Takashi Yano c607889824 Cygwin: sigfe: Fix a bug that signal handler destroys fpu states ...

Previously, sigfe had a bug that the signal handler destroys fpu state.
This is caused by fninit instruction in sigdelayed. With this patch,
saving/restoring the FPU/SIMD state is done using fxsave/fxrstor or
xsave/xrstor rather than fnstcw/fldcw, stmxcsr/ldmxcsr and push/pop
xmm0-xmm15. Since xsave/xrstor is used, not only x87/MMX/SSE states
but also AVX/AVX2/AVX-512 states can be maintained unlike before.
Addresses: https://cygwin.com/pipermail/cygwin/2024-October/256503.html

Fixes: ed89fbc3ff11 ("* gendef (sigdelayed (x86_64)): Save and restore FPU control word.")
Reported-by: Christian Franke <Christian.Franke@t-online.de>
Suggested-by: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>

2024-11-01 04:56:27 +09:00

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Cygwin: add "app execution aliases" treatment to release notes

2021-03-23 16:54:41 +01:00

3.3.0

Cygwin: convert malloc lock to SRWLOCK

2021-10-26 18:47:22 +02:00

3.3.2

Cygwin: pipe: Avoid false EOF while reading output of C# programs.

2021-11-08 11:06:58 +01:00

3.3.3

Cygwin: Fix release note 3.3.3.

2021-11-23 01:19:56 +09:00

3.3.4

Cygwin: select: don't report read ready on a FIFO never opened for writing

2022-10-19 08:17:50 -04:00

3.3.5

Cygwin: Fix "0x0x" in gmondump and ssp man pages

2022-04-27 11:40:09 +02:00

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newlocale: fix crash when trying to write to __C_locale

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3.4.0

Cygwin: add release message for commit previous commit 8d138c3f66c2

2022-12-03 16:36:49 +01:00

3.4.1

Cygwin: pipe: Fix performance degradation for non-cygwin pipe.

2022-12-09 21:01:29 +09:00

3.4.2

Cygwin: add 3.4.2 release notes

2022-12-11 11:45:36 +01:00

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Cygwin: Update 3.4.3 release note

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Cygwin: open_shared: try harder allocating a shared region

2023-01-17 18:41:10 +01:00

3.4.5

Cygwin: Add 3.4.5 release message

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3.4.6

Cygwin: chmod: don't drop default ACEs from directory ACLs

2023-02-09 21:58:20 +01:00

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Cygwin: Fix latest release message being in the wrong release file.

2023-07-04 16:50:37 +02:00

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Cygwin: shared: Fix access permissions setting in open_shared().

2023-08-16 22:11:17 +09:00

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Cygwin: document latest sys/cpuset.h fix

2023-09-01 12:42:10 +02:00

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Cygwin: open(2): reset sparseness on O_TRUNCated files

2023-11-28 10:55:33 +01:00

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Cygwin: fix arc4random after fork(2)

2024-01-29 13:43:36 +01:00

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Cygwin: add release text for getgrent local SAM enumeration patch

2024-02-26 15:56:10 +01:00

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Revert "Cygwin: glob: perform ignore_case_with_glob on input"

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Cygwin: add a fake 3.5.3 release file

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Cygwin: add release message for latest pipe changes

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3.5.5

Cygwin: console: Inherit pcon hand over from parent pty

2024-10-31 15:34:56 +09:00

3.6.0

Cygwin: sigfe: Fix a bug that signal handler destroys fpu states

2024-11-01 04:56:27 +09:00