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(parent: d5d4200) | patch
Add thread-private flag to indicate that error value is already placed
authorKonstantin Belousov <kib@FreeBSD.org>
Thu, 12 Apr 2012 10:48:43 +0000 (10:48 +0000)
committerKonstantin Belousov <kib@FreeBSD.org>
Thu, 12 Apr 2012 10:48:43 +0000 (10:48 +0000)
commit2dd9ea6f702c2e5791dc34794f285426d6bfb1ca
treeb11cc6ba65a78e38d9da1d9122832b5385fa56c5tree | snapshot
parentd5d42003f434fc2e48622be7ad0154a0a5089c99commit | diff
Add thread-private flag to indicate that error value is already placed
in td_errno. Flag is supposed to be used by syscalls returning
EJUSTRETURN because errno was already placed into the usermode frame
by a call to set_syscall_retval(9). Both ktrace and dtrace get errno
value from td_errno if the flag is set.

Use the flag to fix sigsuspend(2) error return ktrace records.

Requested by: bde
MFC after: 1 week
sys/kern/kern_sig.c diff | blob | history
sys/kern/subr_syscall.c diff | blob | history
sys/sys/proc.h diff | blob | history
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