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authorSverker Eriksson <[email protected]>2014-10-24 17:22:11 +0200
committerSverker Eriksson <[email protected]>2014-10-24 17:22:11 +0200
commita70f0ce9b34e4db61dacb8db24f9ab5671ed4c8a (patch)
tree13cb87dd0379e0f2062cbe115ce330bfa66babcc /erts/emulator
parent9f0477e13bb8819ee252d2b8834c1411f02a9cb8 (diff)
parentbc59e9a04bf446b3a73f20ca0e91c122de7aa571 (diff)
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Merge branch 'sverk/hipe-wrap-bif-disable-gc-fixes/OTP-12231' into maint
* sverk/hipe-wrap-bif-disable-gc-fixes/OTP-12231: erts: Fix bug when hipe tailcalls trapping BIF that disables GC erts: Fix hipe bug when gc-disabling bif traps with gc enabled
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/hipe/hipe_mode_switch.c20
-rw-r--r--erts/emulator/hipe/hipe_risc_glue.h8
-rw-r--r--erts/emulator/hipe/hipe_x86_glue.h8
3 files changed, 30 insertions, 6 deletions
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c
index 4ddc2790b1..1ae1d17b7f 100644
--- a/erts/emulator/hipe/hipe_mode_switch.c
+++ b/erts/emulator/hipe/hipe_mode_switch.c
@@ -2,7 +2,7 @@
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2001-2013. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2014. 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
@@ -187,6 +187,9 @@ void hipe_set_call_trap(Uint *bfun, void *nfun, int is_closure)
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) {
DPRINTF("calling gc to reserve BEAM stack size");
@@ -195,25 +198,26 @@ void hipe_reserve_beam_trap_frame(Process *p, Eterm reg[], unsigned arity)
}
p->stop -= 2;
p->stop[0] = NIL;
- p->stop[1] = NIL;
+ p->stop[1] = hipe_beam_catch_throw;
}
static __inline__ void
hipe_push_beam_trap_frame(Process *p, Eterm reg[], unsigned arity)
{
- if (p->flags & F_DISABLE_GC) {
+ if (&p->stop[1] < p->hend && p->stop[1] == hipe_beam_catch_throw) {
/* Trap frame already reserved */
- ASSERT(p->stop[0] == NIL && p->stop[1] == NIL);
+ ASSERT(p->stop[0] == NIL);
}
else {
+ ASSERT(!(p->flags & F_DISABLE_GC));
if ((p->stop - 2) < p->htop) {
DPRINTF("calling gc to increase BEAM stack size");
p->fcalls -= erts_garbage_collect(p, 2, reg, arity);
ASSERT(!((p->stop - 2) < p->htop));
}
p->stop -= 2;
+ p->stop[1] = hipe_beam_catch_throw;
}
- p->stop[1] = hipe_beam_catch_throw;
p->stop[0] = make_cp(p->cp);
++p->catches;
p->cp = hipe_beam_pc_return;
@@ -221,12 +225,16 @@ hipe_push_beam_trap_frame(Process *p, Eterm reg[], unsigned arity)
void hipe_unreserve_beam_trap_frame(Process *p)
{
- ASSERT(p->stop[0] == NIL && p->stop[1] == NIL);
+ if (!hipe_bifcall_from_native_is_recursive(p))
+ return;
+
+ ASSERT(p->stop[0] == NIL && p->stop[1] == hipe_beam_catch_throw);
p->stop += 2;
}
static __inline__ void hipe_pop_beam_trap_frame(Process *p)
{
+ ASSERT(p->stop[1] == hipe_beam_catch_throw);
p->cp = cp_val(p->stop[0]);
--p->catches;
p->stop += 2;
diff --git a/erts/emulator/hipe/hipe_risc_glue.h b/erts/emulator/hipe/hipe_risc_glue.h
index cc2671c016..dbb7086dae 100644
--- a/erts/emulator/hipe/hipe_risc_glue.h
+++ b/erts/emulator/hipe/hipe_risc_glue.h
@@ -214,6 +214,14 @@ hipe_trap_from_native_is_recursive(Process *p)
return 0;
}
+/* Native called BIF. Is it a recursive call?
+ i.e should we return back to native when BIF is done? */
+static __inline__ int
+hipe_bifcall_from_native_is_recursive(Process *p)
+{
+ return (p->hipe.nra != (void(*)(void))&nbif_return);
+}
+
/* Native makes a call which needs to unload the parameters.
This differs from hipe_call_from_native_is_recursive() in
diff --git a/erts/emulator/hipe/hipe_x86_glue.h b/erts/emulator/hipe/hipe_x86_glue.h
index 63ad250d60..4b6e495b9a 100644
--- a/erts/emulator/hipe/hipe_x86_glue.h
+++ b/erts/emulator/hipe/hipe_x86_glue.h
@@ -207,6 +207,14 @@ hipe_trap_from_native_is_recursive(Process *p)
return 0;
}
+/* Native called BIF. Is it a recursive call?
+ i.e should we return back to native when BIF is done? */
+static __inline__ int
+hipe_bifcall_from_native_is_recursive(Process *p)
+{
+ return (*p->hipe.nsp != (Eterm)nbif_return);
+}
+
/* Native makes a call which needs to unload the parameters.
This differs from hipe_call_from_native_is_recursive() in