19, F19_OFF2($sp)
-+#endif
- 
- 	# Call ffi_closure_mips_inner_N32 to do the real work.
- 	LA	t9, ffi_closure_mips_inner_N32
-@@ -458,6 +473,7 @@ cls_retint:
- 	b	cls_epilogue
- 
- cls_retfloat:
-+#ifndef __mips_soft_float
- 	bne     v0, FFI_TYPE_FLOAT, cls_retdouble
- 	l.s	$f0, V0_OFF2($sp)
- 	b	cls_epilogue
-@@ -500,6 +516,7 @@ cls_retstruct_f_d:
- 	l.s	$f0, V0_OFF2($sp)
- 	l.d	$f2, V1_OFF2($sp)
- 	b	cls_epilogue
-+#endif
- 	
- cls_retstruct_small2:	
- 	REG_L	v0, V0_OFF2($sp)
-diff --git a/libffi/src/mips/o32.S b/libffi/src/mips/o32.S
-index eb279813a76..1aff4b14814 100644
---- a/libffi/src/mips/o32.S
-+++ b/libffi/src/mips/o32.S
-@@ -82,13 +82,16 @@ sixteen:
- 		
- 	ADDU	$sp, 4 * FFI_SIZEOF_ARG		# adjust $sp to new args
- 
-+#ifndef __mips_soft_float
- 	bnez	t0, pass_d			# make it quick for int
-+#endif
- 	REG_L	a0, 0*FFI_SIZEOF_ARG($sp)	# just go ahead and load the
- 	REG_L	a1, 1*FFI_SIZEOF_ARG($sp)	# four regs.
- 	REG_L	a2, 2*FFI_SIZEOF_ARG($sp)
- 	REG_L	a3, 3*FFI_SIZEOF_ARG($sp)
- 	b	call_it
- 
-+#ifndef __mips_soft_float
- pass_d:
- 	bne	t0, FFI_ARGS_D, pass_f
- 	l.d	$f12, 0*FFI_SIZEOF_ARG($sp)	# load $fp regs from args
-@@ -130,6 +133,7 @@ pass_f_d:
-  #	bne	t0, FFI_ARGS_F_D, call_it
- 	l.s	$f12, 0*FFI_SIZEOF_ARG($sp)	# load $fp regs from args
- 	l.d	$f14, 2*FFI_SIZEOF_ARG($sp)	# passing double and float
-+#endif
- 
- call_it:	
- 	# Load the function pointer
-@@ -158,14 +162,23 @@ retfloat:
- 	bne     t2, FFI_TYPE_FLOAT, retdouble
- 	jalr	t9
- 	REG_L	t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
-+#ifndef __mips_soft_float
- 	s.s	$f0, 0(t0)
-+#else
-+	REG_S v0, 0(t0)
-+#endif
- 	b	epilogue
- 
- retdouble:	
- 	bne	t2, FFI_TYPE_DOUBLE, noretval
- 	jalr	t9
- 	REG_L	t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
-+#ifndef __mips_soft_float
- 	s.d	$f0, 0(t0)
-+#else
-+	REG_S v1, 4(t0)
-+	REG_S v0, 0(t0)
-+#endif
- 	b	epilogue
- 	
- noretval:	
-@@ -261,9 +274,11 @@ $LCFI7:
- 	li	$13, 1		# FFI_O32
- 	bne	$16, $13, 1f	# Skip fp save if FFI_O32_SOFT_FLOAT
- 	
-+#ifndef __mips_soft_float
- 	# Store all possible float/double registers.
- 	s.d	$f12, FA_0_0_OFF2($fp)
- 	s.d	$f14, FA_1_0_OFF2($fp)
-+#endif
- 1:	
- 	# Call ffi_closure_mips_inner_O32 to do the work.
- 	la	t9, ffi_closure_mips_inner_O32
-@@ -281,6 +296,7 @@ $LCFI7:
- 	li	$13, 1		# FFI_O32
- 	bne	$16, $13, 1f	# Skip fp restore if FFI_O32_SOFT_FLOAT
- 
-+#ifndef __mips_soft_float
- 	li	$9, FFI_TYPE_FLOAT
- 	l.s	$f0, V0_OFF2($fp)
- 	beq	$8, $9, closure_done
-@@ -288,6 +304,7 @@ $LCFI7:
- 	li	$9, FFI_TYPE_DOUBLE
- 	l.d	$f0, V0_OFF2($fp)
- 	beq	$8, $9, closure_done
-+#endif
- 1:	
- 	REG_L	$3, V1_OFF2($fp)
- 	REG_L	$2, V0_OFF2($fp)
--- 
-2.16.3
-
diff --git a/toolchain/gcc/patches/7.5.0/940-no-clobber-stamp-bits.patch b/toolchain/gcc/patches/7.5.0/940-no-clobber-stamp-bits.patch
deleted file mode 100644
index 6a4d54aaa2..0000000000
--- a/toolchain/gcc/patches/7.5.0/940-no-clobber-stamp-bits.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-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
-@@ -1474,7 +1474,7 @@ 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/7.5.0/950-cpp_file_path_translation.patch b/toolchain/gcc/patches/7.5.0/950-cpp_file_path_translation.patch
deleted file mode 100644
index cd30cb2014..0000000000
--- a/toolchain/gcc/patches/7.5.0/950-cpp_file_path_translation.patch
+++ /dev/null
@@ -1,181 +0,0 @@
-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
-@@ -588,6 +588,10 @@ c_common_handle_option (size_t scode, co
-       add_path (xstrdup (arg), SYSTEM, 0, true);
-       break;
- 
-+    case OPT_iremap:
-+      add_cpp_remap_path (arg);
-+      break;
-+
-     case OPT_iwithprefix:
-       add_prefixed_path (arg, SYSTEM);
-       break;
---- a/gcc/c-family/c.opt
-+++ b/gcc/c-family/c.opt
-@@ -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.
- 
-+iremap
-+C ObjC C++ ObjC++ Joined Separate
-+-iremap <src:dst>  Convert <src> to <dst> if it occurs as prefix in __FILE__.
-+
- iwithprefix
- C ObjC C++ ObjC++ Joined Separate
- -iwithprefix <dir>	Add <dir> to the end of the system include path.
---- a/gcc/doc/cpp.texi
-+++ b/gcc/doc/cpp.texi
-@@ -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{-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
-@@ -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
-+Replace the prefix @var{src} in __FILE__ with @var{dst} at expansion time.
-+This option can be specified more than once.  Processing stops at the first
-+match.
-+
- @item -fdirectives-only
- @opindex fdirectives-only
- When preprocessing, handle directives, but do not expand macros.
---- a/gcc/doc/invoke.texi
-+++ b/gcc/doc/invoke.texi
-@@ -11871,6 +11871,12 @@ 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
-+Replace the prefix @var{src} in __FILE__ with @var{dst} at expansion time.
-+This option can be specified more than once.  Processing stops at the first
-+match.
-+
- @item -L@var{dir}
- @opindex L
- Add directory @var{dir} to the list of directories to be searched
---- a/libcpp/include/cpplib.h
-+++ b/libcpp/include/cpplib.h
-@@ -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);
- 
-+/* Provide src:dst pair for __FILE__ remapping.  */
-+extern void add_cpp_remap_path (const char *);
-+
- /* Call these to get pointers to the options, callback, and deps
-    structures for a given reader.  These pointers are good until you
-    call cpp_finish on that reader.  You can either edit the callbacks
---- a/libcpp/macro.c
-+++ b/libcpp/macro.c
-@@ -227,6 +227,64 @@ static const char * const monthnames[] =
-   "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
- };
- 
-+static size_t remap_pairs;
-+static char **remap_src;
-+static char **remap_dst;
-+
-+void
-+add_cpp_remap_path (const char *arg)
-+{
-+  const char *arg_dst;
-+  size_t len;
-+
-+  arg_dst = strchr(arg, ':');
-+  if (arg_dst == NULL)
-+    {
-+      fprintf(stderr, "Invalid argument for -iremap\n");
-+      exit(1);
-+    }
-+
-+  len = arg_dst - arg;
-+  ++arg_dst;
-+
-+  remap_src = (char **) xrealloc(remap_src, sizeof(char *) * (remap_pairs + 1));
-+  remap_dst = (char **) xrealloc(remap_dst, sizeof(char *) * (remap_pairs + 1));
-+
-+  remap_src[remap_pairs] = (char *) xmalloc(len + 1);
-+  memcpy(remap_src[remap_pairs], arg, len);
-+  remap_src[remap_pairs][len] = '\0';
-+  remap_dst[remap_pairs] = xstrdup(arg_dst);
-+  ++remap_pairs;
-+}
-+
-+static const char *
-+cpp_remap_file (const char *arg, char **tmp_name)
-+{
-+  char *result;
-+  size_t i, len;
-+
-+  for (i = 0; i < remap_pairs; ++i)
-+    {
-+      len = strlen (remap_src[i]);
-+      if (strncmp (remap_src[i], arg, len))
-+	continue;
-+      if (arg[len] == '\0')
-+	return xstrdup (remap_dst[i]);
-+      if (arg[len] != '/')
-+	continue;
-+      arg += len;
-+      len = strlen (remap_dst[i]);
-+      result = (char *) xmalloc (len + strlen (arg) + 1);
-+      memcpy(result, remap_dst[i], len);
-+      strcpy(result + len, arg);
-+      *tmp_name = result;
-+
-+      return result;
-+    }
-+
-+   return arg;
-+}
-+
- /* Helper function for builtin_macro.  Returns the text generated by
-    a builtin macro. */
- const uchar *
-@@ -290,6 +348,7 @@ _cpp_builtin_macro_text (cpp_reader *pfi
-       {
- 	unsigned int len;
- 	const char *name;
-+	char *tmp_name = NULL;
- 	uchar *buf;
- 	
- 	if (node->value.builtin == BT_FILE)
-@@ -301,6 +360,7 @@ _cpp_builtin_macro_text (cpp_reader *pfi
- 	    if (!name)
- 	      abort ();
- 	  }
-+	name = cpp_remap_file (name, &tmp_name);
- 	len = strlen (name);
- 	buf = _cpp_unaligned_alloc (pfile, len * 2 + 3);
- 	result = buf;
-@@ -308,6 +368,7 @@ _cpp_builtin_macro_text (cpp_reader *pfi
- 	buf = cpp_quote_string (buf + 1, (const unsigned char *) name, len);
- 	*buf++ = '"';
- 	*buf = '\0';
-+	free (tmp_name);
-       }
-       break;
- 
diff --git a/toolchain/gcc/patches/7.5.0/960-gotools-fix-compilation-when-making-cross-compiler.patch b/toolchain/gcc/patches/7.5.0/960-gotools-fix-compilation-when-making-cross-compiler.patch
deleted file mode 100644
index 556fa16473..0000000000
--- a/toolchain/gcc/patches/7.5.0/960-gotools-fix-compilation-when-making-cross-compiler.patch
+++ /dev/null
@@ -1,73 +0,0 @@
-From dda6b050cd74a352670787a294596a9c56c21327 Mon Sep 17 00:00:00 2001
-From: Yousong Zhou <yszhou4tech@gmail.com>
-Date: Fri, 4 May 2018 18:20:53 +0800
-Subject: [PATCH] gotools: fix compilation when making cross compiler
-
-libgo is "the runtime support library for the Go programming language.
-This library is intended for use with the Go frontend."
-
-gccgo will link target files with libgo.so which depends on libgcc_s.so.1, but
-the linker will complain that it cannot find it.  That's because shared libgcc
-is not present in the install directory yet.  libgo.so was made without problem
-because gcc will emit -lgcc_s when compiled with -shared option.  When gotools
-were being made, it was supplied with -static-libgcc thus no link option was
-provided.  Check LIBGO in gcc/go/gcc-spec.c for how gccgo make a builtin spec
-for linking with libgo.so
-
-- GccgoCrossCompilation, https://github.com/golang/go/wiki/GccgoCrossCompilation
-- Cross-building instructions, http://www.eglibc.org/archives/patches/msg00078.html
-
-When 3-pass GCC compilation is used, shared libgcc runtime libraries will be
-available after gcc pass2 completed and will meet the gotools link requirement
-at gcc pass3
----
- gotools/Makefile.am | 4 +++-
- gotools/Makefile.in | 4 +++-
- 2 files changed, 6 insertions(+), 2 deletions(-)
-
-diff --git a/gotools/Makefile.am b/gotools/Makefile.am
-index 5f3940a278b..9c22f5df103 100644
---- a/gotools/Makefile.am
-+++ b/gotools/Makefile.am
-@@ -26,6 +26,7 @@ PWD_COMMAND = $${PWDCMD-pwd}
- STAMP = echo timestamp >
- 
- libgodir = ../$(target_noncanonical)/libgo
-+libgccdir = ../$(target_noncanonical)/libgcc
- LIBGODEP = $(libgodir)/libgo.la
- 
- if NATIVE
-@@ -38,7 +39,8 @@ endif
- GOCFLAGS = $(CFLAGS_FOR_TARGET)
- GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
- 
--AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs
-+AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \
-+	-L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s
- GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@
- 
- cmdsrcdir = $(srcdir)/../libgo/go/cmd
-diff --git a/gotools/Makefile.in b/gotools/Makefile.in
-index 4386576b011..0bdd9290e01 100644
---- a/gotools/Makefile.in
-+++ b/gotools/Makefile.in
-@@ -252,13 +252,15 @@ mkinstalldirs = $(SHELL) $(toplevel_srcdir)/mkinstalldirs
- PWD_COMMAND = $${PWDCMD-pwd}
- STAMP = echo timestamp >
- libgodir = ../$(target_noncanonical)/libgo
-+libgccdir = ../$(target_noncanonical)/libgcc
- LIBGODEP = $(libgodir)/libgo.la
- @NATIVE_FALSE@GOCOMPILER = $(GOC)
- 
- # Use the compiler we just built.
- @NATIVE_TRUE@GOCOMPILER = $(GOC_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET)
- GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
--AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs
-+AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \
-+	-L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s
- GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@
- cmdsrcdir = $(srcdir)/../libgo/go/cmd
- go_cmd_go_files = \
--- 
-2.16.3
-