1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#ifndef _SYS_FASTTRAP_H 28#define _SYS_FASTTRAP_H 29 30/* #pragma ident "@(#)fasttrap.h 1.5 06/03/30 SMI" */ 31 32#include <sys/fasttrap_isa.h> 33#include <sys/dtrace.h> 34#include <sys/types.h> 35 36#ifdef __cplusplus 37extern "C" { 38#endif 39 40#if !defined(__APPLE__) 41#define FASTTRAPIOC (('m' << 24) | ('r' << 16) | ('f' << 8)) 42#else 43#define FASTTRAPIOC _IO('d', 0) 44#endif /* __APPLE__ */ 45#define FASTTRAPIOC_MAKEPROBE (FASTTRAPIOC | 1) 46#define FASTTRAPIOC_GETINSTR (FASTTRAPIOC | 2) 47 48typedef enum fasttrap_probe_type { 49 DTFTP_NONE = 0, 50 DTFTP_ENTRY, 51 DTFTP_RETURN, 52 DTFTP_OFFSETS, 53 DTFTP_POST_OFFSETS, 54 DTFTP_IS_ENABLED 55} fasttrap_probe_type_t; 56 57#if defined(__APPLE__) 58typedef enum fasttrap_provider_type { 59 DTFTP_PROVIDER_NONE = 0, 60 DTFTP_PROVIDER_USDT, 61 DTFTP_PROVIDER_PID, 62 DTFTP_PROVIDER_OBJC, 63 DTFTP_PROVIDER_ONESHOT 64} fasttrap_provider_type_t; 65 66/* Moved from fasttrap.c */ 67#define FASTTRAP_PID_NAME "pid" 68#define FASTTRAP_OBJC_NAME "objc" 69#define FASTTRAP_ONESHOT_NAME "oneshot" 70 71#endif 72 73typedef struct fasttrap_probe_spec { 74 pid_t ftps_pid; 75#if defined(__APPLE__) 76 fasttrap_provider_type_t ftps_provider_type; 77 fasttrap_probe_type_t ftps_probe_type; 78#endif 79 char ftps_func[DTRACE_FUNCNAMELEN]; 80 char ftps_mod[DTRACE_MODNAMELEN]; 81 82#if defined(__APPLE__) 83#if !defined(__LP64__) 84 uint32_t pad; /* Explicit pad to keep ILP32 and LP64 lined up. */ 85#endif 86#endif 87 uint64_t ftps_pc; 88 uint64_t ftps_size; 89 uint64_t ftps_noffs; 90 uint64_t ftps_offs[1]; 91} fasttrap_probe_spec_t; 92 93typedef struct fasttrap_instr_query { 94 uint64_t ftiq_pc; 95 pid_t ftiq_pid; 96 fasttrap_instr_t ftiq_instr; 97} fasttrap_instr_query_t; 98 99/* 100 * To support the fasttrap provider from very early in a process's life, 101 * the run-time linker, ld.so.1, has a program header of type PT_SUNWDTRACE 102 * which points to a data object which must be PT_SUNWDTRACE_SIZE bytes. 103 * This structure mimics the fasttrap provider section of the ulwp_t structure. 104 * When the fasttrap provider is changed to require new or different 105 * instructions, the data object in ld.so.1 and the thread initializers in libc 106 * (libc_init() and _thrp_create()) need to be updated to include the new 107 * instructions, and PT_SUNWDTRACE needs to be changed to a new unique number 108 * (while the old value gets assigned something like PT_SUNWDTRACE_1). Since the 109 * linker must be backward compatible with old Solaris releases, it must have 110 * program headers for each of the PT_SUNWDTRACE versions. The kernel's 111 * elfexec() function only has to look for the latest version of the 112 * PT_SUNWDTRACE program header. 113 */ 114#define PT_SUNWDTRACE_SIZE FASTTRAP_SUNWDTRACE_SIZE 115 116#ifdef __cplusplus 117} 118#endif 119 120#endif /* _SYS_FASTTRAP_H */ 121