[OpenWrt-Devel] [PATCH 1/3] toolchain/gcc: add GCC 8.1.0
Syrone Wong
wong.syrone at gmail.com
Thu Jun 21 20:09:18 EDT 2018
HI,
We are using FFmpeg 3.2.10, it was cut from master on 2016-10-26,
definitely has no fixes to GCC 8, you may want to check the latest
4.0.1. 4.0.1 was released on 2018-06-16. It is the latest stable
FFmpeg release from the 4.0 release branch, which was cut from master
on 2018-04-16.
You can disable FFmpeg temporarily and make sure other important
components are working as expected, e.g. kernel, busybox, procd,
firewall3, etc.
Best Regards,
Syrone Wong
On Fri, Jun 22, 2018 at 2:07 AM, Rosen Penev <rosenp at gmail.com> wrote:
> Error while compiling ffmpeg:
>
> GNU assembler not found, install/update gas-preprocessor
>
>
> On Thu, Jun 21, 2018 at 8:09 AM <wong.syrone at gmail.com> wrote:
>>
>> From: Syrone Wong <wong.syrone at gmail.com>
>>
>> Changes compared to GCC 7.x
>>
>> 001-revert_register_mode_search.patch dropped
>>
>> The commit guards comparison via maybe_gt(), while 001-revert_register_mode_search.patch simply ignore
>> "GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode)", the powerpc issue might be fixed, I'm not pretty sure.
>>
>> upstream commit: https://github.com/gcc-mirror/gcc/commit/52acb7aee19f4bb33e76819907eff343bf4f42e8
>>
>> 020-PR-libstdc-81797-Add-.NOTPARALLEL-to-include-Makefil.patch dropped due to already upstream
>>
>> 100-PR-rtl-optimization-83496.patch dropped due to already upstream
>>
>> 910-mbsd_multi.patch
>> modified to fix ambiguous overloaded inform() call error
>>
>> gcc/input.h
>> header: define UNKNOWN_LOCATION ((source_location) 0)
>>
>> - inform (0, "someone does not honour COPTS correctly, passed %d times",
>> - honour_copts);
>> + inform (UNKNOWN_LOCATION, "someone does not honour COPTS correctly, passed %d times",
>> + honour_copts);
>>
>> 940-no-clobber-stamp-bits.patch dropped due to fixed upstream by another way
>> upstream commit: https://github.com/gcc-mirror/gcc/commit/87b2d547f8ac9778d66909b8726fe967d1efbc74
>>
>> 950-cpp_file_path_translation.patch dropped, Both -fmacro-prefix-map and -ffile-prefix-map are added
>> to gcc 8.1.0, if I understand it correctly, we should use -fmacro-prefix-map
>> usage: -fmacro-prefix-map=@var{old}=@var{new}
>> upstream commit: https://github.com/gcc-mirror/gcc/commit/859b51f83662d01e4f158ea9327db9ca37fe70b3
>>
>> -iremap exists as a flag for a long time, for backward compatibility, I think we should keep the
>> variable name unchanged but change its value in rules.mk for gcc 8.x and higher.
>>
>> Compile and run tested on x86_64
>>
>> Signed-off-by: Syrone Wong <wong.syrone at gmail.com>
>> ---
>> toolchain/gcc/Config.in | 3 +
>> toolchain/gcc/Config.version | 5 +
>> toolchain/gcc/common.mk | 4 +
>> .../patches/8.1.0/002-case_insensitive.patch | 24 +++
>> .../gcc/patches/8.1.0/010-documentation.patch | 35 ++++
>> .../patches/8.1.0/110-Fix-MIPS-PR-84790.patch | 20 +++
>> .../gcc/patches/8.1.0/230-musl_libssp.patch | 13 ++
>> .../300-mips_Os_cpu_rtx_cost_model.patch | 21 +++
>> .../8.1.0/800-arm_v5te_no_ldrd_strd.patch | 11 ++
>> .../8.1.0/810-arm-softfloat-libgcc.patch | 33 ++++
>> .../gcc/patches/8.1.0/820-libgcc_pic.patch | 44 +++++
>> .../8.1.0/840-armv4_pass_fix-v4bx_to_ld.patch | 28 +++
>> .../patches/8.1.0/850-use_shared_libgcc.patch | 54 ++++++
>> .../patches/8.1.0/851-libgcc_no_compat.patch | 22 +++
>> .../patches/8.1.0/870-ppc_no_crtsavres.patch | 11 ++
>> .../gcc/patches/8.1.0/881-no_tm_section.patch | 11 ++
>> .../patches/8.1.0/900-bad-mips16-crt.patch | 9 +
>> .../gcc/patches/8.1.0/910-mbsd_multi.patch | 146 +++++++++++++++
>> .../8.1.0/920-specs_nonfatal_getenv.patch | 22 +++
>> .../8.1.0/930-fix-mips-noexecstack.patch | 111 ++++++++++++
>> ...ibffi-fix-MIPS-softfloat-build-issue.patch | 168 ++++++++++++++++++
>> ...mpilation-when-making-cross-compiler.patch | 67 +++++++
>> 22 files changed, 862 insertions(+)
>> create mode 100644 toolchain/gcc/patches/8.1.0/002-case_insensitive.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/010-documentation.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/110-Fix-MIPS-PR-84790.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/230-musl_libssp.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/300-mips_Os_cpu_rtx_cost_model.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/800-arm_v5te_no_ldrd_strd.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/810-arm-softfloat-libgcc.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/820-libgcc_pic.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/840-armv4_pass_fix-v4bx_to_ld.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/850-use_shared_libgcc.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/851-libgcc_no_compat.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/870-ppc_no_crtsavres.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/881-no_tm_section.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/900-bad-mips16-crt.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/910-mbsd_multi.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/920-specs_nonfatal_getenv.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/930-fix-mips-noexecstack.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/931-libffi-fix-MIPS-softfloat-build-issue.patch
>> create mode 100644 toolchain/gcc/patches/8.1.0/960-gotools-fix-compilation-when-making-cross-compiler.patch
>>
>> diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
>> index 37437900b1..c3208d372c 100644
>> --- a/toolchain/gcc/Config.in
>> +++ b/toolchain/gcc/Config.in
>> @@ -20,6 +20,9 @@ choice
>> bool "gcc 7.x"
>> depends on !arc
>>
>> + config GCC_USE_VERSION_8
>> + bool "gcc 8.x"
>> + depends on !arc
>> endchoice
>>
>> config GCC_USE_GRAPHITE
>> diff --git a/toolchain/gcc/Config.version b/toolchain/gcc/Config.version
>> index 616b6bbe35..97c5e50dad 100644
>> --- a/toolchain/gcc/Config.version
>> +++ b/toolchain/gcc/Config.version
>> @@ -6,8 +6,13 @@ config GCC_VERSION_5
>> default y if GCC_USE_VERSION_5
>> bool
>>
>> +config GCC_VERSION_8
>> + default y if GCC_USE_VERSION_8
>> + bool
>> +
>> config GCC_VERSION
>> string
>> default "5.5.0" if GCC_VERSION_5
>> default "arc-2017.09-release" if GCC_VERSION_7_1_ARC
>> + default "8.1.0" if GCC_VERSION_8
>> default "7.3.0"
>> diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk
>> index 1f9abb3f3e..1e17620156 100644
>> --- a/toolchain/gcc/common.mk
>> +++ b/toolchain/gcc/common.mk
>> @@ -36,6 +36,10 @@ ifeq ($(PKG_VERSION),7.3.0)
>> PKG_HASH:=832ca6ae04636adbb430e865a1451adf6979ab44ca1c8374f61fba65645ce15c
>> endif
>>
>> +ifeq ($(PKG_VERSION),8.1.0)
>> + PKG_HASH:=1d1866f992626e61349a1ccd0b8d5253816222cdc13390dcfaa74b093aa2b153
>> +endif
>> +
>> ifneq ($(CONFIG_GCC_VERSION_7_1_ARC),)
>> PKG_VERSION:=7.1.1
>> PKG_SOURCE_URL:=https://github.com/foss-for-synopsys-dwc-arc-processors/gcc/archive/$(GCC_VERSION)
>> diff --git a/toolchain/gcc/patches/8.1.0/002-case_insensitive.patch b/toolchain/gcc/patches/8.1.0/002-case_insensitive.patch
>> new file mode 100644
>> index 0000000000..3442076d7d
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/002-case_insensitive.patch
>> @@ -0,0 +1,24 @@
>> +commit 81cc26c706b2bc8c8c1eb1a322e5c5157900836e
>> +Author: Felix Fietkau <nbd at 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 at openwrt.org>
>> +
>> + SVN-Revision: 42973
>> +
>> +--- a/include/filenames.h
>> ++++ b/include/filenames.h
>> +@@ -43,11 +43,6 @@ extern "C" {
>> + # define IS_DIR_SEPARATOR(c) IS_DOS_DIR_SEPARATOR (c)
>> + # define IS_ABSOLUTE_PATH(f) IS_DOS_ABSOLUTE_PATH (f)
>> + #else /* not DOSish */
>> +-# if defined(__APPLE__)
>> +-# ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
>> +-# define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
>> +-# endif
>> +-# endif /* __APPLE__ */
>> + # define HAS_DRIVE_SPEC(f) (0)
>> + # define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c)
>> + # define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f)
>> diff --git a/toolchain/gcc/patches/8.1.0/010-documentation.patch b/toolchain/gcc/patches/8.1.0/010-documentation.patch
>> new file mode 100644
>> index 0000000000..c3a6a15901
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/010-documentation.patch
>> @@ -0,0 +1,35 @@
>> +commit 098bd91f5eae625c7d2ee621e10930fc4434e5e2
>> +Author: Luka Perkov <luka at 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 at openwrt.org>
>> +
>> + SVN-Revision: 35807
>> +
>> +--- a/gcc/Makefile.in
>> ++++ b/gcc/Makefile.in
>> +@@ -3203,18 +3203,10 @@ 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/8.1.0/110-Fix-MIPS-PR-84790.patch b/toolchain/gcc/patches/8.1.0/110-Fix-MIPS-PR-84790.patch
>> new file mode 100644
>> index 0000000000..b89eca2faf
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/110-Fix-MIPS-PR-84790.patch
>> @@ -0,0 +1,20 @@
>> +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)
>> diff --git a/toolchain/gcc/patches/8.1.0/230-musl_libssp.patch b/toolchain/gcc/patches/8.1.0/230-musl_libssp.patch
>> new file mode 100644
>> index 0000000000..b3ab79cafb
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/230-musl_libssp.patch
>> @@ -0,0 +1,13 @@
>> +--- 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
>> diff --git a/toolchain/gcc/patches/8.1.0/300-mips_Os_cpu_rtx_cost_model.patch b/toolchain/gcc/patches/8.1.0/300-mips_Os_cpu_rtx_cost_model.patch
>> new file mode 100644
>> index 0000000000..6f97356ac6
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/300-mips_Os_cpu_rtx_cost_model.patch
>> @@ -0,0 +1,21 @@
>> +commit ecf7671b769fe96f7b5134be442089f8bdba55d2
>> +Author: Felix Fietkau <nbd at 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 at nbd.name>
>> +
>> +--- a/gcc/config/mips/mips.c
>> ++++ b/gcc/config/mips/mips.c
>> +@@ -19834,7 +19834,7 @@ 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/8.1.0/800-arm_v5te_no_ldrd_strd.patch b/toolchain/gcc/patches/8.1.0/800-arm_v5te_no_ldrd_strd.patch
>> new file mode 100644
>> index 0000000000..172295f28b
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/800-arm_v5te_no_ldrd_strd.patch
>> @@ -0,0 +1,11 @@
>> +--- a/gcc/config/arm/arm.h
>> ++++ b/gcc/config/arm/arm.h
>> +@@ -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)
>> diff --git a/toolchain/gcc/patches/8.1.0/810-arm-softfloat-libgcc.patch b/toolchain/gcc/patches/8.1.0/810-arm-softfloat-libgcc.patch
>> new file mode 100644
>> index 0000000000..5c9d86aead
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/810-arm-softfloat-libgcc.patch
>> @@ -0,0 +1,33 @@
>> +commit 8570c4be394cff7282f332f97da2ff569a927ddb
>> +Author: Imre Kaloz <kaloz at openwrt.org>
>> +Date: Wed Feb 2 20:06:12 2011 +0000
>> +
>> + fixup arm soft-float symbols
>> +
>> + SVN-Revision: 25325
>> +
>> +--- a/libgcc/config/arm/t-linux
>> ++++ b/libgcc/config/arm/t-linux
>> +@@ -1,6 +1,10 @@
>> + LIB1ASMSRC = arm/lib1funcs.S
>> + LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
>> +- _ctzsi2 _arm_addsubdf3 _arm_addsubsf3
>> ++ _ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
>> ++ _arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
>> ++ _arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
>> ++ _arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
>> ++ _arm_fixsfsi _arm_fixunssfsi
>> +
>> + # Just for these, we omit the frame pointer since it makes such a big
>> + # difference.
>> +--- a/gcc/config/arm/linux-elf.h
>> ++++ b/gcc/config/arm/linux-elf.h
>> +@@ -58,8 +58,6 @@
>> + %{shared:-lc} \
>> + %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
>> +
>> +-#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
>> +-
>> + #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
>> +
>> + #define LINUX_TARGET_LINK_SPEC "%{h*} \
>> diff --git a/toolchain/gcc/patches/8.1.0/820-libgcc_pic.patch b/toolchain/gcc/patches/8.1.0/820-libgcc_pic.patch
>> new file mode 100644
>> index 0000000000..1a9678d480
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/820-libgcc_pic.patch
>> @@ -0,0 +1,44 @@
>> +commit c96312958c0621e72c9b32da5bc224ffe2161384
>> +Author: Felix Fietkau <nbd at 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))))
>> diff --git a/toolchain/gcc/patches/8.1.0/840-armv4_pass_fix-v4bx_to_ld.patch b/toolchain/gcc/patches/8.1.0/840-armv4_pass_fix-v4bx_to_ld.patch
>> new file mode 100644
>> index 0000000000..b9c9b161ad
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/840-armv4_pass_fix-v4bx_to_ld.patch
>> @@ -0,0 +1,28 @@
>> +commit 7edc8ca5456d9743dd0075eb3cc5b04f4f24c8cc
>> +Author: Imre Kaloz <kaloz at openwrt.org>
>> +Date: Wed Feb 2 19:34:36 2011 +0000
>> +
>> + add armv4 fixup patches
>> +
>> + SVN-Revision: 25322
>> +
>> +
>> +--- a/gcc/config/arm/linux-eabi.h
>> ++++ b/gcc/config/arm/linux-eabi.h
>> +@@ -88,10 +88,15 @@
>> + #define MUSL_DYNAMIC_LINKER \
>> + "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
>> +
>> ++/* For armv4 we pass --fix-v4bx to linker to support EABI */
>> ++#undef TARGET_FIX_V4BX_SPEC
>> ++#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
>> ++ "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
>> ++
>> + /* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
>> + use the GNU/Linux version, not the generic BPABI version. */
>> + #undef LINK_SPEC
>> +-#define LINK_SPEC EABI_LINK_SPEC \
>> ++#define LINK_SPEC EABI_LINK_SPEC TARGET_FIX_V4BX_SPEC \
>> + LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC, \
>> + LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
>> +
>> diff --git a/toolchain/gcc/patches/8.1.0/850-use_shared_libgcc.patch b/toolchain/gcc/patches/8.1.0/850-use_shared_libgcc.patch
>> new file mode 100644
>> index 0000000000..f619f0e6a1
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/850-use_shared_libgcc.patch
>> @@ -0,0 +1,54 @@
>> +commit dcfc40358b5a3cae7320c17f8d1cebd5ad5540cd
>> +Author: Felix Fietkau <nbd at 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}"
>> diff --git a/toolchain/gcc/patches/8.1.0/851-libgcc_no_compat.patch b/toolchain/gcc/patches/8.1.0/851-libgcc_no_compat.patch
>> new file mode 100644
>> index 0000000000..d710e40717
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/851-libgcc_no_compat.patch
>> @@ -0,0 +1,22 @@
>> +commit 64661de100da1ec1061ef3e5e400285dce115e6b
>> +Author: Felix Fietkau <nbd at openwrt.org>
>> +Date: Sun May 10 13:16:35 2015 +0000
>> +
>> + gcc: add some size optimization patches
>> +
>> + Signed-off-by: Felix Fietkau <nbd at openwrt.org>
>> +
>> + SVN-Revision: 45664
>> +
>> +--- a/libgcc/config/t-libunwind
>> ++++ b/libgcc/config/t-libunwind
>> +@@ -2,8 +2,7 @@
>> +
>> + HOST_LIBGCC2_CFLAGS += -DUSE_GAS_SYMVER
>> +
>> +-LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c \
>> +- $(srcdir)/unwind-compat.c $(srcdir)/unwind-dw2-fde-compat.c
>> ++LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
>> + LIB2ADDEHSTATIC = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
>> +
>> + # Override the default value from t-slibgcc-elf-ver and mention -lunwind
>> diff --git a/toolchain/gcc/patches/8.1.0/870-ppc_no_crtsavres.patch b/toolchain/gcc/patches/8.1.0/870-ppc_no_crtsavres.patch
>> new file mode 100644
>> index 0000000000..a73081493b
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/870-ppc_no_crtsavres.patch
>> @@ -0,0 +1,11 @@
>> +--- a/gcc/config/rs6000/rs6000.c
>> ++++ b/gcc/config/rs6000/rs6000.c
>> +@@ -24424,7 +24424,7 @@ 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/8.1.0/881-no_tm_section.patch b/toolchain/gcc/patches/8.1.0/881-no_tm_section.patch
>> new file mode 100644
>> index 0000000000..fab5db3be5
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/881-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/8.1.0/900-bad-mips16-crt.patch b/toolchain/gcc/patches/8.1.0/900-bad-mips16-crt.patch
>> new file mode 100644
>> index 0000000000..dd6e9dc889
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/900-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/8.1.0/910-mbsd_multi.patch b/toolchain/gcc/patches/8.1.0/910-mbsd_multi.patch
>> new file mode 100644
>> index 0000000000..83d41f2f1a
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/910-mbsd_multi.patch
>> @@ -0,0 +1,146 @@
>> +commit 99368862e44740ff4fd33760893f04e14f9dbdf1
>> +Author: Felix Fietkau <nbd at 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);
>> +@@ -461,6 +464,12 @@ 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;
>> +@@ -1110,6 +1119,47 @@ 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
>> +@@ -1547,6 +1547,9 @@ 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
>> +@@ -2056,6 +2056,9 @@ 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
>> +@@ -7005,6 +7005,17 @@ 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/8.1.0/920-specs_nonfatal_getenv.patch b/toolchain/gcc/patches/8.1.0/920-specs_nonfatal_getenv.patch
>> new file mode 100644
>> index 0000000000..c3836e63af
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/920-specs_nonfatal_getenv.patch
>> @@ -0,0 +1,22 @@
>> +Author: Jo-Philipp Wich <jow at 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
>> diff --git a/toolchain/gcc/patches/8.1.0/930-fix-mips-noexecstack.patch b/toolchain/gcc/patches/8.1.0/930-fix-mips-noexecstack.patch
>> new file mode 100644
>> index 0000000000..706d67f7c9
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/930-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
>> +@@ -22627,6 +22627,9 @@ 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;
>> +
>> + #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/8.1.0/931-libffi-fix-MIPS-softfloat-build-issue.patch b/toolchain/gcc/patches/8.1.0/931-libffi-fix-MIPS-softfloat-build-issue.patch
>> new file mode 100644
>> index 0000000000..fb4cb1533a
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/931-libffi-fix-MIPS-softfloat-build-issue.patch
>> @@ -0,0 +1,168 @@
>> +From c0c62fa4256f805389f16ebfc4a60cf789129b50 Mon Sep 17 00:00:00 2001
>> +From: BangLang Huang <banglang.huang at 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 at foxmail.com>
>> +Signed-off-by: Yousong Zhou <yszhou4tech at 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)
>> diff --git a/toolchain/gcc/patches/8.1.0/960-gotools-fix-compilation-when-making-cross-compiler.patch b/toolchain/gcc/patches/8.1.0/960-gotools-fix-compilation-when-making-cross-compiler.patch
>> new file mode 100644
>> index 0000000000..1dd05080d3
>> --- /dev/null
>> +++ b/toolchain/gcc/patches/8.1.0/960-gotools-fix-compilation-when-making-cross-compiler.patch
>> @@ -0,0 +1,67 @@
>> +From dda6b050cd74a352670787a294596a9c56c21327 Mon Sep 17 00:00:00 2001
>> +From: Yousong Zhou <yszhou4tech at 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 at GOCOMPILER = $(GOC)
>> +@@ -271,7 +272,8 @@ LIBGOTOOL = $(libgodir)/libgotool.a
>> + @NATIVE_TRUE at 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
>> --
>> 2.17.1
>>
>>
>> _______________________________________________
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>> openwrt-devel at lists.openwrt.org
>> https://lists.openwrt.org/listinfo/openwrt-devel
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