first commit

bin/riscv64-unknown-elf-gdb-add-index

@@ -0,0 +1,160 @@
+#! /bin/sh
+
+# Add a .gdb_index section to a file.
+
+# Copyright (C) 2010-2020 Free Software Foundation, Inc.
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This program assumes gdb and objcopy are in $PATH.
+# If not, or you want others, pass the following in the environment
+GDB=${GDB:=gdb}
+OBJCOPY=${OBJCOPY:=objcopy}
+READELF=${READELF:=readelf}
+
+myname="${0##*/}"
+
+dwarf5=""
+if [ "$1" = "-dwarf-5" ]; then
+    dwarf5="$1"
+    shift
+fi
+
+if test $# != 1; then
+    echo "usage: $myname [-dwarf-5] FILE" 1>&2
+    exit 1
+fi
+
+file="$1"
+
+if test ! -r "$file"; then
+    echo "$myname: unable to access: $file" 1>&2
+    exit 1
+fi
+
+dir="${file%/*}"
+test "$dir" = "$file" && dir="."
+
+dwz_file=""
+if $READELF -S "$file" | grep -q " \.gnu_debugaltlink "; then
+    dwz_file=$($READELF --string-dump=.gnu_debugaltlink "$file" \
+		   | grep -A1  "'\.gnu_debugaltlink':" \
+		   | tail -n +2 \
+		   | sed 's/.*]//')
+    dwz_file=$(echo $dwz_file)
+    if $READELF -S "$dwz_file" | grep -E -q " \.(gdb_index|debug_names) "; then
+	# Already has an index, skip it.
+	dwz_file=""
+    fi
+fi
+
+set_files ()
+{
+    local file="$1"
+
+    index4="${file}.gdb-index"
+    index5="${file}.debug_names"
+    debugstr="${file}.debug_str"
+    debugstrmerge="${file}.debug_str.merge"
+    debugstrerr="${file}.debug_str.err"
+}
+
+tmp_files=
+for f in "$file" "$dwz_file"; do
+    if [ "$f" = "" ]; then
+	continue
+    fi
+    set_files "$f"
+    tmp_files="$tmp_files $index4 $index5 $debugstr $debugstrmerge $debugstrerr"
+done
+
+rm -f $tmp_files
+
+# Ensure intermediate index file is removed when we exit.
+trap "rm -f $tmp_files" 0
+
+$GDB --batch -nx -iex 'set auto-load no' \
+    -ex "file $file" -ex "save gdb-index $dwarf5 $dir" || {
+    # Just in case.
+    status=$?
+    echo "$myname: gdb error generating index for $file" 1>&2
+    exit $status
+}
+
+# In some situations gdb can exit without creating an index.  This is
+# not an error.
+# E.g., if $file is stripped.  This behaviour is akin to stripping an
+# already stripped binary, it's a no-op.
+status=0
+
+handle_file ()
+{
+    local file
+    file="$1"
+
+    set_files "$file"
+
+    if test -f "$index4" -a -f "$index5"; then
+	echo "$myname: Both index types were created for $file" 1>&2
+	status=1
+    elif test -f "$index4" -o -f "$index5"; then
+	if test -f "$index4"; then
+	    index="$index4"
+	    section=".gdb_index"
+	else
+	    index="$index5"
+	    section=".debug_names"
+	fi
+	debugstradd=false
+	debugstrupdate=false
+	if test -s "$debugstr"; then
+	    if ! $OBJCOPY --dump-section .debug_str="$debugstrmerge" "$file" \
+		 /dev/null 2>$debugstrerr; then
+		cat >&2 $debugstrerr
+		exit 1
+	    fi
+	    if grep -q "can't dump section '.debug_str' - it does not exist" \
+		    $debugstrerr; then
+		debugstradd=true
+	    else
+		debugstrupdate=true
+		cat >&2 $debugstrerr
+	    fi
+	    cat "$debugstr" >>"$debugstrmerge"
+	fi
+
+	$OBJCOPY --add-section $section="$index" \
+		 --set-section-flags $section=readonly \
+		 $(if $debugstradd; then \
+		       echo --add-section .debug_str="$debugstrmerge"; \
+		       echo --set-section-flags .debug_str=readonly; \
+		   fi; \
+		   if $debugstrupdate; then \
+		       echo --update-section .debug_str="$debugstrmerge"; \
+		   fi) \
+		 "$file" "$file"
+
+	status=$?
+    else
+	echo "$myname: No index was created for $file" 1>&2
+	echo "$myname: [Was there no debuginfo? Was there already an index?]" \
+	     1>&2
+    fi
+}
+
+handle_file "$file"
+if [ "$dwz_file" != "" ]; then
+    handle_file "$dwz_file"
+fi
+
+exit $status

include/gdb/jit-reader.h

@@ -0,0 +1,346 @@
+/* JIT declarations for GDB, the GNU Debugger.
+
+   Copyright (C) 2011-2020 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef GDB_JIT_READER_H
+#define GDB_JIT_READER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Versioning information.  See gdb_reader_funcs.  */
+
+#define GDB_READER_INTERFACE_VERSION 1
+
+/* Readers must be released under a GPL compatible license.  To
+   declare that the reader is indeed released under a GPL compatible
+   license, invoke the macro GDB_DECLARE_GPL_COMPATIBLE in a source
+   file.  */
+
+#ifdef __cplusplus
+#define GDB_DECLARE_GPL_COMPATIBLE_READER       \
+  extern "C" {                                  \
+  extern int plugin_is_GPL_compatible (void);   \
+  extern int plugin_is_GPL_compatible (void)    \
+  {                                             \
+    return 0;                                   \
+  }                                             \
+  }
+
+#else
+
+#define GDB_DECLARE_GPL_COMPATIBLE_READER       \
+  extern int plugin_is_GPL_compatible (void);   \
+  extern int plugin_is_GPL_compatible (void)    \
+  {                                             \
+    return 0;                                   \
+  }
+
+#endif
+
+/* Represents an address on the target system.  */
+
+typedef unsigned long long GDB_CORE_ADDR;
+
+/* Return status codes.  */
+
+enum gdb_status {
+  GDB_FAIL = 0,
+  GDB_SUCCESS = 1
+};
+
+struct gdb_object;
+struct gdb_symtab;
+struct gdb_block;
+struct gdb_symbol_callbacks;
+
+/* An array of these are used to represent a map from code addresses to line
+   numbers in the source file.  */
+
+struct gdb_line_mapping
+{
+  int line;
+  GDB_CORE_ADDR pc;
+};
+
+/* Create a new GDB code object.  Each code object can have one or
+   more symbol tables, each representing a compiled source file.  */
+
+typedef struct gdb_object *(gdb_object_open) (struct gdb_symbol_callbacks *cb);
+
+/* The callback used to create new symbol table.  CB is the
+   gdb_symbol_callbacks which the structure is part of.  FILE_NAME is
+   an (optionally NULL) file name to associate with this new symbol
+   table.
+
+   Returns a new instance to gdb_symtab that can later be passed to
+   gdb_block_new, gdb_symtab_add_line_mapping and gdb_symtab_close.  */
+
+typedef struct gdb_symtab *(gdb_symtab_open) (struct gdb_symbol_callbacks *cb,
+                                              struct gdb_object *obj,
+                                              const char *file_name);
+
+/* Creates a new block in a given symbol table.  A symbol table is a
+   forest of blocks, each block representing an code address range and
+   a corresponding (optionally NULL) NAME.  In case the block
+   corresponds to a function, the NAME passed should be the name of
+   the function.
+
+   If the new block to be created is a child of (i.e. is nested in)
+   another block, the parent block can be passed in PARENT.  SYMTAB is
+   the symbol table the new block is to belong in.  BEGIN, END is the
+   code address range the block corresponds to.
+
+   Returns a new instance of gdb_block, which, as of now, has no use.
+   Note that the gdb_block returned must not be freed by the
+   caller.  */
+
+typedef struct gdb_block *(gdb_block_open) (struct gdb_symbol_callbacks *cb,
+                                            struct gdb_symtab *symtab,
+                                            struct gdb_block *parent,
+                                            GDB_CORE_ADDR begin,
+                                            GDB_CORE_ADDR end,
+                                            const char *name);
+
+/* Adds a PC to line number mapping for the symbol table SYMTAB.
+   NLINES is the number of elements in LINES, each element
+   corresponding to one (PC, line) pair.  */
+
+typedef void (gdb_symtab_add_line_mapping) (struct gdb_symbol_callbacks *cb,
+                                            struct gdb_symtab *symtab,
+                                            int nlines,
+                                            struct gdb_line_mapping *lines);
+
+/* Close the symtab SYMTAB.  This signals to GDB that no more blocks
+   will be opened on this symtab.  */
+
+typedef void (gdb_symtab_close) (struct gdb_symbol_callbacks *cb,
+                                 struct gdb_symtab *symtab);
+
+
+/* Closes the gdb_object OBJ and adds the emitted information into
+   GDB's internal structures.  Once this is done, the debug
+   information will be picked up and used; this will usually be the
+   last operation in gdb_read_debug_info.  */
+
+typedef void (gdb_object_close) (struct gdb_symbol_callbacks *cb,
+                                 struct gdb_object *obj);
+
+/* Reads LEN bytes from TARGET_MEM in the target's virtual address
+   space into GDB_BUF.
+
+   Returns GDB_FAIL on failure, and GDB_SUCCESS on success.  */
+
+typedef enum gdb_status (gdb_target_read) (GDB_CORE_ADDR target_mem,
+                                           void *gdb_buf, int len);
+
+/* The list of callbacks that are passed to read.  These callbacks are
+   to be used to construct the symbol table.  The functions have been
+   described above.  */
+
+struct gdb_symbol_callbacks
+{
+  gdb_object_open *object_open;
+  gdb_symtab_open *symtab_open;
+  gdb_block_open *block_open;
+  gdb_symtab_close *symtab_close;
+  gdb_object_close *object_close;
+
+  gdb_symtab_add_line_mapping *line_mapping_add;
+  gdb_target_read *target_read;
+
+  /* For internal use by GDB.  */
+  void *priv_data;
+};
+
+/* Forward declaration.  */
+
+struct gdb_reg_value;
+
+/* A function of this type is used to free a gdb_reg_value.  See the
+   comment on `free' in struct gdb_reg_value.  */
+
+typedef void (gdb_reg_value_free) (struct gdb_reg_value *);
+
+/* Denotes the value of a register.  */
+
+struct gdb_reg_value
+{
+  /* The size of the register in bytes.  The reader need not set this
+     field.  This will be set for (defined) register values being read
+     from GDB using reg_get.  */
+  int size;
+
+  /* Set to non-zero if the value for the register is known.  The
+     registers for which the reader does not call reg_set are also
+     assumed to be undefined */
+  int defined;
+
+  /* Since gdb_reg_value is a variable sized structure, it will
+     usually be allocated on the heap.  This function is expected to
+     contain the corresponding "free" function.
+
+     When a pointer to gdb_reg_value is being sent from GDB to the
+     reader (via gdb_unwind_reg_get), the reader is expected to call
+     this function (with the same gdb_reg_value as argument) once it
+     is done with the value.
+
+     When the function sends the a gdb_reg_value to GDB (via
+     gdb_unwind_reg_set), it is expected to set this field to point to
+     an appropriate cleanup routine (or to NULL if no cleanup is
+     required).  */
+  gdb_reg_value_free *free;
+
+  /* The value of the register.  */
+  unsigned char value[1];
+};
+
+/* get_frame_id in gdb_reader_funcs is to return a gdb_frame_id
+   corresponding to the current frame.  The registers corresponding to
+   the current frame can be read using reg_get.  Calling get_frame_id
+   on a particular frame should return the same gdb_frame_id
+   throughout its lifetime (i.e. till before it gets unwound).  One
+   way to do this is by having the CODE_ADDRESS point to the
+   function's first instruction and STACK_ADDRESS point to the value
+   of the stack pointer when entering the function.  */
+
+struct gdb_frame_id
+{
+  GDB_CORE_ADDR code_address;
+  GDB_CORE_ADDR stack_address;
+};
+
+/* Forward declaration.  */
+
+struct gdb_unwind_callbacks;
+
+/* Returns the value of a particular register in the current frame.
+   The current frame is the frame that needs to be unwound into the
+   outer (earlier) frame.
+
+   CB is the struct gdb_unwind_callbacks * the callback belongs to.
+   REGNUM is the DWARF register number of the register that needs to
+   be unwound.
+
+   Returns the gdb_reg_value corresponding to the register requested.
+   In case the value of the register has been optimized away or
+   otherwise unavailable, the defined flag in the returned
+   gdb_reg_value will be zero.  */
+
+typedef struct gdb_reg_value *(gdb_unwind_reg_get)
+                              (struct gdb_unwind_callbacks *cb, int regnum);
+
+/* Sets the previous value of a particular register.  REGNUM is the
+   (DWARF) register number whose value is to be set.  VAL is the value
+   the register is to be set to.
+
+   VAL is *not* copied, so the memory allocated to it cannot be
+   reused.  Once GDB no longer needs the value, it is deallocated
+   using the FREE function (see gdb_reg_value).
+
+   A register can also be "set" to an undefined value by setting the
+   defined in VAL to zero.  */
+
+typedef void (gdb_unwind_reg_set) (struct gdb_unwind_callbacks *cb, int regnum,
+                                   struct gdb_reg_value *val);
+
+/* This struct is passed to unwind in gdb_reader_funcs, and is to be
+   used to unwind the current frame (current being the frame whose
+   registers can be read using reg_get) into the earlier frame.  The
+   functions have been described above.  */
+
+struct gdb_unwind_callbacks
+{
+  gdb_unwind_reg_get *reg_get;
+  gdb_unwind_reg_set *reg_set;
+  gdb_target_read *target_read;
+
+  /* For internal use by GDB.  */
+  void *priv_data;
+};
+
+/* Forward declaration.  */
+
+struct gdb_reader_funcs;
+
+/* Parse the debug info off a block of memory, pointed to by MEMORY
+   (already copied to GDB's address space) and MEMORY_SZ bytes long.
+   The implementation has to use the functions in CB to actually emit
+   the parsed data into GDB.  SELF is the same structure returned by
+   gdb_init_reader.
+
+   Return GDB_FAIL on failure and GDB_SUCCESS on success.  */
+
+typedef enum gdb_status (gdb_read_debug_info) (struct gdb_reader_funcs *self,
+                                               struct gdb_symbol_callbacks *cb,
+                                               void *memory, long memory_sz);
+
+/* Unwind the current frame, CB is the set of unwind callbacks that
+   are to be used to do this.
+
+   Return GDB_FAIL on failure and GDB_SUCCESS on success.  */
+
+typedef enum gdb_status (gdb_unwind_frame) (struct gdb_reader_funcs *self,
+                                            struct gdb_unwind_callbacks *cb);
+
+/* Return the frame ID corresponding to the current frame, using C to
+   read the current register values.  See the comment on struct
+   gdb_frame_id.  */
+
+typedef struct gdb_frame_id (gdb_get_frame_id) (struct gdb_reader_funcs *self,
+                                                struct gdb_unwind_callbacks *c);
+
+/* Called when a reader is being unloaded.  This function should also
+   free SELF, if required.  */
+
+typedef void (gdb_destroy_reader) (struct gdb_reader_funcs *self);
+
+/* Called when the reader is loaded.  Must either return a properly
+   populated gdb_reader_funcs or NULL.  The memory allocated for the
+   gdb_reader_funcs is to be managed by the reader itself (i.e. if it
+   is allocated from the heap, it must also be freed in
+   gdb_destroy_reader).  */
+
+extern struct gdb_reader_funcs *gdb_init_reader (void);
+
+/* Pointer to the functions which implement the reader's
+   functionality.  The individual functions have been documented
+   above.
+
+   None of the fields are optional.  */
+
+struct gdb_reader_funcs
+{
+  /* Must be set to GDB_READER_INTERFACE_VERSION.  */
+  int reader_version;
+
+  /* For use by the reader.  */
+  void *priv_data;
+
+  gdb_read_debug_info *read;
+  gdb_unwind_frame *unwind;
+  gdb_get_frame_id *get_frame_id;
+  gdb_destroy_reader *destroy;
+};
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif

lib/gcc/riscv64-unknown-elf/10.1.0/include-fixed/README

@@ -0,0 +1,14 @@
+This README file is copied into the directory for GCC-only header files
+when fixincludes is run by the makefile for GCC.
+
+Many of the files in this directory were automatically edited from the
+standard system header files by the fixincludes process.  They are
+system-specific, and will not work on any other kind of system.  They
+are also not part of GCC.  The reason we have to do this is because
+GCC requires ANSI C headers and many vendors supply ANSI-incompatible
+headers.
+
+Because this is an automated process, sometimes headers get "fixed"
+that do not, strictly speaking, need a fix.  As long as nothing is broken
+by the process, it is just an unfortunate collateral inconvenience.
+We would like to rectify it, if it is not "too inconvenient".

lib/gcc/riscv64-unknown-elf/10.1.0/include-fixed/limits.h

@@ -0,0 +1,198 @@
+/* Copyright (C) 1992-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/* This administrivia gets added to the beginning of limits.h
+   if the system has its own version of limits.h.  */
+
+/* We use _GCC_LIMITS_H_ because we want this not to match
+   any macros that the system's limits.h uses for its own purposes.  */
+#ifndef _GCC_LIMITS_H_  /* Terminated in limity.h.  */
+#define _GCC_LIMITS_H_
+
+#ifndef _LIBC_LIMITS_H_
+/* Use "..." so that we find syslimits.h only in this same directory.  */
+#include "syslimits.h"
+#endif
+/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef _LIMITS_H___
+#define _LIMITS_H___
+
+/* Number of bits in a `char'.  */
+#undef CHAR_BIT
+#define CHAR_BIT __CHAR_BIT__
+
+/* Maximum length of a multibyte character.  */
+#ifndef MB_LEN_MAX
+#define MB_LEN_MAX 1
+#endif
+
+/* Minimum and maximum values a `signed char' can hold.  */
+#undef SCHAR_MIN
+#define SCHAR_MIN (-SCHAR_MAX - 1)
+#undef SCHAR_MAX
+#define SCHAR_MAX __SCHAR_MAX__
+
+/* Maximum value an `unsigned char' can hold.  (Minimum is 0).  */
+#undef UCHAR_MAX
+#if __SCHAR_MAX__ == __INT_MAX__
+# define UCHAR_MAX (SCHAR_MAX * 2U + 1U)
+#else
+# define UCHAR_MAX (SCHAR_MAX * 2 + 1)
+#endif
+
+/* Minimum and maximum values a `char' can hold.  */
+#ifdef __CHAR_UNSIGNED__
+# undef CHAR_MIN
+# if __SCHAR_MAX__ == __INT_MAX__
+#  define CHAR_MIN 0U
+# else
+#  define CHAR_MIN 0
+# endif
+# undef CHAR_MAX
+# define CHAR_MAX UCHAR_MAX
+#else
+# undef CHAR_MIN
+# define CHAR_MIN SCHAR_MIN
+# undef CHAR_MAX
+# define CHAR_MAX SCHAR_MAX
+#endif
+
+/* Minimum and maximum values a `signed short int' can hold.  */
+#undef SHRT_MIN
+#define SHRT_MIN (-SHRT_MAX - 1)
+#undef SHRT_MAX
+#define SHRT_MAX __SHRT_MAX__
+
+/* Maximum value an `unsigned short int' can hold.  (Minimum is 0).  */
+#undef USHRT_MAX
+#if __SHRT_MAX__ == __INT_MAX__
+# define USHRT_MAX (SHRT_MAX * 2U + 1U)
+#else
+# define USHRT_MAX (SHRT_MAX * 2 + 1)
+#endif
+
+/* Minimum and maximum values a `signed int' can hold.  */
+#undef INT_MIN
+#define INT_MIN (-INT_MAX - 1)
+#undef INT_MAX
+#define INT_MAX __INT_MAX__
+
+/* Maximum value an `unsigned int' can hold.  (Minimum is 0).  */
+#undef UINT_MAX
+#define UINT_MAX (INT_MAX * 2U + 1U)
+
+/* Minimum and maximum values a `signed long int' can hold.
+   (Same as `int').  */
+#undef LONG_MIN
+#define LONG_MIN (-LONG_MAX - 1L)
+#undef LONG_MAX
+#define LONG_MAX __LONG_MAX__
+
+/* Maximum value an `unsigned long int' can hold.  (Minimum is 0).  */
+#undef ULONG_MAX
+#define ULONG_MAX (LONG_MAX * 2UL + 1UL)
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+/* Minimum and maximum values a `signed long long int' can hold.  */
+# undef LLONG_MIN
+# define LLONG_MIN (-LLONG_MAX - 1LL)
+# undef LLONG_MAX
+# define LLONG_MAX __LONG_LONG_MAX__
+
+/* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
+# undef ULLONG_MAX
+# define ULLONG_MAX (LLONG_MAX * 2ULL + 1ULL)
+#endif
+
+#if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
+/* Minimum and maximum values a `signed long long int' can hold.  */
+# undef LONG_LONG_MIN
+# define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL)
+# undef LONG_LONG_MAX
+# define LONG_LONG_MAX __LONG_LONG_MAX__
+
+/* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
+# undef ULONG_LONG_MAX
+# define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1ULL)
+#endif
+
+#if (defined __STDC_WANT_IEC_60559_BFP_EXT__ \
+     || (defined (__STDC_VERSION__) && __STDC_VERSION__ > 201710L))
+/* TS 18661-1 / C2X widths of integer types.  */
+# undef CHAR_WIDTH
+# define CHAR_WIDTH __SCHAR_WIDTH__
+# undef SCHAR_WIDTH
+# define SCHAR_WIDTH __SCHAR_WIDTH__
+# undef UCHAR_WIDTH
+# define UCHAR_WIDTH __SCHAR_WIDTH__
+# undef SHRT_WIDTH
+# define SHRT_WIDTH __SHRT_WIDTH__
+# undef USHRT_WIDTH
+# define USHRT_WIDTH __SHRT_WIDTH__
+# undef INT_WIDTH
+# define INT_WIDTH __INT_WIDTH__
+# undef UINT_WIDTH
+# define UINT_WIDTH __INT_WIDTH__
+# undef LONG_WIDTH
+# define LONG_WIDTH __LONG_WIDTH__
+# undef ULONG_WIDTH
+# define ULONG_WIDTH __LONG_WIDTH__
+# undef LLONG_WIDTH
+# define LLONG_WIDTH __LONG_LONG_WIDTH__
+# undef ULLONG_WIDTH
+# define ULLONG_WIDTH __LONG_LONG_WIDTH__
+#endif
+
+#endif /* _LIMITS_H___ */
+/* This administrivia gets added to the end of limits.h
+   if the system has its own version of limits.h.  */
+
+#else /* not _GCC_LIMITS_H_ */
+
+#ifdef _GCC_NEXT_LIMITS_H
+#include_next <limits.h>		/* recurse down to the real one */
+#endif
+
+#endif /* not _GCC_LIMITS_H_ */

lib/gcc/riscv64-unknown-elf/10.1.0/include-fixed/syslimits.h

@@ -0,0 +1,8 @@
+/* syslimits.h stands for the system's own limits.h file.
+   If we can use it ok unmodified, then we install this text.
+   If fixincludes fixes it, then the fixed version is installed
+   instead of this text.  */
+
+#define _GCC_NEXT_LIMITS_H		/* tell gcc's limits.h to recurse */
+#include_next <limits.h>
+#undef _GCC_NEXT_LIMITS_H

lib/gcc/riscv64-unknown-elf/10.1.0/include/float.h

@@ -0,0 +1,542 @@
+/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO C Standard:  5.2.4.2.2  Characteristics of floating types <float.h>
+ */
+
+#ifndef _FLOAT_H___
+#define _FLOAT_H___
+
+/* Radix of exponent representation, b. */
+#undef FLT_RADIX
+#define FLT_RADIX	__FLT_RADIX__
+
+/* Number of base-FLT_RADIX digits in the significand, p.  */
+#undef FLT_MANT_DIG
+#undef DBL_MANT_DIG
+#undef LDBL_MANT_DIG
+#define FLT_MANT_DIG	__FLT_MANT_DIG__
+#define DBL_MANT_DIG	__DBL_MANT_DIG__
+#define LDBL_MANT_DIG	__LDBL_MANT_DIG__
+
+/* Number of decimal digits, q, such that any floating-point number with q
+   decimal digits can be rounded into a floating-point number with p radix b
+   digits and back again without change to the q decimal digits,
+
+	p * log10(b)			if b is a power of 10
+	floor((p - 1) * log10(b))	otherwise
+*/
+#undef FLT_DIG
+#undef DBL_DIG
+#undef LDBL_DIG
+#define FLT_DIG		__FLT_DIG__
+#define DBL_DIG		__DBL_DIG__
+#define LDBL_DIG	__LDBL_DIG__
+
+/* Minimum int x such that FLT_RADIX**(x-1) is a normalized float, emin */
+#undef FLT_MIN_EXP
+#undef DBL_MIN_EXP
+#undef LDBL_MIN_EXP
+#define FLT_MIN_EXP	__FLT_MIN_EXP__
+#define DBL_MIN_EXP	__DBL_MIN_EXP__
+#define LDBL_MIN_EXP	__LDBL_MIN_EXP__
+
+/* Minimum negative integer such that 10 raised to that power is in the
+   range of normalized floating-point numbers,
+
+	ceil(log10(b) * (emin - 1))
+*/
+#undef FLT_MIN_10_EXP
+#undef DBL_MIN_10_EXP
+#undef LDBL_MIN_10_EXP
+#define FLT_MIN_10_EXP	__FLT_MIN_10_EXP__
+#define DBL_MIN_10_EXP	__DBL_MIN_10_EXP__
+#define LDBL_MIN_10_EXP	__LDBL_MIN_10_EXP__
+
+/* Maximum int x such that FLT_RADIX**(x-1) is a representable float, emax.  */
+#undef FLT_MAX_EXP
+#undef DBL_MAX_EXP
+#undef LDBL_MAX_EXP
+#define FLT_MAX_EXP	__FLT_MAX_EXP__
+#define DBL_MAX_EXP	__DBL_MAX_EXP__
+#define LDBL_MAX_EXP	__LDBL_MAX_EXP__
+
+/* Maximum integer such that 10 raised to that power is in the range of
+   representable finite floating-point numbers,
+
+	floor(log10((1 - b**-p) * b**emax))
+*/
+#undef FLT_MAX_10_EXP
+#undef DBL_MAX_10_EXP
+#undef LDBL_MAX_10_EXP
+#define FLT_MAX_10_EXP	__FLT_MAX_10_EXP__
+#define DBL_MAX_10_EXP	__DBL_MAX_10_EXP__
+#define LDBL_MAX_10_EXP	__LDBL_MAX_10_EXP__
+
+/* Maximum representable finite floating-point number,
+
+	(1 - b**-p) * b**emax
+*/
+#undef FLT_MAX
+#undef DBL_MAX
+#undef LDBL_MAX
+#define FLT_MAX		__FLT_MAX__
+#define DBL_MAX		__DBL_MAX__
+#define LDBL_MAX	__LDBL_MAX__
+
+/* The difference between 1 and the least value greater than 1 that is
+   representable in the given floating point type, b**1-p.  */
+#undef FLT_EPSILON
+#undef DBL_EPSILON
+#undef LDBL_EPSILON
+#define FLT_EPSILON	__FLT_EPSILON__
+#define DBL_EPSILON	__DBL_EPSILON__
+#define LDBL_EPSILON	__LDBL_EPSILON__
+
+/* Minimum normalized positive floating-point number, b**(emin - 1).  */
+#undef FLT_MIN
+#undef DBL_MIN
+#undef LDBL_MIN
+#define FLT_MIN		__FLT_MIN__
+#define DBL_MIN		__DBL_MIN__
+#define LDBL_MIN	__LDBL_MIN__
+
+/* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown.  */
+/* ??? This is supposed to change with calls to fesetround in <fenv.h>.  */
+#undef FLT_ROUNDS
+#define FLT_ROUNDS 1
+
+#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \
+     || (defined (__cplusplus) && __cplusplus >= 201103L)
+/* The floating-point expression evaluation method.  The precise
+   definitions of these values are generalised to include support for
+   the interchange and extended types defined in ISO/IEC TS 18661-3.
+   Prior to this (for C99/C11) the definitions were:
+
+	-1  indeterminate
+	 0  evaluate all operations and constants just to the range and
+	    precision of the type
+	 1  evaluate operations and constants of type float and double
+	    to the range and precision of the double type, evaluate
+	    long double operations and constants to the range and
+	    precision of the long double type
+	 2  evaluate all operations and constants to the range and
+	    precision of the long double type
+
+   The TS 18661-3 definitions are:
+
+	-1  indeterminate
+	 0  evaluate all operations and constants, whose semantic type has
+	    at most the range and precision of float, to the range and
+	    precision of float; evaluate all other operations and constants
+	    to the range and precision of the semantic type.
+	 1  evaluate all operations and constants, whose semantic type has
+	    at most the range and precision of double, to the range and
+	    precision of double; evaluate all other operations and constants
+	    to the range and precision of the semantic type.
+	 2  evaluate all operations and constants, whose semantic type has
+	    at most the range and precision of long double, to the range and
+	    precision of long double; evaluate all other operations and
+	    constants to the range and precision of the semantic type.
+	 N  where _FloatN  is a supported interchange floating type
+	    evaluate all operations and constants, whose semantic type has
+	    at most the range and precision of the _FloatN type, to the
+	    range and precision of the _FloatN type; evaluate all other
+	    operations and constants to the range and precision of the
+	    semantic type.
+	 N + 1, where _FloatNx is a supported extended floating type
+	    evaluate operations and constants, whose semantic type has at
+	    most the range and precision of the _FloatNx type, to the range
+	    and precision of the _FloatNx type; evaluate all other
+	    operations and constants to the range and precision of the
+	    semantic type.
+
+   The compiler predefines two macros:
+
+      __FLT_EVAL_METHOD__
+      Which, depending on the value given for
+      -fpermitted-flt-eval-methods, may be limited to only those values
+      for FLT_EVAL_METHOD defined in C99/C11.
+
+     __FLT_EVAL_METHOD_TS_18661_3__
+      Which always permits the values for FLT_EVAL_METHOD defined in
+      ISO/IEC TS 18661-3.
+
+     Here we want to use __FLT_EVAL_METHOD__, unless
+     __STDC_WANT_IEC_60559_TYPES_EXT__ is defined, in which case the user
+     is specifically asking for the ISO/IEC TS 18661-3 types, so we use
+     __FLT_EVAL_METHOD_TS_18661_3__.
+
+   ??? This ought to change with the setting of the fp control word;
+   the value provided by the compiler assumes the widest setting.  */
+#undef FLT_EVAL_METHOD
+#ifdef __STDC_WANT_IEC_60559_TYPES_EXT__
+#define FLT_EVAL_METHOD __FLT_EVAL_METHOD_TS_18661_3__
+#else
+#define FLT_EVAL_METHOD	__FLT_EVAL_METHOD__
+#endif
+
+/* Number of decimal digits, n, such that any floating-point number in the
+   widest supported floating type with pmax radix b digits can be rounded
+   to a floating-point number with n decimal digits and back again without
+   change to the value,
+
+	pmax * log10(b)			if b is a power of 10
+	ceil(1 + pmax * log10(b))	otherwise
+*/
+#undef DECIMAL_DIG
+#define DECIMAL_DIG	__DECIMAL_DIG__
+
+#endif /* C99 */
+
+#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \
+     || (defined (__cplusplus) && __cplusplus >= 201703L)
+/* Versions of DECIMAL_DIG for each floating-point type.  */
+#undef FLT_DECIMAL_DIG
+#undef DBL_DECIMAL_DIG
+#undef LDBL_DECIMAL_DIG
+#define FLT_DECIMAL_DIG		__FLT_DECIMAL_DIG__
+#define DBL_DECIMAL_DIG		__DBL_DECIMAL_DIG__
+#define LDBL_DECIMAL_DIG	__LDBL_DECIMAL_DIG__
+
+/* Whether types support subnormal numbers.  */
+#undef FLT_HAS_SUBNORM
+#undef DBL_HAS_SUBNORM
+#undef LDBL_HAS_SUBNORM
+#define FLT_HAS_SUBNORM		__FLT_HAS_DENORM__
+#define DBL_HAS_SUBNORM		__DBL_HAS_DENORM__
+#define LDBL_HAS_SUBNORM	__LDBL_HAS_DENORM__
+
+/* Minimum positive values, including subnormals.  */
+#undef FLT_TRUE_MIN
+#undef DBL_TRUE_MIN
+#undef LDBL_TRUE_MIN
+#define FLT_TRUE_MIN	__FLT_DENORM_MIN__
+#define DBL_TRUE_MIN	__DBL_DENORM_MIN__
+#define LDBL_TRUE_MIN	__LDBL_DENORM_MIN__
+
+#endif /* C11 */
+
+#if defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L
+/* Maximum finite positive value with MANT_DIG digits in the
+   significand taking their maximum value.  */
+#undef FLT_NORM_MAX
+#undef DBL_NORM_MAX
+#undef LDBL_NORM_MAX
+#define FLT_NORM_MAX	__FLT_NORM_MAX__
+#define DBL_NORM_MAX	__DBL_NORM_MAX__
+#define LDBL_NORM_MAX	__LDBL_NORM_MAX__
+
+#endif /* C2X */
+
+#ifdef __STDC_WANT_IEC_60559_BFP_EXT__
+/* Number of decimal digits for which conversions between decimal
+   character strings and binary formats, in both directions, are
+   correctly rounded.  */
+#define CR_DECIMAL_DIG	__UINTMAX_MAX__
+#endif
+
+#ifdef __STDC_WANT_IEC_60559_TYPES_EXT__
+/* Constants for _FloatN and _FloatNx types from TS 18661-3.  See
+   comments above for their semantics.  */
+
+#ifdef __FLT16_MANT_DIG__
+#undef FLT16_MANT_DIG
+#define FLT16_MANT_DIG		__FLT16_MANT_DIG__
+#undef FLT16_DIG
+#define FLT16_DIG		__FLT16_DIG__
+#undef FLT16_MIN_EXP
+#define FLT16_MIN_EXP		__FLT16_MIN_EXP__
+#undef FLT16_MIN_10_EXP
+#define FLT16_MIN_10_EXP	__FLT16_MIN_10_EXP__
+#undef FLT16_MAX_EXP
+#define FLT16_MAX_EXP		__FLT16_MAX_EXP__
+#undef FLT16_MAX_10_EXP
+#define FLT16_MAX_10_EXP	__FLT16_MAX_10_EXP__
+#undef FLT16_MAX
+#define FLT16_MAX		__FLT16_MAX__
+#undef FLT16_EPSILON
+#define FLT16_EPSILON		__FLT16_EPSILON__
+#undef FLT16_MIN
+#define FLT16_MIN		__FLT16_MIN__
+#undef FLT16_DECIMAL_DIG
+#define FLT16_DECIMAL_DIG	__FLT16_DECIMAL_DIG__
+#undef FLT16_TRUE_MIN
+#define FLT16_TRUE_MIN		__FLT16_DENORM_MIN__
+#endif /* __FLT16_MANT_DIG__.  */
+
+#ifdef __FLT32_MANT_DIG__
+#undef FLT32_MANT_DIG
+#define FLT32_MANT_DIG		__FLT32_MANT_DIG__
+#undef FLT32_DIG
+#define FLT32_DIG		__FLT32_DIG__
+#undef FLT32_MIN_EXP
+#define FLT32_MIN_EXP		__FLT32_MIN_EXP__
+#undef FLT32_MIN_10_EXP
+#define FLT32_MIN_10_EXP	__FLT32_MIN_10_EXP__
+#undef FLT32_MAX_EXP
+#define FLT32_MAX_EXP		__FLT32_MAX_EXP__
+#undef FLT32_MAX_10_EXP
+#define FLT32_MAX_10_EXP	__FLT32_MAX_10_EXP__
+#undef FLT32_MAX
+#define FLT32_MAX		__FLT32_MAX__
+#undef FLT32_EPSILON
+#define FLT32_EPSILON		__FLT32_EPSILON__
+#undef FLT32_MIN
+#define FLT32_MIN		__FLT32_MIN__
+#undef FLT32_DECIMAL_DIG
+#define FLT32_DECIMAL_DIG	__FLT32_DECIMAL_DIG__
+#undef FLT32_TRUE_MIN
+#define FLT32_TRUE_MIN		__FLT32_DENORM_MIN__
+#endif /* __FLT32_MANT_DIG__.  */
+
+#ifdef __FLT64_MANT_DIG__
+#undef FLT64_MANT_DIG
+#define FLT64_MANT_DIG		__FLT64_MANT_DIG__
+#undef FLT64_DIG
+#define FLT64_DIG		__FLT64_DIG__
+#undef FLT64_MIN_EXP
+#define FLT64_MIN_EXP		__FLT64_MIN_EXP__
+#undef FLT64_MIN_10_EXP
+#define FLT64_MIN_10_EXP	__FLT64_MIN_10_EXP__
+#undef FLT64_MAX_EXP
+#define FLT64_MAX_EXP		__FLT64_MAX_EXP__
+#undef FLT64_MAX_10_EXP
+#define FLT64_MAX_10_EXP	__FLT64_MAX_10_EXP__
+#undef FLT64_MAX
+#define FLT64_MAX		__FLT64_MAX__
+#undef FLT64_EPSILON
+#define FLT64_EPSILON		__FLT64_EPSILON__
+#undef FLT64_MIN
+#define FLT64_MIN		__FLT64_MIN__
+#undef FLT64_DECIMAL_DIG
+#define FLT64_DECIMAL_DIG	__FLT64_DECIMAL_DIG__
+#undef FLT64_TRUE_MIN
+#define FLT64_TRUE_MIN		__FLT64_DENORM_MIN__
+#endif /* __FLT64_MANT_DIG__.  */
+
+#ifdef __FLT128_MANT_DIG__
+#undef FLT128_MANT_DIG
+#define FLT128_MANT_DIG		__FLT128_MANT_DIG__
+#undef FLT128_DIG
+#define FLT128_DIG		__FLT128_DIG__
+#undef FLT128_MIN_EXP
+#define FLT128_MIN_EXP		__FLT128_MIN_EXP__
+#undef FLT128_MIN_10_EXP
+#define FLT128_MIN_10_EXP	__FLT128_MIN_10_EXP__
+#undef FLT128_MAX_EXP
+#define FLT128_MAX_EXP		__FLT128_MAX_EXP__
+#undef FLT128_MAX_10_EXP
+#define FLT128_MAX_10_EXP	__FLT128_MAX_10_EXP__
+#undef FLT128_MAX
+#define FLT128_MAX		__FLT128_MAX__
+#undef FLT128_EPSILON
+#define FLT128_EPSILON		__FLT128_EPSILON__
+#undef FLT128_MIN
+#define FLT128_MIN		__FLT128_MIN__
+#undef FLT128_DECIMAL_DIG
+#define FLT128_DECIMAL_DIG	__FLT128_DECIMAL_DIG__
+#undef FLT128_TRUE_MIN
+#define FLT128_TRUE_MIN		__FLT128_DENORM_MIN__
+#endif /* __FLT128_MANT_DIG__.  */
+
+#ifdef __FLT32X_MANT_DIG__
+#undef FLT32X_MANT_DIG
+#define FLT32X_MANT_DIG		__FLT32X_MANT_DIG__
+#undef FLT32X_DIG
+#define FLT32X_DIG		__FLT32X_DIG__
+#undef FLT32X_MIN_EXP
+#define FLT32X_MIN_EXP		__FLT32X_MIN_EXP__
+#undef FLT32X_MIN_10_EXP
+#define FLT32X_MIN_10_EXP	__FLT32X_MIN_10_EXP__
+#undef FLT32X_MAX_EXP
+#define FLT32X_MAX_EXP		__FLT32X_MAX_EXP__
+#undef FLT32X_MAX_10_EXP
+#define FLT32X_MAX_10_EXP	__FLT32X_MAX_10_EXP__
+#undef FLT32X_MAX
+#define FLT32X_MAX		__FLT32X_MAX__
+#undef FLT32X_EPSILON
+#define FLT32X_EPSILON		__FLT32X_EPSILON__
+#undef FLT32X_MIN
+#define FLT32X_MIN		__FLT32X_MIN__
+#undef FLT32X_DECIMAL_DIG
+#define FLT32X_DECIMAL_DIG	__FLT32X_DECIMAL_DIG__
+#undef FLT32X_TRUE_MIN
+#define FLT32X_TRUE_MIN		__FLT32X_DENORM_MIN__
+#endif /* __FLT32X_MANT_DIG__.  */
+
+#ifdef __FLT64X_MANT_DIG__
+#undef FLT64X_MANT_DIG
+#define FLT64X_MANT_DIG		__FLT64X_MANT_DIG__
+#undef FLT64X_DIG
+#define FLT64X_DIG		__FLT64X_DIG__
+#undef FLT64X_MIN_EXP
+#define FLT64X_MIN_EXP		__FLT64X_MIN_EXP__
+#undef FLT64X_MIN_10_EXP
+#define FLT64X_MIN_10_EXP	__FLT64X_MIN_10_EXP__
+#undef FLT64X_MAX_EXP
+#define FLT64X_MAX_EXP		__FLT64X_MAX_EXP__
+#undef FLT64X_MAX_10_EXP
+#define FLT64X_MAX_10_EXP	__FLT64X_MAX_10_EXP__
+#undef FLT64X_MAX
+#define FLT64X_MAX		__FLT64X_MAX__
+#undef FLT64X_EPSILON
+#define FLT64X_EPSILON		__FLT64X_EPSILON__
+#undef FLT64X_MIN
+#define FLT64X_MIN		__FLT64X_MIN__
+#undef FLT64X_DECIMAL_DIG
+#define FLT64X_DECIMAL_DIG	__FLT64X_DECIMAL_DIG__
+#undef FLT64X_TRUE_MIN
+#define FLT64X_TRUE_MIN		__FLT64X_DENORM_MIN__
+#endif /* __FLT64X_MANT_DIG__.  */
+
+#ifdef __FLT128X_MANT_DIG__
+#undef FLT128X_MANT_DIG
+#define FLT128X_MANT_DIG	__FLT128X_MANT_DIG__
+#undef FLT128X_DIG
+#define FLT128X_DIG		__FLT128X_DIG__
+#undef FLT128X_MIN_EXP
+#define FLT128X_MIN_EXP		__FLT128X_MIN_EXP__
+#undef FLT128X_MIN_10_EXP
+#define FLT128X_MIN_10_EXP	__FLT128X_MIN_10_EXP__
+#undef FLT128X_MAX_EXP
+#define FLT128X_MAX_EXP		__FLT128X_MAX_EXP__
+#undef FLT128X_MAX_10_EXP
+#define FLT128X_MAX_10_EXP	__FLT128X_MAX_10_EXP__
+#undef FLT128X_MAX
+#define FLT128X_MAX		__FLT128X_MAX__
+#undef FLT128X_EPSILON
+#define FLT128X_EPSILON		__FLT128X_EPSILON__
+#undef FLT128X_MIN
+#define FLT128X_MIN		__FLT128X_MIN__
+#undef FLT128X_DECIMAL_DIG
+#define FLT128X_DECIMAL_DIG	__FLT128X_DECIMAL_DIG__
+#undef FLT128X_TRUE_MIN
+#define FLT128X_TRUE_MIN	__FLT128X_DENORM_MIN__
+#endif /* __FLT128X_MANT_DIG__.  */
+
+#endif /* __STDC_WANT_IEC_60559_TYPES_EXT__.  */
+
+#ifdef __DEC32_MANT_DIG__
+#if (defined __STDC_WANT_DEC_FP__ \
+     || defined __STDC_WANT_IEC_60559_DFP_EXT__ \
+     || (defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L))
+/* C2X; formerly Technical Report 24732, extension for decimal
+   floating-point arithmetic: Characteristic of decimal floating types
+   <float.h>, and TS 18661-2.  */
+
+/* Number of base-FLT_RADIX digits in the significand, p.  */
+#undef DEC32_MANT_DIG
+#undef DEC64_MANT_DIG
+#undef DEC128_MANT_DIG
+#define DEC32_MANT_DIG	__DEC32_MANT_DIG__
+#define DEC64_MANT_DIG	__DEC64_MANT_DIG__
+#define DEC128_MANT_DIG	__DEC128_MANT_DIG__
+
+/* Minimum exponent. */
+#undef DEC32_MIN_EXP
+#undef DEC64_MIN_EXP
+#undef DEC128_MIN_EXP
+#define DEC32_MIN_EXP	__DEC32_MIN_EXP__
+#define DEC64_MIN_EXP	__DEC64_MIN_EXP__
+#define DEC128_MIN_EXP	__DEC128_MIN_EXP__
+
+/* Maximum exponent. */
+#undef DEC32_MAX_EXP
+#undef DEC64_MAX_EXP
+#undef DEC128_MAX_EXP
+#define DEC32_MAX_EXP	__DEC32_MAX_EXP__
+#define DEC64_MAX_EXP	__DEC64_MAX_EXP__
+#define DEC128_MAX_EXP	__DEC128_MAX_EXP__
+
+/* Maximum representable finite decimal floating-point number
+   (there are 6, 15, and 33 9s after the decimal points respectively). */
+#undef DEC32_MAX
+#undef DEC64_MAX
+#undef DEC128_MAX
+#define DEC32_MAX   __DEC32_MAX__
+#define DEC64_MAX   __DEC64_MAX__
+#define DEC128_MAX  __DEC128_MAX__
+
+/* The difference between 1 and the least value greater than 1 that is
+   representable in the given floating point type. */
+#undef DEC32_EPSILON
+#undef DEC64_EPSILON
+#undef DEC128_EPSILON
+#define DEC32_EPSILON	__DEC32_EPSILON__
+#define DEC64_EPSILON	__DEC64_EPSILON__
+#define DEC128_EPSILON	__DEC128_EPSILON__
+
+/* Minimum normalized positive floating-point number. */
+#undef DEC32_MIN
+#undef DEC64_MIN
+#undef DEC128_MIN
+#define DEC32_MIN	__DEC32_MIN__
+#define DEC64_MIN	__DEC64_MIN__
+#define DEC128_MIN	__DEC128_MIN__
+
+/* The floating-point expression evaluation method.
+         -1  indeterminate
+         0  evaluate all operations and constants just to the range and
+            precision of the type
+         1  evaluate operations and constants of type _Decimal32 
+	    and _Decimal64 to the range and precision of the _Decimal64 
+            type, evaluate _Decimal128 operations and constants to the 
+	    range and precision of the _Decimal128 type;
+	 2  evaluate all operations and constants to the range and
+	    precision of the _Decimal128 type.  */
+
+#undef DEC_EVAL_METHOD
+#define DEC_EVAL_METHOD	__DEC_EVAL_METHOD__
+
+#endif /* __STDC_WANT_DEC_FP__ || __STDC_WANT_IEC_60559_DFP_EXT__ || C2X.  */
+
+#ifdef __STDC_WANT_DEC_FP__
+
+/* Minimum subnormal positive floating-point number. */
+#undef DEC32_SUBNORMAL_MIN
+#undef DEC64_SUBNORMAL_MIN
+#undef DEC128_SUBNORMAL_MIN
+#define DEC32_SUBNORMAL_MIN       __DEC32_SUBNORMAL_MIN__
+#define DEC64_SUBNORMAL_MIN       __DEC64_SUBNORMAL_MIN__
+#define DEC128_SUBNORMAL_MIN      __DEC128_SUBNORMAL_MIN__
+
+#endif /* __STDC_WANT_DEC_FP__.  */
+
+#if (defined __STDC_WANT_IEC_60559_DFP_EXT__ \
+     || (defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L))
+
+/* Minimum subnormal positive floating-point number. */
+#undef DEC32_TRUE_MIN
+#undef DEC64_TRUE_MIN
+#undef DEC128_TRUE_MIN
+#define DEC32_TRUE_MIN       __DEC32_SUBNORMAL_MIN__
+#define DEC64_TRUE_MIN       __DEC64_SUBNORMAL_MIN__
+#define DEC128_TRUE_MIN      __DEC128_SUBNORMAL_MIN__
+
+#endif /* __STDC_WANT_IEC_60559_DFP_EXT__ || C2X.  */
+
+#endif /* __DEC32_MANT_DIG__ */
+
+#endif /* _FLOAT_H___ */

lib/gcc/riscv64-unknown-elf/10.1.0/include/gcov.h

@@ -0,0 +1,41 @@
+/* GCOV interface routines.
+   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free
+   Software Foundation; either version 3, or (at your option) any later
+   version.
+
+   GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+   for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_GCOV_H
+#define GCC_GCOV_H
+
+/* Set all counters to zero.  */
+
+extern void __gcov_reset (void);
+
+/* Write profile information to a file.  */
+
+extern void __gcov_dump (void);
+
+/* Write profile information to a file and reset counters to zero.
+   The function does operations under a mutex.  */
+
+extern void __gcov_flush (void);
+
+#endif /* GCC_GCOV_H */

lib/gcc/riscv64-unknown-elf/10.1.0/include/iso646.h

@@ -0,0 +1,45 @@
+/* Copyright (C) 1997-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO C Standard:  7.9  Alternative spellings  <iso646.h>
+ */
+
+#ifndef _ISO646_H
+#define _ISO646_H
+
+#ifndef __cplusplus
+#define and	&&
+#define and_eq	&=
+#define bitand	&
+#define bitor	|
+#define compl	~
+#define not	!
+#define not_eq	!=
+#define or	||
+#define or_eq	|=
+#define xor	^
+#define xor_eq	^=
+#endif
+
+#endif

lib/gcc/riscv64-unknown-elf/10.1.0/include/stdalign.h

@@ -0,0 +1,39 @@
+/* Copyright (C) 2011-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/* ISO C1X: 7.15 Alignment <stdalign.h>.  */
+
+#ifndef _STDALIGN_H
+#define _STDALIGN_H
+
+#ifndef __cplusplus
+
+#define alignas _Alignas
+#define alignof _Alignof
+
+#define __alignas_is_defined 1
+#define __alignof_is_defined 1
+
+#endif
+
+#endif	/* stdalign.h */

lib/gcc/riscv64-unknown-elf/10.1.0/include/stdarg.h

@@ -0,0 +1,127 @@
+/* Copyright (C) 1989-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO C Standard:  7.15  Variable arguments  <stdarg.h>
+ */
+
+#ifndef _STDARG_H
+#ifndef _ANSI_STDARG_H_
+#ifndef __need___va_list
+#define _STDARG_H
+#define _ANSI_STDARG_H_
+#endif /* not __need___va_list */
+#undef __need___va_list
+
+/* Define __gnuc_va_list.  */
+
+#ifndef __GNUC_VA_LIST
+#define __GNUC_VA_LIST
+typedef __builtin_va_list __gnuc_va_list;
+#endif
+
+/* Define the standard macros for the user,
+   if this invocation was from the user program.  */
+#ifdef _STDARG_H
+
+#define va_start(v,l)	__builtin_va_start(v,l)
+#define va_end(v)	__builtin_va_end(v)
+#define va_arg(v,l)	__builtin_va_arg(v,l)
+#if !defined(__STRICT_ANSI__) || __STDC_VERSION__ + 0 >= 199900L \
+    || __cplusplus + 0 >= 201103L
+#define va_copy(d,s)	__builtin_va_copy(d,s)
+#endif
+#define __va_copy(d,s)	__builtin_va_copy(d,s)
+
+/* Define va_list, if desired, from __gnuc_va_list. */
+/* We deliberately do not define va_list when called from
+   stdio.h, because ANSI C says that stdio.h is not supposed to define
+   va_list.  stdio.h needs to have access to that data type, 
+   but must not use that name.  It should use the name __gnuc_va_list,
+   which is safe because it is reserved for the implementation.  */
+
+#ifdef _BSD_VA_LIST
+#undef _BSD_VA_LIST
+#endif
+
+#if defined(__svr4__) || (defined(_SCO_DS) && !defined(__VA_LIST))
+/* SVR4.2 uses _VA_LIST for an internal alias for va_list,
+   so we must avoid testing it and setting it here.
+   SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
+   have no conflict with that.  */
+#ifndef _VA_LIST_
+#define _VA_LIST_
+#ifdef __i860__
+#ifndef _VA_LIST
+#define _VA_LIST va_list
+#endif
+#endif /* __i860__ */
+typedef __gnuc_va_list va_list;
+#ifdef _SCO_DS
+#define __VA_LIST
+#endif
+#endif /* _VA_LIST_ */
+#else /* not __svr4__ || _SCO_DS */
+
+/* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
+   But on BSD NET2 we must not test or define or undef it.
+   (Note that the comments in NET 2's ansi.h
+   are incorrect for _VA_LIST_--see stdio.h!)  */
+#if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__) || defined(WINNT)
+/* The macro _VA_LIST_DEFINED is used in Windows NT 3.5  */
+#ifndef _VA_LIST_DEFINED
+/* The macro _VA_LIST is used in SCO Unix 3.2.  */
+#ifndef _VA_LIST
+/* The macro _VA_LIST_T_H is used in the Bull dpx2  */
+#ifndef _VA_LIST_T_H
+/* The macro __va_list__ is used by BeOS.  */
+#ifndef __va_list__
+typedef __gnuc_va_list va_list;
+#endif /* not __va_list__ */
+#endif /* not _VA_LIST_T_H */
+#endif /* not _VA_LIST */
+#endif /* not _VA_LIST_DEFINED */
+#if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
+#define _VA_LIST_
+#endif
+#ifndef _VA_LIST
+#define _VA_LIST
+#endif
+#ifndef _VA_LIST_DEFINED
+#define _VA_LIST_DEFINED
+#endif
+#ifndef _VA_LIST_T_H
+#define _VA_LIST_T_H
+#endif
+#ifndef __va_list__
+#define __va_list__
+#endif
+
+#endif /* not _VA_LIST_, except on certain systems */
+
+#endif /* not __svr4__ */
+
+#endif /* _STDARG_H */
+
+#endif /* not _ANSI_STDARG_H_ */
+#endif /* not _STDARG_H */

lib/gcc/riscv64-unknown-elf/10.1.0/include/stdatomic.h

@@ -0,0 +1,243 @@
+/* Copyright (C) 2013-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/* ISO C11 Standard:  7.17  Atomics <stdatomic.h>.  */
+
+#ifndef _STDATOMIC_H
+#define _STDATOMIC_H
+
+typedef enum
+  {
+    memory_order_relaxed = __ATOMIC_RELAXED,
+    memory_order_consume = __ATOMIC_CONSUME,
+    memory_order_acquire = __ATOMIC_ACQUIRE,
+    memory_order_release = __ATOMIC_RELEASE,
+    memory_order_acq_rel = __ATOMIC_ACQ_REL,
+    memory_order_seq_cst = __ATOMIC_SEQ_CST
+  } memory_order;
+
+
+typedef _Atomic _Bool atomic_bool;
+typedef _Atomic char atomic_char;
+typedef _Atomic signed char atomic_schar;
+typedef _Atomic unsigned char atomic_uchar;
+typedef _Atomic short atomic_short;
+typedef _Atomic unsigned short atomic_ushort;
+typedef _Atomic int atomic_int;
+typedef _Atomic unsigned int atomic_uint;
+typedef _Atomic long atomic_long;
+typedef _Atomic unsigned long atomic_ulong;
+typedef _Atomic long long atomic_llong;
+typedef _Atomic unsigned long long atomic_ullong;
+typedef _Atomic __CHAR16_TYPE__ atomic_char16_t;
+typedef _Atomic __CHAR32_TYPE__ atomic_char32_t;
+typedef _Atomic __WCHAR_TYPE__ atomic_wchar_t;
+typedef _Atomic __INT_LEAST8_TYPE__ atomic_int_least8_t;
+typedef _Atomic __UINT_LEAST8_TYPE__ atomic_uint_least8_t;
+typedef _Atomic __INT_LEAST16_TYPE__ atomic_int_least16_t;
+typedef _Atomic __UINT_LEAST16_TYPE__ atomic_uint_least16_t;
+typedef _Atomic __INT_LEAST32_TYPE__ atomic_int_least32_t;
+typedef _Atomic __UINT_LEAST32_TYPE__ atomic_uint_least32_t;
+typedef _Atomic __INT_LEAST64_TYPE__ atomic_int_least64_t;
+typedef _Atomic __UINT_LEAST64_TYPE__ atomic_uint_least64_t;
+typedef _Atomic __INT_FAST8_TYPE__ atomic_int_fast8_t;
+typedef _Atomic __UINT_FAST8_TYPE__ atomic_uint_fast8_t;
+typedef _Atomic __INT_FAST16_TYPE__ atomic_int_fast16_t;
+typedef _Atomic __UINT_FAST16_TYPE__ atomic_uint_fast16_t;
+typedef _Atomic __INT_FAST32_TYPE__ atomic_int_fast32_t;
+typedef _Atomic __UINT_FAST32_TYPE__ atomic_uint_fast32_t;
+typedef _Atomic __INT_FAST64_TYPE__ atomic_int_fast64_t;
+typedef _Atomic __UINT_FAST64_TYPE__ atomic_uint_fast64_t;
+typedef _Atomic __INTPTR_TYPE__ atomic_intptr_t;
+typedef _Atomic __UINTPTR_TYPE__ atomic_uintptr_t;
+typedef _Atomic __SIZE_TYPE__ atomic_size_t;
+typedef _Atomic __PTRDIFF_TYPE__ atomic_ptrdiff_t;
+typedef _Atomic __INTMAX_TYPE__ atomic_intmax_t;
+typedef _Atomic __UINTMAX_TYPE__ atomic_uintmax_t;        
+
+
+#define ATOMIC_VAR_INIT(VALUE)	(VALUE)
+
+/* Initialize an atomic object pointed to by PTR with VAL.  */
+#define atomic_init(PTR, VAL)                           \
+  atomic_store_explicit (PTR, VAL, __ATOMIC_RELAXED)
+
+#define kill_dependency(Y)			\
+  __extension__					\
+  ({						\
+    __auto_type __kill_dependency_tmp = (Y);	\
+    __kill_dependency_tmp;			\
+  })
+
+extern void atomic_thread_fence (memory_order);
+#define atomic_thread_fence(MO)	__atomic_thread_fence (MO)
+extern void atomic_signal_fence (memory_order);
+#define atomic_signal_fence(MO)	__atomic_signal_fence  (MO)
+#define atomic_is_lock_free(OBJ) __atomic_is_lock_free (sizeof (*(OBJ)), (OBJ))
+
+#define ATOMIC_BOOL_LOCK_FREE		__GCC_ATOMIC_BOOL_LOCK_FREE
+#define ATOMIC_CHAR_LOCK_FREE		__GCC_ATOMIC_CHAR_LOCK_FREE
+#define ATOMIC_CHAR16_T_LOCK_FREE	__GCC_ATOMIC_CHAR16_T_LOCK_FREE
+#define ATOMIC_CHAR32_T_LOCK_FREE	__GCC_ATOMIC_CHAR32_T_LOCK_FREE
+#define ATOMIC_WCHAR_T_LOCK_FREE	__GCC_ATOMIC_WCHAR_T_LOCK_FREE
+#define ATOMIC_SHORT_LOCK_FREE		__GCC_ATOMIC_SHORT_LOCK_FREE
+#define ATOMIC_INT_LOCK_FREE		__GCC_ATOMIC_INT_LOCK_FREE
+#define ATOMIC_LONG_LOCK_FREE		__GCC_ATOMIC_LONG_LOCK_FREE
+#define ATOMIC_LLONG_LOCK_FREE		__GCC_ATOMIC_LLONG_LOCK_FREE
+#define ATOMIC_POINTER_LOCK_FREE	__GCC_ATOMIC_POINTER_LOCK_FREE
+
+
+/* Note that these macros require __typeof__ and __auto_type to remove
+   _Atomic qualifiers (and const qualifiers, if those are valid on
+   macro operands).
+   
+   Also note that the header file uses the generic form of __atomic
+   builtins, which requires the address to be taken of the value
+   parameter, and then we pass that value on.  This allows the macros
+   to work for any type, and the compiler is smart enough to convert
+   these to lock-free _N variants if possible, and throw away the
+   temps.  */
+
+#define atomic_store_explicit(PTR, VAL, MO)				\
+  __extension__								\
+  ({									\
+    __auto_type __atomic_store_ptr = (PTR);				\
+    __typeof__ (*__atomic_store_ptr) __atomic_store_tmp = (VAL);	\
+    __atomic_store (__atomic_store_ptr, &__atomic_store_tmp, (MO));	\
+  })
+
+#define atomic_store(PTR, VAL)				\
+  atomic_store_explicit (PTR, VAL, __ATOMIC_SEQ_CST)
+
+
+#define atomic_load_explicit(PTR, MO)					\
+  __extension__								\
+  ({									\
+    __auto_type __atomic_load_ptr = (PTR);				\
+    __typeof__ (*__atomic_load_ptr) __atomic_load_tmp;			\
+    __atomic_load (__atomic_load_ptr, &__atomic_load_tmp, (MO));	\
+    __atomic_load_tmp;							\
+  })
+
+#define atomic_load(PTR)  atomic_load_explicit (PTR, __ATOMIC_SEQ_CST)
+
+
+#define atomic_exchange_explicit(PTR, VAL, MO)				\
+  __extension__								\
+  ({									\
+    __auto_type __atomic_exchange_ptr = (PTR);				\
+    __typeof__ (*__atomic_exchange_ptr) __atomic_exchange_val = (VAL);	\
+    __typeof__ (*__atomic_exchange_ptr) __atomic_exchange_tmp;		\
+    __atomic_exchange (__atomic_exchange_ptr, &__atomic_exchange_val,	\
+		       &__atomic_exchange_tmp, (MO));			\
+    __atomic_exchange_tmp;						\
+  })
+
+#define atomic_exchange(PTR, VAL) 			\
+  atomic_exchange_explicit (PTR, VAL, __ATOMIC_SEQ_CST)
+
+
+#define atomic_compare_exchange_strong_explicit(PTR, VAL, DES, SUC, FAIL) \
+  __extension__								\
+  ({									\
+    __auto_type __atomic_compare_exchange_ptr = (PTR);			\
+    __typeof__ (*__atomic_compare_exchange_ptr) __atomic_compare_exchange_tmp \
+      = (DES);								\
+    __atomic_compare_exchange (__atomic_compare_exchange_ptr, (VAL),	\
+			       &__atomic_compare_exchange_tmp, 0,	\
+			       (SUC), (FAIL));				\
+  })
+
+#define atomic_compare_exchange_strong(PTR, VAL, DES) 			   \
+  atomic_compare_exchange_strong_explicit (PTR, VAL, DES, __ATOMIC_SEQ_CST, \
+					   __ATOMIC_SEQ_CST)
+
+#define atomic_compare_exchange_weak_explicit(PTR, VAL, DES, SUC, FAIL) \
+  __extension__								\
+  ({									\
+    __auto_type __atomic_compare_exchange_ptr = (PTR);			\
+    __typeof__ (*__atomic_compare_exchange_ptr) __atomic_compare_exchange_tmp \
+      = (DES);								\
+    __atomic_compare_exchange (__atomic_compare_exchange_ptr, (VAL),	\
+			       &__atomic_compare_exchange_tmp, 1,	\
+			       (SUC), (FAIL));				\
+  })
+
+#define atomic_compare_exchange_weak(PTR, VAL, DES)			\
+  atomic_compare_exchange_weak_explicit (PTR, VAL, DES, __ATOMIC_SEQ_CST, \
+					 __ATOMIC_SEQ_CST)
+
+
+
+#define atomic_fetch_add(PTR, VAL) __atomic_fetch_add ((PTR), (VAL), 	\
+						       __ATOMIC_SEQ_CST)
+#define atomic_fetch_add_explicit(PTR, VAL, MO) 			\
+			  __atomic_fetch_add ((PTR), (VAL), (MO))
+
+#define atomic_fetch_sub(PTR, VAL) __atomic_fetch_sub ((PTR), (VAL), 	\
+						       __ATOMIC_SEQ_CST)
+#define atomic_fetch_sub_explicit(PTR, VAL, MO) 			\
+			  __atomic_fetch_sub ((PTR), (VAL), (MO))
+
+#define atomic_fetch_or(PTR, VAL) __atomic_fetch_or ((PTR), (VAL), 	\
+						       __ATOMIC_SEQ_CST)
+#define atomic_fetch_or_explicit(PTR, VAL, MO) 			\
+			  __atomic_fetch_or ((PTR), (VAL), (MO))
+
+#define atomic_fetch_xor(PTR, VAL) __atomic_fetch_xor ((PTR), (VAL), 	\
+						       __ATOMIC_SEQ_CST)
+#define atomic_fetch_xor_explicit(PTR, VAL, MO) 			\
+			  __atomic_fetch_xor ((PTR), (VAL), (MO))
+
+#define atomic_fetch_and(PTR, VAL) __atomic_fetch_and ((PTR), (VAL), 	\
+						       __ATOMIC_SEQ_CST)
+#define atomic_fetch_and_explicit(PTR, VAL, MO) 			\
+			  __atomic_fetch_and ((PTR), (VAL), (MO))
+
+
+typedef _Atomic struct
+{
+#if __GCC_ATOMIC_TEST_AND_SET_TRUEVAL == 1
+  _Bool __val;
+#else
+  unsigned char __val;
+#endif
+} atomic_flag;
+
+#define ATOMIC_FLAG_INIT	{ 0 }
+
+
+extern _Bool atomic_flag_test_and_set (volatile atomic_flag *);
+#define atomic_flag_test_and_set(PTR) 					\
+			__atomic_test_and_set ((PTR), __ATOMIC_SEQ_CST)
+extern _Bool atomic_flag_test_and_set_explicit (volatile atomic_flag *,
+						memory_order);
+#define atomic_flag_test_and_set_explicit(PTR, MO)			\
+			__atomic_test_and_set ((PTR), (MO))
+
+extern void atomic_flag_clear (volatile atomic_flag *);
+#define atomic_flag_clear(PTR)	__atomic_clear ((PTR), __ATOMIC_SEQ_CST)
+extern void atomic_flag_clear_explicit (volatile atomic_flag *, memory_order);
+#define atomic_flag_clear_explicit(PTR, MO)   __atomic_clear ((PTR), (MO))
+
+#endif  /* _STDATOMIC_H */

lib/gcc/riscv64-unknown-elf/10.1.0/include/stdbool.h

@@ -0,0 +1,54 @@
+/* Copyright (C) 1998-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO C Standard:  7.16  Boolean type and values  <stdbool.h>
+ */
+
+#ifndef _STDBOOL_H
+#define _STDBOOL_H
+
+#ifndef __cplusplus
+
+#define bool	_Bool
+#define true	1
+#define false	0
+
+#else /* __cplusplus */
+
+/* Supporting _Bool in C++ is a GCC extension.  */
+#define _Bool	bool
+
+#if __cplusplus < 201103L
+/* Defining these macros in C++98 is a GCC extension.  */
+#define bool	bool
+#define false	false
+#define true	true
+#endif
+
+#endif /* __cplusplus */
+
+/* Signal that all the definitions are present.  */
+#define __bool_true_false_are_defined	1
+
+#endif	/* stdbool.h */

lib/gcc/riscv64-unknown-elf/10.1.0/include/stddef.h

@@ -0,0 +1,440 @@
+/* Copyright (C) 1989-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO C Standard:  7.17  Common definitions  <stddef.h>
+ */
+#if (!defined(_STDDEF_H) && !defined(_STDDEF_H_) && !defined(_ANSI_STDDEF_H) \
+     && !defined(__STDDEF_H__)) \
+    || defined(__need_wchar_t) || defined(__need_size_t) \
+    || defined(__need_ptrdiff_t) || defined(__need_NULL) \
+    || defined(__need_wint_t)
+
+/* Any one of these symbols __need_* means that GNU libc
+   wants us just to define one data type.  So don't define
+   the symbols that indicate this file's entire job has been done.  */
+#if (!defined(__need_wchar_t) && !defined(__need_size_t)	\
+     && !defined(__need_ptrdiff_t) && !defined(__need_NULL)	\
+     && !defined(__need_wint_t))
+#define _STDDEF_H
+#define _STDDEF_H_
+/* snaroff@next.com says the NeXT needs this.  */
+#define _ANSI_STDDEF_H
+#endif
+
+#ifndef __sys_stdtypes_h
+/* This avoids lossage on SunOS but only if stdtypes.h comes first.
+   There's no way to win with the other order!  Sun lossage.  */
+
+#if defined(__NetBSD__)
+#include <machine/ansi.h>
+#endif
+
+#if defined (__FreeBSD__)
+#include <sys/_types.h>
+#endif
+
+#if defined(__NetBSD__)
+#if !defined(_SIZE_T_) && !defined(_BSD_SIZE_T_)
+#define _SIZE_T
+#endif
+#if !defined(_PTRDIFF_T_) && !defined(_BSD_PTRDIFF_T_)
+#define _PTRDIFF_T
+#endif
+/* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
+   instead of _WCHAR_T_. */
+#if !defined(_WCHAR_T_) && !defined(_BSD_WCHAR_T_)
+#ifndef _BSD_WCHAR_T_
+#define _WCHAR_T
+#endif
+#endif
+/* Undef _FOO_T_ if we are supposed to define foo_t.  */
+#if defined (__need_ptrdiff_t) || defined (_STDDEF_H_)
+#undef _PTRDIFF_T_
+#undef _BSD_PTRDIFF_T_
+#endif
+#if defined (__need_size_t) || defined (_STDDEF_H_)
+#undef _SIZE_T_
+#undef _BSD_SIZE_T_
+#endif
+#if defined (__need_wchar_t) || defined (_STDDEF_H_)
+#undef _WCHAR_T_
+#undef _BSD_WCHAR_T_
+#endif
+#endif /* defined(__NetBSD__) */
+
+/* Sequent's header files use _PTRDIFF_T_ in some conflicting way.
+   Just ignore it.  */
+#if defined (__sequent__) && defined (_PTRDIFF_T_)
+#undef _PTRDIFF_T_
+#endif
+
+/* On VxWorks, <type/vxTypesBase.h> may have defined macros like
+   _TYPE_size_t which will typedef size_t.  fixincludes patched the
+   vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is
+   not defined, and so that defining this macro defines _GCC_SIZE_T.
+   If we find that the macros are still defined at this point, we must
+   invoke them so that the type is defined as expected.  */
+#if defined (_TYPE_ptrdiff_t) && (defined (__need_ptrdiff_t) || defined (_STDDEF_H_))
+_TYPE_ptrdiff_t;
+#undef _TYPE_ptrdiff_t
+#endif
+#if defined (_TYPE_size_t) && (defined (__need_size_t) || defined (_STDDEF_H_))
+_TYPE_size_t;
+#undef _TYPE_size_t
+#endif
+#if defined (_TYPE_wchar_t) && (defined (__need_wchar_t) || defined (_STDDEF_H_))
+_TYPE_wchar_t;
+#undef _TYPE_wchar_t
+#endif
+
+/* In case nobody has defined these types, but we aren't running under
+   GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and
+   __WCHAR_TYPE__ have reasonable values.  This can happen if the
+   parts of GCC is compiled by an older compiler, that actually
+   include gstddef.h, such as collect2.  */
+
+/* Signed type of difference of two pointers.  */
+
+/* Define this type if we are doing the whole job,
+   or if we want this type in particular.  */
+#if defined (_STDDEF_H) || defined (__need_ptrdiff_t)
+#ifndef _PTRDIFF_T	/* in case <sys/types.h> has defined it. */
+#ifndef _T_PTRDIFF_
+#ifndef _T_PTRDIFF
+#ifndef __PTRDIFF_T
+#ifndef _PTRDIFF_T_
+#ifndef _BSD_PTRDIFF_T_
+#ifndef ___int_ptrdiff_t_h
+#ifndef _GCC_PTRDIFF_T
+#ifndef _PTRDIFF_T_DECLARED /* DragonFly */
+#define _PTRDIFF_T
+#define _T_PTRDIFF_
+#define _T_PTRDIFF
+#define __PTRDIFF_T
+#define _PTRDIFF_T_
+#define _BSD_PTRDIFF_T_
+#define ___int_ptrdiff_t_h
+#define _GCC_PTRDIFF_T
+#define _PTRDIFF_T_DECLARED
+#ifndef __PTRDIFF_TYPE__
+#define __PTRDIFF_TYPE__ long int
+#endif
+typedef __PTRDIFF_TYPE__ ptrdiff_t;
+#endif /* _PTRDIFF_T_DECLARED */
+#endif /* _GCC_PTRDIFF_T */
+#endif /* ___int_ptrdiff_t_h */
+#endif /* _BSD_PTRDIFF_T_ */
+#endif /* _PTRDIFF_T_ */
+#endif /* __PTRDIFF_T */
+#endif /* _T_PTRDIFF */
+#endif /* _T_PTRDIFF_ */
+#endif /* _PTRDIFF_T */
+
+/* If this symbol has done its job, get rid of it.  */
+#undef	__need_ptrdiff_t
+
+#endif /* _STDDEF_H or __need_ptrdiff_t.  */
+
+/* Unsigned type of `sizeof' something.  */
+
+/* Define this type if we are doing the whole job,
+   or if we want this type in particular.  */
+#if defined (_STDDEF_H) || defined (__need_size_t)
+#ifndef __size_t__	/* BeOS */
+#ifndef __SIZE_T__	/* Cray Unicos/Mk */
+#ifndef _SIZE_T	/* in case <sys/types.h> has defined it. */
+#ifndef _SYS_SIZE_T_H
+#ifndef _T_SIZE_
+#ifndef _T_SIZE
+#ifndef __SIZE_T
+#ifndef _SIZE_T_
+#ifndef _BSD_SIZE_T_
+#ifndef _SIZE_T_DEFINED_
+#ifndef _SIZE_T_DEFINED
+#ifndef _BSD_SIZE_T_DEFINED_	/* Darwin */
+#ifndef _SIZE_T_DECLARED	/* FreeBSD 5 */
+#ifndef ___int_size_t_h
+#ifndef _GCC_SIZE_T
+#ifndef _SIZET_
+#ifndef __size_t
+#define __size_t__	/* BeOS */
+#define __SIZE_T__	/* Cray Unicos/Mk */
+#define _SIZE_T
+#define _SYS_SIZE_T_H
+#define _T_SIZE_
+#define _T_SIZE
+#define __SIZE_T
+#define _SIZE_T_
+#define _BSD_SIZE_T_
+#define _SIZE_T_DEFINED_
+#define _SIZE_T_DEFINED
+#define _BSD_SIZE_T_DEFINED_	/* Darwin */
+#define _SIZE_T_DECLARED	/* FreeBSD 5 */
+#define ___int_size_t_h
+#define _GCC_SIZE_T
+#define _SIZET_
+#if defined (__FreeBSD__) \
+  || defined(__DragonFly__) \
+  || defined(__FreeBSD_kernel__) \
+  || defined(__VMS__)
+/* __size_t is a typedef, must not trash it.  */
+#else
+#define __size_t
+#endif
+#ifndef __SIZE_TYPE__
+#define __SIZE_TYPE__ long unsigned int
+#endif
+#if !(defined (__GNUG__) && defined (size_t))
+typedef __SIZE_TYPE__ size_t;
+#ifdef __BEOS__
+typedef long ssize_t;
+#endif /* __BEOS__ */
+#endif /* !(defined (__GNUG__) && defined (size_t)) */
+#endif /* __size_t */
+#endif /* _SIZET_ */
+#endif /* _GCC_SIZE_T */
+#endif /* ___int_size_t_h */
+#endif /* _SIZE_T_DECLARED */
+#endif /* _BSD_SIZE_T_DEFINED_ */
+#endif /* _SIZE_T_DEFINED */
+#endif /* _SIZE_T_DEFINED_ */
+#endif /* _BSD_SIZE_T_ */
+#endif /* _SIZE_T_ */
+#endif /* __SIZE_T */
+#endif /* _T_SIZE */
+#endif /* _T_SIZE_ */
+#endif /* _SYS_SIZE_T_H */
+#endif /* _SIZE_T */
+#endif /* __SIZE_T__ */
+#endif /* __size_t__ */
+#undef	__need_size_t
+#endif /* _STDDEF_H or __need_size_t.  */
+
+
+/* Wide character type.
+   Locale-writers should change this as necessary to
+   be big enough to hold unique values not between 0 and 127,
+   and not (wchar_t) -1, for each defined multibyte character.  */
+
+/* Define this type if we are doing the whole job,
+   or if we want this type in particular.  */
+#if defined (_STDDEF_H) || defined (__need_wchar_t)
+#ifndef __wchar_t__	/* BeOS */
+#ifndef __WCHAR_T__	/* Cray Unicos/Mk */
+#ifndef _WCHAR_T
+#ifndef _T_WCHAR_
+#ifndef _T_WCHAR
+#ifndef __WCHAR_T
+#ifndef _WCHAR_T_
+#ifndef _BSD_WCHAR_T_
+#ifndef _BSD_WCHAR_T_DEFINED_    /* Darwin */
+#ifndef _BSD_RUNE_T_DEFINED_	/* Darwin */
+#ifndef _WCHAR_T_DECLARED /* FreeBSD 5 */
+#ifndef _WCHAR_T_DEFINED_
+#ifndef _WCHAR_T_DEFINED
+#ifndef _WCHAR_T_H
+#ifndef ___int_wchar_t_h
+#ifndef __INT_WCHAR_T_H
+#ifndef _GCC_WCHAR_T
+#define __wchar_t__	/* BeOS */
+#define __WCHAR_T__	/* Cray Unicos/Mk */
+#define _WCHAR_T
+#define _T_WCHAR_
+#define _T_WCHAR
+#define __WCHAR_T
+#define _WCHAR_T_
+#define _BSD_WCHAR_T_
+#define _WCHAR_T_DEFINED_
+#define _WCHAR_T_DEFINED
+#define _WCHAR_T_H
+#define ___int_wchar_t_h
+#define __INT_WCHAR_T_H
+#define _GCC_WCHAR_T
+#define _WCHAR_T_DECLARED
+
+/* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
+   instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other
+   symbols in the _FOO_T_ family, stays defined even after its
+   corresponding type is defined).  If we define wchar_t, then we
+   must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if
+   we undef _WCHAR_T_, then we must also define rune_t, since 
+   headers like runetype.h assume that if machine/ansi.h is included,
+   and _BSD_WCHAR_T_ is not defined, then rune_t is available.
+   machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of
+   the same type." */
+#ifdef _BSD_WCHAR_T_
+#undef _BSD_WCHAR_T_
+#ifdef _BSD_RUNE_T_
+#if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE)
+typedef _BSD_RUNE_T_ rune_t;
+#define _BSD_WCHAR_T_DEFINED_
+#define _BSD_RUNE_T_DEFINED_	/* Darwin */
+#if defined (__FreeBSD__) && (__FreeBSD__ < 5)
+/* Why is this file so hard to maintain properly?  In contrast to
+   the comment above regarding BSD/386 1.1, on FreeBSD for as long
+   as the symbol has existed, _BSD_RUNE_T_ must not stay defined or
+   redundant typedefs will occur when stdlib.h is included after this file. */
+#undef _BSD_RUNE_T_
+#endif
+#endif
+#endif
+#endif
+/* FreeBSD 5 can't be handled well using "traditional" logic above
+   since it no longer defines _BSD_RUNE_T_ yet still desires to export
+   rune_t in some cases... */
+#if defined (__FreeBSD__) && (__FreeBSD__ >= 5)
+#if !defined (_ANSI_SOURCE) && !defined (_POSIX_SOURCE)
+#if __BSD_VISIBLE
+#ifndef _RUNE_T_DECLARED
+typedef __rune_t        rune_t;
+#define _RUNE_T_DECLARED
+#endif
+#endif
+#endif
+#endif
+
+#ifndef __WCHAR_TYPE__
+#define __WCHAR_TYPE__ int
+#endif
+#ifndef __cplusplus
+typedef __WCHAR_TYPE__ wchar_t;
+#endif
+#endif
+#endif
+#endif
+#endif
+#endif
+#endif
+#endif /* _WCHAR_T_DECLARED */
+#endif /* _BSD_RUNE_T_DEFINED_ */
+#endif
+#endif
+#endif
+#endif
+#endif
+#endif
+#endif
+#endif /* __WCHAR_T__ */
+#endif /* __wchar_t__ */
+#undef	__need_wchar_t
+#endif /* _STDDEF_H or __need_wchar_t.  */
+
+#if defined (__need_wint_t)
+#ifndef _WINT_T
+#define _WINT_T
+
+#ifndef __WINT_TYPE__
+#define __WINT_TYPE__ unsigned int
+#endif
+typedef __WINT_TYPE__ wint_t;
+#endif
+#undef __need_wint_t
+#endif
+
+#if defined(__NetBSD__)
+/*  The references to _GCC_PTRDIFF_T_, _GCC_SIZE_T_, and _GCC_WCHAR_T_
+    are probably typos and should be removed before 2.8 is released.  */
+#ifdef _GCC_PTRDIFF_T_
+#undef _PTRDIFF_T_
+#undef _BSD_PTRDIFF_T_
+#endif
+#ifdef _GCC_SIZE_T_
+#undef _SIZE_T_
+#undef _BSD_SIZE_T_
+#endif
+#ifdef _GCC_WCHAR_T_
+#undef _WCHAR_T_
+#undef _BSD_WCHAR_T_
+#endif
+/*  The following ones are the real ones.  */
+#ifdef _GCC_PTRDIFF_T
+#undef _PTRDIFF_T_
+#undef _BSD_PTRDIFF_T_
+#endif
+#ifdef _GCC_SIZE_T
+#undef _SIZE_T_
+#undef _BSD_SIZE_T_
+#endif
+#ifdef _GCC_WCHAR_T
+#undef _WCHAR_T_
+#undef _BSD_WCHAR_T_
+#endif
+#endif /* __NetBSD__ */
+
+#endif /* __sys_stdtypes_h */
+
+/* A null pointer constant.  */
+
+#if defined (_STDDEF_H) || defined (__need_NULL)
+#undef NULL		/* in case <stdio.h> has defined it. */
+#ifdef __GNUG__
+#define NULL __null
+#else   /* G++ */
+#ifndef __cplusplus
+#define NULL ((void *)0)
+#else   /* C++ */
+#define NULL 0
+#endif  /* C++ */
+#endif  /* G++ */
+#endif	/* NULL not defined and <stddef.h> or need NULL.  */
+#undef	__need_NULL
+
+#ifdef _STDDEF_H
+
+/* Offset of member MEMBER in a struct of type TYPE. */
+#define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
+
+#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \
+  || (defined(__cplusplus) && __cplusplus >= 201103L)
+#ifndef _GCC_MAX_ALIGN_T
+#define _GCC_MAX_ALIGN_T
+/* Type whose alignment is supported in every context and is at least
+   as great as that of any standard type not using alignment
+   specifiers.  */
+typedef struct {
+  long long __max_align_ll __attribute__((__aligned__(__alignof__(long long))));
+  long double __max_align_ld __attribute__((__aligned__(__alignof__(long double))));
+  /* _Float128 is defined as a basic type, so max_align_t must be
+     sufficiently aligned for it.  This code must work in C++, so we
+     use __float128 here; that is only available on some
+     architectures, but only on i386 is extra alignment needed for
+     __float128.  */
+#ifdef __i386__
+  __float128 __max_align_f128 __attribute__((__aligned__(__alignof(__float128))));
+#endif
+} max_align_t;
+#endif
+#endif /* C11 or C++11.  */
+
+#if defined(__cplusplus) && __cplusplus >= 201103L
+#ifndef _GXX_NULLPTR_T
+#define _GXX_NULLPTR_T
+  typedef decltype(nullptr) nullptr_t;
+#endif
+#endif /* C++11.  */
+
+#endif /* _STDDEF_H was defined this time */
+
+#endif /* !_STDDEF_H && !_STDDEF_H_ && !_ANSI_STDDEF_H && !__STDDEF_H__
+	  || __need_XXX was not defined before */

lib/gcc/riscv64-unknown-elf/10.1.0/include/stdfix.h

@@ -0,0 +1,204 @@
+/* Copyright (C) 2007-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/* ISO/IEC JTC1 SC22 WG14 N1169
+ * Date: 2006-04-04
+ * ISO/IEC TR 18037
+ * Programming languages - C - Extensions to support embedded processors
+ */
+
+#ifndef _STDFIX_H
+#define _STDFIX_H
+
+/* 7.18a.1 Introduction.  */
+
+#undef fract
+#undef accum
+#undef sat
+#define fract		_Fract
+#define accum		_Accum
+#define sat		_Sat
+
+/* 7.18a.3 Precision macros.  */
+
+#undef SFRACT_FBIT
+#undef SFRACT_MIN
+#undef SFRACT_MAX
+#undef SFRACT_EPSILON
+#define SFRACT_FBIT	__SFRACT_FBIT__
+#define SFRACT_MIN	__SFRACT_MIN__
+#define SFRACT_MAX	__SFRACT_MAX__
+#define SFRACT_EPSILON	__SFRACT_EPSILON__
+
+#undef USFRACT_FBIT
+#undef USFRACT_MIN
+#undef USFRACT_MAX
+#undef USFRACT_EPSILON
+#define USFRACT_FBIT	__USFRACT_FBIT__
+#define USFRACT_MIN	__USFRACT_MIN__		/* GCC extension.  */
+#define USFRACT_MAX	__USFRACT_MAX__
+#define USFRACT_EPSILON	__USFRACT_EPSILON__
+
+#undef FRACT_FBIT
+#undef FRACT_MIN
+#undef FRACT_MAX
+#undef FRACT_EPSILON
+#define FRACT_FBIT	__FRACT_FBIT__
+#define FRACT_MIN	__FRACT_MIN__
+#define FRACT_MAX	__FRACT_MAX__
+#define FRACT_EPSILON	__FRACT_EPSILON__
+
+#undef UFRACT_FBIT
+#undef UFRACT_MIN
+#undef UFRACT_MAX
+#undef UFRACT_EPSILON
+#define UFRACT_FBIT	__UFRACT_FBIT__
+#define UFRACT_MIN	__UFRACT_MIN__		/* GCC extension.  */
+#define UFRACT_MAX	__UFRACT_MAX__
+#define UFRACT_EPSILON	__UFRACT_EPSILON__
+
+#undef LFRACT_FBIT
+#undef LFRACT_MIN
+#undef LFRACT_MAX
+#undef LFRACT_EPSILON
+#define LFRACT_FBIT	__LFRACT_FBIT__
+#define LFRACT_MIN	__LFRACT_MIN__
+#define LFRACT_MAX	__LFRACT_MAX__
+#define LFRACT_EPSILON	__LFRACT_EPSILON__
+
+#undef ULFRACT_FBIT
+#undef ULFRACT_MIN
+#undef ULFRACT_MAX
+#undef ULFRACT_EPSILON
+#define ULFRACT_FBIT	__ULFRACT_FBIT__
+#define ULFRACT_MIN	__ULFRACT_MIN__		/* GCC extension.  */
+#define ULFRACT_MAX	__ULFRACT_MAX__
+#define ULFRACT_EPSILON	__ULFRACT_EPSILON__
+
+#undef LLFRACT_FBIT
+#undef LLFRACT_MIN
+#undef LLFRACT_MAX
+#undef LLFRACT_EPSILON
+#define LLFRACT_FBIT	__LLFRACT_FBIT__	/* GCC extension.  */
+#define LLFRACT_MIN	__LLFRACT_MIN__		/* GCC extension.  */
+#define LLFRACT_MAX	__LLFRACT_MAX__		/* GCC extension.  */
+#define LLFRACT_EPSILON	__LLFRACT_EPSILON__	/* GCC extension.  */
+
+#undef ULLFRACT_FBIT
+#undef ULLFRACT_MIN
+#undef ULLFRACT_MAX
+#undef ULLFRACT_EPSILON
+#define ULLFRACT_FBIT	__ULLFRACT_FBIT__	/* GCC extension.  */
+#define ULLFRACT_MIN	__ULLFRACT_MIN__	/* GCC extension.  */
+#define ULLFRACT_MAX	__ULLFRACT_MAX__	/* GCC extension.  */
+#define ULLFRACT_EPSILON	__ULLFRACT_EPSILON__	/* GCC extension.  */
+
+#undef SACCUM_FBIT
+#undef SACCUM_IBIT
+#undef SACCUM_MIN
+#undef SACCUM_MAX
+#undef SACCUM_EPSILON
+#define SACCUM_FBIT	__SACCUM_FBIT__
+#define SACCUM_IBIT	__SACCUM_IBIT__
+#define SACCUM_MIN	__SACCUM_MIN__
+#define SACCUM_MAX	__SACCUM_MAX__
+#define SACCUM_EPSILON	__SACCUM_EPSILON__
+
+#undef USACCUM_FBIT
+#undef USACCUM_IBIT
+#undef USACCUM_MIN
+#undef USACCUM_MAX
+#undef USACCUM_EPSILON
+#define USACCUM_FBIT	__USACCUM_FBIT__
+#define USACCUM_IBIT	__USACCUM_IBIT__
+#define USACCUM_MIN	__USACCUM_MIN__		/* GCC extension.  */
+#define USACCUM_MAX	__USACCUM_MAX__
+#define USACCUM_EPSILON	__USACCUM_EPSILON__
+
+#undef ACCUM_FBIT
+#undef ACCUM_IBIT
+#undef ACCUM_MIN
+#undef ACCUM_MAX
+#undef ACCUM_EPSILON
+#define ACCUM_FBIT	__ACCUM_FBIT__
+#define ACCUM_IBIT	__ACCUM_IBIT__
+#define ACCUM_MIN	__ACCUM_MIN__
+#define ACCUM_MAX	__ACCUM_MAX__
+#define ACCUM_EPSILON	__ACCUM_EPSILON__
+
+#undef UACCUM_FBIT
+#undef UACCUM_IBIT
+#undef UACCUM_MIN
+#undef UACCUM_MAX
+#undef UACCUM_EPSILON
+#define UACCUM_FBIT	__UACCUM_FBIT__
+#define UACCUM_IBIT	__UACCUM_IBIT__
+#define UACCUM_MIN	__UACCUM_MIN__		/* GCC extension.  */
+#define UACCUM_MAX	__UACCUM_MAX__
+#define UACCUM_EPSILON	__UACCUM_EPSILON__
+
+#undef LACCUM_FBIT
+#undef LACCUM_IBIT
+#undef LACCUM_MIN
+#undef LACCUM_MAX
+#undef LACCUM_EPSILON
+#define LACCUM_FBIT	__LACCUM_FBIT__
+#define LACCUM_IBIT	__LACCUM_IBIT__
+#define LACCUM_MIN	__LACCUM_MIN__
+#define LACCUM_MAX	__LACCUM_MAX__
+#define LACCUM_EPSILON	__LACCUM_EPSILON__
+
+#undef ULACCUM_FBIT
+#undef ULACCUM_IBIT
+#undef ULACCUM_MIN
+#undef ULACCUM_MAX
+#undef ULACCUM_EPSILON
+#define ULACCUM_FBIT	__ULACCUM_FBIT__
+#define ULACCUM_IBIT	__ULACCUM_IBIT__
+#define ULACCUM_MIN	__ULACCUM_MIN__		/* GCC extension.  */
+#define ULACCUM_MAX	__ULACCUM_MAX__
+#define ULACCUM_EPSILON	__ULACCUM_EPSILON__
+
+#undef LLACCUM_FBIT
+#undef LLACCUM_IBIT
+#undef LLACCUM_MIN
+#undef LLACCUM_MAX
+#undef LLACCUM_EPSILON
+#define LLACCUM_FBIT	__LLACCUM_FBIT__	/* GCC extension.  */
+#define LLACCUM_IBIT	__LLACCUM_IBIT__	/* GCC extension.  */
+#define LLACCUM_MIN	__LLACCUM_MIN__		/* GCC extension.  */
+#define LLACCUM_MAX	__LLACCUM_MAX__		/* GCC extension.  */
+#define LLACCUM_EPSILON	__LLACCUM_EPSILON__	/* GCC extension.  */
+
+#undef ULLACCUM_FBIT
+#undef ULLACCUM_IBIT
+#undef ULLACCUM_MIN
+#undef ULLACCUM_MAX
+#undef ULLACCUM_EPSILON
+#define ULLACCUM_FBIT	__ULLACCUM_FBIT__	/* GCC extension.  */
+#define ULLACCUM_IBIT	__ULLACCUM_IBIT__	/* GCC extension.  */
+#define ULLACCUM_MIN	__ULLACCUM_MIN__	/* GCC extension.  */
+#define ULLACCUM_MAX	__ULLACCUM_MAX__	/* GCC extension.  */
+#define ULLACCUM_EPSILON	__ULLACCUM_EPSILON__	/* GCC extension.  */
+
+#endif /* _STDFIX_H */

lib/gcc/riscv64-unknown-elf/10.1.0/include/stdint-gcc.h

@@ -0,0 +1,365 @@
+/* Copyright (C) 2008-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO C Standard:  7.18  Integer types  <stdint.h>
+ */
+
+#ifndef _GCC_STDINT_H
+#define _GCC_STDINT_H
+
+/* 7.8.1.1 Exact-width integer types */
+
+#ifdef __INT8_TYPE__
+typedef __INT8_TYPE__ int8_t;
+#endif
+#ifdef __INT16_TYPE__
+typedef __INT16_TYPE__ int16_t;
+#endif
+#ifdef __INT32_TYPE__
+typedef __INT32_TYPE__ int32_t;
+#endif
+#ifdef __INT64_TYPE__
+typedef __INT64_TYPE__ int64_t;
+#endif
+#ifdef __UINT8_TYPE__
+typedef __UINT8_TYPE__ uint8_t;
+#endif
+#ifdef __UINT16_TYPE__
+typedef __UINT16_TYPE__ uint16_t;
+#endif
+#ifdef __UINT32_TYPE__
+typedef __UINT32_TYPE__ uint32_t;
+#endif
+#ifdef __UINT64_TYPE__
+typedef __UINT64_TYPE__ uint64_t;
+#endif
+
+/* 7.8.1.2 Minimum-width integer types */
+
+typedef __INT_LEAST8_TYPE__ int_least8_t;
+typedef __INT_LEAST16_TYPE__ int_least16_t;
+typedef __INT_LEAST32_TYPE__ int_least32_t;
+typedef __INT_LEAST64_TYPE__ int_least64_t;
+typedef __UINT_LEAST8_TYPE__ uint_least8_t;
+typedef __UINT_LEAST16_TYPE__ uint_least16_t;
+typedef __UINT_LEAST32_TYPE__ uint_least32_t;
+typedef __UINT_LEAST64_TYPE__ uint_least64_t;
+
+/* 7.8.1.3 Fastest minimum-width integer types */
+
+typedef __INT_FAST8_TYPE__ int_fast8_t;
+typedef __INT_FAST16_TYPE__ int_fast16_t;
+typedef __INT_FAST32_TYPE__ int_fast32_t;
+typedef __INT_FAST64_TYPE__ int_fast64_t;
+typedef __UINT_FAST8_TYPE__ uint_fast8_t;
+typedef __UINT_FAST16_TYPE__ uint_fast16_t;
+typedef __UINT_FAST32_TYPE__ uint_fast32_t;
+typedef __UINT_FAST64_TYPE__ uint_fast64_t;
+
+/* 7.8.1.4 Integer types capable of holding object pointers */
+
+#ifdef __INTPTR_TYPE__
+typedef __INTPTR_TYPE__ intptr_t;
+#endif
+#ifdef __UINTPTR_TYPE__
+typedef __UINTPTR_TYPE__ uintptr_t;
+#endif
+
+/* 7.8.1.5 Greatest-width integer types */
+
+typedef __INTMAX_TYPE__ intmax_t;
+typedef __UINTMAX_TYPE__ uintmax_t;
+
+#if (!defined __cplusplus || __cplusplus >= 201103L \
+     || defined __STDC_LIMIT_MACROS)
+
+/* 7.18.2 Limits of specified-width integer types */
+
+#ifdef __INT8_MAX__
+# undef INT8_MAX
+# define INT8_MAX __INT8_MAX__
+# undef INT8_MIN
+# define INT8_MIN (-INT8_MAX - 1)
+#endif
+#ifdef __UINT8_MAX__
+# undef UINT8_MAX
+# define UINT8_MAX __UINT8_MAX__
+#endif
+#ifdef __INT16_MAX__
+# undef INT16_MAX
+# define INT16_MAX __INT16_MAX__
+# undef INT16_MIN
+# define INT16_MIN (-INT16_MAX - 1)
+#endif
+#ifdef __UINT16_MAX__
+# undef UINT16_MAX
+# define UINT16_MAX __UINT16_MAX__
+#endif
+#ifdef __INT32_MAX__
+# undef INT32_MAX
+# define INT32_MAX __INT32_MAX__
+# undef INT32_MIN
+# define INT32_MIN (-INT32_MAX - 1)
+#endif
+#ifdef __UINT32_MAX__
+# undef UINT32_MAX
+# define UINT32_MAX __UINT32_MAX__
+#endif
+#ifdef __INT64_MAX__
+# undef INT64_MAX
+# define INT64_MAX __INT64_MAX__
+# undef INT64_MIN
+# define INT64_MIN (-INT64_MAX - 1)
+#endif
+#ifdef __UINT64_MAX__
+# undef UINT64_MAX
+# define UINT64_MAX __UINT64_MAX__
+#endif
+
+#undef INT_LEAST8_MAX
+#define INT_LEAST8_MAX __INT_LEAST8_MAX__
+#undef INT_LEAST8_MIN
+#define INT_LEAST8_MIN (-INT_LEAST8_MAX - 1)
+#undef UINT_LEAST8_MAX
+#define UINT_LEAST8_MAX __UINT_LEAST8_MAX__
+#undef INT_LEAST16_MAX
+#define INT_LEAST16_MAX __INT_LEAST16_MAX__
+#undef INT_LEAST16_MIN
+#define INT_LEAST16_MIN (-INT_LEAST16_MAX - 1)
+#undef UINT_LEAST16_MAX
+#define UINT_LEAST16_MAX __UINT_LEAST16_MAX__
+#undef INT_LEAST32_MAX
+#define INT_LEAST32_MAX __INT_LEAST32_MAX__
+#undef INT_LEAST32_MIN
+#define INT_LEAST32_MIN (-INT_LEAST32_MAX - 1)
+#undef UINT_LEAST32_MAX
+#define UINT_LEAST32_MAX __UINT_LEAST32_MAX__
+#undef INT_LEAST64_MAX
+#define INT_LEAST64_MAX __INT_LEAST64_MAX__
+#undef INT_LEAST64_MIN
+#define INT_LEAST64_MIN (-INT_LEAST64_MAX - 1)
+#undef UINT_LEAST64_MAX
+#define UINT_LEAST64_MAX __UINT_LEAST64_MAX__
+
+#undef INT_FAST8_MAX
+#define INT_FAST8_MAX __INT_FAST8_MAX__
+#undef INT_FAST8_MIN
+#define INT_FAST8_MIN (-INT_FAST8_MAX - 1)
+#undef UINT_FAST8_MAX
+#define UINT_FAST8_MAX __UINT_FAST8_MAX__
+#undef INT_FAST16_MAX
+#define INT_FAST16_MAX __INT_FAST16_MAX__
+#undef INT_FAST16_MIN
+#define INT_FAST16_MIN (-INT_FAST16_MAX - 1)
+#undef UINT_FAST16_MAX
+#define UINT_FAST16_MAX __UINT_FAST16_MAX__
+#undef INT_FAST32_MAX
+#define INT_FAST32_MAX __INT_FAST32_MAX__
+#undef INT_FAST32_MIN
+#define INT_FAST32_MIN (-INT_FAST32_MAX - 1)
+#undef UINT_FAST32_MAX
+#define UINT_FAST32_MAX __UINT_FAST32_MAX__
+#undef INT_FAST64_MAX
+#define INT_FAST64_MAX __INT_FAST64_MAX__
+#undef INT_FAST64_MIN
+#define INT_FAST64_MIN (-INT_FAST64_MAX - 1)
+#undef UINT_FAST64_MAX
+#define UINT_FAST64_MAX __UINT_FAST64_MAX__
+
+#ifdef __INTPTR_MAX__
+# undef INTPTR_MAX
+# define INTPTR_MAX __INTPTR_MAX__
+# undef INTPTR_MIN
+# define INTPTR_MIN (-INTPTR_MAX - 1)
+#endif
+#ifdef __UINTPTR_MAX__
+# undef UINTPTR_MAX
+# define UINTPTR_MAX __UINTPTR_MAX__
+#endif
+
+#undef INTMAX_MAX
+#define INTMAX_MAX __INTMAX_MAX__
+#undef INTMAX_MIN
+#define INTMAX_MIN (-INTMAX_MAX - 1)
+#undef UINTMAX_MAX
+#define UINTMAX_MAX __UINTMAX_MAX__
+
+/* 7.18.3 Limits of other integer types */
+
+#undef PTRDIFF_MAX
+#define PTRDIFF_MAX __PTRDIFF_MAX__
+#undef PTRDIFF_MIN
+#define PTRDIFF_MIN (-PTRDIFF_MAX - 1)
+
+#undef SIG_ATOMIC_MAX
+#define SIG_ATOMIC_MAX __SIG_ATOMIC_MAX__
+#undef SIG_ATOMIC_MIN
+#define SIG_ATOMIC_MIN __SIG_ATOMIC_MIN__
+
+#undef SIZE_MAX
+#define SIZE_MAX __SIZE_MAX__
+
+#undef WCHAR_MAX
+#define WCHAR_MAX __WCHAR_MAX__
+#undef WCHAR_MIN
+#define WCHAR_MIN __WCHAR_MIN__
+
+#undef WINT_MAX
+#define WINT_MAX __WINT_MAX__
+#undef WINT_MIN
+#define WINT_MIN __WINT_MIN__
+
+#endif /* (!defined __cplusplus || __cplusplus >= 201103L
+	   || defined __STDC_LIMIT_MACROS)  */
+
+#if (!defined __cplusplus || __cplusplus >= 201103L \
+     || defined __STDC_CONSTANT_MACROS)
+
+#undef INT8_C
+#define INT8_C(c) __INT8_C(c)
+#undef INT16_C
+#define INT16_C(c) __INT16_C(c)
+#undef INT32_C
+#define INT32_C(c) __INT32_C(c)
+#undef INT64_C
+#define INT64_C(c) __INT64_C(c)
+#undef UINT8_C
+#define UINT8_C(c) __UINT8_C(c)
+#undef UINT16_C
+#define UINT16_C(c) __UINT16_C(c)
+#undef UINT32_C
+#define UINT32_C(c) __UINT32_C(c)
+#undef UINT64_C
+#define UINT64_C(c) __UINT64_C(c)
+#undef INTMAX_C
+#define INTMAX_C(c) __INTMAX_C(c)
+#undef UINTMAX_C
+#define UINTMAX_C(c) __UINTMAX_C(c)
+
+#endif /* (!defined __cplusplus || __cplusplus >= 201103L
+	   || defined __STDC_CONSTANT_MACROS) */
+
+#if (defined __STDC_WANT_IEC_60559_BFP_EXT__ \
+     || (defined (__STDC_VERSION__) && __STDC_VERSION__ > 201710L))
+/* TS 18661-1 / C2X widths of integer types.  */
+
+#ifdef __INT8_TYPE__
+# undef INT8_WIDTH
+# define INT8_WIDTH 8
+#endif
+#ifdef __UINT8_TYPE__
+# undef UINT8_WIDTH
+# define UINT8_WIDTH 8
+#endif
+#ifdef __INT16_TYPE__
+# undef INT16_WIDTH
+# define INT16_WIDTH 16
+#endif
+#ifdef __UINT16_TYPE__
+# undef UINT16_WIDTH
+# define UINT16_WIDTH 16
+#endif
+#ifdef __INT32_TYPE__
+# undef INT32_WIDTH
+# define INT32_WIDTH 32
+#endif
+#ifdef __UINT32_TYPE__
+# undef UINT32_WIDTH
+# define UINT32_WIDTH 32
+#endif
+#ifdef __INT64_TYPE__
+# undef INT64_WIDTH
+# define INT64_WIDTH 64
+#endif
+#ifdef __UINT64_TYPE__
+# undef UINT64_WIDTH
+# define UINT64_WIDTH 64
+#endif
+
+#undef INT_LEAST8_WIDTH
+#define INT_LEAST8_WIDTH __INT_LEAST8_WIDTH__
+#undef UINT_LEAST8_WIDTH
+#define UINT_LEAST8_WIDTH __INT_LEAST8_WIDTH__
+#undef INT_LEAST16_WIDTH
+#define INT_LEAST16_WIDTH __INT_LEAST16_WIDTH__
+#undef UINT_LEAST16_WIDTH
+#define UINT_LEAST16_WIDTH __INT_LEAST16_WIDTH__
+#undef INT_LEAST32_WIDTH
+#define INT_LEAST32_WIDTH __INT_LEAST32_WIDTH__
+#undef UINT_LEAST32_WIDTH
+#define UINT_LEAST32_WIDTH __INT_LEAST32_WIDTH__
+#undef INT_LEAST64_WIDTH
+#define INT_LEAST64_WIDTH __INT_LEAST64_WIDTH__
+#undef UINT_LEAST64_WIDTH
+#define UINT_LEAST64_WIDTH __INT_LEAST64_WIDTH__
+
+#undef INT_FAST8_WIDTH
+#define INT_FAST8_WIDTH __INT_FAST8_WIDTH__
+#undef UINT_FAST8_WIDTH
+#define UINT_FAST8_WIDTH __INT_FAST8_WIDTH__
+#undef INT_FAST16_WIDTH
+#define INT_FAST16_WIDTH __INT_FAST16_WIDTH__
+#undef UINT_FAST16_WIDTH
+#define UINT_FAST16_WIDTH __INT_FAST16_WIDTH__
+#undef INT_FAST32_WIDTH
+#define INT_FAST32_WIDTH __INT_FAST32_WIDTH__
+#undef UINT_FAST32_WIDTH
+#define UINT_FAST32_WIDTH __INT_FAST32_WIDTH__
+#undef INT_FAST64_WIDTH
+#define INT_FAST64_WIDTH __INT_FAST64_WIDTH__
+#undef UINT_FAST64_WIDTH
+#define UINT_FAST64_WIDTH __INT_FAST64_WIDTH__
+
+#ifdef __INTPTR_TYPE__
+# undef INTPTR_WIDTH
+# define INTPTR_WIDTH __INTPTR_WIDTH__
+#endif
+#ifdef __UINTPTR_TYPE__
+# undef UINTPTR_WIDTH
+# define UINTPTR_WIDTH __INTPTR_WIDTH__
+#endif
+
+#undef INTMAX_WIDTH
+#define INTMAX_WIDTH __INTMAX_WIDTH__
+#undef UINTMAX_WIDTH
+#define UINTMAX_WIDTH __INTMAX_WIDTH__
+
+#undef PTRDIFF_WIDTH
+#define PTRDIFF_WIDTH __PTRDIFF_WIDTH__
+
+#undef SIG_ATOMIC_WIDTH
+#define SIG_ATOMIC_WIDTH __SIG_ATOMIC_WIDTH__
+
+#undef SIZE_WIDTH
+#define SIZE_WIDTH __SIZE_WIDTH__
+
+#undef WCHAR_WIDTH
+#define WCHAR_WIDTH __WCHAR_WIDTH__
+
+#undef WINT_WIDTH
+#define WINT_WIDTH __WINT_WIDTH__
+
+#endif
+
+#endif /* _GCC_STDINT_H */

lib/gcc/riscv64-unknown-elf/10.1.0/include/stdint.h

@@ -0,0 +1,14 @@
+#ifndef _GCC_WRAP_STDINT_H
+#if __STDC_HOSTED__
+# if defined __cplusplus && __cplusplus >= 201103L
+#  undef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS
+#  undef __STDC_CONSTANT_MACROS
+#  define __STDC_CONSTANT_MACROS
+# endif
+# include_next <stdint.h>
+#else
+# include "stdint-gcc.h"
+#endif
+#define _GCC_WRAP_STDINT_H
+#endif

lib/gcc/riscv64-unknown-elf/10.1.0/include/stdnoreturn.h

@@ -0,0 +1,35 @@
+/* Copyright (C) 2011-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/* ISO C1X: 7.23 _Noreturn <stdnoreturn.h>.  */
+
+#ifndef _STDNORETURN_H
+#define _STDNORETURN_H
+
+#ifndef __cplusplus
+
+#define noreturn _Noreturn
+
+#endif
+
+#endif	/* stdnoreturn.h */

lib/gcc/riscv64-unknown-elf/10.1.0/include/tgmath.h

@@ -0,0 +1,127 @@
+/* Copyright (C) 2004-2020 Free Software Foundation, Inc.
+   Contributed by Apple, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO C Standard:  7.22  Type-generic math <tgmath.h>
+ */
+
+#ifndef _TGMATH_H
+#define _TGMATH_H
+
+#include <math.h>
+
+#ifndef __cplusplus
+#include <complex.h>
+
+/* Naming convention: generic macros are defining using
+   __TGMATH_CPLX*, __TGMATH_REAL*, and __TGMATH_CPLX_ONLY.  _CPLX
+   means the generic argument(s) may be real or complex, _REAL means
+   real only, _CPLX means complex only.  If there is no suffix, we are
+   defining a function of one argument.  If the suffix is _n
+   it is a function of n arguments.  We only define these macros for
+   values of n that are needed. */
+
+#define __TGMATH_CPLX(z,R,C)				\
+  __builtin_tgmath (R##f, R, R##l, C##f, C, C##l, (z))
+
+#define __TGMATH_CPLX_2(z1,z2,R,C)				\
+  __builtin_tgmath (R##f, R, R##l, C##f, C, C##l, (z1), (z2))
+
+#define __TGMATH_REAL(x,R) \
+  __builtin_tgmath (R##f, R, R##l, (x))
+#define __TGMATH_REAL_2(x,y,R) \
+  __builtin_tgmath (R##f, R, R##l, (x), (y))
+#define __TGMATH_REAL_3(x,y,z,R) \
+  __builtin_tgmath (R##f, R, R##l, (x), (y), (z))
+#define __TGMATH_CPLX_ONLY(z,C) \
+  __builtin_tgmath (C##f, C, C##l, (z))
+
+/* Functions defined in both <math.h> and <complex.h> (7.22p4) */
+#define acos(z)          __TGMATH_CPLX(z, acos, cacos)
+#define asin(z)          __TGMATH_CPLX(z, asin, casin)
+#define atan(z)          __TGMATH_CPLX(z, atan, catan)
+#define acosh(z)         __TGMATH_CPLX(z, acosh, cacosh)
+#define asinh(z)         __TGMATH_CPLX(z, asinh, casinh)
+#define atanh(z)         __TGMATH_CPLX(z, atanh, catanh)
+#define cos(z)           __TGMATH_CPLX(z, cos, ccos)
+#define sin(z)           __TGMATH_CPLX(z, sin, csin)
+#define tan(z)           __TGMATH_CPLX(z, tan, ctan)
+#define cosh(z)          __TGMATH_CPLX(z, cosh, ccosh)
+#define sinh(z)          __TGMATH_CPLX(z, sinh, csinh)
+#define tanh(z)          __TGMATH_CPLX(z, tanh, ctanh)
+#define exp(z)           __TGMATH_CPLX(z, exp, cexp)
+#define log(z)           __TGMATH_CPLX(z, log, clog)
+#define pow(z1,z2)       __TGMATH_CPLX_2(z1, z2, pow, cpow)
+#define sqrt(z)          __TGMATH_CPLX(z, sqrt, csqrt)
+#define fabs(z)          __TGMATH_CPLX(z, fabs, cabs)
+
+/* Functions defined in <math.h> only (7.22p5) */
+#define atan2(x,y)       __TGMATH_REAL_2(x, y, atan2)
+#define cbrt(x)          __TGMATH_REAL(x, cbrt)
+#define ceil(x)          __TGMATH_REAL(x, ceil)
+#define copysign(x,y)    __TGMATH_REAL_2(x, y, copysign)
+#define erf(x)           __TGMATH_REAL(x, erf)
+#define erfc(x)          __TGMATH_REAL(x, erfc)
+#define exp2(x)          __TGMATH_REAL(x, exp2)
+#define expm1(x)         __TGMATH_REAL(x, expm1)
+#define fdim(x,y)        __TGMATH_REAL_2(x, y, fdim)
+#define floor(x)         __TGMATH_REAL(x, floor)
+#define fma(x,y,z)       __TGMATH_REAL_3(x, y, z, fma)
+#define fmax(x,y)        __TGMATH_REAL_2(x, y, fmax)
+#define fmin(x,y)        __TGMATH_REAL_2(x, y, fmin)
+#define fmod(x,y)        __TGMATH_REAL_2(x, y, fmod)
+#define frexp(x,y)       __TGMATH_REAL_2(x, y, frexp)
+#define hypot(x,y)       __TGMATH_REAL_2(x, y, hypot)
+#define ilogb(x)         __TGMATH_REAL(x, ilogb)
+#define ldexp(x,y)       __TGMATH_REAL_2(x, y, ldexp)
+#define lgamma(x)        __TGMATH_REAL(x, lgamma)
+#define llrint(x)        __TGMATH_REAL(x, llrint)
+#define llround(x)       __TGMATH_REAL(x, llround)
+#define log10(x)         __TGMATH_REAL(x, log10)
+#define log1p(x)         __TGMATH_REAL(x, log1p)
+#define log2(x)          __TGMATH_REAL(x, log2)
+#define logb(x)          __TGMATH_REAL(x, logb)
+#define lrint(x)         __TGMATH_REAL(x, lrint)
+#define lround(x)        __TGMATH_REAL(x, lround)
+#define nearbyint(x)     __TGMATH_REAL(x, nearbyint)
+#define nextafter(x,y)   __TGMATH_REAL_2(x, y, nextafter)
+#define nexttoward(x,y)  __TGMATH_REAL_2(x, y, nexttoward)
+#define remainder(x,y)   __TGMATH_REAL_2(x, y, remainder)
+#define remquo(x,y,z)    __TGMATH_REAL_3(x, y, z, remquo)
+#define rint(x)          __TGMATH_REAL(x, rint)
+#define round(x)         __TGMATH_REAL(x, round)
+#define scalbn(x,y)      __TGMATH_REAL_2(x, y, scalbn)
+#define scalbln(x,y)     __TGMATH_REAL_2(x, y, scalbln)
+#define tgamma(x)        __TGMATH_REAL(x, tgamma)
+#define trunc(x)         __TGMATH_REAL(x, trunc)
+
+/* Functions defined in <complex.h> only (7.22p6) */
+#define carg(z)          __TGMATH_CPLX_ONLY(z, carg)
+#define cimag(z)         __TGMATH_CPLX_ONLY(z, cimag)
+#define conj(z)          __TGMATH_CPLX_ONLY(z, conj)
+#define cproj(z)         __TGMATH_CPLX_ONLY(z, cproj)
+#define creal(z)         __TGMATH_CPLX_ONLY(z, creal)
+
+#endif /* __cplusplus */
+#endif /* _TGMATH_H */

lib/gcc/riscv64-unknown-elf/10.1.0/include/unwind.h

@@ -0,0 +1,297 @@
+/* Exception handling and frame unwind runtime interface routines.
+   Copyright (C) 2001-2020 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   GCC is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+   License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is derived from the C++ ABI for IA-64.  Where we diverge
+   for cross-architecture compatibility are noted with "@@@".  */
+
+#ifndef _UNWIND_H
+#define _UNWIND_H
+
+#if defined (__SEH__) && !defined (__USING_SJLJ_EXCEPTIONS__)
+/* Only for _GCC_specific_handler.  */
+#include <windows.h>
+#endif
+
+#ifndef HIDE_EXPORTS
+#pragma GCC visibility push(default)
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Level 1: Base ABI  */
+
+/* @@@ The IA-64 ABI uses uint64 throughout.  Most places this is
+   inefficient for 32-bit and smaller machines.  */
+typedef unsigned _Unwind_Word __attribute__((__mode__(__unwind_word__)));
+typedef signed _Unwind_Sword __attribute__((__mode__(__unwind_word__)));
+#if defined(__ia64__) && defined(__hpux__)
+typedef unsigned _Unwind_Ptr __attribute__((__mode__(__word__)));
+#else
+typedef unsigned _Unwind_Ptr __attribute__((__mode__(__pointer__)));
+#endif
+typedef unsigned _Unwind_Internal_Ptr __attribute__((__mode__(__pointer__)));
+
+/* @@@ The IA-64 ABI uses a 64-bit word to identify the producer and
+   consumer of an exception.  We'll go along with this for now even on
+   32-bit machines.  We'll need to provide some other option for
+   16-bit machines and for machines with > 8 bits per byte.  */
+typedef unsigned _Unwind_Exception_Class __attribute__((__mode__(__DI__)));
+
+/* The unwind interface uses reason codes in several contexts to
+   identify the reasons for failures or other actions.  */
+typedef enum
+{
+  _URC_NO_REASON = 0,
+  _URC_FOREIGN_EXCEPTION_CAUGHT = 1,
+  _URC_FATAL_PHASE2_ERROR = 2,
+  _URC_FATAL_PHASE1_ERROR = 3,
+  _URC_NORMAL_STOP = 4,
+  _URC_END_OF_STACK = 5,
+  _URC_HANDLER_FOUND = 6,
+  _URC_INSTALL_CONTEXT = 7,
+  _URC_CONTINUE_UNWIND = 8
+} _Unwind_Reason_Code;
+
+
+/* The unwind interface uses a pointer to an exception header object
+   as its representation of an exception being thrown. In general, the
+   full representation of an exception object is language- and
+   implementation-specific, but it will be prefixed by a header
+   understood by the unwind interface.  */
+
+struct _Unwind_Exception;
+
+typedef void (*_Unwind_Exception_Cleanup_Fn) (_Unwind_Reason_Code,
+					      struct _Unwind_Exception *);
+
+struct _Unwind_Exception
+{
+  _Unwind_Exception_Class exception_class;
+  _Unwind_Exception_Cleanup_Fn exception_cleanup;
+
+#if !defined (__USING_SJLJ_EXCEPTIONS__) && defined (__SEH__)
+  _Unwind_Word private_[6];
+#else
+  _Unwind_Word private_1;
+  _Unwind_Word private_2;
+#endif
+
+  /* @@@ The IA-64 ABI says that this structure must be double-word aligned.
+     Taking that literally does not make much sense generically.  Instead we
+     provide the maximum alignment required by any type for the machine.  */
+} __attribute__((__aligned__));
+
+
+/* The ACTIONS argument to the personality routine is a bitwise OR of one
+   or more of the following constants.  */
+typedef int _Unwind_Action;
+
+#define _UA_SEARCH_PHASE	1
+#define _UA_CLEANUP_PHASE	2
+#define _UA_HANDLER_FRAME	4
+#define _UA_FORCE_UNWIND	8
+#define _UA_END_OF_STACK	16
+
+/* The target can override this macro to define any back-end-specific
+   attributes required for the lowest-level stack frame.  */
+#ifndef LIBGCC2_UNWIND_ATTRIBUTE
+#define LIBGCC2_UNWIND_ATTRIBUTE
+#endif
+
+/* This is an opaque type used to refer to a system-specific data
+   structure used by the system unwinder. This context is created and
+   destroyed by the system, and passed to the personality routine
+   during unwinding.  */
+struct _Unwind_Context;
+
+/* Raise an exception, passing along the given exception object.  */
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_RaiseException (struct _Unwind_Exception *);
+
+/* Raise an exception for forced unwinding.  */
+
+typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn)
+     (int, _Unwind_Action, _Unwind_Exception_Class,
+      struct _Unwind_Exception *, struct _Unwind_Context *, void *);
+
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_ForcedUnwind (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
+
+/* Helper to invoke the exception_cleanup routine.  */
+extern void _Unwind_DeleteException (struct _Unwind_Exception *);
+
+/* Resume propagation of an existing exception.  This is used after
+   e.g. executing cleanup code, and not to implement rethrowing.  */
+extern void LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_Resume (struct _Unwind_Exception *);
+
+/* @@@ Resume propagation of a FORCE_UNWIND exception, or to rethrow
+   a normal exception that was handled.  */
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_Resume_or_Rethrow (struct _Unwind_Exception *);
+
+/* @@@ Use unwind data to perform a stack backtrace.  The trace callback
+   is called for every stack frame in the call chain, but no cleanup
+   actions are performed.  */
+typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)
+     (struct _Unwind_Context *, void *);
+
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_Backtrace (_Unwind_Trace_Fn, void *);
+
+/* These functions are used for communicating information about the unwind
+   context (i.e. the unwind descriptors and the user register state) between
+   the unwind library and the personality routine and landing pad.  Only
+   selected registers may be manipulated.  */
+
+extern _Unwind_Word _Unwind_GetGR (struct _Unwind_Context *, int);
+extern void _Unwind_SetGR (struct _Unwind_Context *, int, _Unwind_Word);
+
+extern _Unwind_Ptr _Unwind_GetIP (struct _Unwind_Context *);
+extern _Unwind_Ptr _Unwind_GetIPInfo (struct _Unwind_Context *, int *);
+extern void _Unwind_SetIP (struct _Unwind_Context *, _Unwind_Ptr);
+
+/* @@@ Retrieve the CFA of the given context.  */
+extern _Unwind_Word _Unwind_GetCFA (struct _Unwind_Context *);
+
+extern void *_Unwind_GetLanguageSpecificData (struct _Unwind_Context *);
+
+extern _Unwind_Ptr _Unwind_GetRegionStart (struct _Unwind_Context *);
+
+
+/* The personality routine is the function in the C++ (or other language)
+   runtime library which serves as an interface between the system unwind
+   library and language-specific exception handling semantics.  It is
+   specific to the code fragment described by an unwind info block, and
+   it is always referenced via the pointer in the unwind info block, and
+   hence it has no ABI-specified name.
+
+   Note that this implies that two different C++ implementations can
+   use different names, and have different contents in the language
+   specific data area.  Moreover, that the language specific data
+   area contains no version info because name of the function invoked
+   provides more effective versioning by detecting at link time the
+   lack of code to handle the different data format.  */
+
+typedef _Unwind_Reason_Code (*_Unwind_Personality_Fn)
+     (int, _Unwind_Action, _Unwind_Exception_Class,
+      struct _Unwind_Exception *, struct _Unwind_Context *);
+
+/* @@@ The following alternate entry points are for setjmp/longjmp
+   based unwinding.  */
+
+struct SjLj_Function_Context;
+extern void _Unwind_SjLj_Register (struct SjLj_Function_Context *);
+extern void _Unwind_SjLj_Unregister (struct SjLj_Function_Context *);
+
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_SjLj_RaiseException (struct _Unwind_Exception *);
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_SjLj_ForcedUnwind (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
+extern void LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_SjLj_Resume (struct _Unwind_Exception *);
+extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
+_Unwind_SjLj_Resume_or_Rethrow (struct _Unwind_Exception *);
+
+/* @@@ The following provide access to the base addresses for text
+   and data-relative addressing in the LDSA.  In order to stay link
+   compatible with the standard ABI for IA-64, we inline these.  */
+
+#ifdef __ia64__
+static inline _Unwind_Ptr
+_Unwind_GetDataRelBase (struct _Unwind_Context *_C)
+{
+  /* The GP is stored in R1.  */
+  return _Unwind_GetGR (_C, 1);
+}
+
+static inline _Unwind_Ptr
+_Unwind_GetTextRelBase (struct _Unwind_Context *_C __attribute__ ((__unused__)))
+{
+  __builtin_abort ();
+  return 0;
+}
+
+/* @@@ Retrieve the Backing Store Pointer of the given context.  */
+extern _Unwind_Word _Unwind_GetBSP (struct _Unwind_Context *);
+#else
+extern _Unwind_Ptr _Unwind_GetDataRelBase (struct _Unwind_Context *);
+extern _Unwind_Ptr _Unwind_GetTextRelBase (struct _Unwind_Context *);
+#endif
+
+/* @@@ Given an address, return the entry point of the function that
+   contains it.  */
+extern void * _Unwind_FindEnclosingFunction (void *pc);
+
+#ifndef __SIZEOF_LONG__
+  #error "__SIZEOF_LONG__ macro not defined"
+#endif
+
+#ifndef __SIZEOF_POINTER__
+  #error "__SIZEOF_POINTER__ macro not defined"
+#endif
+
+
+/* leb128 type numbers have a potentially unlimited size.
+   The target of the following definitions of _sleb128_t and _uleb128_t
+   is to have efficient data types large enough to hold the leb128 type
+   numbers used in the unwind code.
+   Mostly these types will simply be defined to long and unsigned long
+   except when a unsigned long data type on the target machine is not
+   capable of storing a pointer.  */
+
+#if __SIZEOF_LONG__ >= __SIZEOF_POINTER__
+  typedef long _sleb128_t;
+  typedef unsigned long _uleb128_t;
+#elif __SIZEOF_LONG_LONG__ >= __SIZEOF_POINTER__
+  typedef long long _sleb128_t;
+  typedef unsigned long long _uleb128_t;
+#else
+# error "What type shall we use for _sleb128_t?"
+#endif
+
+#if defined (__SEH__) && !defined (__USING_SJLJ_EXCEPTIONS__)
+/* Handles the mapping from SEH to GCC interfaces.  */
+EXCEPTION_DISPOSITION _GCC_specific_handler (PEXCEPTION_RECORD, void *,
+					     PCONTEXT, PDISPATCHER_CONTEXT,
+					     _Unwind_Personality_Fn);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifndef HIDE_EXPORTS
+#pragma GCC visibility pop
+#endif
+
+/* Additional actions to unwind number of stack frames.  */
+#define _Unwind_Frames_Extra(frames)
+
+/* Increment frame count.  */
+#define _Unwind_Frames_Increment(context, frames) frames++
+
+#endif /* unwind.h */

lib/gcc/riscv64-unknown-elf/10.1.0/include/varargs.h

@@ -0,0 +1,7 @@
+#ifndef _VARARGS_H
+#define _VARARGS_H
+
+#error "GCC no longer implements <varargs.h>."
+#error "Revise your code to use <stdarg.h>."
+
+#endif

lib/gcc/riscv64-unknown-elf/10.1.0/install-tools/fixinc_list

@@ -0,0 +1 @@
+;

lib/gcc/riscv64-unknown-elf/10.1.0/install-tools/gsyslimits.h

@@ -0,0 +1,8 @@
+/* syslimits.h stands for the system's own limits.h file.
+   If we can use it ok unmodified, then we install this text.
+   If fixincludes fixes it, then the fixed version is installed
+   instead of this text.  */
+
+#define _GCC_NEXT_LIMITS_H		/* tell gcc's limits.h to recurse */
+#include_next <limits.h>
+#undef _GCC_NEXT_LIMITS_H

lib/gcc/riscv64-unknown-elf/10.1.0/install-tools/include/README

@@ -0,0 +1,14 @@
+This README file is copied into the directory for GCC-only header files
+when fixincludes is run by the makefile for GCC.
+
+Many of the files in this directory were automatically edited from the
+standard system header files by the fixincludes process.  They are
+system-specific, and will not work on any other kind of system.  They
+are also not part of GCC.  The reason we have to do this is because
+GCC requires ANSI C headers and many vendors supply ANSI-incompatible
+headers.
+
+Because this is an automated process, sometimes headers get "fixed"
+that do not, strictly speaking, need a fix.  As long as nothing is broken
+by the process, it is just an unfortunate collateral inconvenience.
+We would like to rectify it, if it is not "too inconvenient".

lib/gcc/riscv64-unknown-elf/10.1.0/install-tools/include/limits.h

@@ -0,0 +1,198 @@
+/* Copyright (C) 1992-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/* This administrivia gets added to the beginning of limits.h
+   if the system has its own version of limits.h.  */
+
+/* We use _GCC_LIMITS_H_ because we want this not to match
+   any macros that the system's limits.h uses for its own purposes.  */
+#ifndef _GCC_LIMITS_H_  /* Terminated in limity.h.  */
+#define _GCC_LIMITS_H_
+
+#ifndef _LIBC_LIMITS_H_
+/* Use "..." so that we find syslimits.h only in this same directory.  */
+#include "syslimits.h"
+#endif
+/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef _LIMITS_H___
+#define _LIMITS_H___
+
+/* Number of bits in a `char'.  */
+#undef CHAR_BIT
+#define CHAR_BIT __CHAR_BIT__
+
+/* Maximum length of a multibyte character.  */
+#ifndef MB_LEN_MAX
+#define MB_LEN_MAX 1
+#endif
+
+/* Minimum and maximum values a `signed char' can hold.  */
+#undef SCHAR_MIN
+#define SCHAR_MIN (-SCHAR_MAX - 1)
+#undef SCHAR_MAX
+#define SCHAR_MAX __SCHAR_MAX__
+
+/* Maximum value an `unsigned char' can hold.  (Minimum is 0).  */
+#undef UCHAR_MAX
+#if __SCHAR_MAX__ == __INT_MAX__
+# define UCHAR_MAX (SCHAR_MAX * 2U + 1U)
+#else
+# define UCHAR_MAX (SCHAR_MAX * 2 + 1)
+#endif
+
+/* Minimum and maximum values a `char' can hold.  */
+#ifdef __CHAR_UNSIGNED__
+# undef CHAR_MIN
+# if __SCHAR_MAX__ == __INT_MAX__
+#  define CHAR_MIN 0U
+# else
+#  define CHAR_MIN 0
+# endif
+# undef CHAR_MAX
+# define CHAR_MAX UCHAR_MAX
+#else
+# undef CHAR_MIN
+# define CHAR_MIN SCHAR_MIN
+# undef CHAR_MAX
+# define CHAR_MAX SCHAR_MAX
+#endif
+
+/* Minimum and maximum values a `signed short int' can hold.  */
+#undef SHRT_MIN
+#define SHRT_MIN (-SHRT_MAX - 1)
+#undef SHRT_MAX
+#define SHRT_MAX __SHRT_MAX__
+
+/* Maximum value an `unsigned short int' can hold.  (Minimum is 0).  */
+#undef USHRT_MAX
+#if __SHRT_MAX__ == __INT_MAX__
+# define USHRT_MAX (SHRT_MAX * 2U + 1U)
+#else
+# define USHRT_MAX (SHRT_MAX * 2 + 1)
+#endif
+
+/* Minimum and maximum values a `signed int' can hold.  */
+#undef INT_MIN
+#define INT_MIN (-INT_MAX - 1)
+#undef INT_MAX
+#define INT_MAX __INT_MAX__
+
+/* Maximum value an `unsigned int' can hold.  (Minimum is 0).  */
+#undef UINT_MAX
+#define UINT_MAX (INT_MAX * 2U + 1U)
+
+/* Minimum and maximum values a `signed long int' can hold.
+   (Same as `int').  */
+#undef LONG_MIN
+#define LONG_MIN (-LONG_MAX - 1L)
+#undef LONG_MAX
+#define LONG_MAX __LONG_MAX__
+
+/* Maximum value an `unsigned long int' can hold.  (Minimum is 0).  */
+#undef ULONG_MAX
+#define ULONG_MAX (LONG_MAX * 2UL + 1UL)
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+/* Minimum and maximum values a `signed long long int' can hold.  */
+# undef LLONG_MIN
+# define LLONG_MIN (-LLONG_MAX - 1LL)
+# undef LLONG_MAX
+# define LLONG_MAX __LONG_LONG_MAX__
+
+/* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
+# undef ULLONG_MAX
+# define ULLONG_MAX (LLONG_MAX * 2ULL + 1ULL)
+#endif
+
+#if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
+/* Minimum and maximum values a `signed long long int' can hold.  */
+# undef LONG_LONG_MIN
+# define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL)
+# undef LONG_LONG_MAX
+# define LONG_LONG_MAX __LONG_LONG_MAX__
+
+/* Maximum value an `unsigned long long int' can hold.  (Minimum is 0).  */
+# undef ULONG_LONG_MAX
+# define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1ULL)
+#endif
+
+#if (defined __STDC_WANT_IEC_60559_BFP_EXT__ \
+     || (defined (__STDC_VERSION__) && __STDC_VERSION__ > 201710L))
+/* TS 18661-1 / C2X widths of integer types.  */
+# undef CHAR_WIDTH
+# define CHAR_WIDTH __SCHAR_WIDTH__
+# undef SCHAR_WIDTH
+# define SCHAR_WIDTH __SCHAR_WIDTH__
+# undef UCHAR_WIDTH
+# define UCHAR_WIDTH __SCHAR_WIDTH__
+# undef SHRT_WIDTH
+# define SHRT_WIDTH __SHRT_WIDTH__
+# undef USHRT_WIDTH
+# define USHRT_WIDTH __SHRT_WIDTH__
+# undef INT_WIDTH
+# define INT_WIDTH __INT_WIDTH__
+# undef UINT_WIDTH
+# define UINT_WIDTH __INT_WIDTH__
+# undef LONG_WIDTH
+# define LONG_WIDTH __LONG_WIDTH__
+# undef ULONG_WIDTH
+# define ULONG_WIDTH __LONG_WIDTH__
+# undef LLONG_WIDTH
+# define LLONG_WIDTH __LONG_LONG_WIDTH__
+# undef ULLONG_WIDTH
+# define ULLONG_WIDTH __LONG_LONG_WIDTH__
+#endif
+
+#endif /* _LIMITS_H___ */
+/* This administrivia gets added to the end of limits.h
+   if the system has its own version of limits.h.  */
+
+#else /* not _GCC_LIMITS_H_ */
+
+#ifdef _GCC_NEXT_LIMITS_H
+#include_next <limits.h>		/* recurse down to the real one */
+#endif
+
+#endif /* not _GCC_LIMITS_H_ */

lib/gcc/riscv64-unknown-elf/10.1.0/install-tools/mkheaders.conf

@@ -0,0 +1,3 @@
+SYSTEM_HEADER_DIR="/mnt/f/gnu/risc-v-2020-06/out/riscv64-unknown-elf${sysroot_headers_suffix}/include"
+OTHER_FIXINCLUDES_DIRS=""
+STMP_FIXINC="stmp-fixinc"