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nanoMIPS-2021.02-01
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MTK Logo    nanoMIPS GNU toolchain v2021.02-01

        Published on February 28, 2021

Introduction

The nanoMIPS Toolchain includes example code, source code, and documentation to facilitate development of bare metal applications on nanoMIPS simulators and development boards. These toolchains provide compilers, linkers, libraries and utilities for building applications to run on nanoMIPS cores.

Component Description

  • GCC Bare Metal Toolchain
       This is a software engineer's cross-development system for nanoMIPS processors, intended for statically linked embedded applications running on bare metal CPUs or light-weight operating systems.
  • GCC Linux (MUSL) Toolchain
       For compiling Linux applications for Linux running on nanoMIPS cores.

Release Notes

New Features

  • Add support for the -mfunc-opt-list command-line option to control optimizations on a per-function basis

  • Allow linking against version of libstdc++.a built with -fno-rtti and -fno-exceptions with the link-time command-line option -nortti-libstdc++.

Bug Fixes

  • Fix bad code generation from movep optimization under certain conditions. Option -mno-movep-follow-copy-chains can be used to disable this part of the optimization, if the issue persists.

Other Changes

  • Change newlib's internal _dtoa_r implementation to return a newly malloc'd string, instead
    of reusing a static one. Callers of _dtoa_r are now expected to free the resulting string.
    This enables the printf family of functions to safely format floating-point values in a
    multi-threaded context, but is otherwise transparent to users.

Known issues

  • None

Documentation

Note These are external links to docunments by MIPS Tech/Wave Computing.

Component Versions

Component Based on upstream version
binutils 2.28
GCC 6.3.0
musl 1.1.16
newlib 2.5.0
GDB 8.0
QEMU 2.5.0
gold 2.30
smallClib Internal
Python 2.7.16

Downloads

Prebuilt Binaries

Variant Size Checksum
Bare Metal Toolchain
Linux x86 (.tar.gz) [120M] md5: 2af105592f8adb3eeaecb74ade36f99f
sha256: 6c709eadbc8cd9d9856a4c078cf8c710cb939e9733b14d3d5867dffbc9f07c1a
Windows x86 (.tar.gz) [90M] md5: 6b0851c1dd1bab202bafd5c60ddb295f
sha256: a05be8c273f149665c612a315608277dcbb8a8b7cd800128855d52697d4475f7
Linux x64 (.tar.gz) [118M] md5: 166a2305d95bb69addae892e08da622a
sha256: 932efb4c6c9d88abd6cc9ce9c8c3f2cd1dd927d374806dfad4059f7ab714a5e0
Windows 64 (.tar.gz) [93M] md5: 60957161a23814911858a97d80791efa
sha256: e1abc1e69ed9e9f494285d78c9904d921d0ca86523c3a5529ad6c4a3bda29bc5
MUSL/Linux Toolchain
Linux x86 (.tar.gz) [130M] md5: 6ee2c44a29ea3236779e74eef4b43a02
sha256: 3e53f14b3948c66ea0e8c92bdc173110c56e782c42ba4fce9bb3d9c8b29297f9
Windows x86 (.tar.gz) [106M] md5: 1f20bb8172077539a74407783fc5d262
sha256: 8c1d2a53d8a5f3ff48432fd70448f58008bdda5900d78cf0459e4c54a85b40c5
Linux x64 (.tar.gz) [129M] md5: 99b68ac4c752e0ae22a3fbb0873dcb23
sha256: ffcd71b8cfaaee5b733e5df5aade9d0a0fe218e91141fe3fa4bf13aaf232a8c7
Windows 64 (.tar.gz) [109M] md5: c04c67697a3056e720249857ff897a15
sha256: 4c899e51cff0745b1816e10c484b6e912e1cbce379e0f0c666dd1027bfcc1fa3

Source Components

Component Size Checksum
binutils-2021.02-01.src.tar.gz [51M] md5: ae790db7774fa3e72f2e1f8bd3460ffc
sha256: ea9b79c1805c5051f0930f4db1cd07b9110d0e1fb7134b18c4a6e538656eba31
gdb-2021.02-01.src.tar.gz [51M] md5: 80d4a3fc2ae08f79b6766f634dab0075
sha256: 76ff22b40edb1af4784873e4086024524d19fc2e43469ed86e86c818a611dd8a
gold-2021.02-01.src.tar.gz [52M] md5: f4d6f06b3a5c20295e0ba2edf2afd657
sha256: 8c8e82483e94d3c66e22e0fc374b382012f4dc08653d3633579baac9e6444367
newlib-2021.02-01.src.tar.gz [19M] md5: dc301904c3bc076005fc957f5673973e
sha256: 9b07de4057feaefc54b31ce4e51d1b9de591e81cf2e5027b31967a211bf1d22e
gcc-2021.02-01.src.tar.gz [112M] md5: 86d17056a121f86dbc96c77b56691081
sha256: af4cd85e78c510933634eb467935915642a31ce0bfc4a4f2759cb02087387cd5
smallclib-2021.02-01.src.tar.gz [1M] md5: 9d8702b0f555c765b8ad8efbdce6bd5c
sha256: c208fb2ef73236a1ea98ca67c841aab3e49a24f4f88737ba250c928d262e25af
qemu-2021.02-01.src.tar.gz [11M] md5: 765b363a59f1f0916867255bb4175579
sha256: dc49020e8b4478b56cf6684f5592445c977c6d2095c9f64b701e80a6ac9964ea
musl-2021.02-01.src.tar.gz [1M] md5: 5e55bbd96ea9ade07034a578801703bc
sha256: 20a285c7847733c0307f934023e88d2338c7b128323edd5504adf498360fed4d
packages-2021.02-01.src.tar.gz [189M] md5: f9745361e2f43928be331b05908dc096
sha256: ff4965902171ed3cd610d2430c72f0c2b3d2de863b1261d273fd7a751432c61f
python-2021.02-01.src.tar.gz [16M] md5: 3e9bff136d487bab41fa77d077c6b426
sha256: a2ea83c3bbba276212c034ac931e29df3d567fdbd7455c1e26388fa44e1db3b8

Bug Reporting

Report bugs for MediaTek's nanoMIPS GNU toolchain, here.

For reporting issues that are not target-specific, please see instructions provided within the source files of the concerned component.

License Agreements

License Categories

The components included in this toolchain fall under multiple license agreements:

  • GPL v2 - QEMU, Linux
  • GPL v3.1 - GNU toolchain, gdb, gmp, mpfr, libiconv
  • LGPL v3 - mpc
  • MIT / BSD style Licenses - Newlib, smallclib, tinyclib, libgloss/MIPS HAL, musl-libc, libffi, expat, ncurses
  • zlib - zlib-libpng license
  • PSFL v2 - python

To refer to the complete license text for any component, check the corresponding sources above.

Disclaimer of Warranties and Limitation of Liability

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

TO THE FULLEST EXTENT ALLOWED AND PERMITTED BY APPLICABLE LAWS AND REGULATIONS, MEDIATEK SHALL NOT, UNDER ANY CIRCUMSTANCES, BE LIABLE TO YOU OR ANY THIRD PARTY THROUGH YOU FOR PERSONAL INJURY OR ANY CONSEQUENTIAL, EXEMPLARY, INCIDENTAL, INDIRECT, PUNITIVE OR SPECIAL DAMAGES WHATSOEVER, INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, LOSS OF DATA, BUSINESS INTERRUPTION OR ANY OTHER COMMERCIAL DAMAGES OR LOSSES, ARISING OUT OF OR IN RELATION TO THIS AGREEMENT, YOUR USE OF THE Software Package and DOCUMENTATION, OR YOUR DEVELOPMENT OF APPLICATIONS, WHETHER BASED ON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF MEDIATEK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

License Agreements

GPL v3.1

The source code is distributed under the GNU General Public License version 3,
with the addition under section 7 of an exception described in the "GCC
Runtime Library Exception, version 3.1" as follows (or see the file
COPYING.RUNTIME):

GCC RUNTIME LIBRARY EXCEPTION

Version 3.1, 31 March 2009

Copyright (C) 2009 Free Software Foundation, Inc.

Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.

This GCC Runtime Library Exception ("Exception") is an additional
permission under section 7 of the GNU General Public License, version
3 ("GPLv3"). It applies to a given file (the "Runtime Library") that
bears a notice placed by the copyright holder of the file stating that
the file is governed by GPLv3 along with this Exception.

When you use GCC to compile a program, GCC may combine portions of
certain GCC header files and runtime libraries with the compiled
program. The purpose of this Exception is to allow compilation of
non-GPL (including proprietary) programs to use, in this way, the
header files and runtime libraries covered by this Exception.

  1. Definitions.

A file is an "Independent Module" if it either requires the Runtime
Library for execution after a Compilation Process, or makes use of an
interface provided by the Runtime Library, but is not otherwise based
on the Runtime Library.

"GCC" means a version of the GNU Compiler Collection, with or without
modifications, governed by version 3 (or a specified later version) of
the GNU General Public License (GPL) with the option of using any
subsequent versions published by the FSF.

"GPL-compatible Software" is software whose conditions of propagation,
modification and use would permit combination with GCC in accord with
the license of GCC.

"Target Code" refers to output from any compiler for a real or virtual
target processor architecture, in executable form or suitable for
input to an assembler, loader, linker and/or execution
phase. Notwithstanding that, Target Code does not include data in any
format that is used as a compiler intermediate representation, or used
for producing a compiler intermediate representation.

The "Compilation Process" transforms code entirely represented in
non-intermediate languages designed for human-written code, and/or in
Java Virtual Machine byte code, into Target Code. Thus, for example,
use of source code generators and preprocessors need not be considered
part of the Compilation Process, since the Compilation Process can be
understood as starting with the output of the generators or
preprocessors.

A Compilation Process is "Eligible" if it is done using GCC, alone or
with other GPL-compatible software, or if it is done without using any
work based on GCC. For example, using non-GPL-compatible Software to
optimize any GCC intermediate representations would not qualify as an
Eligible Compilation Process.

  1. Grant of Additional Permission.

You have permission to propagate a work of Target Code formed by
combining the Runtime Library with Independent Modules, even if such
propagation would otherwise violate the terms of GPLv3, provided that
all Target Code was generated by Eligible Compilation Processes. You
may then convey such a combination under terms of your choice,
consistent with the licensing of the Independent Modules.

  1. No Weakening of GCC Copyleft.

The availability of this Exception does not imply any general
presumption that third-party software is unaffected by the copyleft
requirements of the license of GCC.

NewLib, SmallClib,TinyClib and Musl

These libraries are licensed under a collection of code, copyright held by multiple
contributors and distributed under an umbrella of permissive MIT and BSD-like free
licenses. The complete license text is provided in the binary distribution
under [Toolchain_Root]/share/copying
COPYING.NEWLIB
COPYING.MUSL
COPYING.CLIB

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