diff options
Diffstat (limited to 'erts/emulator/beam/beam_emu.c')
-rw-r--r-- | erts/emulator/beam/beam_emu.c | 633 |
1 files changed, 199 insertions, 434 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 937b3d9e53..c65b2be106 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -36,6 +36,7 @@ #include "dist.h" #include "beam_bp.h" #include "beam_catches.h" +#include "erl_thr_progress.h" #ifdef HIPE #include "hipe_mode_switch.h" #include "hipe_bif1.h" @@ -44,7 +45,7 @@ /* #define HARDDEBUG 1 */ #if defined(NO_JUMP_TABLE) -# define OpCase(OpCode) case op_##OpCode: lb_##OpCode +# define OpCase(OpCode) case op_##OpCode # define CountCase(OpCode) case op_count_##OpCode # define OpCode(OpCode) ((Uint*)op_##OpCode) # define Goto(Rel) {Go = (int)(Rel); goto emulator_loop;} @@ -52,7 +53,7 @@ #else # define OpCase(OpCode) lb_##OpCode # define CountCase(OpCode) lb_count_##OpCode -# define Goto(Rel) goto *(Rel) +# define Goto(Rel) goto *((void *)Rel) # define LabelAddr(Label) &&Label # define OpCode(OpCode) (&&lb_##OpCode) #endif @@ -70,7 +71,7 @@ do { \ } \ else \ erts_lc_check_exact(NULL, 0); \ - ERTS_SMP_LC_ASSERT(!ERTS_LC_IS_BLOCKING); \ + ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); \ } while (0) # define ERTS_SMP_REQ_PROC_MAIN_LOCK(P) \ if ((P)) erts_proc_lc_require_lock((P), ERTS_PROC_LOCK_MAIN) @@ -198,7 +199,7 @@ do { \ } \ } while (0) -#define ClauseFail() goto lb_jump_f +#define ClauseFail() goto jump_f #define SAVE_CP(X) \ do { \ @@ -233,6 +234,12 @@ BeamInstr beam_return_trace[1]; /* OpCode(i_return_trace) */ BeamInstr beam_exception_trace[1]; /* UGLY also OpCode(i_return_trace) */ BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */ + +/* + * We should warn only once for tuple funs. + */ +static erts_smp_atomic_t warned_for_tuple_funs; + /* * All Beam instructions in numerical order. */ @@ -303,44 +310,6 @@ extern int count_instructions; PROCESS_MAIN_CHK_LOCKS((P)); \ ERTS_SMP_UNREQ_PROC_MAIN_LOCK((P)) -#if defined(HYBRID) -# define POST_BIF_GC_SWAPIN_0(_p, _res) \ - if (((_p)->mbuf) || (MSO(_p).overhead >= BIN_VHEAP_SZ(_p)) ) { \ - _res = erts_gc_after_bif_call((_p), (_res), NULL, 0); \ - } \ - SWAPIN - -# define POST_BIF_GC_SWAPIN(_p, _res, _regs, _arity) \ - if (((_p)->mbuf) || (MSO(_p).overhead >= BIN_VHEAP_SZ(_p)) ) { \ - _regs[0] = r(0); \ - _res = erts_gc_after_bif_call((_p), (_res), _regs, (_arity)); \ - r(0) = _regs[0]; \ - } \ - SWAPIN -#else -# define POST_BIF_GC_SWAPIN_0(_p, _res) \ - ERTS_SMP_REQ_PROC_MAIN_LOCK((_p)); \ - PROCESS_MAIN_CHK_LOCKS((_p)); \ - ERTS_VERIFY_UNUSED_TEMP_ALLOC((_p)); \ - if (((_p)->mbuf) || (MSO(_p).overhead >= BIN_VHEAP_SZ(_p)) ) { \ - _res = erts_gc_after_bif_call((_p), (_res), NULL, 0); \ - E = (_p)->stop; \ - } \ - HTOP = HEAP_TOP((_p)) - -# define POST_BIF_GC_SWAPIN(_p, _res, _regs, _arity) \ - ERTS_VERIFY_UNUSED_TEMP_ALLOC((_p)); \ - ERTS_SMP_REQ_PROC_MAIN_LOCK((_p)); \ - PROCESS_MAIN_CHK_LOCKS((_p)); \ - if (((_p)->mbuf) || (MSO(_p).overhead >= BIN_VHEAP_SZ(_p)) ) { \ - _regs[0] = r(0); \ - _res = erts_gc_after_bif_call((_p), (_res), _regs, (_arity)); \ - r(0) = _regs[0]; \ - E = (_p)->stop; \ - } \ - HTOP = HEAP_TOP((_p)) -#endif - #define db(N) (N) #define tb(N) (N) #define xb(N) (*(Eterm *) (((unsigned char *)reg) + (N))) @@ -794,11 +763,11 @@ extern int count_instructions; } \ } while (0) -#define IsFunction2(F, A, Action) \ - do { \ - if (is_function_2(c_p, F, A) != am_true ) {\ - Action; \ - } \ +#define IsFunction2(F, A, Action) \ + do { \ + if (erl_is_function(c_p, F, A) != am_true ) { \ + Action; \ + } \ } while (0) #define IsTupleOfArity(Src, Arity, Fail) \ @@ -1052,6 +1021,7 @@ init_emulator(void) #if defined(VXWORKS) init_done = 0; #endif + erts_smp_atomic_init_nob(&warned_for_tuple_funs, (erts_aint_t) 0); process_main(); } @@ -1094,7 +1064,7 @@ void process_main(void) Process* c_p = NULL; int reds_used; #ifdef DEBUG - Eterm pid; + ERTS_DECLARE_DUMMY(Eterm pid); #endif /* @@ -1145,26 +1115,11 @@ void process_main(void) Eterm *tmp_big; /* Temporary buffer for small bignums if !HEAP_ON_C_STACK. */ #endif -#ifndef ERTS_SMP -#if !HALFWORD_HEAP - static Eterm save_reg[ERTS_X_REGS_ALLOCATED]; - /* X registers -- not used directly, but - * through 'reg', because using it directly - * needs two instructions on a SPARC, - * while using it through reg needs only - * one. - */ -#endif /* - * Floating point registers. - */ - static FloatDef freg[MAX_REG]; -#else - /* X regisers and floating point registers are located in + * X registers and floating point registers are located in * scheduler specific data. */ register FloatDef *freg; -#endif /* * For keeping the negative old value of 'reds' when call saving is active. @@ -1201,14 +1156,6 @@ void process_main(void) init_done = 1; goto init_emulator; } -#ifndef ERTS_SMP -#if !HALFWORD_HEAP - reg = save_reg; /* XXX: probably wastes a register on x86 */ -#else - /* Registers need to be heap allocated (correct memory range) for tracing to work */ - reg = erts_alloc(ERTS_ALC_T_BEAM_REGISTER, ERTS_X_REGS_ALLOCATED * sizeof(Eterm)); -#endif -#endif c_p = NULL; reds_used = 0; goto do_schedule1; @@ -1225,14 +1172,12 @@ void process_main(void) c_p = schedule(c_p, reds_used); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); #ifdef DEBUG - pid = c_p->id; + pid = c_p->id; /* Save for debugging purpouses */ #endif ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); PROCESS_MAIN_CHK_LOCKS(c_p); -#ifdef ERTS_SMP - reg = c_p->scheduler_data->save_reg; - freg = c_p->scheduler_data->freg; -#endif + reg = ERTS_PROC_GET_SCHDATA(c_p)->x_reg_array; + freg = ERTS_PROC_GET_SCHDATA(c_p)->f_reg_array; #if !HEAP_ON_C_STACK tmp_big = ERTS_PROC_GET_SCHDATA(c_p)->beam_emu_tmp_heap; #endif @@ -1566,9 +1511,17 @@ void process_main(void) PRE_BIF_SWAPOUT(c_p); c_p->fcalls = FCALLS - 1; - result = send_2(c_p, r(0), x(1)); + reg[0] = r(0); + result = erl_send(c_p, r(0), x(1)); PreFetch(0, next); - POST_BIF_GC_SWAPIN(c_p, result, reg, 2); + ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); + PROCESS_MAIN_CHK_LOCKS(c_p); + if (c_p->mbuf || MSO(c_p).overhead >= BIN_VHEAP_SZ(c_p)) { + result = erts_gc_after_bif_call(c_p, result, reg, 2); + r(0) = reg[0]; + E = c_p->stop; + } + HTOP = HEAP_TOP(c_p); FCALLS = c_p->fcalls; if (is_value(result)) { r(0) = result; @@ -1576,10 +1529,9 @@ void process_main(void) NextPF(0, next); } else if (c_p->freason == TRAP) { SET_CP(c_p, I+1); - SET_I(*((BeamInstr **) (BeamInstr) ((c_p)->def_arg_reg + 3))); + SET_I(c_p->i); SWAPIN; - r(0) = c_p->def_arg_reg[0]; - x(1) = c_p->def_arg_reg[1]; + r(0) = reg[0]; Dispatch(); } goto find_func_info; @@ -2234,16 +2186,16 @@ void process_main(void) OpCase(bif1_fbsd): { - Eterm (*bf)(Process*, Eterm); - Eterm arg; + Eterm (*bf)(Process*, Eterm*); + Eterm tmp_reg[1]; Eterm result; - GetArg1(2, arg); + GetArg1(2, tmp_reg[0]); bf = (BifFunction) Arg(1); c_p->fcalls = FCALLS; PROCESS_MAIN_CHK_LOCKS(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - result = (*bf)(c_p, arg); + result = (*bf)(c_p, tmp_reg); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); PROCESS_MAIN_CHK_LOCKS(c_p); @@ -2262,17 +2214,17 @@ void process_main(void) OpCase(bif1_body_bsd): { - Eterm (*bf)(Process*, Eterm); + Eterm (*bf)(Process*, Eterm*); - Eterm arg; + Eterm tmp_reg[1]; Eterm result; - GetArg1(1, arg); + GetArg1(1, tmp_reg[0]); bf = (BifFunction) Arg(0); c_p->fcalls = FCALLS; PROCESS_MAIN_CHK_LOCKS(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - result = (*bf)(c_p, arg); + result = (*bf)(c_p, tmp_reg); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); PROCESS_MAIN_CHK_LOCKS(c_p); @@ -2281,7 +2233,7 @@ void process_main(void) if (is_value(result)) { StoreBifResult(2, result); } - reg[0] = arg; + reg[0] = tmp_reg[0]; SWAPOUT; I = handle_error(c_p, I, reg, bf); goto post_error_handling; @@ -2405,14 +2357,15 @@ void process_main(void) */ OpCase(i_bif2_fbd): { - Eterm (*bf)(Process*, Eterm, Eterm); + Eterm tmp_reg[2] = {tmp_arg1, tmp_arg2}; + Eterm (*bf)(Process*, Eterm*); Eterm result; bf = (BifFunction) Arg(1); c_p->fcalls = FCALLS; PROCESS_MAIN_CHK_LOCKS(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - result = (*bf)(c_p, tmp_arg1, tmp_arg2); + result = (*bf)(c_p, tmp_reg); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); PROCESS_MAIN_CHK_LOCKS(c_p); @@ -2430,13 +2383,14 @@ void process_main(void) */ OpCase(i_bif2_body_bd): { - Eterm (*bf)(Process*, Eterm, Eterm); + Eterm tmp_reg[2] = {tmp_arg1, tmp_arg2}; + Eterm (*bf)(Process*, Eterm*); Eterm result; bf = (BifFunction) Arg(0); PROCESS_MAIN_CHK_LOCKS(c_p); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - result = (*bf)(c_p, tmp_arg1, tmp_arg2); + result = (*bf)(c_p, tmp_reg); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); PROCESS_MAIN_CHK_LOCKS(c_p); @@ -2456,77 +2410,9 @@ void process_main(void) * The most general BIF call. The BIF may build any amount of data * on the heap. The result is always returned in r(0). */ - OpCase(call_bif0_e): + OpCase(call_bif_e): { - Eterm (*bf)(Process*, BeamInstr*) = GET_BIF_ADDRESS(Arg(0)); - - PRE_BIF_SWAPOUT(c_p); - c_p->fcalls = FCALLS - 1; - if (FCALLS <= 0) { - save_calls(c_p, (Export *) Arg(0)); - } - - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - r(0) = (*bf)(c_p, I); - ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(r(0))); - ERTS_HOLE_CHECK(c_p); - POST_BIF_GC_SWAPIN_0(c_p, r(0)); - FCALLS = c_p->fcalls; - if (is_value(r(0))) { - CHECK_TERM(r(0)); - Next(1); - } - else if (c_p->freason == TRAP) { - goto call_bif_trap3; - } - - /* - * Error handling. SWAPOUT is not needed because it was done above. - */ - ASSERT(c_p->stop == E); - reg[0] = r(0); - I = handle_error(c_p, I, reg, bf); - goto post_error_handling; - } - - OpCase(call_bif1_e): - { - Eterm (*bf)(Process*, Eterm, BeamInstr*) = GET_BIF_ADDRESS(Arg(0)); - Eterm result; - BeamInstr *next; - - c_p->fcalls = FCALLS - 1; - if (FCALLS <= 0) { - save_calls(c_p, (Export *) Arg(0)); - } - PreFetch(1, next); - PRE_BIF_SWAPOUT(c_p); - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - result = (*bf)(c_p, r(0), I); - ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); - ERTS_HOLE_CHECK(c_p); - POST_BIF_GC_SWAPIN(c_p, result, reg, 1); - FCALLS = c_p->fcalls; - if (is_value(result)) { - r(0) = result; - CHECK_TERM(r(0)); - NextPF(1, next); - } else if (c_p->freason == TRAP) { - goto call_bif_trap3; - } - - /* - * Error handling. SWAPOUT is not needed because it was done above. - */ - ASSERT(c_p->stop == E); - reg[0] = r(0); - I = handle_error(c_p, I, reg, bf); - goto post_error_handling; - } - - OpCase(call_bif2_e): - { - Eterm (*bf)(Process*, Eterm, Eterm, BeamInstr*) = GET_BIF_ADDRESS(Arg(0)); + Eterm (*bf)(Process*, Eterm*, BeamInstr*) = GET_BIF_ADDRESS(Arg(0)); Eterm result; BeamInstr *next; @@ -2536,61 +2422,29 @@ void process_main(void) save_calls(c_p, (Export *) Arg(0)); } PreFetch(1, next); - CHECK_TERM(r(0)); - CHECK_TERM(x(1)); ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - result = (*bf)(c_p, r(0), x(1), I); - ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); - ERTS_HOLE_CHECK(c_p); - POST_BIF_GC_SWAPIN(c_p, result, reg, 2); - FCALLS = c_p->fcalls; - if (is_value(result)) { - r(0) = result; - CHECK_TERM(r(0)); - NextPF(1, next); - } else if (c_p->freason == TRAP) { - goto call_bif_trap3; - } - - /* - * Error handling. SWAPOUT is not needed because it was done above. - */ - ASSERT(c_p->stop == E); reg[0] = r(0); - I = handle_error(c_p, I, reg, bf); - goto post_error_handling; - } - - OpCase(call_bif3_e): - { - Eterm (*bf)(Process*, Eterm, Eterm, Eterm, BeamInstr*) = GET_BIF_ADDRESS(Arg(0)); - Eterm result; - BeamInstr *next; - - PRE_BIF_SWAPOUT(c_p); - c_p->fcalls = FCALLS - 1; - if (FCALLS <= 0) { - save_calls(c_p, (Export *) Arg(0)); - } - PreFetch(1, next); - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - result = (*bf)(c_p, r(0), x(1), x(2), I); + result = (*bf)(c_p, reg, I); ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result)); ERTS_HOLE_CHECK(c_p); - POST_BIF_GC_SWAPIN(c_p, result, reg, 3); + ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); + PROCESS_MAIN_CHK_LOCKS(c_p); + if (c_p->mbuf || MSO(c_p).overhead >= BIN_VHEAP_SZ(c_p)) { + Uint arity = ((Export *)Arg(0))->code[2]; + result = erts_gc_after_bif_call(c_p, result, reg, arity); + E = c_p->stop; + } + HTOP = HEAP_TOP(c_p); FCALLS = c_p->fcalls; if (is_value(result)) { r(0) = result; CHECK_TERM(r(0)); NextPF(1, next); } else if (c_p->freason == TRAP) { - call_bif_trap3: SET_CP(c_p, I+2); - SET_I(*((BeamInstr **) (UWord) ((c_p)->def_arg_reg + 3))); + SET_I(c_p->i); SWAPIN; - r(0) = c_p->def_arg_reg[0]; - x(1) = c_p->def_arg_reg[1]; - x(2) = c_p->def_arg_reg[2]; + r(0) = reg[0]; Dispatch(); } @@ -2598,7 +2452,6 @@ void process_main(void) * Error handling. SWAPOUT is not needed because it was done above. */ ASSERT(c_p->stop == E); - reg[0] = r(0); I = handle_error(c_p, I, reg, bf); goto post_error_handling; } @@ -2694,6 +2547,7 @@ void process_main(void) lb_Cl_error: { if (Arg(0) != 0) { OpCase(jump_f): { + jump_f: SET_I((BeamInstr *) Arg(0)); Goto(*I); } @@ -3267,7 +3121,7 @@ void process_main(void) /* Fall through */ OpCase(error_action_code): { - no_error_handler: + handle_error: reg[0] = r(0); SWAPOUT; I = handle_error(c_p, NULL, reg, NULL); @@ -3351,64 +3205,23 @@ void process_main(void) ASSERT(bif_nif_arity <= 3); ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p); ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - switch (bif_nif_arity) { - case 3: - { - Eterm (*bf)(Process*, Eterm, Eterm, Eterm, BeamInstr*) = vbf; - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - nif_bif_result = (*bf)(c_p, r(0), x(1), x(2), I); - ASSERT(!ERTS_PROC_IS_EXITING(c_p) || - is_non_value(nif_bif_result)); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - } - break; - case 2: - { - Eterm (*bf)(Process*, Eterm, Eterm, BeamInstr*) = vbf; - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - nif_bif_result = (*bf)(c_p, r(0), x(1), I); - ASSERT(!ERTS_PROC_IS_EXITING(c_p) || - is_non_value(nif_bif_result)); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - } - break; - case 1: - { - Eterm (*bf)(Process*, Eterm, BeamInstr*) = vbf; - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - nif_bif_result = (*bf)(c_p, r(0), I); - ASSERT(!ERTS_PROC_IS_EXITING(c_p) || - is_non_value(nif_bif_result)); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - } - break; - case 0: - { - Eterm (*bf)(Process*, BeamInstr*) = vbf; - ASSERT(!ERTS_PROC_IS_EXITING(c_p)); - nif_bif_result = (*bf)(c_p, I); - ASSERT(!ERTS_PROC_IS_EXITING(c_p) || - is_non_value(nif_bif_result)); - ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); - PROCESS_MAIN_CHK_LOCKS(c_p); - break; - } - default: - erl_exit(1, "apply_bif: invalid arity: %u\n", - bif_nif_arity); + reg[0] = r(0); + { + Eterm (*bf)(Process*, Eterm*, BeamInstr*) = vbf; + ASSERT(!ERTS_PROC_IS_EXITING(c_p)); + nif_bif_result = (*bf)(c_p, reg, I); + ASSERT(!ERTS_PROC_IS_EXITING(c_p) || + is_non_value(nif_bif_result)); + ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p); + PROCESS_MAIN_CHK_LOCKS(c_p); } apply_bif_or_nif_epilogue: ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p); ERTS_HOLE_CHECK(c_p); if (c_p->mbuf) { - reg[0] = r(0); nif_bif_result = erts_gc_after_bif_call(c_p, nif_bif_result, reg, bif_nif_arity); - r(0) = reg[0]; } SWAPIN; /* There might have been a garbage collection. */ FCALLS = c_p->fcalls; @@ -3419,17 +3232,14 @@ void process_main(void) c_p->cp = 0; Goto(*I); } else if (c_p->freason == TRAP) { - SET_I(*((BeamInstr **) (UWord) ((c_p)->def_arg_reg + 3))); - r(0) = c_p->def_arg_reg[0]; - x(1) = c_p->def_arg_reg[1]; - x(2) = c_p->def_arg_reg[2]; + SET_I(c_p->i); + r(0) = reg[0]; if (c_p->flags & F_HIBERNATE_SCHED) { c_p->flags &= ~F_HIBERNATE_SCHED; goto do_schedule; } Dispatch(); } - reg[0] = r(0); I = handle_error(c_p, c_p->cp, reg, vbf); goto post_error_handling; } @@ -3472,7 +3282,7 @@ void process_main(void) OpCase(i_func_info_IaaI): { c_p->freason = EXC_FUNCTION_CLAUSE; c_p->current = I + 2; - goto lb_error_action_code; + goto handle_error; } OpCase(try_case_end_s): @@ -3992,8 +3802,7 @@ void process_main(void) * too big numbers). */ if (is_not_small(val) || val > make_small(0x10FFFFUL) || - (make_small(0xD800UL) <= val && val <= make_small(0xDFFFUL)) || - val == make_small(0xFFFEUL) || val == make_small(0xFFFFUL)) { + (make_small(0xD800UL) <= val && val <= make_small(0xDFFFUL))) { goto badarg; } Next(2); @@ -4012,8 +3821,8 @@ void process_main(void) * the valid range). */ if (is_not_small(tmp_arg1) || tmp_arg1 > make_small(0x10FFFFUL) || - (make_small(0xD800UL) <= tmp_arg1 && tmp_arg1 <= make_small(0xDFFFUL)) || - tmp_arg1 == make_small(0xFFFEUL) || tmp_arg1 == make_small(0xFFFFUL)) { + (make_small(0xD800UL) <= tmp_arg1 && + tmp_arg1 <= make_small(0xDFFFUL))) { ErlBinMatchBuffer *mb = ms_matchbuffer(tmp_arg2); mb->offset -= 32; @@ -4888,92 +4697,6 @@ void process_main(void) } /* - * Instructions for allocating on the message area. - */ - - OpCase(i_global_cons): - { - BeamInstr *next; -#ifdef HYBRID - Eterm *hp; - - PreFetch(0,next); - TestGlobalHeap(2,2,hp); - hp[0] = r(0); - hp[1] = x(1); - r(0) = make_list(hp); -#ifndef INCREMENTAL - global_htop += 2; -#endif - NextPF(0,next); -#else - PreFetch(0,next); - c_p->freason = EXC_INTERNAL_ERROR; - goto find_func_info; -#endif - } - - OpCase(i_global_tuple): - { - BeamInstr *next; - int len; -#ifdef HYBRID - Eterm list; - Eterm *hp; -#endif - - if ((len = list_length(r(0))) < 0) { - goto badarg; - } - - PreFetch(0,next); -#ifdef HYBRID - TestGlobalHeap(len + 1,1,hp); - list = r(0); - r(0) = make_tuple(hp); - *hp++ = make_arityval(len); - while(is_list(list)) - { - Eterm* cons = list_val(list); - *hp++ = CAR(cons); - list = CDR(cons); - } -#ifndef INCREMENTAL - global_htop += len + 1; -#endif - NextPF(0,next); -#else - c_p->freason = EXC_INTERNAL_ERROR; - goto find_func_info; -#endif - } - - OpCase(i_global_copy): - { - BeamInstr *next; - PreFetch(0,next); -#ifdef HYBRID - if (!IS_CONST(r(0))) - { - BM_SWAP_TIMER(system,copy); - SWAPOUT; - reg[0] = r(0); - reg[1] = NIL; - r(0) = copy_struct_lazy(c_p,r(0),0); - ASSERT(ma_src_top == 0); - ASSERT(ma_dst_top == 0); - ASSERT(ma_offset_top == 0); - SWAPIN; - BM_SWAP_TIMER(copy,system); - } - NextPF(0,next); -#else - c_p->freason = EXC_INTERNAL_ERROR; - goto find_func_info; -#endif - } - - /* * New floating point instructions. */ @@ -5032,7 +4755,12 @@ void process_main(void) OpCase(fclearerror): OpCase(i_fcheckerror): erl_exit(1, "fclearerror/i_fcheckerror without fpe signals (beam_emu)"); +# define ERTS_NO_FPE_CHECK_INIT ERTS_FP_CHECK_INIT +# define ERTS_NO_FPE_ERROR ERTS_FP_ERROR #else +# define ERTS_NO_FPE_CHECK_INIT(p) +# define ERTS_NO_FPE_ERROR(p, a, b) + OpCase(fclearerror): { BeamInstr *next; @@ -5048,10 +4776,6 @@ void process_main(void) ERTS_FP_ERROR(c_p, freg[0].fd, goto fbadarith); NextPF(0, next); } -# undef ERTS_FP_CHECK_INIT -# undef ERTS_FP_ERROR -# define ERTS_FP_CHECK_INIT(p) -# define ERTS_FP_ERROR(p, a, b) #endif @@ -5059,45 +4783,45 @@ void process_main(void) BeamInstr *next; PreFetch(3, next); - ERTS_FP_CHECK_INIT(c_p); + ERTS_NO_FPE_CHECK_INIT(c_p); fb(Arg(2)) = fb(Arg(0)) + fb(Arg(1)); - ERTS_FP_ERROR(c_p, fb(Arg(2)), goto fbadarith); + ERTS_NO_FPE_ERROR(c_p, fb(Arg(2)), goto fbadarith); NextPF(3, next); } OpCase(i_fsub_lll): { BeamInstr *next; PreFetch(3, next); - ERTS_FP_CHECK_INIT(c_p); + ERTS_NO_FPE_CHECK_INIT(c_p); fb(Arg(2)) = fb(Arg(0)) - fb(Arg(1)); - ERTS_FP_ERROR(c_p, fb(Arg(2)), goto fbadarith); + ERTS_NO_FPE_ERROR(c_p, fb(Arg(2)), goto fbadarith); NextPF(3, next); } OpCase(i_fmul_lll): { BeamInstr *next; PreFetch(3, next); - ERTS_FP_CHECK_INIT(c_p); + ERTS_NO_FPE_CHECK_INIT(c_p); fb(Arg(2)) = fb(Arg(0)) * fb(Arg(1)); - ERTS_FP_ERROR(c_p, fb(Arg(2)), goto fbadarith); + ERTS_NO_FPE_ERROR(c_p, fb(Arg(2)), goto fbadarith); NextPF(3, next); } OpCase(i_fdiv_lll): { BeamInstr *next; PreFetch(3, next); - ERTS_FP_CHECK_INIT(c_p); + ERTS_NO_FPE_CHECK_INIT(c_p); fb(Arg(2)) = fb(Arg(0)) / fb(Arg(1)); - ERTS_FP_ERROR(c_p, fb(Arg(2)), goto fbadarith); + ERTS_NO_FPE_ERROR(c_p, fb(Arg(2)), goto fbadarith); NextPF(3, next); } OpCase(i_fnegate_ll): { BeamInstr *next; PreFetch(2, next); - ERTS_FP_CHECK_INIT(c_p); + ERTS_NO_FPE_CHECK_INIT(c_p); fb(Arg(1)) = -fb(Arg(0)); - ERTS_FP_ERROR(c_p, fb(Arg(1)), goto fbadarith); + ERTS_NO_FPE_ERROR(c_p, fb(Arg(1)), goto fbadarith); NextPF(2, next); fbadarith: @@ -5151,10 +4875,8 @@ void process_main(void) c_p->def_arg_reg[4] = -neg_o_reds; reg[0] = r(0); c_p = hipe_mode_switch(c_p, cmd, reg); -#ifdef ERTS_SMP - reg = c_p->scheduler_data->save_reg; - freg = c_p->scheduler_data->freg; -#endif + reg = ERTS_PROC_GET_SCHDATA(c_p)->x_reg_array; + freg = ERTS_PROC_GET_SCHDATA(c_p)->f_reg_array; ERL_BITS_RELOAD_STATEP(c_p); neg_o_reds = -c_p->def_arg_reg[4]; FCALLS = c_p->fcalls; @@ -5246,7 +4968,7 @@ void process_main(void) if (I) { Goto(*I); } - goto no_error_handler; + goto handle_error; } @@ -5268,8 +4990,8 @@ void process_main(void) OpCase(int_code_end): OpCase(label_L): - OpCase(too_old_compiler): OpCase(on_load): + OpCase(line_I): erl_exit(1, "meta op\n"); /* @@ -5686,6 +5408,25 @@ expand_error_value(Process* c_p, Uint freason, Eterm Value) { * that c_p->ftrace will point to a cons cell which holds the given args * and the saved data (encoded as a bignum). * + * There is an issue with line number information. Line number + * information is associated with the address *before* an operation + * that may fail or be stored stored on the stack. But continuation + * pointers point after its call instruction, not before. To avoid + * finding the wrong line number, we'll need to adjust them so that + * they point at the beginning of the call instruction or inside the + * call instruction. Since its impractical to point at the beginning, + * we'll do the simplest thing and decrement the continuation pointers + * by one. + * + * Here is an example of what can go wrong. Without the adjustment + * of continuation pointers, the call at line 42 below would seem to + * be at line 43: + * + * line 42 + * call ... + * line 43 + * gc_bif ... + * * (It would be much better to put the arglist - when it exists - in the * error value instead of in the actual trace; e.g. '{badarg, Args}' * instead of using 'badarg' with Args in the trace. The arglist may @@ -5752,7 +5493,7 @@ save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, } /* Save second stack entry if CP is valid and different from pc */ if (depth > 0 && c_p->cp != 0 && c_p->cp != pc) { - s->trace[s->depth++] = c_p->cp; + s->trace[s->depth++] = c_p->cp - 1; depth--; } s->pc = NULL; @@ -5772,13 +5513,13 @@ save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, /* Save first stack entry */ ASSERT(c_p->cp); if (depth > 0) { - s->trace[s->depth++] = c_p->cp; + s->trace[s->depth++] = c_p->cp - 1; depth--; } s->pc = NULL; /* Ignore pc */ } else { if (depth > 0 && c_p->cp != 0 && c_p->cp != pc) { - s->trace[s->depth++] = c_p->cp; + s->trace[s->depth++] = c_p->cp - 1; depth--; } s->pc = pc; @@ -5793,24 +5534,31 @@ save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, } /* Save the actual stack trace */ + erts_save_stacktrace(c_p, s, depth); +} + +void +erts_save_stacktrace(Process* p, struct StackTrace* s, int depth) +{ if (depth > 0) { Eterm *ptr; BeamInstr *prev = s->depth ? s->trace[s->depth-1] : NULL; BeamInstr i_return_trace = beam_return_trace[0]; BeamInstr i_return_to_trace = beam_return_to_trace[0]; + /* * Traverse the stack backwards and add all unique continuation * pointers to the buffer, up to the maximum stack trace size. * * Skip trace stack frames. */ - ptr = c_p->stop; - if (ptr < STACK_START(c_p) - && (is_not_CP(*ptr)|| (*cp_val(*ptr) != i_return_trace && - *cp_val(*ptr) != i_return_to_trace)) - && c_p->cp) { - /* Can not follow cp here - code may be unloaded */ - BeamInstr *cpp = c_p->cp; + ptr = p->stop; + if (ptr < STACK_START(p) && + (is_not_CP(*ptr)|| (*cp_val(*ptr) != i_return_trace && + *cp_val(*ptr) != i_return_to_trace)) && + p->cp) { + /* Cannot follow cp here - code may be unloaded */ + BeamInstr *cpp = p->cp; if (cpp == beam_exception_trace || cpp == beam_return_trace) { /* Skip return_trace parameters */ ptr += 2; @@ -5819,7 +5567,7 @@ save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, ptr += 1; } } - while (ptr < STACK_START(c_p) && depth > 0) { + while (ptr < STACK_START(p) && depth > 0) { if (is_CP(*ptr)) { if (*cp_val(*ptr) == i_return_trace) { /* Skip stack frame variables */ @@ -5834,7 +5582,7 @@ save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg, BifFunction bf, if (cp != prev) { /* Record non-duplicates only */ prev = cp; - s->trace[s->depth++] = cp; + s->trace[s->depth++] = cp - 1; depth--; } ptr++; @@ -5902,9 +5650,14 @@ build_stacktrace(Process* c_p, Eterm exc) { struct StackTrace* s; Eterm args; int depth; - BeamInstr* current; - Eterm Where = NIL; - Eterm *next_p = &Where; + FunctionInfo fi; + FunctionInfo* stk; + FunctionInfo* stkp; + Eterm res = NIL; + Uint heap_size; + Eterm* hp; + Eterm mfa; + int i; if (! (s = get_trace_from_exc(exc))) { return NIL; @@ -5923,64 +5676,56 @@ build_stacktrace(Process* c_p, Eterm exc) { * saved s->current should already contain the proper value. */ if (s->pc != NULL) { - current = find_function_from_pc(s->pc); + erts_lookup_function_info(&fi, s->pc, 1); + } else if (GET_EXC_INDEX(s->freason) == + GET_EXC_INDEX(EXC_FUNCTION_CLAUSE)) { + erts_lookup_function_info(&fi, s->current, 1); } else { - current = s->current; + erts_set_current_function(&fi, s->current); } + /* - * If current is still NULL, default to the initial function + * If fi.current is still NULL, default to the initial function * (e.g. spawn_link(erlang, abs, [1])). */ - if (current == NULL) { - current = c_p->initial; + if (fi.current == NULL) { + erts_set_current_function(&fi, c_p->initial); args = am_true; /* Just in case */ } else { args = get_args_from_exc(exc); } - depth = s->depth; - /* - * Add the {M,F,A} for the current function - * (where A is arity or [Argument]). + * Look up all saved continuation pointers and calculate + * needed heap space. */ - { - int i; - Eterm mfa; - Uint heap_size = 6*(depth+1); - Eterm* hp = HAlloc(c_p, heap_size); - Eterm* hp_end = hp + heap_size; - - if (args != am_true) { - /* We have an arglist - use it */ - mfa = TUPLE3(hp, current[0], current[1], args); - } else { - Eterm arity = make_small(current[2]); - mfa = TUPLE3(hp, current[0], current[1], arity); + depth = s->depth; + stk = stkp = (FunctionInfo *) erts_alloc(ERTS_ALC_T_TMP, + depth*sizeof(FunctionInfo)); + heap_size = fi.needed + 2; + for (i = 0; i < depth; i++) { + erts_lookup_function_info(stkp, s->trace[i], 1); + if (stkp->current) { + heap_size += stkp->needed + 2; + stkp++; } - hp += 4; - ASSERT(*next_p == NIL); - *next_p = CONS(hp, mfa, NIL); - next_p = &CDR(list_val(*next_p)); - hp += 2; + } - /* - * Finally, we go through the saved continuation pointers. - */ - for (i = 0; i < depth; i++) { - BeamInstr *fi = find_function_from_pc((BeamInstr *) s->trace[i]); - if (fi == NULL) continue; - mfa = TUPLE3(hp, fi[0], fi[1], make_small(fi[2])); - hp += 4; - ASSERT(*next_p == NIL); - *next_p = CONS(hp, mfa, NIL); - next_p = &CDR(list_val(*next_p)); - hp += 2; - } - ASSERT(hp <= hp_end); - HRelease(c_p, hp_end, hp); + /* + * Allocate heap space and build the stacktrace. + */ + hp = HAlloc(c_p, heap_size); + while (stkp > stk) { + stkp--; + hp = erts_build_mfa_item(stkp, hp, am_true, &mfa); + res = CONS(hp, mfa, res); + hp += 2; } - return Where; + hp = erts_build_mfa_item(&fi, hp, args, &mfa); + res = CONS(hp, mfa, res); + + erts_free(ERTS_ALC_T_TMP, (void *) stk); + return res; } @@ -6450,6 +6195,26 @@ call_fun(Process* p, /* Current process. */ if (!is_atom(module) || !is_atom(function)) { goto badfun; } + + /* + * If this is the first time a tuple fun is used, + * send a warning to the logger. + */ + if (erts_smp_atomic_xchg_nob(&warned_for_tuple_funs, + (erts_aint_t) 1) == 0) { + erts_dsprintf_buf_t* dsbufp; + + dsbufp = erts_create_logger_dsbuf(); + erts_dsprintf(dsbufp, "Call to tuple fun {%T,%T}.\n\n" + "Tuple funs are deprecated and will be removed " + "in R16. Use \"fun M:F/A\" instead, for example " + "\"fun %T:%T/%d\".\n\n" + "(This warning will only be shown the first time " + "a tuple fun is called.)\n", + module, function, module, function, arity); + erts_send_warning_to_logger(p->group_leader, dsbufp); + } + if ((ep = erts_find_export_entry(module, function, arity)) == NULL) { ep = erts_find_export_entry(erts_proc_get_error_handler(p), am_undefined_function, 3); |