Merge "Lose ps to toybox."
This commit is contained in:
Elliott Hughes
Gerrit Code Review
commit
31701d6074
|
|
@ -36,7 +36,6 @@ OUR_TOOLS := \
|
|||
log \
|
||||
nandread \
|
||||
newfs_msdos \
|
||||
ps \
|
||||
sendevent \
|
||||
start \
|
||||
stop \
|
||||
|
|
|
|||
340
toolbox/ps.c
340
toolbox/ps.c
|
|
@ -1,340 +0,0 @@
|
|||
#include <ctype.h>
|
||||
#include <dirent.h>
|
||||
#include <fcntl.h>
|
||||
#include <inttypes.h>
|
||||
#include <pwd.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include <cutils/sched_policy.h>
|
||||
|
||||
static char *nexttoksep(char **strp, char *sep)
|
||||
{
|
||||
char *p = strsep(strp,sep);
|
||||
return (p == 0) ? "" : p;
|
||||
}
|
||||
static char *nexttok(char **strp)
|
||||
{
|
||||
return nexttoksep(strp, " ");
|
||||
}
|
||||
|
||||
#define SHOW_PRIO 1
|
||||
#define SHOW_TIME 2
|
||||
#define SHOW_POLICY 4
|
||||
#define SHOW_CPU 8
|
||||
#define SHOW_MACLABEL 16
|
||||
#define SHOW_NUMERIC_UID 32
|
||||
#define SHOW_ABI 64
|
||||
|
||||
#if __LP64__
|
||||
#define PC_WIDTH 10 /* Realistically, the top bits will be 0, so don't waste space. */
|
||||
#else
|
||||
#define PC_WIDTH (2*sizeof(uintptr_t))
|
||||
#endif
|
||||
|
||||
static int display_flags = 0;
|
||||
static int ppid_filter = 0;
|
||||
|
||||
static void print_exe_abi(int pid);
|
||||
|
||||
static int ps_line(int pid, int tid)
|
||||
{
|
||||
char statline[1024];
|
||||
char cmdline[1024];
|
||||
char macline[1024];
|
||||
char user[32];
|
||||
struct stat stats;
|
||||
int r;
|
||||
char *ptr, *name, *state;
|
||||
int ppid;
|
||||
unsigned rss, vss;
|
||||
uintptr_t eip;
|
||||
unsigned utime, stime;
|
||||
int prio, nice, rtprio, sched, psr;
|
||||
struct passwd *pw;
|
||||
|
||||
snprintf(statline, sizeof(statline), "/proc/%d", tid ? tid : pid);
|
||||
stat(statline, &stats);
|
||||
|
||||
if (tid) {
|
||||
snprintf(statline, sizeof(statline), "/proc/%d/task/%d/stat", pid, tid);
|
||||
cmdline[0] = 0;
|
||||
snprintf(macline, sizeof(macline), "/proc/%d/task/%d/attr/current", pid, tid);
|
||||
} else {
|
||||
snprintf(statline, sizeof(statline), "/proc/%d/stat", pid);
|
||||
snprintf(cmdline, sizeof(cmdline), "/proc/%d/cmdline", pid);
|
||||
snprintf(macline, sizeof(macline), "/proc/%d/attr/current", pid);
|
||||
int fd = open(cmdline, O_RDONLY);
|
||||
if (fd == 0) {
|
||||
r = 0;
|
||||
} else {
|
||||
r = read(fd, cmdline, 1023);
|
||||
close(fd);
|
||||
if (r < 0) r = 0;
|
||||
}
|
||||
cmdline[r] = 0;
|
||||
}
|
||||
|
||||
int fd = open(statline, O_RDONLY);
|
||||
if (fd == 0) return -1;
|
||||
r = read(fd, statline, 1023);
|
||||
close(fd);
|
||||
if (r < 0) return -1;
|
||||
statline[r] = 0;
|
||||
|
||||
ptr = statline;
|
||||
nexttok(&ptr); // skip pid
|
||||
ptr++; // skip "("
|
||||
|
||||
name = ptr;
|
||||
ptr = strrchr(ptr, ')'); // Skip to *last* occurence of ')',
|
||||
*ptr++ = '\0'; // and null-terminate name.
|
||||
|
||||
ptr++; // skip " "
|
||||
state = nexttok(&ptr);
|
||||
ppid = atoi(nexttok(&ptr));
|
||||
nexttok(&ptr); // pgrp
|
||||
nexttok(&ptr); // sid
|
||||
nexttok(&ptr); // tty
|
||||
nexttok(&ptr); // tpgid
|
||||
nexttok(&ptr); // flags
|
||||
nexttok(&ptr); // minflt
|
||||
nexttok(&ptr); // cminflt
|
||||
nexttok(&ptr); // majflt
|
||||
nexttok(&ptr); // cmajflt
|
||||
#if 1
|
||||
utime = atoi(nexttok(&ptr));
|
||||
stime = atoi(nexttok(&ptr));
|
||||
#else
|
||||
nexttok(&ptr); // utime
|
||||
nexttok(&ptr); // stime
|
||||
#endif
|
||||
nexttok(&ptr); // cutime
|
||||
nexttok(&ptr); // cstime
|
||||
prio = atoi(nexttok(&ptr));
|
||||
nice = atoi(nexttok(&ptr));
|
||||
nexttok(&ptr); // threads
|
||||
nexttok(&ptr); // itrealvalue
|
||||
nexttok(&ptr); // starttime
|
||||
vss = strtoul(nexttok(&ptr), 0, 10); // vsize
|
||||
rss = strtoul(nexttok(&ptr), 0, 10); // rss
|
||||
nexttok(&ptr); // rlim
|
||||
nexttok(&ptr); // startcode
|
||||
nexttok(&ptr); // endcode
|
||||
nexttok(&ptr); // startstack
|
||||
nexttok(&ptr); // kstkesp
|
||||
eip = strtoul(nexttok(&ptr), 0, 10); // kstkeip
|
||||
nexttok(&ptr); // signal
|
||||
nexttok(&ptr); // blocked
|
||||
nexttok(&ptr); // sigignore
|
||||
nexttok(&ptr); // sigcatch
|
||||
nexttok(&ptr); // wchan
|
||||
nexttok(&ptr); // nswap
|
||||
nexttok(&ptr); // cnswap
|
||||
nexttok(&ptr); // exit signal
|
||||
psr = atoi(nexttok(&ptr)); // processor
|
||||
rtprio = atoi(nexttok(&ptr)); // rt_priority
|
||||
sched = atoi(nexttok(&ptr)); // scheduling policy
|
||||
|
||||
nexttok(&ptr); // tty
|
||||
|
||||
if (tid != 0) {
|
||||
ppid = pid;
|
||||
pid = tid;
|
||||
}
|
||||
|
||||
pw = getpwuid(stats.st_uid);
|
||||
if (pw == 0 || (display_flags & SHOW_NUMERIC_UID)) {
|
||||
snprintf(user, sizeof(user), "%d", (int)stats.st_uid);
|
||||
} else {
|
||||
snprintf(user, sizeof(user), "%s", pw->pw_name);
|
||||
}
|
||||
|
||||
if (ppid_filter != 0 && ppid != ppid_filter) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (display_flags & SHOW_MACLABEL) {
|
||||
fd = open(macline, O_RDONLY);
|
||||
strcpy(macline, "-");
|
||||
if (fd >= 0) {
|
||||
r = read(fd, macline, sizeof(macline)-1);
|
||||
close(fd);
|
||||
if (r > 0)
|
||||
macline[r] = 0;
|
||||
}
|
||||
printf("%-30s ", macline);
|
||||
}
|
||||
|
||||
printf("%-9s %-5d %-5d %-6d %-5d", user, pid, ppid, vss / 1024, rss * 4);
|
||||
if (display_flags & SHOW_CPU)
|
||||
printf(" %-2d", psr);
|
||||
if (display_flags & SHOW_PRIO)
|
||||
printf(" %-5d %-5d %-5d %-5d", prio, nice, rtprio, sched);
|
||||
if (display_flags & SHOW_POLICY) {
|
||||
SchedPolicy p;
|
||||
if (get_sched_policy(pid, &p) < 0)
|
||||
printf(" un ");
|
||||
else
|
||||
printf(" %.2s ", get_sched_policy_name(p));
|
||||
}
|
||||
char path[PATH_MAX];
|
||||
snprintf(path, sizeof(path), "/proc/%d/wchan", pid);
|
||||
char wchan[10];
|
||||
fd = open(path, O_RDONLY);
|
||||
ssize_t wchan_len = read(fd, wchan, sizeof(wchan));
|
||||
if (wchan_len == -1) {
|
||||
wchan[wchan_len = 0] = '\0';
|
||||
}
|
||||
close(fd);
|
||||
printf(" %10.*s %0*" PRIxPTR " %s ", (int) wchan_len, wchan, (int) PC_WIDTH, eip, state);
|
||||
if (display_flags & SHOW_ABI) {
|
||||
print_exe_abi(pid);
|
||||
}
|
||||
printf("%s", cmdline[0] ? cmdline : name);
|
||||
if (display_flags & SHOW_TIME)
|
||||
printf(" (u:%d, s:%d)", utime, stime);
|
||||
|
||||
printf("\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void print_exe_abi(int pid)
|
||||
{
|
||||
int fd, r;
|
||||
char exeline[1024];
|
||||
|
||||
snprintf(exeline, sizeof(exeline), "/proc/%d/exe", pid);
|
||||
fd = open(exeline, O_RDONLY);
|
||||
if (fd == 0) {
|
||||
printf(" ");
|
||||
return;
|
||||
}
|
||||
r = read(fd, exeline, 5 /* 4 byte ELFMAG + 1 byte EI_CLASS */);
|
||||
close(fd);
|
||||
if (r < 0) {
|
||||
printf(" ");
|
||||
return;
|
||||
}
|
||||
if (memcmp("\177ELF", exeline, 4) != 0) {
|
||||
printf("?? ");
|
||||
return;
|
||||
}
|
||||
switch (exeline[4]) {
|
||||
case 1:
|
||||
printf("32 ");
|
||||
return;
|
||||
case 2:
|
||||
printf("64 ");
|
||||
return;
|
||||
default:
|
||||
printf("?? ");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void ps_threads(int pid)
|
||||
{
|
||||
char tmp[128];
|
||||
DIR *d;
|
||||
struct dirent *de;
|
||||
|
||||
snprintf(tmp,sizeof(tmp),"/proc/%d/task",pid);
|
||||
d = opendir(tmp);
|
||||
if (d == 0) return;
|
||||
|
||||
while ((de = readdir(d)) != 0) {
|
||||
if (isdigit(de->d_name[0])) {
|
||||
int tid = atoi(de->d_name);
|
||||
if (tid == pid) continue;
|
||||
ps_line(pid, tid);
|
||||
}
|
||||
}
|
||||
closedir(d);
|
||||
}
|
||||
|
||||
int ps_main(int argc, char **argv)
|
||||
{
|
||||
DIR *d;
|
||||
struct dirent *de;
|
||||
int pidfilter = 0;
|
||||
int threads = 0;
|
||||
|
||||
while (argc > 1) {
|
||||
if (!strcmp(argv[1], "-t")) {
|
||||
threads = 1;
|
||||
} else if (!strcmp(argv[1], "-n")) {
|
||||
display_flags |= SHOW_NUMERIC_UID;
|
||||
} else if (!strcmp(argv[1], "-x")) {
|
||||
display_flags |= SHOW_TIME;
|
||||
} else if (!strcmp(argv[1], "-Z")) {
|
||||
display_flags |= SHOW_MACLABEL;
|
||||
} else if (!strcmp(argv[1], "-P")) {
|
||||
display_flags |= SHOW_POLICY;
|
||||
} else if (!strcmp(argv[1], "-p")) {
|
||||
display_flags |= SHOW_PRIO;
|
||||
} else if (!strcmp(argv[1], "-c")) {
|
||||
display_flags |= SHOW_CPU;
|
||||
} else if (!strcmp(argv[1], "--abi")) {
|
||||
display_flags |= SHOW_ABI;
|
||||
} else if (!strcmp(argv[1], "--ppid")) {
|
||||
if (argc < 3) {
|
||||
/* Bug 26554285: Use printf because some apps require at least
|
||||
* one line of output to stdout even for errors.
|
||||
*/
|
||||
printf("no ppid\n");
|
||||
return 1;
|
||||
}
|
||||
ppid_filter = atoi(argv[2]);
|
||||
if (ppid_filter == 0) {
|
||||
/* Bug 26554285: Use printf because some apps require at least
|
||||
* one line of output to stdout even for errors.
|
||||
*/
|
||||
printf("bad ppid '%s'\n", argv[2]);
|
||||
return 1;
|
||||
}
|
||||
argc--;
|
||||
argv++;
|
||||
} else {
|
||||
pidfilter = atoi(argv[1]);
|
||||
if (pidfilter == 0) {
|
||||
/* Bug 26554285: Use printf because some apps require at least
|
||||
* one line of output to stdout even for errors.
|
||||
*/
|
||||
printf("bad pid '%s'\n", argv[1]);
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
argc--;
|
||||
argv++;
|
||||
}
|
||||
|
||||
if (display_flags & SHOW_MACLABEL) {
|
||||
printf("LABEL ");
|
||||
}
|
||||
printf("USER PID PPID VSIZE RSS %s%s %sWCHAN %*s %sNAME\n",
|
||||
(display_flags&SHOW_CPU)?"CPU ":"",
|
||||
(display_flags&SHOW_PRIO)?"PRIO NICE RTPRI SCHED ":"",
|
||||
(display_flags&SHOW_POLICY)?"PCY " : "",
|
||||
(int) PC_WIDTH, "PC",
|
||||
(display_flags&SHOW_ABI)?"ABI " : "");
|
||||
|
||||
d = opendir("/proc");
|
||||
if (d == 0) return -1;
|
||||
|
||||
while ((de = readdir(d)) != 0) {
|
||||
if (isdigit(de->d_name[0])) {
|
||||
int pid = atoi(de->d_name);
|
||||
if (!pidfilter || (pidfilter == pid)) {
|
||||
ps_line(pid, 0);
|
||||
if (threads) ps_threads(pid);
|
||||
}
|
||||
}
|
||||
}
|
||||
closedir(d);
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue