Releases: chettrick/discobsd
DiscoBSD 2.3 released: August 11, 2024
--- DiscoBSD 2.3 RELEASED ---
DiscoBSD 2.3 Released
August 11, 2024
DiscoBSD 2.3 is released.
This is the fourth official release of DiscoBSD, the multi-platform
2.11BSD-based Unix-like operating system for microcontrollers.
DiscoBSD 2.3 offers ports to two different microcontroller platforms:
- DiscoBSD/stm32 - STM32F4 family of 32-bit Arm Cortex-M4
microcontrollers from STMicroelectronics - DiscoBSD/pic32 - PIC32MX7 family of 32-bit MIPS32 M4K
microcontrollers from Microchip
DiscoBSD/stm32, unique only to DiscoBSD, offers a familiar BSD
environment on the many available STM32F4 development boards.
DiscoBSD/pic32, inherited from RetroBSD, offers a familiar BSD
environment on the many available PIC32MX7 development boards,
as well as full use with the included VirtualMIPS PIC32 simulator.
A nearly-complete development environment is included in DiscoBSD.
There are: various text editors and compilers, a MIPS assembler and
MIPS linker, and many more programming languages in addition to C
and asm, such as Scheme, BASIC, Forth, RetroForth, lex, yacc, and TCL.
Examples are provided in the file system at /usr/share/examples.
As a descendant of 2.11BSD, DiscoBSD inherits its strong BSD heritage.
The userland is powerful, full-featured, and comfortable to competent
UNIX users, as it is derived from the rich 4.3BSD-Tahoe userland, modern
implementations of classic utilities, and improvements along the way.
Install, build, and debug instructions can be found in the README files.
Significant Changes and Improvements
New Features in this Release
- Make targets for distribution and release.
- Support for the WeAct Studio STM32F412RET6 Core board.
- Support for the WeAct Studio STM32F405RGT6 Core board.
- Imported the LL Cortex driver from STM32CubeF4.
- Imported strlcpy(3), strlcat(3), basename(3), and dirname(3).
Filesystem
- Cleanup of C include headers.
- Added libgen.h C include header for strlcpy(3), strlcat(3).
Build System
Continuing the overhaul of the source tree and build system.
- Both BSD make and GNU make are fully supported.
- FreeBSD's version of make requires MAKESYSPATH set.
- OSRev variable in share/mk/sys.mk for release naming.
- RELEASEDIR variable is default distrib/obj/releasedir.
- Release tar and zip archives generated in RELEASEDIR.
- Linux uses libbsd-dev and pkg-config variables in tools.
Kernel
- Import sys/syslimits.h header from OpenBSD.
- Define PATH_MAX, to eventually replace MAXPATHLEN.
DiscoBSD/stm32 Specific Improvements
- Add optional SDIO_XFER_CLK_DIV Config for SDIO clock.
- Explicit IDs and chip revisions in cpuidentify().
- Support for WeAct Studio STM32F412RET6 Core board.
- Support for WeAct Studio STM32F405RGT6 Core board.
DiscoBSD/pic32 Specific Improvements
- VirtualMIPS SD card size increased to 512MB.
Bugfixes and Corrections
- Normalize formatting of .TH dates in man(7) manuals.
- Clean up all DOS line endings with Unix line endings.
- Many strcpy(3) -> strlcpy(3), strcat(3) -> strlcat(3), and
sprintf(3) -> snprintf(3) conversions. - Steady improvements and corrections in documentation.
- Steady improvements and corrections in libraries.
- Manual page fixes and improvements.
Host Development Environment
While DiscoBSD is primarily developed and tested on OpenBSD,
Linux and FreeBSD are also supported as host environments.
These host development environments have been tested:
OpenBSD 7.3
- Host compiler Clang 13.0.0
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 7.4.1
- DiscoBSD/pic32
- Custom port of mips-elf-gcc 4.8.1
OpenBSD 6.8
- Host compiler GCC 4.2.1
- Host compiler GCC 8.4.0
- Host compiler Clang 10.0.1
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 7.4.1
- DiscoBSD/pic32
- Custom port of mips-elf-gcc 4.8.1
Ubuntu 23.04
- Host compiler GCC 12.3.0
- Host compiler Clang 15.0.7
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 12.2.1
- arm-none-eabi-gcc 10.3
- DiscoBSD/pic32
- Untested
Ubuntu 18.04
- Host compiler GCC 9.2.1
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 7.3.1
- DiscoBSD/pic32
- Custom compilation of mips-elf-gcc 4.8.1
FreeBSD 13.2
- Host compiler Clang 14.0.5
- BSD make (with MAKESYSPATH set) and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 10.3.1
- DiscoBSD/pic32
- Untested
Developers and Contributors this Release
Full Changelog
Contributors
Assets 7
DiscoBSD 2.2 released: February 29, 2024
--- DiscoBSD 2.2 RELEASED ---
DiscoBSD 2.2 Released
February 29, 2024
DiscoBSD 2.2 is released.
This is the third official release of DiscoBSD, the multi-platform
2.11BSD-based operating system for microcontrollers.
DiscoBSD 2.2 offers ports to two different microcontroller platforms:
- DiscoBSD/stm32 - STM32F4 family of 32-bit Arm Cortex-M4
microcontrollers from STMicroelectronics - DiscoBSD/pic32 - PIC32MX7 family of 32-bit MIPS32 M4K
microcontrollers from Microchip
DiscoBSD/stm32, unique only to DiscoBSD, offers a familiar BSD
environment on the many available STM32F4 development boards.
DiscoBSD/pic32, inherited from RetroBSD, offers a familiar BSD
environment on the many available PIC32MX7 development boards,
as well as full use with the included VirtualMIPS PIC32 simulator.
A nearly-complete development environment is included in DiscoBSD.
There are: various text editors and compilers, a MIPS assembler and
MIPS linker, and many more programming languages in addition to C
and asm, such as Scheme, BASIC, Forth, RetroForth, lex, yacc, and TCL.
Examples are provided in the file system at /usr/share/examples.
As a descendant of 2.11BSD, DiscoBSD inherits the strong BSD heritage.
The userland is powerful, full-featured, and comfortable to competent
UNIX users, as it is derived from the rich 4.3BSD-Tahoe userland, modern
implementations of classic utilities, and improvements along the way.
Install, build, and debug instructions can be found in the README files.
Significant Changes and Improvements
New Features
- Unprivileged builds, with our own version of install(1) in /tools.
- Imported and ported the Plan 9 versions of dc(1), bc(1), and lex(1).
- as(1) can assemble files that include the MIPS .module directive.
Filesystem
- More general cleanup from the file system reorganization.
Build System
Continuing the overhaul of the source tree and build system.
- Both BSD make and GNU make are fully supported.
- FreeBSD's version of make requires MAKESYSPATH set.
- Added machine-specific Makefile.inc files for debugging.
- Manual pages specify DiscoBSD as operating system name.
- Use ${INSTALL} throughout the source tree.
- tools/binstall is OpenBSD install(1), with an implementation of
the -U unprivileged option inspired from NetBSD install(1) . - Use the new tools/binstall for unprivileged builds and installs.
- System build Makefile from target.mk to share/mk/sys.mk.
- OpenBSD-style OSMAJOR, OSMINOR in share/mk/sys.mk.
Kernel
- Proper BSD-style kernel version string, for each architecture.
- KERN_OSTYPE, KERN_OSRELEASE, and KERN_OSVERSION
sysctls updated. E.g., DiscoBSD, 2.2, and F412GDISCO#5. - Kernel versioning unified; driven by /sys/conf/newvers.sh.
- Clean up some ifdefs between architectures for ELF.
- Clean up uname(3) and struct field lengths to 256.
DiscoBSD/stm32 Specific Improvements
- Enable new Plan 9 /usr/bin/lex for DiscoBSD/stm32.
- Add lex examples in /usr/share/examples/lex.
- Use the common /sys/conf/newvers.sh kernel shell script.
- Update to latest NetBSD Arm version of elf_machdep.h.
DiscoBSD/pic32 Specific Improvements
- Use the common /sys/conf/newvers.sh kernel shell script.
- Update to latest NetBSD MIPS version of elf_machdep.h.
- Fix many implicit int warnings.
- Enable -fcommon for MIPS kernel builds.
Bugfixes and Corrections
- Numerous K&R -> ANSI fixes.
- Newer compilers exposed many unsafe structures,
and they were promptly remedied. - Many updates concerning hierarchy changes.
- Steady improvements and corrections in games.
- Steady improvements and corrections in libraries.
- Manual page fixes and improvements.
Host Development Environment
While DiscoBSD is primarily developed and tested on OpenBSD,
Linux and FreeBSD are also supported as host environments.
These host development environments have been tested:
OpenBSD 7.3
- Host compiler Clang 13.0.0
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 7.4.1
- DiscoBSD/pic32
- Custom port of mips-elf-gcc 4.8.1
OpenBSD 6.8
- Host compiler GCC 4.2.1
- Host compiler GCC 8.4.0
- Host compiler Clang 10.0.1
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 7.4.1
- DiscoBSD/pic32
- Custom port of mips-elf-gcc 4.8.1
Ubuntu 23.04
- Host compiler GCC 12.3.0
- Host compiler Clang 15.0.7
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 12.2.1
- arm-none-eabi-gcc 10.3
- DiscoBSD/pic32
- Untested
Ubuntu 18.04
- Host compiler GCC 9.2.1
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 7.3.1
- DiscoBSD/pic32
- Custom compilation of mips-elf-gcc 4.8.1
FreeBSD 13.2
- Host compiler Clang 14.0.5
- BSD make (with MAKESYSPATH set) and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 10.3.1
- DiscoBSD/pic32
- Untested
Developers and Contributors
Full Changelog
DiscoBSD 2.1 released: Aug 31, 2023
--- DiscoBSD 2.1 RELEASED ---
DiscoBSD 2.1 Released
August 31, 2023
DiscoBSD 2.1 is released.
This is the second official release of DiscoBSD, the multi-platform
2.11BSD-based operating system for microcontrollers.
DiscoBSD 2.1 offers ports to two different microcontroller platforms:
- DiscoBSD/stm32 - STM32F4 family of 32-bit Arm Cortex-M4
microcontrollers from STMicroelectronics - DiscoBSD/pic32 - PIC32MX7 family of 32-bit MIPS32 M4K
microcontrollers from Microchip
DiscoBSD/stm32, unique only to DiscoBSD, offers a familiar BSD
environment on the many available STM32F4 development boards.
DiscoBSD/pic32, inherited from RetroBSD, offers a familiar BSD
environment on the many available PIC32MX7 development boards,
as well as full use with the included VirtualMIPS PIC32 simulator.
A nearly-complete development environment is included in DiscoBSD.
There are: various text editors and compilers, a MIPS assembler and
MIPS linker, as well as many more programming languages in addition
to C and asm, such as Scheme, BASIC, Forth, RetroForth, yacc, and TCL.
Examples are provided in the file system at /usr/share/examples.
As a descendant of 2.11BSD, DiscoBSD inherits its strong BSD heritage.
The userland is powerful, full-featured, and comfortable to competent
UNIX users, as it is derived from the rich 4.3BSD-Tahoe userland and
steady improvements along the way.
Install, build, and debug instructions can be found in the README files.
Significant Changes and Improvements
New Features
- libtcl 6.7 available through build system, mainly for tclsh(1).
Filesystem
Major overhaul of DiscoBSD's root filesystem.
The root filesystem is now more in line with a 4.4BSD system
than the 2.9BSD-style system inherited from RetroBSD.
Notable changes are:
- The return of the /usr directory.
- Separation of executables into /bin, /sbin, /usr/bin, /usr/sbin,
/usr/libexec, and /usr/games, based on single user mode needs. - The creation of a user /home directory, on its own filesystem.
- Both the root filesystem and user filesystem are 200 MB each.
Build System
Major overhaul of DiscoBSD's source tree and build system.
- Both BSD make and GNU make are fully supported.
- Non-portable features of GNU make and BSD make are
replaced with portable alternatives. - The source tree follows a more 4.4BSD layout, with each
executable having its own directory in the right hierarchy. - Build objects are now universally installed into ${DESTDIR},
default location is /distrib/obj/destdir.${MACHINE}. - /etc/Makefile target distrib-dirs builds the skeleton
filesystem hierarchy in ${DESTDIR}. - Build tools install into ${TOOLBINDIR}, default location
is the persistent /tools/bin directory. - Build outputs in ${DESTDIR} from different architectures
can co-exist simultaneously. - Added ${HOST_CC} make variable for host compiler.
- tools/aoututils for building a.out system libraries.
- Kernels are now called unix, not unix.elf.
- Consistent CFLAGS, AFLAGS, ASFLAGS, LIBS, LDLIBS.
- Build system with -fcommon in ${CFLAGS}.
- FreeBSD is now a host development environment.
DiscoBSD/stm32 Specific Improvements
- Implemented ARMv7-M fault trap handling.
- Dumps fault stack frame upon fault.
- Add MCU and revision IDs for STM32F407xx.
- Portable Makefiles for kernel builds.
DiscoBSD/pic32 Specific Improvements
- Portable Makefiles for kernel builds.
Bugfixes and Corrections
- Numerous K&R -> ANSI fixes.
- Newer compilers exposed many unsafe structures,
and they were promptly remedied. - Many updates concerning the hierarchy changes.
- Perform ranlib -t to touch libraries after installation.
- Steady improvements and corrections in games.
- Steady improvements and corrections in libraries.
- Manual page fixes and improvements.
Host Development Environment
While DiscoBSD is primarily developed and tested on OpenBSD,
Linux and FreeBSD are also supported as host environments.
These host development environments have been tested:
OpenBSD 7.3
- Host compiler Clang 13.0.0
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 7.4.1
- DiscoBSD/pic32
- Custom port of mips-elf-gcc 4.8.1
OpenBSD 6.8
- Host compiler GCC 4.2.1
- Host compiler GCC 8.4.0
- Host compiler Clang 10.0.1
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 7.4.1
- DiscoBSD/pic32
- Custom port of mips-elf-gcc 4.8.1
Ubuntu 23.04
- Host compiler GCC 12.3.0
- Host compiler Clang 15.0.7
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 12.2.1
- arm-none-eabi-gcc 10.3
- DiscoBSD/pic32
- Untested
Ubuntu 18.04
- Host compiler GCC 9.2.1
- BSD make and GNU make
- DiscoBSD/stm32
- arm-none-eabi-gcc 7.3.1
- DiscoBSD/pic32
- Custom compilation of mips-elf-gcc 4.8.1
FreeBSD 13.2
- Host compiler Clang 14.0.5
- DiscoBSD/stm32
- arm-none-eabi-gcc 10.3.1
- DiscoBSD/pic32
- Untested
Developers and Contributors
DiscoBSD 2.0 released: Dec 31, 2022
--- DiscoBSD 2.0 RELEASED ---
December 31, 2022
DiscoBSD 2.0 is released.
This is the first official release of DiscoBSD, the multi-platform
2.11BSD-based operating system for microcontrollers.
In addition to the PIC32MX7 support in DiscoBSD/pic32 (inherited from
RetroBSD), the release of DiscoBSD 2.0 supports the Arm Cortex-M4-based
STM32F4 family of microcontrollers from STMicroelectronics in the new
DiscoBSD/stm32 port.
DiscoBSD is a descendant of 2.11BSD and inherits its strong BSD heritage.
The userland is powerful, full-featured, and comfortable to any competent
UNIX user, as it is derived from the rich 4.3BSD-Tahoe userland.
Install, build, and debug instructions can be found in the README files.