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-rw-r--r--lib/libutil/kvm.c741
1 files changed, 125 insertions, 616 deletions
diff --git a/lib/libutil/kvm.c b/lib/libutil/kvm.c
index 96121cbb454a..2c5de35dd0b8 100644
--- a/lib/libutil/kvm.c
+++ b/lib/libutil/kvm.c
@@ -30,27 +30,14 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * PATCHES MAGIC LEVEL PATCH THAT GOT US HERE
- * -------------------- ----- ----------------------
- * CURRENT PATCH LEVEL: 3 00136
- * -------------------- ----- ----------------------
- *
- * 08 Sep 92 Greenman & Kranenburg Change vaddr calc, move bogus #endif
- * 05 Aug 92 David Greenman Fix kernel namelist db create/use
- * 08 Aug 93 Paul Kranenburg Fix for command line args from ps and w
+ * $Id: kvm.c,v 1.8 1994/02/23 09:56:45 rgrimes Exp $
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)kvm.c 5.18 (Berkeley) 5/7/91";
#endif /* LIBC_SCCS and not lint */
-/*
- * Updated for 386BSD 0.1 by David Greenman (davidg%implode@percy.rain.com)
- * and Paul Kranenburg (pk@cs.few.eur.nl)
- * 20-Aug-1992
- * And again by same on 04-Aug-1993
- */
-
+#define DEBUG 0
#include <sys/param.h>
#include <sys/user.h>
@@ -58,6 +45,8 @@ static char sccsid[] = "@(#)kvm.c 5.18 (Berkeley) 5/7/91";
#include <sys/ioctl.h>
#include <sys/kinfo.h>
#include <sys/tty.h>
+#include <sys/file.h>
+#include <sys/types.h>
#include <machine/vmparam.h>
#include <fcntl.h>
#include <nlist.h>
@@ -67,26 +56,14 @@ static char sccsid[] = "@(#)kvm.c 5.18 (Berkeley) 5/7/91";
#include <paths.h>
#include <stdio.h>
#include <string.h>
+#include <sys/mman.h>
-#ifdef SPPWAIT
-#define NEWVM
-#endif
-
-#ifdef NEWVM
#define btop(x) (((unsigned)(x)) >> PGSHIFT) /* XXX */
#define ptob(x) ((caddr_t)((x) << PGSHIFT)) /* XXX */
#include <vm/vm.h> /* ??? kinfo_proc currently includes this*/
#include <vm/vm_page.h>
#include <vm/swap_pager.h>
#include <sys/kinfo_proc.h>
-#ifdef hp300
-#include <hp300/hp300/pte.h>
-#endif
-#else /* NEWVM */
-#include <machine/pte.h>
-#include <sys/vmmac.h>
-#include <sys/text.h>
-#endif /* NEWVM */
/*
* files
@@ -113,20 +90,13 @@ static union {
char upages[UPAGES][NBPG];
} user;
-#ifdef NEWVM
struct swapblk {
long offset; /* offset in swap device */
long size; /* remaining size of block in swap device */
};
-#endif
/*
* random other stuff
*/
-#ifndef NEWVM
-static struct pte *Usrptmap, *usrpt;
-static struct pte *Sysmap;
-static int Syssize;
-#endif
static int dmmin, dmmax;
static int pcbpf;
static int argaddr0; /* XXX */
@@ -134,22 +104,11 @@ static int argaddr1;
static int swaddr;
static int nswap;
static char *tmp;
-#if defined(hp300)
-static int lowram;
-static struct ste *Sysseg;
-#endif
-#if defined(i386)
static struct pde *PTD;
-#endif
#define basename(cp) ((tmp=rindex((cp), '/')) ? tmp+1 : (cp))
#define MAXSYMSIZE 256
-#if defined(hp300)
-#define pftoc(f) ((f) - lowram)
-#define iskva(v) (1)
-#endif
-
#ifndef pftoc
#define pftoc(f) (f)
#endif
@@ -174,41 +133,36 @@ static struct nlist nl[] = {
#define X_VM_PAGE_HASH_MASK 6
{ "_page_shift" },
#define X_PAGE_SHIFT 7
+ { "_kstack" },
+#define X_KSTACK 8
+ { "_kernel_object" },
+#define X_KERNEL_OBJECT 9
+ { "_btext",},
+#define X_KERNEL_BTEXT 10
/*
* everything here and down, only if a dead kernel
*/
{ "_Sysmap" },
-#define X_SYSMAP 8
+#define X_SYSMAP 11
#define X_DEADKERNEL X_SYSMAP
{ "_Syssize" },
-#define X_SYSSIZE 9
+#define X_SYSSIZE 12
{ "_allproc" },
-#define X_ALLPROC 10
+#define X_ALLPROC 13
{ "_zombproc" },
-#define X_ZOMBPROC 11
+#define X_ZOMBPROC 14
{ "_nproc" },
-#define X_NPROC 12
-#define X_LAST 12
-#if defined(hp300)
- { "_Sysseg" },
-#define X_SYSSEG (X_LAST+1)
- { "_lowram" },
-#define X_LOWRAM (X_LAST+2)
-#endif
-#if defined(i386)
+#define X_NPROC 15
+#define X_LAST 15
{ "_IdlePTD" },
#define X_IdlePTD (X_LAST+1)
-#endif
{ "" },
};
static off_t Vtophys();
static void klseek(), seterr(), setsyserr(), vstodb();
static int getkvars(), kvm_doprocs(), kvm_init();
-#ifdef NEWVM
-static int vatosw();
static int findpage();
-#endif
/*
* returns 0 if files were opened now,
@@ -305,12 +259,6 @@ kvm_close()
kvminit = 0;
kvmfilesopen = 0;
deadkernel = 0;
-#ifndef NEWVM
- if (Sysmap) {
- free(Sysmap);
- Sysmap = NULL;
- }
-#endif
}
kvm_nlist(nl)
@@ -430,9 +378,10 @@ kvm_getprocs(what, arg)
return (-1);
}
copysize = ret;
- if (copysize > ocopysize &&
- (kvmprocbase = (struct kinfo_proc *)malloc(copysize))
- == NULL) {
+ if ((copysize > ocopysize ||
+ kvmprocbase == (struct kinfo_proc *) NULL) &&
+ (kvmprocbase = (struct kinfo_proc *)
+ realloc(kvmprocbase, copysize)) == NULL) {
seterr("out of memory");
return (-1);
}
@@ -489,9 +438,6 @@ kvm_doprocs(what, arg, buff)
struct pgrp pgrp;
struct session sess;
struct tty tty;
-#ifndef NEWVM
- struct text text;
-#endif
/* allproc */
if (kvm_read((void *) nl[X_ALLPROC].n_value, &p,
@@ -507,7 +453,6 @@ again:
seterr("can't read proc at %x", p);
return (-1);
}
-#ifdef NEWVM
if (kvm_read(proc.p_cred, &eproc.e_pcred,
sizeof (struct pcred)) == sizeof (struct pcred))
(void) kvm_read(eproc.e_pcred.pc_ucred, &eproc.e_ucred,
@@ -530,26 +475,6 @@ again:
continue;
break;
}
-#else
- switch(ki_op(what)) {
-
- case KINFO_PROC_PID:
- if (proc.p_pid != (pid_t)arg)
- continue;
- break;
-
-
- case KINFO_PROC_UID:
- if (proc.p_uid != (uid_t)arg)
- continue;
- break;
-
- case KINFO_PROC_RUID:
- if (proc.p_ruid != (uid_t)arg)
- continue;
- break;
- }
-#endif
/*
* gather eproc
*/
@@ -589,23 +514,10 @@ again:
eproc.e_tdev = NODEV;
if (proc.p_wmesg)
kvm_read(proc.p_wmesg, eproc.e_wmesg, WMESGLEN);
-#ifdef NEWVM
(void) kvm_read(proc.p_vmspace, &eproc.e_vm,
sizeof (struct vmspace));
eproc.e_xsize = eproc.e_xrssize =
eproc.e_xccount = eproc.e_xswrss = 0;
-#else
- if (proc.p_textp) {
- kvm_read(proc.p_textp, &text, sizeof (text));
- eproc.e_xsize = text.x_size;
- eproc.e_xrssize = text.x_rssize;
- eproc.e_xccount = text.x_ccount;
- eproc.e_xswrss = text.x_swrss;
- } else {
- eproc.e_xsize = eproc.e_xrssize =
- eproc.e_xccount = eproc.e_xswrss = 0;
- }
-#endif
switch(ki_op(what)) {
@@ -648,7 +560,9 @@ kvm_nextproc()
if (!kvmprocbase && kvm_getprocs(0, 0) == -1)
return (NULL);
if (kvmprocptr >= (kvmprocbase + kvmnprocs)) {
+#if 0
seterr("end of proc list");
+#endif
return (NULL);
}
return((struct proc *)(kvmprocptr++));
@@ -675,12 +589,29 @@ kvm_freeprocs()
}
}
-#ifdef i386
-/* See also ./sys/kern/kern_execve.c */
-#define ARGSIZE (roundup(ARG_MAX, NBPG))
-#endif
+proc_getmem(const struct proc *p, void *buffer, vm_offset_t size, vm_offset_t offset) {
+ int fd;
+ char fn[512+1];
+ sprintf(fn,"/proc/%d",p->p_pid);
+ if (p->p_flag & SSYS)
+ return 0;
+ fd = open(fn,O_RDONLY);
+ if (fd == -1) {
+ return 0;
+ }
+
+ if (lseek(fd, offset, 0) == -1) {
+ close(fd);
+ return 0;
+ }
+ if (read(fd, buffer, size) <= 0) {
+ close(fd);
+ return 0;
+ }
+ close(fd);
+ return 1;
+}
-#ifdef NEWVM
struct user *
kvm_getu(p)
const struct proc *p;
@@ -689,7 +620,7 @@ kvm_getu(p)
register int i;
register char *up;
u_int vaddr;
- struct swapblk swb;
+ int arg_size;
if (kvminit == 0 && kvm_init(NULL, NULL, NULL, 0) == -1)
return (NULL);
@@ -698,48 +629,15 @@ kvm_getu(p)
return (NULL);
}
- argaddr0 = argaddr1 = swaddr = 0;
- if ((p->p_flag & SLOAD) == 0) {
- vm_offset_t maddr;
-
- if (swap < 0) {
- seterr("no swap");
- return (NULL);
- }
- /*
- * Costly operation, better set enable_swap to zero
- * in vm/vm_glue.c, since paging of user pages isn't
- * done yet anyway.
- */
- if (vatosw(p, USRSTACK + i * NBPG, &maddr, &swb) == 0)
- return NULL;
-
- if (maddr == 0 && swb.size < UPAGES * NBPG)
- return NULL;
-
- for (i = 0; i < UPAGES; i++) {
- if (maddr) {
- (void) lseek(mem, maddr + i * NBPG, 0);
- if (read(mem,
- (char *)user.upages[i], NBPG) != NBPG) {
- seterr(
- "can't read u for pid %d from %s",
- p->p_pid, swapf);
- return NULL;
- }
- } else {
- (void) lseek(swap, swb.offset + i * NBPG, 0);
- if (read(swap,
- (char *)user.upages[i], NBPG) != NBPG) {
- seterr(
- "can't read u for pid %d from %s",
- p->p_pid, swapf);
- return NULL;
- }
- }
+ if (!deadkernel) {
+ if (proc_getmem(p, user.upages, sizeof user.upages, USRSTACK)) {
+ kp->kp_eproc.e_vm.vm_rssize =
+ kp->kp_eproc.e_vm.vm_pmap.pm_stats.resident_count; /* XXX */
+ return &user.user;
}
- return(&user.user);
}
+
+ argaddr0 = argaddr1 = 0;
/*
* Read u-area one page at a time for the benefit of post-mortems
*/
@@ -753,31 +651,17 @@ kvm_getu(p)
}
up += CLBYTES;
}
+
pcbpf = (int) btop(p->p_addr); /* what should this be really? */
/*
* Conjure up a physical address for the arguments.
*/
-#ifdef hp300
- if (kp->kp_eproc.e_vm.vm_pmap.pm_ptab) {
- struct pte pte[CLSIZE*2];
-
- klseek(kmem,
- (long)&kp->kp_eproc.e_vm.vm_pmap.pm_ptab
- [btoc(USRSTACK-CLBYTES*2)], 0);
- if (read(kmem, (char *)&pte, sizeof(pte)) == sizeof(pte)) {
-#if CLBYTES < 2048
- argaddr0 = ctob(pftoc(pte[CLSIZE*0].pg_pfnum));
-#endif
- argaddr1 = ctob(pftoc(pte[CLSIZE*1].pg_pfnum));
- }
- }
-#endif
kp->kp_eproc.e_vm.vm_rssize =
kp->kp_eproc.e_vm.vm_pmap.pm_stats.resident_count; /* XXX */
- vaddr = (u_int)kp->kp_eproc.e_vm.vm_maxsaddr + MAXSSIZ - ARGSIZE;
+ vaddr = (u_int)kp->kp_eproc.e_vm.vm_minsaddr;
+ arg_size = USRSTACK - vaddr;
-#ifdef i386
if (kp->kp_eproc.e_vm.vm_pmap.pm_pdir) {
struct pde pde;
@@ -794,239 +678,116 @@ kvm_getu(p)
seterr("kvm_getu: lseek");
if (read(mem, (char *)&pte, sizeof pte) == sizeof pte) {
if (pte.pg_v) {
- argaddr1 = (long)ctob(pte.pg_pfnum);
- } else {
- goto hard;
+ argaddr1 = (pte.pg_pfnum << PGSHIFT) |
+ ((u_long)vaddr & (NBPG-1));
}
} else {
seterr("kvm_getu: read");
}
- } else {
- goto hard;
}
}
-#endif /* i386 */
-
-hard:
- if (vatosw(p, vaddr, &argaddr1, &swb)) {
- if (argaddr1 == 0 && swb.size >= ARGSIZE)
- swaddr = swb.offset;
- }
return(&user.user);
}
-#else
-struct user *
-kvm_getu(p)
- const struct proc *p;
-{
- struct pte *pteaddr, apte;
- struct pte arguutl[HIGHPAGES+(CLSIZE*2)];
- register int i;
- int ncl;
-
- if (kvminit == 0 && kvm_init(NULL, NULL, NULL, 0) == -1)
- return (NULL);
- if (p->p_stat == SZOMB) {
- seterr("zombie process");
- return (NULL);
- }
- if ((p->p_flag & SLOAD) == 0) {
- if (swap < 0) {
- seterr("no swap");
- return (NULL);
- }
- (void) lseek(swap, (long)dtob(p->p_swaddr), 0);
- if (read(swap, (char *)&user.user, sizeof (struct user)) !=
- sizeof (struct user)) {
- seterr("can't read u for pid %d from %s",
- p->p_pid, swapf);
- return (NULL);
- }
- pcbpf = 0;
- argaddr0 = 0;
- argaddr1 = 0;
- return (&user.user);
- }
- pteaddr = &Usrptmap[btokmx(p->p_p0br) + p->p_szpt - 1];
- klseek(kmem, (long)pteaddr, 0);
- if (read(kmem, (char *)&apte, sizeof(apte)) != sizeof(apte)) {
- seterr("can't read indir pte to get u for pid %d from %s",
- p->p_pid, kmemf);
- return (NULL);
- }
- lseek(mem, (long)ctob(pftoc(apte.pg_pfnum+1)) - sizeof(arguutl), 0);
- if (read(mem, (char *)arguutl, sizeof(arguutl)) != sizeof(arguutl)) {
- seterr("can't read page table for u of pid %d from %s",
- p->p_pid, memf);
- return (NULL);
- }
- if (arguutl[0].pg_fod == 0 && arguutl[0].pg_pfnum)
- argaddr0 = ctob(pftoc(arguutl[0].pg_pfnum));
- else
- argaddr0 = 0;
- if (arguutl[CLSIZE*1].pg_fod == 0 && arguutl[CLSIZE*1].pg_pfnum)
- argaddr1 = ctob(pftoc(arguutl[CLSIZE*1].pg_pfnum));
- else
- argaddr1 = 0;
- pcbpf = arguutl[CLSIZE*2].pg_pfnum;
- ncl = (sizeof (struct user) + CLBYTES - 1) / CLBYTES;
- while (--ncl >= 0) {
- i = ncl * CLSIZE;
- lseek(mem,
- (long)ctob(pftoc(arguutl[(CLSIZE*2)+i].pg_pfnum)), 0);
- if (read(mem, user.upages[i], CLBYTES) != CLBYTES) {
- seterr("can't read page %d of u of pid %d from %s",
- arguutl[(CLSIZE*2)+i].pg_pfnum, p->p_pid, memf);
- return(NULL);
- }
- }
- return (&user.user);
-}
-#endif
char *
kvm_getargs(p, up)
const struct proc *p;
const struct user *up;
{
-#ifdef i386
- /* See also ./sys/kern/kern_execve.c */
- static char cmdbuf[ARGSIZE];
- static union {
- char argc[ARGSIZE];
- int argi[ARGSIZE/sizeof (int)];
- } argspac;
-#else
- static char cmdbuf[CLBYTES*2];
- static union {
- char argc[CLBYTES*2];
- int argi[CLBYTES*2/sizeof (int)];
- } argspac;
-#endif
+ int arg_size, arg_offset;
+ static char cmdbuf[ARG_MAX];
+ char argc[ARG_MAX*3];
+ int *argv;
register char *cp;
- register int *ip;
char c;
int nbad;
-#ifndef NEWVM
- struct dblock db;
+ char *cmdbufp;
+ vm_offset_t vaddr;
+ char procfile[16];
+ int mmfd;
+#if 0
+ char *argc = NULL;
#endif
- const char *file;
- int stkoff = 0;
-#if defined(NEWVM) && defined(hp300)
- stkoff = 20; /* XXX for sigcode */
-#endif
- if (up == NULL || p->p_pid == 0 || p->p_pid == 2)
- goto retucomm;
- if ((p->p_flag & SLOAD) == 0 || argaddr1 == 0) {
-#ifdef NEWVM
- if (swaddr == 0)
- goto retucomm; /* XXX for now */
-#ifdef i386
- (void) lseek(swap, swaddr, 0);
- if (read(swap, &argspac.argc[0], ARGSIZE) != ARGSIZE)
- goto bad;
-#else
- if (argaddr0) {
- lseek(swap, (long)argaddr0, 0);
- if (read(swap, (char *)&argspac, CLBYTES) != CLBYTES)
- goto bad;
- } else
- bzero(&argspac, CLBYTES);
- lseek(swap, (long)argaddr1, 0);
- if (read(swap, &argspac.argc[CLBYTES], CLBYTES) != CLBYTES)
- goto bad;
-#endif
-#else
- if (swap < 0 || p->p_ssize == 0)
- goto retucomm;
- vstodb(0, CLSIZE, &up->u_smap, &db, 1);
- (void) lseek(swap, (long)dtob(db.db_base), 0);
- if (read(swap, (char *)&argspac.argc[CLBYTES], CLBYTES)
- != CLBYTES)
- goto bad;
- vstodb(1, CLSIZE, &up->u_smap, &db, 1);
- (void) lseek(swap, (long)dtob(db.db_base), 0);
- if (read(swap, (char *)&argspac.argc[0], CLBYTES) != CLBYTES)
- goto bad;
- file = swapf;
+ *cmdbuf = 0;
+
+ vaddr = (u_int)((struct kinfo_proc *)p)->kp_eproc.e_vm.vm_minsaddr;
+ arg_size = USRSTACK - vaddr;
+
+ if (arg_size >= 3*ARG_MAX)
+ goto bad;
+
+#if 0
+ sprintf(procfile, "/proc/%d", p->p_pid);
+ if ((mmfd = open(procfile, O_RDONLY, 0)) == -1) {
+printf("failed to open %s\n",procfile);
+ goto bad;
+ }
+
+ if ((argc = mmap(0, arg_size, PROT_READ, MAP_FILE, mmfd, vaddr))
+ == (char *)-1) {
+printf("failed to mmap %s error=%s\n", procfile, strerror(errno));
+ goto bad;
+ }
#endif
- } else {
-#ifdef i386
- lseek(mem, (long)argaddr1, 0);
- if (read(mem, &argspac.argc[0], ARGSIZE) != ARGSIZE)
+
+ if (!proc_getmem(p, argc, arg_size, vaddr)) {
+ if ((p->p_flag & SLOAD) == 0 || argaddr1 == 0) {
goto bad;
-#else
- if (argaddr0) {
- lseek(mem, (long)argaddr0, 0);
- if (read(mem, (char *)&argspac, CLBYTES) != CLBYTES)
+ } else {
+ lseek(mem, (long)argaddr1, 0);
+ if (read(mem, argc, arg_size) != arg_size)
goto bad;
- } else
- bzero(&argspac, CLBYTES);
- lseek(mem, (long)argaddr1, 0);
- if (read(mem, &argspac.argc[CLBYTES], CLBYTES) != CLBYTES)
- goto bad;
-#endif
- file = (char *) memf;
+ }
}
+ argv = (int *)argc;
+
+ arg_offset = argv[0] - vaddr;
+ if (arg_offset >= 3*ARG_MAX)
+ goto bad;
+
nbad = 0;
-#ifdef i386
- ip = &argspac.argi[(ARGSIZE-ARG_MAX)/sizeof (int)];
-
- for (cp = (char *)ip; cp < &argspac.argc[ARGSIZE-stkoff]; cp++) {
-#else
- ip = &argspac.argi[CLBYTES*2/sizeof (int)];
- ip -= 2; /* last arg word and .long 0 */
- ip -= stkoff / sizeof (int);
- while (*--ip) {
- if (ip == argspac.argi)
- goto retucomm;
- }
- *(char *)ip = ' ';
- ip++;
- for (cp = (char *)ip; cp < &argspac.argc[CLBYTES*2-stkoff]; cp++) {
-#endif
- c = *cp;
+ cmdbufp = cmdbuf;
+ for (cp = &argc[arg_offset]; cp < &argc[arg_size]; cp++, cmdbufp++) {
+ c = *cmdbufp = *cp;
if (c == 0) { /* convert null between arguments to space */
- *cp = ' ';
+ *cmdbufp = ' ';
if (*(cp+1) == 0) break; /* if null argument follows then no more args */
}
else if (c < ' ' || c > 0176) {
if (++nbad >= 5*(0+1)) { /* eflg -> 0 XXX */ /* limit number of bad chars to 5 */
- *cp++ = '?';
+ *cmdbufp++ = '?';
break;
}
- *cp = '?';
+ *cmdbufp = '?';
}
else if (0 == 0 && c == '=') { /* eflg -> 0 XXX */
- while (*--cp != ' ')
- if (cp <= (char *)ip)
+ while (*--cmdbufp != ' ')
+ if (cmdbufp <= cmdbuf)
break;
break;
}
}
- *cp = 0;
- while (*--cp == ' ')
- *cp = 0;
- cp = (char *)ip;
- (void) strcpy(cmdbuf, cp);
- if (cp[0] == '-' || cp[0] == '?' || cp[0] <= ' ') {
+ *cmdbufp = 0;
+
+ while (*--cmdbufp == ' ')
+ *cmdbufp = 0;
+
+ if (cmdbuf[0] == '-' || cmdbuf[0] == '?' || cmdbuf[0] <= ' ') {
+bad:
(void) strcat(cmdbuf, " (");
(void) strncat(cmdbuf, p->p_comm, sizeof(p->p_comm));
(void) strcat(cmdbuf, ")");
}
- return (cmdbuf);
-
-bad:
- seterr("error locating command name for pid %d from %s",
- p->p_pid, file);
-retucomm:
- (void) strcpy(cmdbuf, " (");
- (void) strncat(cmdbuf, p->p_comm, sizeof (p->p_comm));
- (void) strcat(cmdbuf, ")");
+#if 0
+ if (argc && argc != (char *)-1)
+ munmap(argc, arg_size);
+ if (mmfd && mmfd != -1)
+ close (mmfd);
+#endif
return (cmdbuf);
}
@@ -1040,47 +801,6 @@ getkvars()
/* We must do the sys map first because klseek uses it */
long addr;
-#ifndef NEWVM
- Syssize = nl[X_SYSSIZE].n_value;
- Sysmap = (struct pte *)
- calloc((unsigned) Syssize, sizeof (struct pte));
- if (Sysmap == NULL) {
- seterr("out of space for Sysmap");
- return (-1);
- }
- addr = (long) nl[X_SYSMAP].n_value;
- addr &= ~KERNBASE;
- (void) lseek(kmem, addr, 0);
- if (read(kmem, (char *) Sysmap, Syssize * sizeof (struct pte))
- != Syssize * sizeof (struct pte)) {
- seterr("can't read Sysmap");
- return (-1);
- }
-#endif
-#if defined(hp300)
- addr = (long) nl[X_LOWRAM].n_value;
- (void) lseek(kmem, addr, 0);
- if (read(kmem, (char *) &lowram, sizeof (lowram))
- != sizeof (lowram)) {
- seterr("can't read lowram");
- return (-1);
- }
- lowram = btop(lowram);
- Sysseg = (struct ste *) malloc(NBPG);
- if (Sysseg == NULL) {
- seterr("out of space for Sysseg");
- return (-1);
- }
- addr = (long) nl[X_SYSSEG].n_value;
- (void) lseek(kmem, addr, 0);
- read(kmem, (char *)&addr, sizeof(addr));
- (void) lseek(kmem, (long)addr, 0);
- if (read(kmem, (char *) Sysseg, NBPG) != NBPG) {
- seterr("can't read Sysseg");
- return (-1);
- }
-#endif
-#if defined(i386)
PTD = (struct pde *) malloc(NBPG);
if (PTD == NULL) {
seterr("out of space for PTD");
@@ -1094,12 +814,7 @@ getkvars()
seterr("can't read PTD");
return (-1);
}
-#endif
}
-#ifndef NEWVM
- usrpt = (struct pte *)nl[X_USRPT].n_value;
- Usrptmap = (struct pte *)nl[X_USRPTMAP].n_value;
-#endif
if (kvm_read((void *) nl[X_NSWAP].n_value, &nswap, sizeof (long)) !=
sizeof (long)) {
seterr("can't read nswap");
@@ -1154,68 +869,11 @@ klseek(fd, loc, off)
(void) lseek(fd, (off_t)loc, off);
}
-#ifndef NEWVM
-/*
- * Given a base/size pair in virtual swap area,
- * return a physical base/size pair which is the
- * (largest) initial, physically contiguous block.
- */
-static void
-vstodb(vsbase, vssize, dmp, dbp, rev)
- register int vsbase;
- int vssize;
- struct dmap *dmp;
- register struct dblock *dbp;
-{
- register int blk = dmmin;
- register swblk_t *ip = dmp->dm_map;
-
- vsbase = ctod(vsbase);
- vssize = ctod(vssize);
- if (vsbase < 0 || vsbase + vssize > dmp->dm_size)
- /*panic("vstodb")*/;
- while (vsbase >= blk) {
- vsbase -= blk;
- if (blk < dmmax)
- blk *= 2;
- ip++;
- }
- if (*ip <= 0 || *ip + blk > nswap)
- /*panic("vstodb")*/;
- dbp->db_size = MIN(vssize, blk - vsbase);
- dbp->db_base = *ip + (rev ? blk - (vsbase + dbp->db_size) : vsbase);
-}
-#endif
-
-#ifdef NEWVM
static off_t
Vtophys(loc)
u_long loc;
{
off_t newloc = (off_t) -1;
-#ifdef hp300
- int p, ste, pte;
-
- ste = *(int *)&Sysseg[loc >> SG_ISHIFT];
- if ((ste & SG_V) == 0) {
- seterr("vtophys: segment not valid");
- return((off_t) -1);
- }
- p = btop(loc & SG_PMASK);
- newloc = (ste & SG_FRAME) + (p * sizeof(struct pte));
- (void) lseek(kmem, (long)(newloc-(off_t)ptob(lowram)), 0);
- if (read(kmem, (char *)&pte, sizeof pte) != sizeof pte) {
- seterr("vtophys: cannot locate pte");
- return((off_t) -1);
- }
- newloc = pte & PG_FRAME;
- if (pte == PG_NV || newloc < (off_t)ptob(lowram)) {
- seterr("vtophys: page not valid");
- return((off_t) -1);
- }
- newloc = (newloc - (off_t)ptob(lowram)) + (loc & PGOFSET);
-#endif
-#ifdef i386
struct pde pde;
struct pte pte;
int p;
@@ -1238,168 +896,17 @@ Vtophys(loc)
return((off_t) -1);
}
newloc += (loc & PGOFSET);
-#endif
return((off_t) newloc);
}
-#else
-static off_t
-vtophys(loc)
- long loc;
-{
- int p;
- off_t newloc;
- register struct pte *pte;
-
- newloc = loc & ~KERNBASE;
- p = btop(newloc);
-#if defined(vax) || defined(tahoe)
- if ((loc & KERNBASE) == 0) {
- seterr("vtophys: translating non-kernel address");
- return((off_t) -1);
- }
-#endif
- if (p >= Syssize) {
- seterr("vtophys: page out of bound (%d>=%d)", p, Syssize);
- return((off_t) -1);
- }
- pte = &Sysmap[p];
- if (pte->pg_v == 0 && (pte->pg_fod || pte->pg_pfnum == 0)) {
- seterr("vtophys: page not valid");
- return((off_t) -1);
- }
-#if defined(hp300)
- if (pte->pg_pfnum < lowram) {
- seterr("vtophys: non-RAM page (%d<%d)", pte->pg_pfnum, lowram);
- return((off_t) -1);
- }
-#endif
- loc = (long) (ptob(pftoc(pte->pg_pfnum)) + (loc & PGOFSET));
- return(loc);
-}
-#endif
-
-#ifdef NEWVM
/*
* locate address of unwired or swapped page
*/
-#define DEBUG 0
#define KREAD(off, addr, len) \
(kvm_read((void *)(off), (char *)(addr), (len)) == (len))
-
-static int
-vatosw(p, vaddr, maddr, swb)
-struct proc *p ;
-vm_offset_t vaddr;
-vm_offset_t *maddr;
-struct swapblk *swb;
-{
- register struct kinfo_proc *kp = (struct kinfo_proc *)p;
- vm_map_t mp = &kp->kp_eproc.e_vm.vm_map;
- struct vm_object vm_object;
- struct vm_map_entry vm_entry;
- struct pager_struct pager;
- struct swpager swpager;
- struct swblock swblock;
- long addr, off;
- int i;
-
- if (p->p_pid == 0 || p->p_pid == 2)
- return 0;
-
- addr = (long)mp->header.next;
- for (i = 0; i < mp->nentries; i++) {
- /* Weed through map entries until vaddr in range */
- if (!KREAD(addr, &vm_entry, sizeof(vm_entry))) {
- setsyserr("vatosw: read vm_map_entry");
- return 0;
- }
- if ((vaddr >= vm_entry.start) && (vaddr <= vm_entry.end) &&
- (vm_entry.object.vm_object != 0))
- break;
-
- addr = (long)vm_entry.next;
- }
- if (i == mp->nentries) {
- seterr("%u: map not found\n", p->p_pid);
- return 0;
- }
-
- if (vm_entry.is_a_map || vm_entry.is_sub_map) {
- seterr("%u: Is a map\n", p->p_pid);
- return 0;
- }
-
- /* Locate memory object */
- off = (vaddr - vm_entry.start) + vm_entry.offset;
- addr = (long)vm_entry.object.vm_object;
- while (1) {
- if (!KREAD(addr, &vm_object, sizeof vm_object)) {
- setsyserr("vatosw: read vm_object");
- return 0;
- }
-
-#if DEBUG
- fprintf(stderr, "%u: find page: object %#x offset %x\n",
- p->p_pid, addr, off);
-#endif
-
- /* Lookup in page queue */
- if (findpage(addr, off, maddr))
- return 1;
-
- if (vm_object.shadow == 0)
- break;
-
-#if DEBUG
- fprintf(stderr, "%u: shadow obj at %x: offset %x+%x\n",
- p->p_pid, addr, off, vm_object.shadow_offset);
-#endif
-
- addr = (long)vm_object.shadow;
- off += vm_object.shadow_offset;
- }
-
- if (!vm_object.pager) {
- seterr("%u: no pager\n", p->p_pid);
- return 0;
- }
-
- /* Find address in swap space */
- if (!KREAD(vm_object.pager, &pager, sizeof pager)) {
- setsyserr("vatosw: read pager");
- return 0;
- }
- if (pager.pg_type != PG_SWAP) {
- seterr("%u: weird pager\n", p->p_pid);
- return 0;
- }
-
- /* Get swap pager data */
- if (!KREAD(pager.pg_data, &swpager, sizeof swpager)) {
- setsyserr("vatosw: read swpager");
- return 0;
- }
-
- off += vm_object.paging_offset;
-
- /* Read swap block array */
- if (!KREAD((long)swpager.sw_blocks +
- (off/dbtob(swpager.sw_bsize)) * sizeof swblock,
- &swblock, sizeof swblock)) {
- setsyserr("vatosw: read swblock");
- return 0;
- }
- swb->offset = dbtob(swblock.swb_block)+ (off % dbtob(swpager.sw_bsize));
- swb->size = dbtob(swpager.sw_bsize) - (off % dbtob(swpager.sw_bsize));
- return 1;
-}
-
-
-#define atop(x) (((unsigned)(x)) >> page_shift)
#define vm_page_hash(object, offset) \
(((unsigned)object+(unsigned)atop(offset))&vm_page_hash_mask)
@@ -1452,7 +959,6 @@ static long page_shift;
}
return 0;
}
-#endif /* NEWVM */
#include <varargs.h>
static char errbuf[_POSIX2_LINE_MAX];
@@ -1487,6 +993,9 @@ setsyserr(va_alist)
for (cp=errbuf; *cp; cp++)
;
snprintf(cp, _POSIX2_LINE_MAX - (cp - errbuf), ": %s", strerror(errno));
+#if DEBUG
+ (void) fprintf(stderr, "%s\n", errbuf);
+#endif
va_end(ap);
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-03 13:27:07 +0000