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| author | Alexander Shishkin | 2010-08-28 23:20:34 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2010-08-28 23:20:34 +0200 |
| commit | 0834a6d3b9daec1f460c3cc836136ace12c53df0 (patch) | |
| tree | 5a1ff91bf23113224ee2a54334c020ff97e0f19a /include | |
| parent | 74c992af5c6b8cfe6214e705bc04f8c2f9d8a304 (diff) | |
| download | busybox-0834a6d3b9daec1f460c3cc836136ace12c53df0.zip busybox-0834a6d3b9daec1f460c3cc836136ace12c53df0.tar.gz | |
pmap: new applet. +1k.
pmap is a tool used to look at processes' memory maps, normally found
in procps package. It provides more readable and easily sortable output
(one line per mapping) from maps/smaps files in /proc/PID/. This would
help in debugging memory usage issues, especially on devices where lots
of typing is not a viable option.
This patch does'n implement -d and -A command line options of GNU pmap,
since those are not that must have features and I was afraid of going
blind from looking at its code.
The implementation takes smaps scanning part out of procps_scan() function
and moves it into procps_read_smaps(), which does more detailed processing
of a single PID's smaps data.
Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/libbb.h | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/include/libbb.h b/include/libbb.h index 3fd7545..43e525c 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -1387,6 +1387,29 @@ enum { COMM_LEN = TASK_COMM_LEN }; enum { COMM_LEN = 16 }; # endif #endif + +struct smaprec { + unsigned long mapped_rw; + unsigned long mapped_ro; + unsigned long shared_clean; + unsigned long shared_dirty; + unsigned long private_clean; + unsigned long private_dirty; + unsigned long stack; + unsigned long smap_pss, smap_swap; + unsigned long smap_size; + unsigned long smap_start; + char smap_mode[5]; + char *smap_name; +}; + +#if !ENABLE_PMAP +#define procps_read_smaps(pid, total, cb, data) \ + procps_read_smaps(pid, total) +#endif +int FAST_FUNC procps_read_smaps(pid_t pid, struct smaprec *total, + void (*cb)(struct smaprec *, void *), void *data); + typedef struct procps_status_t { DIR *dir; IF_FEATURE_SHOW_THREADS(DIR *task_dir;) @@ -1415,13 +1438,7 @@ typedef struct procps_status_t { #endif unsigned tty_major,tty_minor; #if ENABLE_FEATURE_TOPMEM - unsigned long mapped_rw; - unsigned long mapped_ro; - unsigned long shared_clean; - unsigned long shared_dirty; - unsigned long private_clean; - unsigned long private_dirty; - unsigned long stack; + struct smaprec smaps; #endif char state[4]; /* basename of executable in exec(2), read from /proc/N/stat |