use gcc 7.3.0 & binutils 2.30

dkarm-eabi/patches/gcc-7.3.0.patch

@@ -0,0 +1,125 @@
+diff -NBaur gcc-7.3.0/gcc/config/arm/t-arm-elf gcc-7.3.0-arm/gcc/config/arm/t-arm-elf
+--- gcc-7.3.0/gcc/config/arm/t-arm-elf	2017-01-01 12:07:43.905435000 +0000
++++ gcc-7.3.0-arm/gcc/config/arm/t-arm-elf	2018-02-11 19:35:34.805307181 +0000
+@@ -16,11 +16,19 @@
+ # along with GCC; see the file COPYING3.  If not see
+ # <http://www.gnu.org/licenses/>.
+ 
+-MULTILIB_OPTIONS     = marm/mthumb
+-MULTILIB_DIRNAMES    = arm thumb
++MULTILIB_OPTIONS     = mthumb mbig-endian march=armv6k mfloat-abi=hard
++MULTILIB_DIRNAMES    = thumb be armv6k fpu
+ MULTILIB_EXCEPTIONS  = 
+ MULTILIB_MATCHES     =
+ 
++MULTILIB_REQUIRED    = mthumb mbig-endian mthumb/mbig-endian march=armv6k/mfloat-abi=hard 
++
++
++MULTILIB_MATCHES    += march?armv6k=mtune?mpcore
++MULTILIB_MATCHES    += march?armv6k=mcpu?mpcore
++
++
++
+ #MULTILIB_OPTIONS     += mcpu=fa526/mcpu=fa626/mcpu=fa606te/mcpu=fa626te/mcpu=fmp626/mcpu=fa726te
+ #MULTILIB_DIRNAMES    += fa526 fa626 fa606te fa626te fmp626 fa726te
+ #MULTILIB_EXCEPTIONS  += *mthumb*/*mcpu=fa526 *mthumb*/*mcpu=fa626
+@@ -38,9 +46,9 @@
+ # Not quite true.  We can support hard-vfp calling in Thumb2, but how do we
+ # express that here?  Also, we really need architecture v5e or later
+ # (mcrr etc).
+-MULTILIB_OPTIONS       += mfloat-abi=hard
+-MULTILIB_DIRNAMES      += fpu
+-MULTILIB_EXCEPTIONS    += *mthumb/*mfloat-abi=hard*
++#MULTILIB_OPTIONS       += mfloat-abi=hard
++#MULTILIB_DIRNAMES      += fpu
++#MULTILIB_EXCEPTIONS    += *mthumb/*mfloat-abi=hard*
+ #MULTILIB_EXCEPTIONS    += *mcpu=fa526/*mfloat-abi=hard*
+ #MULTILIB_EXCEPTIONS    += *mcpu=fa626/*mfloat-abi=hard*
+ 
+diff -NBaur gcc-7.3.0/gcc/config/arm/unknown-elf.h gcc-7.3.0-arm/gcc/config/arm/unknown-elf.h
+--- gcc-7.3.0/gcc/config/arm/unknown-elf.h	2017-01-01 12:07:43.905435000 +0000
++++ gcc-7.3.0-arm/gcc/config/arm/unknown-elf.h	2018-02-11 19:35:34.805307181 +0000
+@@ -29,7 +29,7 @@
+ #endif
+ 
+ /* Now we define the strings used to build the spec file.  */
+-#define UNKNOWN_ELF_STARTFILE_SPEC	" crti%O%s crtbegin%O%s crt0%O%s"
++#define UNKNOWN_ELF_STARTFILE_SPEC	" crti%O%s crtbegin%O%s"
+ 
+ #undef  STARTFILE_SPEC
+ #define STARTFILE_SPEC	\
+@@ -93,4 +93,9 @@
+    udivmoddi4, which will depend on the exception unwind routines,
+    which will depend on abort, which is defined in libc.  */ 
+ #undef LINK_GCC_C_SEQUENCE_SPEC
+-#define LINK_GCC_C_SEQUENCE_SPEC "--start-group %G %L --end-group"
++#define LINK_GCC_C_SEQUENCE_SPEC "--start-group %G %L %(libgloss) --end-group"
++
++/* The system headers under devkitARM are C++-aware.  */
++#undef NO_IMPLICIT_EXTERN_C
++#define NO_IMPLICIT_EXTERN_C
++
+diff -NBaur gcc-7.3.0/gcc/gcc.c gcc-7.3.0-arm/gcc/gcc.c
+--- gcc-7.3.0/gcc/gcc.c	2017-09-15 09:18:34.015147000 +0100
++++ gcc-7.3.0-arm/gcc/gcc.c	2018-02-11 19:35:34.805307181 +0000
+@@ -779,6 +779,11 @@
+ #endif
+ #endif
+ 
++#ifndef LIBGLOSS_SPEC
++# define LIBGLOSS_SPEC "-lsysbase"
++#endif
++
++
+ /* config.h can define STARTFILE_SPEC to override the default crt0 files.  */
+ #ifndef STARTFILE_SPEC
+ #define STARTFILE_SPEC  \
+@@ -1074,6 +1079,7 @@
+ static const char *lib_spec = LIB_SPEC;
+ static const char *link_gomp_spec = "";
+ static const char *libgcc_spec = LIBGCC_SPEC;
++static const char *libgloss_spec = LIBGLOSS_SPEC;
+ static const char *endfile_spec = ENDFILE_SPEC;
+ static const char *startfile_spec = STARTFILE_SPEC;
+ static const char *linker_name_spec = LINKER_NAME;
+@@ -1579,6 +1585,7 @@
+   INIT_STATIC_SPEC ("lib",			&lib_spec),
+   INIT_STATIC_SPEC ("link_gomp",		&link_gomp_spec),
+   INIT_STATIC_SPEC ("libgcc",			&libgcc_spec),
++  INIT_STATIC_SPEC ("libgloss",			&libgloss_spec),
+   INIT_STATIC_SPEC ("startfile",		&startfile_spec),
+   INIT_STATIC_SPEC ("cross_compile",		&cross_compile),
+   INIT_STATIC_SPEC ("version",			&compiler_version),
+diff -NBaur gcc-7.3.0/libgcc/config/arm/t-bpabi gcc-7.3.0-arm/libgcc/config/arm/t-bpabi
+--- gcc-7.3.0/libgcc/config/arm/t-bpabi	2012-08-17 16:06:06.447485000 +0100
++++ gcc-7.3.0-arm/libgcc/config/arm/t-bpabi	2018-02-11 19:35:34.809307181 +0000
+@@ -17,4 +17,4 @@
+ # On ARM, specifying -fnon-call-exceptions will needlessly pull in
+ # the unwinder in simple programs which use 64-bit division.  Omitting
+ # the option is safe.
+-LIB2_DIVMOD_EXCEPTION_FLAGS := -fexceptions
++LIB2_DIVMOD_EXCEPTION_FLAGS := -fno-exceptions
+diff -NBaur gcc-7.3.0/libgcc/crtstuff.c gcc-7.3.0-arm/libgcc/crtstuff.c
+--- gcc-7.3.0/libgcc/crtstuff.c	2017-01-01 12:07:43.905435000 +0000
++++ gcc-7.3.0-arm/libgcc/crtstuff.c	2018-02-11 19:35:34.809307181 +0000
+@@ -47,7 +47,7 @@
+ 
+ /* Target machine header files require this define. */
+ #define IN_LIBGCC2
+-
++#define USED_FOR_TARGET
+ /* FIXME: Including auto-host is incorrect, but until we have
+    identified the set of defines that need to go into auto-target.h,
+    this will have to do.  */
+diff -NBaur gcc-7.3.0/libgcc/Makefile.in gcc-7.3.0-arm/libgcc/Makefile.in
+--- gcc-7.3.0/libgcc/Makefile.in	2017-04-19 09:08:44.446150000 +0100
++++ gcc-7.3.0-arm/libgcc/Makefile.in	2018-02-11 19:35:34.809307181 +0000
+@@ -844,7 +844,7 @@
+ # libgcc_eh.a, only LIB2ADDEH matters.  If we do, only LIB2ADDEHSTATIC and
+ # LIB2ADDEHSHARED matter.  (Usually all three are identical.)
+ 
+-c_flags := -fexceptions
++c_flags := -fno-exceptions
+ 
+ ifeq ($(enable_shared),yes)
+ 

select_toolchain.sh

@@ -30,10 +30,10 @@ done
 
 case "$VERSION" in
   "1" )
-    GCC_VER=7.2.0
-    BINUTILS_VER=2.29.1
+    GCC_VER=7.3.0
+    BINUTILS_VER=2.30
     NEWLIB_VER=2.5.0
-    GDB_VER=8.0.1
+    GDB_VER=8.0
     basedir='dkarm-eabi'
     package=devkitARM
     target=arm-none-eabi