125 lines
4.1 KiB
C
125 lines
4.1 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-4-Clause
|
|
*
|
|
* Copyright (c) 1992, 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*
|
|
* @(#)profile.h 8.1 (Berkeley) 6/11/93
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_PROFILE_H_
|
|
#define _MACHINE_PROFILE_H_
|
|
|
|
/*
|
|
* Config generates something to tell the compiler to align functions on 32
|
|
* byte boundaries. A strict alignment is good for keeping the tables small.
|
|
*/
|
|
#define FUNCTION_ALIGNMENT 16
|
|
|
|
#define _MCOUNT_DECL void mcount
|
|
|
|
typedef u_long fptrdiff_t;
|
|
|
|
/*
|
|
* Cannot implement mcount in C as GCC will trash the ip register when it
|
|
* pushes a trapframe. Pity we cannot insert assembly before the function
|
|
* prologue.
|
|
*/
|
|
|
|
#ifndef PLTSYM
|
|
#define PLTSYM
|
|
#endif
|
|
|
|
#define MCOUNT \
|
|
__asm__(".text"); \
|
|
__asm__(".align 2"); \
|
|
__asm__(".type __mcount ,%function"); \
|
|
__asm__(".global __mcount"); \
|
|
__asm__("__mcount:"); \
|
|
/* \
|
|
* Preserve registers that are trashed during mcount \
|
|
*/ \
|
|
__asm__("stmfd sp!, {r0-r3, ip, lr}"); \
|
|
/* \
|
|
* find the return address for mcount, \
|
|
* and the return address for mcount's caller. \
|
|
* \
|
|
* frompcindex = pc pushed by call into self. \
|
|
*/ \
|
|
__asm__("mov r0, ip"); \
|
|
/* \
|
|
* selfpc = pc pushed by mcount call \
|
|
*/ \
|
|
__asm__("mov r1, lr"); \
|
|
/* \
|
|
* Call the real mcount code \
|
|
*/ \
|
|
__asm__("bl mcount"); \
|
|
/* \
|
|
* Restore registers that were trashed during mcount \
|
|
*/ \
|
|
__asm__("ldmfd sp!, {r0-r3, lr}"); \
|
|
/* \
|
|
* Return to the caller. Loading lr and pc in one instruction \
|
|
* is deprecated on ARMv7 so we need this on its own. \
|
|
*/ \
|
|
__asm__("ldmfd sp!, {pc}");
|
|
void bintr(void);
|
|
void btrap(void);
|
|
void eintr(void);
|
|
void user(void);
|
|
|
|
#define MCOUNT_FROMPC_USER(pc) \
|
|
((pc < (uintfptr_t)VM_MAXUSER_ADDRESS) ? (uintfptr_t)user : pc)
|
|
|
|
#define MCOUNT_FROMPC_INTR(pc) \
|
|
((pc >= (uintfptr_t)btrap && pc < (uintfptr_t)eintr) ? \
|
|
((pc >= (uintfptr_t)bintr) ? (uintfptr_t)bintr : \
|
|
(uintfptr_t)btrap) : ~0U)
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#define MCOUNT_DECL(s) register_t s;
|
|
|
|
#include <machine/asm.h>
|
|
#include <machine/cpufunc.h>
|
|
#define MCOUNT_ENTER(s) {s = intr_disable(); } /* kill IRQ */
|
|
#define MCOUNT_EXIT(s) {intr_restore(s); } /* restore old value */
|
|
|
|
void mcount(uintfptr_t frompc, uintfptr_t selfpc);
|
|
|
|
#else
|
|
typedef u_int uintfptr_t;
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* !_MACHINE_PROFILE_H_ */
|