diff --git a/sysdeps/unix/sysv/linux/riscv/sysconf.c b/sysdeps/unix/sysv/linux/riscv/sysconf.c
new file mode 100644
index 0000000000..e73095528c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/riscv/sysconf.c
@@ -0,0 +1,74 @@
+/* Copyright (C) 2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ . */
+
+#include
+#include
+#include
+
+static long int linux_sysconf (int name);
+
+static inline long int
+sysconf_get_cache_associativity (unsigned long type)
+{
+ return (__getauxval (type) & 0xffff0000) >> 16;
+}
+
+static inline long int
+sysconf_get_cache_linesize (unsigned long type)
+{
+ return __getauxval (type) & 0xffff;
+}
+
+static inline long int
+sysconf_get_cache_size (unsigned long type)
+{
+ return __getauxval (type);
+}
+
+/* Get the value of the system variable NAME. */
+long int
+__sysconf (int name)
+{
+ switch (name)
+ {
+ case _SC_LEVEL1_ICACHE_SIZE:
+ return sysconf_get_cache_size (AT_L1I_CACHESIZE);
+ case _SC_LEVEL1_ICACHE_ASSOC:
+ return sysconf_get_cache_associativity (AT_L1I_CACHEGEOMETRY);
+ case _SC_LEVEL1_ICACHE_LINESIZE:
+ return sysconf_get_cache_linesize (AT_L1I_CACHEGEOMETRY);
+ case _SC_LEVEL1_DCACHE_SIZE:
+ return sysconf_get_cache_size (AT_L1D_CACHESIZE);
+ case _SC_LEVEL1_DCACHE_ASSOC:
+ return sysconf_get_cache_associativity (AT_L1D_CACHEGEOMETRY);
+ case _SC_LEVEL1_DCACHE_LINESIZE:
+ return sysconf_get_cache_linesize (AT_L1D_CACHEGEOMETRY);
+ case _SC_LEVEL2_CACHE_SIZE:
+ return sysconf_get_cache_size (AT_L2_CACHESIZE);
+ case _SC_LEVEL2_CACHE_ASSOC:
+ return sysconf_get_cache_associativity (AT_L2_CACHEGEOMETRY);
+ case _SC_LEVEL2_CACHE_LINESIZE:
+ return sysconf_get_cache_linesize (AT_L2_CACHEGEOMETRY);
+ default:
+ return linux_sysconf (name);
+ }
+}
+
+/* Now the generic Linux version. */
+#undef __sysconf
+#define __sysconf static linux_sysconf
+#include