The conversion of FPU tracking to PCU rendered the fpcurlwp variable
unmaintained, which broke FP status info in the COMPAT_LINUX sigcontext. Use the new API, which will at least be closer to correct.
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parent
01b235c952
commit
c1a69249ed
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@ -1,4 +1,4 @@
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/* $NetBSD: linux_machdep.c,v 1.50 2014/11/09 17:48:07 maxv Exp $ */
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/* $NetBSD: linux_machdep.c,v 1.51 2020/09/03 14:26:31 thorpej Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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@ -35,7 +35,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: linux_machdep.c,v 1.50 2014/11/09 17:48:07 maxv Exp $");
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__KERNEL_RCSID(0, "$NetBSD: linux_machdep.c,v 1.51 2020/09/03 14:26:31 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -243,14 +243,11 @@ void setup_linux_sigframe(struct trapframe *tf, const ksiginfo_t *ksi,
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frametoreg(tf, (struct reg *)sigframe.sf_sc.sc_regs);
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sigframe.sf_sc.sc_regs[R_SP] = alpha_pal_rdusp();
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if (l == fpcurlwp) {
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if (fpu_valid_p(l)) {
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struct pcb *pcb = lwp_getpcb(l);
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alpha_pal_wrfen(1);
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savefpstate(&pcb->pcb_fp);
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alpha_pal_wrfen(0);
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fpu_save(l);
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sigframe.sf_sc.sc_fpcr = pcb->pcb_fp.fpr_cr;
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fpcurlwp = NULL;
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}
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/* XXX ownedfp ? etc...? */
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@ -394,9 +391,6 @@ linux_restore_sigcontext(struct lwp *l, struct linux_sigcontext context,
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regtoframe((struct reg *)context.sc_regs, l->l_md.md_tf);
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alpha_pal_wrusp(context.sc_regs[R_SP]);
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if (l == fpcurlwp)
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fpcurlwp = NULL;
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/* Restore fp regs and fpr_cr */
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pcb = lwp_getpcb(l);
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memcpy(&pcb->pcb_fp, (struct fpreg *)context.sc_fpregs,
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