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Getting shared memory size seems to work now.

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This commit is contained in:
Martin Baulig
1998-08-10 12:27:43 +00:00
parent 2e4ec2a85c
commit d44df22180
1 changed files with 50 additions and 1 deletions
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51
sysdeps/freebsd/procmem.c
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@@ -29,6 +29,7 @@
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/resource.h>
#include <vm/vm_object.h>
#include <vm/vm_map.h>
#include <sys/ucred.h>
@@ -39,6 +40,7 @@
static const unsigned long _glibtop_sysdeps_proc_mem =
(1 << GLIBTOP_PROC_MEM_SIZE) +
(1 << GLIBTOP_PROC_MEM_VSIZE) +
(1 << GLIBTOP_PROC_MEM_SHARE) +
(1 << GLIBTOP_PROC_MEM_RESIDENT) +
(1 << GLIBTOP_PROC_MEM_RSS) +
(1 << GLIBTOP_PROC_MEM_RSS_RLIM);
@@ -83,8 +85,10 @@ glibtop_get_proc_mem_p (glibtop *server, glibtop_proc_mem *buf,
{
struct kinfo_proc *pinfo;
struct user *u_addr = (struct user *)USRSTACK;
struct vm_map_entry entry, *first;
struct vmspace *vms, vmspace;
struct vm_object object;
struct plimit plimit;
struct vmspace *vms;
int count;
glibtop_suid_enter (server);
@@ -112,5 +116,50 @@ glibtop_get_proc_mem_p (glibtop *server, glibtop_proc_mem *buf,
buf->resident = buf->rss = (u_int64_t) pagetok
(vms->vm_rssize) << LOG1024;
/* Now we get the shared memory. */
if (kvm_read (server->machine.kd,
(unsigned long) pinfo [0].kp_proc.p_vmspace,
(char *) &vmspace, sizeof (vmspace)) != sizeof (vmspace))
glibtop_error_io_r (server, "kvm_read (vmspace)");
first = vmspace.vm_map.header.next;
if (kvm_read (server->machine.kd,
(unsigned long) vmspace.vm_map.header.next,
(char *) &entry, sizeof (entry)) != sizeof (entry))
glibtop_error_io_r (server, "kvm_read (entry)");
/* Walk through the `vm_map_entry' list ... */
/* I tested this a few times with `mmap'; as soon as you write
* to the mmap'ed area, the object type changes from OBJT_VNODE
* to OBJT_DEFAULT so if seems this really works. */
while (entry.next != first) {
if (kvm_read (server->machine.kd,
(unsigned long) entry.next,
&entry, sizeof (entry)) != sizeof (entry))
glibtop_error_io_r (server, "kvm_read (entry)");
if (entry.eflags & (MAP_ENTRY_IS_A_MAP|MAP_ENTRY_IS_SUB_MAP))
continue;
if (!entry.object.vm_object)
continue;
/* We're only interested in `vm_object's */
if (kvm_read (server->machine.kd,
(unsigned long) entry.object.vm_object,
&object, sizeof (object)) != sizeof (object))
glibtop_error_io_r (server, "kvm_read (object)");
/* If the object is of type vnode, add its size */
if (object.type == OBJT_VNODE)
buf->share += object.un_pager.vnp.vnp_size;
}
buf->flags = _glibtop_sysdeps_proc_mem;
}