diff options
Diffstat (limited to 'erts/emulator/beam/external.c')
-rw-r--r-- | erts/emulator/beam/external.c | 146 |
1 files changed, 54 insertions, 92 deletions
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index 656de7c49a..9b9b4b2a62 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -44,9 +44,6 @@ #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 +108,17 @@ 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; } @@ -1069,6 +1057,8 @@ 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 +1071,8 @@ 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 +1177,8 @@ typedef struct B2TContext_t { Uint32 flags; SWord reds; Eterm trap_bin; + Export *bif; + Eterm arg[2]; enum B2TState state; union { B2TSizeContext sc; @@ -1356,7 +1350,8 @@ 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 +1386,10 @@ 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 +1406,9 @@ 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 +1504,24 @@ 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 +1536,8 @@ 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 +1554,24 @@ 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 +1592,8 @@ 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); @@ -1902,6 +1925,7 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla } real_size = endp - bytes; result_bin = erts_bin_realloc(context->s.ec.result_bin,real_size); + result_bin->orig_size = real_size; level = context->s.ec.level; BUMP_REDS(p, (initial_reds - reds) / TERM_TO_BINARY_LOOP_FACTOR); if (level == 0 || real_size < 6) { /* We are done */ @@ -1981,6 +2005,7 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla erl_zlib_deflate_finish(&(context->s.cc.stream)); result_bin = erts_bin_realloc(context->s.cc.destination_bin, context->s.cc.dest_len+6); + result_bin->orig_size = context->s.cc.dest_len+6; context->s.cc.destination_bin = NULL; pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE); pb->thing_word = HEADER_PROC_BIN; @@ -4440,66 +4465,3 @@ 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*/ |