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-rw-r--r--erts/emulator/beam/beam_debug.c154
1 files changed, 97 insertions, 57 deletions
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index 4242a4161e..23b267d5cd 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 1998-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 1998-2010. All Rights Reserved.
+ *
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
- *
+ *
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
- *
+ *
* %CopyrightEnd%
*/
@@ -43,12 +43,13 @@
#else
# define HEXF "%08bpX"
#endif
+#define TermWords(t) (((t) / (sizeof(BeamInstr)/sizeof(Eterm))) + !!((t) % (sizeof(BeamInstr)/sizeof(Eterm))))
void dbg_bt(Process* p, Eterm* sp);
-void dbg_where(Eterm* addr, Eterm x0, Eterm* reg);
+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, 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)
{
@@ -124,6 +125,38 @@ erts_debug_breakpoint_2(Process* p, Eterm MFA, Eterm bool)
BIF_ERROR(p, BADARG);
}
+#if 0 /* XXX:PaN - not used */
+void debug_dump_code(BeamInstr *I, int num)
+{
+ BeamInstr *code_ptr = I;
+ BeamInstr *end = code_ptr + num;
+ erts_dsprintf_buf_t *dsbufp;
+ BeamInstr instr;
+ int i;
+
+ dsbufp = erts_create_tmp_dsbuf(0);
+ while (code_ptr < end) {
+ erts_print(ERTS_PRINT_DSBUF, (void *) dsbufp, HEXF ": ", code_ptr);
+ instr = (BeamInstr) code_ptr[0];
+ for (i = 0; i < NUM_SPECIFIC_OPS; i++) {
+ if (instr == (BeamInstr) BeamOp(i) && opc[i].name[0] != '\0') {
+ code_ptr += print_op(ERTS_PRINT_DSBUF, (void *) dsbufp,
+ i, opc[i].sz-1, code_ptr+1) + 1;
+ break;
+ }
+ }
+ if (i >= NUM_SPECIFIC_OPS) {
+ erts_print(ERTS_PRINT_DSBUF, (void *) dsbufp,
+ "unknown " HEXF "\n", instr);
+ code_ptr++;
+ }
+ }
+ dsbufp->str[dsbufp->str_len] = 0;
+ erts_fprintf(stderr,"%s", dsbufp->str);
+ erts_destroy_tmp_dsbuf(dsbufp);
+}
+#endif
+
Eterm
erts_debug_disassemble_1(Process* p, Eterm addr)
{
@@ -132,16 +165,16 @@ erts_debug_disassemble_1(Process* p, Eterm addr)
Eterm* tp;
Eterm bin;
Eterm mfa;
- Eterm* funcinfo = NULL; /* Initialized to eliminate warning. */
- Uint* code_base;
- Uint* code_ptr = NULL; /* Initialized to eliminate warning. */
- Uint instr;
- Uint uaddr;
+ BeamInstr* funcinfo = NULL; /* Initialized to eliminate warning. */
+ BeamInstr* code_base;
+ BeamInstr* code_ptr = NULL; /* Initialized to eliminate warning. */
+ BeamInstr instr;
+ BeamInstr uaddr;
Uint hsz;
int i;
- if (term_to_Uint(addr, &uaddr)) {
- code_ptr = (Uint *) uaddr;
+ if (term_to_UWord(addr, &uaddr)) {
+ code_ptr = (BeamInstr *) uaddr;
if ((funcinfo = find_function_from_pc(code_ptr)) == NULL) {
BIF_RET(am_false);
}
@@ -180,14 +213,14 @@ erts_debug_disassemble_1(Process* p, Eterm addr)
* But this code_ptr will point to the start of the Export,
* not the function's func_info instruction. BOOM !?
*/
- code_ptr = ((Eterm *) ep->address) - 5;
+ code_ptr = ((BeamInstr *) ep->address) - 5;
funcinfo = code_ptr+2;
} else if (modp == NULL || (code_base = modp->code) == NULL) {
BIF_RET(am_undef);
} else {
n = code_base[MI_NUM_FUNCTIONS];
for (i = 0; i < n; i++) {
- code_ptr = (Uint *) code_base[MI_FUNCTIONS+i];
+ code_ptr = (BeamInstr *) code_base[MI_FUNCTIONS+i];
if (code_ptr[3] == name && code_ptr[4] == arity) {
funcinfo = code_ptr+2;
break;
@@ -203,9 +236,9 @@ erts_debug_disassemble_1(Process* p, Eterm addr)
dsbufp = erts_create_tmp_dsbuf(0);
erts_print(ERTS_PRINT_DSBUF, (void *) dsbufp, HEXF ": ", code_ptr);
- instr = (Uint) code_ptr[0];
+ instr = (BeamInstr) code_ptr[0];
for (i = 0; i < NUM_SPECIFIC_OPS; i++) {
- if (instr == (Uint) BeamOp(i) && opc[i].name[0] != '\0') {
+ if (instr == (BeamInstr) BeamOp(i) && opc[i].name[0] != '\0') {
code_ptr += print_op(ERTS_PRINT_DSBUF, (void *) dsbufp,
i, opc[i].sz-1, code_ptr+1) + 1;
break;
@@ -219,12 +252,12 @@ erts_debug_disassemble_1(Process* p, Eterm addr)
bin = new_binary(p, (byte *) dsbufp->str, (int) dsbufp->str_len);
erts_destroy_tmp_dsbuf(dsbufp);
hsz = 4+4;
- (void) erts_bld_uint(NULL, &hsz, (Uint) code_ptr);
+ (void) erts_bld_uword(NULL, &hsz, (BeamInstr) code_ptr);
hp = HAlloc(p, hsz);
- addr = erts_bld_uint(&hp, NULL, (Uint) code_ptr);
+ addr = erts_bld_uword(&hp, NULL, (BeamInstr) code_ptr);
ASSERT(is_atom(funcinfo[0]));
ASSERT(is_atom(funcinfo[1]));
- mfa = TUPLE3(hp, funcinfo[0], funcinfo[1], make_small(funcinfo[2]));
+ mfa = TUPLE3(hp, (Eterm) funcinfo[0], (Eterm) funcinfo[1], make_small((Eterm) funcinfo[2]));
hp += 4;
return TUPLE3(hp, addr, bin, mfa);
}
@@ -236,20 +269,20 @@ dbg_bt(Process* p, Eterm* sp)
while (sp < stack) {
if (is_CP(*sp)) {
- Eterm* addr = find_function_from_pc(cp_val(*sp));
+ BeamInstr* addr = find_function_from_pc(cp_val(*sp));
if (addr)
erts_fprintf(stderr,
HEXF ": %T:%T/%bpu\n",
- addr, addr[0], addr[1], addr[2]);
+ addr, (Eterm) addr[0], (Eterm) addr[1], (Uint) addr[2]);
}
sp++;
}
}
void
-dbg_where(Eterm* addr, Eterm x0, Eterm* reg)
+dbg_where(BeamInstr* addr, Eterm x0, Eterm* reg)
{
- Eterm* f = find_function_from_pc(addr);
+ BeamInstr* f = find_function_from_pc(addr);
if (f == NULL) {
erts_fprintf(stderr, "???\n");
@@ -259,7 +292,7 @@ dbg_where(Eterm* addr, Eterm x0, Eterm* reg)
addr = f;
arity = addr[2];
- erts_fprintf(stderr, HEXF ": %T:%T(", addr, addr[0], addr[1]);
+ erts_fprintf(stderr, HEXF ": %T:%T(", addr, (Eterm) addr[0], (Eterm) addr[1]);
for (i = 0; i < arity; i++)
erts_fprintf(stderr, i ? ", %T" : "%T", i ? reg[i] : x0);
erts_fprintf(stderr, ")\n");
@@ -267,18 +300,18 @@ dbg_where(Eterm* addr, Eterm x0, Eterm* reg)
}
static int
-print_op(int to, void *to_arg, int op, int size, Eterm* addr)
+print_op(int to, void *to_arg, int op, int size, BeamInstr* addr)
{
int i;
- Uint tag;
+ BeamInstr tag;
char* sign;
char* start_prog; /* Start of program for packer. */
char* prog; /* Current position in packer program. */
- Uint stack[8]; /* Stack for packer. */
- Uint* sp = stack; /* Points to next free position. */
- Uint packed = 0; /* Accumulator for packed operations. */
- Uint args[8]; /* Arguments for this instruction. */
- Uint* ap; /* Pointer to arguments. */
+ BeamInstr stack[8]; /* Stack for packer. */
+ BeamInstr* sp = stack; /* Points to next free position. */
+ BeamInstr packed = 0; /* Accumulator for packed operations. */
+ BeamInstr args[8]; /* Arguments for this instruction. */
+ BeamInstr* ap; /* Pointer to arguments. */
start_prog = opc[op].pack;
@@ -288,7 +321,7 @@ print_op(int to, void *to_arg, int op, int size, Eterm* addr)
* Avoid copying because instructions containing bignum operands
* are bigger than actually declared.
*/
- ap = (Uint *) addr;
+ ap = (BeamInstr *) addr;
} else {
/*
* Copy all arguments to a local buffer for the unpacking.
@@ -324,8 +357,8 @@ print_op(int to, void *to_arg, int op, int size, Eterm* addr)
packed >>= BEAM_TIGHT_SHIFT;
break;
case '6': /* Shift 16 steps */
- *ap++ = packed & 0xffff;
- packed >>= 16;
+ *ap++ = packed & BEAM_LOOSE_MASK;
+ packed >>= BEAM_LOOSE_SHIFT;
break;
case 'p':
*sp++ = *--ap;
@@ -390,11 +423,11 @@ print_op(int to, void *to_arg, int op, int size, Eterm* addr)
case 'i': /* Tagged integer */
case 'c': /* Tagged constant */
case 'q': /* Tagged literal */
- erts_print(to, to_arg, "%T", *ap);
+ erts_print(to, to_arg, "%T", (Eterm) *ap);
ap++;
break;
case 'A':
- erts_print(to, to_arg, "%d", arityval(ap[0]));
+ erts_print(to, to_arg, "%d", arityval( (Eterm) ap[0]));
ap++;
break;
case 'd': /* Destination (x(0), x(N), y(N)) */
@@ -421,30 +454,36 @@ print_op(int to, void *to_arg, int op, int size, Eterm* addr)
ap++;
break;
case 'f': /* Destination label */
- erts_print(to, to_arg, "f(%X)", *ap);
- ap++;
+ {
+ BeamInstr* f = find_function_from_pc((BeamInstr *)*ap);
+ if (f+3 != (BeamInstr *) *ap) {
+ erts_print(to, to_arg, "f(" HEXF ")", *ap);
+ } else {
+ erts_print(to, to_arg, "%T:%T/%bpu", (Eterm) f[0], (Eterm) f[1], (Eterm) f[2]);
+ }
+ ap++;
+ }
break;
case 'p': /* Pointer (to label) */
{
- Eterm* f = find_function_from_pc((Eterm *)*ap);
-
- if (f+3 != (Eterm *) *ap) {
- erts_print(to, to_arg, "p(%X)", *ap);
+ BeamInstr* f = find_function_from_pc((BeamInstr *)*ap);
+ if (f+3 != (BeamInstr *) *ap) {
+ erts_print(to, to_arg, "p(" HEXF ")", *ap);
} else {
- erts_print(to, to_arg, "%T:%T/%bpu", f[0], f[1], f[2]);
+ erts_print(to, to_arg, "%T:%T/%bpu", (Eterm) f[0], (Eterm) f[1], (Eterm) f[2]);
}
ap++;
}
break;
case 'j': /* Pointer (to label) */
- erts_print(to, to_arg, "j(%X)", *ap);
+ erts_print(to, to_arg, "j(" HEXF ")", *ap);
ap++;
break;
case 'e': /* Export entry */
{
Export* ex = (Export *) *ap;
erts_print(to, to_arg,
- "%T:%T/%bpu", ex->code[0], ex->code[1], ex->code[2]);
+ "%T:%T/%bpu", (Eterm) ex->code[0], (Eterm) ex->code[1], (Uint) ex->code[2]);
ap++;
}
break;
@@ -467,7 +506,7 @@ print_op(int to, void *to_arg, int op, int size, Eterm* addr)
ap++;
break;
case 'P': /* Byte offset into tuple (see beam_load.c) */
- erts_print(to, to_arg, "%d", (*ap / sizeof(Eterm*)) - 1);
+ erts_print(to, to_arg, "%d", (*ap / sizeof(Eterm)) - 1);
ap++;
break;
case 'l': /* fr(N) */
@@ -494,7 +533,7 @@ print_op(int to, void *to_arg, int op, int size, Eterm* addr)
int n = ap[-1];
while (n > 0) {
- erts_print(to, to_arg, "%T f(%X) ", ap[0], ap[1]);
+ erts_print(to, to_arg, "%T f(" HEXF ") ", (Eterm) ap[0], ap[1]);
ap += 2;
size += 2;
n--;
@@ -505,7 +544,7 @@ print_op(int to, void *to_arg, int op, int size, Eterm* addr)
{
int n;
for (n = ap[-2]; n > 0; n--) {
- erts_print(to, to_arg, "f(%X) ", ap[0]);
+ erts_print(to, to_arg, "f(" HEXF ") ", ap[0]);
ap++;
size++;
}
@@ -513,11 +552,12 @@ print_op(int to, void *to_arg, int op, int size, Eterm* addr)
break;
case op_i_select_big_sf:
while (ap[0]) {
- int arity = thing_arityval(ap[0]);
- print_big(to, to_arg, ap);
- size += arity+1;
- ap += arity+1;
- erts_print(to, to_arg, " f(%X) ", 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++;
}
@@ -541,8 +581,8 @@ print_big(int to, void *to_arg, Eterm* addr)
erts_print(to, to_arg, "-#integer(%d) = {", i);
else
erts_print(to, to_arg, "#integer(%d) = {", i);
- erts_print(to, to_arg, "%d", BIG_DIGIT(addr, 0));
+ erts_print(to, to_arg, "0x%x", BIG_DIGIT(addr, 0));
for (k = 1; k < i; k++)
- erts_print(to, to_arg, ",%d", BIG_DIGIT(addr, k));
+ erts_print(to, to_arg, ",0x%x", BIG_DIGIT(addr, k));
erts_print(to, to_arg, "}");
}
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