svn commit: r190840 - head/sys/pc98/pc98

[Takahashi Yoshihiro]

Author: nyan
Date: Wed Apr  8 11:35:47 2009
New Revision: 190840
URL: http://svn.freebsd.org/changeset/base/190840

Log:
  MFi386: revision 190617
  
    Fill the fsbase and gsbase fields of the mcontext structure on i386.

Modified:
  head/sys/pc98/pc98/machdep.c

Modified: head/sys/pc98/pc98/machdep.c
==============================================================================
--- head/sys/pc98/pc98/machdep.c        Wed Apr  8 09:02:42 2009        
(r190839)
+++ head/sys/pc98/pc98/machdep.c        Wed Apr  8 11:35:47 2009        
(r190840)
@@ -525,6 +525,7 @@ sendsig(sig_t catcher, ksiginfo_t *ksi, 
        struct sigacts *psp;
        char *sp;
        struct trapframe *regs;
+       struct segment_descriptor *sdp;
        int sig;
        int oonstack;
 
@@ -561,6 +562,15 @@ sendsig(sig_t catcher, ksiginfo_t *ksi, 
        sf.sf_uc.uc_mcontext.mc_len = sizeof(sf.sf_uc.uc_mcontext); /* magic */
        get_fpcontext(td, &sf.sf_uc.uc_mcontext);
        fpstate_drop(td);
+       /*
+        * Unconditionally fill the fsbase and gsbase into the mcontext.
+        */
+       sdp = &td->td_pcb->pcb_gsd;
+       sf.sf_uc.uc_mcontext.mc_fsbase = sdp->sd_hibase << 24 |
+           sdp->sd_lobase;
+       sdp = &td->td_pcb->pcb_fsd;
+       sf.sf_uc.uc_mcontext.mc_gsbase = sdp->sd_hibase << 24 |
+           sdp->sd_lobase;
 
        /* Allocate space for the signal handler context. */
        if ((td->td_pflags & TDP_ALTSTACK) != 0 && !oonstack &&
@@ -2410,6 +2420,7 @@ int
 get_mcontext(struct thread *td, mcontext_t *mcp, int flags)
 {
        struct trapframe *tp;
+       struct segment_descriptor *sdp;
 
        tp = td->td_frame;
 
@@ -2441,6 +2452,11 @@ get_mcontext(struct thread *td, mcontext
        mcp->mc_ss = tp->tf_ss;
        mcp->mc_len = sizeof(*mcp);
        get_fpcontext(td, mcp);
+       sdp = &td->td_pcb->pcb_gsd;
+       mcp->mc_fsbase = sdp->sd_hibase << 24 | sdp->sd_lobase;
+       sdp = &td->td_pcb->pcb_fsd;
+       mcp->mc_gsbase = sdp->sd_hibase << 24 | sdp->sd_lobase;
+
        return (0);
 }
 
_______________________________________________
svn-src-all@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"