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@@ -2236,3 +2236,54 @@ arch-specific bugs fixed:
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- mips* had negated error codes for some syscalls (kernel bug)
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- mips* SIGEMT was wrongly called SIGSTKFLT
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- sh fesetround didn't work correctly on sh
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+
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+
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+
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+1.2.2 release notes
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+
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+major changes:
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+- child restrictions lifted after fork of multithreaded parent
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+
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+new features:
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+- _Fork function (POSIX-future)
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+- reallocarray function (extension from OpenBSD, now widespread)
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+- gettid function (kernel tid as supported concept)
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+- SIGEV_THREAD_ID sigevent API (Linux extension)
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+- tcgetwinsize and tcsetwinsize functions (POSIX-future)
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+
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+performance:
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+- faster software sqrt on archs without native sqrt instruction
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+
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+compatibility:
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+- realpath no longer depends on procfs availability & accuracy
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+- time zone parser now always prefers 64-bit tables if present
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+- crypt_blowfish now supports $2b$ prefix
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+- res_query now reports errors via h_errno
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+- set*id and setrlimit are now safe in vforked/cloned child
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+- setgroups now applies to all threads
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+- dlopen debugger notification is improved, should work with lldb
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+- setrlimit no longer needs __synccall broadcast on linux 2.6.36+
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+- faccessat with AT_EACCESS no longer needs child process on linux 5.8+
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+
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+bugs fixed:
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+- buffer overflow and infinite loop errors in wcsnrtombs (CVE-2020-28928)
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+- sem_close unmapped still-referenced semaphores
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+- fork of process with active aio could deadlock or crash paren
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+- pthread_cond_wait was broken with priority-inheritance mutex
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+- getgrouplist wrongly failed when nscd reported an empty list
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+- abort could leak modified SIGABRT disposition to fork or posix_spawn child
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+- regression with mallocng: malloc_usable_size(0) crashed
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+- readlink wrongly gave EINVAL on zero length dest buffer
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+- sqrtl was severely inaccurate (not correctly rounded) on ldquad archs
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+- assert failure wrongly flushed stdio (possible deadlock)
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+- MUSL_LOCPATH search was broken with multiple components
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+- missing newline in herror output
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+- possible deadlock in pthread_exit with pshared mutex or barrier usage
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+- pthread_mutexattr_getprotocol didn't read back protocol
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+- v4l2 ioctl translation for pre-time64 kernels didn't work
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+
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+arch-specific bugs fixed:
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+- x86_64 longjmp failed to handle 0 argument reliably
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+- i386 __set_thread_area fallback for pre-2.6 kernels didn't work
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+- missing O_LARGEFILE macro value on x86_64, x32, mips64
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+- unpredictable s390x breakage from failure to preserve call-saved registers
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Rich Felker