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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2001-2016. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
/*
* hipe_mode_switch.h
*/
#ifndef HIPE_MODE_SWITCH_H
#define HIPE_MODE_SWITCH_H
/* command codes for beam_emu -> hipe_mode_switch() call */
#define HIPE_MODE_SWITCH_CMD_CALL 0
#define HIPE_MODE_SWITCH_CMD_RETURN 1
#define HIPE_MODE_SWITCH_CMD_THROW 2
#define HIPE_MODE_SWITCH_CMD_RESUME 3
/* result codes for beam_emu <- hipe_mode_switch() return */
#define HIPE_MODE_SWITCH_RES_RETURN 4
#define HIPE_MODE_SWITCH_RES_CALL_EXPORTED 5
#define HIPE_MODE_SWITCH_RES_THROW 6
/* additional result codes for hipe_mode_switch() <- native return */
#define HIPE_MODE_SWITCH_RES_SUSPEND 7
#define HIPE_MODE_SWITCH_RES_WAIT 8
#define HIPE_MODE_SWITCH_RES_WAIT_TIMEOUT 9
#define HIPE_MODE_SWITCH_RES_TRAP 10
#define HIPE_MODE_SWITCH_CMD_CALL_CLOSURE 11 /* BEAM -> mode_switch */
#define HIPE_MODE_SWITCH_RES_CALL_CLOSURE 12 /* mode_switch <- native */
#define HIPE_MODE_SWITCH_RES_APPLY 13 /* mode_switch <- native */
#define HIPE_MODE_SWITCH_RES_CALL_BEAM 14
#ifndef ASM
#include "error.h"
extern int hipe_modeswitch_debug;
void hipe_mode_switch_init(void);
void hipe_set_call_trap(Uint *bfun, void *nfun, int is_closure);
Process *hipe_mode_switch(Process*, unsigned, Eterm*);
void hipe_inc_nstack(Process *p);
void hipe_empty_nstack(Process *p);
void hipe_set_closure_stub(ErlFunEntry *fe, unsigned num_free);
Eterm hipe_build_stacktrace(Process *p, struct StackTrace *s);
ERTS_GLB_INLINE void hipe_reserve_beam_trap_frame(Process*, Eterm reg[], unsigned arity);
ERTS_GLB_INLINE void hipe_unreserve_beam_trap_frame(Process*);
ERTS_GLB_INLINE int hipe_is_ra_mode_switch(const void* ra);
extern Uint hipe_beam_pc_return[];
extern Uint hipe_beam_pc_throw[];
extern Uint hipe_beam_pc_resume[];
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
#include "erl_gc.h"
#include "hipe_stack.h"
#if defined(__sparc__)
#include "hipe_sparc_glue.h"
#elif defined(__i386__)
#include "hipe_x86_glue.h"
#elif defined(__x86_64__)
#include "hipe_amd64_glue.h"
#elif defined(__powerpc__) || defined(__ppc__) || defined(__powerpc64__)
#include "hipe_ppc_glue.h"
#elif defined(__arm__)
#include "hipe_arm_glue.h"
#endif
extern Eterm hipe_beam_catch_throw;
ERTS_GLB_INLINE void hipe_reserve_beam_trap_frame(Process *p, Eterm reg[], unsigned arity)
{
if (!hipe_bifcall_from_native_is_recursive(p))
return;
/* ensure that at least 2 words are available on the BEAM stack */
if ((p->stop - 2) < p->htop) {
erts_garbage_collect(p, 2, reg, arity);
ASSERT(!((p->stop - 2) < p->htop));
}
p->stop -= 2;
p->stop[0] = NIL;
p->stop[1] = hipe_beam_catch_throw;
}
ERTS_GLB_INLINE void hipe_unreserve_beam_trap_frame(Process *p)
{
if (!hipe_bifcall_from_native_is_recursive(p))
return;
ASSERT(p->stop[0] == NIL && p->stop[1] == hipe_beam_catch_throw);
p->stop += 2;
}
ERTS_GLB_INLINE int hipe_is_ra_mode_switch(const void* ra)
{
return ra == nbif_return;
}
#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
#endif /* ASM */
#endif /* HIPE_MODE_SWITCH_H */
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