| 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. (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. |
| |
| 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. |
| |
| 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 |
| |
| |
| |
| 0.7.10 release notes |
| |
| new features: |
| - ipv6 numeric string parsing |
| - eventfd syscall wrappers |
| |
| optimizations: |
| - new qsort implementation using the smoothsort algorithm |
| - much smaller/faster sigset_t handling functions |
| - lowered spin count before futex wait in synchronization functions |
| |
| 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 |
| |
| compiler issue workarounds: |
| - incorrect inlining of variadic functions on recent gcc versions |
| - pcc preprocessor bug with recursive macro expansion |
| |
| |
| |
| 0.7.11 release notes |
| |
| new features: |
| - integrated dynamic linker |
| - dynamic loading (dlopen/dlsym) (for dynamic-linked programs only) |
| - XSI search.h API |
| - POSIX message queues |
| - POSIX spawn interfaces |
| - BSD pseudo-random number generator API (random/srandom/initstate/etc.) |
| - floating point environment (limited usefulness due to gcc bugs) |
| |
| general bug fixes: |
| - possible crashes with wordexp due to uninitialized variable |
| - race condition in pthread_kill (also present and unfixed in glibc/nptl) |
| - pthread exit destructors called too late |
| - dangerous unbounded vla in glob |
| - 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 |
| |
| |
| |
| 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 feastures: |
| - 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 |