[glibc] Documentation for the RISC-V 32-bit port

[Alistair Francis <alistair23@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=389f6854eb43d892cca69f8b3bfaf813e0516127

commit 389f6854eb43d892cca69f8b3bfaf813e0516127
Author: Alistair Francis <alistair.francis@wdc.com>
Date:   Tue Jul 14 06:29:56 2020 -0700

    Documentation for the RISC-V 32-bit port
    
    There is already RISC-V 64-bit port information in the documentation.
    Let's add some documentation entries for the RISC-V 32-bit as well.
    
    Reviewed-by: Maciej W. Rozycki <macro@wdc.com>

Diff:
---
 NEWS   | 11 ++++++++++-
 README |  1 +
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/NEWS b/NEWS
index 2937adc3f3..06e43e0453 100644
--- a/NEWS
+++ b/NEWS
@@ -9,7 +9,16 @@ Version 2.33
 
 Major new features:
 
-  [Add new features here]
+
+* Support for the RISC-V ISA running on Linux has been expanded to run on
+  32-bit hardware.  This is supported for the following ISA and ABI pairs:
+
+    - rv32imac ilp32
+    - rv32imafdc ilp32
+    - rv32imafdc ilp32d
+
+  The 32-bit RISC-V port requires at least Linux 5.4, GCC 7.1 and binutils
+  2.28.
 
 Deprecated and removed features, and other changes affecting compatibility:
 
diff --git a/README b/README
index 903f07e484..d0f0edb393 100644
--- a/README
+++ b/README
@@ -39,6 +39,7 @@ The GNU C Library supports these configurations for using Linux kernels:
 	powerpc64*-*-linux-gnu	Big-endian and little-endian.
 	s390-*-linux-gnu
 	s390x-*-linux-gnu
+	riscv32-*-linux-gnu
 	riscv64-*-linux-gnu
 	sh[34]-*-linux-gnu
 	sparc*-*-linux-gnu