/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* Copyright (c) 2000 PocketPenguins Inc. Linux for Hitachi SuperH
* port by Greg Banks <gbanks@pocketpenguins.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#include <asm/mman.h>
#include <sys/mman.h>
unsigned long
get_pagesize(void)
{
static unsigned long pagesize;
if (!pagesize)
pagesize = sysconf(_SC_PAGESIZE);
return pagesize;
}
SYS_FUNC(brk)
{
printaddr(tcp->u_arg[0]);
return RVAL_DECODED | RVAL_HEX;
}
#include "xlat/mmap_prot.h"
#include "xlat/mmap_flags.h"
static void
print_mmap(struct tcb *tcp, long *u_arg, unsigned long long offset)
{
/* addr */
printaddr(u_arg[0]);
/* len */
tprintf(", %lu, ", u_arg[1]);
/* prot */
printflags(mmap_prot, u_arg[2], "PROT_???");
tprints(", ");
/* flags */
#ifdef MAP_TYPE
printxval(mmap_flags, u_arg[3] & MAP_TYPE, "MAP_???");
addflags(mmap_flags, u_arg[3] & ~MAP_TYPE);
#else
printflags(mmap_flags, u_arg[3], "MAP_???");
#endif
tprints(", ");
/* fd */
printfd(tcp, u_arg[4]);
/* offset */
tprintf(", %#llx", offset);
}
/* Syscall name<->function correspondence is messed up on many arches.
* For example:
* i386 has __NR_mmap == 90, and it is "old mmap", and
* also it has __NR_mmap2 == 192, which is a "new mmap with page offsets".
* But x86_64 has just one __NR_mmap == 9, a "new mmap with byte offsets".
* Confused? Me too!
*/
/* Params are pointed to by u_arg[0], offset is in bytes */
SYS_FUNC(old_mmap)
{
long u_arg[6];
#if defined(IA64)
/*
* IA64 processes never call this routine, they only use the
* new 'sys_mmap' interface. Only IA32 processes come here.
*/
int i;
unsigned narrow_arg[6];
if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), narrow_arg) == -1)
return 0;
for (i = 0; i < 6; i++)
u_arg[i] = (unsigned long) narrow_arg[i];
#elif defined(X86_64)
/* We are here only in personality 1 (i386) */
int i;
unsigned narrow_arg[6];
if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), narrow_arg) == -1)
return 0;
for (i = 0; i < 6; ++i)
u_arg[i] = (unsigned long) narrow_arg[i];
#else
if (umoven(tcp, tcp->u_arg[0], sizeof(u_arg), u_arg) == -1)
return 0;
#endif
print_mmap(tcp, u_arg, (unsigned long) u_arg[5]);
return RVAL_DECODED | RVAL_HEX;
}
#if defined(S390)
/* Params are pointed to by u_arg[0], offset is in pages */
SYS_FUNC(old_mmap_pgoff)
{
long u_arg[5];
int i;
unsigned narrow_arg[6];
unsigned long long offset;
if (umoven(tcp, tcp->u_arg[0], sizeof(narrow_arg), narrow_arg) == -1)
return 0;
for (i = 0; i < 5; i++)
u_arg[i] = (unsigned long) narrow_arg[i];
offset = narrow_arg[5];
offset *= get_pagesize();
print_mmap(tcp, u_arg, offset);
return RVAL_DECODED | RVAL_HEX;
}
#endif
/* Params are passed directly, offset is in bytes */
SYS_FUNC(mmap)
{
unsigned long long offset = (unsigned long) tcp->u_arg[5];
#if defined(LINUX_MIPSN32) || defined(X32)
/* Try test/x32_mmap.c */
offset = tcp->ext_arg[5];
#endif
/* Example of kernel-side handling of this variety of mmap:
* arch/x86/kernel/sys_x86_64.c::SYSCALL_DEFINE6(mmap, ...) calls
* sys_mmap_pgoff(..., off >> PAGE_SHIFT); i.e. off is in bytes,
* since the above code converts off to pages.
*/
print_mmap(tcp, tcp->u_arg, offset);
return RVAL_DECODED | RVAL_HEX;
}
/* Params are passed directly, offset is in pages */
SYS_FUNC(mmap_pgoff)
{
/* Try test/mmap_offset_decode.c */
unsigned long long offset;
offset = (unsigned long) tcp->u_arg[5];
offset *= get_pagesize();
print_mmap(tcp, tcp->u_arg, offset);
return RVAL_DECODED | RVAL_HEX;
}
/* Params are passed directly, offset is in 4k units */
SYS_FUNC(mmap_4koff)
{
unsigned long long offset;
offset = (unsigned long) tcp->u_arg[5];
offset <<= 12;
print_mmap(tcp, tcp->u_arg, offset);
return RVAL_DECODED | RVAL_HEX;
}
SYS_FUNC(munmap)
{
printaddr(tcp->u_arg[0]);
tprintf(", %lu", tcp->u_arg[1]);
return RVAL_DECODED;
}
SYS_FUNC(mprotect)
{
printaddr(tcp->u_arg[0]);
tprintf(", %lu, ", tcp->u_arg[1]);
printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
return RVAL_DECODED;
}
#include "xlat/mremap_flags.h"
SYS_FUNC(mremap)
{
printaddr(tcp->u_arg[0]);
tprintf(", %lu, %lu, ", tcp->u_arg[1], tcp->u_arg[2]);
printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
#ifdef MREMAP_FIXED
if ((tcp->u_arg[3] & (MREMAP_MAYMOVE | MREMAP_FIXED)) ==
(MREMAP_MAYMOVE | MREMAP_FIXED)) {
tprints(", ");
printaddr(tcp->u_arg[4]);
}
#endif
return RVAL_DECODED | RVAL_HEX;
}
#include "xlat/madvise_cmds.h"
SYS_FUNC(madvise)
{
printaddr(tcp->u_arg[0]);
tprintf(", %lu, ", tcp->u_arg[1]);
printxval(madvise_cmds, tcp->u_arg[2], "MADV_???");
return RVAL_DECODED;
}
#include "xlat/mlockall_flags.h"
SYS_FUNC(mlockall)
{
printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
return RVAL_DECODED;
}
#include "xlat/mctl_sync.h"
SYS_FUNC(msync)
{
/* addr */
printaddr(tcp->u_arg[0]);
/* len */
tprintf(", %lu, ", tcp->u_arg[1]);
/* flags */
printflags(mctl_sync, tcp->u_arg[2], "MS_???");
return RVAL_DECODED;
}
#include "xlat/mlock_flags.h"
SYS_FUNC(mlock2)
{
printaddr(tcp->u_arg[0]);
tprintf(", %lu, ", tcp->u_arg[1]);
printflags(mlock_flags, tcp->u_arg[2], "MLOCK_???");
return RVAL_DECODED;
}
SYS_FUNC(mincore)
{
if (entering(tcp)) {
printaddr(tcp->u_arg[0]);
tprintf(", %lu, ", tcp->u_arg[1]);
} else {
unsigned long i, len;
char *vec = NULL;
len = tcp->u_arg[1];
if (syserror(tcp) || !verbose(tcp) ||
!tcp->u_arg[2] || !(vec = malloc(len)) ||
umoven(tcp, tcp->u_arg[2], len, vec) < 0)
printaddr(tcp->u_arg[2]);
else {
tprints("[");
for (i = 0; i < len; i++) {
if (abbrev(tcp) && i >= max_strlen) {
tprints("...");
break;
}
tprints((vec[i] & 1) ? "1" : "0");
}
tprints("]");
}
free(vec);
}
return 0;
}
#if defined ALPHA || defined IA64 || defined M68K \
|| defined SPARC || defined SPARC64
SYS_FUNC(getpagesize)
{
if (exiting(tcp))
return RVAL_HEX;
return 0;
}
#endif
SYS_FUNC(remap_file_pages)
{
printaddr(tcp->u_arg[0]);
tprintf(", %lu, ", tcp->u_arg[1]);
printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
tprintf(", %lu, ", tcp->u_arg[3]);
#ifdef MAP_TYPE
printxval(mmap_flags, tcp->u_arg[4] & MAP_TYPE, "MAP_???");
addflags(mmap_flags, tcp->u_arg[4] & ~MAP_TYPE);
#else
printflags(mmap_flags, tcp->u_arg[4], "MAP_???");
#endif
return RVAL_DECODED;
}
#define MPOL_DEFAULT 0
#define MPOL_PREFERRED 1
#define MPOL_BIND 2
#define MPOL_INTERLEAVE 3
#define MPOL_F_NODE (1<<0)
#define MPOL_F_ADDR (1<<1)
#define MPOL_MF_STRICT (1<<0)
#define MPOL_MF_MOVE (1<<1)
#define MPOL_MF_MOVE_ALL (1<<2)
#include "xlat/policies.h"
#include "xlat/mbindflags.h"
#include "xlat/mempolicyflags.h"
#include "xlat/move_pages_flags.h"
static void
get_nodes(struct tcb *tcp, unsigned long ptr, unsigned long maxnodes, int err)
{
unsigned long nlongs, size, end;
nlongs = (maxnodes + 8 * sizeof(long) - 1) / (8 * sizeof(long));
size = nlongs * sizeof(long);
end = ptr + size;
if (nlongs == 0 || ((err || verbose(tcp)) && (size * 8 == maxnodes)
&& (end > ptr))) {
unsigned long n, cur, abbrev_end;
int failed = 0;
if (abbrev(tcp)) {
abbrev_end = ptr + max_strlen * sizeof(long);
if (abbrev_end < ptr)
abbrev_end = end;
} else {
abbrev_end = end;
}
tprints(", {");
for (cur = ptr; cur < end; cur += sizeof(long)) {
if (cur > ptr)
tprints(", ");
if (cur >= abbrev_end) {
tprints("...");
break;
}
if (umoven(tcp, cur, sizeof(n), &n) < 0) {
tprints("?");
failed = 1;
break;
}
tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
}
tprints("}");
if (failed) {
tprints(" ");
printaddr(ptr);
}
} else {
tprints(" ");
printaddr(ptr);
}
tprintf(", %lu", maxnodes);
}
SYS_FUNC(mbind)
{
printaddr(tcp->u_arg[0]);
tprintf(", %lu, ", tcp->u_arg[1]);
printxval(policies, tcp->u_arg[2], "MPOL_???");
get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
tprints(", ");
printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
return RVAL_DECODED;
}
SYS_FUNC(set_mempolicy)
{
printxval(policies, tcp->u_arg[0], "MPOL_???");
get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
return RVAL_DECODED;
}
SYS_FUNC(get_mempolicy)
{
if (exiting(tcp)) {
int pol;
if (!umove_or_printaddr(tcp, tcp->u_arg[0], &pol))
printxval(policies, pol, "MPOL_???");
get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
tprints(", ");
printaddr(tcp->u_arg[3]);
tprints(", ");
printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
}
return 0;
}
SYS_FUNC(migrate_pages)
{
tprintf("%ld, ", (long) (pid_t) tcp->u_arg[0]);
get_nodes(tcp, tcp->u_arg[2], tcp->u_arg[1], 0);
tprints(", ");
get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[1], 0);
return RVAL_DECODED;
}
SYS_FUNC(move_pages)
{
if (entering(tcp)) {
unsigned long npages = tcp->u_arg[1];
tprintf("%ld, %lu, ", tcp->u_arg[0], npages);
if (tcp->u_arg[2] == 0)
tprints("NULL, ");
else {
unsigned int i;
long puser = tcp->u_arg[2];
tprints("{");
for (i = 0; i < npages; ++i) {
void *p;
if (i > 0)
tprints(", ");
if (umove(tcp, puser, &p) < 0) {
tprints("???");
break;
}
tprintf("%p", p);
puser += sizeof(void *);
}
tprints("}, ");
}
if (tcp->u_arg[3] == 0)
tprints("NULL, ");
else {
unsigned int i;
long nodeuser = tcp->u_arg[3];
tprints("{");
for (i = 0; i < npages; ++i) {
int node;
if (i > 0)
tprints(", ");
if (umove(tcp, nodeuser, &node) < 0) {
tprints("???");
break;
}
tprintf("%#x", node);
nodeuser += sizeof(int);
}
tprints("}, ");
}
} else {
unsigned long npages = tcp->u_arg[1];
if (tcp->u_arg[4] == 0)
tprints("NULL, ");
else {
unsigned int i;
long statususer = tcp->u_arg[4];
tprints("{");
for (i = 0; i < npages; ++i) {
int status;
if (i > 0)
tprints(", ");
if (umove(tcp, statususer, &status) < 0) {
tprints("???");
break;
}
tprintf("%#x", status);
statususer += sizeof(int);
}
tprints("}, ");
}
printflags(move_pages_flags, tcp->u_arg[5], "MPOL_???");
}
return 0;
}
#if defined(POWERPC)
SYS_FUNC(subpage_prot)
{
unsigned long cur, end, abbrev_end, entries;
unsigned int entry;
printaddr(tcp->u_arg[0]);
tprints(", ");
printaddr(tcp->u_arg[1]);
tprints(", ");
entries = tcp->u_arg[1] >> 16;
if (!entries || !tcp->u_arg[2]) {
tprints("{}");
return 0;
}
cur = tcp->u_arg[2];
end = cur + (sizeof(int) * entries);
if (!verbose(tcp) || end < (unsigned long) tcp->u_arg[2]) {
printaddr(tcp->u_arg[2]);
return 0;
}
if (abbrev(tcp)) {
abbrev_end = cur + (sizeof(int) * max_strlen);
if (abbrev_end > end)
abbrev_end = end;
}
else
abbrev_end = end;
tprints("{");
for (; cur < end; cur += sizeof(int)) {
if (cur > (unsigned long) tcp->u_arg[2])
tprints(", ");
if (cur >= abbrev_end) {
tprints("...");
break;
}
if (umove(tcp, cur, &entry) < 0) {
tprintf("??? [%#lx]", cur);
break;
}
else
tprintf("%#08x", entry);
}
tprints("}");
return RVAL_DECODED;
}
#endif