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@@ -1984,3 +1984,55 @@ arch-specfic bugs fixed:
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- on mips, return from start function passed to clone crashed (runaway exec)
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- printf %a precision specifier malfunctioned except on ld80 archs
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- async thread cancellation crashed on powerpc64 and sh-fdpic
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+
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+
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+1.1.21 release notes
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+
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+new features:
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+- setting default thread stack size via PT_GNU_STACK program header
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+- arm vfork implementation
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+- arm tlsdesc/gnu2 tls dialect support
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+- name_to_handle_at and name_to_handle_at syscall wrappers
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+- header-level support for new linux features through 4.18
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+
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+optimizations:
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+- glob rewrite with much better performance and stack usage properties
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+- single-threaded and already-locked fast paths for getc/putc variants
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+- single-instruction fma implementations for arm, s390x, powerpc, & x86_64
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+- single-instruction fabs and sqrt implementations for powerpc
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+- size and performance from making all internal-only functions/data hidden
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+- made &errno and pthread_self results cachable again (attribute((const)))
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+- significant speedup in strtod with short inputs
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+- new tsearch AVL tree implementation, smaller and faster
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+- special-cased nop calls to wmemmove
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+- fixed erroneously suboptimal skip conditions in strstr and memmem
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+
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+hardening:
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+- default thread stack guard size increased from 4k to 8k
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+
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+compatibility:
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+- default thread stack size increased from 80k to 128k
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+- building for arm as thumb2 with clang internal assembler now works
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+- aio threads could overflow stack on kernels that break MINSIGSTKSZ ABI
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+- aio threads no longer call malloc (problematic with malloc replacement)
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+- pthread_sigmask/sigprocmask now ignore an invalid how when not changing mask
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+
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+bugs fixed:
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+- soft deadlock regression in stdio FILE locks with >2 threads contending
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+- deadlock and buffered data loss race in fclose
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+- race condition leading to possible crash in dcngettext plural forms
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+- glob failed to see past searchable-but-unreadable path components
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+- getdelim wrongly realloc'd buffer that was already exactly right size
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+- getdelim failed to set stream orientation on early error
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+- ttyname[_r] reported wrong error when given bad fd
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+- pthread_key_delete left old tsd values exposed if slot was reused
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+- freeaddrinfo failed to support freeing sublists
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+- access to optopt was broken by copy relocations
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+- memccpy returned wrong result if first byte past buffer end matched
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+- wordexp read past end of input string ending in backslash
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+- sem_wait and sem_timedwait were wrongly not interruptible by signals
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+- getspnam[_r] wrongly treated not-found as an error
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+
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+arch-specfic bugs fixed:
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+- soft deadlocks (missing futex wake) on powerpc locking
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+- dlsym returned wrong address for thread-local symbols on ppc/mips/m68k
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Rich Felker