[OpenWrt-Devel] [PATCH 1/3] toolchain/gcc: add GCC 8.1.0
Syrone Wong
wong.syrone at gmail.com
Thu Jun 21 20:45:29 EDT 2018
Hi,
I did some googling without testing.
There is a similar issue here[0], it's caused by an unrecognized flag,
please post the configure log related to the error message to see if
it's the case.
Other posts say gas-preprocessor is a Perl script, it seems the
interpreter is not found when configuring. We may add perl as
PKG_BUILD_DEPENDS.
[0]: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200714
Best Regards,
Syrone Wong
On Fri, Jun 22, 2018 at 8:14 AM, Rosen Penev <rosenp at gmail.com> wrote:
> On Thu, Jun 21, 2018 at 5:09 PM Syrone Wong <wong.syrone at gmail.com> wrote:
>>
>> 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.
> Added FFmpeg maintainer to CC.
>>
>>
>> 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
>> >>
>> >>
>> >> _______________________________________________
>> >> openwrt-devel mailing list
>> >> openwrt-devel at lists.openwrt.org
>> >> https://lists.openwrt.org/listinfo/openwrt-devel
_______________________________________________
openwrt-devel mailing list
openwrt-devel at lists.openwrt.org
https://lists.openwrt.org/listinfo/openwrt-devel
More information about the openwrt-devel
mailing list