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#include "config.h"
#if defined(HAVE_LIBUNWIND)
#include <libunwind.h>
#include <libunwind-ptrace.h>
#endif /* defined(HAVE_LIBUNWIND) */
#include <sys/types.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include "common.h"
Process *
open_program(char *filename, pid_t pid) {
Process *proc;
proc = calloc(sizeof(Process), 1);
if (!proc) {
perror("malloc");
exit(1);
}
proc->filename = strdup(filename);
proc->breakpoints_enabled = -1;
if (pid) {
proc->pid = pid;
#if defined(HAVE_LIBUNWIND)
proc->unwind_priv = _UPT_create(pid);
} else {
proc->unwind_priv = NULL;
#endif /* defined(HAVE_LIBUNWIND) */
}
breakpoints_init(proc);
proc->next = list_of_processes;
list_of_processes = proc;
#if defined(HAVE_LIBUNWIND)
proc->unwind_as = unw_create_addr_space(&_UPT_accessors, 0);
#endif /* defined(HAVE_LIBUNWIND) */
return proc;
}
void
open_pid(pid_t pid) {
Process *proc;
char *filename;
if (trace_pid(pid) < 0) {
fprintf(stderr, "Cannot attach to pid %u: %s\n", pid,
strerror(errno));
return;
}
filename = pid2name(pid);
if (!filename) {
fprintf(stderr, "Cannot trace pid %u: %s\n", pid,
strerror(errno));
return;
}
proc = open_program(filename, pid);
continue_process(pid);
proc->breakpoints_enabled = 1;
}
Process *
pid2proc(pid_t pid) {
Process *tmp;
tmp = list_of_processes;
while (tmp) {
if (pid == tmp->pid) {
return tmp;
}
tmp = tmp->next;
}
return NULL;
}
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