diff options
Diffstat (limited to 'erts/emulator/beam/beam_debug.c')
| -rw-r--r-- | erts/emulator/beam/beam_debug.c | 119 |
1 files changed, 86 insertions, 33 deletions
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c index b0bf14b94f..2855241b91 100644 --- a/erts/emulator/beam/beam_debug.c +++ b/erts/emulator/beam/beam_debug.c @@ -48,7 +48,6 @@ void dbg_bt(Process* p, Eterm* sp); void dbg_where(BeamInstr* addr, Eterm x0, Eterm* reg); -static void print_big(int to, void *to_arg, Eterm* addr); static int print_op(int to, void *to_arg, int op, int size, BeamInstr* addr); Eterm erts_debug_same_2(Process* p, Eterm term1, Eterm term2) @@ -157,6 +156,25 @@ void debug_dump_code(BeamInstr *I, int num) } #endif +BIF_RETTYPE +erts_debug_instructions_0(BIF_ALIST_0) +{ + int i = 0; + Uint needed = num_instructions * 2; + Eterm* hp; + Eterm res = NIL; + + for (i = 0; i < num_instructions; i++) { + needed += 2*strlen(opc[i].name); + } + hp = HAlloc(BIF_P, needed); + for (i = num_instructions-1; i >= 0; i--) { + Eterm s = erts_bld_string_n(&hp, 0, opc[i].name, strlen(opc[i].name)); + res = erts_bld_cons(&hp, 0, s, res); + } + return res; +} + Eterm erts_debug_disassemble_1(Process* p, Eterm addr) { @@ -312,6 +330,7 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr) BeamInstr packed = 0; /* Accumulator for packed operations. */ BeamInstr args[8]; /* Arguments for this instruction. */ BeamInstr* ap; /* Pointer to arguments. */ + BeamInstr* unpacked; /* Unpacked arguments */ start_prog = opc[op].pack; @@ -360,6 +379,12 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr) *ap++ = packed & BEAM_LOOSE_MASK; packed >>= BEAM_LOOSE_SHIFT; break; +#ifdef ARCH_64 + case 'w': /* Shift 32 steps */ + *ap++ = packed & BEAM_WIDE_MASK; + packed >>= BEAM_WIDE_SHIFT; + break; +#endif case 'p': *sp++ = *--ap; break; @@ -386,7 +411,7 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr) break; case 'x': /* x(N) */ if (reg_index(ap[0]) == 0) { - erts_print(to, to_arg, "X[0]"); + erts_print(to, to_arg, "x[0]"); } else { erts_print(to, to_arg, "x(%d)", reg_index(ap[0])); } @@ -506,6 +531,7 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr) ap++; break; case 'P': /* Byte offset into tuple (see beam_load.c) */ + case 'Q': /* Like 'P', but packable */ erts_print(to, to_arg, "%d", (*ap / sizeof(Eterm)) - 1); ap++; break; @@ -526,9 +552,12 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr) * Print more information about certain instructions. */ + unpacked = ap; ap = addr + size; switch (op) { - case op_i_select_val_sfI: + case op_i_select_val_rfI: + case op_i_select_val_xfI: + case op_i_select_val_yfI: { int n = ap[-1]; @@ -540,7 +569,24 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr) } } break; - case op_i_jump_on_val_sfII: + case op_i_select_tuple_arity_rfI: + case op_i_select_tuple_arity_xfI: + case op_i_select_tuple_arity_yfI: + { + int n = ap[-1]; + + while (n > 0) { + Uint arity = arityval(ap[0]); + erts_print(to, to_arg, " {%d} f(" HEXF ")", arity, ap[1]); + ap += 2; + size += 2; + n--; + } + } + break; + case op_i_jump_on_val_rfII: + case op_i_jump_on_val_xfII: + case op_i_jump_on_val_yfII: { int n; for (n = ap[-2]; n > 0; n--) { @@ -550,39 +596,46 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr) } } break; - case op_i_select_big_sf: - while (ap[0]) { - Eterm *bigp = (Eterm *) ap; - int arity = thing_arityval(*bigp); - print_big(to, to_arg, bigp); - size += TermWords(arity+1); - ap += TermWords(arity+1); - erts_print(to, to_arg, " f(" HEXF ") ", ap[0]); - ap++; - size++; + case op_i_jump_on_val_zero_rfI: + case op_i_jump_on_val_zero_xfI: + case op_i_jump_on_val_zero_yfI: + { + int n; + for (n = ap[-1]; n > 0; n--) { + erts_print(to, to_arg, "f(" HEXF ") ", ap[0]); + ap++; + size++; + } + } + break; + case op_i_put_tuple_rI: + case op_i_put_tuple_xI: + case op_i_put_tuple_yI: + { + int n = unpacked[-1]; + + while (n > 0) { + if (!is_header(ap[0])) { + erts_print(to, to_arg, " %T", (Eterm) ap[0]); + } else { + switch ((ap[0] >> 2) & 0x03) { + case R_REG_DEF: + erts_print(to, to_arg, " x(0)"); + break; + case X_REG_DEF: + erts_print(to, to_arg, " x(%d)", ap[0] >> 4); + break; + case Y_REG_DEF: + erts_print(to, to_arg, " y(%d)", ap[0] >> 4); + break; + } + } + ap++, size++, n--; + } } - ap++; - size++; break; } erts_print(to, to_arg, "\n"); return size; } - -static void -print_big(int to, void *to_arg, Eterm* addr) -{ - int i; - int k; - - i = BIG_SIZE(addr); - if (BIG_SIGN(addr)) - erts_print(to, to_arg, "-#integer(%d) = {", i); - else - erts_print(to, to_arg, "#integer(%d) = {", i); - erts_print(to, to_arg, "0x%x", BIG_DIGIT(addr, 0)); - for (k = 1; k < i; k++) - erts_print(to, to_arg, ",0x%x", BIG_DIGIT(addr, k)); - erts_print(to, to_arg, "}"); -} |