diff options
| author | obrien <obrien@FreeBSD.org> | 2004-01-05 00:29:00 +0000 |
|---|---|---|
| committer | obrien <obrien@FreeBSD.org> | 2004-01-05 00:29:00 +0000 |
| commit | fae4c97a55eb3fc444c2267f0f0e505a2b0d5f62 (patch) | |
| tree | d6d22c75336ac8fd3a00080ddfb2fe5a4c28970e /sys/i386/svr4 | |
| parent | 84dcced1d556488335591b4c3fab4b873b25b450 (diff) | |
| download | FreeBSD-src-fae4c97a55eb3fc444c2267f0f0e505a2b0d5f62.zip FreeBSD-src-fae4c97a55eb3fc444c2267f0f0e505a2b0d5f62.tar.gz | |
Attempt to make the proper changes here for the proc.h commit:
Make sigaltstack as per-threaded, because per-process sigaltstack state
is useless for threaded programs, multiple threads can not share same
stack.
The alternative signal stack is private for thread, no lock is needed,
the orignal P_ALTSTACK is now moved into td_pflags and renamed to
TDP_ALTSTACK.
For single thread or Linux clone() based threaded program, there is no
semantic changed, because those programs only have one kernel thread
in every process.
which left out SVR4 bits.
Diffstat (limited to 'sys/i386/svr4')
| -rw-r--r-- | sys/i386/svr4/svr4_machdep.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/sys/i386/svr4/svr4_machdep.c b/sys/i386/svr4/svr4_machdep.c index a800b43..91ad9d3 100644 --- a/sys/i386/svr4/svr4_machdep.c +++ b/sys/i386/svr4/svr4_machdep.c @@ -206,7 +206,7 @@ svr4_setcontext(td, uc) #if defined(DONE_MORE_SIGALTSTACK_WORK) psp = p->p_sigacts; #endif - sf = &p->p_sigstk; + sf = &td->td_sigstk; /* * XXX: @@ -437,11 +437,11 @@ svr4_sendsig(catcher, sig, mask, code) /* * Allocate space for the signal handler context. */ - if ((p->p_flag & P_ALTSTACK) && !oonstack && + if ((td->td_pflags & TDP_ALTSTACK) && !oonstack && SIGISMEMBER(psp->ps_sigonstack, sig)) { - fp = (struct svr4_sigframe *)(p->p_sigstk.ss_sp + - p->p_sigstk.ss_size - sizeof(struct svr4_sigframe)); - p->p_sigstk.ss_flags |= SS_ONSTACK; + fp = (struct svr4_sigframe *)(td->td_sigstk.ss_sp + + td->td_sigstk.ss_size - sizeof(struct svr4_sigframe)); + td->td_sigstk.ss_flags |= SS_ONSTACK; } else { fp = (struct svr4_sigframe *)tf->tf_esp - 1; } |
