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#include <stdio.h>
#include <stdarg.h>
#include "ltrace.h"
#include "options.h"
#include "output.h"
static pid_t current_pid = 0;
static int current_column = 0;
static void begin_of_line(enum tof type, struct process * proc)
{
current_column = 0;
if (!proc) {
return;
}
if (list_of_processes && list_of_processes->next) {
current_column += fprintf(output, "[pid %d] ", proc->pid);
}
if (opt_i) {
if (type==LT_TOF_FUNCTION) {
current_column += fprintf(output, "[%08x] ",
(unsigned)proc->return_addr);
} else {
current_column += fprintf(output, "[%08x] ",
(unsigned)proc->instruction_pointer);
}
}
}
static struct function * name2func(char * name)
{
struct function * tmp;
tmp = list_of_functions;
while(tmp) {
if (!strcmp(tmp->name, name)) {
return tmp;
}
tmp = tmp->next;
}
return NULL;
}
void output_line(struct process * proc, char *fmt, ...)
{
va_list args;
if (current_pid) {
fprintf(output, " <unfinished ...>\n");
}
begin_of_line(LT_TOF_NONE, proc);
va_start(args, fmt);
vfprintf(output, fmt, args);
fprintf(output, "\n");
va_end(args);
current_pid=0;
current_column=0;
}
static void tabto(int col)
{
if (current_column < col) {
fprintf(output, "%*s", col-current_column, "");
}
}
void output_left(enum tof type, struct process * proc, char * function_name)
{
struct function * func;
if (current_pid) {
#if 0 /* FIXME: should I do this? */
if (current_pid == proc->pid
&& proc->type_being_displayed == LT_TOF_FUNCTION
&& proc->type_being_displayed == type) {
tabto(opt_a);
fprintf(output, "= ???\n");
} else
#endif
fprintf(output, " <unfinished ...>\n");
current_pid=0;
current_column=0;
}
current_pid=proc->pid;
proc->type_being_displayed = type;
begin_of_line(type, proc);
current_column += fprintf(output, "%s(", function_name);
func = name2func(function_name);
if (!func) {
int i;
for(i=0; i<4; i++) {
current_column += display_arg(type, proc, i, LT_PT_UNKNOWN);
current_column += fprintf(output, ", ");
}
current_column += display_arg(type, proc, 4, LT_PT_UNKNOWN);
return;
} else {
int i;
for(i=0; i< func->num_params - func->params_right - 1; i++) {
current_column += display_arg(type, proc, i, func->param_types[i]);
current_column += fprintf(output, ", ");
}
if (func->num_params>func->params_right) {
current_column += display_arg(type, proc, i, func->param_types[i]);
if (func->params_right) {
current_column += fprintf(output, ", ");
}
}
if (!func->params_right && func->return_type == LT_PT_VOID) {
current_column += fprintf(output, ") ");
tabto(opt_a);
fprintf(output, "= <void>\n");
current_pid = 0;
current_column = 0;
}
}
}
void output_right(enum tof type, struct process * proc, char * function_name)
{
struct function * func = name2func(function_name);
if (func && func->params_right==0 && func->return_type == LT_PT_VOID) {
return;
}
if (current_pid && current_pid!=proc->pid) {
fprintf(output, " <unfinished ...>\n");
begin_of_line(type, proc);
current_column += fprintf(output, "<... %s resumed> ", function_name);
} else if (!current_pid) {
begin_of_line(type, proc);
current_column += fprintf(output, "<... %s resumed> ", function_name);
}
if (!func) {
current_column += fprintf(output, ") ");
tabto(opt_a);
fprintf(output, "= ");
display_arg(type, proc, -1, LT_PT_UNKNOWN);
fprintf(output, "\n");
} else {
int i;
for(i=func->num_params-func->params_right; i<func->num_params-1; i++) {
current_column += display_arg(type, proc, i, func->param_types[i]);
current_column += fprintf(output, ", ");
}
if (func->params_right) {
current_column += display_arg(type, proc, i, func->param_types[i]);
}
current_column += fprintf(output, ") ");
tabto(opt_a);
fprintf(output, "= ");
if (func->return_type == LT_PT_VOID) {
fprintf(output, "<void>");
} else {
display_arg(type, proc, -1, func->return_type);
}
fprintf(output, "\n");
}
current_pid=0;
current_column=0;
}
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