/* * %CopyrightBegin% * * Copyright Ericsson AB 2003-2016. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * %CopyrightEnd% */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "sys.h" #include "erl_vm.h" #include "global.h" #include "erl_process.h" #include "error.h" #include "bif.h" #include "erl_db.h" #include "dist.h" #include "beam_catches.h" #include "erl_binary.h" #define ERTS_WANT_EXTERNAL_TAGS #include "external.h" #define PTR_FMT "%bpX" #define ETERM_FMT "%beX" #define OUR_NIL _make_header(0,_TAG_HEADER_FLOAT) static void dump_process_info(int to, void *to_arg, Process *p); static void dump_element(int to, void *to_arg, Eterm x); static void dump_dist_ext(int to, void *to_arg, ErtsDistExternal *edep); static void dump_element_nl(int to, void *to_arg, Eterm x); static int stack_element_dump(int to, void *to_arg, Eterm* sp, int yreg); static void stack_trace_dump(int to, void *to_arg, Eterm* sp); static void print_function_from_pc(int to, void *to_arg, BeamInstr* x); static void heap_dump(int to, void *to_arg, Eterm x); static void dump_binaries(int to, void *to_arg, Binary* root); static void dump_externally(int to, void *to_arg, Eterm term); static Binary* all_binaries; extern BeamInstr beam_apply[]; extern BeamInstr beam_exit[]; extern BeamInstr beam_continue_exit[]; void erts_deep_process_dump(int to, void *to_arg) { int i, max = erts_ptab_max(&erts_proc); all_binaries = NULL; for (i = 0; i < max; i++) { Process *p = erts_pix2proc(i); if (p && p->i != ENULL) { erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state); if (!(state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_GC))) dump_process_info(to, to_arg, p); } } dump_binaries(to, to_arg, all_binaries); } Uint erts_process_memory(Process *p, int incl_msg_inq) { ErtsMessage *mp; Uint size = 0; struct saved_calls *scb; size += sizeof(Process); if (incl_msg_inq) ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p); erts_doforall_links(ERTS_P_LINKS(p), &erts_one_link_size, &size); erts_doforall_monitors(ERTS_P_MONITORS(p), &erts_one_mon_size, &size); size += (p->heap_sz + p->mbuf_sz) * sizeof(Eterm); if (p->old_hend && p->old_heap) size += (p->old_hend - p->old_heap) * sizeof(Eterm); size += p->msg.len * sizeof(ErtsMessage); for (mp = p->msg.first; mp; mp = mp->next) if (mp->data.attached) size += erts_msg_attached_data_size(mp)*sizeof(Eterm); if (p->arg_reg != p->def_arg_reg) { size += p->arity * sizeof(p->arg_reg[0]); } if (erts_smp_atomic_read_nob(&p->psd) != (erts_aint_t) NULL) size += sizeof(ErtsPSD); scb = ERTS_PROC_GET_SAVED_CALLS_BUF(p); if (scb) { size += (sizeof(struct saved_calls) + (scb->len-1) * sizeof(scb->ct[0])); } size += erts_dicts_mem_size(p); return size; } static void dump_process_info(int to, void *to_arg, Process *p) { Eterm* sp; ErtsMessage* mp; int yreg = -1; ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p); if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0 && p->msg.first) { erts_print(to, to_arg, "=proc_messages:%T\n", p->common.id); for (mp = p->msg.first; mp != NULL; mp = mp->next) { Eterm mesg = ERL_MESSAGE_TERM(mp); if (is_value(mesg)) dump_element(to, to_arg, mesg); else dump_dist_ext(to, to_arg, mp->data.dist_ext); mesg = ERL_MESSAGE_TOKEN(mp); erts_print(to, to_arg, ":"); dump_element(to, to_arg, mesg); erts_print(to, to_arg, "\n"); } } if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0) { if (p->dictionary) { erts_print(to, to_arg, "=proc_dictionary:%T\n", p->common.id); erts_deep_dictionary_dump(to, to_arg, p->dictionary, dump_element_nl); } } if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0) { erts_print(to, to_arg, "=proc_stack:%T\n", p->common.id); for (sp = p->stop; sp < STACK_START(p); sp++) { yreg = stack_element_dump(to, to_arg, sp, yreg); } erts_print(to, to_arg, "=proc_heap:%T\n", p->common.id); for (sp = p->stop; sp < STACK_START(p); sp++) { Eterm term = *sp; if (!is_catch(term) && !is_CP(term)) { heap_dump(to, to_arg, term); } } for (mp = p->msg.first; mp != NULL; mp = mp->next) { Eterm mesg = ERL_MESSAGE_TERM(mp); if (is_value(mesg)) heap_dump(to, to_arg, mesg); mesg = ERL_MESSAGE_TOKEN(mp); heap_dump(to, to_arg, mesg); } if (p->dictionary) { erts_deep_dictionary_dump(to, to_arg, p->dictionary, heap_dump); } } } static void dump_dist_ext(int to, void *to_arg, ErtsDistExternal *edep) { if (!edep) erts_print(to, to_arg, "D0:E0:"); else { byte *e; size_t sz; if (!(edep->flags & ERTS_DIST_EXT_ATOM_TRANS_TAB)) erts_print(to, to_arg, "D0:"); else { int i; erts_print(to, to_arg, "D%X:", edep->attab.size); for (i = 0; i < edep->attab.size; i++) dump_element(to, to_arg, edep->attab.atom[i]); } sz = edep->ext_endp - edep->extp; e = edep->extp; if (edep->flags & ERTS_DIST_EXT_DFLAG_HDR) { ASSERT(*e != VERSION_MAGIC); sz++; } else { ASSERT(*e == VERSION_MAGIC); } erts_print(to, to_arg, "E%X:", sz); if (edep->flags & ERTS_DIST_EXT_DFLAG_HDR) erts_print(to, to_arg, "%02X", VERSION_MAGIC); while (e < edep->ext_endp) erts_print(to, to_arg, "%02X", *e++); } } static void dump_element(int to, void *to_arg, Eterm x) { if (is_list(x)) { erts_print(to, to_arg, "H" PTR_FMT, list_val(x)); } else if (is_boxed(x)) { erts_print(to, to_arg, "H" PTR_FMT, boxed_val(x)); } else if (is_immed(x)) { if (is_atom(x)) { unsigned char* s = atom_tab(atom_val(x))->name; int len = atom_tab(atom_val(x))->len; int i; erts_print(to, to_arg, "A%X:", atom_tab(atom_val(x))->len); for (i = 0; i < len; i++) { erts_putc(to, to_arg, *s++); } } else if (is_small(x)) { erts_print(to, to_arg, "I%T", x); } else if (is_pid(x)) { erts_print(to, to_arg, "P%T", x); } else if (is_port(x)) { erts_print(to, to_arg, "p<%beu.%beu>", port_channel_no(x), port_number(x)); } else if (is_nil(x)) { erts_putc(to, to_arg, 'N'); } } } static void dump_element_nl(int to, void *to_arg, Eterm x) { dump_element(to, to_arg, x); erts_putc(to, to_arg, '\n'); } static void stack_trace_dump(int to, void *to_arg, Eterm *sp) { Eterm x = *sp; if (is_CP(x)) { erts_print(to, to_arg, "%p:", sp); erts_print(to, to_arg, "SReturn addr 0x%X (", cp_val(x)); print_function_from_pc(to, to_arg, cp_val(x)); erts_print(to, to_arg, ")\n"); } } void erts_limited_stack_trace(int to, void *to_arg, Process *p) { Eterm* sp; if (ERTS_TRACE_FLAGS(p) & F_SENSITIVE) { return; } if (STACK_START(p) < STACK_TOP(p)) { return; } if ((STACK_START(p) - STACK_TOP(p)) < 512) { if (erts_sys_is_area_readable((char*)STACK_TOP(p), (char*)STACK_START(p))) for (sp = STACK_TOP(p); sp < STACK_START(p); sp++) stack_trace_dump(to, to_arg, sp); else erts_print(to, to_arg, "Could not read from stack memory: %p - %p\n", STACK_TOP(p), STACK_START(p)); } else { sp = STACK_TOP(p); if (erts_sys_is_area_readable((char*)STACK_TOP(p), (char*)(STACK_TOP(p) + 25))) for (; sp < (STACK_TOP(p) + 256); sp++) stack_trace_dump(to, to_arg, sp); else erts_print(to, to_arg, "Could not read from stack memory: %p - %p\n", STACK_TOP(p), STACK_TOP(p) + 256); erts_print(to, to_arg, "%p: skipping %d frames\n", sp, STACK_START(p) - STACK_TOP(p) - 512); if (erts_sys_is_area_readable((char*)(STACK_START(p) - 256), (char*)STACK_START(p))) for (sp = STACK_START(p) - 256; sp < STACK_START(p); sp++) stack_trace_dump(to, to_arg, sp); else erts_print(to, to_arg, "Could not read from stack memory: %p - %p\n", STACK_START(p) - 256, STACK_START(p)); } } static int stack_element_dump(int to, void *to_arg, Eterm* sp, int yreg) { Eterm x = *sp; if (yreg < 0 || is_CP(x)) { erts_print(to, to_arg, "%p:", sp); } else { erts_print(to, to_arg, "y%d:", yreg); yreg++; } if (is_CP(x)) { erts_print(to, to_arg, "SReturn addr 0x%X (", cp_val(x)); print_function_from_pc(to, to_arg, cp_val(x)); erts_print(to, to_arg, ")\n"); yreg = 0; } else if is_catch(x) { erts_print(to, to_arg, "SCatch 0x%X (", catch_pc(x)); print_function_from_pc(to, to_arg, catch_pc(x)); erts_print(to, to_arg, ")\n"); } else { dump_element(to, to_arg, x); erts_putc(to, to_arg, '\n'); } return yreg; } static void print_function_from_pc(int to, void *to_arg, BeamInstr* x) { BeamInstr* addr = find_function_from_pc(x); if (addr == NULL) { if (x == beam_exit) { erts_print(to, to_arg, "<terminate process>"); } else if (x == beam_continue_exit) { erts_print(to, to_arg, "<continue terminate process>"); } else if (x == beam_apply+1) { erts_print(to, to_arg, "<terminate process normally>"); } else { erts_print(to, to_arg, "unknown function"); } } else { erts_print(to, to_arg, "%T:%T/%bpu + %bpu", addr[0], addr[1], addr[2], ((x-addr)-2) * sizeof(Eterm)); } } static void heap_dump(int to, void *to_arg, Eterm x) { DeclareTmpHeapNoproc(last,1); Eterm* next = last; Eterm* ptr; if (is_immed(x) || is_CP(x)) { return; } UseTmpHeapNoproc(1); *last = OUR_NIL; while (x != OUR_NIL) { if (is_CP(x)) { next = (Eterm *) x; } else if (is_list(x)) { ptr = list_val(x); if (ptr[0] != OUR_NIL) { erts_print(to, to_arg, PTR_FMT ":l", ptr); dump_element(to, to_arg, ptr[0]); erts_putc(to, to_arg, '|'); dump_element(to, to_arg, ptr[1]); erts_putc(to, to_arg, '\n'); if (is_immed(ptr[1])) { ptr[1] = make_small(0); } x = ptr[0]; ptr[0] = (Eterm) next; next = ptr + 1; continue; } } else if (is_boxed(x)) { Eterm hdr; ptr = boxed_val(x); hdr = *ptr; if (hdr != OUR_NIL) { /* If not visited */ erts_print(to, to_arg, PTR_FMT ":", ptr); if (is_arity_value(hdr)) { Uint i; Uint arity = arityval(hdr); erts_print(to, to_arg, "t" ETERM_FMT ":", arity); for (i = 1; i <= arity; i++) { dump_element(to, to_arg, ptr[i]); if (is_immed(ptr[i])) { ptr[i] = make_small(0); } if (i < arity) { erts_putc(to, to_arg, ','); } } erts_putc(to, to_arg, '\n'); if (arity == 0) { ptr[0] = OUR_NIL; } else { x = ptr[arity]; ptr[0] = (Eterm) next; next = ptr + arity - 1; continue; } } else if (hdr == HEADER_FLONUM) { FloatDef f; char sbuf[31]; int i; GET_DOUBLE_DATA((ptr+1), f); i = sys_double_to_chars(f.fd, (char*) sbuf, sizeof(sbuf)); sys_memset(sbuf+i, 0, 31-i); erts_print(to, to_arg, "F%X:%s\n", i, sbuf); *ptr = OUR_NIL; } else if (_is_bignum_header(hdr)) { erts_print(to, to_arg, "B%T\n", x); *ptr = OUR_NIL; } else if (is_binary_header(hdr)) { Uint tag = thing_subtag(hdr); Uint size = binary_size(x); Uint i; if (tag == HEAP_BINARY_SUBTAG) { byte* p; erts_print(to, to_arg, "Yh%X:", size); p = binary_bytes(x); for (i = 0; i < size; i++) { erts_print(to, to_arg, "%02X", p[i]); } } else if (tag == REFC_BINARY_SUBTAG) { ProcBin* pb = (ProcBin *) binary_val(x); Binary* val = pb->val; if (erts_smp_atomic_xchg_nob(&val->refc, 0) != 0) { val->flags = (UWord) all_binaries; all_binaries = val; } erts_print(to, to_arg, "Yc" PTR_FMT ":" PTR_FMT ":" PTR_FMT, val, pb->bytes - (byte *)val->orig_bytes, size); } else if (tag == SUB_BINARY_SUBTAG) { ErlSubBin* Sb = (ErlSubBin *) binary_val(x); Eterm* real_bin; void* val; /* * Must use boxed_val() here, because the original * binary may have been visited and have had its * header word changed to OUR_NIL (in which case * binary_val() will cause an assertion failure in * the DEBUG emulator). */ real_bin = boxed_val(Sb->orig); if (thing_subtag(*real_bin) == REFC_BINARY_SUBTAG) { /* * Unvisited REFC_BINARY: Point directly to * the binary. */ ProcBin* pb = (ProcBin *) real_bin; val = pb->val; } else { /* * Heap binary or visited REFC binary: Point * to heap binary or ProcBin on the heap. */ val = real_bin; } erts_print(to, to_arg, "Ys" PTR_FMT ":" PTR_FMT ":" PTR_FMT, val, Sb->offs, size); } erts_putc(to, to_arg, '\n'); *ptr = OUR_NIL; } else if (is_external_pid_header(hdr)) { erts_print(to, to_arg, "P%T\n", x); *ptr = OUR_NIL; } else if (is_external_port_header(hdr)) { erts_print(to, to_arg, "p<%beu.%beu>\n", port_channel_no(x), port_number(x)); *ptr = OUR_NIL; } else { /* * All other we dump in the external term format. */ dump_externally(to, to_arg, x); erts_putc(to, to_arg, '\n'); *ptr = OUR_NIL; } } } x = *next; *next = OUR_NIL; next--; } UnUseTmpHeapNoproc(1); } static void dump_binaries(int to, void *to_arg, Binary* current) { while (current) { long i; long size = current->orig_size; byte* bytes = (byte*) current->orig_bytes; erts_print(to, to_arg, "=binary:" PTR_FMT "\n", current); erts_print(to, to_arg, "%X:", size); for (i = 0; i < size; i++) { erts_print(to, to_arg, "%02X", bytes[i]); } erts_putc(to, to_arg, '\n'); current = (Binary *) current->flags; } } static void dump_externally(int to, void *to_arg, Eterm term) { byte sbuf[1024]; /* encode and hope for the best ... */ byte* s; byte* p; if (is_fun(term)) { /* * The fun's environment used to cause trouble. There were * two kind of problems: * * 1. A term used in the environment could already have been * dumped and thus destroyed (since dumping is destructive). * * 2. A term in the environment could be too big, so that * the buffer for external format overflowed (allocating * memory is not really a solution, as it could be exhausted). * * Simple solution: Set all variables in the environment to NIL. * The crashdump_viewer does not allow inspection of them anyway. */ ErlFunThing* funp = (ErlFunThing *) fun_val(term); Uint num_free = funp->num_free; Uint i; for (i = 0; i < num_free; i++) { funp->env[i] = NIL; } } s = p = sbuf; erts_encode_ext(term, &p); erts_print(to, to_arg, "E%X:", p-s); while (s < p) { erts_print(to, to_arg, "%02X", *s++); } } void erts_dump_process_state(int to, void *to_arg, erts_aint32_t psflg) { if (psflg & ERTS_PSFLG_FREE) erts_print(to, to_arg, "Non Existing\n"); /* Should never happen */ else if (psflg & ERTS_PSFLG_EXITING) erts_print(to, to_arg, "Exiting\n"); else if (psflg & ERTS_PSFLG_GC) { erts_print(to, to_arg, "Garbing\n"); } else if (psflg & ERTS_PSFLG_SUSPENDED) erts_print(to, to_arg, "Suspended\n"); else if (psflg & ERTS_PSFLG_RUNNING) { erts_print(to, to_arg, "Running\n"); } else if (psflg & ERTS_PSFLG_ACTIVE) erts_print(to, to_arg, "Scheduled\n"); else erts_print(to, to_arg, "Waiting\n"); } void erts_dump_extended_process_state(int to, void *to_arg, erts_aint32_t psflg) { int i; switch (ERTS_PSFLGS_GET_ACT_PRIO(psflg)) { case PRIORITY_MAX: erts_print(to, to_arg, "ACT_PRIO_MAX | "); break; case PRIORITY_HIGH: erts_print(to, to_arg, "ACT_PRIO_HIGH | "); break; case PRIORITY_NORMAL: erts_print(to, to_arg, "ACT_PRIO_NORMAL | "); break; case PRIORITY_LOW: erts_print(to, to_arg, "ACT_PRIO_LOW | "); break; } switch (ERTS_PSFLGS_GET_USR_PRIO(psflg)) { case PRIORITY_MAX: erts_print(to, to_arg, "USR_PRIO_MAX | "); break; case PRIORITY_HIGH: erts_print(to, to_arg, "USR_PRIO_HIGH | "); break; case PRIORITY_NORMAL: erts_print(to, to_arg, "USR_PRIO_NORMAL | "); break; case PRIORITY_LOW: erts_print(to, to_arg, "USR_PRIO_LOW | "); break; } switch (ERTS_PSFLGS_GET_PRQ_PRIO(psflg)) { case PRIORITY_MAX: erts_print(to, to_arg, "PRQ_PRIO_MAX"); break; case PRIORITY_HIGH: erts_print(to, to_arg, "PRQ_PRIO_HIGH"); break; case PRIORITY_NORMAL: erts_print(to, to_arg, "PRQ_PRIO_NORMAL"); break; case PRIORITY_LOW: erts_print(to, to_arg, "PRQ_PRIO_LOW"); break; } psflg &= ~(ERTS_PSFLGS_ACT_PRIO_MASK | ERTS_PSFLGS_USR_PRIO_MASK | ERTS_PSFLGS_PRQ_PRIO_MASK); if (psflg) erts_print(to, to_arg, " | "); for (i = 0; i <= ERTS_PSFLG_MAX && psflg; i++) { erts_aint32_t chk = (1 << i); if (psflg & chk) { switch (chk) { case ERTS_PSFLG_IN_PRQ_MAX: erts_print(to, to_arg, "IN_PRQ_MAX"); break; case ERTS_PSFLG_IN_PRQ_HIGH: erts_print(to, to_arg, "IN_PRQ_HIGH"); break; case ERTS_PSFLG_IN_PRQ_NORMAL: erts_print(to, to_arg, "IN_PRQ_NORMAL"); break; case ERTS_PSFLG_IN_PRQ_LOW: erts_print(to, to_arg, "IN_PRQ_LOW"); break; case ERTS_PSFLG_FREE: erts_print(to, to_arg, "FREE"); break; case ERTS_PSFLG_EXITING: erts_print(to, to_arg, "EXITING"); break; case ERTS_PSFLG_PENDING_EXIT: erts_print(to, to_arg, "PENDING_EXIT"); break; case ERTS_PSFLG_ACTIVE: erts_print(to, to_arg, "ACTIVE"); break; case ERTS_PSFLG_IN_RUNQ: erts_print(to, to_arg, "IN_RUNQ"); break; case ERTS_PSFLG_RUNNING: erts_print(to, to_arg, "RUNNING"); break; case ERTS_PSFLG_SUSPENDED: erts_print(to, to_arg, "SUSPENDED"); break; case ERTS_PSFLG_GC: erts_print(to, to_arg, "GC"); break; case ERTS_PSFLG_BOUND: erts_print(to, to_arg, "BOUND"); break; case ERTS_PSFLG_TRAP_EXIT: erts_print(to, to_arg, "TRAP_EXIT"); break; case ERTS_PSFLG_ACTIVE_SYS: erts_print(to, to_arg, "ACTIVE_SYS"); break; case ERTS_PSFLG_RUNNING_SYS: erts_print(to, to_arg, "RUNNING_SYS"); break; case ERTS_PSFLG_PROXY: erts_print(to, to_arg, "PROXY"); break; case ERTS_PSFLG_DELAYED_SYS: erts_print(to, to_arg, "DELAYED_SYS"); break; case ERTS_PSFLG_OFF_HEAP_MSGQ: erts_print(to, to_arg, "OFF_HEAP_MSGQ"); break; case ERTS_PSFLG_ON_HEAP_MSGQ: erts_print(to, to_arg, "ON_HEAP_MSGQ"); break; case ERTS_PSFLG_DIRTY_CPU_PROC: erts_print(to, to_arg, "DIRTY_CPU_PROC"); break; case ERTS_PSFLG_DIRTY_IO_PROC: erts_print(to, to_arg, "DIRTY_IO_PROC"); break; case ERTS_PSFLG_DIRTY_ACTIVE_SYS: erts_print(to, to_arg, "DIRTY_ACTIVE_SYS"); break; default: erts_print(to, to_arg, "UNKNOWN(%d)", chk); break; } if (psflg > chk) erts_print(to, to_arg, " | "); psflg -= chk; } } erts_print(to, to_arg, "\n"); }