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Carles Fernandez 2020-07-07 21:19:35 +02:00
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@ -8,29 +8,37 @@ SPDX-FileCopyrightText: 2011-2020 Carles Fernandez-Prades <carles.fernandez@cttc
)
<!-- prettier-ignore-end -->
## Unreleased
## [Unreleased](https://github.com/gnss-sdr/gnss-sdr/tree/next)
### Improvements in Efficiency:
- Faster internal handling of `Gnss_Synchro` objects by reducing the amount of
copying via adding `noexcept` move constructor and move assignment operators,
so the move semantics are also used in STL containers.
- All `std::endl` have been replaced by the `'\n'` character, since there is no
need to always flush the stream.
- Performed a stack reordering of class members that seems to offer
statistically better performance in some processor architectures and/or
compilers.
- Add building option `ENABLE_STRIP` to generate stripped binaries (that is,
without debugging symbols), smaller in size and potentially providing better
performance than non-stripped counterparts. Only for GCC in Release build
mode. Set to `OFF` by default.
- Add building option `ENABLE_BENCHMARKS`, which activates the building of
benchmarks for some code snippets, making it easier to developers to benchmark
different implementations for the same purpose. Set to `OFF` by default.
### Improvements in Maintainability:
- The software can now be built against the GNU Radio 3.9 API that uses C++11
smart pointers instead of Boost smart pointers.
- The software can now be built against Boost <= 1.73 (minimum version: 1.53).
- Removed python six module as a dependency if using Python 3.x.
- Improved usage of smart pointers to better express ownership.
- Add definition of std::make_unique for buildings with C++11, and make use of
- Improved usage of smart pointers to better express ownership of resources.
- Add definition of `std::make_unique` for buildings with C++11, and make use of
it along the source code.
- Private members in headers have been sorted by type and size, minimizing
padding space in the stack and making the files more readable for humans.
- The software can now be built against the GNU Radio 3.9 API that uses standard
library's smart pointers instead of Boost's. Minimum GNU Radio required
version still remains at 3.7.3.
- The software can now be built against Boost <= 1.73 (minimum version: 1.53).
- Fixed building with GCC 10 (gcc-10 and above flipped a default from `-fcommon`
to `-fno-common`, causing an error due to multiple defined lambda functions).
- Fixed warnings risen by GCC 10 and Clang 10.
@ -39,12 +47,11 @@ SPDX-FileCopyrightText: 2011-2020 Carles Fernandez-Prades <carles.fernandez@cttc
requirements, with more intuitive naming for variables; fixed the
`ENABLE_CLANG_TIDY` option; better GFORTRAN module; and broader adoption of
the modern per-target approach.
- Add a new building option `ENABLE_BENCHMARKS` which activates the building of
benchmarks for some code snippets.
### Improvements in Portability:
- The software can now be cross-compiled on Petalinux environments.
- Removed python six module as a dependency if using Python 3.x.
- Make use of `std::span` if the compiler supports it, and use gsl-lite as a
fallback. The latter has been updated to version
[0.37.0](https://github.com/gsl-lite/gsl-lite/releases/tag/0.37.0).
@ -76,21 +83,24 @@ SPDX-FileCopyrightText: 2011-2020 Carles Fernandez-Prades <carles.fernandez@cttc
generated binaries is maintained if the building is done from any source tree
subfolder (for instance, `gnss-sdr/build`): in that case, binaries are stored
in the source tree (under `gnss-sdr/install`).
- Updated version of the Contributor Covenant to version 2.0.
- Added a Matlab script to quantize the input signal with a given number of bits
per sample.
- Fixed a bug in signal sources that made the number of samples parameter
ignored when too large (that is, larger than 2^31-1).
- Fixed the building option `-DENABLE_LOG=OFF`, which strips internal logging
from the binary and can help to reduce its size and speed up the receiver. In
binaries with enabled logging, it can be still disabled by passing the command
line flag `--minloglevel=3` to `gnss-sdr`.
- Defined new `GNSS-SDR.GPS_banned_prns`, `GNSS-SDR.Galileo_banned_prns`,
`GNSS-SDR.Glonass_banned_prns` and `GNSS-SDR.Beidou_banned_prns` configuration
parameters. The user can specify lists of satellites that will not be
processed (e.g., `GNSS-SDR.Galileo_banned_prns=14,18` since Galileo E14 and
E18 satellites are not usable for PVT). Satellites on those lists will never
be assigned to a processing channel.
- Added a Matlab script to quantize the input signal with a given number of bits
per sample.
- Fixed the building option `-DENABLE_LOG=OFF`, which strips internal logging
from the binary and can help to reduce its size and ultimately to speed up the
receiver. In binaries with enabled logging, it still can be disabled by
passing the command line flag `--minloglevel=3` to `gnss-sdr`. This can be
relevant in embedded devices with scarce storage capabilities.
- Fixed a bug in the Signal Sources configuration that made the number of
samples parameter ignored when too large (that is, when set larger than
2^31-1). Now the `samples` parameter accepts values up to 2^64-1, that is,
18,446,744,073,709,551,615 samples.
- Updated version of the Contributor Covenant to version 2.0.
&nbsp;