diff options
Diffstat (limited to 'sys/cddl/dev/fbt/fbt.h')
| -rw-r--r-- | sys/cddl/dev/fbt/fbt.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/sys/cddl/dev/fbt/fbt.h b/sys/cddl/dev/fbt/fbt.h new file mode 100644 index 000000000000..aa9bce564fa0 --- /dev/null +++ b/sys/cddl/dev/fbt/fbt.h @@ -0,0 +1,81 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + * + * Portions Copyright 2006-2008 John Birrell jb@freebsd.org + * + * $FreeBSD$ + * + */ + +/* + * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _FBT_H_ +#define _FBT_H_ + +#include "fbt_isa.h" + +/* + * fbt_probe is a bit of a misnomer. One of these structures is created for + * each trace point of an FBT probe. A probe might have multiple trace points + * (e.g., a function with multiple return instructions), and different probes + * might have a trace point at the same address (e.g., GNU ifuncs). + */ +typedef struct fbt_probe { + struct fbt_probe *fbtp_hashnext; /* global hash table linkage */ + struct fbt_probe *fbtp_tracenext; /* next probe for tracepoint */ + struct fbt_probe *fbtp_probenext; /* next tracepoint for probe */ + int fbtp_enabled; + fbt_patchval_t *fbtp_patchpoint; + int8_t fbtp_rval; + fbt_patchval_t fbtp_patchval; + fbt_patchval_t fbtp_savedval; + uintptr_t fbtp_roffset; + dtrace_id_t fbtp_id; + const char *fbtp_name; + modctl_t *fbtp_ctl; + int fbtp_loadcnt; + int fbtp_symindx; +} fbt_probe_t; + +struct linker_file; +struct linker_symval; +struct trapframe; + +int fbt_invop(uintptr_t, struct trapframe *, uintptr_t); +void fbt_patch_tracepoint(fbt_probe_t *, fbt_patchval_t); +int fbt_provide_module_function(struct linker_file *, int, + struct linker_symval *, void *); +int fbt_excluded(const char *name); + +extern dtrace_provider_id_t fbt_id; +extern fbt_probe_t **fbt_probetab; +extern int fbt_probetab_mask; + +#define FBT_ADDR2NDX(addr) ((((uintptr_t)(addr)) >> 4) & fbt_probetab_mask) +#define FBT_PROBETAB_SIZE 0x8000 /* 32k entries -- 128K total */ + +#ifdef MALLOC_DECLARE +MALLOC_DECLARE(M_FBT); +#endif + +#endif |