proc.c revision 3219f320604810532a4938dda8f9dfadb0e840f3 
1#if HAVE_CONFIG_H
2#include "config.h"
3#endif
4
5#include <sys/types.h>
6#include <string.h>
7#include <stdio.h>
8#include <errno.h>
9#include <stdlib.h>
10
11#include "ltrace.h"
12#include "options.h"
13#include "elf.h"
14
15struct process *open_program(char *filename)
16{
17	struct process *proc;
18	proc = malloc(sizeof(struct process));
19	if (!proc) {
20		perror("malloc");
21		exit(1);
22	}
23	memset(proc, 0, sizeof(struct process));
24	proc->filename = filename;
25	proc->pid = 0;
26	proc->breakpoints = NULL;
27	proc->breakpoints_enabled = -1;
28	proc->callstack_depth = 0;
29	proc->breakpoint_being_enabled = NULL;
30	breakpoints_init(proc);
31	proc->next = NULL;
32
33	proc->next = list_of_processes;
34	list_of_processes = proc;
35	return proc;
36}
37
38void open_pid(pid_t pid, int verbose)
39{
40	struct process *proc;
41	char *filename;
42
43	if (trace_pid(pid) < 0) {
44		fprintf(stderr, "Cannot attach to pid %u: %s\n", pid,
45			strerror(errno));
46		return;
47	}
48
49	filename = pid2name(pid);
50
51#if 0
52	if (!filename) {
53		if (verbose) {
54			fprintf(stderr, "Cannot trace pid %u: %s\n", pid,
55				strerror(errno));
56		}
57		return;
58	}
59#endif
60
61	proc = open_program(filename);
62	proc->pid = pid;
63}
64