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 --git a/NEWS b/NEWS
index 2937adc3f37efbf99f52c9424efe5ed9a6dc0a36..06e43e0453167ae07b70c83705cff975e27da1bf 100644 (file)
--- 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 903f07e4840affada7e3bbdb5fcf4f5a66860ac2..d0f0edb3930a76ff1d1cac8026a23b125406d2d2 100644 (file)
--- 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