X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=WHATSNEW;h=b46e9ae15841a633f53f50fe66d9738654b4f338;hb=0705fe93566fca735bf0df155f71641df02fc273;hp=dad17d6eda36e722ca4ec82a6bdbe09496e9b511;hpb=4fb273bd4002b37d7e149e077974bc22e2bc4e26;p=musl diff --git a/WHATSNEW b/WHATSNEW index dad17d6e..b46e9ae1 100644 --- a/WHATSNEW +++ b/WHATSNEW @@ -1984,3 +1984,134 @@ arch-specfic bugs fixed: - on mips, return from start function passed to clone crashed (runaway exec) - printf %a precision specifier malfunctioned except on ld80 archs - async thread cancellation crashed on powerpc64 and sh-fdpic + + +1.1.21 release notes + +new features: +- setting default thread stack size via PT_GNU_STACK program header +- arm vfork implementation +- arm tlsdesc/gnu2 tls dialect support +- name_to_handle_at and name_to_handle_at syscall wrappers +- header-level support for new linux features through 4.18 + +optimizations: +- glob rewrite with much better performance and stack usage properties +- single-threaded and already-locked fast paths for getc/putc variants +- single-instruction fma implementations for arm, s390x, powerpc, & x86_64 +- single-instruction fabs and sqrt implementations for powerpc +- size and performance from making all internal-only functions/data hidden +- made &errno and pthread_self results cachable again (attribute((const))) +- significant speedup in strtod with short inputs +- new tsearch AVL tree implementation, smaller and faster +- special-cased nop calls to wmemmove +- fixed erroneously suboptimal skip conditions in strstr and memmem + +hardening: +- default thread stack guard size increased from 4k to 8k + +compatibility: +- default thread stack size increased from 80k to 128k +- building for arm as thumb2 with clang internal assembler now works +- aio threads could overflow stack on kernels that break MINSIGSTKSZ ABI +- aio threads no longer call malloc (problematic with malloc replacement) +- pthread_sigmask/sigprocmask now ignore an invalid how when not changing mask + +bugs fixed: +- soft deadlock regression in stdio FILE locks with >2 threads contending +- deadlock and buffered data loss race in fclose +- race condition leading to possible crash in dcngettext plural forms +- glob failed to see past searchable-but-unreadable path components +- getdelim wrongly realloc'd buffer that was already exactly right size +- getdelim failed to set stream orientation on early error +- ttyname[_r] reported wrong error when given bad fd +- pthread_key_delete left old tsd values exposed if slot was reused +- freeaddrinfo failed to support freeing sublists +- access to optopt was broken by copy relocations +- memccpy returned wrong result if first byte past buffer end matched +- wordexp read past end of input string ending in backslash +- sem_wait and sem_timedwait were wrongly not interruptible by signals +- getspnam[_r] wrongly treated not-found as an error + +arch-specfic bugs fixed: +- soft deadlocks (missing futex wake) on powerpc locking +- dlsym returned wrong address for thread-local symbols on ppc/mips/m68k + + +1.1.22 release notes + +new features: +- priority-inheritance mutexes +- membarrier syscall, pre-registration to use it, fallback emulation +- header-level support for new linux features in 4.19, 4.20, 5.0 + +major internal changes: +- complete, async-safe view of all existent threads as global list +- robust __synccall based on new thread list +- new dynamic TLS is installed synchronously at dlopen +- TLSDESC resolver functions no longer make bad ABI assumptions to call C +- resolved shared library dependencies are now recorded + +compatibility & conformance: +- dependency-order shared library constructor execution +- sigaltstack no longer rejects SS_AUTODISARM, future flags +- FILE is now a complete (dummy) type in pre-C11 feature profiles +- setvbuf reports failure on invalid arguments +- TSVTX is exposed unconditionally in tar.h +- multithreaded set*id() no longer depends on /proc +- key slot reuse after pthread_key_delete no longer depends on /proc + +bugs fixed: +- failures in multithreaded set*id() with concurrent thread creation/exit +- interposed free was called from invalid/inconsistent contexts +- freeaddrinfo performed invalid free of some partial results lists +- dlsym dependency order search had false negatives and false positives +- dn_skipname gave wrong results for labels with 8-bit content +- dcngettext clobbered errno, often breaking printing of error messages +- sscanf read past end of buffer under certain conditions (1.1.21 regression) +- pthread_key_create spuriously failed under race condition (1.1.21 regression) +- fdopendir wrongly succeeded with O_PATH file descriptors +- gets behaved incorrectly in presence of null bytes +- namespace violations in c11 tsd and mutex function dependencies +- incorrect prototype for makecontext (unimplemented) + +arch-specfic bugs fixed: +- s390x had wrong values for POSIX_FADV_DONTNEED/_NOREUSE + + + +1.1.23 release notes + +new features: +- riscv64 port +- configure now allows customizing AR and RANLIB vars +- header-level support for new linux features in 5.1 + +major internal changes: +- removed extern __syscall; syscall header code is now fully self-contained + +performance: +- new math library implementation for log/exp/pow +- aarch64 dynamic tlsdesc function is streamlined + +compatibility & conformance: +- O_TTY_INIT is now defined +- sys/types.h no longer pollutes namespace with sys/sysmacros.h in any profile +- powerpc asm is now compatible with clang internal assembler + +changes for new POSIX interpretations: +- fgetwc now sets stream error indicator on encoding errors +- fmemopen no longer rejects 0 size + +bugs fixed: +- static TLS for shared libraries was allocated wrong on "Variant I" archs +- crash in dladdr reading through uninitialized pointer on non-match +- sigaltstack wrongly errored out on invalid ss_size when doing SS_DISABLE +- getdents function misbehaved with buffer length larger than INT_MAX +- set*id could deadlock after fork from multithreaded process + +arch-specfic bugs fixed: +- s390x SO_PEERSEC definition was wrong +- passing of 64-bit syscall arguments was broken on microblaze +- posix_fadvise was broken on mips due to missing 7-arg syscall support +- vrregset_t layout and member naming was wrong on powerpc64