update release notes to new format, add more

[musl] / WHATSNEW

diff --git a/WHATSNEW b/WHATSNEW
index 0915268..6325334 100644 (file)
--- a/WHATSNEW
+++ b/WHATSNEW
@@ -88,7 +88,8 @@ implemented POSIX timers.
 
 optimized and simplified many thread-related functions.
 
-eliminated resource leak races in thread cancellation.
+eliminated resource leak races in thread cancellation. (almost all
+existing implementations, including glibc, have these leaks.)
 
 overhauled stdio implementation to take advantage of readv/writev for
 reduced syscall load, and improved stdio's handling of error status.
@@ -98,3 +99,123 @@ greatly simplified internal system for making syscalls.
 
 strangthened tmpnam/tempnam/tmpfile filename generation and made the
 straight C functions not depend on POSIX symbols.
+
+fixed pthread cancellation ABI on i386 to match the LSB/glibc ABI
+
+better double-free handling in malloc
+
+various minor bug fixes
+
+
+
+0.7.6 - major bug fixes
+
+fixed rare but serious under-allocation bug in malloc.
+
+fixed signedness bug in strchr that prevented finding high bytes.
+
+fixed serious parsing bugs in strtold.
+
+fixed statvfs syscall (it was always failing with EINVAL).
+
+fixed race condition in set*id() functions with threads (possible
+deadlock). further audit still needed though.
+
+fseek no longer sets the stream error flag on failed seeks (this was
+wrong and broke some programs, notably GNU m4).
+
+nl_langinfo is no longer a dummy function. (the functionality was
+previously implemented but accidentally left unused).
+
+various small fixes have been made to the implementations and
+prototypes for nonstandard and obsolete functions
+
+
+
+0.7.7 - more bug fixes and program-compatibility improvements
+
+fixed floating point formatting and rounding bugs in printf.
+
+fixed broken %N$ positional argument specifiers in printf.
+
+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.
+
+fixed breakage of statvfs on x86_64
+
+fixed crash in getmntent_r
+
+fixed bug in POSIX timers created with NULL sigevent argument
+
+improved semaphore performance, and sem_wait is now interruptable by
+signals, as required by POSIX.
+
+added many compatibility and system-level interfaces, increasing the
+proportion of busybox that works with musl.
+
+
+
+0.7.8 - more bug fixes and compatibility improvements
+
+fixed problems with ipv6 dns and address printing code that made ipv6
+support practically unusable, and some other getaddrinfo bugs.
+
+fixed broken sendmsg/recvmsg functions on x86_64 (caused by incorrect
+msghdr structure).
+
+fixed broken sigsetjmp asm on x86_64.
+
+worked around a problem with input buffering on terminals reblocking
+after getting a blank line, due to a bug in the linux readv syscall.
+
+various improvements to the "rsyscall" system used to implement
+threaded setuid, setgid, etc.
+
+exiting/cancelling the a timer handler thread no longer kills the
+timer.
+
+fixed incorrect trailing zeros on some %g conversions in printf.
+
+fixed buggy byte-swapping functions and moved them to inlines in
+byteswap.h.
+
+many small improvements to header/application compatibility, support
+for nonstandard macros, etc.
+
+
+
+0.7.9 release notes
+
+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
+
+new interfaces implemented:
+- realpath (limited functionality)
+- wordexp (limited functionality)
+- flock (nonstandard)
+- forkpty (nonstandard)
+- posix_fadvise
+- posix_fallocate
+
+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
+
+x86_64-specific bug fixes:
+- fcntl file locking
+- thread stack alignment
+- broken select timeouts due to incorrect timeval definition