devkitPPC: update to gcc 10

dkppc/patches/gcc-10.1.0.patch

@@ -1,30 +1,59 @@
 diff --git a/config/gthr.m4 b/config/gthr.m4
-index 7b29f1f3327..814104f32a2 100644
+index 4b937306ad0..bfd0375bd60 100644
 --- a/config/gthr.m4
 +++ b/config/gthr.m4
-@@ -12,6 +12,7 @@ AC_DEFUN([GCC_AC_THREAD_HEADER],
- [
+@@ -13,6 +13,7 @@ AC_DEFUN([GCC_AC_THREAD_HEADER],
  case $1 in
      aix)	thread_header=config/rs6000/gthr-aix.h ;;
-+    dkp)	thread_header=config/rs6000/gthr-dkp.h ;;
      dce)	thread_header=config/pa/gthr-dce.h ;;
++    dkp)        thread_header=config/rs6000/gthr-dkp.h ;;
+     gcn)	thread_header=config/gcn/gthr-gcn.h ;;
      lynx)	thread_header=config/gthr-lynx.h ;;
      mipssde)	thread_header=config/mips/gthr-mipssde.h ;;
-diff --git a/gcc/config.gcc b/gcc/config.gcc
-index 47cfce25dee..cfd8ce71123 100644
---- a/gcc/config.gcc
-+++ b/gcc/config.gcc
-@@ -2480,7 +2480,7 @@ powerpc-xilinx-eabi*)
- 	use_gcc_stdint=wrap
- 	;;
- powerpc-*-eabi*)
--	tm_file="${tm_file} dbxelf.h elfos.h usegas.h freebsd-spec.h newlib-stdint.h rs6000/sysv4.h rs6000/eabi.h"
-+	tm_file="${tm_file} dbxelf.h elfos.h usegas.h freebsd-spec.h newlib-stdint.h rs6000/sysv4.h rs6000/eabi.h rs6000/750cl.h"
- 	extra_options="${extra_options} rs6000/sysv4.opt"
- 	tmake_file="rs6000/t-fprules rs6000/t-ppcgas rs6000/t-ppccomm"
- 	use_gcc_stdint=wrap
+diff --git a/gcc/config/i386/host-mingw32.c b/gcc/config/i386/host-mingw32.c
+index 250fef59b55..36b2239aa5d 100644
+--- a/gcc/config/i386/host-mingw32.c
++++ b/gcc/config/i386/host-mingw32.c
+@@ -44,9 +44,6 @@ static size_t mingw32_gt_pch_alloc_granularity (void);
+ 
+ static inline void w32_error(const char*, const char*, int, const char*);
+ 
+-/* FIXME: Is this big enough?  */
+-static const size_t pch_VA_max_size  = 128 * 1024 * 1024;
+-
+ /* Granularity for reserving address space.  */
+ static size_t va_granularity = 0x10000;
+ 
+@@ -88,9 +85,6 @@ static void *
+ mingw32_gt_pch_get_address (size_t size, int)
+ {
+   void* res;
+-  size = (size + va_granularity - 1) & ~(va_granularity - 1);
+-  if (size > pch_VA_max_size)
+-    return NULL;
+ 
+   /* FIXME: We let system determine base by setting first arg to NULL.
+      Allocating at top of available address space avoids unnecessary
+@@ -100,7 +94,7 @@ mingw32_gt_pch_get_address (size_t size, int)
+      If we allocate at bottom we need to reserve the address as early
+      as possible and at the same point in each invocation. */
+  
+-  res = VirtualAlloc (NULL, pch_VA_max_size,
++  res = VirtualAlloc (NULL, size,
+ 		      MEM_RESERVE | MEM_TOP_DOWN,
+ 		      PAGE_NOACCESS);
+   if (!res)
+@@ -150,7 +144,7 @@ mingw32_gt_pch_use_address (void *addr, size_t size, int fd,
+ 
+   /* Offset must be also be a multiple of allocation granularity for
+      this to work.  We can't change the offset. */ 
+-  if ((offset & (va_granularity - 1)) != 0 || size > pch_VA_max_size)
++  if ((offset & (va_granularity - 1)) != 0)
+     return -1;
+ 
+ 
 diff --git a/gcc/config/newlib-stdint.h b/gcc/config/newlib-stdint.h
-index f46e797d610..fd39e64c38d 100644
+index 2e086f16de9..1c27c6467bc 100644
 --- a/gcc/config/newlib-stdint.h
 +++ b/gcc/config/newlib-stdint.h
 @@ -25,7 +25,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
@@ -37,18 +66,18 @@ index f46e797d610..fd39e64c38d 100644
  
  #define SIG_ATOMIC_TYPE "int"
 diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
-index b83b304e3eb..b85359edcfc 100644
+index 1adc371d70f..a7e1220981c 100644
 --- a/gcc/config/rs6000/rs6000.h
 +++ b/gcc/config/rs6000/rs6000.h
-@@ -212,6 +212,7 @@
-   { "asm_cpu_476",		ASM_CPU_476_SPEC },			\
-   SUBTARGET_EXTRA_SPECS
- 
-+#if 0
+@@ -196,6 +196,7 @@ ASM_OPT_ANY
  /* -mcpu=native handling only makes sense with compiler running on
     an PowerPC chip.  If changing this condition, also change
     the condition in driver-rs6000.c.  */
-@@ -226,6 +227,8 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
++#if 0
+ #if defined(__powerpc__) || defined(__POWERPC__) || defined(_AIX)
+ /* In driver-rs6000.c.  */
+ extern const char *host_detect_local_cpu (int argc, const char **argv);
+@@ -207,6 +208,8 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
  #else
  #define ASM_CPU_NATIVE_SPEC "%(asm_default)"
  #endif
@@ -57,42 +86,11 @@ index b83b304e3eb..b85359edcfc 100644
  
  #ifndef CC1_CPU_SPEC
  #ifdef HAVE_LOCAL_CPU_DETECT
-diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
-index 4dbe8e5d133..3e2095e5b64 100644
---- a/gcc/config/rs6000/rs6000.md
-+++ b/gcc/config/rs6000/rs6000.md
-@@ -5631,19 +5631,19 @@
-     tmp = gen_reg_rtx (DImode);
- 
-   emit_insn (gen_fctiwz_<mode> (tmp, src));
--  if (MEM_P (dest))
-+  if (TARGET_POWERPC64 && (TARGET_MFPGPR || TARGET_DIRECT_MOVE))
-     {
--      dest = rs6000_address_for_fpconvert (dest);
--      emit_insn (gen_stfiwx (dest, tmp));
-+      dest = gen_lowpart (DImode, dest);
-+      emit_move_insn (dest, tmp);
-       DONE;
-     }
--  else if (TARGET_POWERPC64 && (TARGET_MFPGPR || TARGET_DIRECT_MOVE))
-+   else if (MEM_P (dest) && MEM_ALIGN (dest) >= 32)
-     {
--      dest = gen_lowpart (DImode, dest);
--      emit_move_insn (dest, tmp);
-+      dest = rs6000_address_for_fpconvert (dest);
-+      emit_insn (gen_stfiwx (dest, tmp));
-       DONE;
-     }
--  else
-+   else
-     {
-       rtx stack = rs6000_allocate_stack_temp (SImode, false, true);
-       emit_insn (gen_stfiwx (stack, tmp));
 diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
-index bb19d0dcd41..74d1e474432 100644
+index 9ade72114e9..cede792d3a7 100644
 --- a/gcc/config/rs6000/sysv4.h
 +++ b/gcc/config/rs6000/sysv4.h
-@@ -565,7 +565,11 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN)
+@@ -590,7 +590,11 @@ GNU_USER_TARGET_CC1_SPEC
  
  /* Default starting address if specified.  */
  #define LINK_START_SPEC "\
@@ -105,7 +103,7 @@ index bb19d0dcd41..74d1e474432 100644
    myellowknife : %(link_start_yellowknife) ; \
    mmvme        : %(link_start_mvme)        ; \
    msim         : %(link_start_sim)         ; \
-@@ -596,7 +600,8 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN)
+@@ -621,7 +625,8 @@ GNU_USER_TARGET_CC1_SPEC
  
  /* Any specific OS flags.  */
  #define LINK_OS_SPEC "\
@@ -115,7 +113,7 @@ index bb19d0dcd41..74d1e474432 100644
    myellowknife : %(link_os_yellowknife) ; \
    mmvme        : %(link_os_mvme)        ; \
    msim         : %(link_os_sim)         ; \
-@@ -614,7 +619,10 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN)
+@@ -636,7 +641,10 @@ GNU_USER_TARGET_CC1_SPEC
  /* Override rs6000.h definition.  */
  #undef	CPP_SPEC
  #define	CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
@@ -127,7 +125,7 @@ index bb19d0dcd41..74d1e474432 100644
    myellowknife : %(cpp_os_yellowknife) ; \
    mmvme        : %(cpp_os_mvme)        ; \
    msim         : %(cpp_os_sim)         ; \
-@@ -628,7 +636,10 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN)
+@@ -650,7 +658,10 @@ GNU_USER_TARGET_CC1_SPEC
  
  #undef	STARTFILE_SPEC
  #define	STARTFILE_SPEC "\
@@ -139,7 +137,7 @@ index bb19d0dcd41..74d1e474432 100644
    myellowknife : %(startfile_yellowknife) ; \
    mmvme        : %(startfile_mvme)        ; \
    msim         : %(startfile_sim)         ; \
-@@ -642,7 +653,8 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN)
+@@ -664,7 +675,8 @@ GNU_USER_TARGET_CC1_SPEC
  
  #undef	LIB_SPEC
  #define	LIB_SPEC "\
@@ -149,7 +147,7 @@ index bb19d0dcd41..74d1e474432 100644
    myellowknife : %(lib_yellowknife) ; \
    mmvme        : %(lib_mvme)        ; \
    msim         : %(lib_sim)         ; \
-@@ -652,11 +664,12 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN)
+@@ -674,11 +686,12 @@ GNU_USER_TARGET_CC1_SPEC
    mcall-openbsd: %(lib_openbsd)     ; \
                 : %(lib_default)     }"
  
@@ -164,7 +162,7 @@ index bb19d0dcd41..74d1e474432 100644
    myellowknife : %(endfile_yellowknife) ; \
    mmvme        : %(endfile_mvme)        ; \
    msim         : %(endfile_sim)         ; \
-@@ -672,16 +685,27 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN)
+@@ -694,16 +707,27 @@ GNU_USER_TARGET_CC1_SPEC
  
  /* Motorola ADS support.  */
  #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
@@ -192,7 +190,7 @@ index bb19d0dcd41..74d1e474432 100644
  
  /* Motorola Yellowknife support.  */
  #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
-@@ -882,6 +906,7 @@ ncrtn.o%s"
+@@ -851,6 +875,7 @@ ncrtn.o%s"
  #undef	SUBTARGET_EXTRA_SPECS
  #define	SUBTARGET_EXTRA_SPECS						\
    { "crtsavres_default",	CRTSAVRES_DEFAULT_SPEC },		\
@@ -200,7 +198,7 @@ index bb19d0dcd41..74d1e474432 100644
    { "lib_ads",			LIB_ADS_SPEC },				\
    { "lib_yellowknife",		LIB_YELLOWKNIFE_SPEC },			\
    { "lib_mvme",			LIB_MVME_SPEC },			\
-@@ -891,6 +916,7 @@ ncrtn.o%s"
+@@ -860,6 +885,7 @@ ncrtn.o%s"
    { "lib_netbsd",		LIB_NETBSD_SPEC },			\
    { "lib_openbsd",		LIB_OPENBSD_SPEC },			\
    { "lib_default",		LIB_DEFAULT_SPEC },			\
@@ -208,7 +206,7 @@ index bb19d0dcd41..74d1e474432 100644
    { "startfile_ads",		STARTFILE_ADS_SPEC },			\
    { "startfile_yellowknife",	STARTFILE_YELLOWKNIFE_SPEC },		\
    { "startfile_mvme",		STARTFILE_MVME_SPEC },			\
-@@ -900,6 +926,7 @@ ncrtn.o%s"
+@@ -869,6 +895,7 @@ ncrtn.o%s"
    { "startfile_netbsd",		STARTFILE_NETBSD_SPEC },		\
    { "startfile_openbsd",	STARTFILE_OPENBSD_SPEC },		\
    { "startfile_default",	STARTFILE_DEFAULT_SPEC },		\
@@ -216,7 +214,7 @@ index bb19d0dcd41..74d1e474432 100644
    { "endfile_ads",		ENDFILE_ADS_SPEC },			\
    { "endfile_yellowknife",	ENDFILE_YELLOWKNIFE_SPEC },		\
    { "endfile_mvme",		ENDFILE_MVME_SPEC },			\
-@@ -911,7 +938,11 @@ ncrtn.o%s"
+@@ -880,7 +907,11 @@ ncrtn.o%s"
    { "endfile_default",		ENDFILE_DEFAULT_SPEC },			\
    { "link_shlib",		LINK_SHLIB_SPEC },			\
    { "link_start",		LINK_START_SPEC },			\
@@ -228,7 +226,7 @@ index bb19d0dcd41..74d1e474432 100644
    { "link_start_yellowknife",	LINK_START_YELLOWKNIFE_SPEC },		\
    { "link_start_mvme",		LINK_START_MVME_SPEC },			\
    { "link_start_sim",		LINK_START_SIM_SPEC },			\
-@@ -921,6 +952,7 @@ ncrtn.o%s"
+@@ -890,6 +921,7 @@ ncrtn.o%s"
    { "link_start_openbsd",	LINK_START_OPENBSD_SPEC },		\
    { "link_start_default",	LINK_START_DEFAULT_SPEC },		\
    { "link_os",			LINK_OS_SPEC },				\
@@ -236,7 +234,7 @@ index bb19d0dcd41..74d1e474432 100644
    { "link_os_ads",		LINK_OS_ADS_SPEC },			\
    { "link_os_yellowknife",	LINK_OS_YELLOWKNIFE_SPEC },		\
    { "link_os_mvme",		LINK_OS_MVME_SPEC },			\
-@@ -932,6 +964,9 @@ ncrtn.o%s"
+@@ -901,6 +933,9 @@ ncrtn.o%s"
    { "link_os_default",		LINK_OS_DEFAULT_SPEC },			\
    { "cc1_secure_plt_default",	CC1_SECURE_PLT_DEFAULT_SPEC },		\
    { "link_secure_plt",		LINK_SECURE_PLT_SPEC },			\
@@ -247,7 +245,7 @@ index bb19d0dcd41..74d1e474432 100644
    { "cpp_os_yellowknife",	CPP_OS_YELLOWKNIFE_SPEC },		\
    { "cpp_os_mvme",		CPP_OS_MVME_SPEC },			\
 diff --git a/gcc/config/rs6000/sysv4.opt b/gcc/config/rs6000/sysv4.opt
-index 34fea0ddd08..084a8ae435e 100644
+index b49ba261f3c..4eda763dfca 100644
 --- a/gcc/config/rs6000/sysv4.opt
 +++ b/gcc/config/rs6000/sysv4.opt
 @@ -124,6 +124,26 @@ mads
@@ -278,10 +276,10 @@ index 34fea0ddd08..084a8ae435e 100644
  Target RejectNegative
  Link with libyk.a, libc.a and crt0.o.
 diff --git a/gcc/configure b/gcc/configure
-index 97ba7d7d69c..c0e468546ed 100755
+index cd3d9516fce..fcb4b206b60 100755
 --- a/gcc/configure
 +++ b/gcc/configure
-@@ -11693,7 +11693,7 @@ case ${enable_threads} in
+@@ -12208,7 +12208,7 @@ case ${enable_threads} in
      # default
      target_thread_file='single'
      ;;
@@ -291,10 +289,10 @@ index 97ba7d7d69c..c0e468546ed 100755
      target_thread_file=${enable_threads}
      ;;
 diff --git a/gcc/configure.ac b/gcc/configure.ac
-index d6f2d5b2ed0..15edac2ce9b 100644
+index 0de3b4bf97b..739aa4ae3da 100644
 --- a/gcc/configure.ac
 +++ b/gcc/configure.ac
-@@ -1611,7 +1611,7 @@ case ${enable_threads} in
+@@ -1800,7 +1800,7 @@ case ${enable_threads} in
      # default
      target_thread_file='single'
      ;;
@@ -304,7 +302,7 @@ index d6f2d5b2ed0..15edac2ce9b 100644
      target_thread_file=${enable_threads}
      ;;
 diff --git a/libgcc/config/rs6000/crtrestvr.S b/libgcc/config/rs6000/crtrestvr.S
-index ba2b2623301..8d866107142 100644
+index 260fe4d1af6..664808cd19c 100644
 --- a/libgcc/config/rs6000/crtrestvr.S
 +++ b/libgcc/config/rs6000/crtrestvr.S
 @@ -24,7 +24,7 @@
@@ -322,7 +320,7 @@ index ba2b2623301..8d866107142 100644
  #endif
 +#endif
 diff --git a/libgcc/config/rs6000/crtsavevr.S b/libgcc/config/rs6000/crtsavevr.S
-index 077e33f34d5..b7be68b710f 100644
+index 7e1d5c5df98..2c62480d165 100644
 --- a/libgcc/config/rs6000/crtsavevr.S
 +++ b/libgcc/config/rs6000/crtsavevr.S
 @@ -24,7 +24,7 @@
@@ -341,10 +339,10 @@ index 077e33f34d5..b7be68b710f 100644
 +#endif
 diff --git a/libgcc/config/rs6000/gthr-dkp.c b/libgcc/config/rs6000/gthr-dkp.c
 new file mode 100644
-index 00000000000..94d6ba94ec0
+index 00000000000..26180aa7f36
 --- /dev/null
 +++ b/libgcc/config/rs6000/gthr-dkp.c
-@@ -0,0 +1,349 @@
+@@ -0,0 +1,319 @@
 +/* Threads compatibility routines for libgcc2 and libobjc.  */
 +/* Compile this one with gcc.  */
 +/* Copyright (C) 1997-2016 Free Software Foundation, Inc.
@@ -370,336 +368,306 @@ index 00000000000..94d6ba94ec0
 +see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 +<http://www.gnu.org/licenses/>.  */
 +
++#define _BUILDING_LIBGCC
 +#include "gthr-dkp.h"
 +#include <stddef.h>
 +
-+__gthread_impl_t __gthread_impl = {
-+  NULL, // active
-+  NULL, // create
-+  NULL, // join
-+  NULL, // detach
-+  NULL, // equal
-+  NULL, // self
-+  NULL, // yield
-+  NULL, // once
-+  NULL, // key_create
-+  NULL, // key_delete
-+  NULL, // getspecific
-+  NULL, // setspecific
-+  NULL, // mutex_init_function
-+  NULL, // mutex_destroy
-+  NULL, // mutex_lock
-+  NULL, // mutex_trylock
-+  NULL, // mutex_unlock
-+  NULL, // recursive_mutex_init_function
-+  NULL, // recursive_mutex_lock
-+  NULL, // recursive_mutex_trylock
-+  NULL, // recursive_mutex_unlock
-+  NULL, // recursive_mutex_destroy
-+  NULL, // cond_init_function
-+  NULL, // cond_broadcast
-+  NULL, // cond_signal
-+  NULL, // cond_wait
-+  NULL, // cond_timedwait
-+  NULL, // cond_wait_recursive
-+  NULL, // cond_destroy
-+};
 +
 +int
 +__gthread_active_p (void)
 +{
-+  if (!__gthread_impl.active) {
++  if (!__has_gthr_impl(active)) {
 +    return 0;
 +  }
 +
-+  return __gthread_impl.active();
++  return __gthr_impl_active();
 +}
 +
 +int
 +__gthread_create (__gthread_t *__threadid, void *(*__func) (void*),
 +                  void *__args)
 +{
-+  if (!__gthread_impl.create) {
++  if (!__has_gthr_impl(create)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.create(__threadid, __func, __args);
++  return __gthr_impl_create(__threadid, __func, __args);
 +}
 +
 +int
 +__gthread_join (__gthread_t __threadid, void **__value_ptr)
 +{
-+  if (!__gthread_impl.join) {
++  if (!__has_gthr_impl(join)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.join(__threadid, __value_ptr);
++  return __gthr_impl_join(__threadid, __value_ptr);
 +}
 +
 +int
 +__gthread_detach (__gthread_t __threadid)
 +{
-+  if (!__gthread_impl.detach) {
++  if (!__has_gthr_impl(detach)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.detach(__threadid);
++  return __gthr_impl_detach(__threadid);
 +}
 +
 +int
 +__gthread_equal (__gthread_t __t1, __gthread_t __t2)
 +{
-+  if (!__gthread_impl.equal) {
++  if (!__has_gthr_impl(equal)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.equal(__t1, __t2);
++  return __gthr_impl_equal(__t1, __t2);
 +}
 +
 +__gthread_t
 +__gthread_self (void)
 +{
-+  if (!__gthread_impl.self) {
++  if (!__has_gthr_impl(self)) {
 +    __gthread_t result = { 0 };
 +    return result;
 +  }
 +
-+  return __gthread_impl.self();
++  return __gthr_impl_self();
 +}
 +
 +int
 +__gthread_yield (void)
 +{
-+  if (!__gthread_impl.yield) {
++  if (!__has_gthr_impl(yield)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.yield();
++  return __gthr_impl_yield();
 +}
 +
 +int
 +__gthread_once (__gthread_once_t *__once, void (*__func) (void))
 +{
-+  if (!__gthread_impl.once) {
++  if (!__has_gthr_impl(once)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.once(__once, __func);
++  return __gthr_impl_once(__once, __func);
 +}
 +
 +int
 +__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
 +{
-+  if (!__gthread_impl.key_create) {
++  if (!__has_gthr_impl(key_create)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.key_create(__key, __dtor);
++  return __gthr_impl_key_create(__key, __dtor);
 +}
 +
 +int
 +__gthread_key_delete (__gthread_key_t __key)
 +{
-+  if (!__gthread_impl.key_delete) {
++  if (!__has_gthr_impl(key_delete)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.key_delete(__key);
++  return __gthr_impl_key_delete(__key);
 +}
 +
 +void *
 +__gthread_getspecific (__gthread_key_t __key)
 +{
-+  if (!__gthread_impl.getspecific) {
++  if (!__has_gthr_impl(getspecific)) {
 +    return NULL;
 +  }
 +
-+  return __gthread_impl.getspecific(__key);
++  return __gthr_impl_getspecific(__key);
 +}
 +
 +int
 +__gthread_setspecific (__gthread_key_t __key, const void *__ptr)
 +{
-+  if (!__gthread_impl.setspecific) {
++  if (!__has_gthr_impl(setspecific)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.setspecific(__key, __ptr);
++  return __gthr_impl_setspecific(__key, __ptr);
 +}
 +
 +void
 +__gthread_mutex_init_function (__gthread_mutex_t *__mutex)
 +{
-+  if (__gthread_impl.mutex_init_function) {
-+    __gthread_impl.mutex_init_function(__mutex);
++  if (__has_gthr_impl(mutex_init_function)) {
++    __gthr_impl_mutex_init_function(__mutex);
 +  }
 +}
 +
 +int
 +__gthread_mutex_destroy (__gthread_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.mutex_destroy) {
++  if (!__has_gthr_impl(mutex_destroy)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.mutex_destroy(__mutex);
++  return __gthr_impl_mutex_destroy(__mutex);
 +}
 +
 +int
 +__gthread_mutex_lock (__gthread_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.mutex_lock) {
++  if (!__has_gthr_impl(mutex_lock)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.mutex_lock(__mutex);
++  return __gthr_impl_mutex_lock(__mutex);
 +}
 +
 +int
 +__gthread_mutex_trylock (__gthread_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.mutex_trylock) {
++  if (!__has_gthr_impl(mutex_trylock)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.mutex_trylock(__mutex);
++  return __gthr_impl_mutex_trylock(__mutex);
 +}
 +
 +int
 +__gthread_mutex_unlock (__gthread_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.mutex_unlock) {
++  if (!__has_gthr_impl(mutex_unlock)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.mutex_unlock(__mutex);
++  return __gthr_impl_mutex_unlock(__mutex);
 +}
 +
 +int
 +__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.recursive_mutex_init_function) {
++  if (!__has_gthr_impl(recursive_mutex_init_function)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.recursive_mutex_init_function(__mutex);
++  return __gthr_impl_recursive_mutex_init_function(__mutex);
 +}
 +
 +int
 +__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.recursive_mutex_lock) {
++  if (!__has_gthr_impl(recursive_mutex_lock)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.recursive_mutex_lock(__mutex);
++  return __gthr_impl_recursive_mutex_lock(__mutex);
 +}
 +
 +int
 +__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.recursive_mutex_trylock) {
++  if (!__has_gthr_impl(recursive_mutex_trylock)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.recursive_mutex_trylock(__mutex);
++  return __gthr_impl_recursive_mutex_trylock(__mutex);
 +}
 +
 +int
 +__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.recursive_mutex_unlock) {
++  if (!__has_gthr_impl(recursive_mutex_unlock)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.recursive_mutex_unlock(__mutex);
++  return __gthr_impl_recursive_mutex_unlock(__mutex);
 +}
 +
 +int
 +__gthread_recursive_mutex_destroy (__gthread_recursive_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.recursive_mutex_destroy) {
++  if (!__has_gthr_impl(recursive_mutex_destroy)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.recursive_mutex_destroy(__mutex);
++  return __gthr_impl_recursive_mutex_destroy(__mutex);
 +}
 +
 +void
 +__gthread_cond_init_function (__gthread_cond_t *__cond)
 +{
-+  if (__gthread_impl.cond_init_function) {
-+    __gthread_impl.cond_init_function(__cond);
++  if (__has_gthr_impl(cond_init_function)) {
++    __gthr_impl_cond_init_function(__cond);
 +  }
 +}
 +
 +int
 +__gthread_cond_broadcast (__gthread_cond_t *__cond)
 +{
-+  if (!__gthread_impl.cond_broadcast) {
++  if (!__has_gthr_impl(cond_broadcast)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.cond_broadcast(__cond);
++  return __gthr_impl_cond_broadcast(__cond);
 +}
 +
 +int
 +__gthread_cond_signal (__gthread_cond_t *__cond)
 +{
-+  if (!__gthread_impl.cond_signal) {
++  if (!__has_gthr_impl(cond_signal)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.cond_signal(__cond);
++  return __gthr_impl_cond_signal(__cond);
 +}
 +
 +int
 +__gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.cond_wait) {
++  if (!__has_gthr_impl(cond_wait)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.cond_wait(__cond, __mutex);
++  return __gthr_impl_cond_wait(__cond, __mutex);
 +}
 +
 +int
 +__gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex,
 +                          const __gthread_time_t *__abs_timeout)
 +{
-+  if (!__gthread_impl.cond_timedwait) {
++  if (!__has_gthr_impl(cond_timedwait)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.cond_timedwait(__cond, __mutex, __abs_timeout);
++  return __gthr_impl_cond_timedwait(__cond, __mutex, __abs_timeout);
 +}
 +
 +int
 +__gthread_cond_wait_recursive (__gthread_cond_t *__cond,
 +                               __gthread_recursive_mutex_t *__mutex)
 +{
-+  if (!__gthread_impl.cond_wait_recursive) {
++  if (!__has_gthr_impl(cond_wait_recursive)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.cond_wait_recursive(__cond, __mutex);
++  return __gthr_impl_cond_wait_recursive(__cond, __mutex);
 +}
 +
 +int
 +__gthread_cond_destroy (__gthread_cond_t* __cond)
 +{
-+  if (!__gthread_impl.cond_destroy) {
++  if (!__has_gthr_impl(cond_destroy)) {
 +    return -1;
 +  }
 +
-+  return __gthread_impl.cond_destroy(__cond);
++  return __gthr_impl_cond_destroy(__cond);
 +}
 diff --git a/libgcc/config/rs6000/gthr-dkp.h b/libgcc/config/rs6000/gthr-dkp.h
 new file mode 100644
-index 00000000000..281c19d2a60
+index 00000000000..72ecf82ab83
 --- /dev/null
 +++ b/libgcc/config/rs6000/gthr-dkp.h
-@@ -0,0 +1,185 @@
+@@ -0,0 +1,187 @@
 +/* Threads compatibility routines for libgcc2 and libobjc.  */
 +/* Compile this one with gcc.  */
 +/* Copyright (C) 1997-2016 Free Software Foundation, Inc.
@@ -753,42 +721,44 @@ index 00000000000..281c19d2a60
 +#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
 +#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
 +
-+typedef struct {
-+  int (*active) (void);
-+  int (*create) (__gthread_t *__threadid, void *(*__func) (void*),
-+                 void *__args);
-+  int (*join) (__gthread_t __threadid, void **__value_ptr);
-+  int (*detach) (__gthread_t __threadid);
-+  int (*equal) (__gthread_t __t1, __gthread_t __t2);
-+  __gthread_t (*self) (void);
-+  int (*yield) (void);
-+  int (*once) (__gthread_once_t *__once, void (*__func) (void));
-+  int (*key_create) (__gthread_key_t *__key, void (*__dtor) (void *));
-+  int (*key_delete) (__gthread_key_t __key);
-+  void * (*getspecific) (__gthread_key_t __key);
-+  int (*setspecific) (__gthread_key_t __key, const void *__ptr);
-+  void (*mutex_init_function) (__gthread_mutex_t *__mutex);
-+  int (*mutex_destroy) (__gthread_mutex_t *__mutex);
-+  int (*mutex_lock) (__gthread_mutex_t *__mutex);
-+  int (*mutex_trylock) (__gthread_mutex_t *__mutex);
-+  int (*mutex_unlock) (__gthread_mutex_t *__mutex);
-+  int (*recursive_mutex_init_function) (__gthread_recursive_mutex_t *__mutex);
-+  int (*recursive_mutex_lock) (__gthread_recursive_mutex_t *__mutex);
-+  int (*recursive_mutex_trylock) (__gthread_recursive_mutex_t *__mutex);
-+  int (*recursive_mutex_unlock) (__gthread_recursive_mutex_t *__mutex);
-+  int (*recursive_mutex_destroy) (__gthread_recursive_mutex_t *__mutex);
-+  void (*cond_init_function) (__gthread_cond_t *__cond);
-+  int (*cond_broadcast) (__gthread_cond_t *__cond);
-+  int (*cond_signal) (__gthread_cond_t *__cond);
-+  int (*cond_wait) (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex);
-+  int (*cond_timedwait) (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex,
-+                         const __gthread_time_t *__abs_timeout);
-+  int (*cond_wait_recursive) (__gthread_cond_t *__cond,
-+                              __gthread_recursive_mutex_t *__mutex);
-+  int (*cond_destroy) (__gthread_cond_t* __cond);
-+} __gthread_impl_t;
++#ifdef _BUILDING_LIBGCC
++#define __GTHR_IMPL(_name) __attribute__((weak)) __gthr_impl_##_name
++#define __has_gthr_impl(_name) (&__gthr_impl_##_name)
++#else
++#define __GTHR_IMPL(_name) __gthr_impl_##_name
++#endif
 +
-+extern __gthread_impl_t __gthread_impl;
++int __GTHR_IMPL(active) (void);
++int __GTHR_IMPL(create) (__gthread_t *__threadid, void *(*__func) (void*), void *__args);
++int __GTHR_IMPL(join) (__gthread_t __threadid, void **__value_ptr);
++int __GTHR_IMPL(detach) (__gthread_t __threadid);
++int __GTHR_IMPL(equal) (__gthread_t __t1, __gthread_t __t2);
++__gthread_t __GTHR_IMPL(self) (void);
++int __GTHR_IMPL(yield) (void);
++int __GTHR_IMPL(once) (__gthread_once_t *__once, void (*__func) (void));
++int __GTHR_IMPL(key_create) (__gthread_key_t *__key, void (*__dtor) (void *));
++int __GTHR_IMPL(key_delete) (__gthread_key_t __key);
++void * __GTHR_IMPL(getspecific) (__gthread_key_t __key);
++int __GTHR_IMPL(setspecific) (__gthread_key_t __key, const void *__ptr);
++void __GTHR_IMPL(mutex_init_function) (__gthread_mutex_t *__mutex);
++int __GTHR_IMPL(mutex_destroy) (__gthread_mutex_t *__mutex);
++int __GTHR_IMPL(mutex_lock) (__gthread_mutex_t *__mutex);
++int __GTHR_IMPL(mutex_trylock) (__gthread_mutex_t *__mutex);
++int __GTHR_IMPL(mutex_unlock) (__gthread_mutex_t *__mutex);
++int __GTHR_IMPL(recursive_mutex_init_function) (__gthread_recursive_mutex_t *__mutex);
++int __GTHR_IMPL(recursive_mutex_lock) (__gthread_recursive_mutex_t *__mutex);
++int __GTHR_IMPL(recursive_mutex_trylock) (__gthread_recursive_mutex_t *__mutex);
++int __GTHR_IMPL(recursive_mutex_unlock) (__gthread_recursive_mutex_t *__mutex);
++int __GTHR_IMPL(recursive_mutex_destroy) (__gthread_recursive_mutex_t *__mutex);
++void __GTHR_IMPL(cond_init_function) (__gthread_cond_t *__cond);
++int __GTHR_IMPL(cond_broadcast) (__gthread_cond_t *__cond);
++int __GTHR_IMPL(cond_signal) (__gthread_cond_t *__cond);
++int __GTHR_IMPL(cond_wait) (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex);
++int __GTHR_IMPL(cond_timedwait) (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex,
++                         const __gthread_time_t *__abs_timeout);
++int __GTHR_IMPL(cond_wait_recursive) (__gthread_cond_t *__cond,
++                              __gthread_recursive_mutex_t *__mutex);
++int __GTHR_IMPL(cond_destroy) (__gthread_cond_t* __cond);
 +
 +int
 +__gthread_active_p (void);
@@ -896,38 +866,26 @@ index fb812d3801f..7f6669d530f 100644
  
  # This can't end up in shared libgcc
 diff --git a/libgcc/configure b/libgcc/configure
-index b2f3f870844..c6f93f8b3ac 100644
+index 26bf75789e0..1f663d2cfb0 100755
 --- a/libgcc/configure
 +++ b/libgcc/configure
-@@ -5442,6 +5442,7 @@ tm_file="${tm_file_}"
- 
+@@ -5640,6 +5640,7 @@ tm_file="${tm_file_}"
  case $target_thread_file in
      aix)	thread_header=config/rs6000/gthr-aix.h ;;
-+    dkp)	thread_header=config/rs6000/gthr-dkp.h ;;
      dce)	thread_header=config/pa/gthr-dce.h ;;
++    dkp)        thread_header=config/rs6000/gthr-dkp.h ;;
+     gcn)	thread_header=config/gcn/gthr-gcn.h ;;
      lynx)	thread_header=config/gthr-lynx.h ;;
      mipssde)	thread_header=config/mips/gthr-mipssde.h ;;
-diff --git a/libgcc/crtstuff.c b/libgcc/crtstuff.c
-index 5e894455e16..f2347455de0 100644
---- a/libgcc/crtstuff.c
-+++ b/libgcc/crtstuff.c
-@@ -47,6 +47,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
- 
- /* 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,
 diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
-index 61457e940ec..a7c63407ced 100755
+index 9f9c5a2419a..c9bb6c548be 100755
 --- a/libstdc++-v3/configure
 +++ b/libstdc++-v3/configure
-@@ -15382,6 +15382,7 @@ $as_echo "$target_thread_file" >&6; }
- 
+@@ -15637,6 +15637,7 @@ $as_echo "$target_thread_file" >&6; }
  case $target_thread_file in
      aix)	thread_header=config/rs6000/gthr-aix.h ;;
-+    dkp)	thread_header=config/rs6000/gthr-dkp.h ;;
      dce)	thread_header=config/pa/gthr-dce.h ;;
++    dkp)        thread_header=config/rs6000/gthr-dkp.h ;;
+     gcn)	thread_header=config/gcn/gthr-gcn.h ;;
      lynx)	thread_header=config/gthr-lynx.h ;;
      mipssde)	thread_header=config/mips/gthr-mipssde.h ;;

select_toolchain.sh

@@ -40,7 +40,7 @@ case "$VERSION" in
     toolchain=DEVKITARM
   ;;
   "2" )
-    GCC_VER=8.4.0
+    GCC_VER=10.1.0
     BINUTILS_VER=2.32
     MN_BINUTILS_VER=2.17
     NEWLIB_VER=3.3.0