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authorRob Landley <rob@landley.net>2013-08-27 23:48:54 -0500
committerRob Landley <rob@landley.net>2013-08-27 23:48:54 -0500
commit455865a837f2a6c44f91e5a5a2cd40c3a64d4b68 (patch)
tree6eb787bd75914d35c7d742e02dc7be9c279d3d03 /toys/pending
parent8b5c671958071ee2a9967551f0490623b73e30b5 (diff)
downloadtoybox-455865a837f2a6c44f91e5a5a2cd40c3a64d4b68.tar.gz
Rewrite pmap to be simpler and match other implementation's output more closely.
Diffstat (limited to 'toys/pending')
-rw-r--r--toys/pending/pmap.c128
1 files changed, 0 insertions, 128 deletions
diff --git a/toys/pending/pmap.c b/toys/pending/pmap.c
deleted file mode 100644
index 7d54c430..00000000
--- a/toys/pending/pmap.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/* pmap.c - Reports the memory map of a process or processes.
- *
- * Copyright 2013 Ranjan Kumar <ranjankumar.bth@gmail.com>
- * Copyright 2013 Kyungwan Han <asura321@gmail.com>
- *
- * No Standard.
- *
-USE_PMAP(NEWTOY(pmap, "xq", TOYFLAG_BIN))
-
-config PMAP
- bool "pmap"
- default y
- help
- usage: pmap [-xq] [pids...]
-
- Reports the memory map of a process or processes.
-
- -x Show the extended format.
- -q Do not display some header/footer lines.
-*/
-#define FOR_pmap
-#include "toys.h"
-
-#if ULONG_MAX == 0xffffffff
- # define TAB "\t"
- # define WIDTH "8"
- # define DASHES ""
-#else
- # define TAB "\t\t"
- # define WIDTH "16"
- # define DASHES "--------"
-#endif
-
-struct _smaps {
- unsigned long start_addr, size, pss, pdirty, swap;
- char mode[5], *mapping;
-};
-
-//Display mapping info.
-static void show_maps(struct _smaps *map)
-{
- xprintf("%0" WIDTH "lx ", map->start_addr);
- if (toys.optflags & FLAG_x)
- xprintf("%7lu %7lu %7lu %7lu ", map->size, map->pss, map->pdirty, map->swap);
- else xprintf("%7luK", map->size);
- xprintf(" %.4s \n", map->mode, map->mapping);
- free(map->mapping);
-}
-
-//Read "/proc/pid/smaps" file and extract data.
-static int read_smaps(pid_t pid, struct _smaps *total)
-{
- struct _smaps curmap;
- char *line;
- int fd, nitems;
-
- snprintf(toybuf, sizeof(toybuf), "/proc/%u/smaps", pid);
- if ((fd = open(toybuf, O_RDONLY)) < 0) return fd;
- memset(&curmap, 0, sizeof(struct _smaps));
- while ((line = get_line(fd))) {
- char *ptr = NULL;
- *toybuf = *(toybuf+34) = *(toybuf+40) = '\0';
- //1st line format -> start_addr-End_addr rw-s ADR M:m OFS
- if ((ptr = strchr(line, '-'))) {
- if (curmap.size) show_maps(&curmap);
- memset(&curmap, 0, sizeof(struct _smaps));
- nitems = sscanf(line, "%s %s %*s %*s %*s %s\n", toybuf, toybuf+34, toybuf+40);
- if (nitems >= 2) {
- ptr = strchr(toybuf, '-');
- *ptr = '\0';
- total->size += curmap.size = (strtoul(++ptr, NULL, 16) -
- (curmap.start_addr = strtoul(toybuf, NULL, 16))) >> 10;
- strncpy(curmap.mode, toybuf+34, sizeof(curmap.mode)-1);
- if (!*(toybuf+40)) curmap.mapping = xstrdup(" [ anon ]");
- else curmap.mapping = xstrdup(toybuf+40);
- }
- } else { //2nd line onwards..
- unsigned long val = 0;
- nitems = sscanf(line, "%s %lu\n", toybuf, &val);
- if (nitems == 2) {
- if (!strcmp("Pss:", toybuf)) total->pss += (curmap.pss = val);
- else if (!strcmp("Private_Dirty:", toybuf)) total->pdirty += (curmap.pdirty = val);
- else if (!strcmp("Swap:", toybuf)) total->swap += (curmap.swap = val);
- }
- }
- free(line);
- }
- if (curmap.size) show_maps(&curmap);
- xclose(fd);
- return 0;
-}
-
-void pmap_main(void)
-{
- struct _smaps total;
- int fd;
-
- while (*toys.optargs) {
- pid_t pid = get_int_value(*toys.optargs++, 0, INT_MAX);
- snprintf(toybuf, sizeof(toybuf), "/proc/%u/cmdline", pid);
- if ((fd = open(toybuf, O_RDONLY)) == -1) xprintf("%u: [no such process]\n", pid);
- else {
- ssize_t len = readall(fd, toybuf, sizeof(toybuf) -1);
- if (len <= 0) xprintf("%u: [no such process]\n", (int)pid);
- else {
- toybuf[len] = '\0';
- while (--len >= 0 && toybuf[len] == '\0') continue;
- for (; len > 0; len--)
- if ((unsigned char)toybuf[len] < ' ') toybuf[len] = ' ';
- xprintf("%u: %s\n", (int)pid, toybuf);
- }
- xclose(fd);
- }
- if (!(toys.optflags & FLAG_q) && (toys.optflags & FLAG_x))
- xprintf("Address" TAB " Kbytes PSS Dirty Swap Mode Mapping\n");
-
- memset(&total, 0, sizeof(struct _smaps));
- if (read_smaps(pid, &total)) toys.exitval = 42;
- else { //to display total mapping.
- if (!(toys.optflags & FLAG_q) )
- (toys.optflags & FLAG_x)
- ? xprintf("--------" DASHES " ------ ------ ------ ------\n"
- "total" TAB " %7lu %7lu %7lu %7lu\n",
- total.size, total.pss, total.pdirty, total.swap)
- : xprintf("mapped: %luK\n", total.size);
- }
- }
-}