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-rw-r--r--erts/emulator/beam/bif.h244
1 files changed, 190 insertions, 54 deletions
diff --git a/erts/emulator/beam/bif.h b/erts/emulator/beam/bif.h
index 51b77a95ed..2203182a0d 100644
--- a/erts/emulator/beam/bif.h
+++ b/erts/emulator/beam/bif.h
@@ -1,18 +1,19 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1996-2013. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2016. 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/.
+ * 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
*
- * 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.
+ * 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%
*/
@@ -20,7 +21,9 @@
#ifndef __BIF_H__
#define __BIF_H__
+extern Export *erts_await_result;
extern Export* erts_format_cpu_topology_trap;
+extern Export *erts_convert_time_unit_trap;
#define BIF_RETTYPE Eterm
@@ -30,10 +33,12 @@ extern Export* erts_format_cpu_topology_trap;
#define BIF_ALIST_1 Process* A__p, Eterm* BIF__ARGS
#define BIF_ALIST_2 Process* A__p, Eterm* BIF__ARGS
#define BIF_ALIST_3 Process* A__p, Eterm* BIF__ARGS
+#define BIF_ALIST_4 Process* A__p, Eterm* BIF__ARGS
#define BIF_ARG_1 (BIF__ARGS[0])
#define BIF_ARG_2 (BIF__ARGS[1])
#define BIF_ARG_3 (BIF__ARGS[2])
+#define BIF_ARG_4 (BIF__ARGS[3])
#define ERTS_IS_PROC_OUT_OF_REDS(p) \
((p)->fcalls > 0 \
@@ -47,24 +52,27 @@ extern Export* erts_format_cpu_topology_trap;
(p)->fcalls = 0; \
else \
(p)->fcalls = -CONTEXT_REDS; \
+ ASSERT(ERTS_BIF_REDS_LEFT((p)) == 0); \
} while(0)
-
-#define ERTS_VBUMP_ALL_REDS(p) \
+#define ERTS_VBUMP_ALL_REDS_INTERNAL(p, fcalls) \
do { \
if (!ERTS_PROC_GET_SAVED_CALLS_BUF((p))) { \
- if ((p)->fcalls > 0) \
- ERTS_PROC_GET_SCHDATA((p))->virtual_reds += (p)->fcalls; \
- (p)->fcalls = 0; \
+ if ((fcalls) > 0) \
+ erts_proc_sched_data((p))->virtual_reds += (fcalls); \
+ (fcalls) = 0; \
} \
else { \
- if ((p)->fcalls > -CONTEXT_REDS) \
- ERTS_PROC_GET_SCHDATA((p))->virtual_reds \
- += ((p)->fcalls - (-CONTEXT_REDS)); \
- (p)->fcalls = -CONTEXT_REDS; \
+ if ((fcalls) > -CONTEXT_REDS) \
+ erts_proc_sched_data((p))->virtual_reds \
+ += ((fcalls) - (-CONTEXT_REDS)); \
+ (fcalls) = -CONTEXT_REDS; \
} \
} while(0)
+#define ERTS_VBUMP_ALL_REDS(p) \
+ ERTS_VBUMP_ALL_REDS_INTERNAL((p), (p)->fcalls)
+
#define BUMP_REDS(p, gc) do { \
ASSERT(p); \
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p));\
@@ -83,32 +91,56 @@ do { \
if (!ERTS_PROC_GET_SAVED_CALLS_BUF((p))) { \
if ((p)->fcalls >= reds) { \
(p)->fcalls -= reds; \
- ERTS_PROC_GET_SCHDATA((p))->virtual_reds += reds; \
+ erts_proc_sched_data((p))->virtual_reds += reds; \
} \
else { \
if ((p)->fcalls > 0) \
- ERTS_PROC_GET_SCHDATA((p))->virtual_reds += (p)->fcalls;\
+ erts_proc_sched_data((p))->virtual_reds += (p)->fcalls; \
(p)->fcalls = 0; \
} \
} \
else { \
if ((p)->fcalls >= reds - CONTEXT_REDS) { \
(p)->fcalls -= reds; \
- ERTS_PROC_GET_SCHDATA((p))->virtual_reds += reds; \
+ erts_proc_sched_data((p))->virtual_reds += reds; \
} \
else { \
if ((p)->fcalls > -CONTEXT_REDS) \
- ERTS_PROC_GET_SCHDATA((p))->virtual_reds \
+ erts_proc_sched_data((p))->virtual_reds \
+= (p)->fcalls - (-CONTEXT_REDS); \
(p)->fcalls = -CONTEXT_REDS; \
} \
} \
} while(0)
-#define ERTS_BIF_REDS_LEFT(p) \
+#define ERTS_VBUMP_LEAVE_REDS_INTERNAL(P, Reds, FCalls) \
+ do { \
+ if (ERTS_PROC_GET_SAVED_CALLS_BUF((P))) { \
+ int nreds__ = ((int)(Reds)) - CONTEXT_REDS; \
+ if ((FCalls) > nreds__) { \
+ erts_proc_sched_data((P))->virtual_reds \
+ += (FCalls) - nreds__; \
+ (FCalls) = nreds__; \
+ } \
+ } \
+ else { \
+ if ((FCalls) > (Reds)) { \
+ erts_proc_sched_data((P))->virtual_reds \
+ += (FCalls) - (Reds); \
+ (FCalls) = (Reds); \
+ } \
+ } \
+ } while (0)
+
+#define ERTS_VBUMP_LEAVE_REDS(P, Reds) \
+ ERTS_VBUMP_LEAVE_REDS_INTERNAL(P, Reds, (P)->fcalls)
+
+#define ERTS_REDS_LEFT(p, FCalls) \
(ERTS_PROC_GET_SAVED_CALLS_BUF((p)) \
- ? ((p)->fcalls > -CONTEXT_REDS ? ((p)->fcalls - (-CONTEXT_REDS)) : 0)\
- : ((p)->fcalls > 0 ? (p)->fcalls : 0))
+ ? ((FCalls) > -CONTEXT_REDS ? ((FCalls) - (-CONTEXT_REDS)) : 0) \
+ : ((FCalls) > 0 ? (FCalls) : 0))
+
+#define ERTS_BIF_REDS_LEFT(p) ERTS_REDS_LEFT(p, p->fcalls)
#define BIF_RET2(x, gc) do { \
BUMP_REDS(BIF_P, (gc)); \
@@ -124,12 +156,85 @@ do { \
return THE_NON_VALUE; \
} while(0)
+#define ERTS_BIF_ERROR_TRAPPED0(Proc, Reason, Bif) \
+do { \
+ (Proc)->freason = (Reason); \
+ (Proc)->current = (Bif)->code; \
+ return THE_NON_VALUE; \
+} while (0)
+
+#define ERTS_BIF_ERROR_TRAPPED1(Proc, Reason, Bif, A0) \
+do { \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
+ (Proc)->freason = (Reason); \
+ (Proc)->current = (Bif)->code; \
+ reg[0] = (Eterm) (A0); \
+ return THE_NON_VALUE; \
+} while (0)
+
+#define ERTS_BIF_ERROR_TRAPPED2(Proc, Reason, Bif, A0, A1) \
+do { \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
+ (Proc)->freason = (Reason); \
+ (Proc)->current = (Bif)->code; \
+ reg[0] = (Eterm) (A0); \
+ reg[1] = (Eterm) (A1); \
+ return THE_NON_VALUE; \
+} while (0)
+
+#define ERTS_BIF_ERROR_TRAPPED3(Proc, Reason, Bif, A0, A1, A2) \
+do { \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
+ (Proc)->freason = (Reason); \
+ (Proc)->current = (Bif)->code; \
+ reg[0] = (Eterm) (A0); \
+ reg[1] = (Eterm) (A1); \
+ reg[2] = (Eterm) (A2); \
+ return THE_NON_VALUE; \
+} while (0)
+
#define ERTS_BIF_PREP_ERROR(Ret, Proc, Reason) \
do { \
(Proc)->freason = (Reason); \
(Ret) = THE_NON_VALUE; \
} while (0)
+#define ERTS_BIF_PREP_ERROR_TRAPPED0(Ret, Proc, Reason, Bif) \
+do { \
+ (Proc)->freason = (Reason); \
+ (Proc)->current = (Bif)->code; \
+ (Ret) = THE_NON_VALUE; \
+} while (0)
+
+#define ERTS_BIF_PREP_ERROR_TRAPPED1(Ret, Proc, Reason, Bif, A0) \
+do { \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
+ (Proc)->freason = (Reason); \
+ (Proc)->current = (Bif)->code; \
+ reg[0] = (Eterm) (A0); \
+ (Ret) = THE_NON_VALUE; \
+} while (0)
+
+#define ERTS_BIF_PREP_ERROR_TRAPPED2(Ret, Proc, Reason, Bif, A0, A1) \
+do { \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
+ (Proc)->freason = (Reason); \
+ (Proc)->current = (Bif)->code; \
+ reg[0] = (Eterm) (A0); \
+ reg[1] = (Eterm) (A1); \
+ (Ret) = THE_NON_VALUE; \
+} while (0)
+
+#define ERTS_BIF_PREP_ERROR_TRAPPED3(Ret, Proc, Reason, Bif, A0, A1, A2) \
+do { \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
+ (Proc)->freason = (Reason); \
+ (Proc)->current = (Bif)->code; \
+ reg[0] = (Eterm) (A0); \
+ reg[1] = (Eterm) (A1); \
+ reg[2] = (Eterm) (A2); \
+ (Ret) = THE_NON_VALUE; \
+} while (0)
#define ERTS_BIF_PREP_TRAP0(Ret, Trap, Proc) \
do { \
@@ -141,7 +246,7 @@ do { \
#define ERTS_BIF_PREP_TRAP1(Ret, Trap, Proc, A0) \
do { \
- Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
(Proc)->arity = 1; \
reg[0] = (Eterm) (A0); \
(Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
@@ -151,7 +256,7 @@ do { \
#define ERTS_BIF_PREP_TRAP2(Ret, Trap, Proc, A0, A1) \
do { \
- Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
(Proc)->arity = 2; \
reg[0] = (Eterm) (A0); \
reg[1] = (Eterm) (A1); \
@@ -162,7 +267,7 @@ do { \
#define ERTS_BIF_PREP_TRAP3(Ret, Trap, Proc, A0, A1, A2) \
do { \
- Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
(Proc)->arity = 3; \
reg[0] = (Eterm) (A0); \
reg[1] = (Eterm) (A1); \
@@ -174,7 +279,7 @@ do { \
#define ERTS_BIF_PREP_TRAP3_NO_RET(Trap, Proc, A0, A1, A2)\
do { \
- Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \
+ Eterm* reg = erts_proc_sched_data((Proc))->x_reg_array; \
(Proc)->arity = 3; \
reg[0] = (Eterm) (A0); \
reg[1] = (Eterm) (A1); \
@@ -191,7 +296,7 @@ do { \
} while(0)
#define BIF_TRAP1(Trap_, p, A0) do { \
- Eterm* reg = ERTS_PROC_GET_SCHDATA((p))->x_reg_array; \
+ Eterm* reg = erts_proc_sched_data((p))->x_reg_array; \
(p)->arity = 1; \
reg[0] = (A0); \
(p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \
@@ -200,7 +305,7 @@ do { \
} while(0)
#define BIF_TRAP2(Trap_, p, A0, A1) do { \
- Eterm* reg = ERTS_PROC_GET_SCHDATA((p))->x_reg_array; \
+ Eterm* reg = erts_proc_sched_data((p))->x_reg_array; \
(p)->arity = 2; \
reg[0] = (A0); \
reg[1] = (A1); \
@@ -210,7 +315,7 @@ do { \
} while(0)
#define BIF_TRAP3(Trap_, p, A0, A1, A2) do { \
- Eterm* reg = ERTS_PROC_GET_SCHDATA((p))->x_reg_array; \
+ Eterm* reg = erts_proc_sched_data((p))->x_reg_array; \
(p)->arity = 3; \
reg[0] = (A0); \
reg[1] = (A1); \
@@ -234,37 +339,20 @@ do { \
} while(0)
extern Export bif_return_trap_export;
-#ifdef DEBUG
-#define ERTS_BIF_PREP_YIELD_RETURN_X(RET, P, VAL, DEBUG_VAL) \
+#define ERTS_BIF_PREP_YIELD_RETURN_X(RET, P, VAL, OP) \
do { \
ERTS_VBUMP_ALL_REDS(P); \
- ERTS_BIF_PREP_TRAP2(RET, &bif_return_trap_export, (P), (VAL), \
- (DEBUG_VAL)); \
+ ERTS_BIF_PREP_TRAP2(RET, &bif_return_trap_export, (P), (VAL), (OP));\
} while (0)
-#else
-#define ERTS_BIF_PREP_YIELD_RETURN_X(RET, P, VAL, DEBUG_VAL) \
-do { \
- ERTS_VBUMP_ALL_REDS(P); \
- ERTS_BIF_PREP_TRAP1(RET, &bif_return_trap_export, (P), (VAL)); \
-} while (0)
-#endif
#define ERTS_BIF_PREP_YIELD_RETURN(RET, P, VAL) \
ERTS_BIF_PREP_YIELD_RETURN_X(RET, (P), (VAL), am_undefined)
-#ifdef DEBUG
-#define ERTS_BIF_YIELD_RETURN_X(P, VAL, DEBUG_VAL) \
-do { \
- ERTS_VBUMP_ALL_REDS(P); \
- BIF_TRAP2(&bif_return_trap_export, (P), (VAL), (DEBUG_VAL)); \
-} while (0)
-#else
-#define ERTS_BIF_YIELD_RETURN_X(P, VAL, DEBUG_VAL) \
+#define ERTS_BIF_YIELD_RETURN_X(P, VAL, OP) \
do { \
ERTS_VBUMP_ALL_REDS(P); \
- BIF_TRAP1(&bif_return_trap_export, (P), (VAL)); \
+ BIF_TRAP2(&bif_return_trap_export, (P), (VAL), (OP)); \
} while (0)
-#endif
#define ERTS_BIF_RETURN_YIELD(P) ERTS_VBUMP_ALL_REDS((P))
@@ -392,6 +480,54 @@ erts_bif_prep_await_proc_exit_apply_trap(Process *c_p,
Eterm args[],
int nargs);
+#ifdef ERL_WANT_HIPE_BIF_WRAPPER__
+
+#ifndef HIPE
+
+#define HIPE_WRAPPER_BIF_DISABLE_GC(BIF_NAME, ARITY)
+
+#else
+
+#include "erl_fun.h"
+#include "hipe_mode_switch.h"
+
+/*
+ * Hipe wrappers used by native code for BIFs that disable GC while trapping.
+ * Also add usage of the wrapper in ../hipe/hipe_bif_list.m4
+ *
+ * Problem:
+ * When native code calls a BIF that traps, hipe_mode_switch will push a
+ * "trap frame" on the Erlang stack in order to find its way back from beam_emu
+ * back to native caller when finally done. If GC is disabled and stack/heap
+ * is full there is no place to push the "trap frame".
+ *
+ * Solution:
+ * We reserve space on stack for the "trap frame" here before the BIF is called.
+ * If the BIF does not trap, the space is reclaimed here before returning.
+ * If the BIF traps, hipe_push_beam_trap_frame() will detect that a "trap frame"
+ * already is reserved and use it.
+ */
+
+
+#define HIPE_WRAPPER_BIF_DISABLE_GC(BIF_NAME, ARITY) \
+BIF_RETTYPE hipe_wrapper_ ## BIF_NAME ## _ ## ARITY (Process* c_p, \
+ Eterm* args); \
+BIF_RETTYPE hipe_wrapper_ ## BIF_NAME ## _ ## ARITY (Process* c_p, \
+ Eterm* args) \
+{ \
+ BIF_RETTYPE res; \
+ hipe_reserve_beam_trap_frame(c_p, args, ARITY); \
+ res = BIF_NAME ## _ ## ARITY (c_p, args); \
+ if (is_value(res) || c_p->freason != TRAP) { \
+ hipe_unreserve_beam_trap_frame(c_p); \
+ } \
+ return res; \
+}
+
+#endif
+
+#endif /* ERL_WANT_HIPE_BIF_WRAPPER__ */
+
#include "erl_bif_table.h"
#endif
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