static void
_backtrace(int pid, char *btarg) {
char *proc, *spid, *gdbcmd;
int fd[3], p[2];
int status, cmdfd;
gdbcmd = estrdup("/tmp/gdbcmd.XXXXXX");
if(pipe(p) < 0)
goto done;
closeexec(p[0]);
cmdfd = mkstemp(gdbcmd);
if(cmdfd < 0)
goto done;
fprint(cmdfd, "bt %s\n", btarg);
fprint(cmdfd, "detach\n");
close(cmdfd);
fd[0] = open("/dev/null", O_RDONLY);
fd[1] = p[1];
fd[2] = dup(2);
proc = sxprint("/proc/%d/" PROGTXT, pid);
spid = sxprint("%d", pid);
if(spawn3l(fd, "gdb", "gdb", "-batch", "-x", gdbcmd, proc, spid, nil) < 0) {
unlink(gdbcmd);
goto done;
}
Biobuf bp;
char *s;
Binit(&bp, p[0], OREAD);
while((s = Brdstr(&bp, '\n', 1))) {
Dprint(DStack, "%s\n", s);
free(s);
}
unlink(gdbcmd);
done:
free(gdbcmd);
kill(pid, SIGKILL);
waitpid(pid, &status, 0);
}
char*
area_name(Area *a) {
if(a == nil)
return "<nil>";
if(a->floating)
return "~";
return sxprint("%d", area_idx(a));
}
static void
init_environment(void) {
init_ns();
if(address)
setenv("WMII_ADDRESS", address, true);
else
address = smprint("unix!%s/wmii", ns_path);
setenv("WMII_CONFPATH", sxprint("%s/.wmii%s:%s/wmii%s",
getenv("HOME"), CONFVERSION,
CONFPREFIX, CONFVERSION), true);
}
char*
column_getmode(Area *a) {
return sxprint("%s%cmax", a->mode == Colstack ? "stack" : "default",
a->max ? '+' : '-');
}
