- brk/sbrk legacy functions mismatching legacy semantics
- wcsncpy dest buffer overflow
- strncat and wcsncat possible overflows due to double-termination
+
+
+
+0.7.12 release notes
+
+new features:
+- support for textrels in shared objects
+- rpath support in dynamic linker
+- stdio_ext.h functions (for better gnu software compatibility)
+
+bug fixes:
+- some compilers miscompiling dlopen due to misuse of longjmp
+- safe handling of invalid long-double bit patterns (affects printf)
+- workaround for bugs in linux mprotect syscall
+- thread-safety for random() functions
+- various minor issues
+
+
+
+0.8.0 release notes
+
+new features:
+- chinese and japanese legacy charset support in iconv
+- zero-syscall clock_gettime support (dynamic-linked x86_64 only)
+- futex-based locking for stdio (previously used spinlocks)
+- LD_PRELOAD and RTLD_NEXT support in dynamic linker
+- strptime (mostly working but incomplete)
+- posix aio (mostly working but not entirely conformant)
+- memory streams (fmemopen, open_memstream, ...)
+- stub/dummy implementations for various useless legacy functions
+- if_nameindex
+
+security hardening:
+- setuid, etc. should not longer be able to "partially fail" with threads
+- ensure suid programs start with fd 0,1,2 open
+- improved openpty/forkpty failure checks
+
+threads/synchronization bug fixes:
+- dangerous spurious wakeup in pthread_join lead to early return
+- race condition enabling async cancellation (delayed/lost cancellation)
+- destruction/unmapping race conditions in semaphores, mutexes, rwlocks
+- recursive rwlock_rdlock deadlock when a writer is waiting
+- race condition in sigqueue with fork
+- timer expiration thread exit wasn't running dtors
+- timer threads weren't blocking signals
+- close was wrongly cancellable after succeeding on some devices
+- robust mutex list was not reset on fork
+
+general bug fixes:
+- incorrect logic in fread (spurious blocking; crash on write-only files)
+- many corner cases and overflow cases for strtol-family functions
+- various printf integer formatting issues with flags/width/precision
+- incorrect iconv return value on failure
+- broken FD_* macros on 64-bit targets
+- clock function returning wrong value (real time not cpu time)
+- siglongjmp signal mask clobbering (off-by-one pointer error)
+- dynamic linker weak symbol resolution issues
+- fdopendir failure to set errno
+- various minor header fixes
+
+
+
+0.8.1 release notes
+
+bug fixes:
+- mismatching prototypes caused build failure on 64-bit
+- other minor prototype errors in the headers have been fixed
+- various other small omissions fixed
+
+
+
+0.8.2 release notes
+
+new features:
+- ptrace syscall support
+
+bug fixes:
+- const error (only a warning with many compilers) in lio_listio
+- minor portability fixes aimed at supporting new arch targets
+
+
+
+0.8.3 release notes
+
+new features:
+- arm port (experimental)
+- better musl-gcc wrapper script for building against musl
+- added clone system call
+
+bug fixes:
+- numerous header file typos, copy/paste errors, omissions
+- statfs and statvfs ABI are now LSB-conformant (and actually work)
+
+
+
+0.8.4 release notes
+
+new features:
+- arm dynamic linker support
+- process-shared pthread barriers now work
+- efficient futex-requeue-based cond var broadcast
+- more optional cancellation points are now cancellable
+- printf accepts null pointers with %s, prints as "(null)"
+- recursive mutexes are now fully reentrant
+- __cxa_atexit support
+- real vfork
+- dynamic linker now gold-compatible
+- prlimit syscall
+- support for large limits with setrlimit/getrlimit (even on 32-bit)
+- glob now supports GLOB_PERIOD option (GNU extension)
+
+bug fixes:
+- many serious issues in condition variables
+- rwlock failure-to-wake deadlock issues
+- various small header files bugs/omissions
+- wrong failure return for pthread_create
+- path handling issues on execvp
+- lock count corruption with robust recursive mutexes on owner death
+- integer overflows in atoi, etc. reading most-negative value
+- spurious mremaps on every realloc of large memory chunks
+- pthread cancellation failure in single-threaded programs
+
+security:
+- avoid fd_set overflow in dns lookups
+
+
+
+0.8.5 release notes
+
+new features:
+- stdio operations are now cancellable (only when low-level io happens)
+- global ctor/dtor support in main program start code and shared libs
+- dynamic linker support for PIE executables (but missing startup code)
+- vfork support on x86_64
+- complete set of locale_t functions (all ignore the locale argument)
+- provide define float_t and double_t in math.h
+- lighter/faster cancellation cleanup handler register/unregister
+
+bug fixes:
+- gcc wrapper now supports -shared, -nostdlib, -nostartfiles
+- removed one wrongly-classified character from iswspace set (zwsp)
+- fixed crashes in dns lookup on some errors, e.g. resolv.conf missing
+- "make install" no longer tries to build shared libc if disabled
+- ptrace argument handling bugs fixed
+- work around visibility-hidden bugs in gcc 3.x
+- fix thread-pointer-loss issue when it's initialized in signal handlers
+- various minor typo/misc fixes in headers
+
+compatibility:
+- glob behaves more like traditional implementations w.r.t. GLOB_MARK
+- added legacy futimes, lutimes functions
+- more compatibility macros in sys/param.h (nonstandard header)
+- setfs[ug]id syscall wrappers (linux specific)
+- fgetpwent function (nonstandard)
+- utmp.h matches traditional version more closely
+- caddr_t now matches glibc type (void * instead of long)
+- dummy (always-fail) dlopen and dlsym functions for static linked programs
+- [efg]cvt functions (previously posix, removed from standard)
+- get_current_dir_name function (nonstandard)
+
+
+
+0.8.6 release notes
+
+bug fixes:
+- fix crash in dns lookups for all static-linked, non-threaded programs
+
+
+
+0.8.7 release notes
+
+new features:
+- c++ support with g++'s libstdc++
+- c99 math library (float, long double, complex, etc.)
+- numerous wchar_t functions
+- a64l, l64a functions
+- getdate function
+
+compatibility:
+- c89 compatibility in math.h
+- syscall.h alias for sys/syscall.h
+- memory.h alias for string.h
+- getcwd supports null buffer argument (auto-allocation)
+
+bug fixes:
+- major fenv (floating point environment) fixes and optimizations
+- strptime mishandling of day/month names
+- strtoull wrongly rejecting the highest 16 possible values as overflow
+- math.h constant expression fixes for INFINITY/NAN/etc.
+- scanf mishandling of "0" with "%x"
+
+
+
+0.8.8 release notes
+
+new feature:
+- major math correctness and performance improvements
+- many math functions implemented in asm for i386
+- some math functions (mostly long double) in asm for x86_64
+- new floating point parser/converter with correct rounding
+- implement wcstod, wcstof, and wcstold
+- new scanf implementation - cleaner, faster, more correct
+- minimal/incomplete strfmon implementation
+
+compatibility:
+- header fixes for c++
+- regex code resync with TRE; support common regex extensions
+- support for compiling apps with gcc's -funsigned-char
+- sysconf now returns dynamic limits for open files, processes
+- give dlerror proper error status stickiness
+- make alloca work even with -fno-builtin
+
+critical security fixes:
+- stack-based buffer overflow in fprintf on unbuffered files
+
+other bug fixes:
+- rare gcc register allocation (miscompilation) bug in syscall wrappers
+- printf was rejecting the valid (but redundant) %lf format specifier
+- fixed big data bloat (missing const) in math functions
+- many math fixes related to floating point exceptions and rounding
+- corrected DECIMAL_DIG definitions
+- tgammal was wrongly setting global signgam
+- crash in wordfree with uninitialized we_offs
+- fix wordexp not null-initializing the we_offs initial slots
+
+
+
+0.8.9 release notes
+
+bug fixes:
+- major breakage in strtol and family: failure to accept leading spaces
+- incorrect name for MATH_ERREXCEPT in math.h
+
+compatibility:
+- prototypes for a few additional nonstandard functions
+
+
+
+0.8.10 release notes
+
+new features:
+- correct over/underflow detection (ERANGE setting) for strtod
+- new musl-gcc wrapper, specfile based, faster and more robust
+- meaningful return strings for dlerror
+- new iswalpha, iswpunct, and wcwidth; sync'd to Unicode 6.1
+- towupper/towlower sync'd with Unicode 6.1
+- new futex-based libc-internal locks instead of spinlocks
+- experimental stack protector support (minimal; no random canary)
+- experimental gdb shared library tracking support
+
+compatibility:
+- getusershell family functions
+- getresuid and getresgid syscall wrappers
+- byte swapping macros in endian.h
+- getdtablesize was wrongly declared in unistd.h for _XOPEN_SOURCE
+
+bug fixes:
+- iconv_open wrongly rejecting most dest charsets (broken in 0.8.0)
+- sysconf failure when correct value is -1 (broken in 0.8.8)
+- scanf and strtod family functions overreading past NAN (4 bytes vs 3)
+- scanf and strtod wrongly treating "0.00000000001", etc. as 0
+- many bugs in towupper/towlower (never seriously tested before)
+- int8_t definition was wrong when gcc -funsigned-char was used
+
+
+
+0.9.0 release notes
+
+license change: MIT
+
+new features:
+- configure script, improved build system
+- full stack protector support
+- PIE support on x86 and x86_64
+- new O(1) space, O(nm) time implementation of fnmatch
+- improved support for sse2 floating point mode on x86
+
+compatibility:
+- added linux unshare syscall
+- exp10/pow10 function
+- sqrtl support on arm (previously missing)
+- removed minimal linux/*.h headers that could conflict with real ones
+- support for _LARGEFILE64_SOURCE (mapped to standard fcns with #define)
+- better c89 compatibility in headers
+- stub versions of sched_* functions (previously missing)
+- pthread stacks no longer executable (compat with hardened kernels)
+- new ar.h and lastlog.h (legacy junk)
+- various other header improvements
+
+optimization:
+- additional x86_64 math asm
+- better formula for acos use in i386 asm
+
+bug fixes:
+- large (up to a few %) errors in strtod for certain values due to bug
+- mbsnrtowcs and wcsnrtombs were completely broken (bad exit logic)
+- wide printf %.0s could fail due to uninitialized variable
+- missing dlerror strings for dlsym in some cases
+
+
+
+0.9.1 release notes
+
+new features:
+- dynamic linker can be used as a program to explicitly load/run executables
+- ldd command, usable by making a symlink to the dynamic linker named ldd
+
+bug fixes:
+- major bugs in POSIX BRE parsing inherited from TRE regex code
+- character matching bug in regex on ARM: WCHAR_MAX was assumed to be signed
+- various obscure fixes related to signals and pthread cancellation
+- remquot subnormal remainder bug
+- buggy macros in (nonstandard) sys/param.h
+- major bug in pthread barriers on x86_64 (out of bounds write)
+- utimes (legacy) function was making wrong syscall (utime instead of utimes)
+- avoid using "old" syscalls that don't exist on arm eabi linux
+- broken strrchr(str, 0)
+- broken mbsinit(0)
+- broken wcsncmp
+- syntax error in nextafter macro in tgmath.h
+- missing support for -pie in musl-gcc wrapper
+- abort could wrongly fail to terminate the program in some cases
+
+compatibility:
+- increase default thread stack size to 80k
+- support _BSD_SOURCE feature test macro
+- support _LARGEFILE64_SOURCE feature test macro (merely exposes alt names)
+- lots of legacy-compatibility improvements in headers
+- various minor GNU extension functions
+- sysconf reporting number of available CPUs/cores
+- various LSB/glibc ABI interfaces aimed at compatibility with some binaries
+- use fistpll asm mnemonic instead of fistpq for compat with clang
+
+
+
+0.9.2 release notes
+
+bug fixes:
+- pointer overflow in printf (crash on 32bit userspace, 64bit kernel)
+- printf %ls over-read bug
+- strtod failure to read -0x as negative zero
+- flush stdio after dtors, not before
+- wrong file position for buffered input streams on exit
+- popen was broken when stdin/out were already closed
+- broken wcwidth tables (missing many characters)
+- fwrite: wrong return value of partial/failed write
+- broken utf-16 conversions
+- bad buffer length check in getlogin_r
+- bad perror("") behavior; did not match perror(0)
+- broken sysinfo syscall/structure
+- stdint.h const macro signedness bugs
+- broken include guards in some headers
+- bogus localeconv values
+- cancellation-safety for popen and pclose
+- fma corner cases wrong on i386
+- fcntl F_GETOWN errno missing on failure.
+- char signedness bug in dynamic linker broke dlopen on arm
+- mprotect failure in dynamic linker caused crash instead of error
+
+build system:
+- configure check to work around hacked-up gcc versions
+- test for old binutils that can't support musl dynamic linker
+
+compatibility:
+- make _GNU_SOURCE imply _LARGEFILE64_SOURCE
+- syscall wrapper for lots of nonstandard and/or legacy linux syscalls
+- versionsort stub
+- timegm function (inverse of gmtime)
+- various minor header tweaks
+- make __freading/__fwriting semantics match traditional ones
+- added gnulib-compatibility stdio interfaces
+- added pthread_attr_setstack interface
+- make strerror_r return partial string when buffer is too small
+- duplocale should accept LC_GLOBAL_LOCALE
+- align ptsname_r to upcoming posix requirements
+- support invalid ld80 bit patterns as extra nans.
+
+
+
+0.9.3 release notes
+
+new features:
+- mips (32-bit, o32 abi) port, currently static-linked only
+- newly overhauled crypt implementation
+- improved library pathname info for debugger from the dynamic linker
+- getaddrinfo (and getservbyname) now support /etc/services lookups
+- pipe2 syscall wrapper
+- splice and vmsplice syscall wrappers
+- syscall wrappers for extended attribute interfaces
+- ioperm/iopl syscall wrappers on archs that support these operations
+
+bug fixes:
+- dlsym RTLD_NEXT library search order was wrong
+- multiple dlopen pathname and library name handling errors
+- potential race condition in detached thread exit
+- broken internal-lock-handling code not updated for futex-based __lock
+- sem_trywait spurious EAGAIN errors arising from CAS failures
+- workaround kernel bug in cmsghdr size_t vs socklen_t issue (64-bit)
+- getservby* crash on null protocol argument
+- logic error skipping failed interfaces in if_nameindex
+- various minor header/declaration related issues
+
+arm-specific bug fixes:
+- broken crti/crtn startup code when gcc crtbegin/end files are linked
+- sigsetjmp tail call optimization failure broke the function
+- incorrect little-endian assumptions in atomic.h functions
+- use of blx instruction in asm (not supported on pre-v5 arm)
+
+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
projects / musl / blobdiff