/*
* Copyright 1997
* Digital Equipment Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and conditions.
* Subject to these conditions, you may download, copy, install,
* use, modify and distribute this software in source and/or binary
* form. No title or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions as
* they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or logo of
* Digital Equipment Corporation. Neither the "Digital Equipment
* Corporation" name nor any trademark or logo of Digital Equipment
* Corporation may be used to endorse or promote products derived
* from this software without the prior written permission of
* Digital Equipment Corporation.
*
* 3) This software is provided "AS-IS" and any express or implied
* warranties, including but not limited to, any implied warranties
* of merchantability, fitness for a particular purpose, or
* non-infringement are disclaimed. In no event shall DIGITAL be
* liable for any damages whatsoever, and in particular, DIGITAL
* shall not be liable for special, indirect, consequential, or
* incidental damages or damages for lost profits, loss of
* revenue or loss of use, whether such damages arise in contract,
* negligence, tort, under statute, in equity, at law or otherwise,
* even if advised of the possibility of such damage.
*/
/*
* Remote profiler structures used to communicate between the
* target (SHARK) and the host (GUI'd) machine.
* Also has stuff used to talk between the profiling driver and
* profiling server function.
*
*/
#ifndef __PROFILE_IO_H__
#define __PROFILE_IO_H__
#include <sys/types.h>
#include <sys/ioccom.h>
/* I have no idea what the 'P' group id means,
* I presume it isn't used for much.??
*/
#define PROFIOSTART _IOWR('P', 0, struct profStartInfo) /* start profiling */
#define PROFIOSTOP _IO('P', 1) /* stop profiling */
/* an actual entry
*/
struct profHashEntry
{
unsigned int pc; /* the pc, minus any redundant bits. */
unsigned int next; /* the next pointer as an entry index */
unsigned short counts[4]; /* the counts */
};
/* table header.
*/
struct profHashHeader
{
unsigned int tableSize; /* total table size in entries */
unsigned int entries; /* first level table size, in entries */
unsigned int samples; /* the number of samples in the table. */
unsigned int missed; /* the number of samples missed. */
unsigned int fiqs; /* the number of fiqs. */
unsigned int last; /* last entry in the overflow area */
pid_t pid; /* The pid being sampled */
int mode; /* kernel or user mode */
}
__attribute__ ((packed));
/* information passed to the start/stop ioctl.
*/
struct profStartInfo
{
pid_t pid; /* if this is -1 sample no processes */
unsigned int tableSize; /* the total table size in entries */
unsigned int entries; /* number of entries to hash */
unsigned int mode; /* if set profile the kernel */
int status; /* status of command returned by driver. */
};
/* Communications Protocol stuff
* defines the messages that the host and
* target will use to communicate.
*/
struct packetHeader
{
int code; /* this will either be a command or a
* data specifier.
*/
unsigned int size; /* size of data to follow,
* quantity depends on code.
*/
}
__attribute__ ((packed));
struct startSamplingCommand
{
pid_t pid; /* the pid to sample */
unsigned int tableSize; /* the total table size in entries */
unsigned int entries; /* number of entries to hash */
unsigned int mode; /* if set profile kernel also. */
}
__attribute__ ((packed));
struct startSamplingResponse
{
int status; /* identifies the status of the command. */
int count; /* number of shared lib entries following. */
}
__attribute__ ((packed));
struct stopSamplingCommand
{
int alert; /* if set then the daemon sends a SIGINT to
* the process.
*/
}
__attribute__ ((packed));
struct disassemble
{
unsigned int offset; /* offset into file to begin disassembling */
unsigned int length; /* length in arm words ie 32bits. */
}
__attribute__ ((packed));
struct profStatus
{
unsigned int status; /* identifies the status. */
}
__attribute__ ((packed));
/* Command/Data Types
* Only one bit may be set for any one command.
* so these are not masks but distinct values.
*/
#define START_SAMPLING 0x01
#define STOP_SAMPLING 0x02
#define READ_TABLE 0x03
#define DISASSEMBLY 0x04
#define SYMBOL_INFO 0x05
#define PROCESS_INFO 0x06
