X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/0c530ab8987f0ae6a1a3d9284f40182b88852816..2d21ac55c334faf3a56e5634905ed6987fc787d4:/bsd/sys/sdt_impl.h diff --git a/bsd/sys/sdt_impl.h b/bsd/sys/sdt_impl.h new file mode 100644 index 000000000..cbd117b61 --- /dev/null +++ b/bsd/sys/sdt_impl.h @@ -0,0 +1,134 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (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 + */ +/* + * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SDT_IMPL_H +#define _SDT_IMPL_H + +/* + * This file has been created by splitting up the original DTrace sdt.h + * header. Keep the pragma notice here to allow version tracking. + */ + +/* #pragma ident "@(#)sdt.h 1.7 05/06/08 SMI" */ + +#ifdef __cplusplus +extern "C" { +#endif + +extern const char *sdt_prefix; + +typedef struct sdt_probedesc { + char *sdpd_name; /* name of this probe */ +#if defined(__APPLE__) + char *sdpd_func; +#endif /* __APPLE__ */ + unsigned long sdpd_offset; /* offset of call in text */ + struct sdt_probedesc *sdpd_next; /* next static probe */ +} sdt_probedesc_t; + +#ifdef __cplusplus +} +#endif + +/* #pragma ident "@(#)sdt_impl.h 1.3 05/06/08 SMI" */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include + +#if !defined(__APPLE__) +#if defined(__i386) || defined(__amd64) +typedef uint8_t sdt_instr_t; +#else +typedef uint32_t sdt_instr_t; +#endif +#else +struct module { + int sdt_nprobes; + sdt_probedesc_t *sdt_probes; +}; + +extern int sdt_invop(uintptr_t, uintptr_t *, uintptr_t); + +void sdt_provide_module(void *, struct modctl *); +void sdt_init(void); + +extern int sdt_probetab_size; +extern int sdt_probetab_mask; +#define SDT_ADDR2NDX(addr) ((((uintptr_t)(addr)) >> 4) & sdt_probetab_mask) + + +#if defined(__i386__) || defined(__x86_64__) +typedef uint8_t sdt_instr_t; +#elif defined(__ppc__) || defined(__ppc64__) +typedef uint32_t sdt_instr_t; +#else +#error Unknown implementation +#endif +#endif /* __APPLE__ */ + +typedef struct sdt_provider { + const char *sdtp_name; /* name of provider */ + const char *sdtp_prefix; /* prefix for probe names */ + dtrace_pattr_t *sdtp_attr; /* stability attributes */ + dtrace_provider_id_t sdtp_id; /* provider ID */ +} sdt_provider_t; + +extern sdt_provider_t sdt_providers[]; /* array of providers */ + +typedef struct sdt_probe { + sdt_provider_t *sdp_provider; /* provider */ + char *sdp_name; /* name of probe */ + int sdp_namelen; /* length of allocated name */ + dtrace_id_t sdp_id; /* probe ID */ + struct modctl *sdp_ctl; /* modctl for module */ + int sdp_loadcnt; /* load count for module */ + int sdp_primary; /* non-zero if primary mod */ + sdt_instr_t *sdp_patchpoint; /* patch point */ + sdt_instr_t sdp_patchval; /* instruction to patch */ + sdt_instr_t sdp_savedval; /* saved instruction value */ + struct sdt_probe *sdp_next; /* next probe */ + struct sdt_probe *sdp_hashnext; /* next on hash */ +} sdt_probe_t; + +typedef struct sdt_argdesc { + const char *sda_provider; /* provider for arg */ + const char *sda_name; /* name of probe */ + const int sda_ndx; /* argument index */ + const int sda_mapping; /* mapping of argument */ + const char *sda_native; /* native type of argument */ + const char *sda_xlate; /* translated type of arg */ +} sdt_argdesc_t; + +extern void sdt_getargdesc(void *, dtrace_id_t, void *, dtrace_argdesc_t *); + +#ifdef __cplusplus +} +#endif + +#endif /* _SDT_IMPL_H */