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author | Rickard Green <rickard@erlang.org> | 2016-09-26 17:05:50 +0200 |
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committer | Rickard Green <rickard@erlang.org> | 2017-01-12 15:22:26 +0100 |
commit | 5aff60d96efac96a41b514ed167f13eb787a415f (patch) | |
tree | befc33447680685029e6013f10124fbd8518a618 /erts/emulator/beam/beam_emu.c | |
parent | 6bcdd45abd97134fddfb5b0307b1d256337b0c67 (diff) | |
download | otp-5aff60d96efac96a41b514ed167f13eb787a415f.tar.gz otp-5aff60d96efac96a41b514ed167f13eb787a415f.tar.bz2 otp-5aff60d96efac96a41b514ed167f13eb787a415f.zip |
Support for dirty BIFs
Diffstat (limited to 'erts/emulator/beam/beam_emu.c')
-rw-r--r-- | erts/emulator/beam/beam_emu.c | 117 |
1 files changed, 59 insertions, 58 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index bb77dbd955..befd2989f9 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -38,6 +38,7 @@ #include "beam_bp.h" #include "beam_catches.h" #include "erl_thr_progress.h" +#include "erl_nfunc_sched.h" #ifdef HIPE #include "hipe_mode_switch.h" #include "hipe_bif1.h" @@ -214,6 +215,7 @@ BeamInstr beam_continue_exit[1]; BeamInstr* em_call_error_handler; BeamInstr* em_apply_bif; BeamInstr* em_call_nif; +BeamInstr* em_call_bif_e; /* NOTE These should be the only variables containing trace instructions. @@ -2581,7 +2583,7 @@ do { \ OpCase(bif1_fbsd): { - Eterm (*bf)(Process*, Eterm*); + ErtsBifFunc bf; Eterm tmp_reg[1]; Eterm result; @@ -2592,7 +2594,7 @@ do { \ PROCESS_MAIN_CHK_LOCKS(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); ERTS_CHK_MBUF_SZ(c_p); - result = (*bf)(c_p, tmp_reg); + result = (*bf)(c_p, tmp_reg, I); ERTS_CHK_MBUF_SZ(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); @@ -2613,19 +2615,19 @@ do { \ OpCase(bif1_body_bsd): { - Eterm (*bf)(Process*, Eterm*); + ErtsBifFunc bf; Eterm tmp_reg[1]; Eterm result; GetArg1(1, tmp_reg[0]); - bf = (BifFunction) Arg(0); + bf = (ErtsBifFunc) Arg(0); ERTS_DBG_CHK_REDS(c_p, FCALLS); c_p->fcalls = FCALLS; PROCESS_MAIN_CHK_LOCKS(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); ERTS_CHK_MBUF_SZ(c_p); - result = (*bf)(c_p, tmp_reg); + result = (*bf)(c_p, tmp_reg, I); ERTS_CHK_MBUF_SZ(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); @@ -2775,17 +2777,17 @@ do { \ OpCase(i_bif2_fbssd): { Eterm tmp_reg[2]; - Eterm (*bf)(Process*, Eterm*); + ErtsBifFunc bf; Eterm result; GetArg2(2, tmp_reg[0], tmp_reg[1]); - bf = (BifFunction) Arg(1); + bf = (ErtsBifFunc) Arg(1); ERTS_DBG_CHK_REDS(c_p, FCALLS); c_p->fcalls = FCALLS; PROCESS_MAIN_CHK_LOCKS(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); ERTS_CHK_MBUF_SZ(c_p); - result = (*bf)(c_p, tmp_reg); + result = (*bf)(c_p, tmp_reg, I); ERTS_CHK_MBUF_SZ(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); @@ -2806,15 +2808,15 @@ do { \ OpCase(i_bif2_body_bssd): { Eterm tmp_reg[2]; - Eterm (*bf)(Process*, Eterm*); + ErtsBifFunc bf; Eterm result; GetArg2(1, tmp_reg[0], tmp_reg[1]); - bf = (BifFunction) Arg(0); + bf = (ErtsBifFunc) Arg(0); PROCESS_MAIN_CHK_LOCKS(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); ERTS_CHK_MBUF_SZ(c_p); - result = (*bf)(c_p, tmp_reg); + result = (*bf)(c_p, tmp_reg, I); ERTS_CHK_MBUF_SZ(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); @@ -2837,7 +2839,7 @@ do { \ */ OpCase(call_bif_e): { - Eterm (*bf)(Process*, Eterm*, BeamInstr*); + ErtsBifFunc bf; Eterm result; BeamInstr *next; ErlHeapFragment *live_hf_end; @@ -3644,7 +3646,7 @@ do { \ ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); { - Eterm (*bf)(Process*, Eterm*, BeamInstr*) = vbf; + ErtsBifFunc bf = vbf; ASSERT(!ERTS_PROC_IS_EXITING(c_p)); live_hf_end = c_p->mbuf; ERTS_CHK_MBUF_SZ(c_p); @@ -5137,6 +5139,7 @@ do { \ em_call_error_handler = OpCode(call_error_handler); em_apply_bif = OpCode(apply_bif); em_call_nif = OpCode(call_nif); + em_call_bif_e = OpCode(call_bif_e); beam_apply[0] = (BeamInstr) OpCode(i_apply); beam_apply[1] = (BeamInstr) OpCode(normal_exit); @@ -5342,8 +5345,6 @@ void erts_dirty_process_main(ErtsSchedulerData *esdp) I = c_p->i; - ASSERT(em_call_nif == (BeamInstr *) *I); - /* * Set fcalls even though we ignore it, so we don't * confuse code accessing it... @@ -5379,10 +5380,7 @@ void erts_dirty_process_main(ErtsSchedulerData *esdp) } { -#ifdef DEBUG - Eterm result; -#endif - Eterm arity; + int exiting; { /* @@ -5398,7 +5396,6 @@ void erts_dirty_process_main(ErtsSchedulerData *esdp) * * This layout is determined by the NifExport struct */ - BifFunction vbf; ErtsCodeMFA *codemfa; ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_NIF); @@ -5406,44 +5403,29 @@ void erts_dirty_process_main(ErtsSchedulerData *esdp) codemfa = erts_code_to_codemfa(I); DTRACE_NIF_ENTRY(c_p, codemfa); - /* current and vbf set to please handle_error */ c_p->current = codemfa; SWAPOUT; PROCESS_MAIN_CHK_LOCKS(c_p); - arity = codemfa->arity; ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - { - typedef Eterm NifF(struct enif_environment_t*, int argc, Eterm argv[]); - NifF* fp = vbf = (NifF*) I[1]; - struct enif_environment_t env; - ASSERT(!c_p->scheduler_data); - - erts_pre_dirty_nif(esdp, &env, c_p, - (struct erl_module_nif*)I[2]); - -#ifdef DEBUG - result = -#else - (void) -#endif - (*fp)(&env, arity, reg); - - erts_post_dirty_nif(&env); + if (em_apply_bif == (BeamInstr *) *I) { + exiting = erts_call_dirty_bif(esdp, c_p, I, reg); + } + else { + ASSERT(em_call_nif == (BeamInstr *) *I); + exiting = erts_call_dirty_nif(esdp, c_p, I, reg); + } - ASSERT(!is_value(result)); - ASSERT(c_p->freason == TRAP); - ASSERT(!(c_p->flags & F_HIBERNATE_SCHED)); + ASSERT(!(c_p->flags & F_HIBERNATE_SCHED)); - PROCESS_MAIN_CHK_LOCKS(c_p); - ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_EMULATOR); - if (env.exiting) - goto do_dirty_schedule; - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - } + PROCESS_MAIN_CHK_LOCKS(c_p); + ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); + ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); + ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_EMULATOR); + if (exiting) + goto do_dirty_schedule; + ASSERT(!ERTS_PROC_IS_EXITING(c_p)); DTRACE_NIF_RETURN(c_p, codemfa); ERTS_HOLE_CHECK(c_p); @@ -5529,10 +5511,15 @@ handle_error(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf) Eterm* hp; Eterm Value = c_p->fvalue; Eterm Args = am_true; - c_p->i = pc; /* In case we call erts_exit(). */ ASSERT(c_p->freason != TRAP); /* Should have been handled earlier. */ + if (c_p->freason & EXF_RESTORE_NIF) { + erts_nif_export_restore_error(c_p, &pc, reg, &bf); + } + + c_p->i = pc; /* In case we call erts_exit(). */ + /* * Check if we have an arglist for the top level call. If so, this * is encoded in Value, so we have to dig out the real Value as well @@ -5830,6 +5817,18 @@ expand_error_value(Process* c_p, Uint freason, Eterm Value) { */ static void +save_stacktrace_current(struct StackTrace *s, Process *c_p, ErtsCodeMFA *mfa) +{ + NifExport *nep = (NifExport *) ERTS_PROC_GET_NIF_TRAP_EXPORT(c_p); + if (!nep || &nep->exp.info.mfa != mfa) + s->current = mfa; + else { + s->mfa = *mfa; + s->current = &s->mfa; + } +} + +static void save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, Eterm args) { struct StackTrace* s; @@ -5858,12 +5857,10 @@ save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, && bf != throw_1 && bf != wrap_error_1 && bf != wrap_error_2 && bf != wrap_exit_1 && bf != wrap_throw_1) { int i; - int a = 0; + int a; for (i = 0; i < BIF_SIZE; i++) { if (bf == bif_table[i].f || bf == bif_table[i].traced) { - Export *ep = bif_export[i]; - s->current = &ep->info.mfa; - a = bif_table[i].arity; + save_stacktrace_current(s, c_p, &bif_export[i]->info.mfa); break; } } @@ -5875,9 +5872,11 @@ save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, * OR it is a NIF called by call_nif where current is also set. */ ASSERT(c_p->current); - s->current = c_p->current; - a = s->current->arity; + save_stacktrace_current(s, c_p, c_p->current); } + + a = s->current->arity; + /* Save first stack entry */ ASSERT(pc); if (depth > 0) { @@ -5892,7 +5891,9 @@ save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, s->pc = NULL; args = make_arglist(c_p, reg, a); /* Overwrite CAR(c_p->ftrace) */ } else { - s->current = c_p->current; + + save_stacktrace_current(s, c_p, c_p->current); + /* * For a function_clause error, the arguments are in the beam * registers, c_p->cp is valid, and c_p->current is set. |