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(_hurd_setup_sighandler): Copy TS to SCP all at once.

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This commit is contained in:
Roland McGrath 1994-08-03 01:38:43 +00:00
parent b6cc520764
commit 8d2f85c668
1 changed files with 5 additions and 18 deletions
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23
sysdeps/mach/hurd/mips/trampoline.c
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@ -48,6 +48,8 @@ _hurd_setup_sighandler (int flags,
{ {
sigsp = sigaltstack->ss_sp + sigaltstack->ss_size; sigsp = sigaltstack->ss_sp + sigaltstack->ss_size;
sigaltstack->ss_flags |= SA_ONSTACK; sigaltstack->ss_flags |= SA_ONSTACK;
/* XXX need to set up base of new stack for
per-thread variables, cthreads. */
} }
else else
sigsp = (char *) ts->r29; sigsp = (char *) ts->r29;
@ -61,24 +63,9 @@ _hurd_setup_sighandler (int flags,
scp->sc_onstack = sigaltstack->ss_flags & SA_ONSTACK ? 1 : 0; scp->sc_onstack = sigaltstack->ss_flags & SA_ONSTACK ? 1 : 0;
scp->sc_gpr[2] = ts->r2; /* struct sigcontext is laid out so that starting at sc_gpr
scp->sc_gpr[16] = ts->r16; mimics a struct mips_thread_state. */
scp->sc_gpr[17] = ts->r17; memcpy (scp->sc_gpr, &ts, sizeof ts);
scp->sc_gpr[18] = ts->r18;
scp->sc_gpr[19] = ts->r19;
scp->sc_gpr[20] = ts->r20;
scp->sc_gpr[21] = ts->r21;
scp->sc_gpr[22] = ts->r22;
scp->sc_gpr[23] = ts->r23;
scp->sc_gpr[28] = ts->r28;
scp->sc_gpr[31] = ts->r31;
scp->sc_mdlo = ts->mdlo;
scp->sc_mdhi = ts->mdhi;
scp->sc_pc = ts->pc;
scp->sc_sp = ts->r29;
scp->sc_fp = ts->r30;
/* Modify the thread state to call `trampoline' on the new stack. */ /* Modify the thread state to call `trampoline' on the new stack. */