diff options
Diffstat (limited to 'erts/emulator/beam/external.c')
-rw-r--r-- | erts/emulator/beam/external.c | 361 |
1 files changed, 161 insertions, 200 deletions
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 656de7c49a..601cbe9d7d 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -36,7 +36,9 @@ #include "erl_process.h" #include "error.h" #include "external.h" +#define ERL_WANT_HIPE_BIF_WRAPPER__ #include "bif.h" +#undef ERL_WANT_HIPE_BIF_WRAPPER__ #include "big.h" #include "dist.h" #include "erl_binary.h" @@ -44,9 +46,6 @@ #include "erl_zlib.h" #include "erl_map.h" -#ifdef HIPE -#include "hipe_mode_switch.h" -#endif #define in_area(ptr,start,nbytes) ((UWord)((char*)(ptr) - (char*)(start)) < (nbytes)) #define MAX_STRING_LEN 0xffff @@ -111,26 +110,17 @@ static int encode_size_struct_int(struct TTBSizeContext_*, ErtsAtomCacheMap *acm static Export binary_to_term_trap_export; static BIF_RETTYPE binary_to_term_trap_1(BIF_ALIST_1); -static Eterm binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* context_b); +static BIF_RETTYPE binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* context_b, + Export *bif, Eterm arg0, Eterm arg1); void erts_init_external(void) { -#if 1 /* In R16 */ erts_init_trap_export(&term_to_binary_trap_export, - am_erlang, am_term_to_binary_trap, 1, + am_erts_internal, am_term_to_binary_trap, 1, &term_to_binary_trap_1); erts_init_trap_export(&binary_to_term_trap_export, - am_erlang, am_binary_to_term_trap, 1, + am_erts_internal, am_binary_to_term_trap, 1, &binary_to_term_trap_1); -#else - sys_memset((void *) &term_to_binary_trap_export, 0, sizeof(Export)); - term_to_binary_trap_export.address = &term_to_binary_trap_export.code[3]; - term_to_binary_trap_export.code[0] = am_erlang; - term_to_binary_trap_export.code[1] = am_term_to_binary_trap; - term_to_binary_trap_export.code[2] = 1; - term_to_binary_trap_export.code[3] = (BeamInstr) em_apply_bif; - term_to_binary_trap_export.code[4] = (BeamInstr) &term_to_binary_trap_1; -#endif return; } @@ -510,15 +500,37 @@ byte *erts_encode_ext_dist_header_finalize(byte *ext, ErtsAtomCache *cache, Uint return ep; } -Uint erts_encode_dist_ext_size(Eterm term, Uint32 flags, ErtsAtomCacheMap *acmp) +int erts_encode_dist_ext_size(Eterm term, Uint32 flags, ErtsAtomCacheMap *acmp, + Uint* szp) { - Uint sz = 0; + Uint sz; + if (encode_size_struct_int(NULL, acmp, term, flags, NULL, &sz)) { + return -1; + } else { #ifndef ERTS_DEBUG_USE_DIST_SEP - if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) + if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) #endif - sz++ /* VERSION_MAGIC */; - sz += encode_size_struct2(acmp, term, flags); - return sz; + sz++ /* VERSION_MAGIC */; + + *szp += sz; + return 0; + } +} + +int erts_encode_dist_ext_size_int(Eterm term, struct erts_dsig_send_context* ctx, Uint* szp) +{ + Uint sz; + if (encode_size_struct_int(&ctx->u.sc, ctx->acmp, term, ctx->flags, &ctx->reds, &sz)) { + return -1; + } else { +#ifndef ERTS_DEBUG_USE_DIST_SEP + if (!(ctx->flags & DFLAG_DIST_HDR_ATOM_CACHE)) +#endif + sz++ /* VERSION_MAGIC */; + + *szp += sz; + return 0; + } } Uint erts_encode_ext_size(Eterm term) @@ -539,19 +551,16 @@ Uint erts_encode_ext_size_ets(Eterm term) } -void erts_encode_dist_ext(Eterm term, byte **ext, Uint32 flags, ErtsAtomCacheMap *acmp) +int erts_encode_dist_ext(Eterm term, byte **ext, Uint32 flags, ErtsAtomCacheMap *acmp, + TTBEncodeContext* ctx, Sint* reds) { - byte *ep = *ext; -#ifndef ERTS_DEBUG_USE_DIST_SEP - if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) -#endif - *ep++ = VERSION_MAGIC; - ep = enc_term(acmp, term, ep, flags, NULL); - if (!ep) - erl_exit(ERTS_ABORT_EXIT, - "%s:%d:erts_encode_dist_ext(): Internal data structure error\n", - __FILE__, __LINE__); - *ext = ep; + if (!ctx || !ctx->wstack.wstart) { + #ifndef ERTS_DEBUG_USE_DIST_SEP + if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE)) + #endif + *(*ext)++ = VERSION_MAGIC; + } + return enc_term_int(ctx, acmp, term, *ext, flags, NULL, reds, ext); } void erts_encode_ext(Eterm term, byte **ext) @@ -1069,6 +1078,8 @@ static BIF_RETTYPE term_to_binary_trap_1(BIF_ALIST_1) } } +HIPE_WRAPPER_BIF_DISABLE_GC(term_to_binary, 1) + BIF_RETTYPE term_to_binary_1(BIF_ALIST_1) { Eterm res = erts_term_to_binary_int(BIF_P, BIF_ARG_1, 0, TERM_TO_BINARY_DFLAGS, NULL); @@ -1081,6 +1092,8 @@ BIF_RETTYPE term_to_binary_1(BIF_ALIST_1) } } +HIPE_WRAPPER_BIF_DISABLE_GC(term_to_binary, 2) + BIF_RETTYPE term_to_binary_2(BIF_ALIST_2) { Process* p = BIF_P; @@ -1185,6 +1198,8 @@ typedef struct B2TContext_t { Uint32 flags; SWord reds; Eterm trap_bin; + Export *bif; + Eterm arg[2]; enum B2TState state; union { B2TSizeContext sc; @@ -1356,7 +1371,8 @@ static BIF_RETTYPE binary_to_term_trap_1(BIF_ALIST_1) Binary *context_bin = ((ProcBin *) binary_val(BIF_ARG_1))->val; ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(context_bin) == b2t_context_destructor); - return binary_to_term_int(BIF_P, 0, THE_NON_VALUE, context_bin); + return binary_to_term_int(BIF_P, 0, THE_NON_VALUE, context_bin, NULL, + THE_NON_VALUE, THE_NON_VALUE); } @@ -1391,8 +1407,10 @@ static B2TContext* b2t_export_context(Process* p, B2TContext* src) return ctx; } -static Eterm binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* context_b) +static BIF_RETTYPE binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* context_b, + Export *bif_init, Eterm arg0, Eterm arg1) { + BIF_RETTYPE ret_val; #ifdef EXTREME_B2T_TRAPPING SWord initial_reds = 1 + b2t_rand() % 4; #else @@ -1409,6 +1427,9 @@ static Eterm binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* con ctx->state = B2TPrepare; ctx->aligned_alloc = NULL; ctx->flags = flags; + ctx->bif = bif_init; + ctx->arg[0] = arg0; + ctx->arg[1] = arg1; IF_DEBUG(ctx->trap_bin = THE_NON_VALUE;) } else { is_first_call = 0; @@ -1504,12 +1525,24 @@ static Eterm binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* con HRelease(p, ctx->u.dc.hp_end, ctx->u.dc.hp_start); /*fall through*/ case B2TBadArg: - b2t_destroy_context(ctx); - if (!is_first_call) { - erts_set_gc_state(p, 1); - } BUMP_REDS(p, (initial_reds - ctx->reds) / B2T_BYTES_PER_REDUCTION); - BIF_ERROR(p, BADARG & ~EXF_SAVETRACE); + + ASSERT(ctx->bif == bif_export[BIF_binary_to_term_1] + || ctx->bif == bif_export[BIF_binary_to_term_2]); + + if (is_first_call) + ERTS_BIF_PREP_ERROR(ret_val, p, BADARG); + else { + erts_set_gc_state(p, 1); + if (is_non_value(ctx->arg[1])) + ERTS_BIF_PREP_ERROR_TRAPPED1(ret_val, p, BADARG, ctx->bif, + ctx->arg[0]); + else + ERTS_BIF_PREP_ERROR_TRAPPED2(ret_val, p, BADARG, ctx->bif, + ctx->arg[0], ctx->arg[1]); + } + b2t_destroy_context(ctx); + return ret_val; case B2TDone: b2t_destroy_context(ctx); @@ -1524,7 +1557,8 @@ static Eterm binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* con erts_set_gc_state(p, 1); } BUMP_REDS(p, (initial_reds - ctx->reds) / B2T_BYTES_PER_REDUCTION); - return ctx->u.dc.res; + ERTS_BIF_PREP_RET(ret_val, ctx->u.dc.res); + return ret_val; default: ASSERT(!"Unknown state in binary_to_term"); @@ -1541,15 +1575,24 @@ static Eterm binary_to_term_int(Process* p, Uint32 flags, Eterm bin, Binary* con erts_set_gc_state(p, 0); } BUMP_ALL_REDS(p); - BIF_TRAP1(&binary_to_term_trap_export, p, ctx->trap_bin); + + ERTS_BIF_PREP_TRAP1(ret_val, &binary_to_term_trap_export, + p, ctx->trap_bin); + + return ret_val; } -BIF_RETTYPE erts_internal_binary_to_term_1(BIF_ALIST_1) +HIPE_WRAPPER_BIF_DISABLE_GC(binary_to_term, 1) + +BIF_RETTYPE binary_to_term_1(BIF_ALIST_1) { - return binary_to_term_int(BIF_P, 0, BIF_ARG_1, NULL); + return binary_to_term_int(BIF_P, 0, BIF_ARG_1, NULL, bif_export[BIF_binary_to_term_1], + BIF_ARG_1, THE_NON_VALUE); } -BIF_RETTYPE erts_internal_binary_to_term_2(BIF_ALIST_2) +HIPE_WRAPPER_BIF_DISABLE_GC(binary_to_term, 2) + +BIF_RETTYPE binary_to_term_2(BIF_ALIST_2) { Eterm opts; Eterm opt; @@ -1570,7 +1613,8 @@ BIF_RETTYPE erts_internal_binary_to_term_2(BIF_ALIST_2) if (is_not_nil(opts)) goto error; - return binary_to_term_int(BIF_P, flags, BIF_ARG_1, NULL); + return binary_to_term_int(BIF_P, flags, BIF_ARG_1, NULL, bif_export[BIF_binary_to_term_2], + BIF_ARG_1, BIF_ARG_2); error: BIF_ERROR(BIF_P, BADARG); @@ -1717,54 +1761,14 @@ erts_term_to_binary(Process* p, Eterm Term, int level, Uint flags) { return erts_term_to_binary_simple(p, Term, size, level, flags); } -/* Define for testing */ -/* #define EXTREME_TTB_TRAPPING 1 */ +/* Define EXTREME_TTB_TRAPPING for testing in dist.h */ #ifndef EXTREME_TTB_TRAPPING -#define TERM_TO_BINARY_LOOP_FACTOR 32 #define TERM_TO_BINARY_COMPRESS_CHUNK (1 << 18) #else -#define TERM_TO_BINARY_LOOP_FACTOR 1 #define TERM_TO_BINARY_COMPRESS_CHUNK 10 #endif - - -typedef enum { TTBSize, TTBEncode, TTBCompress } TTBState; -typedef struct TTBSizeContext_ { - Uint flags; - int level; - Uint result; - Eterm obj; - ErtsEStack estack; -} TTBSizeContext; - -typedef struct TTBEncodeContext_ { - Uint flags; - int level; - byte* ep; - Eterm obj; - ErtsWStack wstack; - Binary *result_bin; -} TTBEncodeContext; - -typedef struct { - Uint real_size; - Uint dest_len; - byte *dbytes; - Binary *result_bin; - Binary *destination_bin; - z_stream stream; -} TTBCompressContext; - -typedef struct { - int alive; - TTBState state; - union { - TTBSizeContext sc; - TTBEncodeContext ec; - TTBCompressContext cc; - } s; -} TTBContext; +#define TERM_TO_BINARY_MEMCPY_FACTOR 8 static void ttb_context_destructor(Binary *context_bin) { @@ -1876,8 +1880,6 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla } result_bin = erts_bin_nrml_alloc(size); - result_bin->flags = 0; - result_bin->orig_size = size; erts_refc_init(&result_bin->refc, 0); result_bin->orig_bytes[0] = VERSION_MAGIC; /* Next state immediately, no need to export context */ @@ -1938,8 +1940,6 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla context->s.cc.result_bin = result_bin; result_bin = erts_bin_nrml_alloc(real_size); - result_bin->flags = 0; - result_bin->orig_size = real_size; erts_refc_init(&result_bin->refc, 0); result_bin->orig_bytes[0] = VERSION_MAGIC; @@ -2302,8 +2302,9 @@ dec_pid(ErtsDistExternal *edep, Eterm** hpp, byte* ep, ErlOffHeap* off_heap, Ete #define ENC_TERM ((Eterm) 0) #define ENC_ONE_CONS ((Eterm) 1) #define ENC_PATCH_FUN_SIZE ((Eterm) 2) -#define ENC_LAST_ARRAY_ELEMENT ((Eterm) 3) - +#define ENC_BIN_COPY ((Eterm) 3) +#define ENC_MAP_PAIR ((Eterm) 4) +#define ENC_LAST_ARRAY_ELEMENT ((Eterm) 5) static byte* enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags, @@ -2339,6 +2340,9 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, WSTACK_RESTORE(s, &ctx->wstack); ep = ctx->ep; obj = ctx->obj; + if (is_non_value(obj)) { + goto outer_loop; + } } } @@ -2362,8 +2366,8 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, obj = CAR(cons); tl = CDR(cons); - WSTACK_PUSH(s, is_list(tl) ? ENC_ONE_CONS : ENC_TERM); - WSTACK_PUSH(s, tl); + WSTACK_PUSH2(s, (is_list(tl) ? ENC_ONE_CONS : ENC_TERM), + tl); } break; case ENC_PATCH_FUN_SIZE: @@ -2376,6 +2380,39 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, put_int32(ep - size_p, size_p); } goto outer_loop; + case ENC_BIN_COPY: { + Uint bits = (Uint)obj; + Uint bitoffs = WSTACK_POP(s); + byte* bytes = (byte*) WSTACK_POP(s); + byte* dst = (byte*) WSTACK_POP(s); + if (bits > r * (TERM_TO_BINARY_MEMCPY_FACTOR * 8)) { + Uint n = r * TERM_TO_BINARY_MEMCPY_FACTOR; + WSTACK_PUSH5(s, (UWord)(dst + n), (UWord)(bytes + n), bitoffs, + ENC_BIN_COPY, bits - 8*n); + bits = 8*n; + copy_binary_to_buffer(dst, 0, bytes, bitoffs, bits); + obj = THE_NON_VALUE; + r = 0; /* yield */ + break; + } else { + copy_binary_to_buffer(dst, 0, bytes, bitoffs, bits); + r -= bits / (TERM_TO_BINARY_MEMCPY_FACTOR * 8); + goto outer_loop; + } + } + case ENC_MAP_PAIR: { + Uint pairs_left = obj; + Eterm *vptr = (Eterm*) WSTACK_POP(s); + Eterm *kptr = (Eterm*) WSTACK_POP(s); + + obj = *kptr; + if (--pairs_left > 0) { + WSTACK_PUSH4(s, (UWord)(kptr+1), (UWord)(vptr+1), + ENC_MAP_PAIR, pairs_left); + } + WSTACK_PUSH2(s, ENC_TERM, *vptr); + break; + } case ENC_LAST_ARRAY_ELEMENT: /* obj is the tuple */ { @@ -2394,17 +2431,16 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, #else Eterm* ptr = (Eterm *) obj; #endif - WSTACK_PUSH(s, val-1); obj = *ptr++; - WSTACK_PUSH(s, (UWord)ptr); + WSTACK_PUSH2(s, val-1, (UWord)ptr); } break; } L_jump_start: - if (ctx && --r == 0) { - *reds = r; + if (ctx && --r <= 0) { + *reds = 0; ctx->obj = obj; ctx->ep = ep; WSTACK_SAVE(s, &ctx->wstack); @@ -2553,8 +2589,7 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, ep += 4; } if (i > 0) { - WSTACK_PUSH(s, ENC_LAST_ARRAY_ELEMENT+i-1); - WSTACK_PUSH(s, (UWord)ptr); + WSTACK_PUSH2(s, ENC_LAST_ARRAY_ELEMENT+i-1, (UWord)ptr); } break; @@ -2570,18 +2605,8 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Eterm *kptr = map_get_keys(mp); Eterm *vptr = map_get_values(mp); - for (i = size-1; i >= 1; i--) { - WSTACK_PUSH(s, ENC_TERM); - WSTACK_PUSH(s, (UWord) vptr[i]); - WSTACK_PUSH(s, ENC_TERM); - WSTACK_PUSH(s, (UWord) kptr[i]); - } - - WSTACK_PUSH(s, ENC_TERM); - WSTACK_PUSH(s, (UWord) vptr[0]); - - obj = kptr[0]; - goto L_jump_start; + WSTACK_PUSH4(s, (UWord)kptr, (UWord)vptr, + ENC_MAP_PAIR, size); } } break; @@ -2619,6 +2644,7 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint bitoffs; Uint bitsize; byte* bytes; + byte* data_dst; ERTS_GET_BINARY_BYTES(obj, bytes, bitoffs, bitsize); if (dflags & DFLAG_INTERNAL_TAGS) { @@ -2664,7 +2690,7 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, j = binary_size(obj); put_int32(j, ep); ep += 4; - copy_binary_to_buffer(ep, 0, bytes, bitoffs, 8*j); + data_dst = ep; ep += j; } else if (dflags & DFLAG_BIT_BINARIES) { /* Bit-level binary. */ @@ -2674,7 +2700,7 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, ep += 4; *ep++ = bitsize; ep[j] = 0; /* Zero unused bits at end of binary */ - copy_binary_to_buffer(ep, 0, bytes, bitoffs, 8*j+bitsize); + data_dst = ep; ep += j + 1; } else { /* @@ -2688,11 +2714,18 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, put_int32((j+1), ep); ep += 4; ep[j] = 0; /* Zero unused bits at end of binary */ - copy_binary_to_buffer(ep, 0, bytes, bitoffs, 8*j+bitsize); + data_dst = ep; ep += j+1; *ep++ = SMALL_INTEGER_EXT; *ep++ = bitsize; } + if (ctx && j > r * TERM_TO_BINARY_MEMCPY_FACTOR) { + WSTACK_PUSH5(s, (UWord)data_dst, (UWord)bytes, bitoffs, + ENC_BIN_COPY, 8*j + bitsize); + } else { + copy_binary_to_buffer(data_dst, 0, bytes, bitoffs, + 8 * j + bitsize); + } } break; case EXPORT_DEF: @@ -2721,13 +2754,12 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, case FUN_DEF: { ErlFunThing* funp = (ErlFunThing *) fun_val(obj); + int ei; if ((dflags & DFLAG_NEW_FUN_TAGS) != 0) { - int ei; - *ep++ = NEW_FUN_EXT; - WSTACK_PUSH(s, ENC_PATCH_FUN_SIZE); - WSTACK_PUSH(s, (UWord) ep); /* Position for patching in size */ + WSTACK_PUSH2(s, ENC_PATCH_FUN_SIZE, + (UWord) ep); /* Position for patching in size */ ep += 4; *ep = funp->arity; ep += 1; @@ -2741,16 +2773,6 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, ep = enc_term(acmp, make_small(funp->fe->old_index), ep, dflags, off_heap); ep = enc_term(acmp, make_small(funp->fe->old_uniq), ep, dflags, off_heap); ep = enc_pid(acmp, funp->creator, ep, dflags); - - fun_env: - for (ei = funp->num_free-1; ei > 0; ei--) { - WSTACK_PUSH(s, ENC_TERM); - WSTACK_PUSH(s, (UWord) funp->env[ei]); - } - if (funp->num_free != 0) { - obj = funp->env[0]; - goto L_jump_start; - } } else { /* * Communicating with an obsolete erl_interface or @@ -2782,7 +2804,13 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, *ep++ = SMALL_TUPLE_EXT; put_int8(funp->num_free, ep); ep += 1; - goto fun_env; + } + for (ei = funp->num_free-1; ei > 0; ei--) { + WSTACK_PUSH2(s, ENC_TERM, (UWord) funp->env[ei]); + } + if (funp->num_free != 0) { + obj = funp->env[0]; + goto L_jump_start; } } break; @@ -3362,8 +3390,6 @@ dec_term_atom_common: } else { Binary* dbin = erts_bin_nrml_alloc(n); ProcBin* pb; - dbin->flags = 0; - dbin->orig_size = n; erts_refc_init(&dbin->refc, 1); pb = (ProcBin *) hp; hp += PROC_BIN_SIZE; @@ -3416,8 +3442,6 @@ dec_term_atom_common: Binary* dbin = erts_bin_nrml_alloc(n); ProcBin* pb; - dbin->flags = 0; - dbin->orig_size = n; erts_refc_init(&dbin->refc, 1); pb = (ProcBin *) hp; pb->thing_word = HEADER_PROC_BIN; @@ -4440,66 +4464,3 @@ error: #undef SKIP2 #undef CHKSIZE } - - -#ifdef HIPE -BIF_RETTYPE hipe_wrapper_term_to_binary_1(BIF_ALIST_1); -BIF_RETTYPE hipe_wrapper_term_to_binary_2(BIF_ALIST_2); -BIF_RETTYPE hipe_wrapper_erts_internal_binary_to_term_1(BIF_ALIST_1); -BIF_RETTYPE hipe_wrapper_erts_internal_binary_to_term_2(BIF_ALIST_2); - -/* Hipe wrappers used by native code for BIFs that disable GC while trapping. - * - * 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. - */ -BIF_RETTYPE hipe_wrapper_term_to_binary_1(BIF_ALIST_1) -{ - Eterm res; - hipe_reserve_beam_trap_frame(BIF_P, BIF__ARGS, 1); - res = term_to_binary_1(BIF_P, BIF__ARGS); - if (is_value(res) || BIF_P->freason != TRAP) { - hipe_unreserve_beam_trap_frame(BIF_P); - } - return res; -} -BIF_RETTYPE hipe_wrapper_term_to_binary_2(BIF_ALIST_2) -{ - Eterm res; - hipe_reserve_beam_trap_frame(BIF_P, BIF__ARGS, 2); - res = term_to_binary_2(BIF_P, BIF__ARGS); - if (is_value(res) || BIF_P->freason != TRAP) { - hipe_unreserve_beam_trap_frame(BIF_P); - } - return res; -} -BIF_RETTYPE hipe_wrapper_erts_internal_binary_to_term_1(BIF_ALIST_1) -{ - Eterm res; - hipe_reserve_beam_trap_frame(BIF_P, BIF__ARGS, 1); - res = erts_internal_binary_to_term_1(BIF_P, BIF__ARGS); - if (is_value(res) || BIF_P->freason != TRAP) { - hipe_unreserve_beam_trap_frame(BIF_P); - } - return res; -} -BIF_RETTYPE hipe_wrapper_erts_internal_binary_to_term_2(BIF_ALIST_2) -{ - Eterm res; - hipe_reserve_beam_trap_frame(BIF_P, BIF__ARGS, 2); - res = erts_internal_binary_to_term_2(BIF_P, BIF__ARGS); - if (is_value(res) || BIF_P->freason != TRAP) { - hipe_unreserve_beam_trap_frame(BIF_P); - } - return res; -} -#endif /*HIPE*/ |