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Rewrite get_kinfo_proc_for_pid() to get the kinfo_proc for 

the one process we're interested in, instead of fetching all
of them and only keeping one.

(the old implementation made sense when we were doing the
initial find-this-process-by-pid-or-name by looking through
all the kinfo_procs.)

llvm-svn: 134686
This commit is contained in:
Jason Molenda 2011-07-08 05:04:01 +00:00
parent 904cb14225
commit d7298d3745
1 changed files with 7 additions and 24 deletions
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31
lldb/tools/darwin-threads/examine-threads.c
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@ -96,33 +96,16 @@ get_process_name_for_pid (pid_t pid)
struct kinfo_proc *
get_kinfo_proc_for_pid (pid_t pid, const char *process_name)
{
struct kinfo_proc *all_kinfos;
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL, 0 };
size_t len;
if (sysctl (mib, 3, NULL, &len, NULL, 0) != 0)
struct kinfo_proc *kinfo = (struct kinfo_proc *) malloc (sizeof (struct kinfo_proc));
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, pid };
size_t len = sizeof (struct kinfo_proc);
if (sysctl (mib, sizeof (mib) / sizeof (mib[0]), kinfo, &len, NULL, 0) != 0)
{
printf ("Could not number of processes\n");
free ((void *) kinfo);
printf ("Could not get kinfo_proc for pid %d\n", (int) pid);
exit (1);
}
all_kinfos = (struct kinfo_proc *) malloc (len);
if (sysctl (mib, 3, all_kinfos, &len, NULL, 0) != 0)
{
printf ("Could not get process infos\n");
exit (1);
}
int proc_count, i;
proc_count = len / sizeof (struct kinfo_proc);
for (i = 0 ; i < proc_count; i++)
if (all_kinfos[i].kp_proc.p_pid == pid)
{
struct kinfo_proc *kinfo = (struct kinfo_proc *) malloc (sizeof (struct kinfo_proc));
memcpy (kinfo, &all_kinfos[i], sizeof (struct kinfo_proc));
free ((void *) all_kinfos);
return kinfo;
}
printf ("Did not find process '%s' when re-getting proc table.\n", process_name);
exit (1);
return kinfo;
}
/* Get the basic information (thread_basic_info_t) about a given