build system:
- only use expensive -ffloat-store cflag on archs/compilers that need it
- make musl-gcc wrapper support -lgcc (mainly for self-hosting)
+
+
+
+0.9.4 release notes
+
+new features:
+- blowfish crypt
+- dynamic linking on mips
+- arm hard float support
+- BSD fgetln function in stdio
+- minor header improvements for compatibility
+- support for CROSS_COMPILE variable to configure
+- legacy significand function
+- better support for SUSv3-targeted programs
+
+performance:
+- assembly (string ops based) memcpy for i386 and x86_64
+- reduce printf overhead
+
+bug fixes:
+- failure of strtod, etc. to process extremely long strings correctly
+- read overrun in wcsstr for short needles
+- various major mips issues that prevented most software from working
+- erroneous floating point exception behavior in i386/x86_64 exp asm
+- crashes on null arguments to legacy err.h functions
+- various header file/type issues
+- extremely rare/obscure race condition with robust mutexes
+- crypt now never returns null (most programs don't check, then crash)
+- missing xattr remove functions
+
+
+
+0.9.5 release notes
+
+compatibility and headers:
+- POSIX+XSI+BSD features enabled by default with no macros defined
+- most programs can now be built without adding -D_GNU_SOURCE
+- added C99 restrict keyword where required in all prototypes
+- greater C89 compatibility
+- cleaner, more-compatible public syscall.h
+- many other header fixes
+- support for compiling musl with clang/llvm
+
+new features:
+- sha 256/512 password hash functions in crypt
+- GNU hash support in dynamic linker
+- partial C11 coverage
+- dladdr function added
+- dynamic linker reports all errors instead of exiting on first error
+- syscall wrappers added for most remaining linux syscalls
+- provide POSIX O_SEARCH open mode using linux O_PATH
+
+bug fixes:
+- most atexit functions were being skipped when exiting
+- some BSD functions were not being exposed under _BSD_SOURCE
+- issues loading ssp-protected DSO into non-ssp program with dlopen
+
+debloating:
+- eliminate .eh_frame (10-15% loaded size bloat)
+- optimal inline syscall asm for ARM and MIPS
+- no longer force -O3 for shared libs
+
+
+
+0.9.6 release notes
+
+bug fixes:
+- serious breakage in definition of O_ACCMODE mask (missing a bit)
+
+new features:
+- O_EXEC open mode
+- md5 crypt hash function
+
+
+
+0.9.7 release notes
+
+new features:
+- thread-local storage (__thread/_Thread_local)
+- microblaze port
+- getopt option parsing reset support
+- vsyscall (sysenter, etc.) support on i386 (faster syscalls)
+- memmem function (GNU extension)
+- mips fenv support
+- accept "nan(n-char-sequence)" in strtod/scanf family functions
+- configure now supports compiling with pcc
+
+quality and correctness improvements:
+- close-on-exec flag for all library-internal file descriptors
+- cancellation-safety and corner-case overhaul in shm_open/sem_open
+- close EINTR vs EINPROGRESS issue
+- mark binaries as not requiring executable stack
+- better gdb compatibility in dynamic linker
+- support recursive dlopen (dlopen called from constructors)
+- posix_spawn/system/popen no longer momentarily double commit charge
+- all stdio functions wait for locks
+
+bug fixes:
+- broken sysvipc *ctl functions on 64-bit archs
+- broken shmdt on some archs
+- getaddrinfo failure with port "0"
+- dirname handling of trailing slash
+- vfork race in posix_spawn
+
+
+
+0.9.8 release notes
+
+new features:
+- powerpc port
+- dl_iterate_phdr interface
+- added mips-specific syscalls
+- thread priority scheduling
+- C11 CMPLX macro in complex.h
+- x86 port io functions in sys/io.h
+
+compatibility:
+- improved headers for trace/debugging/machine-access
+- stub functions for unsupported thread-related functionality
+
+bug fixes:
+- numerous math bugs (mostly exception flags and excess-precision issues)
+- register clobber error in i386 vsyscall asm (did not affect most callers)
+- various incorrect definitions in mips headers
+- broken dlsym asm on mips
+- empty prefix handling in configure script (--prefix="")
+- ldso search path logic issues
+- lock handling for stdio memory streams at exit time
+- invalid SO_REUSEPORT definition in socket.h (not supported by Linux)
+- broken redirection attempt to /dev/null in configure script
+
+
+
+0.9.9 release notes
+
+new features:
+- tgamma implementation (no longer lgamma wrapper with low precision)
+- various gnu extensions: sigandset, sigorset, etc.
+- futimesat function (obsolete)
+- various linux syscalls: arch_prctl, personality, etc.
+
+optimizations:
+- hyperbolic, inverse hyperbolic, and inverse trig, bessel functions
+- is* comparison macros in math.h now expand inline properly
+
+library bugs fixed:
+- calling getenv from shared library ctors was broken
+- invalid read in mmap-serviced aligned_alloc/memalign (possible crash)
+- wrong errno result in fallback path of pipe2
+- various math functions raising spurious exceptions
+- mmap errno value on invalid offsets
+- backwards alignment logic in strlcpy
+- integer overflows in bessel functions
+- large (up to 60ulp) error in erfcf
+- dlsym/dlclose crashing on invalid library handles
+- failure to handle arch variations for cloexec/nonblock flags
+- lio_listio wrong return value for LIO_WAIT mode
+- dladdr failure to resolve PLT addresses
+- time_t/struct tm conversion off-by-one-day in december
+- malloc corruption on nonstandard kernels with non-page-aligned brk
+
+arch-specific bugs fixed:
+- arm ctors/dtors were not working with recent gcc versions
+- arm and mips setjmp/longjmp wrongly saved/restored fenv state
+- loss of precision in i386/x86_64 expl
+
+header bugs fixed:
+- incorrect PRI/SCN macros in inttypes.h for some types
+- arm sys/user.h regressions
+- failure of offsetof() to be an integer constant expression
+- tgmath return value type problems
+
+header compatibility improvements:
+- _GNU_SOURCE now enables everything; _ALL_SOURCE also works
+- scsi/scsi.h and scsi/sg.h are now provided
+- additional MAP_* flags for mmap
+- additional F_* commands and flags for fcntl
+- additional socket option, IPPROTO_* values, and multicase macros
+- thread-related waitpid flags
+- EHWPOISON added to errno.h
+- additional macros for mount, swap, and reboot operations
+- expose additional link.h structures
+- always ensure sizeof(NULL)==sizeof(void *), even in c++
+- additional flags for poll, epoll, inotify, timerfd, timex, dlfcn
+- register names in signal.h/ucontext.h for x86
+- ipc.h ipc_perm nonstandard struct field name compatibility improve
+
+
+
+0.9.10 release notes
+
+new features:
+- getifaddrs
+- pthread_getattr_np (widely used by garbage collectors)
+- mkostemps, mkostemp, mkstemps functions (mkostemp is future-POSIX)
+- strcasestr and strverscmp (previously stubs)
+
+improvements:
+- major performance improvements in mbtowc
+- avoid filling caller-provided thread stacks with large TLS
+- debloat unnecessary static buffers
+- robust posix_spawn based on CLONE_VM instead of vfork
+- new system() and popen() based on posix_spawn
+- better strerror strings
+- further emulation of atomic close-on-exec/nonblock options for old kernels
+- provide macro constants for new-ish kernel features
+
+compatibility:
+- several nonstandard but widely-available pwd/grp/shadow functions
+- program_invocation_[short_]name
+- re-added useconds_t type used by some programs
+- some legacy arpa headers
+- dn_skipname function (legacy resolver API)
+- additional ABI aliases for supporting glibc-linked libraries/binaries
+
+general bugs fixed:
+- stale locks and bogus munmap call when pthread_create fails
+- uninitialized argument to munmap when dynlink load_library fails
+- incorrect error returns in gethostby*_r
+- memory leak in gethostbyname family
+- blank ai_canonname in getaddrinfo for non-CNAME records
+- undefined HZ macro in scsi/sg.h
+- wrong return value for wmemmove on forward-copy
+- namespace conformance in strings.h
+- various utmp.h bugs
+- unnecessary DT_SONAME in libc.so caused problems on some systems
+- multiple bugs in syslog, some possibly dangerous
+- non-functional setpriority function
+- slight mishandling of 0xf5 byte in UTF-8 decoder
+- misaligned memory accesses in mbsrtowcs
+
+arch-specific bugs fixed:
+- crash in shared library loading on arm
+- missing __aeabi_atexit needed by arm eabi
+- wrong float_t definition on x86_64
+- various low-impact type size/alignment mismatches in some headers
+- epoll struct alignment wrong on non-x86[_64] archs
+- broken pipe2 fallback code on mips with old kernels
+
+
+
+0.9.11 release notes
+
+new features:
+- %m allocation modifier for scanf
+- week number and ISO week-based-year functionality in strftime
+- per-process and per-thread cputime clocks
+- ethernet address conversion interfaces
+- legacy classful ipv4 network address interfaces
+- minimal dlinfo function (nonstandard)
+
+other improvements:
+- dynamic linker path file can now use newlines to separate paths
+- math optimizations for archs with extended precision (i386)
+- musl-gcc wrapper now exposes gcc's intrinsic headers
+- quality of rand and rand_r pseudo-random sequences
+- support for large device minor numbers (greater than 8 bits)
+- various header conformance and compatibility fixes
+
+directly user-visible bugs fixed:
+- scanf losing characters on unbuffered streams and fmemopen streams
+- failure of mbsrtowcs to record stop position when dest is full
+- failure of iconv to convert to legacy codepages
+- non-working pthread_[sg]etschedparam functions (wrong syscall arguments)
+
+other potentially-serious bugs fixed:
+- resource leaks in sem_open
+- various bugs in thread exit synchronization
+- invalid access in aio notification after aiocb free/reuse
+- synchronization in dynamic linker when new thread dlopens during ctors
+- lack of error handling for failure to read dynamic linker path file
+- creation by mmap or shmget of objects larger than PTRDIFF_MAX
+
+minor conformance bugs fixed:
+- overflow handling for the clock function
+- workaround for incorrect exceptions in fma due to compiler bugs
+- workaround wrong kernel type for sem_nsems field in struct semid_ds
+
+arch-specific bugs fixed:
+- x86_64 sigsetjmp clobbered the signal mask rather than saving it
+- misaligned stack when calling ctors/dtors (crashing on x86_64)
+
+
+
+0.9.12 release notes
+
+new features:
+- zoneinfo time zone support
+- PIE support on all supported archs
+- named sub-archs for endian and float ABI variants
+- improved support for non-root installs of the dynamic linker
+- ability to selectively build only performance-critical modules with -O3
+- simple buffer overflow detection in free/realloc
+- inet_ntop now presents v4-mapped addresses in ::ffff:a.b.c.d form
+- ldd now reports libc and the dynamic linker in its output
+
+compatibility:
+- support for new init/fini array (needed for ctors/dtors on newer gcc)
+- C++ ABI fully matches glibc/LSB, at least on x86
+- many added ABI compatibility symbols for using glibc-linked libs
+- support for STB_GNU_UNIQUE symbol bindings (found in some C++ libs)
+- macros/types for new Linux kernel features in headers
+
+bugs fixed:
+- crashes in scanf on literal mismatches (regression from adding %m)
+- dl_iterate_phdr was passing invalid phdr pointers to its callback
+- getaddrinfo with null host and AF_UNSPEC was failing to report IPv6
+- integer overflows in date/time conversion code
+- misinterpretation of pre-1930s dates as post-2038 on 32-bit archs
+- make install failed to install bits headers if make was not run first
+- shm_open was wrongly cancellable
+- low- or no-impact heap corruption in memalign
+- explicitly running the dynamic linker on PIE programs did not work
+- missing macros and sysconf for some supported POSIX option groups
+- missing close-on-exec flags for several internal fd uses
+
+arch-specific bugs:
+- wrong SIG_ATOMIC_MIN/MAX macros on x86_64
+- erfcl was missing on archs where long double is same as double
+- broken dynamic-model TLS in static-linked arm/mips/powerpc programs
+
+
+
+0.9.13 release notes
+
+new features:
+- iconv support for EUC-KR and Big5 (including HKSCS) encodings
+- field widths (POSIX 2008 feature) in strftime
+- recursive rpath and $ORIGIN support in dynamic linker
+- cpu affinity interfaces
+- support for armhf (hardfloat) floating point environment (fenv)
+- support for SSE fenv on i386 (for apps using -mfpmath=sse -msse2)
+- strftime %s format (seconds since the epoch, future POSIX requirement)
+- configure script now saves its command line as a comment in config.mak
+- legacy functions valloc and euidaccess
+
+performance:
+- optimized asm memcpy for arm
+- optimized asm memset for i386 and x86_64
+- optimized C versions of memcpy and memset for all archs
+- eliminated major spurious syscalls from posix_spawn
+- some math asm for armhf (hardfloat)
+
+workarounds for:
+- qemu-user's rt_sigaction syscall does not allow old to alias new
+- qemu-user's madvise always succeeds (broke pthread_getattr_np)
+- passing PT_INTERP to dlopen attempted to double-load libc
+- gcc 4.8.x generating self-referential (infinite recursion) memcpy/memset
+- linux's lack of support for fchdir, fchmod, fchown, fstat on O_PATH fds
+
+bugs fixed:
+- failure to honor flags for fchmodat and faccessat (linux syscall api flaws)
+- SIGEV_THREAD timer id corruption and race condition issues
+- timer thread TLS incorrectly keeping values from previous expiry run
+- ecvt/fcvt decimal position off-by-one
+- in symbol-versioned libs, symbol resolved to oldest instead of newest
+- posix_spawn not correctly reporting errno from exec failure
+- "make install" was not atomic (overwrote files rather than replacing)
+- integer overflows in strftime
+- unset/empty TZ variable was mishandled
+- strftime could crash if the struct tm did not have valid tm_zone field
+- failure of fenv functions to handle invalid arguments (required by ISO C)
+- failure of some math functions (C and i386 asm) to raise underflow flag
+- broken dn_expand function (previously not used internally)
+- race conditions with signals during fork
+- incorrect access check in mktemp (obsolete function)
+- unnecessary arbitrary limits on size of program headers in dynamic loader
+- text formatting bugs in output of err.h functions
+
+arch-specific bugs:
+- fesetenv(FE_DFL_ENV) crashed on i386
+- breakage of arm crt code when libc is compiled as thumb
+- arm/armhf (hardfloat) misidentified by configure
+- ambiguity of wait (exit status) macros on mips with signal number 127
+- wrong value of _NSIG and SIGRTMAX on mips
+
+
+
+0.9.14 release notes
+
+bugs fixed:
+- failure to properly install dynamic linker with DESTDIR set (symlink wrong)
+- rare deadlock in libc-internal locking routines
+- dynamic linker used fallback paths wrongly on (possibly transient) errors
+- popen broken when stdin or stdout was already closed in parent
+- deadlock/memory-corruption in multithreaded set*id and setrlimit functions
+- realpath failed when file was not readable
+- readpath mistakenly had cancellation points in it
+- crashes in scanf with invalid %m conversion specifiers
+- misclassificiation of some invalid ld80 float representation in fpclassify
+- various overflow and underflow flag issues in math functions
+- domain handling errors for acoshf and acoshl
+- wrong values for some sysconf properties
+- lack of proper memory barriers on arm
+
+mips-specific bugs:
+- broken sysv ipc structures
+- multiple stack-related bugs in clone, leading to crashes in parent or child
+- overflow writing sigset_t in multithreaded set*id and setrlimit functions
+
+other improvements:
+- size and performance improvements to various math functions
+- wait.h as a compatibility alias for sys/wait.h
+- various header improvements
+- support for runtime-variable page size on archs that need it (mainly mips)
+
+
+
+0.9.15 release notes
+
+new features:
+- support for mixing IPv4 and v6 nameserver addresses in resolv.conf
+- RFC 3678 multicast structures/macros in netinet/in.h
+- putspent and fgetspent functions (shadow password API)
+- timef function (obsolete, removed in POSIX 2008)
+- fanotify syscalls (Linux-specific feature)
+- semtimedop syscall (Linux-specific sysvipc extension)
+- quotactl syscall and header (filesystem quotas support)
+- drem and finite functions (obsolete BSD functions)
+- getloadavg function (non-standard)
+- herror function (non-standard and obsolete)
+- libc.so now stores and prints its version information
+- expose constants for new Linux features including O_TMPFILE
+- implement FNM_LEADING_DIR option to fnmatch (GNU extension)
+- posix_close function (accepted for inclusion in next POSIX issue)
+
+bugs fixed:
+- buffer overflow in mbsrtowcs
+- clobbering of gr_name in getgrnam_r and getgrgid_r
+- execle ignoring the environment argument
+- setenv crash on malloc failure
+- out-of-bounds access in fnmatch with FNM_PATHNAME and certain patterns
+- failure of malloc to set errno when failing to extend heap
+- incorrect errno value from getcwd with zero size
+- spurious failure in faccessat with AT_EACCESS flag with suid/sgid programs
+- several fd leaks due to missing close-on-exec flag
+- misspellings/typos in macro names in several headers
+- incorrect failure return value in inet_pton
+- various numeric ip address parsing and validation fixes
+- namespace conformance issues in several headers
+- minor header issues
+- zombie processes left by faccessat with AT_EACCESS
+- timezone file parser failing/crashing on 64-bit archs
+- hang in localtime with near-overflowing time_t values on 64-bit archs
+- timezone path search was only trying first path
+- incorrect handling of excessive-length TZ environment strings
+- timezone file loading was wrongly enforcing O_NOFOLLOW/rejecting symlinks
+- iswspace was wrongly returning true for the null character
+- various bugs in wordexp
+- putgrent could write corrupt lines after write failures
+- dn_expand misinterpreted in-packet offsets greater than 255
+- spurious strftime/wcsftime failure on len+1==bufsize case
+- incorrect underflow flag in fma corner cases
+- log*(0) wrongly returned +inf in downward-rounding mode
+- failure of fchmod, fstat, fchdir, and fchown to produce EBADF
+
+arch-specific bugs fixed:
+- i386: failure of fesetround to set sse rounding mode
+- i386: floating point limit constants misinterpreted due to excess precision
+- powerpc: broken thread pointer access when compiled with clang
+- microblaze: dynamic linker entry point code possibly clobbering argv
+
+strict conformance issues:
+- NULL definition re-aligned with POSIX (requires (void *) cast)
+- alignment of math.h is* comparison functions with C11 annex F requirements
+
+
+
+1.0.0 release notes
+
+new features:
+- support for mips softfloat ABI variant
+- legacy setkey and encrypt API for DES
+- support for BSD version of struct tcphdr in addition to GNU version
+- added ipv6 and icmpv6 protocol lookups to getprotoent-family functions
+
+new experimental ports:
+- sh (SuperH)
+- x32 (ILP32 ABI for x86_64)
+
+compatibility:
+- improved c89 compiler support in math.h
+- eliminate some compiler warnings in public headers
+- added some missing things for LFS64 APIs
+- added fallback emulation of accept4 for older kernels
+
+bugs fixed:
+- buffer overflow in printf when printing smallest denormal exactly
+- rounding errors in printf in some just-over-halfway cases
+- posix_spawn did not accept null pid pointer (crashed)
+- ftello gave incorrect result for unflushed append-mode streams
+- mishandling of n=0 case in wcsxfrm (wild buffer overrun)
+- possible system breakage during libc upgrade due to install.sh bugs
+- nftw FTW_MOUNT flag prevented walking any directories at all
+- ptsname/ptsname_r returned negated error codes
+- getprotoent function returned junk after listing valid protocols
+- wrong error code from readdir when the directory has been deleted
+- various prototype/argument-type fixes, mostly to legacy functions
+- various header namespace violations
+
+arch-specific bugs fixed:
+- fesetenv(FE_DFL_ENV) was broken on i386 and x86_64
+- strerror(EDQUOT) did not work on mips
+- recvmsg/sendmsg were broken on powerpc
+- sysv ipc was broken on powerpc and mips
+- statfs/statvfs were broken on mips
+- sigaltstack was broken on mips
+
+
+
+1.1.0 release notes
+
+new features:
+- relro memory protection in dynamic linker
+- malloc can now extend heap with mmap if brk fails
+- vdso clock_gettime/gettimeofday/time acceleration on x86_64
+- thread/library-safe versions of search.h functions (nonstandard)
+- getauxval function (nonstandard)
+- sysconf extensions to query physical memory size
+
+bugs fixed:
+- floating point printf output corruption from carry into uninitialized slot
+- possible runaway carry overflow in printf floating point
+- printf %g failure to strip trailing zeros in some cases
+- search past end of haystack in memmem
+- off-by-one error in confstr return value
+- crashes in some near-empty static programs that use stack protector
+- deadlock race in pthread_once
+- non-working clock_gettime fallback for old kernels
+
+arch-specific bugs fixed:
+- crash from missing syscall asm register clobbers on real microblaze kernel
+- crash in all nontrivial dynamic linker use on microblaze
+- incorrect rlimit constants on mips
+- broken, possibly dangerous, use of getrlimit syscall on x32 in sysconf
+
+
+
+1.1.1 release notes
+
+new features:
+- new options --preload and --library-path to dynamic linker
+- public execvpe function (nonstandard extension)
+- iconv support for cp437 and cp850
+
+bugs fixed:
+- false negatives with some periodic needles in strstr, wcsstr, and memmem
+- crash on invalid zoneinfo files
+- incorrect zero-padding of some outputs for strftime %s specifier
+- misreporting of errors in configure script when $CC does not work at all
+- treating not-yet-implemented strptime specifiers as errors
+
+compatibility:
+- configure now detects serious constant-folding bug in gcc 4.9.0
+- removed __yield symbol (unused) that clashed with some compilers
+- improvements to sysconf's handling of unsupported/invalid arguments
+
+arch-specific bugs fixed:
+- misdetection of superh ABI variant by configure on gcc 3.x
+- missing SO_RCVBUFFORCE and SO_SNDBUFFORCE in mips socket.h
+- build regression on armv6 and later with -mthumb
+
+
+
+1.1.2 release notes
+
+new features:
+- multi-protocol matches (tcp and udp) in getaddrinfo
+- support for AI_V4MAPPED and AI_ALL flags to getaddrinfo
+- reverse name lookups from /etc/hosts
+- reverse service lookups from /etc/services
+- support for service aliases in /etc/services
+- ipsec and tunneling protocols to getprotoent-family functions
+- res_send, res_mkquery, res_querydomain, and dn_comp functions
+- ipv6 scope id handling for link-local scope addresses
+- previously-unimplemented %C and %y in strptime now work
+- vdso clock_gettime acceleration on i386 (new kernel feature)
+- better O_CLOEXEC/SOCK_CLOEXEC fallbacks for old kernels
+
+bugs fixed:
+- buffer overflow in dns response parsing (CVE-2014-3484)
+- possible infinite loop in dns response parsing
+- sendfile off_t 32/64-bit size mismatch
+- incorrect end pointer in some cases when wcsrtombs stops early
+- incorrect if_nametoindex return value when interface does not exist
+- dummy "ent" function aliases that possibly shadowed real ones
+- tmpfile fd leak on memory exhaustion
+- getaddrinfo returning EAI_NONAME for some transient failures
+
+arch-specific bugs fixed:
+- broken kernel side RLIM_INFINITY on mips
+- incorrect syscall argument 6/7 types for pselect on x32
+
+
+
+1.1.3 release notes
+
+new features:
+- address sorting in getaddrinfo, etc. modeled on rfc 3484/6724
+- default timezone taken from /etc/localtime when $TZ is unset
+- getopt double-colon extension for optional arguments
+- support for TLSDESC-based (gnu2) TLS dialect on i386 and x86_64
+- sendmmsg/recvmmsg (linux-specific)
+- fmtmsg (last mandatory XSI function that was missing)
+
+compatibility:
+- treat dns rcode=2 as temporary failure, not negative result
+- working thread-pointer for pre-2.6 kernels on i386
+- further ABI-compat symbols: __xmknod[at], __sysv_signal
+
+bugs fixed:
+- memmem false positives/false negatives/crashes from invalid logic
+- gethostby*_r not setting result pointer to null on failure
+- aliasing violations in syscall.h SYSLOG_NAMES feature
+- fanotify_mark syscall arguments wrong
+
+arch-specific bugs fixed:
+- various subtle relocation bugs in powerpc and sh dynamic linker
+
+
+
+1.1.4 release notes
+
+new features:
+- experimental locale support for LC_MESSAGES and LC_TIME
+- non-stub gettext family functions for message translation
+- or1k (OpenRISC 1000) port
+- syslog options LOG_CONS and LOG_PERROR
+- issetugid function (from OpenBSD)
+- improved if_nameindex and getifaddrs functions
+
+compatibility:
+- work around bug #61144 in gcc 4.9.0 and 4.9.1
+- support getauxval(AT_SECURE) even on kernels without AT_SECURE
+
+bugs fixed:
+- empty dynamic linker error messages (regression in 1.1.3)
+- if_nameindex omitted unconfigured and ipv6-only interfaces
+- incorrect return value for fwide function
+- failure of wide printf/scanf functions to set wide orientation
+- multiple issues in legacy function getpass
+- dynamic linker did not accept colon as a separator for LD_PRELOAD
+- errno clobber in syslog caused wrong output for %m specifier
+- crash in regexec for nonzero nmatch argument with REG_NOSUB
+- minor bugs in rarely-used nl_langinfo item lookups
+
+arch-specific bugs fixed:
+- broken relocations in mips dynamic linker (regression in 1.1.3)
+- register state corruption in setjmp asm for microblaze
+- broken struct stat st_ino field on microblaze
+- broken struct stat st_dev field on big endian mips
+- broken asm register constraints in atomics on powerpc
+- missing barriers in atomics on mips, powerpc, microblaze, and sh
+
+
+
+1.1.5 release notes
+
+new features:
+- full C11 coverage (threads, UTF-16/32 API, timespec_get, etc.)
+- malloc_usable_size function (nonstandard)
+- support for new F_OFD_* fcntl operations (linux 3.15, POSIX-future)
+- new _DEFAULT_SOURCE feature test macro to request default profile
+
+performance:
+- private-futex support
+- redesigned cond var implementation with major performance improvement
+- tweaked spinning in userspace before performing futex waits
+
+bugs fixed:
+- failure of dn_expand to null-terminate name for crafted DNS packets
+- corruption of cond var mutex state when switching mutexes
+- use of uninitialized memory with application-provided thread stacks
+- false ownership of orphaned mutexes due to tid reuse
+- possible failure-to-wake for robust mutexes on owner death
+- subtle errors in robust mutex unrecoverable status handling
+- missing memory/compiler barrier spinning to obtain locks
+- wrong behavior in various zero-length stdio operations
+- buffer overflow in swab with odd argument
+- incorrect sequence generation in the rand48 family of prng functions
+- missing cancellation check in non-wait paths of sem_wait, pthread_join
+- missing barrier in pthread_once fast path
+- memory leak in regexec when input contains illegal sequence
+- various parser bugs in regcomp
+- wrong return value on overflow in some strtoul-family functions
+- broken CPU_EQUAL macro in sched.h
+- dlerror not working in static-linked programs
+- mishandling of negative non-whole-hour TZ offsets
+- incorrect case mappings for U+00DF
+- namespace pollution via accidentally-non-static function named "dummy"
+- missing __fpclassifyl and __signbitl definitions for ld64 archs
+
+
+
+1.1.6 release notes
+
+new features:
+- getopt '-' flag for processing non-option arguments
+- getopt_long argument permutation extension
+- getopt_long abbreviated options
+- ns_parserr and related DNS-packet-parsing functions
+- fnmatch FNM_CASEFOLD extension
+- support for translation of getopt error messages
+- login_tty function (legacy)
+
+performance:
+- efficient atomics on armv7+ targets
+- pthread_once shrink-wrapping of fast path
+
+compatibility:
+- baseline arm binaries now work on new cpus/kernels without kuser_helper
+- dynamic linker now honors DT_RUNPATH without DT_RPATH (new binutils)
+- arm asm is now compatible with clang's internal assembler
+- suppress macro implementations of functions when headers are used in C++
+- increased message length limit for syslog
+
+bugs fixed:
+- open ignored file creation mode argument for O_TMPFILE
+- wrong printf formatting for %#.0o with value zero
+- missing private state for uchar.h functions (null ps pointer)
+- sched_getaffinity left uninitialized data in output bit array
+- wrong return values for pthread_getaffinity_np and pthread_setaffinity_np
+- buggy handling of multibyte option chars with arguments in getopt
+- printf failed to report or stop on write errors
+- printf failed to honor '+' modifier when printing NANs
+- wcsnrtombs returned the wrong value in one code path
+- syslog failed to check for connect error
+- multi-threaded set*id() had spurious failures from ugly workaround code
+- various minor header conformance bugs (signedness, constant expressions, ...)
+
+arch-specific bugs fixed:
+- on or1k, some syscalls with 64-bit arguments were broken (misaligned)
+- usage of sahf instruction on x86_64 crashed on some early cpu models
+
+
+
+1.1.7 release notes
+
+new features:
+- alternate passwd/group backend support via nscd protocol
+- masked cancellation mode extension (experimental)
+- aio cancellation
+- aarch64 port (experimental)
+
+performance:
+- significant memset asm optimizations on i386 and x86_64
+
+compatibility:
+- suppress EINTR in semaphores for old kernels where futex restart is broken
+- always set optarg in getopt_long
+- support SOCK_RAW socket type in getaddrinfo
+- report success instead of EINPROGRESS when close is interrupted
+
+bugs fixed:
+- multithreaded set*id() was not async-signal safe, had various race bugs
+- getspnam_r returned results for partial username matches
+- wordexp bad character checker mis-counted parentheses
+- close on fd with pending aio could lead to file corruption
+- old aio implementation had numerous conformance bugs
+- malloc init code could deadlock due to race condition
+- pthread_exit did not disable cancellation
+- pthread_cond_wait could wrongly consume signal on cancellation
+- execvp wrongly stopped path search on EACCESS
+- fsync, fdatasync, and msync were not honored as cancellation points
+- fchmodat was subject to fd leak race (missing O_CLOEXEC)
+- fchmodat failed to report EOPNOTSUPP in race path
+- passwd/group lookup functions had various minor error-reporting bugs
+- isatty had false-positives/device-state-corruption for OSS sound devices
+- configure script failed to detect gcc with translated messages
+- FLT_ROUNDS macro failed to reflect rounding mode changes in fenv
+
+arch-specific bugs fixed:
+- mips fesetenv did not handle FE_DFL_ENV
+- mips POLLWRNORM and POLLWRBAND macros had wrong values
+- x32 pthread synchronization object type definitions were wrong
+- powerpc minimum signal stack size was insufficient
+
+
+
+1.1.8 release notes
+
+bugs fixed:
+- stack-based buffer overflow in inet_pton (CVE-2015-1817)
+- regcomp crash/mem-corruption with illegal bytes after backslash
+- regcomp wrongly allowed backrefs in ER
+- regcomp miscompiled character class brace-repetitions
+- regcomp wrongly processed \0 as an unmatchable backref
+- new FLT_ROUNDS definition failed to work in C++ code
+
+arch-specific bugs fixed:
+- aarch64 was missing max_align_t definition
+
+
+
+1.1.9 release notes
+
+new features:
+- ability to protect libc code itself with stack protector
+- sigsetjmp now restores signal mask after restoring context, not before
+- thread-local dlerror status/messages
+- dlerror messages are no longer truncated
+- diagnostics for constraint violations with ctype.h macros
+
+optimizations:
+- reduce cost of PIC on archs where PLT calls need a fixed GOT register
+- spin locks no longer constantly invalidate cache lines while spinning
+- code size reduction in static-linked TLS init
+
+bugs fixed:
+- failure to process robust mutexes on detached-thread exit
+- possible memory corruption due to robust mutex list on detached-thread exit
+- crash on memory exhaustion in getgr* internals
+- misaligned memory accesses in static binaries with low-alignment TLS blocks
+- multiple cases of wrongful path search continuation after transient failure
+- small memory leak on failure of dlopen with RPATH $ORIGIN
+- several small math bugs related to exception flags with non-finite args
+- mmap leak in sem_open failure path for link call
+- duplocale clobbered new locale struct with memcpy of old
+- futimes crashed with null timeval argument
+
+arch-specific bugs fixed:
+- stack protector spuriously aborted after forking on x32
+- stack protector spuriously aborted with flockfile on powerpc
+- theoretically-possible clobbering of syscall return value on mips
+- random thread-pointer setup failure on sh (uninitialized return value)
+- possible crash in dlsym on sh due to incorrectly-computed branch target
+- broken fesetenv(FE_DFL_ENV) on mips
+- dynamic linker name for sh ignored fpu/nofpu and endianness
+- various minor aarch64 bugs
+- dangling pointers in x32 syscall timespec fixup code
+
+
+
+1.1.10 release notes
+
+new features:
+- fail-safe (allocation-free) C locale for newlocale to return
+- all locale categories track requested locale name
+- rcrt1.o start file for static PIE
+
+optimizations:
+- inline atomics for sh4a
+- removed heavy atomics from locale-related code paths
+- removed global data accesses from CURRENT_LOCALE macro & callers
+- dynamic linker stage 1 size reduction
+
+compatibility:
+- better configure detection of unsupported compiler options
+- support for more relocation types in libc.so, not currently used
+- iconv_open accepts "" and "CHAR" as aliases for native (UTF-8)
+- additional LFS64 macros in sys/resource.h
+
+regressions fixed:
+- dynamic linker crash on NONE-type relocations (only mips affected)
+- inability to build as thumb2 on arm
+- failure to run under qemu-i386 user-level emulation
+- inability to access globals from libc on powerpc
+- PIE link errors in Scrt1.o under unusual usage on some archs
+
+other bugs fixed:
+- failure of ungetc/ungetwc to work on FILE streams in EOF state
+- possible null pointer dereference in gettext
+- possible initial stack misalignment on mips with PIE
+
+
+
+1.1.11 release notes
+
+new features:
+- byte-based C locale
+- vdso clock_gettime on arm
+- musl-clang wrapper
+- sh2 nommu target support
+
+performance:
+- major speed-up for dynamic linker symbol lookups with GNU hash
+
+compatibility:
+- strverscmp now matches GNU behavior in corner cases
+- empty TZ environment variable gives GMT rather than system default
+- reconnection on syslog server socket loss (syslogd restart)
+- mmap fallback in simple_malloc when brk fails
+- support for %m and %s with null pointers in wide printf variants
+- call frame information in i386 asm for improved debugger support
+
+bugs fixed:
+- spurious errors from pwd/grp functions when nscd backend is absent
+- possible invalid access on calloc with simple_malloc
+- null pointer dereferences after calling uselocale((locale_t)0)
+- erroneous support for cancellation in stdio caused data loss
+- inconsistent handling of atexit called from atexit handler
+- missing locking in error paths for ungetwc
+- btowc mishandling of out-of-range non-EOF inputs
+- negated return value of ns_skiprr, failure in related functions
+- incorrect void return type for syncfs, missing error status
+- possible failure of tempnam due to missing null termination
+- negated tm_gmtoff field in struct tm
+- off-by-one error in getsubopt leaving equals sign in value result
+
+arch-specific bugs fixed:
+- soft deadlocks on i386/x86_64 due to missing barrier in internal locks
+- regression in arm pre-v7 support for kernels with kuser helper removed
+- runaway PC on mips detached thread exit (due to kernel regression)
+- mismatched ABI for local-dynamic model TLS on mips and powerpc
+- incorrect value of some SO_* constants on mips
+- broken 64-bit syscall argument passing on aarch64
+
+
+
+1.1.12 release notes
+
+new features:
+- fdpic abi on sh2 for shareable text segment without mmu
+- general fdpic elf support in dynamic linker
+- CFI generation for x86_64 asm source files
+- protection against silently building a libc.so with missing symbols
+
+compatibility:
+- nl_langinfo(CODESET) now returns "ASCII" in byte-based C locale
+- fixed build regression due to buggy .SECONDARY in some GNU make versions
+- additional arm eabi functions needed by llvm arm backend
+- added format argument attributes to gettext function prototypes
+- static PIE no longer requires linking with -E/-rdynamic
+- eliminated spurious protected-data warnings linking against libc.so
+- avoided spurious fpu asm errors with some armhf toolchains
+
+bugs fixed:
+- fclose of stdin/stdout caused deadlock at exit
+- missing memory barrier in pthread_join
+- open_[w]memstream produced no buffer when no writes took place
+- uninitialized scopeid in address lookups from hosts file and ip literals
+- ip literals for mismatching family (v4 vs v6) were queried as hostnames
+- possible crash on OOM in regcomp
+- incorrect contents in localeconv structure (-1 instead of CHAR_MAX)
+- strftime mishandling of out-of-range struct tm members
+- wrongful attribute((const)) on pthread_self and errno location function
+
+arch-specific bugs fixed:
+- arm crt1 entry point failed to align stack pointer in some cases
+- mips fesetround failed to actually set rounding mode
+- i386 asm source CFI generation had multiple bugs
+
+
+
+1.1.13 release notes
+
+new features:
+- out-of-tree builds
+- search domains in resolv.conf
+- sh arch supports j-core (j2) cas.l atomics
+- dynamic linker includes arch/abi in output when run as a command
+- header support for new kernel features through linux 4.4
+- mips vdso clock_gettime support
+- regex BRE extensions: \|, \+, \?
+
+performance:
+- improved atomics performance on all archs with ll/sc model
+- atomic instructions are now inlined on armv6
+- use fpu sqrt for arm softfp abi on targets with vfp
+
+compatibility:
+- getnameinfo now accepts sockaddr sizes larger than needed
+- new default CFLAGS/LDFLAGS avoid entire classes of toolchain bugs
+- explicit use of float_t/double_t avoids compiler float spill bugs
+- i386 max_align_t definition now works with g++ 4.7's pseudo-c++11
+- all known protocols are added to protoent functions
+- stub utmpname, utmpxname functions
+- linker support for -Bsymbolic-functions is no longer mandatory
+- regex parsing size limits increased
+- malloc_usable_size now accepts null pointer input
+
+bugs fixed:
+- potential single-byte heap overflow in getdelim
+- mishandling of transient failure opening hosts, services, resolv.conf
+- mremap was sometimes able to allocate objects larger than PTRDIFF_MAX
+- nl_langinfo wrongly returned NULL instead of "" for invalid items
+- out-of-bounds dynamic tls allocation due to pointer/index scaling error
+- getifaddrs misreported point-to-point interface addresses
+- tdelete left tsearch trees misbalanced
+- tsearch crashed on allocation failure
+- tsearch, tfind, and tdelete failed to handle null pointer input
+- passing signal number 0 to sigaction resulted in a crash
+- getdelim updated caller's size wrongly when realloc failed
+- getdelim realloc strategy was wasteful
+- if_nametoindex returned wrong value on failure
+- missing ssp-suppression for some source files called from early-init
+- various minor resolv.conf parsing bugs
+- fwrite wrongly reported success on write errors in line-buffered flush
+- fwrite and fread wrongly returned nmemb (not 0) when size was 0
+
+nommu-specific bugs fix:
+- failure to zero bss in FDPIC shared library loader
+- unsafe writes to read-only file mapping in non-FDPIC library loader
+
+arch-specific bugs fixed:
+- sh[eb]-nofpu-fdpic was using fpu-dependent setjmp/longjmp variants
+- dynamic linker path file name was wrong for arm "softfp" targets
+- mips siginfo_t and related macros were defined incorrectly
+- possibly misaligned pointer globals on arm (from an asm source file)
+- mips dynamic linker failed to provide info needed by debugger
+- mips cancellation asm wrongly assumed validity of $gp register value
projects / oweals / musl.git / blobdiff