Update toolchain to release 20220210-1 with bitmanip support

This release updates the meson cross files to make the toolchains more
easily configurable. The tool versions for the bitmanip variant are:

- Binutils 2.35
- GCC: 10.2.0
- Clang/LLVM: 13.0.1
- GDB 11.1

- Binutils: `7c9dd840fbb6a1171a51feb08afb859288615137`
  (riscv-binutils-2.35-rvb) with Pirmin's bitmanip 1.00+0.93 PR patch
  (riscvarchive/riscv-binutils-gdb#267).
- GCC: `73055647d33c0b63a3125c372019d1dac0f8ac34` (RISC-V bitmanip fork,
  branch riscv-gcc-10.2.0-rvb, commit 73055647d33 from 2021-07-09)
- Clang/LLVM: 13.0.1
- GDB 11.1

Signed-off-by: Luís Marques <[email protected]>

azure-pipelines.yml

@@ -16,7 +16,7 @@ variables:
   VERIBLE_VERSION: v0.0-1213-g9e5c085
   RUST_VERSION: 1.55.0
   # Release tag from https://github.com/lowRISC/lowrisc-toolchains/releases
-  TOOLCHAIN_VERSION: 20210412-1
+  TOOLCHAIN_VERSION: 20220210-1
   # This controls where builds happen, and gets picked up by build_consts.sh.
   BUILD_ROOT: $(Build.ArtifactStagingDirectory)
   VIVADO_VERSION: "2020.2"

doc/ug/install_instructions/index.md

@@ -154,9 +154,9 @@ $ pip3 install --user -r python-requirements.txt
 
 ## Software development
 
-### Device compiler toolchain (RV32IMC)
+### Device compiler toolchain
 
-To build device software you need a baremetal RV32IMC compiler toolchain.
+To build device software you need a baremetal RISC-V compiler toolchain.
 We recommend using a prebuilt toolchain provided by lowRISC.
 Alternatively, you can build your own.
 Whichever option you choose, we recommend installing the toolchain to `/tools/riscv`.

util/container/Dockerfile

@@ -10,7 +10,7 @@ ARG VERILATOR_VERSION=4.210
 ARG OPENOCD_VERSION=0.11.0
 ARG VERIBLE_VERSION=v0.0-1213-g9e5c085
 # The RISCV toolchain version should match the release tag used in GitHub.
-ARG RISCV_TOOLCHAIN_TAR_VERSION=20210412-1
+ARG RISCV_TOOLCHAIN_TAR_VERSION=20220210-1
 ARG RUST_VERSION=1.55.0
 
 # Main container image.

util/get-toolchain.py

@@ -19,8 +19,8 @@
 # the keys in this dictionary specify valid toolchain kinds
 ASSET_PREFIXES = {
     # kind : prefix,
-    "combined": "lowrisc-toolchain-rv32imc-",
-    "gcc-only": "lowrisc-toolchain-gcc-rv32imc-",
+    "combined": "lowrisc-toolchain-rv32imcb-",
+    "gcc-only": "lowrisc-toolchain-gcc-rv32imcb-",
 }
 ASSET_SUFFIX = ".tar.xz"
 RELEASES_URL_BASE = 'https://api.github.com/repos/lowRISC/lowrisc-toolchains/releases'