[source] toolchain: add gcc 7.1.0 support
LEDE Commits
lede-commits at lists.infradead.org
Thu May 25 10:01:55 PDT 2017
nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/70c2c8ff3938d75425d544aac6a7e9966ae6a165
commit 70c2c8ff3938d75425d544aac6a7e9966ae6a165
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Thu May 4 15:18:13 2017 +0200
toolchain: add gcc 7.1.0 support
Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
toolchain/gcc/Config.in | 4 +
toolchain/gcc/Config.version | 1 +
toolchain/gcc/common.mk | 7 +-
toolchain/gcc/exclude-testsuite | 9 ++
.../7.1.0/001-revert_register_mode_search.patch | 65 ++++++++
.../gcc/patches/7.1.0/002-case_insensitive.patch | 14 ++
.../gcc/patches/7.1.0/010-documentation.patch | 23 +++
toolchain/gcc/patches/7.1.0/230-musl_libssp.patch | 13 ++
.../7.1.0/300-mips_Os_cpu_rtx_cost_model.patch | 11 ++
.../patches/7.1.0/800-arm_v5te_no_ldrd_strd.patch | 11 ++
.../patches/7.1.0/810-arm-softfloat-libgcc.patch | 25 +++
toolchain/gcc/patches/7.1.0/820-libgcc_pic.patch | 36 +++++
.../7.1.0/840-armv4_pass_fix-v4bx_to_ld.patch | 19 +++
.../gcc/patches/7.1.0/850-use_shared_libgcc.patch | 47 ++++++
.../gcc/patches/7.1.0/851-libgcc_no_compat.patch | 12 ++
.../gcc/patches/7.1.0/870-ppc_no_crtsavres.patch | 11 ++
.../gcc/patches/7.1.0/881-no_tm_section.patch | 11 ++
.../gcc/patches/7.1.0/900-bad-mips16-crt.patch | 9 ++
toolchain/gcc/patches/7.1.0/910-mbsd_multi.patch | 140 +++++++++++++++++
.../patches/7.1.0/920-specs_nonfatal_getenv.patch | 15 ++
.../patches/7.1.0/930-fix-mips-noexecstack.patch | 111 +++++++++++++
.../patches/7.1.0/940-no-clobber-stamp-bits.patch | 11 ++
.../7.1.0/950-cpp_file_path_translation.patch | 171 +++++++++++++++++++++
23 files changed, 775 insertions(+), 1 deletion(-)
diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
index b8de2d4..84f2b96 100644
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@@ -20,6 +20,10 @@ choice
bool "gcc 6.x"
depends on !arc
+ config GCC_USE_VERSION_7
+ bool "gcc 7.x"
+ depends on !arc
+
endchoice
config GCC_USE_GRAPHITE
diff --git a/toolchain/gcc/Config.version b/toolchain/gcc/Config.version
index 9ab736c..167f431 100644
--- a/toolchain/gcc/Config.version
+++ b/toolchain/gcc/Config.version
@@ -6,6 +6,7 @@ config GCC_VERSION
string
default "arc-2016.09-release" if GCC_VERSION_6_2_ARC
default "6.3.0" if GCC_USE_VERSION_6
+ default "7.1.0" if GCC_USE_VERSION_7
default "5.4.0"
config GCC_VERSION_6_2
diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk
index 47767d5..55ae1a2 100644
--- a/toolchain/gcc/common.mk
+++ b/toolchain/gcc/common.mk
@@ -36,6 +36,10 @@ ifeq ($(PKG_VERSION),6.3.0)
PKG_HASH:=f06ae7f3f790fbf0f018f6d40e844451e6bc3b7bc96e128e63b09825c1f8b29f
endif
+ifeq ($(PKG_VERSION),7.1.0)
+ PKG_HASH:=8a8136c235f64c6fef69cac0d73a46a1a09bb250776a050aec8f9fc880bebc17
+endif
+
ifneq ($(CONFIG_GCC_VERSION_6_2_ARC),)
PKG_VERSION:=6.2.1
PKG_SOURCE_URL:=https://github.com/foss-for-synopsys-dwc-arc-processors/gcc/archive/$(GCC_VERSION)
@@ -71,7 +75,8 @@ HOST_STAMP_INSTALLED:=$(HOST_BUILD_PREFIX)/stamp/.gcc_$(GCC_VARIANT)_installed
SEP:=,
TARGET_LANGUAGES:="c,c++$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)$(if $(CONFIG_INSTALL_GFORTRAN),$(SEP)fortran)$(if $(CONFIG_INSTALL_GCCGO),$(SEP)go)"
-TAR_OPTIONS += --exclude='gcc/testsuite/*' --exclude=gcc/ada/*.ad*
+TAR_OPTIONS += \
+ --exclude-from='$(CURDIR)/../exclude-testsuite' --exclude=gcc/ada/*.ad* \
ifndef CONFIG_INSTALL_LIBGCJ
TAR_OPTIONS += --exclude=libjava
diff --git a/toolchain/gcc/exclude-testsuite b/toolchain/gcc/exclude-testsuite
new file mode 100644
index 0000000..37a8f24
--- /dev/null
+++ b/toolchain/gcc/exclude-testsuite
@@ -0,0 +1,9 @@
+gcc-*/gcc/testsuite/ada
+gcc-*/gcc/testsuite/brig.dg
+gcc-*/gcc/testsuite/c-c++-common
+gcc-*/gcc/testsuite/ChangeLog*
+gcc-*/gcc/testsuite/config
+gcc-*/gcc/testsuite/g*
+gcc-*/gcc/testsuite/jit.dg
+gcc-*/gcc/testsuite/lib
+gcc-*/gcc/testsuite/o*
diff --git a/toolchain/gcc/patches/7.1.0/001-revert_register_mode_search.patch b/toolchain/gcc/patches/7.1.0/001-revert_register_mode_search.patch
new file mode 100644
index 0000000..adcc7c3
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/001-revert_register_mode_search.patch
@@ -0,0 +1,65 @@
+Revert of:
+
+commit 275035b56823b26d5fb7e90fad945b998648edf2
+Author: bergner <bergner at 138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu Sep 5 14:09:07 2013 +0000
+
+ PR target/58139
+ * reginfo.c (choose_hard_reg_mode): Scan through all mode classes
+ looking for widest mode.
+
+
+ git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202286 138bc75d-0d04-0410-961f-82ee72b054a4
+
+
+--- a/gcc/reginfo.c
++++ b/gcc/reginfo.c
+@@ -637,35 +637,40 @@ choose_hard_reg_mode (unsigned int regno
+ mode = GET_MODE_WIDER_MODE (mode))
+ if ((unsigned) hard_regno_nregs[regno][mode] == nregs
+ && HARD_REGNO_MODE_OK (regno, mode)
+- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
+- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
+ found_mode = mode;
+
++ if (found_mode != VOIDmode)
++ return found_mode;
++
+ for (mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT);
+ mode != VOIDmode;
+ mode = GET_MODE_WIDER_MODE (mode))
+ if ((unsigned) hard_regno_nregs[regno][mode] == nregs
+ && HARD_REGNO_MODE_OK (regno, mode)
+- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
+- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
+ found_mode = mode;
+
++ if (found_mode != VOIDmode)
++ return found_mode;
++
+ for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_FLOAT);
+ mode != VOIDmode;
+ mode = GET_MODE_WIDER_MODE (mode))
+ if ((unsigned) hard_regno_nregs[regno][mode] == nregs
+ && HARD_REGNO_MODE_OK (regno, mode)
+- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
+- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
+ found_mode = mode;
+
++ if (found_mode != VOIDmode)
++ return found_mode;
++
+ for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_INT);
+ mode != VOIDmode;
+ mode = GET_MODE_WIDER_MODE (mode))
+ if ((unsigned) hard_regno_nregs[regno][mode] == nregs
+ && HARD_REGNO_MODE_OK (regno, mode)
+- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
+- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
+ found_mode = mode;
+
+ if (found_mode != VOIDmode)
diff --git a/toolchain/gcc/patches/7.1.0/002-case_insensitive.patch b/toolchain/gcc/patches/7.1.0/002-case_insensitive.patch
new file mode 100644
index 0000000..b3d2dbe
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/002-case_insensitive.patch
@@ -0,0 +1,14 @@
+--- a/include/filenames.h
++++ b/include/filenames.h
+@@ -43,11 +43,6 @@ extern "C" {
+ # define IS_DIR_SEPARATOR(c) IS_DOS_DIR_SEPARATOR (c)
+ # define IS_ABSOLUTE_PATH(f) IS_DOS_ABSOLUTE_PATH (f)
+ #else /* not DOSish */
+-# if defined(__APPLE__)
+-# ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
+-# define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
+-# endif
+-# endif /* __APPLE__ */
+ # define HAS_DRIVE_SPEC(f) (0)
+ # define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c)
+ # define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f)
diff --git a/toolchain/gcc/patches/7.1.0/010-documentation.patch b/toolchain/gcc/patches/7.1.0/010-documentation.patch
new file mode 100644
index 0000000..46fe81f
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/010-documentation.patch
@@ -0,0 +1,23 @@
+--- a/gcc/Makefile.in
++++ b/gcc/Makefile.in
+@@ -3120,18 +3120,10 @@ doc/gcc.info: $(TEXI_GCC_FILES)
+ doc/gccint.info: $(TEXI_GCCINT_FILES)
+ doc/cppinternals.info: $(TEXI_CPPINT_FILES)
+
+-doc/%.info: %.texi
+- if [ x$(BUILD_INFO) = xinfo ]; then \
+- $(MAKEINFO) $(MAKEINFOFLAGS) -I . -I $(gcc_docdir) \
+- -I $(gcc_docdir)/include -o $@ $<; \
+- fi
++doc/%.info:
+
+ # Duplicate entry to handle renaming of gccinstall.info
+-doc/gccinstall.info: $(TEXI_GCCINSTALL_FILES)
+- if [ x$(BUILD_INFO) = xinfo ]; then \
+- $(MAKEINFO) $(MAKEINFOFLAGS) -I $(gcc_docdir) \
+- -I $(gcc_docdir)/include -o $@ $<; \
+- fi
++doc/gccinstall.info:
+
+ doc/cpp.dvi: $(TEXI_CPP_FILES)
+ doc/gcc.dvi: $(TEXI_GCC_FILES)
diff --git a/toolchain/gcc/patches/7.1.0/230-musl_libssp.patch b/toolchain/gcc/patches/7.1.0/230-musl_libssp.patch
new file mode 100644
index 0000000..65b5710
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/230-musl_libssp.patch
@@ -0,0 +1,13 @@
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -861,7 +861,9 @@ proper position among the other output f
+ #endif
+
+ #ifndef LINK_SSP_SPEC
+-#ifdef TARGET_LIBC_PROVIDES_SSP
++#if DEFAULT_LIBC == LIBC_MUSL
++#define LINK_SSP_SPEC "-lssp_nonshared"
++#elif defined(TARGET_LIBC_PROVIDES_SSP)
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+ "|fstack-protector-strong|fstack-protector-explicit:}"
+ #else
diff --git a/toolchain/gcc/patches/7.1.0/300-mips_Os_cpu_rtx_cost_model.patch b/toolchain/gcc/patches/7.1.0/300-mips_Os_cpu_rtx_cost_model.patch
new file mode 100644
index 0000000..21cff87
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/300-mips_Os_cpu_rtx_cost_model.patch
@@ -0,0 +1,11 @@
+--- a/gcc/config/mips/mips.c
++++ b/gcc/config/mips/mips.c
+@@ -19784,7 +19784,7 @@ mips_option_override (void)
+ flag_pcc_struct_return = 0;
+
+ /* Decide which rtx_costs structure to use. */
+- if (optimize_size)
++ if (0 && optimize_size)
+ mips_cost = &mips_rtx_cost_optimize_size;
+ else
+ mips_cost = &mips_rtx_cost_data[mips_tune];
diff --git a/toolchain/gcc/patches/7.1.0/800-arm_v5te_no_ldrd_strd.patch b/toolchain/gcc/patches/7.1.0/800-arm_v5te_no_ldrd_strd.patch
new file mode 100644
index 0000000..435f571
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/800-arm_v5te_no_ldrd_strd.patch
@@ -0,0 +1,11 @@
+--- a/gcc/config/arm/arm.h
++++ b/gcc/config/arm/arm.h
+@@ -150,7 +150,7 @@ extern tree arm_fp16_type_node;
+ /* Thumb-1 only. */
+ #define TARGET_THUMB1_ONLY (TARGET_THUMB1 && !arm_arch_notm)
+
+-#define TARGET_LDRD (arm_arch5e && ARM_DOUBLEWORD_ALIGN \
++#define TARGET_LDRD (arm_arch6 && ARM_DOUBLEWORD_ALIGN \
+ && !TARGET_THUMB1)
+
+ #define TARGET_CRC32 (arm_arch_crc)
diff --git a/toolchain/gcc/patches/7.1.0/810-arm-softfloat-libgcc.patch b/toolchain/gcc/patches/7.1.0/810-arm-softfloat-libgcc.patch
new file mode 100644
index 0000000..a437d81
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/810-arm-softfloat-libgcc.patch
@@ -0,0 +1,25 @@
+--- a/libgcc/config/arm/t-linux
++++ b/libgcc/config/arm/t-linux
+@@ -1,6 +1,10 @@
+ LIB1ASMSRC = arm/lib1funcs.S
+ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
+- _ctzsi2 _arm_addsubdf3 _arm_addsubsf3
++ _ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
++ _arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
++ _arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
++ _arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
++ _arm_fixsfsi _arm_fixunssfsi
+
+ # Just for these, we omit the frame pointer since it makes such a big
+ # difference.
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -58,8 +58,6 @@
+ %{shared:-lc} \
+ %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+
+-#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
+-
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+
+ #define LINUX_TARGET_LINK_SPEC "%{h*} \
diff --git a/toolchain/gcc/patches/7.1.0/820-libgcc_pic.patch b/toolchain/gcc/patches/7.1.0/820-libgcc_pic.patch
new file mode 100644
index 0000000..cd539d8
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/820-libgcc_pic.patch
@@ -0,0 +1,36 @@
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -920,11 +920,12 @@ $(libgcov-driver-objects): %$(objext): $
+
+ # Static libraries.
+ libgcc.a: $(libgcc-objects)
++libgcc_pic.a: $(libgcc-s-objects)
+ libgcov.a: $(libgcov-objects)
+ libunwind.a: $(libunwind-objects)
+ libgcc_eh.a: $(libgcc-eh-objects)
+
+-libgcc.a libgcov.a libunwind.a libgcc_eh.a:
++libgcc.a libgcov.a libunwind.a libgcc_eh.a libgcc_pic.a:
+ -rm -f $@
+
+ objects="$(objects)"; \
+@@ -945,7 +946,7 @@ all: libunwind.a
+ endif
+
+ ifeq ($(enable_shared),yes)
+-all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
++all: libgcc_eh.a libgcc_pic.a libgcc_s$(SHLIB_EXT)
+ ifneq ($(LIBUNWIND),)
+ all: libunwind$(SHLIB_EXT)
+ libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)
+@@ -1151,6 +1152,10 @@ install-shared:
+ chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+ $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+
++ $(INSTALL_DATA) libgcc_pic.a $(mapfile) $(DESTDIR)$(inst_libdir)/
++ chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_pic.a
++ $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_pic.a
++
+ $(subst @multilib_dir@,$(MULTIDIR),$(subst \
+ @shlib_base_name@,libgcc_s,$(subst \
+ @shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
diff --git a/toolchain/gcc/patches/7.1.0/840-armv4_pass_fix-v4bx_to_ld.patch b/toolchain/gcc/patches/7.1.0/840-armv4_pass_fix-v4bx_to_ld.patch
new file mode 100644
index 0000000..9cae1c9
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/840-armv4_pass_fix-v4bx_to_ld.patch
@@ -0,0 +1,19 @@
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -88,10 +88,15 @@
+ #define MUSL_DYNAMIC_LINKER \
+ "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
+
++/* For armv4 we pass --fix-v4bx to linker to support EABI */
++#undef TARGET_FIX_V4BX_SPEC
++#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
++ "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
++
+ /* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
+ use the GNU/Linux version, not the generic BPABI version. */
+ #undef LINK_SPEC
+-#define LINK_SPEC EABI_LINK_SPEC \
++#define LINK_SPEC EABI_LINK_SPEC TARGET_FIX_V4BX_SPEC \
+ LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC, \
+ LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
+
diff --git a/toolchain/gcc/patches/7.1.0/850-use_shared_libgcc.patch b/toolchain/gcc/patches/7.1.0/850-use_shared_libgcc.patch
new file mode 100644
index 0000000..5d09d6e
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/850-use_shared_libgcc.patch
@@ -0,0 +1,47 @@
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -126,10 +126,6 @@
+ "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} " \
+ LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
+
+-/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
+- do not use -lfloat. */
+-#undef LIBGCC_SPEC
+-
+ /* Clear the instruction cache from `beg' to `end'. This is
+ implemented in lib1funcs.S, so ensure an error if this definition
+ is used. */
+--- a/gcc/config/linux.h
++++ b/gcc/config/linux.h
+@@ -53,6 +53,10 @@ see the files COPYING3 and COPYING.RUNTI
+ builtin_assert ("system=posix"); \
+ } while (0)
+
++#ifndef LIBGCC_SPEC
++#define LIBGCC_SPEC "%{static|static-libgcc:-lgcc}%{!static:%{!static-libgcc:-lgcc_s}}"
++#endif
++
+ /* Determine which dynamic linker to use depending on whether GLIBC or
+ uClibc or Bionic or musl is the default C library and whether
+ -muclibc or -mglibc or -mbionic or -mmusl has been passed to change
+--- a/libgcc/mkmap-symver.awk
++++ b/libgcc/mkmap-symver.awk
+@@ -136,5 +136,5 @@ function output(lib) {
+ else if (inherit[lib])
+ printf("} %s;\n", inherit[lib]);
+ else
+- printf ("\n local:\n\t*;\n};\n");
++ printf ("\n\t*;\n};\n");
+ }
+--- a/gcc/config/rs6000/linux.h
++++ b/gcc/config/rs6000/linux.h
+@@ -60,6 +60,9 @@
+ #undef CPP_OS_DEFAULT_SPEC
+ #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
+
++#undef LIBGCC_SPEC
++#define LIBGCC_SPEC "%{!static:%{!static-libgcc:-lgcc_s}} -lgcc"
++
+ #undef LINK_SHLIB_SPEC
+ #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
+
diff --git a/toolchain/gcc/patches/7.1.0/851-libgcc_no_compat.patch b/toolchain/gcc/patches/7.1.0/851-libgcc_no_compat.patch
new file mode 100644
index 0000000..80c3476
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/851-libgcc_no_compat.patch
@@ -0,0 +1,12 @@
+--- a/libgcc/config/t-libunwind
++++ b/libgcc/config/t-libunwind
+@@ -2,8 +2,7 @@
+
+ HOST_LIBGCC2_CFLAGS += -DUSE_GAS_SYMVER
+
+-LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c \
+- $(srcdir)/unwind-compat.c $(srcdir)/unwind-dw2-fde-compat.c
++LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
+ LIB2ADDEHSTATIC = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
+
+ # Override the default value from t-slibgcc-elf-ver and mention -lunwind
diff --git a/toolchain/gcc/patches/7.1.0/870-ppc_no_crtsavres.patch b/toolchain/gcc/patches/7.1.0/870-ppc_no_crtsavres.patch
new file mode 100644
index 0000000..332b8b6
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/870-ppc_no_crtsavres.patch
@@ -0,0 +1,11 @@
+--- a/gcc/config/rs6000/rs6000.c
++++ b/gcc/config/rs6000/rs6000.c
+@@ -26889,7 +26889,7 @@ rs6000_savres_strategy (rs6000_stack_t *
+ /* Define cutoff for using out-of-line functions to save registers. */
+ if (DEFAULT_ABI == ABI_V4 || TARGET_ELF)
+ {
+- if (!optimize_size)
++ if (1)
+ {
+ strategy |= SAVE_INLINE_FPRS | REST_INLINE_FPRS;
+ strategy |= SAVE_INLINE_GPRS | REST_INLINE_GPRS;
diff --git a/toolchain/gcc/patches/7.1.0/881-no_tm_section.patch b/toolchain/gcc/patches/7.1.0/881-no_tm_section.patch
new file mode 100644
index 0000000..fab5db3
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/881-no_tm_section.patch
@@ -0,0 +1,11 @@
+--- a/libgcc/crtstuff.c
++++ b/libgcc/crtstuff.c
+@@ -152,7 +152,7 @@ call_ ## FUNC (void) \
+ #endif
+
+ #if !defined(USE_TM_CLONE_REGISTRY) && defined(OBJECT_FORMAT_ELF)
+-# define USE_TM_CLONE_REGISTRY 1
++# define USE_TM_CLONE_REGISTRY 0
+ #endif
+
+ /* We do not want to add the weak attribute to the declarations of these
diff --git a/toolchain/gcc/patches/7.1.0/900-bad-mips16-crt.patch b/toolchain/gcc/patches/7.1.0/900-bad-mips16-crt.patch
new file mode 100644
index 0000000..dd6e9dc
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/900-bad-mips16-crt.patch
@@ -0,0 +1,9 @@
+--- a/libgcc/config/mips/t-mips16
++++ b/libgcc/config/mips/t-mips16
+@@ -43,3 +43,6 @@ SYNC_CFLAGS = -mno-mips16
+
+ # Version these symbols if building libgcc.so.
+ SHLIB_MAPFILES += $(srcdir)/config/mips/libgcc-mips16.ver
++
++CRTSTUFF_T_CFLAGS += -mno-mips16
++CRTSTUFF_T_CFLAGS_S += -mno-mips16
diff --git a/toolchain/gcc/patches/7.1.0/910-mbsd_multi.patch b/toolchain/gcc/patches/7.1.0/910-mbsd_multi.patch
new file mode 100644
index 0000000..5b664ff
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/910-mbsd_multi.patch
@@ -0,0 +1,140 @@
+
+ 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
+@@ -1921,6 +1921,9 @@ 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
+@@ -6565,6 +6565,17 @@ This option is only supported for C and
+ @option{-Wall} and by @option{-Wpedantic}, which can be disabled with
+ @option{-Wno-pointer-sign}.
+
++ at item -fhonour-copts
++ at opindex fhonour-copts
++If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
++given at least once, and warn if it is given more than once.
++If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
++given exactly once.
++If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
++is not given exactly once.
++The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
++This flag and environment variable only affect the C language.
++
+ @item -Wstack-protector
+ @opindex Wstack-protector
+ @opindex Wno-stack-protector
+
diff --git a/toolchain/gcc/patches/7.1.0/920-specs_nonfatal_getenv.patch b/toolchain/gcc/patches/7.1.0/920-specs_nonfatal_getenv.patch
new file mode 100644
index 0000000..56dbe33
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/920-specs_nonfatal_getenv.patch
@@ -0,0 +1,15 @@
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -9277,8 +9277,10 @@ getenv_spec_function (int argc, const ch
+ value = varname;
+
+ if (!value)
+- fatal_error (input_location,
+- "environment variable %qs not defined", varname);
++ {
++ warning (input_location, "environment variable %qs not defined", varname);
++ value = "";
++ }
+
+ /* We have to escape every character of the environment variable so
+ they are not interpreted as active spec characters. A
diff --git a/toolchain/gcc/patches/7.1.0/930-fix-mips-noexecstack.patch b/toolchain/gcc/patches/7.1.0/930-fix-mips-noexecstack.patch
new file mode 100644
index 0000000..90d10f1
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/930-fix-mips-noexecstack.patch
@@ -0,0 +1,111 @@
+From da45b3fde60095756f5f6030f6012c23a3d34429 Mon Sep 17 00:00:00 2001
+From: Andrew McDonnell <bugs at 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 at 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 at mips.com
+
+
+
+2014-09-26 Steve Ellcey <sellcey at 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
+@@ -22561,6 +22561,9 @@ mips_promote_function_mode (const_tree t
+ #undef TARGET_CUSTOM_FUNCTION_DESCRIPTORS
+ #define TARGET_CUSTOM_FUNCTION_DESCRIPTORS 2
+
++#undef TARGET_ASM_FILE_END
++#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
++
+ struct gcc_target targetm = TARGET_INITIALIZER;
+
+ #include "gt-mips.h"
+--- a/libgcc/config/mips/crti.S
++++ b/libgcc/config/mips/crti.S
+@@ -21,6 +21,10 @@ a copy of the GCC Runtime Library Except
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
++
++/* An executable stack is *not* required for these functions. */
++ .section .note.GNU-stack,"",%progbits
++
+ /* 4 slots for argument spill area. 1 for cpreturn, 1 for stack.
+ Return spill offset of 40 and 20. Aligned to 16 bytes for n32. */
+
+--- a/libgcc/config/mips/crtn.S
++++ b/libgcc/config/mips/crtn.S
+@@ -21,6 +21,9 @@ a copy of the GCC Runtime Library Except
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
++/* An executable stack is *not* required for these functions. */
++ .section .note.GNU-stack,"",%progbits
++
+ /* 4 slots for argument spill area. 1 for cpreturn, 1 for stack.
+ Return spill offset of 40 and 20. Aligned to 16 bytes for n32. */
+
+--- a/libgcc/config/mips/mips16.S
++++ b/libgcc/config/mips/mips16.S
+@@ -48,6 +48,10 @@ see the files COPYING3 and COPYING.RUNTI
+ values using the soft-float calling convention, but do the actual
+ operation using the hard floating point instructions. */
+
++/* An executable stack is *not* required for these functions. */
++ .section .note.GNU-stack,"",%progbits
++ .previous
++
+ #if defined _MIPS_SIM && (_MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIO64)
+
+ /* This file contains 32-bit assembly code. */
+--- a/libgcc/config/mips/vr4120-div.S
++++ b/libgcc/config/mips/vr4120-div.S
+@@ -26,6 +26,10 @@ see the files COPYING3 and COPYING.RUNTI
+ -mfix-vr4120. div and ddiv do not give the correct result when one
+ of the operands is negative. */
+
++/* An executable stack is *not* required for these functions. */
++ .section .note.GNU-stack,"",%progbits
++ .previous
++
+ .set nomips16
+
+ #define DIV \
diff --git a/toolchain/gcc/patches/7.1.0/940-no-clobber-stamp-bits.patch b/toolchain/gcc/patches/7.1.0/940-no-clobber-stamp-bits.patch
new file mode 100644
index 0000000..9e5e599
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/940-no-clobber-stamp-bits.patch
@@ -0,0 +1,11 @@
+--- a/libstdc++-v3/include/Makefile.in
++++ b/libstdc++-v3/include/Makefile.in
+@@ -1475,7 +1475,7 @@ stamp-bits: ${bits_headers}
+ @$(STAMP) stamp-bits
+
+ stamp-bits-sup: stamp-bits ${bits_sup_headers}
+- @-cd ${bits_builddir} && $(LN_S) $? . 2>/dev/null
++ @-cd ${bits_builddir} && $(LN_S) $(filter-out stamp-bits,$?) . 2>/dev/null
+ @$(STAMP) stamp-bits-sup
+
+ stamp-c_base: ${c_base_headers}
diff --git a/toolchain/gcc/patches/7.1.0/950-cpp_file_path_translation.patch b/toolchain/gcc/patches/7.1.0/950-cpp_file_path_translation.patch
new file mode 100644
index 0000000..ac85c1d
--- /dev/null
+++ b/toolchain/gcc/patches/7.1.0/950-cpp_file_path_translation.patch
@@ -0,0 +1,171 @@
+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}.
+
++ at item -iremap @var{src}:@var{dst}
++ at 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
+@@ -11861,6 +11861,12 @@ 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.
+
++ at item -iremap @var{src}:@var{dst}
++ at 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 at 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;
+
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