/*
* 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.
*
* $Id: mem.c,v 1.36 2005/06/01 19:22:07 roland Exp $
*/
#include "defs.h"
#ifdef LINUX
#include <asm/mman.h>
#endif
#include <sys/mman.h>
#if defined(LINUX) && defined(I386)
#include <asm/ldt.h>
# ifdef HAVE_STRUCT_USER_DESC
# define modify_ldt_ldt_s user_desc
# endif
#endif
#if defined(LINUX) && defined(SH64)
#include <asm/page.h> /* for PAGE_SHIFT */
#endif
#ifdef HAVE_LONG_LONG_OFF_T
/*
* Ugly hacks for systems that have a long long off_t
*/
#define sys_mmap64 sys_mmap
#endif
int
sys_brk(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%#lx", tcp->u_arg[0]);
}
#ifdef LINUX
return RVAL_HEX;
#else
return 0;
#endif
}
int
sys_sbrk(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%lu", tcp->u_arg[0]);
}
return RVAL_HEX;
}
static const struct xlat mmap_prot[] = {
{ PROT_NONE, "PROT_NONE", },
{ PROT_READ, "PROT_READ" },
{ PROT_WRITE, "PROT_WRITE" },
{ PROT_EXEC, "PROT_EXEC" },
#ifdef PROT_SEM
{ PROT_SEM, "PROT_SEM" },
#endif
#ifdef PROT_GROWSDOWN
{ PROT_GROWSDOWN,"PROT_GROWSDOWN"},
#endif
#ifdef PROT_GROWSUP
{ PROT_GROWSUP, "PROT_GROWSUP" },
#endif
{ 0, NULL },
};
static const struct xlat mmap_flags[] = {
{ MAP_SHARED, "MAP_SHARED" },
{ MAP_PRIVATE, "MAP_PRIVATE" },
{ MAP_FIXED, "MAP_FIXED" },
#ifdef MAP_ANONYMOUS
{ MAP_ANONYMOUS,"MAP_ANONYMOUS" },
#endif
#ifdef MAP_RENAME
{ MAP_RENAME, "MAP_RENAME" },
#endif
#ifdef MAP_NORESERVE
{ MAP_NORESERVE,"MAP_NORESERVE" },
#endif
#ifdef MAP_POPULATE
{ MAP_POPULATE, "MAP_POPULATE" },
#endif
#ifdef MAP_NONBLOCK
{ MAP_NONBLOCK, "MAP_NONBLOCK" },
#endif
/*
* XXX - this was introduced in SunOS 4.x to distinguish between
* the old pre-4.x "mmap()", which:
*
* only let you map devices with an "mmap" routine (e.g.,
* frame buffers) in;
*
* required you to specify the mapping address;
*
* returned 0 on success and -1 on failure;
*
* memory and which, and the 4.x "mmap()" which:
*
* can map plain files;
*
* can be asked to pick where to map the file;
*
* returns the address where it mapped the file on success
* and -1 on failure.
*
* It's not actually used in source code that calls "mmap()"; the
* "mmap()" routine adds it for you.
*
* It'd be nice to come up with some way of eliminating it from
* the flags, e.g. reporting calls *without* it as "old_mmap()"
* and calls with it as "mmap()".
*/
#ifdef _MAP_NEW
{ _MAP_NEW, "_MAP_NEW" },
#endif
#ifdef MAP_GROWSDOWN
{ MAP_GROWSDOWN,"MAP_GROWSDOWN" },
#endif
#ifdef MAP_DENYWRITE
{ MAP_DENYWRITE,"MAP_DENYWRITE" },
#endif
#ifdef MAP_EXECUTABLE
{ MAP_EXECUTABLE,"MAP_EXECUTABLE"},
#endif
#ifdef MAP_INHERIT
{ MAP_INHERIT,"MAP_INHERIT" },
#endif
#ifdef MAP_FILE
{ MAP_FILE,"MAP_FILE"},
#endif
#ifdef MAP_LOCKED
{ MAP_LOCKED,"MAP_LOCKED"},
#endif
/* FreeBSD ones */
#ifdef MAP_ANON
{ MAP_ANON, "MAP_ANON" },
#endif
#ifdef MAP_HASSEMAPHORE
{ MAP_HASSEMAPHORE, "MAP_HASSEMAPHORE" },
#endif
#ifdef MAP_STACK
{ MAP_STACK, "MAP_STACK" },
#endif
#ifdef MAP_NOSYNC
{ MAP_NOSYNC, "MAP_NOSYNC" },
#endif
#ifdef MAP_NOCORE
{ MAP_NOCORE, "MAP_NOCORE" },
#endif
{ 0, NULL },
};
#if !HAVE_LONG_LONG_OFF_T
static
int
print_mmap(tcp,u_arg)
struct tcb *tcp;
long *u_arg;
{
if (entering(tcp)) {
/* addr */
if (!u_arg[0])
tprintf("NULL, ");
else
tprintf("%#lx, ", u_arg[0]);
/* len */
tprintf("%lu, ", u_arg[1]);
/* prot */
printflags(mmap_prot, u_arg[2], "PROT_???");
tprintf(", ");
/* 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
/* fd (is always int, not long) */
tprintf(", %d, ", (int)u_arg[4]);
/* offset */
tprintf("%#lx", u_arg[5]);
}
return RVAL_HEX;
}
#ifdef LINUX
int sys_old_mmap(tcp)
struct tcb *tcp;
{
long u_arg[6];
#if defined(IA64)
int i, v;
/*
* IA64 processes never call this routine, they only use the
* new `sys_mmap' interface. This code converts the integer
* arguments that the IA32 process pushed onto the stack into
* longs.
*
* Note that addresses with bit 31 set will be sign extended.
* Fortunately, those addresses are not currently being generated
* for IA32 processes so it's not a problem.
*/
for (i = 0; i < 6; i++)
if (umove(tcp, tcp->u_arg[0] + (i * sizeof(int)), &v) == -1)
return 0;
else
u_arg[i] = v;
#elif defined(SH) || defined(SH64)
/* SH has always passed the args in registers */
int i;
for (i=0; i<6; i++)
u_arg[i] = tcp->u_arg[i];
#else
if (umoven(tcp, tcp->u_arg[0], sizeof u_arg, (char *) u_arg) == -1)
return 0;
#endif // defined(IA64)
return print_mmap(tcp, u_arg);
}
#endif
int
sys_mmap(tcp)
struct tcb *tcp;
{
#if defined(LINUX) && defined(SH64)
/*
* Old mmap differs from new mmap in specifying the
* offset in units of bytes rather than pages. We
* pretend it's in byte units so the user only ever
* sees bytes in the printout.
*/
tcp->u_arg[5] <<= PAGE_SHIFT;
#endif
return print_mmap(tcp, tcp->u_arg);
}
#endif /* !HAVE_LONG_LONG_OFF_T */
#if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
int
sys_mmap64(tcp)
struct tcb *tcp;
{
#ifdef linux
#ifdef ALPHA
long *u_arg = tcp->u_arg;
#else /* !ALPHA */
long u_arg[7];
#endif /* !ALPHA */
#else /* !linux */
long *u_arg = tcp->u_arg;
#endif /* !linux */
if (entering(tcp)) {
#ifdef linux
#ifndef ALPHA
if (umoven(tcp, tcp->u_arg[0], sizeof u_arg,
(char *) u_arg) == -1)
return 0;
#endif /* ALPHA */
#endif /* linux */
ALIGN64 (tcp, 5); /* FreeBSD wierdies */
/* addr */
tprintf("%#lx, ", u_arg[0]);
/* len */
tprintf("%lu, ", u_arg[1]);
/* prot */
printflags(mmap_prot, u_arg[2], "PROT_???");
tprintf(", ");
/* 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
/* fd */
tprintf(", %ld, ", u_arg[4]);
/* offset */
tprintf("%#llx", LONG_LONG(u_arg[5], u_arg[6]));
}
return RVAL_HEX;
}
#endif
int
sys_munmap(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%#lx, %lu",
tcp->u_arg[0], tcp->u_arg[1]);
}
return 0;
}
int
sys_mprotect(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%#lx, %lu, ",
tcp->u_arg[0], tcp->u_arg[1]);
printflags(mmap_prot, tcp->u_arg[2], "PROT_???");
}
return 0;
}
#ifdef LINUX
static const struct xlat mremap_flags[] = {
{ MREMAP_MAYMOVE, "MREMAP_MAYMOVE" },
{ 0, NULL }
};
int
sys_mremap(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%#lx, %lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1],
tcp->u_arg[2]);
printflags(mremap_flags, tcp->u_arg[3], "MREMAP_???");
}
return RVAL_HEX;
}
static const struct xlat madvise_flags[] = {
#ifdef MADV_NORMAL
{ MADV_NORMAL, "MADV_NORMAL" },
#endif
#ifdef MADZV_RANDOM
{ MADV_RANDOM, "MADV_RANDOM" },
#endif
#ifdef MADV_SEQUENTIAL
{ MADV_SEQUENTIAL, "MADV_SEQUENTIAL" },
#endif
#ifdef MADV_WILLNEED
{ MADV_WILLNEED, "MADV_WILLNEED" },
#endif
#ifdef MADV_DONTNED
{ MADV_DONTNEED, "MADV_DONTNEED" },
#endif
{ 0, NULL },
};
int
sys_madvise(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
printflags(madvise_flags, tcp->u_arg[2], "MADV_???");
}
return 0;
}
static const struct xlat mlockall_flags[] = {
#ifdef MCL_CURRENT
{ MCL_CURRENT, "MCL_CURRENT" },
#endif
#ifdef MCL_FUTURE
{ MCL_FUTURE, "MCL_FUTURE" },
#endif
{ 0, NULL}
};
int
sys_mlockall(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
printflags(mlockall_flags, tcp->u_arg[0], "MCL_???");
}
return 0;
}
#endif /* LINUX */
#ifdef MS_ASYNC
static const struct xlat mctl_sync[] = {
#ifdef MS_SYNC
{ MS_SYNC, "MS_SYNC" },
#endif
{ MS_ASYNC, "MS_ASYNC" },
{ MS_INVALIDATE,"MS_INVALIDATE" },
{ 0, NULL },
};
int
sys_msync(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
/* addr */
tprintf("%#lx", tcp->u_arg[0]);
/* len */
tprintf(", %lu, ", tcp->u_arg[1]);
/* flags */
printflags(mctl_sync, tcp->u_arg[2], "MS_???");
}
return 0;
}
#endif /* MS_ASYNC */
#ifdef MC_SYNC
static const struct xlat mctl_funcs[] = {
{ MC_LOCK, "MC_LOCK" },
{ MC_LOCKAS, "MC_LOCKAS" },
{ MC_SYNC, "MC_SYNC" },
{ MC_UNLOCK, "MC_UNLOCK" },
{ MC_UNLOCKAS, "MC_UNLOCKAS" },
{ 0, NULL },
};
static const struct xlat mctl_lockas[] = {
{ MCL_CURRENT, "MCL_CURRENT" },
{ MCL_FUTURE, "MCL_FUTURE" },
{ 0, NULL },
};
int
sys_mctl(tcp)
struct tcb *tcp;
{
int arg, function;
if (entering(tcp)) {
/* addr */
tprintf("%#lx", tcp->u_arg[0]);
/* len */
tprintf(", %lu, ", tcp->u_arg[1]);
/* function */
function = tcp->u_arg[2];
printflags(mctl_funcs, function, "MC_???");
/* arg */
arg = tcp->u_arg[3];
tprintf(", ");
switch (function) {
case MC_SYNC:
printflags(mctl_sync, arg, "MS_???");
break;
case MC_LOCKAS:
printflags(mctl_lockas, arg, "MCL_???");
break;
default:
tprintf("%#x", arg);
break;
}
}
return 0;
}
#endif /* MC_SYNC */
int
sys_mincore(tcp)
struct tcb *tcp;
{
unsigned long i, len;
char *vec = NULL;
if (entering(tcp)) {
tprintf("%#lx, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
} else {
len = tcp->u_arg[1];
if (syserror(tcp) || tcp->u_arg[2] == 0 ||
(vec = malloc(len)) == NULL ||
umoven(tcp, tcp->u_arg[2], len, vec) < 0)
tprintf("%#lx", tcp->u_arg[2]);
else {
tprintf("[");
for (i = 0; i < len; i++) {
if (abbrev(tcp) && i >= max_strlen) {
tprintf("...");
break;
}
tprintf((vec[i] & 1) ? "1" : "0");
}
tprintf("]");
}
if (vec)
free(vec);
}
return 0;
}
int
sys_getpagesize(tcp)
struct tcb *tcp;
{
if (exiting(tcp))
return RVAL_HEX;
return 0;
}
#if defined(LINUX) && defined(__i386__)
void
print_ldt_entry (ldt_entry)
struct modify_ldt_ldt_s *ldt_entry;
{
tprintf("base_addr:%#08lx, "
"limit:%d, "
"seg_32bit:%d, "
"contents:%d, "
"read_exec_only:%d, "
"limit_in_pages:%d, "
"seg_not_present:%d, "
"useable:%d}",
ldt_entry->base_addr,
ldt_entry->limit,
ldt_entry->seg_32bit,
ldt_entry->contents,
ldt_entry->read_exec_only,
ldt_entry->limit_in_pages,
ldt_entry->seg_not_present,
ldt_entry->useable);
}
int
sys_modify_ldt(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
struct modify_ldt_ldt_s copy;
tprintf("%ld", tcp->u_arg[0]);
if (tcp->u_arg[1] == 0
|| tcp->u_arg[2] != sizeof (struct modify_ldt_ldt_s)
|| umove(tcp, tcp->u_arg[1], ©) == -1)
tprintf(", %lx", tcp->u_arg[1]);
else {
tprintf(", {entry_number:%d, ", copy.entry_number);
if (!verbose(tcp))
tprintf("...}");
else {
print_ldt_entry(©);
}
}
tprintf(", %lu", tcp->u_arg[2]);
}
return 0;
}
int
sys_set_thread_area(tcp)
struct tcb *tcp;
{
struct modify_ldt_ldt_s copy;
if (entering(tcp)) {
if (umove(tcp, tcp->u_arg[0], ©) != -1) {
if (copy.entry_number == -1)
tprintf("{entry_number:%d -> ",
copy.entry_number);
else
tprintf("{entry_number:");
}
} else {
if (umove(tcp, tcp->u_arg[0], ©) != -1) {
tprintf("%d, ", copy.entry_number);
if (!verbose(tcp))
tprintf("...}");
else {
print_ldt_entry(©);
}
} else {
tprintf("%lx", tcp->u_arg[0]);
}
}
return 0;
}
int
sys_get_thread_area(tcp)
struct tcb *tcp;
{
struct modify_ldt_ldt_s copy;
if (exiting(tcp)) {
if (umove(tcp, tcp->u_arg[0], ©) != -1) {
tprintf("{entry_number:%d, ", copy.entry_number);
if (!verbose(tcp))
tprintf("...}");
else {
print_ldt_entry(©);
}
} else {
tprintf("%lx", tcp->u_arg[0]);
}
}
return 0;
}
#endif /* LINUX && __i386__ */
#if defined(LINUX)
int
sys_remap_file_pages(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%#lx, %lu, ", tcp->u_arg[0], 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 0;
}
#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)
static const struct xlat policies[] = {
{ MPOL_DEFAULT, "MPOL_DEFAULT" },
{ MPOL_PREFERRED, "MPOL_PREFERRED" },
{ MPOL_BIND, "MPOL_BIND" },
{ MPOL_INTERLEAVE, "MPOL_INTERLEAVE" },
{ 0, NULL }
};
static const struct xlat mbindflags[] = {
{ MPOL_MF_STRICT, "MPOL_MF_STRICT" },
{ 0, NULL }
};
static const struct xlat mempolicyflags[] = {
{ MPOL_F_NODE, "MPOL_F_NODE" },
{ MPOL_F_ADDR, "MPOL_F_ADDR" },
{ 0, NULL }
};
static void
get_nodes(tcp, ptr, maxnodes, err)
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;
}
tprintf(", {");
for (cur = ptr; cur < end; cur += sizeof(long)) {
if (cur > ptr)
tprintf(", ");
if (cur >= abbrev_end) {
tprintf("...");
break;
}
if (umoven(tcp, cur, sizeof(n), (char *) &n) < 0) {
tprintf("?");
failed = 1;
break;
}
tprintf("%#0*lx", (int) sizeof(long) * 2 + 2, n);
}
tprintf("}");
if (failed)
tprintf(" %#lx", ptr);
} else
tprintf(", %#lx", ptr);
tprintf(", %lu", maxnodes);
}
int
sys_mbind(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%lu, %lu, ", tcp->u_arg[0], tcp->u_arg[1]);
printxval(policies, tcp->u_arg[2], "MPOL_???");
get_nodes(tcp, tcp->u_arg[3], tcp->u_arg[4], 0);
tprintf(", ");
printflags(mbindflags, tcp->u_arg[5], "MPOL_???");
}
return 0;
}
int
sys_set_mempolicy(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
printxval(policies, tcp->u_arg[0], "MPOL_???");
get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], 0);
}
return 0;
}
int
sys_get_mempolicy(tcp)
struct tcb *tcp;
{
if (exiting(tcp)) {
int pol;
if (tcp->u_arg[0] == 0)
tprintf("NULL");
else if (syserror(tcp) || umove(tcp, tcp->u_arg[0], &pol) < 0)
tprintf("%#lx", tcp->u_arg[0]);
else
printxval(policies, pol, "MPOL_???");
get_nodes(tcp, tcp->u_arg[1], tcp->u_arg[2], syserror(tcp));
tprintf(", %#lx, ", tcp->u_arg[3]);
printflags(mempolicyflags, tcp->u_arg[4], "MPOL_???");
}
return 0;
}
#endif