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pmap stack detection

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This commit is contained in:
albert
2004-01-26 20:01:56 +00:00
parent 391518de30
commit 1e1218cca8
5 changed files with 63 additions and 20 deletions
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51
pmap.c
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@@ -17,7 +17,8 @@
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include "proc/version.h" // FIXME: we need to link the lib for this :-(
#include "proc/readproc.h"
#include "proc/version.h"
static void usage(void) NORETURN;
static void usage(void){
@@ -75,6 +76,14 @@ static const char *get_args(unsigned pid){
return "[]"; // as good as anything
}
static const char *anon_name(int pid, unsigned KLONG addr, unsigned KLONG len){
const char *cp = " [ anon ]";
proc_t proc;
if (get_proc_stats(pid, &proc)){
if( (proc.start_stack >= addr) && (proc.start_stack <= addr+len) ) cp = " [ stack ]";
}
return cp;
}
static int one_proc(unsigned pid){
char buf[32];
@@ -91,9 +100,9 @@ static int one_proc(unsigned pid){
char flags[32];
const char *perms;
char *tmp; // to clean up unprintables
unsigned long start, end, diff;
unsigned KLONG start, end, diff;
unsigned long long pgoff;
sscanf(mapbuf,"%lx-%lx %31s %Lx", &start, &end, flags, &pgoff);
sscanf(mapbuf,"%"KLF"x-%"KLF"x %31s %Lx", &start, &end, flags, &pgoff);
tmp = strchr(mapbuf,'\n');
if(tmp) *tmp='\0';
tmp = mapbuf;
@@ -125,27 +134,27 @@ static int one_proc(unsigned pid){
if(x_option){
const char *cp = strrchr(mapbuf,'/');
if(cp && cp[1]) cp++;
if(!cp) cp = " [ anon ]"; // yeah, 1 space
if(!cp) cp = anon_name(pid, start, diff);
printf(
(sizeof(long)==8)
? "%016lx %7ld - %7ld %7ld %s %s\n"
: "%08lx %7ld - %7ld %7ld %s %s\n",
(sizeof(KLONG)==8)
? "%016"KLF"x %7lu - %7lu %7lu %s %s\n"
: "%08lx %7lu - %7lu %7lu %s %s\n",
start,
diff>>10,
(flags[3]=='s') ? diff>>10 : 0,
(flags[3]=='p') ? diff>>10 : 0,
(unsigned long)(diff>>10),
(flags[3]=='s') ? (unsigned long)(diff>>10) : 0,
(flags[3]=='p') ? (unsigned long)(diff>>10) : 0,
perms,
cp
);
}else{
const char *cp = strchr(mapbuf,'/');
if(!cp) cp = " [ anon ]"; // yeah, 2 spaces
if(!cp) cp = anon_name(pid, start, diff);
printf(
(sizeof(long)==8)
? "%016lx %6ldK %s %s\n"
: "%08lx %6ldK %s %s\n",
(sizeof(KLONG)==8)
? "%016"KLF"x %6luK %s %s\n"
: "%08lx %6luK %s %s\n",
start,
diff>>10,
(unsigned long)(diff>>10),
perms,
cp
);
@@ -153,7 +162,7 @@ static int one_proc(unsigned pid){
}
if(x_option){
if(sizeof(long)==8){
if(sizeof(KLONG)==8){
printf("---------------- ------ ------ ------ ------\n");
printf(
"total kB %15ld - %7ld %7ld\n",
@@ -171,8 +180,8 @@ static int one_proc(unsigned pid){
);
}
}else{
if(sizeof(long)==8) printf(" total %16ldK\n", (total_shared + total_private) >> 10);
else printf(" total %8ldK\n", (total_shared + total_private) >> 10);
if(sizeof(KLONG)==8) printf(" total %16ldK\n", (total_shared + total_private) >> 10);
else printf(" total %8ldK\n", (total_shared + total_private) >> 10);
}
return 0;
}
@@ -214,7 +223,11 @@ int main(int argc, char *argv[]){
char *walk = *argv;
char *endp;
unsigned long pid;
if(!strncmp("/proc/",walk,6)) walk += 6;
if(!strncmp("/proc/",walk,6)){
walk += 6;
// user allowed to do: pmap /proc/*
if(*walk<'0' || *walk>'9') continue;
}
if(*walk<'0' || *walk>'9') usage();
pid = strtoul(walk, &endp, 0);
if(pid<1ul || pid>0x7ffffffful || *endp) usage();