| 0.5.0 - initial release |
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| 0.5.9 - signal ABI bugfix, various cleanup and fixes: |
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| 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. |
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| improved security against DoS with tcb shadow passwords by checking |
| that the file opened was really an ordinary file. |
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| 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). |
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| 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. |
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| many internal improvements have been made to the syscall-related code |
| in preparation for porting to x86_64 and other archs. |
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| 0.6.0 - x86_64 port, various important bugs fixed |
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| 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. |
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| 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. |
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| fixed an inefficiency in qsort that triggered a bug (occasionaly |
| internal compiler error) in some versions of gcc. |
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| fixed a major bug in the printf %n specifier that prevented it from |
| working and caused memory corruption. |
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| 0.7.0 - major improvements to posix conformance and completeness |
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| implemented posix shared memory and semaphore interfaces. |
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| implemented all remaining required pthread and clock interfaces. |
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| major fixes to signal semantics. |
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| greatly improved temporary file name generation for safety against |
| denial of service due to intentional name collisions. |
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| added syscall wrappers for the linux inotify interface. |
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| malloc(0) now returns a non-null pointer. |
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| fixed printf %n specifier (again), pthread_once (it was always |
| hanging), and non-default-type mutex behavior. |
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| added ucontext/sigcontext support in headers to facilitate building |
| libgcc with dwarf2 unwind support, and possibly other low-level tools. |
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| improved musl-gcc compiler wrapper. |
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| implemented many small missing functions here and there, minor header |
| fixes, etc. |
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| 0.7.1 - improvements to completeness, bug fixes |
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| implemented flockfile, wprintf, and robust mutex functions. |
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| fixed stack corruption bug in times(), minor header bugs, and some |
| error return value bugs in thread interfaces. |
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| 0.7.5 - new features, major optimization, and robustness |
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| implemented POSIX timers. |
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| optimized and simplified many thread-related functions. |
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| eliminated resource leak races in thread cancellation. (almost all |
| existing implementations, including glibc, have these leaks.) |
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| overhauled stdio implementation to take advantage of readv/writev for |
| reduced syscall load, and improved stdio's handling of error status. |
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| added syscall header and interface for applications to use and |
| greatly simplified internal system for making syscalls. |
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| strangthened tmpnam/tempnam/tmpfile filename generation and made the |
| straight C functions not depend on POSIX symbols. |
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| fixed pthread cancellation ABI on i386 to match the LSB/glibc ABI |
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| better double-free handling in malloc |
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| various minor bug fixes |
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| 0.7.6 - major bug fixes |
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| fixed rare but serious under-allocation bug in malloc. |
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| fixed signedness bug in strchr that prevented finding high bytes. |
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| fixed serious parsing bugs in strtold. |
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| fixed statvfs syscall (it was always failing with EINVAL). |
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| fixed race condition in set*id() functions with threads (possible |
| deadlock). further audit still needed though. |
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| fseek no longer sets the stream error flag on failed seeks (this was |
| wrong and broke some programs, notably GNU m4). |
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| nl_langinfo is no longer a dummy function. (the functionality was |
| previously implemented but accidentally left unused). |
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| various small fixes have been made to the implementations and |
| prototypes for nonstandard and obsolete functions |
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| 0.7.7 - more bug fixes and program-compatibility improvements |
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| fixed floating point formatting and rounding bugs in printf. |
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| fixed broken %N$ positional argument specifiers in printf. |
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| fixed misaligned read/overread bug in strchr which could lead to |
| crashes scanning tiny strings at the end of a page when the next page |
| is not readable, or on archs (not yet supported) that forbid |
| misaligned reads. |
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| fixed breakage of statvfs on x86_64 |
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| fixed crash in getmntent_r |
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| fixed bug in POSIX timers created with NULL sigevent argument |
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| improved semaphore performance, and sem_wait is now interruptable by |
| signals, as required by POSIX. |
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| added many compatibility and system-level interfaces, increasing the |
| proportion of busybox that works with musl. |
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| 0.7.8 - more bug fixes and compatibility improvements |
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| fixed problems with ipv6 dns and address printing code that made ipv6 |
| support practically unusable, and some other getaddrinfo bugs. |
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| fixed broken sendmsg/recvmsg functions on x86_64 (caused by incorrect |
| msghdr structure). |
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| fixed broken sigsetjmp asm on x86_64. |
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| worked around a problem with input buffering on terminals reblocking |
| after getting a blank line, due to a bug in the linux readv syscall. |
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| various improvements to the "rsyscall" system used to implement |
| threaded setuid, setgid, etc. |
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| exiting/cancelling the a timer handler thread no longer kills the |
| timer. |
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| fixed incorrect trailing zeros on some %g conversions in printf. |
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| fixed buggy byte-swapping functions and moved them to inlines in |
| byteswap.h. |
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| many small improvements to header/application compatibility, support |
| for nonstandard macros, etc. |
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| 0.7.9 release notes |
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| new pthread cancellation implementation: |
| - safe against resource-leak/side-effect-leak race conditions |
| - safe against interruption by signal handlers |
| - reduced bloat in all cancellable functions |
| - reduced bloat for blocking cancellation |
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| new interfaces implemented: |
| - realpath (limited functionality) |
| - wordexp (limited functionality) |
| - flock (nonstandard) |
| - forkpty (nonstandard) |
| - posix_fadvise |
| - posix_fallocate |
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| general bug fixes: |
| - syslog function failure to communicate with syslogd |
| - bug in siginfo_t definition if wait.h was included before signal.h |
| - incorrect struct definitions for most of sysv ipc |
| - pthread_exit/cancel on timer handler wrongly destroying the timer |
| - linux dup2 ebusy workaround |
| - obscure issues in non-threaded programs using some pthread functions |
| - getopt_long allowed mismatch in last char of option name |
| - incorrect parsing of obscure ip address forms |
| - initgroups not working reliably (uninitialized var) |
| - shadow pass treating empty expiry field as pass-expired-in-1970 |
| - bogus longjmp if pthread_exit was called from cancellation handlers |
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| x86_64-specific bug fixes: |
| - fcntl file locking |
| - thread stack alignment |
| - broken select timeouts due to incorrect timeval definition |
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| 0.7.10 release notes |
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| new features: |
| - ipv6 numeric string parsing |
| - eventfd syscall wrappers |
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| optimizations: |
| - new qsort implementation using the smoothsort algorithm |
| - much smaller/faster sigset_t handling functions |
| - lowered spin count before futex wait in synchronization functions |
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| general bug fixes: |
| - incorrect floating point round-to-even behavior in printf |
| - major bugs in pthread barrier implementation |
| - off-by-one error in scanf %n results |
| - scanf failure to report EOF when scanning for literal text |
| - minor missing/incorrect prototype issues |
| - dependency on undefined call order in fclose |
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| compiler issue workarounds: |
| - incorrect inlining of variadic functions on recent gcc versions |
| - pcc preprocessor bug with recursive macro expansion |