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freebsd-dev/sys/sparc64/include/profile.h

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/* -> /*- for license, minor formatting changes
2005-01-07 02:29:27 +00:00
/*-
Add kernel headers needed to build libc. Some are bogus and/or just enough to compile. Mostly obtained from: netbsd
2001-11-18 17:56:46 +00:00
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* from: NetBSD: profile.h,v 1.9 1997/04/06 08:47:37 cgd Exp
* from: FreeBSD: src/sys/alpha/include/profile.h,v 1.4 1999/12/29
* $FreeBSD$
*/
#ifndef _MACHINE_PROFILE_H_
#define _MACHINE_PROFILE_H_
Add definitions for statistical and high-resolution profiling. The calling conventions for _mcount and __cyg_profile_func_enter are different, so statistical profiling kernels build and link but don't actually work. IWBNI one could tell gcc to only generate calls to the former. Define uintfptr_t properly for userland, but not for the kernel (I hope).
2002-07-30 06:14:34 +00:00
#define FUNCTION_ALIGNMENT 32
Add kernel headers needed to build libc. Some are bogus and/or just enough to compile. Mostly obtained from: netbsd
2001-11-18 17:56:46 +00:00
#define _MCOUNT_DECL void mcount
Add definitions for statistical and high-resolution profiling. The calling conventions for _mcount and __cyg_profile_func_enter are different, so statistical profiling kernels build and link but don't actually work. IWBNI one could tell gcc to only generate calls to the former. Define uintfptr_t properly for userland, but not for the kernel (I hope).
2002-07-30 06:14:34 +00:00
#define MCOUNT
Add kernel headers needed to build libc. Some are bogus and/or just enough to compile. Mostly obtained from: netbsd
2001-11-18 17:56:46 +00:00
typedef u_long fptrdiff_t;
#ifdef _KERNEL
Add definitions for statistical and high-resolution profiling. The calling conventions for _mcount and __cyg_profile_func_enter are different, so statistical profiling kernels build and link but don't actually work. IWBNI one could tell gcc to only generate calls to the former. Define uintfptr_t properly for userland, but not for the kernel (I hope).
2002-07-30 06:14:34 +00:00
#include <machine/cpufunc.h>
#define MCOUNT_DECL(s) register_t s;
#define MCOUNT_ENTER(s) s = rdpr(pil); wrpr(pil, 0, 14)
#define MCOUNT_EXIT(s) wrpr(pil, 0, s)
Move the kernel-specific logic to adjust frompc from MI to MD. For these two reasons: 1. On ia64 a function pointer does not hold the address of the first instruction of a functions implementation. It holds the address of a function descriptor. Hence the user(), btrap(), eintr() and bintr() prototypes are wrong for getting the actual code address. 2. The logic forces interrupt, trap and exception entry points to be layed-out contiguously. This can not be achieved on ia64 and is generally just bad programming. The MCOUNT_FROMPC_USER macro is used to set the frompc argument to some kernel address which represents any frompc that falls outside the kernel text range. The macro can expand to ~0U to bail out in that case. The MCOUNT_FROMPC_INTR macro is used to set the frompc argument to some kernel address to represent a call to a trap or interrupt handler. This to avoid that the trap or interrupt handler appear to be called from everywhere in the call graph. The macro can expand to ~0U to prevent adjusting frompc. Note that the argument is selfpc, not frompc. This commit defines the macros on all architectures equivalently to the original code in sys/libkern/mcount.c. People can take it from here... Compile-tested on: alpha, amd64, i386, ia64 and sparc64 Boot-tested on: i386
2004-08-27 19:42:35 +00:00
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) : ~0UL)
Add definitions for statistical and high-resolution profiling. The calling conventions for _mcount and __cyg_profile_func_enter are different, so statistical profiling kernels build and link but don't actually work. IWBNI one could tell gcc to only generate calls to the former. Define uintfptr_t properly for userland, but not for the kernel (I hope).
2002-07-30 06:14:34 +00:00
void mcount(uintfptr_t frompc, uintfptr_t selfpc);
Moved most of the "MI" definitions and declarations from <machine/profile.h> to <sys/gmon.h>. Cleaned them up a little by not attempting to ifdef for incomplete and out of date support for GUPROF in userland, as in the sparc64 version.
2004-05-19 15:41:26 +00:00
#else /* !_KERNEL */
Add definitions for statistical and high-resolution profiling. The calling conventions for _mcount and __cyg_profile_func_enter are different, so statistical profiling kernels build and link but don't actually work. IWBNI one could tell gcc to only generate calls to the former. Define uintfptr_t properly for userland, but not for the kernel (I hope).
2002-07-30 06:14:34 +00:00
typedef u_long uintfptr_t;
#endif /* _KERNEL */
Add kernel headers needed to build libc. Some are bogus and/or just enough to compile. Mostly obtained from: netbsd
2001-11-18 17:56:46 +00:00
#endif /* !_MACHINE_PROFILE_H_ */
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