#
-# Copyright (C) 2008 OpenWrt.org
+# Copyright (C) 2002-2003 Erik Andersen <andersen@uclibc.org>
+# Copyright (C) 2004 Manuel Novoa III <mjn3@uclibc.org>
+# Copyright (C) 2005-2006 Felix Fietkau <nbd@nbd.name>
+# Copyright (C) 2006-2014 OpenWrt.org
#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
include $(TOPDIR)/rules.mk
-define Package/gcc/description
- Build a native toolchain for compiling on target
- device.
-endef
-
-
-define Package/gcc
- SECTION:=devel
- CATEGORY:=Development
- TITLE:=gcc
- MAINTAINER:=W. Michael Petullo <mike@flyn.org>
- DEPENDS:= +binutils +libstdcpp @!arc
- MENU:=1
-endef
PKG_NAME:=gcc
-# PKG_VERSION=7.3.0
-PKG_VERSION=7.4.0
-PKG_RELEASE:=7
+GCC_VERSION:=$(call qstrip,$(CONFIG_GCC_VERSION))
+PKG_VERSION:=$(firstword $(subst +, ,$(GCC_VERSION)))
+PKG_RELEASE:=$(AUTORELEASE)
+GCC_DIR:=$(PKG_NAME)-$(PKG_VERSION)
+
PKG_SOURCE_URL:=@GNU/gcc/gcc-$(PKG_VERSION)
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
PKG_INSTALL:=1
PKG_CPE_ID:=cpe:/a:gnu:gcc
-ifeq ($(PKG_VERSION),7.3.0)
- PKG_HASH:=832ca6ae04636adbb430e865a1451adf6979ab44ca1c8374f61fba65645ce15c
+ifeq ($(PKG_VERSION),8.4.0)
+ PKG_HASH:=e30a6e52d10e1f27ed55104ad233c30bd1e99cfb5ff98ab022dc941edd1b2dd4
endif
-ifeq ($(PKG_VERSION),7.4.0)
- PKG_HASH:=eddde28d04f334aec1604456e536416549e9b1aa137fc69204e65eb0c009fe51
+
+ifeq ($(PKG_VERSION),10.3.0)
+ PKG_HASH:=64f404c1a650f27fc33da242e1f2df54952e3963a49e06e73f6940f3223ac344
endif
+ifeq ($(PKG_VERSION),11.2.0)
+ PKG_HASH:=d08edc536b54c372a1010ff6619dd274c0f1603aa49212ba20f7aa2cda36fa8b
+endif
+
+PATCH_DIR=./patches/$(GCC_VERSION)
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/gcc
+ SECTION:=devel
+ CATEGORY:=Development
+ TITLE:=gcc
+ MAINTAINER:=W. Michael Petullo <mike@flyn.org>
+ DEPENDS:= +binutils +libstdcpp @!arc
+ MENU:=1
+endef
define Package/gcc/config
source "$(SOURCE)/Config.in"
REMOVE_STATIC_SPEC=rm /usr/lib/$(PKG_NAME)/$(REAL_GNU_TARGET_NAME)/$(PKG_VERSION)/specs
endif
-include $(INCLUDE_DIR)/package.mk
TARGET_LANGUAGES:="c,c++"
BUGURL=https://dev.openwrt.org/
PKGVERSION=OpenWrt GCC $(PKG_VERSION)
TARGET_CPPFLAGS += -D_GLIBCXX_INCLUDE_NEXT_C_HEADERS
-# not using sstrip here as this fucks up the .so's somehow
+# not using sstrip here as this messes up the .so's somehow
STRIP:=$(TOOLCHAIN_DIR)/bin/$(TARGET_CROSS)strip
RSTRIP:= \
NM="$(TOOLCHAIN_DIR)/bin/$(TARGET_CROSS)nm" \
ARM_FLOAT_OPTION:= --with-float=hard
endif
endif
+
GMPSRC=gmp-6.1.0
define Download/gmp
define Build/Prepare
$(PKG_UNPACK)
-# we have to download and unpack additional stuff before patching
+# we have to download and unpack additional stuff before patching
tar -C $(PKG_BUILD_DIR) -xvjf $(DL_DIR)/$(GMPSRC).tar.bz2
ln -sf $(PKG_BUILD_DIR)/$(GMPSRC) $(PKG_BUILD_DIR)/gmp
tar -C $(PKG_BUILD_DIR) -xvzf $(DL_DIR)/$(MPCSRC).tar.gz
cp $(PKG_BUILD_DIR)/config.sub $(PKG_BUILD_DIR)/mpc/
endef
-CONFIGURE_ARGS += CXXFLAGS_FOR_TARGET="-g -O2 -D_GLIBCXX_INCLUDE_NEXT_C_HEADERS"
+CONFIGURE_ARGS += CXXFLAGS_FOR_TARGET="-g -O2 -D_GLIBCXX_INCLUDE_NEXT_C_HEADERS"
define Build/Configure
(cd $(PKG_BUILD_DIR); rm -f config.cache; \
+++ /dev/null
-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)
+++ /dev/null
-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)
+++ /dev/null
---- a/gcc/real.h
-+++ b/gcc/real.h
-@@ -70,9 +70,10 @@ struct GTY(()) real_value {
- + (REAL_VALUE_TYPE_SIZE%HOST_BITS_PER_WIDE_INT ? 1 : 0)) /* round up */
-
- /* Verify the guess. */
-+#ifndef __LP64__
- extern char test_real_width
- [sizeof (REAL_VALUE_TYPE) <= REAL_WIDTH * sizeof (HOST_WIDE_INT) ? 1 : -1];
--
-+#endif
- /* Calculate the format for CONST_DOUBLE. We need as many slots as
- are necessary to overlay a REAL_VALUE_TYPE on them. This could be
- as many as four (32-bit HOST_WIDE_INT, 128-bit REAL_VALUE_TYPE).
+++ /dev/null
-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)
+++ /dev/null
-@@ -0,0 +1,45 @@
---- a/gcc/configure
-+++ b/gcc/configure
-@@ -29036,19 +29036,6 @@ $as_echo "#define ENABLE_DEFAULT_SSP 1"
- fi
-
-
--# Test for <sys/sdt.h> on the target.
--
--{ $as_echo "$as_me:${as_lineno-$LINENO}: checking sys/sdt.h in the target C library" >&5
--$as_echo_n "checking sys/sdt.h in the target C library... " >&6; }
--have_sys_sdt_h=no
--if test -f $target_header_dir/sys/sdt.h; then
-- have_sys_sdt_h=yes
--
--$as_echo "#define HAVE_SYS_SDT_H 1" >>confdefs.h
--
--fi
--{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_sys_sdt_h" >&5
--$as_echo "$have_sys_sdt_h" >&6; }
-
- # Check if TFmode long double should be used by default or not.
- # Some glibc targets used DFmode long double, but with glibc 2.4
---- a/gcc/configure.ac
-+++ b/gcc/configure.ac
-@@ -5787,16 +5787,6 @@ if test x$enable_default_ssp = xyes ; th
- fi
- AC_SUBST([enable_default_ssp])
-
--# Test for <sys/sdt.h> on the target.
--GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H])
--AC_MSG_CHECKING(sys/sdt.h in the target C library)
--have_sys_sdt_h=no
--if test -f $target_header_dir/sys/sdt.h; then
-- have_sys_sdt_h=yes
-- AC_DEFINE(HAVE_SYS_SDT_H, 1,
-- [Define if your target C library provides sys/sdt.h])
--fi
--AC_MSG_RESULT($have_sys_sdt_h)
-
- # Check if TFmode long double should be used by default or not.
- # Some glibc targets used DFmode long double, but with glibc 2.4
--- /dev/null
+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
+@@ -44,11 +44,6 @@ 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)
--- /dev/null
+diff -u --recursive gcc-10.3.0-vanilla/gcc/real.h gcc-10.3.0/gcc/real.h
+--- gcc-10.3.0-vanilla/gcc/real.h 2021-04-08 06:56:28.561746620 -0500
++++ gcc-10.3.0/gcc/real.h 2022-05-18 17:04:32.076412174 -0500
+@@ -77,8 +77,10 @@
+ + (REAL_VALUE_TYPE_SIZE%HOST_BITS_PER_WIDE_INT ? 1 : 0)) /* round up */
+
+ /* Verify the guess. */
++#ifndef __LP64__
+ extern char test_real_width
+ [sizeof (REAL_VALUE_TYPE) <= REAL_WIDTH * sizeof (HOST_WIDE_INT) ? 1 : -1];
++#endif
+
+ /* Calculate the format for CONST_DOUBLE. We need as many slots as
+ are necessary to overlay a REAL_VALUE_TYPE on them. This could be
--- /dev/null
+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
+@@ -3285,18 +3285,10 @@ 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)
--- /dev/null
+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
+@@ -3132,6 +3132,12 @@ 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)
--- /dev/null
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -875,7 +875,9 @@ 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
--- /dev/null
+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
+@@ -20041,7 +20041,7 @@ 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];
--- /dev/null
+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*} \
--- /dev/null
+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
+@@ -929,11 +929,12 @@ $(libgcov-driver-objects): %$(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)"; \
+@@ -957,7 +958,7 @@ 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)
+@@ -1163,6 +1164,10 @@ 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))))
--- /dev/null
+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
+@@ -91,10 +91,15 @@
+ #define MUSL_DYNAMIC_LINKER \
+ "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}%{mfdpic:-fdpic}.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)
+
--- /dev/null
+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 @@
+ "%{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
+@@ -66,6 +66,10 @@ see the files COPYING3 and COPYING.RUNTI
+ builtin_version ("CRuntime_Musl"); \
+ } 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
+@@ -62,6 +62,9 @@
+ #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}} \
+ %{static-pie:-static -pie --no-dynamic-linker -z text}"
--- /dev/null
+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
--- /dev/null
+--- a/gcc/config/rs6000/rs6000-logue.c
++++ b/gcc/config/rs6000/rs6000-logue.c
+@@ -348,7 +348,7 @@ 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;
--- /dev/null
+--- 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
+ #elif !defined(USE_TM_CLONE_REGISTRY)
+ # define USE_TM_CLONE_REGISTRY 0
+ #endif
--- /dev/null
+--- 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
--- /dev/null
+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
+@@ -107,6 +107,9 @@ static dump_flags_t original_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);
+@@ -455,6 +458,12 @@ 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;
+@@ -1168,6 +1177,47 @@ 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 (UNKNOWN_LOCATION, "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
+@@ -1590,6 +1590,9 @@ C++ ObjC++ Optimization Alias(fexception
+ fhonor-std
+ C++ ObjC++ WarnRemoved
+
++fhonour-copts
++C ObjC C++ ObjC++ RejectNegative
++
+ fhosted
+ C ObjC
+ Assume normal C execution environment.
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -1660,6 +1660,9 @@ 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/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -8171,6 +8171,17 @@ 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
+--- a/gcc/opts.c
++++ b/gcc/opts.c
+@@ -2318,6 +2318,9 @@ common_handle_option (struct gcc_options
+ /* Currently handled in a prescan. */
+ break;
+
++ case OPT_fhonour_copts:
++ break;
++
+ case OPT_Werror:
+ dc->warning_as_error_requested = value;
+ break;
--- /dev/null
+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
+@@ -9396,8 +9396,10 @@ getenv_spec_function (int argc, const ch
+ }
+
+ 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
--- /dev/null
+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
+@@ -22881,6 +22881,9 @@ mips_asm_file_end (void)
+ #define TARGET_ASM_FILE_END mips_asm_file_end
+
+
++#undef TARGET_ASM_FILE_END
++#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
++
+ struct gcc_target targetm = TARGET_INITIALIZER;
+ \f
+ #include "gt-mips.h"
+--- a/libgcc/config/mips/crti.S
++++ b/libgcc/config/mips/crti.S
+@@ -24,6 +24,10 @@ see the files COPYING3 and COPYING.RUNTI
+ /* An executable stack is *not* required for these functions. */
+ #include "gnustack.h"
+
++
++/* 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
+@@ -24,6 +24,9 @@ see the files COPYING3 and COPYING.RUNTI
+ /* An executable stack is *not* required for these functions. */
+ #include "gnustack.h"
+
++/* 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
+@@ -51,6 +51,10 @@ 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
+@@ -29,6 +29,10 @@ 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 \
--- /dev/null
+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(+)
+
+--- 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)
+--- 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)
--- /dev/null
+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(-)
+
+--- a/gotools/Makefile.am
++++ b/gotools/Makefile.am
+@@ -26,6 +26,7 @@ PWD_COMMAND = $${PWDCMD-pwd}
+ STAMP = echo timestamp >
+
+ libgodir = ../$(target_noncanonical)/libgo
++libgccdir = ../$(target_noncanonical)/libgcc
+ LIBGODEP = $(libgodir)/libgo.la
+
+ LIBGOTOOL = $(libgodir)/libgotool.a
+@@ -41,7 +42,8 @@ GOCFLAGS = $(CFLAGS_FOR_TARGET)
+ GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
+
+ AM_GOCFLAGS = -I $(libgodir)
+-AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs
++AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \
++ -L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s
+ GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@
+
+ libgosrcdir = $(srcdir)/../libgo/go
+--- a/gotools/Makefile.in
++++ b/gotools/Makefile.in
+@@ -337,6 +337,7 @@ mkinstalldirs = $(SHELL) $(toplevel_srcd
+ PWD_COMMAND = $${PWDCMD-pwd}
+ STAMP = echo timestamp >
+ libgodir = ../$(target_noncanonical)/libgo
++libgccdir = ../$(target_noncanonical)/libgcc
+ LIBGODEP = $(libgodir)/libgo.la
+ LIBGOTOOL = $(libgodir)/libgotool.a
+ @NATIVE_FALSE@GOCOMPILER = $(GOC)
+@@ -346,7 +347,8 @@ LIBGOTOOL = $(libgodir)/libgotool.a
+ GOCFLAGS = $(CFLAGS_FOR_TARGET)
+ GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
+ AM_GOCFLAGS = -I $(libgodir)
+-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 $@
+ libgosrcdir = $(srcdir)/../libgo/go
+ cmdsrcdir = $(libgosrcdir)/cmd
--- /dev/null
+From a6219e8e0719b14f474b0dcaa7bde2f4e57474f9 Mon Sep 17 00:00:00 2001
+From: Jakub Jelinek <jakub@redhat.com>
+Date: Wed, 17 Nov 2021 13:45:53 +0100
+Subject: [PATCH] ranger: Fix up fold_using_range::range_of_address [PR103255]
+
+If on &base->member the offset isn't constant or isn't zero and
+-fdelete-null-pointer-checks and not -fwrapv-pointer and base has a range
+that doesn't include NULL, we return the range of the base.
+Usually it isn't a big deal, because for most pointers we just use
+varying, range_zero and range_nonzero ranges and nothing beyond that,
+but if a pointer is initialized from a constant, we actually track the
+exact range and in that case this causes miscompilation.
+As discussed on IRC, I think doing something like:
+ offset_int off2;
+ if (off_cst && off.is_constant (&off2))
+ {
+ tree cst = wide_int_to_tree (sizetype, off2 / BITS_PER_UNIT);
+ // adjust range r with POINTER_PLUS_EXPR cst
+ if (!range_includes_zero_p (&r))
+ return true;
+ }
+ // Fallback
+ r = range_nonzero (TREE_TYPE (gimple_assign_rhs1 (stmt)));
+ return true;
+could work, given that most of the pointer ranges are just the simple ones
+perhaps it is too much for little benefit.
+
+2021-11-17 Jakub Jelinek <jakub@redhat.com>
+
+ PR tree-optimization/103255
+ * gimple-range.cc (fold_using_range::range_of_address): Return
+ range_nonzero rather than unadjusted base's range. Formatting fixes.
+
+ * gcc.c-torture/execute/pr103255.c: New test.
+
+(cherry picked from commit c39cb6bf835ca12e590eaa6f90222e51be207c50)
+---
+ gcc/gimple-range.cc | 16 +++++---
+ .../gcc.c-torture/execute/pr103255.c | 41 +++++++++++++++++++
+ 2 files changed, 52 insertions(+), 5 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.c-torture/execute/pr103255.c
+
+--- a/gcc/gimple-range.cc
++++ b/gcc/gimple-range.cc
+@@ -491,14 +491,20 @@ gimple_ranger::range_of_address (irange
+ }
+ /* If &X->a is equal to X, the range of X is the result. */
+ if (off_cst && known_eq (off, 0))
+- return true;
++ return true;
+ else if (flag_delete_null_pointer_checks
+ && !TYPE_OVERFLOW_WRAPS (TREE_TYPE (expr)))
+ {
+- /* For -fdelete-null-pointer-checks -fno-wrapv-pointer we don't
+- allow going from non-NULL pointer to NULL. */
+- if(!range_includes_zero_p (&r))
+- return true;
++ /* For -fdelete-null-pointer-checks -fno-wrapv-pointer we don't
++ allow going from non-NULL pointer to NULL. */
++ if (!range_includes_zero_p (&r))
++ {
++ /* We could here instead adjust r by off >> LOG2_BITS_PER_UNIT
++ using POINTER_PLUS_EXPR if off_cst and just fall back to
++ this. */
++ r = range_nonzero (TREE_TYPE (gimple_assign_rhs1 (stmt)));
++ return true;
++ }
+ }
+ /* If MEM_REF has a "positive" offset, consider it non-NULL
+ always, for -fdelete-null-pointer-checks also "negative"
+--- /dev/null
++++ b/gcc/testsuite/gcc.c-torture/execute/pr103255.c
+@@ -0,0 +1,41 @@
++/* PR tree-optimization/103255 */
++
++struct H
++{
++ unsigned a;
++ unsigned b;
++ unsigned c;
++};
++
++#if __SIZEOF_POINTER__ >= 4
++#define ADDR 0x400000
++#else
++#define ADDR 0x4000
++#endif
++#define OFF 0x20
++
++int
++main ()
++{
++ struct H *h = 0;
++ unsigned long o;
++ volatile int t = 1;
++
++ for (o = OFF; o <= OFF; o += 0x1000)
++ {
++ struct H *u;
++ u = (struct H *) (ADDR + o);
++ if (t)
++ {
++ h = u;
++ break;
++ }
++ }
++
++ if (h == 0)
++ return 0;
++ unsigned *tt = &h->b;
++ if ((__SIZE_TYPE__) tt != (ADDR + OFF + __builtin_offsetof (struct H, b)))
++ __builtin_abort ();
++ return 0;
++}
--- /dev/null
+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
+@@ -44,11 +44,6 @@ 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)
--- /dev/null
+--- a/gcc/real.h
++++ b/gcc/real.h
+@@ -77,8 +77,10 @@ struct GTY(()) real_value {
+ + (REAL_VALUE_TYPE_SIZE%HOST_BITS_PER_WIDE_INT ? 1 : 0)) /* round up */
+
+ /* Verify the guess. */
++#ifndef __LP64__
+ extern char test_real_width
+ [sizeof (REAL_VALUE_TYPE) <= REAL_WIDTH * sizeof (HOST_WIDE_INT) ? 1 : -1];
++#endif
+
+ /* Calculate the format for CONST_DOUBLE. We need as many slots as
+ are necessary to overlay a REAL_VALUE_TYPE on them. This could be
--- /dev/null
+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
+@@ -3355,18 +3355,10 @@ 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: $(TEXI_GCC_FILES)
--- /dev/null
+From ea650cae26da4a8fc04f0c4666f4dd776d0b5fc0 Mon Sep 17 00:00:00 2001
+From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
+Date: Sun, 14 Nov 2021 21:54:25 -0800
+Subject: [PATCH] configure: define TARGET_LIBC_GNUSTACK on musl
+
+musl only uses PT_GNU_STACK to set default thread stack size and has no
+executable stack support[0], so there is no reason not to emit the
+.note.GNU-stack section on musl builds.
+
+[0]: https://lore.kernel.org/all/20190423192534.GN23599@brightrain.aerifal.cx/T/#u
+
+gcc/ChangeLog:
+
+ * configure: Regenerate.
+ * configure.ac: define TARGET_LIBC_GNUSTACK on musl
+
+Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
+---
+ gcc/configure | 3 +++
+ gcc/configure.ac | 3 +++
+ 2 files changed, 6 insertions(+)
+
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -30954,6 +30954,9 @@ fi
+ # Check if the target LIBC handles PT_GNU_STACK.
+ gcc_cv_libc_gnustack=unknown
+ case "$target" in
++ mips*-*-linux-musl*)
++ gcc_cv_libc_gnustack=yes
++ ;;
+ mips*-*-linux*)
+
+ if test $glibc_version_major -gt 2 \
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -6788,6 +6788,9 @@ fi
+ # Check if the target LIBC handles PT_GNU_STACK.
+ gcc_cv_libc_gnustack=unknown
+ case "$target" in
++ mips*-*-linux-musl*)
++ gcc_cv_libc_gnustack=yes
++ ;;
+ mips*-*-linux*)
+ GCC_GLIBC_VERSION_GTE_IFELSE([2], [31], [gcc_cv_libc_gnustack=yes], )
+ ;;
--- /dev/null
+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
+@@ -3132,6 +3132,12 @@ 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)
--- /dev/null
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -978,7 +978,9 @@ 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
--- /dev/null
+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
+@@ -20041,7 +20041,7 @@ 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];
--- /dev/null
+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*} \
--- /dev/null
+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
+@@ -930,11 +930,12 @@ $(libgcov-driver-objects): %$(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)"; \
+@@ -958,7 +959,7 @@ 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)
+@@ -1164,6 +1165,10 @@ 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))))
--- /dev/null
+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
+@@ -91,10 +91,15 @@
+ #define MUSL_DYNAMIC_LINKER \
+ "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}%{mfdpic:-fdpic}.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)
+
--- /dev/null
+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 @@
+ "%{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
+@@ -66,6 +66,10 @@ see the files COPYING3 and COPYING.RUNTI
+ builtin_version ("CRuntime_Musl"); \
+ } 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
+@@ -62,6 +62,9 @@
+ #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}} \
+ %{static-pie:-static -pie --no-dynamic-linker -z text}"
--- /dev/null
+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
--- /dev/null
+--- a/gcc/config/rs6000/rs6000-logue.c
++++ b/gcc/config/rs6000/rs6000-logue.c
+@@ -348,7 +348,7 @@ 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;
--- /dev/null
+--- 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
+ #elif !defined(USE_TM_CLONE_REGISTRY)
+ # define USE_TM_CLONE_REGISTRY 0
+ #endif
--- /dev/null
+--- 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
--- /dev/null
+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
+@@ -107,6 +107,9 @@ static dump_flags_t original_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);
+@@ -469,6 +472,12 @@ 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;
+@@ -1196,6 +1205,47 @@ 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 (UNKNOWN_LOCATION, "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
+@@ -1663,6 +1663,9 @@ C++ ObjC++ Optimization Alias(fexception
+ fhonor-std
+ C++ ObjC++ WarnRemoved
+
++fhonour-copts
++C ObjC C++ ObjC++ RejectNegative
++
+ fhosted
+ C ObjC
+ Assume normal C execution environment.
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -1698,6 +1698,9 @@ fguess-branch-probability
+ Common 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/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -9055,6 +9055,17 @@ 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
+--- a/gcc/opts.c
++++ b/gcc/opts.c
+@@ -2448,6 +2448,9 @@ common_handle_option (struct gcc_options
+ /* Currently handled in a prescan. */
+ break;
+
++ case OPT_fhonour_copts:
++ break;
++
+ case OPT_Werror:
+ dc->warning_as_error_requested = value;
+ break;
--- /dev/null
+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
+@@ -10100,8 +10100,10 @@ getenv_spec_function (int argc, const ch
+ }
+
+ 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
--- /dev/null
+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(+)
+
+--- 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)
+--- 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)
--- /dev/null
+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(-)
+
+--- a/gotools/Makefile.am
++++ b/gotools/Makefile.am
+@@ -26,6 +26,7 @@ PWD_COMMAND = $${PWDCMD-pwd}
+ STAMP = echo timestamp >
+
+ libgodir = ../$(target_noncanonical)/libgo
++libgccdir = ../$(target_noncanonical)/libgcc
+ LIBGODEP = $(libgodir)/libgo.la
+
+ LIBGOTOOL = $(libgodir)/libgotool.a
+@@ -41,7 +42,8 @@ GOCFLAGS = $(CFLAGS_FOR_TARGET)
+ GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
+
+ AM_GOCFLAGS = -I $(libgodir)
+-AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs
++AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \
++ -L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s
+ GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@
+
+ libgosrcdir = $(srcdir)/../libgo/go
+--- a/gotools/Makefile.in
++++ b/gotools/Makefile.in
+@@ -337,6 +337,7 @@ mkinstalldirs = $(SHELL) $(toplevel_srcd
+ PWD_COMMAND = $${PWDCMD-pwd}
+ STAMP = echo timestamp >
+ libgodir = ../$(target_noncanonical)/libgo
++libgccdir = ../$(target_noncanonical)/libgcc
+ LIBGODEP = $(libgodir)/libgo.la
+ LIBGOTOOL = $(libgodir)/libgotool.a
+ @NATIVE_FALSE@GOCOMPILER = $(GOC)
+@@ -346,7 +347,8 @@ LIBGOTOOL = $(libgodir)/libgotool.a
+ GOCFLAGS = $(CFLAGS_FOR_TARGET)
+ GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
+ AM_GOCFLAGS = -I $(libgodir)
+-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 $@
+ libgosrcdir = $(srcdir)/../libgo/go
+ cmdsrcdir = $(libgosrcdir)/cmd
--- /dev/null
+commit 9c6e71079b46ad5433165feaa2001450f2017b56
+Author: Przemysław Buczkowski <prem@prem.moe>
+Date: Mon Aug 16 13:16:21 2021 +0100
+
+ GCC: Patch for Apple Silicon compatibility
+
+ This patch fixes a linker error occuring when compiling
+ the cross-compiler on macOS and ARM64 architecture.
+
+ Adapted from:
+ https://github.com/richfelker/musl-cross-make/issues/116#issuecomment-823612404
+
+ Change-Id: Ia3ee98a163bbb62689f42e2da83a5ef36beb0913
+ Reviewed-on: https://review.haiku-os.org/c/buildtools/+/4329
+ Reviewed-by: John Scipione <jscipione@gmail.com>
+ Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
+
+--- a/gcc/config/aarch64/aarch64.h
++++ b/gcc/config/aarch64/aarch64.h
+@@ -1236,7 +1236,7 @@ extern const char *aarch64_rewrite_mcpu
+ #define MCPU_TO_MARCH_SPEC_FUNCTIONS \
+ { "rewrite_mcpu", aarch64_rewrite_mcpu },
+
+-#if defined(__aarch64__)
++#if defined(__aarch64__) && ! defined(__APPLE__)
+ extern const char *host_detect_local_cpu (int argc, const char **argv);
+ #define HAVE_LOCAL_CPU_DETECT
+ # define EXTRA_SPEC_FUNCTIONS \
+--- a/gcc/config/host-darwin.c
++++ b/gcc/config/host-darwin.c
+@@ -22,6 +22,8 @@
+ #include "coretypes.h"
+ #include "diagnostic-core.h"
+ #include "config/host-darwin.h"
++#include "hosthooks.h"
++#include "hosthooks-def.h"
+
+ /* Yes, this is really supposed to work. */
+ /* This allows for a pagesize of 16384, which we have on Darwin20, but should
+@@ -79,3 +81,5 @@ darwin_gt_pch_use_address (void *addr, s
+
+ return ret;
+ }
++
++const struct host_hooks host_hooks = HOST_HOOKS_INITIALIZER;
--- /dev/null
+From: Jonathan Wakely <jwakely@redhat.com>
+Date: Fri, 7 Jan 2022 15:21:03 +0000 (+0000)
+Subject: libstdc++: Add -nostdinc++ for c++17 sources [PR100017]
+X-Git-Tag: releases/gcc-11.3.0~445
+X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=01a70ccd723eb9a479186fe37c972b0d0f8676cf
+
+libstdc++: Add -nostdinc++ for c++17 sources [PR100017]
+
+When building a build!=host compiler, the just-built gcc can't be used
+to build the target libstdc++ (because it is built for the host triplet,
+not the build triplet). The top-level configure.ac sets up the build
+flags for libstdc++ (and other "raw_cxx" libs) like this:
+
+GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
+ [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs],
+ c++)
+
+The -nostdinc++ flag is only used for the IN-TREE-TOOL, i.e. when using
+the just-built gcc/xgcc compiler. This means that the cross-compiler
+used to build libstdc++ will add its own libstdc++ headers to the
+include path. That results in the #include <cfenv> in
+src/c++17/floating_to_chars.cc and src/c++17/floating_from_chars.cc
+doing #include_next <fenv.h> and finding the libstdc++ fenv.h wrapper
+from the host compiler. Because that has the same include guard as the
+<fenv.h> in the libstdc++ we're trying to build, we never reach the
+underlying <fenv.h> from libc. That results in several errors of the
+form:
+
+error: 'fenv_t' has not been declared in '::'
+
+The most correct fix would be to add -nostdinc++ to the
+RAW_CXX_FOR_TARGET variable in configure.ac, or the
+RAW_CXX_TARGET_EXPORTS variable in Makefile.tpl.
+
+Another solution would be to make the libstdc++ <fenv.h> wrapper use
+_GLIBCXX_INCLUDE_NEXT_C_HEADERS like our <stdlib.h> and other C header
+wrappers.
+
+For now though, the simplest and safest solution is to just add
+-nostdinc++ to the CXXFLAGS used for src/c++17/*.cc, which is what this
+does.
+
+libstdc++-v3/ChangeLog:
+
+ PR libstdc++/100017
+ * src/c++17/Makefile.am (AM_CXXFLAGS): Add -nostdinc++.
+ * src/c++17/Makefile.in: Regenerate.
+
+(cherry picked from commit 4fde88e5dd152fe866a97b12e0f8229970d15cb3)
+---
+
+--- a/libstdc++-v3/src/c++17/Makefile.am
++++ b/libstdc++-v3/src/c++17/Makefile.am
+@@ -79,7 +79,7 @@ endif
+ # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
+ # as the occasion calls for it.
+ AM_CXXFLAGS = \
+- -std=gnu++17 \
++ -std=gnu++17 -nostdinc++ \
+ $(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
+ $(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
+ $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) \
+--- a/libstdc++-v3/src/c++17/Makefile.in
++++ b/libstdc++-v3/src/c++17/Makefile.in
+@@ -455,7 +455,7 @@ libc__17convenience_la_SOURCES = $(sourc
+ # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
+ # as the occasion calls for it.
+ AM_CXXFLAGS = \
+- -std=gnu++17 \
++ -std=gnu++17 -nostdinc++ \
+ $(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
+ $(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
+ $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) \
+++ /dev/null
-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)
+++ /dev/null
-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
+++ /dev/null
-From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
-Date: Wed, 22 Apr 2015 14:20:01 +0000 (+0000)
-Subject: unwind fix for musl
-X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=a2e31d0681d8a47389b8a3552622fbd9827bcef4
-
-unwind fix for musl
-
-On behalf of szabolcs.nagy@arm.com
-
-2015-04-22 Gregor Richards <gregor.richards@uwaterloo.ca>
- Szabolcs Nagy <szabolcs.nagy@arm.com>
-
- * unwind-dw2-fde-dip.c (USE_PT_GNU_EH_FRAME): Define it on
- Linux if target provides dl_iterate_phdr.
-
-
-git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222328 138bc75d-0d04-0410-961f-82ee72b054a4
----
-
---- a/libgcc/unwind-dw2-fde-dip.c
-+++ b/libgcc/unwind-dw2-fde-dip.c
-@@ -65,6 +65,12 @@
-
- #if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
- && defined(TARGET_DL_ITERATE_PHDR) \
-+ && defined(__linux__)
-+# define USE_PT_GNU_EH_FRAME
-+#endif
-+
-+#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
-+ && defined(TARGET_DL_ITERATE_PHDR) \
- && (defined(__DragonFly__) || defined(__FreeBSD__))
- # define ElfW __ElfN
- # define USE_PT_GNU_EH_FRAME
+++ /dev/null
-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];
--- /dev/null
+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)
--- /dev/null
+diff -u --recursive gcc-8.4.0-vanilla/gcc/real.h gcc-8.4.0/gcc/real.h
+--- gcc-8.4.0-vanilla/gcc/real.h 2020-03-04 02:30:01.000000000 -0600
++++ gcc-8.4.0/gcc/real.h 2022-05-18 17:02:22.708820427 -0500
+@@ -70,8 +70,10 @@
+ + (REAL_VALUE_TYPE_SIZE%HOST_BITS_PER_WIDE_INT ? 1 : 0)) /* round up */
+
+ /* Verify the guess. */
++#ifndef __LP64__
+ extern char test_real_width
+ [sizeof (REAL_VALUE_TYPE) <= REAL_WIDTH * sizeof (HOST_WIDE_INT) ? 1 : -1];
++#endif
+
+ /* Calculate the format for CONST_DOUBLE. We need as many slots as
+ are necessary to overlay a REAL_VALUE_TYPE on them. This could be
--- /dev/null
+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
+@@ -3204,18 +3204,10 @@ 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)
--- /dev/null
+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
+@@ -3102,6 +3102,12 @@ 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)
--- /dev/null
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -868,7 +868,9 @@ 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
--- /dev/null
+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
+@@ -19847,7 +19847,7 @@ 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];
--- /dev/null
+--- a/gcc/config/arm/arm.h
++++ b/gcc/config/arm/arm.h
+@@ -155,7 +155,7 @@ 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)
--- /dev/null
+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*} \
--- /dev/null
+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
+@@ -923,11 +923,12 @@ $(libgcov-driver-objects): %$(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)"; \
+@@ -948,7 +949,7 @@ 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)
+@@ -1154,6 +1155,10 @@ 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))))
--- /dev/null
+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)
+
--- /dev/null
+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}} \
+ %{static-pie:-static -pie --no-dynamic-linker -z text}"
--- /dev/null
+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
--- /dev/null
+--- a/gcc/config/rs6000/rs6000.c
++++ b/gcc/config/rs6000/rs6000.c
+@@ -24780,7 +24780,7 @@ 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;
--- /dev/null
+--- 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
--- /dev/null
+--- 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
--- /dev/null
+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
+@@ -107,6 +107,9 @@ static dump_flags_t original_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);
+@@ -459,6 +462,12 @@ 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;
+@@ -1125,6 +1134,47 @@ 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 (UNKNOWN_LOCATION, "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
+@@ -1469,6 +1469,9 @@ 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
+@@ -1551,6 +1551,9 @@ 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
+@@ -2073,6 +2073,9 @@ 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
+@@ -7013,6 +7013,17 @@ 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
--- /dev/null
+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
+@@ -9347,8 +9347,10 @@ 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
--- /dev/null
+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
+@@ -22640,6 +22640,9 @@ mips_starting_frame_offset (void)
+ #undef TARGET_STARTING_FRAME_OFFSET
+ #define TARGET_STARTING_FRAME_OFFSET mips_starting_frame_offset
+
++#undef TARGET_ASM_FILE_END
++#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
++
+ struct gcc_target targetm = TARGET_INITIALIZER;
+ \f
+ #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 \
--- /dev/null
+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(+)
+
+--- 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)
+--- 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)
--- /dev/null
+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(-)
+
+--- a/gotools/Makefile.am
++++ b/gotools/Makefile.am
+@@ -26,6 +26,7 @@ PWD_COMMAND = $${PWDCMD-pwd}
+ STAMP = echo timestamp >
+
+ libgodir = ../$(target_noncanonical)/libgo
++libgccdir = ../$(target_noncanonical)/libgcc
+ LIBGODEP = $(libgodir)/libgo.la
+
+ LIBGOTOOL = $(libgodir)/libgotool.a
+@@ -41,7 +42,8 @@ GOCFLAGS = $(CFLAGS_FOR_TARGET)
+ GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
+
+ AM_GOCFLAGS = -I $(libgodir)
+-AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs
++AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \
++ -L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s
+ GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@
+
+ libgosrcdir = $(srcdir)/../libgo/go
+--- a/gotools/Makefile.in
++++ b/gotools/Makefile.in
+@@ -263,6 +263,7 @@ mkinstalldirs = $(SHELL) $(toplevel_srcd
+ PWD_COMMAND = $${PWDCMD-pwd}
+ STAMP = echo timestamp >
+ libgodir = ../$(target_noncanonical)/libgo
++libgccdir = ../$(target_noncanonical)/libgcc
+ LIBGODEP = $(libgodir)/libgo.la
+ LIBGOTOOL = $(libgodir)/libgotool.a
+ @NATIVE_FALSE@GOCOMPILER = $(GOC)
+@@ -271,7 +272,8 @@ LIBGOTOOL = $(libgodir)/libgotool.a
+ @NATIVE_TRUE@GOCOMPILER = $(GOC_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET)
+ GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
+ AM_GOCFLAGS = -I $(libgodir)
+-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 $@
+ libgosrcdir = $(srcdir)/../libgo/go
+ cmdsrcdir = $(libgosrcdir)/cmd
+++ /dev/null
-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)
+++ /dev/null
-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*} \
+++ /dev/null
-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))))
+++ /dev/null
-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)
-
+++ /dev/null
-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}}"
-
+++ /dev/null
-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
+++ /dev/null
-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;
+++ /dev/null
-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
+++ /dev/null
-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
+++ /dev/null
-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
+++ /dev/null
-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
+++ /dev/null
-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;
- \f
- #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 \
+++ /dev/null
-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(+)
-
---- 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)
---- 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)
+++ /dev/null
-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}
+++ /dev/null
-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;
-
+++ /dev/null
-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(-)
-
---- a/gotools/Makefile.am
-+++ b/gotools/Makefile.am
-@@ -26,6 +26,7 @@ PWD_COMMAND = $${PWDCMD-pwd}
- STAMP = echo timestamp >
-
- libgodir = ../$(target_noncanonical)/libgo
-+libgccdir = ../$(target_noncanonical)/libgcc
- LIBGODEP = $(libgodir)/libgo.la
-
- if NATIVE
-@@ -38,7 +39,8 @@ endif
- GOCFLAGS = $(CFLAGS_FOR_TARGET)
- GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
-
--AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs
-+AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \
-+ -L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s
- GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@
-
- cmdsrcdir = $(srcdir)/../libgo/go/cmd
---- a/gotools/Makefile.in
-+++ b/gotools/Makefile.in
-@@ -252,13 +252,15 @@ mkinstalldirs = $(SHELL) $(toplevel_srcd
- PWD_COMMAND = $${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 = \
+++ /dev/null
---- a/libitm/beginend.cc
-+++ b/libitm/beginend.cc
-@@ -431,7 +431,7 @@ GTM::gtm_transaction_cp::save(gtm_thread
- // Save everything that we might have to restore on restarts or aborts.
- jb = tx->jb;
- undolog_size = tx->undolog.size();
-- memcpy(&alloc_actions, &tx->alloc_actions, sizeof(alloc_actions));
-+ alloc_actions = tx->alloc_actions;
- user_actions_size = tx->user_actions.size();
- id = tx->id;
- prop = tx->prop;
-@@ -449,7 +449,7 @@ GTM::gtm_transaction_cp::commit(gtm_thre
- // commits of nested transactions. Allocation actions must be committed
- // before committing the snapshot.
- tx->jb = jb;
-- memcpy(&tx->alloc_actions, &alloc_actions, sizeof(alloc_actions));
-+ tx->alloc_actions = alloc_actions;
- tx->id = id;
- tx->prop = prop;
- }
-@@ -485,7 +485,7 @@ GTM::gtm_thread::rollback (gtm_transacti
- prop = cp->prop;
- if (cp->disp != abi_disp())
- set_abi_disp(cp->disp);
-- memcpy(&alloc_actions, &cp->alloc_actions, sizeof(alloc_actions));
-+ alloc_actions = cp->alloc_actions;
- nesting = cp->nesting;
- }
- else
---- a/libitm/method-ml.cc
-+++ b/libitm/method-ml.cc
-@@ -138,7 +138,9 @@ struct ml_mg : public method_group
- // This store is only executed while holding the serial lock, so relaxed
- // memory order is sufficient here. Same holds for the memset.
- time.store(0, memory_order_relaxed);
-- memset(orecs, 0, sizeof(atomic<gtm_word>) * L2O_ORECS);
-+ void *p = orecs;
-+ memset(p, 0, sizeof(atomic<gtm_word>) * L2O_ORECS);
-+
- }
- };
-
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