Change Log

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Unreleased

v0.3.8 - 2024-05-17

#840: defmt: Support pre-1.77
#839: CI: Fix tests
#838: defmt: Switch to Cargo instruction compatible with older versions of Cargo

defmt-macros v0.3.9

[#835]: macros: Fix some defmt crate name usage

v0.3.7 - 2024-05-13

#831: CI: Fix CI
[#830]: book: Add section about feature-gated derive Format
#828: defmt-decoder: Update to gimli 0.29
#821: Clean up
#813: doc: add note for the alloc feature flag
#812: defmt: Add a feature to stop linking a default panic handler
#811: book: Add some examples for byte slice/array hints as well
#805: defmt: Drop ip_in_core feature and re-enable nightly snapshot tests
#800: defmt-macros: Fix generic trait bounds in Format derive macro

v0.3.6 - 2024-02-05

#804: CI: Remove mdbook strategy
#803: CI: Disable nightly qemu-snapshot tests
#789: defmt: Add support for new time-related display hints
#783: defmt-decoder: Move formatting logic to Formatter

defmt-decoder v0.3.9, defmt-print v0.3.10 - 2023-10-04

#784: defmt-decoder: Prepare defmt-decoder v0.3.9 release
#781: defmt-decoder: Add pub struct Formatter to defmt_decoder::log
#778: defmt-decoder: Add support for nested log formatting
#777: defmt-decoder: Simplify StdoutLogger
#775: defmt-decoder: Ignore AArch64 mapping symbols
#771: defmt-macros: Ignore empty items in DEFMT_LOG
#769: defmt-decoder: Add support for color, style, width and alignment to format

defmt-decoder v0.3.8, defmt-print v0.3.8 - 2023-08-01

#766 decoder::log: Rename PrettyLogger to StdoutLogger
#765: defmt-decoder: Add support for customizable logger formatting

v0.3.5 - 2023-06-19

#760: defmt-macros: Upgrade to syn 2
#759: Release defmt v0.3.5, defmt-macros 0.3.6 and defmt-print 0.3.8
#758: defmt-print: Tidy up
#757: defmt-print: Allow reading from a tcp port
#756: CI: Switch from bors to merge queue
#753: demft Add Format impls for core::ptr::NonNull and fn(Args...) -> Ret (up to 12 arguments)

defmt-decoder v0.3.7, defmt-macros v0.3.5, defmt-parser v0.3.3, defmt-print v0.3.7 - 2023-05-05

#754: Release defmt-decoder v0.3.7, defmt-macros v0.3.5, defmt-parser v0.3.3, defmt-print v0.3.7
#750: Add support for decoding wire format version 3

v0.3.4 - 2023-04-05

#748: Release defmt-v0.3.4, defmt-decoder-v0.3.6, defmt-print-v0.3.4 and yank previous
#747: Bump wire version

v0.3.3 - 2023-03-29 (yanked)

#745: Release defmt-v0.3.3, defmt-decoder-v0.3.5, defmt-macros v0.3.4, defmt-parser v0.3.2, defmt-print v0.3.5 and panic-probe v0.3.1
#744: defmt-parser: Clean and simplify
#742: defmt-decoder: Include crate name in symbol name
#743: defmt-parser: Simplify tests with rstest
#741: defmt-macros: Disable default-features for rstest
#740: Snapshot tests for core::net
#739: xtask: Clean up
#737: panic-probe: Add hard_fault() for use in defmt::panic_handler
#733: defmt: Add formatting for core::net with the ip_in_core feature
#603: defmt: Raw pointers now print as 0x1234 instead of 1234
#536: defmt-parser: Switch to using an enum for errors, and add some help text pointing you to the defmt docs if you use the wrong type specifier in a format string.

defmt-decoder v0.3.4, defmt-print v0.3.4

#729: Release defmt-decoder v0.3.4, defmt-print v0.3.4
#726: defmt-decoder: Remove difference in favor of dissimilar
#725: defmt-decoder: Replace chrono with time
#719: defmt-print: Fix panic
#715: xtask: Update clap to version 4
#710: CI: Update CI
#706: defmt, defmt-decoder, defmt-itm, defmt-macros, defmt-parser, defmt-print, defmt-test-macros: Satisfy clippy

defmt-decoder v0.3.3, defmt-macros v0.3.3, defmt-print v0.3.3, vdefmt-rtt 0.4.0

#704: Release defmt-macros 0.3.3, defmt-print 0.3.3, defmt-rtt 0.4.0
#703: defmt-print: Update to clap 4.0.
#701: defmt-rtt: Pre-relase cleanup
#695: defmt-rtt: Refactor rtt [3/2]
[#689]: defmt-rtt: Update to critical-section 1.0
#692: defmt-macros: Wrap const fn in const item to ensure compile-time-evaluation.
#690: defmt-decoder, defmt-parser: Satisfy clippy
#688: Release defmt-decoder 0.3.3
#687: CI: Re-enable qemu-snapshot (nightly) tests
#686: CI: Temporarily disable qemu-snapshot (nightly)
#684: defmt-macros: Fix syn dependency version.
#683: defmt-rtt: Make sure the whole RTT structure is in RAM
#682: defmt-print: exit when stdin is closed
#681: defmt-decoder, defmt-parser:Make use of i/o locking being static since rust 1.61.
#679: CI: Add changelog enforcer
#678: defmt, defmt-decoder, defmt-macros, defmt-parser: Satisfy clippy

v0.3.2 - 2022-05-31

[#675]: Release defmt 0.3.2 and fix defmt-macros-releated compile-error
[#669]: Refine docs for --json flag

v0.3.1 - 2022-03-10

Added

#662: #[derive(Format)] now accepts attribute fields to format fields using the Debug2Format adapter instead of a Format implementation.
#661: Add tests for Cell types
#656: Implement defmt::Format for Cell and RefCell
#630: Add test instructions to README.md

Changed

#659: mark extern::acquire() and extern::release() as unsafe. this is not a breaking change; this is an internal API
#640: use crate critical-section in defmt-rtt
#634: update ELF parsing dependencies
#633: make RTT buffer size configurable
#626: Make errror message more meaningful in case of version-mismatch

v0.3.0 - 2021-11-09

#618: Support #[ignore] attribute in defmt_test
#621: Readme Diagram: Replace duplicate defmt-itm with defmt-rtt
#617: Add display hint to output u64 as ISO8601 time
#620: Tidy up: remove unused code and dependencies
#619: Update all crates to rust edition 2021! 🎉
#610: defmt-print: Log if malformed frame gets skipped
#547: Migration guide v0.2.x to v0.3.0
#604: defmt-test: #[cfg(test)] the #[defmt_test::tests] module
#616: Update user guide part of the book
#615: Document how to deal with backward compatibility breakage
#614: Bugfix: decoder breaks with pipe symbol
#605: Properly handle the off pseudo-level in presence of nested logging directives
#611: Fix cargo doc-warnings
#608: decoder: Fix that defmt::println! shows leading space when timestamps are disabled
#601: Move crate defmt to defmt/
#600: Run snapshot & backcompat tests in dev mode only
#519: Target-side env_logger-like env filter
#592: xtask: add backward compability test
#598: defmt-print: Recover from decoding-errors
#569: Add defmt println! macro
#580: Structure defmt::export
#594: panic-probe: use UDF instruction on nested panics
#591: Remove timestamps from snapshot test
#585: Add xtask option to run a single snapshot test by name
#589: Implement Format for arrays of any length
#587: Tweak inline attributes to remove machine code duplication
#574: Refactor rtt [1/2]
#584: Remove outdated doc "you may only call write! once"
#582: Release of panic-probe v0.2.1
#581: Add impl for alloc::Layout
#579: defmt-rtt: fix check for blocking RTT
#577: Fix typo in cfg of encoding-feature-compile_error!
#578: qemu: Allow dead code
#572: defmt-decoder: impl TryFrom<Option<String>> for Encoding
#570: Support referring to Self in bitflags constants
#568: Encoding docs.
#564: Make order of bitflags values deterministic
#561: Remove unused cortex-m-rt in panic-probe a=Dirbaio
#562: Remove call to fill in user survey from README
#560: Update cortex-m-rt crate from 0.6 to 0.7
#557: Add impl for TryFromSliceError
#556: Add impl for TryFromIntError
#551: Display git version & date to introduction section
#540: Separate "crate version" from "wire format version
#549: Fix clippy warnings.
#539: Add optional rzCOBS encoding+framing
#518: build.rs: Obtain version from macro; simplify
#543: CI: Temporarily drop backward-compatibility check
#542: snapshot-tests: Test alternate hint for bitfields
#538: Fix wrong bit count in comment.
#537: snapshot-tests: Delete :? hint without impact
#531: refactor the macros crate
#534: Attribute test progress message to the test in question;
#535: Don't print leading space when timestamp is absent
#529: Refactor user-guide of book
#528: Support bitflags
#533: Adds add for user survey into readme.
#527: book: Add logo and support text to introduction
#526: decoder: Simplify tests
#359: Implement precedence of inner display hint
#523: Minimize dependencies
#508: [5/n] Format trait v2
#522: Replace µs hint with us
#521: [3/n] Remove u24
#516: xtask: Only install additional targets for tests that require them
#512: Add overwrite option for xtask cross results.
#514: extend raw pointer implementation to include !Format types
#513: book/duplicates.md: discriminator -> disambiguator
#507: [2/n] - Remove code-size-costly optimizations
#505: [1/n] - Logger trait v2.

v0.2.3 - 2021-06-17

Added

#499 Illustrate structure of the defmt crates
#503 Add alternate hint ('#')
#509 impl Format for NonZero*

Changed

#488 Structure impl Formats into multiple files
#496 Bump build-dep semver to 1.0
#489 Structure lib
#500 book: fix leftover old formatting syntax; typos
#510 CI: Don't install MacOS dependency which is included by default

Fixed

#497 macros: match unused vars if logging is disabled

v0.2.2 - 2021-05-20

Added

#446 Add usage examples for Debug2Format, Display2Format
#464 impl<T> Format for {*const, *mut} T where T: Format + ?Sized
#472 impl Format for the core::{iter, ops, slice} structs
#473 impl Format for all the Cows
#478 add dbg! macro

Changed

#477 Disable logging calls via conditional compilation when all defmt features are disabled

v0.2.1 - 2021-03-08

Added

#403 Add knurling logo to API docs

Fixed

#413 Fix docs-rs build, by disabling feature "unstable-test"
#427 Drop outdated note about defmt v0.2.0 from book

v0.2.0 - 2021-02-19

Added

#284 Implement support for i128 and u128 types
#291 Allows using defmt on x86 platforms by making the test suite use an internal Cargo feature
#293 Make defmt attributes forward input attributes
#294 Permits use items inside #[defmt_test::tests] modules
#296 Allows skipping the defmt version check in order to make development easier
#302 derive(Format) now supports more than 256 variants
#304 impl Format for chars
#313 Add display hints
#323 Merge Uxx(u64) (Ixx(i64)) and U128(u128) (u128(i128)) data variants
#327 impl<T> Format for PhantomData<T>
#329 Document safety of implementation detail functions
#335 Add the defmt-itm crate
#338 Add defmt-logger and defmt-print crates
#343 Customizable timestamps
#347 Document the grammar of defmts current format parameter syntax
#351 Allow tools to distinguish user-controlled format strings from generated ones
#354 Add f64 support
#376 Make defmt-logger more configurable, remove probe-run strings
#377 defmt-test: support returning Result from tests
#382 impl Format for Infallible
#391 impl Format for core::time::Duration

Changed

#297 Improves the output formatting and includes a progress indicator
#299 Test embedded test runner (defmt-test) as part of our CI setup
#300 #[derive] now uses built-in primitive formatting for primitive references
#303 Employ the help of [bors]
#305 Formatter is now passed by value, i.e. consumed during formatting
#308 compile-fail test new Formatter move semantics
#312 str fields in structs are now treated as a native type by the encoder instead of going through the Format trait
#325 Update our UI tests to work with the latest stable release
#331 Add more compile-fail tests
#332 Improve Format trait docs
#333 Hide Formatter's inner field
#334 Fix dead link in parser docs
#337 Improve diagnostics on double write!
#339 Make leb64 encoding fully safe (while at the same time reducing its code footprint)
#340 Stream core::fmt adapters
#345 Reduce code size by avoiding 64-bit arithmetic in LEB encoding
#350 panic-probe now uses defmts Display2Format to log panic messages. In consequence, panic messages won't get truncated anymore.
#355 Clarify the docs on Write::write
#352 Do not display full version with --help. Thanks to [Javier-varez]!
#354 Support f64 floating point numbers.
#355 Clarify docs on Write::write.
#361, [#367] Make clippy happy by improving code quality
#363 Improve test coverage on basic defmt usage on std rust
#364 Split firmware code into separate workspace
#368 defmt-itm: Raise compile error on armv6m
#369 Move bors.toml to .github/
#371 Link to git version of defmt book
#372 Update Printers section in defmt book
#373 Improve information in Cargo.toml
#379 Make link to defmt book clickable
#380 Merge crates elf2table and logger into decoder
#383 defmt-test: Modify attributes in place and handle #[cfg]
#384 pin unstable path dependencies
#385 defmt_decoder: Skip allocation of datastructure for raw symbols of the table entries in fn get_locations
#386, #392 Refactor decoder
- rename mod logger to log
- make fn parse_*, fn get_locations, fn decode methods of struct Table
- various simplifications and restructuring of internal code
#387 CI: bump timeout to 20 minutes
#389 defmt_decoder: Bump deps object and gimli

Fixed

#301 Fix the nightly builds after a linked_list_allocator feature change
#310, #311 remove the runtime check (and matching tests) if the write! macro was called multiple times as this can no longer happen since write! now consumes the Formatter due to #305.
#321 ASCII hint (:a) is now respected when used together with the Format trait (=? and =[?]).
#342 Fix a data corruption issue when using bools in write!
#357 Fix issue preventing defmt from compiling on MacOS.

v0.1.3 - 2020-11-30

Fixed

#290 fixed cross compilation to ARMv6-M and other targets that have no CAS (Compare-and-Swap) primitives when the "alloc" feature is enabled

v0.1.2 - 2020-11-26

Added

#263 #276 add and document write! macro
#273 #280 add and document unwrap! macro
#266 add panic!-like and assert!-like macros which will log the panic message using defmt and then call core::panic! (by default)
#267, #281 add Debug2Format and Display2Format adapters
#279 started adding notes about feature availability (e.g. "defmt 0.1.2 and up")

Changed

#257 code size optimizations
#265 updated the 'how we deal with duplicated format strings' section of our implementation notes

Fixed

#264 probe-run doesn't panic if log message is not UTF-8
#269 fixes compiler error that was thrown when using defmt::panic within e.g. a match expression
#272 braces in format args passed to the new defmt::panic! and defmt::assert! macros do not cause unexpected errors anymore

v0.1.1 - 2020-11-16

Fixed

#259 crates.io version of defmt crates no longer require git to be built

v0.1.0 - 2020-11-11

Initial release

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Change Log

Unreleased

v0.3.8 - 2024-05-17

defmt-macros v0.3.9

v0.3.7 - 2024-05-13

v0.3.6 - 2024-02-05

defmt-decoder v0.3.9, defmt-print v0.3.10 - 2023-10-04

defmt-decoder v0.3.8, defmt-print v0.3.8 - 2023-08-01

v0.3.5 - 2023-06-19

defmt-decoder v0.3.7, defmt-macros v0.3.5, defmt-parser v0.3.3, defmt-print v0.3.7 - 2023-05-05

v0.3.4 - 2023-04-05

v0.3.3 - 2023-03-29 (yanked)

defmt-decoder v0.3.4, defmt-print v0.3.4

defmt-decoder v0.3.3, defmt-macros v0.3.3, defmt-print v0.3.3, vdefmt-rtt 0.4.0

v0.3.2 - 2022-05-31

v0.3.1 - 2022-03-10

Added

Changed

v0.3.0 - 2021-11-09

v0.2.3 - 2021-06-17

Added

Changed

Fixed

v0.2.2 - 2021-05-20

Added

Changed

v0.2.1 - 2021-03-08

Added

Fixed

v0.2.0 - 2021-02-19

Added

Changed

Fixed

v0.1.3 - 2020-11-30

Fixed

v0.1.2 - 2020-11-26

Added

Changed

Fixed

v0.1.1 - 2020-11-16

Fixed

v0.1.0 - 2020-11-11