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- 0.5.0 - initial release
- 0.5.9 - signal ABI bugfix, various cleanup and fixes:
- sigset_t was wrongly defined as 1024 bytes instead of 1024 bits,
- breaking the intended ABI compatibility with the LSB/glibc sigaction
- structure. users should upgrade immediately and rebuild any libraries
- or object files that might be using the incorrect definitions.
- improved security against DoS with tcb shadow passwords by checking
- that the file opened was really an ordinary file.
- fixed a bug in the implementation of atomic ops that could have
- allowed the compiler to incorrectly reorder them (in practice, gcc
- with the default settings on i386 was not reordering them).
- greatly improved conformance to the C and POSIX standards regarding
- what the standard header files make visible. _POSIX_C_SOURCE is now
- needed to get POSIX functions in standard C headers, and _XOPEN_SOURCE
- or _GNU_SOURCE are required to get XSI interfaces or GNU extensions,
- respectively.
- many internal improvements have been made to the syscall-related code
- in preparation for porting to x86_64 and other archs.
- 0.6.0 - x86_64 port, various important bugs fixed
- new x86_64 (amd64) architecture port, contributed by Nicholas J. Kain,
- along with PORTING guide. source tree layout and build system have
- been improved to accommodate further ports.
- various bugs that were introduced while making the headers respect C
- and POSIX namespace standards have been fixed. conformance to the
- standards has been improved.
- fixed an inefficiency in qsort that triggered a bug (occasionaly
- internal compiler error) in some versions of gcc.
- fixed a major bug in the printf %n specifier that prevented it from
- working and caused memory corruption.
- 0.7.0 - major improvements to posix conformance and completeness
- implemented posix shared memory and semaphore interfaces.
- implemented all remaining required pthread and clock interfaces.
- major fixes to signal semantics.
- greatly improved temporary file name generation for safety against
- denial of service due to intentional name collisions.
- added syscall wrappers for the linux inotify interface.
- malloc(0) now returns a non-null pointer.
- fixed printf %n specifier (again), pthread_once (it was always
- hanging), and non-default-type mutex behavior.
- added ucontext/sigcontext support in headers to facilitate building
- libgcc with dwarf2 unwind support, and possibly other low-level tools.
- improved musl-gcc compiler wrapper.
- implemented many small missing functions here and there, minor header
- fixes, etc.
- 0.7.1 - improvements to completeness, bug fixes
- implemented flockfile, wprintf, and robust mutex functions.
- fixed stack corruption bug in times(), minor header bugs, and some
- error return value bugs in thread interfaces.
- 0.7.5 - new features, major optimization, and robustness
- implemented POSIX timers.
- optimized and simplified many thread-related functions.
- eliminated resource leak races in thread cancellation.
- overhauled stdio implementation to take advantage of readv/writev for
- reduced syscall load, and improved stdio's handling of error status.
- added syscall header and interface for applications to use and
- greatly simplified internal system for making syscalls.
- strangthened tmpnam/tempnam/tmpfile filename generation and made the
- straight C functions not depend on POSIX symbols.
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