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-rw-r--r--sysdeps/riscv/nptl/bits/pthreadtypes-arch.h26
-rw-r--r--sysdeps/riscv/nptl/bits/struct_rwlock.h27
2 files changed, 40 insertions, 13 deletions
diff --git a/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h b/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h
index c3c72d6c10..8a602e864a 100644
--- a/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h
@@ -21,18 +21,22 @@
 
 #include <bits/endian.h>
 
-#if __riscv_xlen == 64
-# define __SIZEOF_PTHREAD_ATTR_T 		56
-# define __SIZEOF_PTHREAD_MUTEX_T 		40
-# define __SIZEOF_PTHREAD_MUTEXATTR_T 		 4
-# define __SIZEOF_PTHREAD_COND_T 		48
-# define __SIZEOF_PTHREAD_CONDATTR_T 		 4
-# define __SIZEOF_PTHREAD_RWLOCK_T 		56
-# define __SIZEOF_PTHREAD_RWLOCKATTR_T 		 8
-# define __SIZEOF_PTHREAD_BARRIER_T 		32
-# define __SIZEOF_PTHREAD_BARRIERATTR_T 	 4
+#define __SIZEOF_PTHREAD_MUTEXATTR_T		4
+#define __SIZEOF_PTHREAD_COND_T			48
+#define __SIZEOF_PTHREAD_CONDATTR_T		4
+#define __SIZEOF_PTHREAD_RWLOCKATTR_T		8
+#define __SIZEOF_PTHREAD_BARRIERATTR_T		4
+
+#if __WORDSIZE == 64
+# define __SIZEOF_PTHREAD_ATTR_T		56
+# define __SIZEOF_PTHREAD_MUTEX_T		40
+# define __SIZEOF_PTHREAD_RWLOCK_T		56
+# define __SIZEOF_PTHREAD_BARRIER_T		32
 #else
-# error "rv32i-based systems are not supported"
+# define __SIZEOF_PTHREAD_ATTR_T		32
+# define __SIZEOF_PTHREAD_MUTEX_T		32
+# define __SIZEOF_PTHREAD_RWLOCK_T		48
+# define __SIZEOF_PTHREAD_BARRIER_T		20
 #endif
 
 #define __LOCK_ALIGNMENT
diff --git a/sysdeps/riscv/nptl/bits/struct_rwlock.h b/sysdeps/riscv/nptl/bits/struct_rwlock.h
index acfaa75e1b..dc467d42c7 100644
--- a/sysdeps/riscv/nptl/bits/struct_rwlock.h
+++ b/sysdeps/riscv/nptl/bits/struct_rwlock.h
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #ifndef _RWLOCK_INTERNAL_H
 #define _RWLOCK_INTERNAL_H
@@ -32,14 +32,37 @@ struct __pthread_rwlock_arch_t
   unsigned int __writers_futex;
   unsigned int __pad3;
   unsigned int __pad4;
+#if __WORDSIZE == 64
   int __cur_writer;
   int __shared;
   unsigned long int __pad1;
   unsigned long int __pad2;
   unsigned int __flags;
+#else
+# if __BYTE_ORDER == __BIG_ENDIAN
+  unsigned char __pad1;
+  unsigned char __pad2;
+  unsigned char __shared;
+  unsigned char __flags;
+# else
+  unsigned char __flags;
+  unsigned char __shared;
+  unsigned char __pad1;
+  unsigned char __pad2;
+# endif
+  int __cur_writer;
+#endif
 };
 
-#define __PTHREAD_RWLOCK_INITIALIZER(__flags) \
+#if __WORDSIZE == 64
+# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \
   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags
+#elif __BYTE_ORDER == __BIG_ENDIAN
+# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \
+  0, 0, 0, 0, 0, 0, 0, 0, 0, __flags, 0
+#else
+# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \
+  0, 0, 0, 0, 0, 0, __flags, 0, 0, 0, 0
+#endif
 
 #endif