Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/reiserfs/machine/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/reiserfs/machine/profile.h |
/*- * 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. * 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: release/9.1.0/sys/amd64/include/profile.h 214346 2010-10-25 15:28:03Z jhb $ */ #ifndef _MACHINE_PROFILE_H_ #define _MACHINE_PROFILE_H_ #ifndef _SYS_CDEFS_H_ #error this file needs sys/cdefs.h as a prerequisite #endif #ifdef _KERNEL /* * Config generates something to tell the compiler to align functions on 16 * byte boundaries. A strict alignment is good for keeping the tables small. */ #define FUNCTION_ALIGNMENT 16 /* * The kernel uses assembler stubs instead of unportable inlines. * This is mainly to save a little time when profiling is not enabled, * which is the usual case for the kernel. */ #define _MCOUNT_DECL void mcount #define MCOUNT #ifdef GUPROF #define MCOUNT_DECL(s) #define MCOUNT_ENTER(s) #define MCOUNT_EXIT(s) #ifdef __GNUCLIKE_ASM #define MCOUNT_OVERHEAD(label) \ __asm __volatile("pushq %0; call __mcount; popq %%rcx" \ : \ : "i" (label) \ : "ax", "dx", "cx", "di", "si", "r8", "r9", "memory") #define MEXITCOUNT_OVERHEAD() \ __asm __volatile("call .mexitcount; 1:" \ : : \ : "ax", "dx", "cx", "di", "si", "r8", "r9", "memory") #define MEXITCOUNT_OVERHEAD_GETLABEL(labelp) \ __asm __volatile("movq $1b,%0" : "=rm" (labelp)) #elif defined(lint) #define MCOUNT_OVERHEAD(label) #define MEXITCOUNT_OVERHEAD() #define MEXITCOUNT_OVERHEAD_GETLABEL() #else #error this file needs to be ported to your compiler #endif /* !__GNUCLIKE_ASM */ #else /* !GUPROF */ #define MCOUNT_DECL(s) register_t s; #ifdef SMP extern int mcount_lock; #define MCOUNT_ENTER(s) { s = intr_disable(); \ while (!atomic_cmpset_acq_int(&mcount_lock, 0, 1)) \ /* nothing */ ; } #define MCOUNT_EXIT(s) { atomic_store_rel_int(&mcount_lock, 0); \ intr_restore(s); } #else #define MCOUNT_ENTER(s) { s = intr_disable(); } #define MCOUNT_EXIT(s) (intr_restore(s)) #endif #endif /* GUPROF */ 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) #else /* !_KERNEL */ #define FUNCTION_ALIGNMENT 4 #define _MCOUNT_DECL \ static void _mcount(uintfptr_t frompc, uintfptr_t selfpc) __used; \ static void _mcount #ifdef __GNUCLIKE_ASM #define MCOUNT __asm(" \n\ .text \n\ .p2align 4,0x90 \n\ .globl .mcount \n\ .type .mcount,@function \n\ .mcount: \n\ pushq %rdi \n\ pushq %rsi \n\ pushq %rdx \n\ pushq %rcx \n\ pushq %r8 \n\ pushq %r9 \n\ pushq %rax \n\ movq 8(%rbp),%rdi \n\ movq 7*8(%rsp),%rsi \n\ call _mcount \n\ popq %rax \n\ popq %r9 \n\ popq %r8 \n\ popq %rcx \n\ popq %rdx \n\ popq %rsi \n\ popq %rdi \n\ ret \n\ .size .mcount, . - .mcount"); #if 0 /* * We could use this, except it doesn't preserve the registers that were * being passed with arguments to the function that we were inserted * into. I've left it here as documentation of what the code above is * supposed to do. */ #define MCOUNT \ void \ mcount() \ { \ uintfptr_t selfpc, frompc; \ /* \ * Find the return address for mcount, \ * and the return address for mcount's caller. \ * \ * selfpc = pc pushed by call to mcount \ */ \ __asm("movq 8(%%rbp),%0" : "=r" (selfpc)); \ /* \ * frompc = pc pushed by call to mcount's caller. \ * The caller's stack frame has already been built, so %rbp is \ * the caller's frame pointer. The caller's raddr is in the \ * caller's frame following the caller's caller's frame pointer.\ */ \ __asm("movq (%%rbp),%0" : "=r" (frompc)); \ frompc = ((uintfptr_t *)frompc)[1]; \ _mcount(frompc, selfpc); \ } #endif #else /* !__GNUCLIKE_ASM */ #define MCOUNT #endif /* __GNUCLIKE_ASM */ typedef u_long uintfptr_t; #endif /* _KERNEL */ /* * An unsigned integral type that can hold non-negative difference between * function pointers. */ typedef u_long fptrdiff_t; #ifdef _KERNEL void mcount(uintfptr_t frompc, uintfptr_t selfpc); #else /* !_KERNEL */ #include <sys/cdefs.h> __BEGIN_DECLS #ifdef __GNUCLIKE_ASM void mcount(void) __asm(".mcount"); #endif __END_DECLS #endif /* _KERNEL */ #endif /* !_MACHINE_PROFILE_H_ */