/* * 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 */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_FASTTRAP_H #define _SYS_FASTTRAP_H /* #pragma ident "@(#)fasttrap.h 1.5 06/03/30 SMI" */ #include <sys/fasttrap_isa.h> #include <sys/dtrace.h> #include <sys/types.h> #ifdef __cplusplus extern "C" { #endif #if !defined(__APPLE__) #define FASTTRAPIOC (('m' << 24) | ('r' << 16) | ('f' << 8)) #else #define FASTTRAPIOC _IO('d', 0) #endif /* __APPLE__ */ #define FASTTRAPIOC_MAKEPROBE (FASTTRAPIOC | 1) #define FASTTRAPIOC_GETINSTR (FASTTRAPIOC | 2) typedef enum fasttrap_probe_type { DTFTP_NONE = 0, DTFTP_ENTRY, DTFTP_RETURN, DTFTP_OFFSETS, DTFTP_POST_OFFSETS, DTFTP_IS_ENABLED } fasttrap_probe_type_t; #if defined(__APPLE__) typedef enum fasttrap_provider_type { DTFTP_PROVIDER_NONE = 0, DTFTP_PROVIDER_USDT, DTFTP_PROVIDER_PID, DTFTP_PROVIDER_OBJC, DTFTP_PROVIDER_ONESHOT } fasttrap_provider_type_t; /* Moved from fasttrap.c */ #define FASTTRAP_PID_NAME "pid" #define FASTTRAP_OBJC_NAME "objc" #define FASTTRAP_ONESHOT_NAME "oneshot" #endif typedef struct fasttrap_probe_spec { pid_t ftps_pid; #if defined(__APPLE__) fasttrap_provider_type_t ftps_provider_type; fasttrap_probe_type_t ftps_probe_type; #endif char ftps_func[DTRACE_FUNCNAMELEN]; char ftps_mod[DTRACE_MODNAMELEN]; #if defined(__APPLE__) #if !defined(__LP64__) uint32_t pad; /* Explicit pad to keep ILP32 and LP64 lined up. */ #endif #endif uint64_t ftps_pc; uint64_t ftps_size; uint64_t ftps_noffs; uint64_t ftps_offs[1]; } fasttrap_probe_spec_t; typedef struct fasttrap_instr_query { uint64_t ftiq_pc; pid_t ftiq_pid; fasttrap_instr_t ftiq_instr; } fasttrap_instr_query_t; /* * To support the fasttrap provider from very early in a process's life, * the run-time linker, ld.so.1, has a program header of type PT_SUNWDTRACE * which points to a data object which must be PT_SUNWDTRACE_SIZE bytes. * This structure mimics the fasttrap provider section of the ulwp_t structure. * When the fasttrap provider is changed to require new or different * instructions, the data object in ld.so.1 and the thread initializers in libc * (libc_init() and _thrp_create()) need to be updated to include the new * instructions, and PT_SUNWDTRACE needs to be changed to a new unique number * (while the old value gets assigned something like PT_SUNWDTRACE_1). Since the * linker must be backward compatible with old Solaris releases, it must have * program headers for each of the PT_SUNWDTRACE versions. The kernel's * elfexec() function only has to look for the latest version of the * PT_SUNWDTRACE program header. */ #define PT_SUNWDTRACE_SIZE FASTTRAP_SUNWDTRACE_SIZE #ifdef __cplusplus } #endif #endif /* _SYS_FASTTRAP_H */