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pmap

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This commit is contained in:
albert 2002-10-27 10:35:13 +00:00
parent 2591b1f87f
commit ea4be1f178
5 changed files with 256 additions and 23 deletions
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6
Makefile
View File

@ -47,12 +47,12 @@ usr/include := $(DESTDIR)/usr/include/
BINFILES := $(usr/bin)uptime $(usr/bin)tload $(usr/bin)free $(usr/bin)w \
$(usr/bin)top $(usr/bin)vmstat $(usr/bin)watch $(usr/bin)skill \
$(usr/bin)snice $(bin)kill $(sbin)sysctl \
$(usr/bin)snice $(bin)kill $(sbin)sysctl $(usr/bin)pmap \
$(usr/proc/bin)pgrep $(usr/proc/bin)pkill
MANFILES := $(man1)uptime.1 $(man1)tload.1 $(man1)free.1 $(man1)w.1 \
$(man1)top.1 $(man1)watch.1 $(man1)skill.1 $(man1)kill.1 \
$(man1)snice.1 $(man1)pgrep.1 $(man1)pkill.1 \
$(man1)snice.1 $(man1)pgrep.1 $(man1)pkill.1 $(man1)pmap.1 \
$(man5)sysctl.conf.5 $(man8)vmstat.8 $(man8)sysctl.8
TARFILES := AUTHORS BUGS NEWS README TODO COPYING COPYING.LIB ChangeLog \
@ -146,7 +146,7 @@ w.o: w.c
############ prog.o --> prog
w uptime tload free vmstat utmp pgrep skill: % : %.o $(LIBPROC)
pmap w uptime tload free vmstat utmp pgrep skill: % : %.o $(LIBPROC)
$(CC) $(LDFLAGS) -o $@ $^
top: % : %.o $(LIBPROC)

6
NEWS
View File

@ -1,3 +1,9 @@
procps-3.0.5 --> procps-3.0.6
can build w/o shared library (set SHARED=0)
when IO-wait hidden, count as idle, not as sys
pmap command added (like Sun has)
procps-3.0.4 --> procps-3.0.5
top tolerates super-wide displays

36
pmap.1 Normal file
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@ -0,0 +1,36 @@
'\" t
.\" (The preceding line is a note to broken versions of man to tell
.\" them to pre-process this man page with tbl)
.\" Man page for pmap.
.\" Licensed under version 2 of the GNU General Public License.
.\" Written by Albert Cahalan.
.\"
.TH PMAP 1 "October 26, 2002" "Linux" "Linux User's Manual"
.SH NAME
pmap \- report memory map of a process
.SH SYNOPSIS
.nf
pmap [-x] [-V] pids...
.fi
.SH DESCRIPTION
The pmap command reports the memory map of a process or processes.
.SH "GENERAL OPTIONS"
.TS
l l l.
-x extended Show the extended format.
-V show version Displays version of program.
.TE
.SH "SEE ALSO"
ps(1) pgrep(1)
.SH STANDARDS
No standards apply, but pmap looks an awful lot like a SunOS command.
.SH AUTHOR
Albert Cahalan <albert@users.sf.net> wrote pmap in 2002, and is the current
maintainer of the procps collection. Please send bug reports
to <procps-feedback@lists.sf.net>.

219
pmap.c
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@ -1,34 +1,225 @@
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include "proc/version.h" // FIXME: we need to link the lib for this :-(
void usage(void){
static void usage(void){
fprintf(stderr,
"Usage: pmap [-r] [-x] pid...\n"
"-r ignored (compatibility option)\n"
"-x show details\n"
);
exit(1);
}
int one_proc(unsigned pid){
char cmdbuf[64];
static int V_option;
static int r_option; // ignored -- for SunOS compatibility
static int x_option;
static const char *get_args(unsigned pid){
static char cmdbuf[64];
char buf[32];
int fd;
ssize_t count;
do{
sprintf(buf,"/proc/%u/cmdline",pid);
if( ((fd=open(buf)) == -1) return 1;
if( (( fd=open(buf,O_RDONLY) )) == -1) break;
count = read(fd, cmdbuf, sizeof(cmdbuf)-1);
if(count<1) return 1;
close(fd);
if(count<1) break;
cmdbuf[count] = '\0';
if(!isprint(cmdbuf[0])) break;
while(count--) if(!isprint(cmdbuf[count])) cmdbuf[count]=' ';
return cmdbuf;
}while(0);
do{
char *cp;
sprintf(buf,"/proc/%u/stat",pid);
if( (( fd=open(buf,O_RDONLY) )) == -1) break;
count = read(fd, cmdbuf, sizeof(cmdbuf)-1);
close(fd);
if(count<1) break;
cmdbuf[count] = '\0';
while(count--) if(!isprint(cmdbuf[count])) cmdbuf[count]=' ';
close(fd);
sprintf(buf,"/proc/%u/maps",pid);
if( ((fd=open(buf)) == -1) return 1;
printf("%u: %s\n", pid, cmdbuf);
if(x_option)
printf("Address kB Resident Shared Private Permissions Name\n");
@@@ FIXME FIXME FIXME @@@
cp = strrchr(cmdbuf,')');
if(!cp) break;
cp[0] = ']';
cp[1] = '\0';
cp = strchr(cmdbuf,'(');
if(!cp) break;
if(!isprint(cp[1])) break;
cp[0] = '[';
return cp;
}while(0);
return "[]"; // as good as anything
}
int main(int argc, char *argv[]){
static int one_proc(unsigned pid){
char buf[32];
char mapbuf[9600];
unsigned long total_shared = 0ul;
unsigned long total_private = 0ul;
sprintf(buf,"/proc/%u/maps",pid);
if(!freopen(buf, "r", stdin)) return 1;
printf("%u: %s\n", pid, get_args(pid));
if(x_option)
printf("Address kB Resident Shared Private Permissions Name\n");
while(fgets(mapbuf,sizeof mapbuf,stdin)){
char flags[32];
const char *perms;
char *tmp; // to clean up unprintables
unsigned long start, end, diff;
unsigned long long pgoff;
sscanf(mapbuf,"%lx-%lx %s %Lx", &start, &end, flags, &pgoff);
tmp = strchr(mapbuf,'\n');
if(tmp) *tmp='\0';
tmp = mapbuf;
while(*tmp){
if(!isprint(*tmp)) *tmp='?';
tmp++;
}
if(flags[0]=='r'){
if(flags[1]=='w'){
if(flags[2]=='x') perms = "read/write/exec";
else perms = "read/write ";
}else{
if(flags[2]=='x') perms = "read/exec ";
else perms = "read ";
}
}else{
if(flags[1]=='w'){
if(flags[2]=='x') perms = "write/exec ";
else perms = "write ";
}else{
if(flags[2]=='x') perms = "exec ";
else perms = "none ";
}
}
diff = end-start;
if(flags[3]=='s') total_shared += diff;
if(flags[3]=='p') total_private += diff;
if(x_option){
const char *cp = strrchr(mapbuf,'/');
if(cp && cp[1]) cp++;
if(!cp) cp = " [ anon ]"; // yeah, 1 space
printf(
(sizeof(long)==8)
? "%016lx %7ld - %7ld %7ld %s %s\n"
: "%08lx %7ld - %7ld %7ld %s %s\n",
start,
diff>>10,
(flags[3]=='s') ? diff>>10 : 0,
(flags[3]=='p') ? diff>>10 : 0,
perms,
cp
);
}else{
const char *cp = strchr(mapbuf,'/');
if(!cp) cp = " [ anon ]"; // yeah, 2 spaces
printf(
(sizeof(long)==8)
? "%016lx %6ldK %s %s\n"
: "%08lx %6ldK %s %s\n",
start,
diff>>10,
perms,
cp
);
}
}
if(x_option){
if(sizeof(long)==8){
printf("---------------- ------ ------ ------ ------\n");
printf(
"total kB %15ld - %7ld %7ld\n",
(total_shared + total_private) >> 10,
total_shared >> 10,
total_private >> 10
);
}else{
printf("-------- ------ ------ ------ ------\n");
printf(
"total kB %7ld - %7ld %7ld\n",
(total_shared + total_private) >> 10,
total_shared >> 10,
total_private >> 10
);
}
}else{
if(sizeof(long)==8) printf(" total %16ldK\n", (total_shared + total_private) >> 10);
else printf(" total %8ldK\n", (total_shared + total_private) >> 10);
}
return 0;
}
int main(int argc, char *argv[]){
unsigned *pidlist;
unsigned count = 0;
unsigned u;
int ret = 0;
if(argc<2) usage();
pidlist = malloc(sizeof(unsigned)*argc); // a bit more than needed perhaps
while(*++argv){
if(!strcmp("--version",*argv)){
V_option++;
continue;
}
if(**argv=='-'){
char *walk = *argv;
if(!walk[1]) usage();
while(*++walk){
switch(*walk){
case 'V':
V_option++;
break;
case 'x':
x_option++;
break;
case 'r':
r_option++;
break;
default:
usage();
}
}
}else{
char *walk = *argv;
char *endp;
unsigned long pid;
if(!strncmp("/proc/",walk,6)) walk += 6;
if(*walk<'0' || *walk>'9') usage();
pid = strtoul(walk, &endp, 0);
if(pid<1ul || pid>0x7ffffffful || *endp) usage();
pidlist[count++] = pid;
}
}
if(x_option>1 || V_option>1 || r_option>1) usage(); // dupes
if(V_option){
if(count|x_option|r_option) usage();
fprintf(stdout, "pmap (%s)\n", procps_version);
return 0;
}
if(count<1) usage(); // no processes
u=0;
while(u<count) ret |= one_proc(pidlist[u++]);
return ret;
}

4
vmstat.c
View File

@ -191,7 +191,8 @@ int main(int argc, char *argv[]) {
#endif
unsigned int moreheaders=TRUE;
unsigned int tog=0; /* toggle switch for cleaner code */
unsigned int i,hz;
unsigned int i;
unsigned int hz = Hertz;
unsigned int running,blocked,swapped;
jiff cpu_use[2], cpu_nic[2], cpu_sys[2], cpu_idl[2], cpu_iow[2];
jiff duse,dsys,didl,Div,divo2;
@ -257,7 +258,6 @@ int main(int argc, char *argv[]) {
dsys= *cpu_sys;
didl= *cpu_idl + *cpu_iow;
Div= duse+dsys+didl;
hz=Hertz; /* get ticks/s from libproc */
divo2= Div/2UL;
printf(format,
running,blocked,swapped,