Many more changes

This commit is contained in:
ceriel
1990-11-06 12:23:41 +00:00
parent b28f5a1824
commit 87a8061e1c
14 changed files with 570 additions and 240 deletions

View File

@@ -25,6 +25,12 @@ extern int interrupted;
p_tree print_command;
/*ARGSUSED*/
do_noop(p)
p_tree p;
{
}
/* ------------------------------------------------------------- */
/* implementation of the help command */
@@ -49,9 +55,27 @@ do_help(p)
fputs(" <wsize> is the last <cnt> given, or 10.\n", db_out);
return;
case XFILE:
fputs("file [ <name> ]\n", db_out);
fputs("file [ <name> | ? ]\n", db_out);
fputs(" Print the name of the current source file, or change the\n", db_out);
fputs(" current source file to <name>.\n", db_out);
fputs(" current source file to <name>, or print the files that\n", db_out);
fputs(" the debugger knows about.\n", db_out);
return;
case SOURCE:
fputs("source <filename>\n", db_out);
fputs(" Read commands from the file <filename>\n", db_out);
return;
case FRAME:
fputs("frame [ [ + | - ] <num> ]\n", db_out);
fputs(" Sets the 'current' frame to frame <num>. The currently active\n", db_out);
fputs(" procedure has frame 0. If <num> is not given, print the 'current' frame.\n", db_out);
fputs(" If <num> is given with a + or -, go up or down <num> frames relative\n", db_out);
fputs(" to the current one.\n", db_out);
return;
case LOG:
fputs("log [ <name> | off ]\n", db_out);
fputs(" Creates a logfile <name> of the commands given.\n", db_out);
fputs(" When no argument is given, the current logfile is printed.\n", db_out);
fputs(" If the argument is 'off', logging is turned off.\n", db_out);
return;
case RUN:
fputs("run [ <args> ] [ < <infile> ] [ > <outfile> ]\n", db_out);
@@ -59,8 +83,9 @@ do_help(p)
fputs(" possible redirection of standard input and/or standard output.\n", db_out);
return;
case RERUN:
fputs("rerun\n", db_out);
fputs(" repeats the last run command.\n", db_out);
fputs("rerun [ ? ]\n", db_out);
fputs(" If the ? is given, prints the last run command;\n", db_out);
fputs(" otherwise repeats the last run command.\n", db_out);
return;
case STOP:
fputs("stop [ <pos> ] [ if <cond> ]\n", db_out);
@@ -112,9 +137,9 @@ do_help(p)
fputs(" Assign the value of <exp> to <desig>.\n", db_out);
return;
case PRINT:
fputs("print <exp> [ , <exp> ] ...\n", db_out);
fputs("p <exp> [ , <exp> ] ...\n", db_out);
fputs(" Print the value of each <exp>.\n", db_out);
fputs("print [ <exp> [ , <exp> ] ...]\n", db_out);
fputs("p [ <exp> [ , <exp> ] ...]\n", db_out);
fputs(" Print the value of each <exp>, or repeat the last print command\n", db_out);
return;
case DISPLAY:
fputs("display <exp> [ , <exp> ] ...\n", db_out);
@@ -160,22 +185,32 @@ do_help(p)
fputs(" If no <num> is given, enable the current stopping point (not effective).\n", db_out);
return;
}
else if (p && p->t_str) {
if (! strcmp(p->t_str, "!")) {
fputs("! <shell command>\n", db_out);
fputs(" Execute the given shell command.\n", db_out);
return;
}
}
fputs("cont [ <cnt> ] [ at <line> ]\n", db_out);
fputs("delete [ <num> [ , <num> ] ... ]\n", db_out);
fputs("disable [ <num> [ , <num> ] ... ]\n", db_out);
fputs("display <exp> [ , <exp> ] ...\n", db_out);
fputs("dump\n", db_out);
fputs("enable [ <num> [ , <num> ] ... ]\n", db_out);
fputs("file [ <name> ]\n", db_out);
fputs("file [ <name> | ? ]\n", db_out);
fputs("find <name>\n", db_out);
fputs("frame [ [ + | - ] <num> ]\n", db_out);
fputs("help [ <commandname> ]\n", db_out);
fputs("list [ <start> | <func> ] [ , <cnt> | - [ <end> ] ]\n", db_out);
fputs("log [ <name> | off ]\n", db_out);
fputs("next [ <cnt> ]\n", db_out);
fputs("print <exp> [ , <exp> ] ...\n", db_out);
fputs("rerun\n", db_out);
fputs("restore <num>\n", db_out);
fputs("print [ <exp> [ , <exp> ] ... ]\n", db_out);
fputs("rerun [ ? ]\n", db_out);
fputs("restore [ <num> ]\n", db_out);
fputs("run [ <args> ] [ < <infile> ] [ > <outfile> ]\n", db_out);
fputs("set <desig> to <exp>\n", db_out);
fputs("source <filename>\n", db_out);
fputs("status\n", db_out);
fputs("step [ <cnt> ]\n", db_out);
fputs("stop [ <pos> ] [ if <cond> ]\n", db_out);
@@ -183,6 +218,7 @@ do_help(p)
fputs("when [ <pos> ] [ if <cond> ] { <command> [ ; <command> ] ... } \n", db_out);
fputs("where [ <cnt> ]\n", db_out);
fputs("which <name>\n", db_out);
fputs("! <shell command>\n", db_out);
}
/* ------------------------------------------------------------- */
@@ -608,6 +644,30 @@ do_regs(p)
/* implementation of the where command */
static t_addr where_PC;
static int
where_entry(num)
int num;
{
t_addr *buf;
t_addr AB;
p_scope sc;
if (! (buf = get_EM_regs(num))) return 0;
AB = buf[1];
where_PC = buf[2];
if (! AB) return 0;
sc = base_scope(get_scope_from_addr(where_PC));
if (! sc || sc->sc_start > where_PC) return 0;
fprintf(db_out, "%s(", sc->sc_definedby->sy_idf->id_text);
print_params(sc->sc_definedby->sy_type, AB, has_static_link(sc));
fputs(") ", db_out);
print_position(where_PC, 0);
fputs("\n", db_out);
return 1;
}
/*ARGSUSED*/
do_where(p)
p_tree p;
@@ -636,20 +696,8 @@ do_where(p)
}
else if (p) maxcnt = p->t_ival;
for (cnt = maxcnt; cnt != 0; cnt--) {
t_addr AB;
if (interrupted) return;
if (! (buf = get_EM_regs(i++))) break;
AB = buf[1];
PC = buf[2];
if (! AB) break;
sc = base_scope(get_scope_from_addr(PC));
if (! sc || sc->sc_start > PC) break;
fprintf(db_out, "%s(", sc->sc_definedby->sy_idf->id_text);
print_params(sc->sc_definedby->sy_type, AB, has_static_link(sc));
fputs(") ", db_out);
print_position(PC, 0);
fputs("\n", db_out);
if (! where_entry(i++)) return;
}
}
@@ -735,7 +783,7 @@ do_print(p)
break;
default:
if (interrupted || ! eval_expr(p, &buf, &size, &tp)) return;
print_node(p, 0);
print_node(db_out, p, 0);
fputs(" = ", db_out);
if (p->t_oper == OP_FORMAT) {
format = p->t_args[1]->t_str;
@@ -774,3 +822,155 @@ do_set(p)
free(buf);
}
/* ------------------------------------------------------------- */
/* implementation of the source command */
extern FILE *db_in;
do_source(p)
p_tree p;
{
FILE *old_db_in = db_in;
p = p->t_args[0];
if ((db_in = fopen(p->t_str, "r")) == NULL) {
db_in = old_db_in;
error("could not open %s", p->t_str);
return;
}
Commands();
fclose(db_in);
db_in = old_db_in;
}
/* ------------------------------------------------------------- */
do_prcomm(p)
p_tree p;
{
print_node(db_out, p->t_args[0], 1);
}
/* ------------------------------------------------------------- */
/* stack frame commands: frame, down, up */
extern int stack_offset;
static
frame_pos(diff)
int diff;
{
if (stack_offset+diff < 0) diff = - stack_offset;
if (! where_entry(stack_offset+diff)) {
error("no frame %d", stack_offset+diff);
return;
}
stack_offset += diff;
list_position(get_position_from_addr(where_PC));
CurrentScope = get_scope_from_addr(where_PC);
}
do_frame(p)
p_tree p;
{
if (p->t_args[0]) {
frame_pos((int) p->t_args[0]->t_ival - stack_offset);
}
else frame_pos(0);
}
do_up(p)
p_tree p;
{
if (p->t_args[0]) {
frame_pos((int) p->t_args[0]->t_ival);
}
else frame_pos(1);
}
do_down(p)
p_tree p;
{
if (p->t_args[0]) {
frame_pos(-(int) p->t_args[0]->t_ival);
}
else frame_pos(-1);
}
/* ------------------------------------------------------------- */
/* log command */
static char *logfile;
static FILE *logfd;
do_log(p)
p_tree p;
{
p = p->t_args[0];
if (p) {
if (logfd && ! strcmp(p->t_str, "off")) {
fprintf(db_out, "stopped logging on %s\n", logfile);
fclose(logfd);
logfd = NULL;
return;
}
if (logfd) {
error("already logging on %s", logfile);
return;
}
logfile = p->t_str;
if ((logfd = fopen(logfile, "w")) == NULL) {
error("could not open %s", logfile);
return;
}
fprintf(db_out, "started logging on %s\n", logfile);
}
else if (logfd) {
fprintf(db_out, "the current logfile is %s\n", logfile);
}
else {
error("no current logfile");
}
}
extern int item_count;
extern int in_wheninvoked;
log(p)
p_tree p;
{
register p_tree p1;
if (logfd && ! in_wheninvoked) {
switch(p->t_oper) {
case OP_SOURCE:
case OP_LOG:
break;
case OP_DELETE:
case OP_ENABLE:
case OP_DISABLE:
/* Change absolute item numbers into relative ones
for safer replay
*/
p1 = p->t_args[0];
while (p1 && p1->t_oper == OP_LINK) {
register p_tree p2 = p1->t_args[0];
if (p2->t_ival > 0) {
p2->t_ival = item_count - p2->t_ival;
}
p1 = p1->t_args[1];
}
if (p1 && p1->t_ival > 0) {
p1->t_ival = item_count - p1->t_ival;
}
/* Fall through */
default:
print_node(logfd, p, 1);
fflush(logfd);
break;
}
}
}