riscv-gnu-toolchain/patches/newlib

--- original-newlib/libgloss/configure
+++ newlib/libgloss/configure
@@ -678,6 +678,7 @@ sparc_leon
 sparc
 wince
 mips
+riscv
 rs6000
 mn10200
 mn10300
@@ -2449,6 +2450,10 @@ case "${target}" in
 	subdirs="$subdirs mips"
 
 	;;
+  riscv*-*-*)
+	subdirs="$subdirs riscv"
+
+	;;
   powerpc-*-*|powerpcle-*-*)
 	subdirs="$subdirs rs6000"
 
--- original-newlib/libgloss/configure.in
+++ newlib/libgloss/configure.in
@@ -75,6 +75,9 @@ case "${target}" in
   mips*-*-*)
 	AC_CONFIG_SUBDIRS([mips])
 	;;
+  riscv*-*-*)
+	AC_CONFIG_SUBDIRS([riscv])
+	;;
   powerpc-*-*|powerpcle-*-*)
 	AC_CONFIG_SUBDIRS([rs6000])
 	;;
--- original-newlib/newlib/configure.host
+++ newlib/newlib/configure.host
@@ -210,6 +210,10 @@ case "${host_cpu}" in
   mep)
 	machine_dir=mep
 	;;
+  riscv*)
+	machine_dir=riscv
+	newlib_cflags="${newlib_cflags}"
+	;;
   mips*)
 	machine_dir=mips
 	;;
--- original-newlib/newlib/libc/include/machine/ieeefp.h
+++ newlib/newlib/libc/include/machine/ieeefp.h
@@ -170,6 +170,14 @@
 #define __IEEE_LITTLE_ENDIAN
 #endif
 
+#ifdef __riscv__
+# ifdef __RISCVEL__
+#  define __IEEE_LITTLE_ENDIAN
+# else
+#  define __IEEE_BIG_ENDIAN
+# endif
+#endif
+
 #ifdef __i960__
 #define __IEEE_LITTLE_ENDIAN
 #endif
--- original-newlib/newlib/libc/include/machine/setjmp.h
+++ newlib/newlib/libc/include/machine/setjmp.h
@@ -338,6 +338,11 @@ _BEGIN_STD_C
 #define _JBLEN 0x44
 #endif
 
+#ifdef __riscv__
+#define _JBTYPE long
+#define _JBLEN ((16*sizeof(long) + 12*sizeof(double))/sizeof(long))
+#endif
+
 #ifdef _JBLEN
 #ifdef _JBTYPE
 typedef	_JBTYPE jmp_buf[_JBLEN];
--- original-newlib/newlib/libc/include/sys/config.h
+++ newlib/newlib/libc/include/sys/config.h
@@ -75,7 +75,7 @@
 #define _POINTER_INT short
 #endif
 
-#if defined(__m68k__) || defined(__mc68000__)
+#if defined(__m68k__) || defined(__mc68000__) || defined(__riscv__)
 #define _READ_WRITE_RETURN_TYPE _ssize_t
 #endif
 
--- original-newlib/newlib/libc/include/sys/stat.h
+++ newlib/newlib/libc/include/sys/stat.h
@@ -25,6 +25,33 @@ extern "C" {
 #else
 struct	stat 
 {
+#ifdef __riscv
+  dev_t st_dev;
+  ino_t st_ino;
+#ifdef __riscv32
+  int __st_ino_pad;
+#endif
+  mode_t st_mode;
+  nlink_t st_nlink;
+  uid_t st_uid;
+  gid_t st_gid;
+  dev_t st_rdev;
+  dev_t __pad1;
+  off_t st_size;
+#ifdef __riscv32
+  int __st_size_pad;
+#endif
+  blksize_t st_blksize;
+  int __pad2;
+  blkcnt_t st_blocks;
+#ifdef __riscv32
+  int __st_blocks_pad;
+#endif
+  struct timespec st_atim;
+  struct timespec st_mtim;
+  struct timespec st_ctim;
+  int __glibc_reserved[2];
+#else
   dev_t		st_dev;
   ino_t		st_ino;
   mode_t	st_mode;
@@ -57,9 +84,10 @@ struct	stat
   long	st_spare4[2];
 #endif
 #endif
+#endif
 };
 
-#if defined(__rtems__)
+#if defined(__rtems__) || defined(__riscv__)
 #define st_atime st_atim.tv_sec
 #define st_ctime st_ctim.tv_sec
 #define st_mtime st_mtim.tv_sec
--- original-newlib/newlib/libc/include/sys/types.h
+++ newlib/newlib/libc/include/sys/types.h
@@ -147,6 +147,9 @@ typedef	char *	caddr_t;
 #define __caddr_t_defined
 #endif
 
+#ifdef __ino_t_defined
+typedef __ino_t ino_t;
+#else
 #ifndef __CYGWIN__
 #if defined(__MS_types__) || defined(__rtems__) || \
     defined(__sparc__) || defined(__SPU__)
@@ -155,6 +158,7 @@ typedef	unsigned long	ino_t;
 typedef	unsigned short	ino_t;
 #endif
 #endif /*__CYGWIN__*/
+#endif /*__ino_t_defined*/
 
 #ifdef __MS_types__
 typedef unsigned long vm_offset_t;
@@ -197,6 +201,9 @@ typedef int pid_t;
 typedef _mode_t mode_t;
 #endif
 
+#ifdef __mode_t_defined
+typedef __mode_t mode_t;
+#else
 #ifndef __CYGWIN__
 typedef	long key_t;
 #endif
@@ -218,8 +225,13 @@ typedef unsigned int mode_t _ST_INT32;
 #endif
 #endif /* ! __MS_types__ */
 #endif /*__CYGWIN__*/
+#endif /*__mode_t_defined*/
 
+#ifdef __nlink_t_defined
+typedef __nlink_t nlink_t;
+#else
 typedef unsigned short nlink_t;
+#endif /*__nlink_t_defined*/
 
 /* We don't define fd_set and friends if we are compiling POSIX
    source, or if we have included (or may include as indicated
--- original-newlib/newlib/libc/machine/configure
+++ newlib/newlib/libc/machine/configure
@@ -811,6 +811,7 @@ m88k
 mep
 microblaze
 mips
+riscv
 mn10200
 mn10300
 moxie
@@ -11882,6 +11883,8 @@ subdirs="$subdirs a29k"
  ;;
 	mips) subdirs="$subdirs mips"
  ;;
+	riscv) subdirs="$subdirs riscv"
+ ;;
 	mn10200) subdirs="$subdirs mn10200"
  ;;
 	mn10300) subdirs="$subdirs mn10300"
--- original-newlib/newlib/libc/machine/configure.in
+++ newlib/newlib/libc/machine/configure.in
@@ -50,6 +50,7 @@ if test -n "${machine_dir}"; then
 	mep ) AC_CONFIG_SUBDIRS(mep) ;;
 	microblaze ) AC_CONFIG_SUBDIRS(microblaze) ;;
 	mips) AC_CONFIG_SUBDIRS(mips) ;;
+	riscv) AC_CONFIG_SUBDIRS(riscv) ;;
 	mn10200) AC_CONFIG_SUBDIRS(mn10200) ;;
 	mn10300) AC_CONFIG_SUBDIRS(mn10300) ;;
 	moxie) AC_CONFIG_SUBDIRS(moxie) ;;