freebsd-dev/lib/libkvm/kvm.h
Brooks Davis f38b68ae8a Make struct xinpcb and friends word-size independent.
Replace size_t members with ksize_t (uint64_t) and pointer members
(never used as pointers in userspace, but instead as unique
idenitifiers) with kvaddr_t (uint64_t). This makes the structs
identical between 32-bit and 64-bit ABIs.

On 64-bit bit systems, the ABI is maintained. On 32-bit systems,
this is an ABI breaking change. The ABI of most of these structs
was previously broken in r315662.  This also imposes a small API
change on userspace consumers who must handle kernel pointers
becoming virtual addresses.

PR:		228301 (exp-run by antoine)
Reviewed by:	jtl, kib, rwatson (various versions)
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D15386
2018-07-05 13:13:48 +00:00

133 lines
4.1 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1989, 1993
* The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)kvm.h 8.1 (Berkeley) 6/2/93
* $FreeBSD$
*/
#ifndef _KVM_H_
#define _KVM_H_
#include <sys/cdefs.h>
#include <sys/types.h>
#include <nlist.h>
/*
* Including vm/vm.h causes namespace pollution issues. For the
* most part, only things using kvm_walk_pages() need to #include it.
*/
#ifndef VM_H
typedef u_char vm_prot_t;
#endif
/* Default version symbol. */
#define VRS_SYM "_version"
#define VRS_KEY "VERSION"
#ifndef _SIZE_T_DECLARED
typedef __size_t size_t;
#define _SIZE_T_DECLARED
#endif
#ifndef _SSIZE_T_DECLARED
typedef __ssize_t ssize_t;
#define _SSIZE_T_DECLARED
#endif
struct kvm_nlist {
const char *n_name;
unsigned char n_type;
kvaddr_t n_value;
};
typedef struct __kvm kvm_t;
struct kinfo_proc;
struct proc;
struct kvm_swap {
char ksw_devname[32];
u_int ksw_used;
u_int ksw_total;
int ksw_flags;
u_int ksw_reserved1;
u_int ksw_reserved2;
};
struct kvm_page {
unsigned int version;
u_long paddr;
u_long kmap_vaddr;
u_long dmap_vaddr;
vm_prot_t prot;
u_long offset;
size_t len;
/* end of version 1 */
};
#define SWIF_DEV_PREFIX 0x0002
#define LIBKVM_WALK_PAGES_VERSION 1
__BEGIN_DECLS
int kvm_close(kvm_t *);
int kvm_dpcpu_setcpu(kvm_t *, unsigned int);
char **kvm_getargv(kvm_t *, const struct kinfo_proc *, int);
int kvm_getcptime(kvm_t *, long *);
char **kvm_getenvv(kvm_t *, const struct kinfo_proc *, int);
char *kvm_geterr(kvm_t *);
int kvm_getloadavg(kvm_t *, double [], int);
int kvm_getmaxcpu(kvm_t *);
int kvm_getncpus(kvm_t *);
void *kvm_getpcpu(kvm_t *, int);
uint64_t kvm_counter_u64_fetch(kvm_t *, u_long);
struct kinfo_proc *
kvm_getprocs(kvm_t *, int, int, int *);
int kvm_getswapinfo(kvm_t *, struct kvm_swap *, int, int);
int kvm_native(kvm_t *);
int kvm_nlist(kvm_t *, struct nlist *);
int kvm_nlist2(kvm_t *, struct kvm_nlist *);
kvm_t *kvm_open
(const char *, const char *, const char *, int, const char *);
kvm_t *kvm_openfiles
(const char *, const char *, const char *, int, char *);
kvm_t *kvm_open2
(const char *, const char *, int, char *,
int (*)(const char *, kvaddr_t *));
ssize_t kvm_read(kvm_t *, unsigned long, void *, size_t);
ssize_t kvm_read_zpcpu(kvm_t *, unsigned long, void *, size_t, int);
ssize_t kvm_read2(kvm_t *, kvaddr_t, void *, size_t);
ssize_t kvm_write(kvm_t *, unsigned long, const void *, size_t);
typedef int kvm_walk_pages_cb_t(struct kvm_page *, void *);
int kvm_walk_pages(kvm_t *, kvm_walk_pages_cb_t *, void *);
__END_DECLS
#endif /* !_KVM_H_ */