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toolchain/gcc: add GCC 8.1.0

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Changes compared to GCC 7.x

001-revert_register_mode_search.patch dropped

The underlying issue is described at the end of
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58139

It is fixed by the upstream commit:
3fa2798aa8

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: 87b2d547f8

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: 859b51f836

-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@gmail.com>
This commit is contained in:
Syrone Wong 2018-06-21 23:08:10 +08:00 committed by Felix Fietkau
parent 7ad20678e5
commit 139f99c058
22 changed files with 862 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
toolchain/gcc/Config.in
View file

@ -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

5
toolchain/gcc/Config.version
View file

@ -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"

4
toolchain/gcc/common.mk
View file

@ -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)

24
toolchain/gcc/patches/8.1.0/002-case_insensitive.patch Normal file
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@ -0,0 +1,24 @@
commit 81cc26c706b2bc8c8c1eb1a322e5c5157900836e
Author: Felix Fietkau <nbd@openwrt.org>
Date: Sun Oct 19 21:45:51 2014 +0000
gcc: do not assume that the Mac OS X filesystem is case insensitive
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 42973
--- a/include/filenames.h
+++ b/include/filenames.h
@@ -43,11 +43,6 @@ extern "C" {
# define IS_DIR_SEPARATOR(c) IS_DOS_DIR_SEPARATOR (c)
# define IS_ABSOLUTE_PATH(f) IS_DOS_ABSOLUTE_PATH (f)
#else /* not DOSish */
-# if defined(__APPLE__)
-# ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
-# define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
-# endif
-# endif /* __APPLE__ */
# define HAS_DRIVE_SPEC(f) (0)
# define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c)
# define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f)

35
toolchain/gcc/patches/8.1.0/010-documentation.patch Normal file
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@ -0,0 +1,35 @@
commit 098bd91f5eae625c7d2ee621e10930fc4434e5e2
Author: Luka Perkov <luka@openwrt.org>
Date: Tue Feb 26 16:16:33 2013 +0000
gcc: don't build documentation
This closes #13039.
Signed-off-by: Luka Perkov <luka@openwrt.org>
SVN-Revision: 35807
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -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)

20
toolchain/gcc/patches/8.1.0/110-Fix-MIPS-PR-84790.patch Normal file
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@ -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)

13
toolchain/gcc/patches/8.1.0/230-musl_libssp.patch Normal file
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@ -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

21
toolchain/gcc/patches/8.1.0/300-mips_Os_cpu_rtx_cost_model.patch Normal file
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@ -0,0 +1,21 @@
commit ecf7671b769fe96f7b5134be442089f8bdba55d2
Author: Felix Fietkau <nbd@nbd.name>
Date: Thu Aug 4 20:29:45 2016 +0200
gcc: add a patch to generate better code with Os on mips
Also happens to reduce compressed code size a bit
Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -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];

11
toolchain/gcc/patches/8.1.0/800-arm_v5te_no_ldrd_strd.patch Normal file
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@ -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)

33
toolchain/gcc/patches/8.1.0/810-arm-softfloat-libgcc.patch Normal file
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@ -0,0 +1,33 @@
commit 8570c4be394cff7282f332f97da2ff569a927ddb
Author: Imre Kaloz <kaloz@openwrt.org>
Date: Wed Feb 2 20:06:12 2011 +0000
fixup arm soft-float symbols
SVN-Revision: 25325
--- a/libgcc/config/arm/t-linux
+++ b/libgcc/config/arm/t-linux
@@ -1,6 +1,10 @@
LIB1ASMSRC = arm/lib1funcs.S
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
- _ctzsi2 _arm_addsubdf3 _arm_addsubsf3
+ _ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
+ _arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
+ _arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
+ _arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
+ _arm_fixsfsi _arm_fixunssfsi
# Just for these, we omit the frame pointer since it makes such a big
# difference.
--- a/gcc/config/arm/linux-elf.h
+++ b/gcc/config/arm/linux-elf.h
@@ -58,8 +58,6 @@
%{shared:-lc} \
%{!shared:%{profile:-lc_p}%{!profile:-lc}}"
-#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
-
#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
#define LINUX_TARGET_LINK_SPEC "%{h*} \

44
toolchain/gcc/patches/8.1.0/820-libgcc_pic.patch Normal file
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@ -0,0 +1,44 @@
commit c96312958c0621e72c9b32da5bc224ffe2161384
Author: Felix Fietkau <nbd@openwrt.org>
Date: Mon Oct 19 23:26:09 2009 +0000
gcc: create a proper libgcc_pic.a static library for relinking (4.3.3+ for now, backport will follow)
SVN-Revision: 18086
--- a/libgcc/Makefile.in
+++ b/libgcc/Makefile.in
@@ -923,11 +923,12 @@ $(libgcov-driver-objects): %$(objext): $
# Static libraries.
libgcc.a: $(libgcc-objects)
+libgcc_pic.a: $(libgcc-s-objects)
libgcov.a: $(libgcov-objects)
libunwind.a: $(libunwind-objects)
libgcc_eh.a: $(libgcc-eh-objects)
-libgcc.a libgcov.a libunwind.a libgcc_eh.a:
+libgcc.a libgcov.a libunwind.a libgcc_eh.a libgcc_pic.a:
-rm -f $@
objects="$(objects)"; \
@@ -948,7 +949,7 @@ all: libunwind.a
endif
ifeq ($(enable_shared),yes)
-all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
+all: libgcc_eh.a libgcc_pic.a libgcc_s$(SHLIB_EXT)
ifneq ($(LIBUNWIND),)
all: libunwind$(SHLIB_EXT)
libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)
@@ -1154,6 +1155,10 @@ install-shared:
chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+ $(INSTALL_DATA) libgcc_pic.a $(mapfile) $(DESTDIR)$(inst_libdir)/
+ chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_pic.a
+ $(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_pic.a
+
$(subst @multilib_dir@,$(MULTIDIR),$(subst \
@shlib_base_name@,libgcc_s,$(subst \
@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))

28
toolchain/gcc/patches/8.1.0/840-armv4_pass_fix-v4bx_to_ld.patch Normal file
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@ -0,0 +1,28 @@
commit 7edc8ca5456d9743dd0075eb3cc5b04f4f24c8cc
Author: Imre Kaloz <kaloz@openwrt.org>
Date: Wed Feb 2 19:34:36 2011 +0000
add armv4 fixup patches
SVN-Revision: 25322
--- a/gcc/config/arm/linux-eabi.h
+++ b/gcc/config/arm/linux-eabi.h
@@ -88,10 +88,15 @@
#define MUSL_DYNAMIC_LINKER \
"/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
+/* For armv4 we pass --fix-v4bx to linker to support EABI */
+#undef TARGET_FIX_V4BX_SPEC
+#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
+ "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
+
/* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
use the GNU/Linux version, not the generic BPABI version. */
#undef LINK_SPEC
-#define LINK_SPEC EABI_LINK_SPEC \
+#define LINK_SPEC EABI_LINK_SPEC TARGET_FIX_V4BX_SPEC \
LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC, \
LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)

54
toolchain/gcc/patches/8.1.0/850-use_shared_libgcc.patch Normal file
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@ -0,0 +1,54 @@
commit dcfc40358b5a3cae7320c17f8d1cebd5ad5540cd
Author: Felix Fietkau <nbd@openwrt.org>
Date: Sun Feb 12 20:25:47 2012 +0000
gcc 4.6: port over the missing patch 850-use_shared_libgcc.patch to prevent libgcc crap from leaking into every single binary
SVN-Revision: 30486
--- a/gcc/config/arm/linux-eabi.h
+++ b/gcc/config/arm/linux-eabi.h
@@ -126,10 +126,6 @@
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} " \
LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
-/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
- do not use -lfloat. */
-#undef LIBGCC_SPEC
-
/* Clear the instruction cache from `beg' to `end'. This is
implemented in lib1funcs.S, so ensure an error if this definition
is used. */
--- a/gcc/config/linux.h
+++ b/gcc/config/linux.h
@@ -53,6 +53,10 @@ see the files COPYING3 and COPYING.RUNTI
builtin_assert ("system=posix"); \
} while (0)
+#ifndef LIBGCC_SPEC
+#define LIBGCC_SPEC "%{static|static-libgcc:-lgcc}%{!static:%{!static-libgcc:-lgcc_s}}"
+#endif
+
/* Determine which dynamic linker to use depending on whether GLIBC or
uClibc or Bionic or musl is the default C library and whether
-muclibc or -mglibc or -mbionic or -mmusl has been passed to change
--- a/libgcc/mkmap-symver.awk
+++ b/libgcc/mkmap-symver.awk
@@ -136,5 +136,5 @@ function output(lib) {
else if (inherit[lib])
printf("} %s;\n", inherit[lib]);
else
- printf ("\n local:\n\t*;\n};\n");
+ printf ("\n\t*;\n};\n");
}
--- a/gcc/config/rs6000/linux.h
+++ b/gcc/config/rs6000/linux.h
@@ -60,6 +60,9 @@
#undef CPP_OS_DEFAULT_SPEC
#define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
+#undef LIBGCC_SPEC
+#define LIBGCC_SPEC "%{!static:%{!static-libgcc:-lgcc_s}} -lgcc"
+
#undef LINK_SHLIB_SPEC
#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}} \
%{static-pie:-static -pie --no-dynamic-linker -z text}"

22
toolchain/gcc/patches/8.1.0/851-libgcc_no_compat.patch Normal file
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@ -0,0 +1,22 @@
commit 64661de100da1ec1061ef3e5e400285dce115e6b
Author: Felix Fietkau <nbd@openwrt.org>
Date: Sun May 10 13:16:35 2015 +0000
gcc: add some size optimization patches
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 45664
--- a/libgcc/config/t-libunwind
+++ b/libgcc/config/t-libunwind
@@ -2,8 +2,7 @@
HOST_LIBGCC2_CFLAGS += -DUSE_GAS_SYMVER
-LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c \
- $(srcdir)/unwind-compat.c $(srcdir)/unwind-dw2-fde-compat.c
+LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
LIB2ADDEHSTATIC = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
# Override the default value from t-slibgcc-elf-ver and mention -lunwind

11
toolchain/gcc/patches/8.1.0/870-ppc_no_crtsavres.patch Normal file
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@ -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;

11
toolchain/gcc/patches/8.1.0/881-no_tm_section.patch Normal file
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@ -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

9
toolchain/gcc/patches/8.1.0/900-bad-mips16-crt.patch Normal file
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@ -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

146
toolchain/gcc/patches/8.1.0/910-mbsd_multi.patch Normal file
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@ -0,0 +1,146 @@
commit 99368862e44740ff4fd33760893f04e14f9dbdf1
Author: Felix Fietkau <nbd@openwrt.org>
Date: Tue Jul 31 00:52:27 2007 +0000
Port the mbsd_multi patch from freewrt, which adds -fhonour-copts. This will emit warnings in packages that don't use our target cflags properly
SVN-Revision: 8256
This patch brings over a feature from MirBSD:
* -fhonour-copts
If this option is not given, it's warned (depending
on environment variables). This is to catch errors
of misbuilt packages which override CFLAGS themselves.
This patch was authored by Thorsten Glaser <tg at mirbsd.de>
with copyright assignment to the FSF in effect.
--- a/gcc/c-family/c-opts.c
+++ b/gcc/c-family/c-opts.c
@@ -107,6 +107,9 @@ static dump_flags_t original_dump_flags;
/* Whether any standard preincluded header has been preincluded. */
static bool done_preinclude;
+/* Check if a port honours COPTS. */
+static int honour_copts = 0;
+
static void handle_OPT_d (const char *);
static void set_std_cxx98 (int);
static void set_std_cxx11 (int);
@@ -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}.
+@item -fhonour-copts
+@opindex fhonour-copts
+If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
+given at least once, and warn if it is given more than once.
+If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
+given exactly once.
+If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
+is not given exactly once.
+The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
+This flag and environment variable only affect the C language.
+
@item -Wstack-protector
@opindex Wstack-protector
@opindex Wno-stack-protector

22
toolchain/gcc/patches/8.1.0/920-specs_nonfatal_getenv.patch Normal file
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@ -0,0 +1,22 @@
Author: Jo-Philipp Wich <jow@openwrt.org>
Date: Sat Apr 21 03:02:39 2012 +0000
gcc: add patch to make the getenv() spec function nonfatal if requested environment variable is unset
SVN-Revision: 31390
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -9347,8 +9347,10 @@ getenv_spec_function (int argc, const ch
value = varname;
if (!value)
- fatal_error (input_location,
- "environment variable %qs not defined", varname);
+ {
+ warning (input_location, "environment variable %qs not defined", varname);
+ value = "";
+ }
/* We have to escape every character of the environment variable so
they are not interpreted as active spec characters. A

111
toolchain/gcc/patches/8.1.0/930-fix-mips-noexecstack.patch Normal file
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@ -0,0 +1,111 @@
From da45b3fde60095756f5f6030f6012c23a3d34429 Mon Sep 17 00:00:00 2001
From: Andrew McDonnell <bugs@andrewmcdonnell.net>
Date: Fri, 3 Oct 2014 19:09:00 +0930
Subject: Add .note.GNU-stack section
See http://lists.busybox.net/pipermail/uclibc/2014-October/048671.html
Below copied from https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02430.html
Re: [Patch, MIPS] Add .note.GNU-stack section
From: Steve Ellcey <sellcey at mips dot com>
On Wed, 2014-09-10 at 10:15 -0700, Eric Christopher wrote:
>
>
> On Wed, Sep 10, 2014 at 9:27 AM, <pinskia@gmail.com> wrote:
> This works except you did not update the assembly files in
> libgcc or glibc. We (Cavium) have the same patch in our tree
> for a few released versions.
> Mind just checking yours in then Andrew?
> Thanks!
> -eric
I talked to Andrew about what files he changed in GCC and created and
tested this new patch. Andrew also mentioned changing some assembly
files in glibc but I don't see any use of '.section .note.GNU-stack' in
any assembly files in glibc (for any platform) so I wasn't planning on
creating a glibc to add them to mips glibc assembly language files.
OK to check in this patch?
Steve Ellcey
sellcey@mips.com
2014-09-26 Steve Ellcey <sellcey@mips.com>
---
gcc/config/mips/mips.c | 3 +++
libgcc/config/mips/crti.S | 4 ++++
libgcc/config/mips/crtn.S | 3 +++
libgcc/config/mips/mips16.S | 4 ++++
libgcc/config/mips/vr4120-div.S | 4 ++++
5 files changed, 18 insertions(+)
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -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 \

168
toolchain/gcc/patches/8.1.0/931-libffi-fix-MIPS-softfloat-build-issue.patch Normal file
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@ -0,0 +1,168 @@
From c0c62fa4256f805389f16ebfc4a60cf789129b50 Mon Sep 17 00:00:00 2001
From: BangLang Huang <banglang.huang@foxmail.com>
Date: Wed, 9 Nov 2016 10:36:49 +0800
Subject: [PATCH] libffi: fix MIPS softfloat build issue
Backported from github.com/libffi/libffi#272
Signed-off-by: BangLang Huang <banglang.huang@foxmail.com>
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
---
libffi/src/mips/n32.S | 17 +++++++++++++++++
libffi/src/mips/o32.S | 17 +++++++++++++++++
2 files changed, 34 insertions(+)
--- a/libffi/src/mips/n32.S
+++ b/libffi/src/mips/n32.S
@@ -107,6 +107,16 @@ loadregs:
REG_L t6, 3*FFI_SIZEOF_ARG($fp) # load the flags word into t6.
+#ifdef __mips_soft_float
+ REG_L a0, 0*FFI_SIZEOF_ARG(t9)
+ REG_L a1, 1*FFI_SIZEOF_ARG(t9)
+ REG_L a2, 2*FFI_SIZEOF_ARG(t9)
+ REG_L a3, 3*FFI_SIZEOF_ARG(t9)
+ REG_L a4, 4*FFI_SIZEOF_ARG(t9)
+ REG_L a5, 5*FFI_SIZEOF_ARG(t9)
+ REG_L a6, 6*FFI_SIZEOF_ARG(t9)
+ REG_L a7, 7*FFI_SIZEOF_ARG(t9)
+#else
and t4, t6, ((1<<FFI_FLAG_BITS)-1)
REG_L a0, 0*FFI_SIZEOF_ARG(t9)
beqz t4, arg1_next
@@ -193,6 +203,7 @@ arg7_next:
arg8_doublep:
l.d $f19, 7*FFI_SIZEOF_ARG(t9)
arg8_next:
+#endif
callit:
# Load the function pointer
@@ -214,6 +225,7 @@ retint:
b epilogue
retfloat:
+#ifndef __mips_soft_float
bne t6, FFI_TYPE_FLOAT, retdouble
jal t9
REG_L t4, 4*FFI_SIZEOF_ARG($fp)
@@ -272,6 +284,7 @@ retstruct_f_d:
s.s $f0, 0(t4)
s.d $f2, 8(t4)
b epilogue
+#endif
retstruct_d_soft:
bne t6, FFI_TYPE_STRUCT_D_SOFT, retstruct_f_soft
@@ -429,6 +442,7 @@ ffi_closure_N32:
REG_S a6, A6_OFF2($sp)
REG_S a7, A7_OFF2($sp)
+#ifndef __mips_soft_float
# Store all possible float/double registers.
s.d $f12, F12_OFF2($sp)
s.d $f13, F13_OFF2($sp)
@@ -438,6 +452,7 @@ ffi_closure_N32:
s.d $f17, F17_OFF2($sp)
s.d $f18, F18_OFF2($sp)
s.d $f19, F19_OFF2($sp)
+#endif
# Call ffi_closure_mips_inner_N32 to do the real work.
LA t9, ffi_closure_mips_inner_N32
@@ -458,6 +473,7 @@ cls_retint:
b cls_epilogue
cls_retfloat:
+#ifndef __mips_soft_float
bne v0, FFI_TYPE_FLOAT, cls_retdouble
l.s $f0, V0_OFF2($sp)
b cls_epilogue
@@ -500,6 +516,7 @@ cls_retstruct_f_d:
l.s $f0, V0_OFF2($sp)
l.d $f2, V1_OFF2($sp)
b cls_epilogue
+#endif
cls_retstruct_small2:
REG_L v0, V0_OFF2($sp)
--- a/libffi/src/mips/o32.S
+++ b/libffi/src/mips/o32.S
@@ -82,13 +82,16 @@ sixteen:
ADDU $sp, 4 * FFI_SIZEOF_ARG # adjust $sp to new args
+#ifndef __mips_soft_float
bnez t0, pass_d # make it quick for int
+#endif
REG_L a0, 0*FFI_SIZEOF_ARG($sp) # just go ahead and load the
REG_L a1, 1*FFI_SIZEOF_ARG($sp) # four regs.
REG_L a2, 2*FFI_SIZEOF_ARG($sp)
REG_L a3, 3*FFI_SIZEOF_ARG($sp)
b call_it
+#ifndef __mips_soft_float
pass_d:
bne t0, FFI_ARGS_D, pass_f
l.d $f12, 0*FFI_SIZEOF_ARG($sp) # load $fp regs from args
@@ -130,6 +133,7 @@ pass_f_d:
# bne t0, FFI_ARGS_F_D, call_it
l.s $f12, 0*FFI_SIZEOF_ARG($sp) # load $fp regs from args
l.d $f14, 2*FFI_SIZEOF_ARG($sp) # passing double and float
+#endif
call_it:
# Load the function pointer
@@ -158,14 +162,23 @@ retfloat:
bne t2, FFI_TYPE_FLOAT, retdouble
jalr t9
REG_L t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
+#ifndef __mips_soft_float
s.s $f0, 0(t0)
+#else
+ REG_S v0, 0(t0)
+#endif
b epilogue
retdouble:
bne t2, FFI_TYPE_DOUBLE, noretval
jalr t9
REG_L t0, SIZEOF_FRAME + 4*FFI_SIZEOF_ARG($fp)
+#ifndef __mips_soft_float
s.d $f0, 0(t0)
+#else
+ REG_S v1, 4(t0)
+ REG_S v0, 0(t0)
+#endif
b epilogue
noretval:
@@ -261,9 +274,11 @@ $LCFI7:
li $13, 1 # FFI_O32
bne $16, $13, 1f # Skip fp save if FFI_O32_SOFT_FLOAT
+#ifndef __mips_soft_float
# Store all possible float/double registers.
s.d $f12, FA_0_0_OFF2($fp)
s.d $f14, FA_1_0_OFF2($fp)
+#endif
1:
# Call ffi_closure_mips_inner_O32 to do the work.
la t9, ffi_closure_mips_inner_O32
@@ -281,6 +296,7 @@ $LCFI7:
li $13, 1 # FFI_O32
bne $16, $13, 1f # Skip fp restore if FFI_O32_SOFT_FLOAT
+#ifndef __mips_soft_float
li $9, FFI_TYPE_FLOAT
l.s $f0, V0_OFF2($fp)
beq $8, $9, closure_done
@@ -288,6 +304,7 @@ $LCFI7:
li $9, FFI_TYPE_DOUBLE
l.d $f0, V0_OFF2($fp)
beq $8, $9, closure_done
+#endif
1:
REG_L $3, V1_OFF2($fp)
REG_L $2, V0_OFF2($fp)

67
toolchain/gcc/patches/8.1.0/960-gotools-fix-compilation-when-making-cross-compiler.patch Normal file
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@ -0,0 +1,67 @@
From dda6b050cd74a352670787a294596a9c56c21327 Mon Sep 17 00:00:00 2001
From: Yousong Zhou <yszhou4tech@gmail.com>
Date: Fri, 4 May 2018 18:20:53 +0800
Subject: [PATCH] gotools: fix compilation when making cross compiler
libgo is "the runtime support library for the Go programming language.
This library is intended for use with the Go frontend."
gccgo will link target files with libgo.so which depends on libgcc_s.so.1, but
the linker will complain that it cannot find it. That's because shared libgcc
is not present in the install directory yet. libgo.so was made without problem
because gcc will emit -lgcc_s when compiled with -shared option. When gotools
were being made, it was supplied with -static-libgcc thus no link option was
provided. Check LIBGO in gcc/go/gcc-spec.c for how gccgo make a builtin spec
for linking with libgo.so
- GccgoCrossCompilation, https://github.com/golang/go/wiki/GccgoCrossCompilation
- Cross-building instructions, http://www.eglibc.org/archives/patches/msg00078.html
When 3-pass GCC compilation is used, shared libgcc runtime libraries will be
available after gcc pass2 completed and will meet the gotools link requirement
at gcc pass3
---
gotools/Makefile.am | 4 +++-
gotools/Makefile.in | 4 +++-
2 files changed, 6 insertions(+), 2 deletions(-)
--- a/gotools/Makefile.am
+++ b/gotools/Makefile.am
@@ -26,6 +26,7 @@ PWD_COMMAND = $${PWDCMD-pwd}
STAMP = echo timestamp >
libgodir = ../$(target_noncanonical)/libgo
+libgccdir = ../$(target_noncanonical)/libgcc
LIBGODEP = $(libgodir)/libgo.la
LIBGOTOOL = $(libgodir)/libgotool.a
@@ -41,7 +42,8 @@ GOCFLAGS = $(CFLAGS_FOR_TARGET)
GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
AM_GOCFLAGS = -I $(libgodir)
-AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs
+AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \
+ -L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s
GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@
libgosrcdir = $(srcdir)/../libgo/go
--- a/gotools/Makefile.in
+++ b/gotools/Makefile.in
@@ -263,6 +263,7 @@ mkinstalldirs = $(SHELL) $(toplevel_srcd
PWD_COMMAND = $${PWDCMD-pwd}
STAMP = echo timestamp >
libgodir = ../$(target_noncanonical)/libgo
+libgccdir = ../$(target_noncanonical)/libgcc
LIBGODEP = $(libgodir)/libgo.la
LIBGOTOOL = $(libgodir)/libgotool.a
@NATIVE_FALSE@GOCOMPILER = $(GOC)
@@ -271,7 +272,8 @@ LIBGOTOOL = $(libgodir)/libgotool.a
@NATIVE_TRUE@GOCOMPILER = $(GOC_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET)
GOCOMPILE = $(GOCOMPILER) $(GOCFLAGS)
AM_GOCFLAGS = -I $(libgodir)
-AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs
+AM_LDFLAGS = -L $(libgodir) -L $(libgodir)/.libs \
+ -L $(libgccdir) -L $(libgccdir)/.libs -lgcc_s
GOLINK = $(GOCOMPILER) $(GOCFLAGS) $(AM_GOCFLAGS) $(LDFLAGS) $(AM_LDFLAGS) -o $@
libgosrcdir = $(srcdir)/../libgo/go
cmdsrcdir = $(libgosrcdir)/cmd