diff options
Diffstat (limited to 'erts/emulator/hipe/hipe_mode_switch.c')
| -rw-r--r-- | erts/emulator/hipe/hipe_mode_switch.c | 51 |
1 files changed, 38 insertions, 13 deletions
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c index e5de244d25..16f8fb1347 100644 --- a/erts/emulator/hipe/hipe_mode_switch.c +++ b/erts/emulator/hipe/hipe_mode_switch.c @@ -1,22 +1,23 @@ /* * %CopyrightBegin% - * - * Copyright Ericsson AB 2001-2009. All Rights Reserved. - * + + * + * Copyright Ericsson AB 2001-2011. All Rights Reserved. + * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in * compliance with the License. You should have received a copy of the * Erlang Public License along with this software. If not, it can be * retrieved online at http://www.erlang.org/. - * + * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See * the License for the specific language governing rights and limitations * under the License. - * + * * %CopyrightEnd% */ -/* $Id$ +/* * hipe_mode_switch.c */ #ifdef HAVE_CONFIG_H @@ -208,6 +209,8 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[]) #endif p->i = NULL; + /* Set current_function to undefined. stdlib hibernate tests rely on it. */ + p->current = NULL; DPRINTF("cmd == %#x (%s)", cmd, code_str(cmd)); HIPE_CHECK_PCB(p); @@ -322,20 +325,31 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[]) * We need to remove the BIF's parameters from the native * stack: to this end hipe_${ARCH}_glue.S stores the BIF's * arity in p->hipe.narity. + * + * If the BIF emptied the stack (typically hibernate), p->hipe.nsp is + * NULL and there is no need to get rid of stacked parameters. */ - unsigned int i, is_recursive, callee_arity; + unsigned int i, is_recursive = 0; /* Save p->arity, then update it with the original BIF's arity. Get rid of any stacked parameters in that call. */ /* XXX: hipe_call_from_native_is_recursive() copies data to reg[], which is useless in the TRAP case. Maybe write a specialised hipe_trap_from_native_is_recursive() later. */ - callee_arity = p->arity; - p->arity = p->hipe.narity; /* caller's arity */ - is_recursive = hipe_call_from_native_is_recursive(p, reg); - - p->i = (Eterm *)(p->def_arg_reg[3]); - p->arity = callee_arity; + if (p->hipe.nsp != NULL) { + unsigned int callee_arity; + callee_arity = p->arity; + p->arity = p->hipe.narity; /* caller's arity */ + is_recursive = hipe_call_from_native_is_recursive(p, reg); + + p->i = (Eterm *)(p->def_arg_reg[3]); + p->arity = callee_arity; + } + + /* If process is in P_WAITING state, we schedule the next process */ + if (p->status == P_WAITING) { + goto do_schedule; + } for (i = 0; i < p->arity; ++i) reg[i] = p->def_arg_reg[i]; @@ -592,6 +606,17 @@ void hipe_inc_nstack(Process *p) } #endif +void hipe_empty_nstack(Process *p) +{ + if (p->hipe.nstack) { + erts_free(ERTS_ALC_T_HIPE, p->hipe.nstack); + } + p->hipe.nstgraylim = NULL; + p->hipe.nsp = NULL; + p->hipe.nstack = NULL; + p->hipe.nstend = NULL; +} + static void hipe_check_nstack(Process *p, unsigned nwords) { while (hipe_nstack_avail(p) < nwords) |