1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #ifndef _MDB_TARGET_H 28*7c478bd9Sstevel@tonic-gate #define _MDB_TARGET_H 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*7c478bd9Sstevel@tonic-gate 32*7c478bd9Sstevel@tonic-gate #include <sys/utsname.h> 33*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 34*7c478bd9Sstevel@tonic-gate #include <gelf.h> 35*7c478bd9Sstevel@tonic-gate 36*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 37*7c478bd9Sstevel@tonic-gate extern "C" { 38*7c478bd9Sstevel@tonic-gate #endif 39*7c478bd9Sstevel@tonic-gate 40*7c478bd9Sstevel@tonic-gate /* 41*7c478bd9Sstevel@tonic-gate * Forward declaration of the target structure: the target itself is defined in 42*7c478bd9Sstevel@tonic-gate * mdb_tgt_impl.h and is opaque with respect to callers of this interface. 43*7c478bd9Sstevel@tonic-gate */ 44*7c478bd9Sstevel@tonic-gate 45*7c478bd9Sstevel@tonic-gate struct mdb_tgt; 46*7c478bd9Sstevel@tonic-gate struct mdb_arg; 47*7c478bd9Sstevel@tonic-gate struct ctf_file; 48*7c478bd9Sstevel@tonic-gate 49*7c478bd9Sstevel@tonic-gate typedef struct mdb_tgt mdb_tgt_t; 50*7c478bd9Sstevel@tonic-gate 51*7c478bd9Sstevel@tonic-gate extern void mdb_create_builtin_tgts(void); 52*7c478bd9Sstevel@tonic-gate extern void mdb_create_loadable_disasms(void); 53*7c478bd9Sstevel@tonic-gate 54*7c478bd9Sstevel@tonic-gate /* 55*7c478bd9Sstevel@tonic-gate * Target Constructors 56*7c478bd9Sstevel@tonic-gate * 57*7c478bd9Sstevel@tonic-gate * These functions are used to create a complete debugger target. The 58*7c478bd9Sstevel@tonic-gate * constructor is passed as an argument to mdb_tgt_create(). 59*7c478bd9Sstevel@tonic-gate */ 60*7c478bd9Sstevel@tonic-gate 61*7c478bd9Sstevel@tonic-gate extern int mdb_value_tgt_create(mdb_tgt_t *, int, const char *[]); 62*7c478bd9Sstevel@tonic-gate #ifndef _KMDB 63*7c478bd9Sstevel@tonic-gate extern int mdb_kvm_tgt_create(mdb_tgt_t *, int, const char *[]); 64*7c478bd9Sstevel@tonic-gate extern int mdb_proc_tgt_create(mdb_tgt_t *, int, const char *[]); 65*7c478bd9Sstevel@tonic-gate extern int mdb_kproc_tgt_create(mdb_tgt_t *, int, const char *[]); 66*7c478bd9Sstevel@tonic-gate extern int mdb_rawfile_tgt_create(mdb_tgt_t *, int, const char *[]); 67*7c478bd9Sstevel@tonic-gate #else 68*7c478bd9Sstevel@tonic-gate extern int kmdb_kvm_create(mdb_tgt_t *, int, const char *[]); 69*7c478bd9Sstevel@tonic-gate #endif 70*7c478bd9Sstevel@tonic-gate 71*7c478bd9Sstevel@tonic-gate /* 72*7c478bd9Sstevel@tonic-gate * Targets are created by calling mdb_tgt_create() with an optional set of 73*7c478bd9Sstevel@tonic-gate * target flags, an argument list, and a target constructor (see above): 74*7c478bd9Sstevel@tonic-gate */ 75*7c478bd9Sstevel@tonic-gate 76*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_RDWR 0x0001 /* Open for writing (else read-only) */ 77*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_ALLOWIO 0x0002 /* Allow I/O mem access (live only) */ 78*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_FORCE 0x0004 /* Force open (even if non-exclusive) */ 79*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_PRELOAD 0x0008 /* Preload all symbol tables */ 80*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_NOLOAD 0x0010 /* Do not do load-object processing */ 81*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_NOSTOP 0x0020 /* Do not stop target on attach */ 82*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_STEP 0x0040 /* Single-step is pending */ 83*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_STEP_OUT 0x0080 /* Step-out is pending */ 84*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_STEP_BRANCH 0x0100 /* Step-branch is pending */ 85*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_NEXT 0x0200 /* Step-over is pending */ 86*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_CONT 0x0400 /* Continue is pending */ 87*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_BUSY 0x0800 /* Target is busy executing */ 88*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_ASIO 0x1000 /* Use t_aread and t_awrite for i/o */ 89*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_UNLOAD 0x2000 /* Unload has been requested */ 90*7c478bd9Sstevel@tonic-gate #define MDB_TGT_F_ALL 0x3fff /* Mask of all valid flags */ 91*7c478bd9Sstevel@tonic-gate 92*7c478bd9Sstevel@tonic-gate typedef int mdb_tgt_ctor_f(mdb_tgt_t *, int, const char *[]); 93*7c478bd9Sstevel@tonic-gate 94*7c478bd9Sstevel@tonic-gate extern mdb_tgt_t *mdb_tgt_create(mdb_tgt_ctor_f *, int, int, const char *[]); 95*7c478bd9Sstevel@tonic-gate extern void mdb_tgt_destroy(mdb_tgt_t *); 96*7c478bd9Sstevel@tonic-gate 97*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_getflags(mdb_tgt_t *); 98*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_setflags(mdb_tgt_t *, int); 99*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_setcontext(mdb_tgt_t *, void *); 100*7c478bd9Sstevel@tonic-gate 101*7c478bd9Sstevel@tonic-gate /* 102*7c478bd9Sstevel@tonic-gate * Targets are activated and de-activated by the debugger framework. An 103*7c478bd9Sstevel@tonic-gate * activation occurs after construction when the target becomes the current 104*7c478bd9Sstevel@tonic-gate * target in the debugger. A target is de-activated prior to its destructor 105*7c478bd9Sstevel@tonic-gate * being called by mdb_tgt_destroy, or when another target is activated. 106*7c478bd9Sstevel@tonic-gate * These callbacks are suitable for loading support modules and other tasks. 107*7c478bd9Sstevel@tonic-gate */ 108*7c478bd9Sstevel@tonic-gate extern void mdb_tgt_activate(mdb_tgt_t *); 109*7c478bd9Sstevel@tonic-gate 110*7c478bd9Sstevel@tonic-gate /* 111*7c478bd9Sstevel@tonic-gate * Prior to issuing a new command prompt, the debugger framework calls the 112*7c478bd9Sstevel@tonic-gate * target's periodic callback to allow it to load new modules or perform 113*7c478bd9Sstevel@tonic-gate * other background tasks. 114*7c478bd9Sstevel@tonic-gate */ 115*7c478bd9Sstevel@tonic-gate extern void mdb_tgt_periodic(mdb_tgt_t *); 116*7c478bd9Sstevel@tonic-gate 117*7c478bd9Sstevel@tonic-gate /* 118*7c478bd9Sstevel@tonic-gate * Convenience functions for accessing miscellaneous target information. 119*7c478bd9Sstevel@tonic-gate */ 120*7c478bd9Sstevel@tonic-gate extern const char *mdb_tgt_name(mdb_tgt_t *); 121*7c478bd9Sstevel@tonic-gate extern const char *mdb_tgt_isa(mdb_tgt_t *); 122*7c478bd9Sstevel@tonic-gate extern const char *mdb_tgt_platform(mdb_tgt_t *); 123*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_uname(mdb_tgt_t *, struct utsname *); 124*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_dmodel(mdb_tgt_t *); 125*7c478bd9Sstevel@tonic-gate 126*7c478bd9Sstevel@tonic-gate /* 127*7c478bd9Sstevel@tonic-gate * Address Space Interface 128*7c478bd9Sstevel@tonic-gate * 129*7c478bd9Sstevel@tonic-gate * Each target can provide access to a set of address spaces, which may include 130*7c478bd9Sstevel@tonic-gate * a primary virtual address space, a physical address space, an object file 131*7c478bd9Sstevel@tonic-gate * address space (where virtual addresses are converted to file offsets in an 132*7c478bd9Sstevel@tonic-gate * object file), and an I/O port address space. Additionally, the target can 133*7c478bd9Sstevel@tonic-gate * provide access to alternate address spaces, which are identified by the 134*7c478bd9Sstevel@tonic-gate * opaque mdb_tgt_as_t type. If the 'as' parameter to mdb_tgt_aread or 135*7c478bd9Sstevel@tonic-gate * mdb_tgt_awrite is one of the listed constants, these calls are equivalent 136*7c478bd9Sstevel@tonic-gate * to mdb_tgt_{v|p|f|io}read or write. 137*7c478bd9Sstevel@tonic-gate */ 138*7c478bd9Sstevel@tonic-gate 139*7c478bd9Sstevel@tonic-gate typedef void * mdb_tgt_as_t; /* Opaque address space id */ 140*7c478bd9Sstevel@tonic-gate typedef uint64_t mdb_tgt_addr_t; /* Generic unsigned address */ 141*7c478bd9Sstevel@tonic-gate typedef uint64_t physaddr_t; /* Physical memory address */ 142*7c478bd9Sstevel@tonic-gate 143*7c478bd9Sstevel@tonic-gate #define MDB_TGT_AS_VIRT ((mdb_tgt_as_t)-1L) /* Virtual address space */ 144*7c478bd9Sstevel@tonic-gate #define MDB_TGT_AS_PHYS ((mdb_tgt_as_t)-2L) /* Physical address space */ 145*7c478bd9Sstevel@tonic-gate #define MDB_TGT_AS_FILE ((mdb_tgt_as_t)-3L) /* Object file address space */ 146*7c478bd9Sstevel@tonic-gate #define MDB_TGT_AS_IO ((mdb_tgt_as_t)-4L) /* I/o address space */ 147*7c478bd9Sstevel@tonic-gate 148*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_aread(mdb_tgt_t *, mdb_tgt_as_t, 149*7c478bd9Sstevel@tonic-gate void *, size_t, mdb_tgt_addr_t); 150*7c478bd9Sstevel@tonic-gate 151*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_awrite(mdb_tgt_t *, mdb_tgt_as_t, 152*7c478bd9Sstevel@tonic-gate const void *, size_t, mdb_tgt_addr_t); 153*7c478bd9Sstevel@tonic-gate 154*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_vread(mdb_tgt_t *, void *, size_t, uintptr_t); 155*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_vwrite(mdb_tgt_t *, const void *, size_t, uintptr_t); 156*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_pread(mdb_tgt_t *, void *, size_t, physaddr_t); 157*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_pwrite(mdb_tgt_t *, const void *, size_t, physaddr_t); 158*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_fread(mdb_tgt_t *, void *, size_t, uintptr_t); 159*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_fwrite(mdb_tgt_t *, const void *, size_t, uintptr_t); 160*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_ioread(mdb_tgt_t *, void *, size_t, uintptr_t); 161*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_iowrite(mdb_tgt_t *, const void *, size_t, uintptr_t); 162*7c478bd9Sstevel@tonic-gate 163*7c478bd9Sstevel@tonic-gate /* 164*7c478bd9Sstevel@tonic-gate * Convert an address-space's virtual address to the corresponding 165*7c478bd9Sstevel@tonic-gate * physical address (only useful for kernel targets): 166*7c478bd9Sstevel@tonic-gate */ 167*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_vtop(mdb_tgt_t *, mdb_tgt_as_t, uintptr_t, physaddr_t *); 168*7c478bd9Sstevel@tonic-gate 169*7c478bd9Sstevel@tonic-gate /* 170*7c478bd9Sstevel@tonic-gate * Convenience functions for reading and writing null-terminated 171*7c478bd9Sstevel@tonic-gate * strings from any of the target address spaces: 172*7c478bd9Sstevel@tonic-gate */ 173*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_readstr(mdb_tgt_t *, mdb_tgt_as_t, 174*7c478bd9Sstevel@tonic-gate char *, size_t, mdb_tgt_addr_t); 175*7c478bd9Sstevel@tonic-gate 176*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_writestr(mdb_tgt_t *, mdb_tgt_as_t, 177*7c478bd9Sstevel@tonic-gate const char *, mdb_tgt_addr_t); 178*7c478bd9Sstevel@tonic-gate 179*7c478bd9Sstevel@tonic-gate /* 180*7c478bd9Sstevel@tonic-gate * Symbol Table Interface 181*7c478bd9Sstevel@tonic-gate * 182*7c478bd9Sstevel@tonic-gate * Each target can provide access to one or more symbol tables, which can be 183*7c478bd9Sstevel@tonic-gate * iterated over, or used to lookup symbols by either name or address. The 184*7c478bd9Sstevel@tonic-gate * target can support a primary executable and primary dynamic symbol table, 185*7c478bd9Sstevel@tonic-gate * a symbol table for its run-time link-editor, and symbol tables for one or 186*7c478bd9Sstevel@tonic-gate * more loaded objects. A symbol is uniquely identified by an object name, 187*7c478bd9Sstevel@tonic-gate * a symbol table id, and a symbol id. Symbols can be discovered by iterating 188*7c478bd9Sstevel@tonic-gate * over them, looking them up by name, or looking them up by address. 189*7c478bd9Sstevel@tonic-gate */ 190*7c478bd9Sstevel@tonic-gate 191*7c478bd9Sstevel@tonic-gate typedef struct mdb_syminfo { 192*7c478bd9Sstevel@tonic-gate uint_t sym_table; /* Symbol table id (see symbol_iter, below) */ 193*7c478bd9Sstevel@tonic-gate uint_t sym_id; /* Symbol identifier */ 194*7c478bd9Sstevel@tonic-gate } mdb_syminfo_t; 195*7c478bd9Sstevel@tonic-gate 196*7c478bd9Sstevel@tonic-gate /* 197*7c478bd9Sstevel@tonic-gate * Reserved object names for mdb_tgt_lookup_by_name(): 198*7c478bd9Sstevel@tonic-gate */ 199*7c478bd9Sstevel@tonic-gate #define MDB_TGT_OBJ_EXEC ((const char *)0L) /* Executable symbols */ 200*7c478bd9Sstevel@tonic-gate #define MDB_TGT_OBJ_RTLD ((const char *)1L) /* Ldso/krtld symbols */ 201*7c478bd9Sstevel@tonic-gate #define MDB_TGT_OBJ_EVERY ((const char *)-1L) /* All known symbols */ 202*7c478bd9Sstevel@tonic-gate 203*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_lookup_by_scope(mdb_tgt_t *, const char *, 204*7c478bd9Sstevel@tonic-gate GElf_Sym *, mdb_syminfo_t *); 205*7c478bd9Sstevel@tonic-gate 206*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_lookup_by_name(mdb_tgt_t *, const char *, 207*7c478bd9Sstevel@tonic-gate const char *, GElf_Sym *, mdb_syminfo_t *); 208*7c478bd9Sstevel@tonic-gate 209*7c478bd9Sstevel@tonic-gate /* 210*7c478bd9Sstevel@tonic-gate * Flag bit passed to mdb_tgt_lookup_by_addr(): 211*7c478bd9Sstevel@tonic-gate */ 212*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SYM_FUZZY 0 /* Match closest address */ 213*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SYM_EXACT 1 /* Match exact address only */ 214*7c478bd9Sstevel@tonic-gate 215*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SYM_NAMLEN 1024 /* Recommended max symbol name length */ 216*7c478bd9Sstevel@tonic-gate 217*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_lookup_by_addr(mdb_tgt_t *, uintptr_t, uint_t, 218*7c478bd9Sstevel@tonic-gate char *, size_t, GElf_Sym *, mdb_syminfo_t *); 219*7c478bd9Sstevel@tonic-gate 220*7c478bd9Sstevel@tonic-gate /* 221*7c478bd9Sstevel@tonic-gate * Callback function prototype for mdb_tgt_symbol_iter(): 222*7c478bd9Sstevel@tonic-gate */ 223*7c478bd9Sstevel@tonic-gate typedef int mdb_tgt_sym_f(void *, const GElf_Sym *, const char *, 224*7c478bd9Sstevel@tonic-gate const mdb_syminfo_t *sip, const char *); 225*7c478bd9Sstevel@tonic-gate 226*7c478bd9Sstevel@tonic-gate /* 227*7c478bd9Sstevel@tonic-gate * Values for selecting symbol tables with mdb_tgt_symbol_iter(): 228*7c478bd9Sstevel@tonic-gate */ 229*7c478bd9Sstevel@tonic-gate #define MDB_TGT_PRVSYM 0 /* User's private symbol table */ 230*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SYMTAB 1 /* Normal symbol table (.symtab) */ 231*7c478bd9Sstevel@tonic-gate #define MDB_TGT_DYNSYM 2 /* Dynamic symbol table (.dynsym) */ 232*7c478bd9Sstevel@tonic-gate 233*7c478bd9Sstevel@tonic-gate /* 234*7c478bd9Sstevel@tonic-gate * Values for selecting symbols of interest by binding and type. These flags 235*7c478bd9Sstevel@tonic-gate * can be used to construct a bitmask to pass to mdb_tgt_symbol_iter(): 236*7c478bd9Sstevel@tonic-gate */ 237*7c478bd9Sstevel@tonic-gate #define MDB_TGT_BIND_LOCAL 0x0001 /* Local (static-scope) symbols */ 238*7c478bd9Sstevel@tonic-gate #define MDB_TGT_BIND_GLOBAL 0x0002 /* Global symbols */ 239*7c478bd9Sstevel@tonic-gate #define MDB_TGT_BIND_WEAK 0x0004 /* Weak binding symbols */ 240*7c478bd9Sstevel@tonic-gate 241*7c478bd9Sstevel@tonic-gate #define MDB_TGT_BIND_ANY 0x0007 /* Any of the above */ 242*7c478bd9Sstevel@tonic-gate 243*7c478bd9Sstevel@tonic-gate #define MDB_TGT_TYPE_NOTYPE 0x0100 /* Symbol has no type */ 244*7c478bd9Sstevel@tonic-gate #define MDB_TGT_TYPE_OBJECT 0x0200 /* Symbol refers to data */ 245*7c478bd9Sstevel@tonic-gate #define MDB_TGT_TYPE_FUNC 0x0400 /* Symbol refers to text */ 246*7c478bd9Sstevel@tonic-gate #define MDB_TGT_TYPE_SECT 0x0800 /* Symbol refers to a section */ 247*7c478bd9Sstevel@tonic-gate #define MDB_TGT_TYPE_FILE 0x1000 /* Symbol refers to a source file */ 248*7c478bd9Sstevel@tonic-gate #define MDB_TGT_TYPE_COMMON 0x2000 /* Symbol refers to a common block */ 249*7c478bd9Sstevel@tonic-gate #define MDB_TGT_TYPE_TLS 0x4000 /* Symbol refers to TLS */ 250*7c478bd9Sstevel@tonic-gate 251*7c478bd9Sstevel@tonic-gate #define MDB_TGT_TYPE_ANY 0x7f00 /* Any of the above */ 252*7c478bd9Sstevel@tonic-gate 253*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_symbol_iter(mdb_tgt_t *, const char *, uint_t, uint_t, 254*7c478bd9Sstevel@tonic-gate mdb_tgt_sym_f *, void *); 255*7c478bd9Sstevel@tonic-gate 256*7c478bd9Sstevel@tonic-gate /* 257*7c478bd9Sstevel@tonic-gate * Convenience functions for reading and writing at the address specified 258*7c478bd9Sstevel@tonic-gate * by a given object file and symbol name: 259*7c478bd9Sstevel@tonic-gate */ 260*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_readsym(mdb_tgt_t *, mdb_tgt_as_t, void *, size_t, 261*7c478bd9Sstevel@tonic-gate const char *, const char *); 262*7c478bd9Sstevel@tonic-gate 263*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_writesym(mdb_tgt_t *, mdb_tgt_as_t, const void *, size_t, 264*7c478bd9Sstevel@tonic-gate const char *, const char *); 265*7c478bd9Sstevel@tonic-gate 266*7c478bd9Sstevel@tonic-gate /* 267*7c478bd9Sstevel@tonic-gate * Virtual Address Mapping and Load Object interface 268*7c478bd9Sstevel@tonic-gate * 269*7c478bd9Sstevel@tonic-gate * These interfaces allow the caller to iterate over the various virtual 270*7c478bd9Sstevel@tonic-gate * address space mappings, or only those mappings corresponding to load objects. 271*7c478bd9Sstevel@tonic-gate * The mapping name (MDB_TGT_MAPSZ) is defined to be large enough for a string 272*7c478bd9Sstevel@tonic-gate * of length MAXPATHLEN, plus space for "LM`<lmid>" where lmid is a hex number. 273*7c478bd9Sstevel@tonic-gate */ 274*7c478bd9Sstevel@tonic-gate 275*7c478bd9Sstevel@tonic-gate #define MDB_TGT_MAPSZ 1048 /* Maximum length of mapping name */ 276*7c478bd9Sstevel@tonic-gate 277*7c478bd9Sstevel@tonic-gate #define MDB_TGT_MAP_R 0x01 /* Mapping is readable */ 278*7c478bd9Sstevel@tonic-gate #define MDB_TGT_MAP_W 0x02 /* Mapping is writeable */ 279*7c478bd9Sstevel@tonic-gate #define MDB_TGT_MAP_X 0x04 /* Mapping is executable */ 280*7c478bd9Sstevel@tonic-gate #define MDB_TGT_MAP_SHMEM 0x08 /* Mapping is shared memory */ 281*7c478bd9Sstevel@tonic-gate #define MDB_TGT_MAP_STACK 0x10 /* Mapping is a stack of some kind */ 282*7c478bd9Sstevel@tonic-gate #define MDB_TGT_MAP_HEAP 0x20 /* Mapping is a heap of some kind */ 283*7c478bd9Sstevel@tonic-gate #define MDB_TGT_MAP_ANON 0x40 /* Mapping is anonymous memory */ 284*7c478bd9Sstevel@tonic-gate 285*7c478bd9Sstevel@tonic-gate typedef struct mdb_map { 286*7c478bd9Sstevel@tonic-gate char map_name[MDB_TGT_MAPSZ]; /* Name of mapped object */ 287*7c478bd9Sstevel@tonic-gate uintptr_t map_base; /* Virtual address of base of mapping */ 288*7c478bd9Sstevel@tonic-gate size_t map_size; /* Size of mapping in bytes */ 289*7c478bd9Sstevel@tonic-gate uint_t map_flags; /* Flags (see above) */ 290*7c478bd9Sstevel@tonic-gate } mdb_map_t; 291*7c478bd9Sstevel@tonic-gate 292*7c478bd9Sstevel@tonic-gate typedef int mdb_tgt_map_f(void *, const mdb_map_t *, const char *); 293*7c478bd9Sstevel@tonic-gate 294*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_mapping_iter(mdb_tgt_t *, mdb_tgt_map_f *, void *); 295*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_object_iter(mdb_tgt_t *, mdb_tgt_map_f *, void *); 296*7c478bd9Sstevel@tonic-gate 297*7c478bd9Sstevel@tonic-gate extern const mdb_map_t *mdb_tgt_addr_to_map(mdb_tgt_t *, uintptr_t); 298*7c478bd9Sstevel@tonic-gate extern const mdb_map_t *mdb_tgt_name_to_map(mdb_tgt_t *, const char *); 299*7c478bd9Sstevel@tonic-gate 300*7c478bd9Sstevel@tonic-gate extern struct ctf_file *mdb_tgt_addr_to_ctf(mdb_tgt_t *, uintptr_t); 301*7c478bd9Sstevel@tonic-gate extern struct ctf_file *mdb_tgt_name_to_ctf(mdb_tgt_t *, const char *); 302*7c478bd9Sstevel@tonic-gate 303*7c478bd9Sstevel@tonic-gate /* 304*7c478bd9Sstevel@tonic-gate * Execution Control Interface 305*7c478bd9Sstevel@tonic-gate * 306*7c478bd9Sstevel@tonic-gate * For in-situ debugging, we provide a relatively simple interface for target 307*7c478bd9Sstevel@tonic-gate * execution control. The target can be continued, or the representative 308*7c478bd9Sstevel@tonic-gate * thread of control can be single-stepped. Once the target has stopped, the 309*7c478bd9Sstevel@tonic-gate * status of the representative thread is returned (this status can also be 310*7c478bd9Sstevel@tonic-gate * obtained using mdb_tgt_status()). Upon continue, the target's internal list 311*7c478bd9Sstevel@tonic-gate * of software event specifiers determines what types of events will cause the 312*7c478bd9Sstevel@tonic-gate * target to stop and transfer control back to the debugger. The target 313*7c478bd9Sstevel@tonic-gate * allows any number of virtual event specifiers to be registered, along with 314*7c478bd9Sstevel@tonic-gate * an associated callback. These virtual specifiers are layered on top of 315*7c478bd9Sstevel@tonic-gate * underlying software event specifiers that are private to the target. The 316*7c478bd9Sstevel@tonic-gate * virtual event specifier list can be manipulated by the functions described 317*7c478bd9Sstevel@tonic-gate * below. We currently support the following types of traced events: 318*7c478bd9Sstevel@tonic-gate * breakpoints, watchpoints, system call entry, system call exit, signals, 319*7c478bd9Sstevel@tonic-gate * and machine faults. 320*7c478bd9Sstevel@tonic-gate */ 321*7c478bd9Sstevel@tonic-gate 322*7c478bd9Sstevel@tonic-gate typedef uintptr_t mdb_tgt_tid_t; /* Opaque thread identifier */ 323*7c478bd9Sstevel@tonic-gate 324*7c478bd9Sstevel@tonic-gate typedef struct mdb_tgt_status { 325*7c478bd9Sstevel@tonic-gate mdb_tgt_tid_t st_tid; /* Id of thread in question */ 326*7c478bd9Sstevel@tonic-gate uintptr_t st_pc; /* Program counter, if stopped */ 327*7c478bd9Sstevel@tonic-gate uint_t st_state; /* Program state (see below) */ 328*7c478bd9Sstevel@tonic-gate uint_t st_flags; /* Status flags (see below) */ 329*7c478bd9Sstevel@tonic-gate } mdb_tgt_status_t; 330*7c478bd9Sstevel@tonic-gate 331*7c478bd9Sstevel@tonic-gate /* 332*7c478bd9Sstevel@tonic-gate * Program state (st_state): 333*7c478bd9Sstevel@tonic-gate * (MDB_STATE_* definitions in the module API need to be in sync with these) 334*7c478bd9Sstevel@tonic-gate */ 335*7c478bd9Sstevel@tonic-gate #define MDB_TGT_IDLE 0 /* Target is idle (not running yet) */ 336*7c478bd9Sstevel@tonic-gate #define MDB_TGT_RUNNING 1 /* Target is currently executing */ 337*7c478bd9Sstevel@tonic-gate #define MDB_TGT_STOPPED 2 /* Target is stopped */ 338*7c478bd9Sstevel@tonic-gate #define MDB_TGT_UNDEAD 3 /* Target is undead (zombie) */ 339*7c478bd9Sstevel@tonic-gate #define MDB_TGT_DEAD 4 /* Target is dead (core dump) */ 340*7c478bd9Sstevel@tonic-gate #define MDB_TGT_LOST 5 /* Target lost by debugger */ 341*7c478bd9Sstevel@tonic-gate 342*7c478bd9Sstevel@tonic-gate /* 343*7c478bd9Sstevel@tonic-gate * Status flags (st_flags): 344*7c478bd9Sstevel@tonic-gate */ 345*7c478bd9Sstevel@tonic-gate #define MDB_TGT_ISTOP 0x1 /* Stop on event of interest */ 346*7c478bd9Sstevel@tonic-gate #define MDB_TGT_DSTOP 0x2 /* Stop directive is pending */ 347*7c478bd9Sstevel@tonic-gate #define MDB_TGT_BUSY 0x4 /* Busy in debugger */ 348*7c478bd9Sstevel@tonic-gate 349*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_status(mdb_tgt_t *, mdb_tgt_status_t *); 350*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_run(mdb_tgt_t *, int, const struct mdb_arg *); 351*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_step(mdb_tgt_t *, mdb_tgt_status_t *); 352*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_step_out(mdb_tgt_t *, mdb_tgt_status_t *); 353*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_step_branch(mdb_tgt_t *, mdb_tgt_status_t *); 354*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_next(mdb_tgt_t *, mdb_tgt_status_t *); 355*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_continue(mdb_tgt_t *, mdb_tgt_status_t *); 356*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_signal(mdb_tgt_t *, int); 357*7c478bd9Sstevel@tonic-gate 358*7c478bd9Sstevel@tonic-gate /* 359*7c478bd9Sstevel@tonic-gate * Iterating through the specifier list yields the integer id (VID) and private 360*7c478bd9Sstevel@tonic-gate * data pointer for each specifier. 361*7c478bd9Sstevel@tonic-gate */ 362*7c478bd9Sstevel@tonic-gate typedef int mdb_tgt_vespec_f(mdb_tgt_t *, void *, int, void *); 363*7c478bd9Sstevel@tonic-gate 364*7c478bd9Sstevel@tonic-gate /* 365*7c478bd9Sstevel@tonic-gate * Each event specifier is defined to be in one of the following states. The 366*7c478bd9Sstevel@tonic-gate * state transitions are discussed in detail in the comments in mdb_target.c. 367*7c478bd9Sstevel@tonic-gate */ 368*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_IDLE 1 /* Inactive (e.g. object not loaded) */ 369*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_ACTIVE 2 /* Active but not armed in target */ 370*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_ARMED 3 /* Active and armed (e.g. bkpt set) */ 371*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_ERROR 4 /* Failed to arm event */ 372*7c478bd9Sstevel@tonic-gate 373*7c478bd9Sstevel@tonic-gate /* 374*7c478bd9Sstevel@tonic-gate * Event specifiers may also have one or more of the following additional 375*7c478bd9Sstevel@tonic-gate * properties (spec_flags bits): 376*7c478bd9Sstevel@tonic-gate */ 377*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_INTERNAL 0x0001 /* Internal to target implementation */ 378*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_SILENT 0x0002 /* Do not describe when matched */ 379*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_TEMPORARY 0x0004 /* Delete next time target stops */ 380*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_MATCHED 0x0008 /* Specifier matched at last stop */ 381*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_DISABLED 0x0010 /* Specifier cannot be armed */ 382*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_DELETED 0x0020 /* Specifier has been deleted */ 383*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_AUTODEL 0x0040 /* Delete when match limit reached */ 384*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_AUTODIS 0x0080 /* Disable when match limit reached */ 385*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_AUTOSTOP 0x0100 /* Stop when match limit reached */ 386*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_STICKY 0x0200 /* Do not delete as part of :z */ 387*7c478bd9Sstevel@tonic-gate 388*7c478bd9Sstevel@tonic-gate #define MDB_TGT_SPEC_HIDDEN (MDB_TGT_SPEC_INTERNAL | MDB_TGT_SPEC_SILENT) 389*7c478bd9Sstevel@tonic-gate 390*7c478bd9Sstevel@tonic-gate typedef struct mdb_tgt_spec_desc { 391*7c478bd9Sstevel@tonic-gate int spec_id; /* Event specifier id (VID) */ 392*7c478bd9Sstevel@tonic-gate uint_t spec_flags; /* Flags (see above) */ 393*7c478bd9Sstevel@tonic-gate uint_t spec_hits; /* Count of number of times matched */ 394*7c478bd9Sstevel@tonic-gate uint_t spec_limit; /* Limit on number of times matched */ 395*7c478bd9Sstevel@tonic-gate int spec_state; /* State (see above) */ 396*7c478bd9Sstevel@tonic-gate int spec_errno; /* Last error code (if IDLE or ERROR) */ 397*7c478bd9Sstevel@tonic-gate uintptr_t spec_base; /* Start of affected memory region */ 398*7c478bd9Sstevel@tonic-gate size_t spec_size; /* Size of affected memory region */ 399*7c478bd9Sstevel@tonic-gate void *spec_data; /* Callback private data */ 400*7c478bd9Sstevel@tonic-gate } mdb_tgt_spec_desc_t; 401*7c478bd9Sstevel@tonic-gate 402*7c478bd9Sstevel@tonic-gate /* 403*7c478bd9Sstevel@tonic-gate * The target provides functions to convert a VID into the private data pointer, 404*7c478bd9Sstevel@tonic-gate * or a complete description of the event specifier and its state. 405*7c478bd9Sstevel@tonic-gate */ 406*7c478bd9Sstevel@tonic-gate extern void *mdb_tgt_vespec_data(mdb_tgt_t *, int); 407*7c478bd9Sstevel@tonic-gate extern char *mdb_tgt_vespec_info(mdb_tgt_t *, int, 408*7c478bd9Sstevel@tonic-gate mdb_tgt_spec_desc_t *, char *, size_t); 409*7c478bd9Sstevel@tonic-gate 410*7c478bd9Sstevel@tonic-gate /* 411*7c478bd9Sstevel@tonic-gate * The common target layer provides functions to iterate over the list of 412*7c478bd9Sstevel@tonic-gate * registered event specifiers, modify or disable them, and delete them. 413*7c478bd9Sstevel@tonic-gate */ 414*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_vespec_iter(mdb_tgt_t *, mdb_tgt_vespec_f *, void *); 415*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_vespec_modify(mdb_tgt_t *, int, uint_t, uint_t, void *); 416*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_vespec_enable(mdb_tgt_t *, int); 417*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_vespec_disable(mdb_tgt_t *, int); 418*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_vespec_delete(mdb_tgt_t *, int); 419*7c478bd9Sstevel@tonic-gate 420*7c478bd9Sstevel@tonic-gate /* 421*7c478bd9Sstevel@tonic-gate * The mdb_tgt_add_* functions are used to add software event specifiers to the 422*7c478bd9Sstevel@tonic-gate * target. The caller provides a bitmask of flags (spec_flags above), callback 423*7c478bd9Sstevel@tonic-gate * function pointer, and callback data as arguments. Whenever a matching event 424*7c478bd9Sstevel@tonic-gate * is detected, a software event callback function is invoked. The callback 425*7c478bd9Sstevel@tonic-gate * receives a pointer to the target, the VID of the corresponding event 426*7c478bd9Sstevel@tonic-gate * specifier, and a private data pointer as arguments. If no callback is 427*7c478bd9Sstevel@tonic-gate * desired, the caller can specify a pointer to the no_se_f default callback. 428*7c478bd9Sstevel@tonic-gate * Unlike other target layer functions, the mdb_tgt_add_* interfaces return the 429*7c478bd9Sstevel@tonic-gate * VID of the new event (which may be positive or negative), or 0 if the new 430*7c478bd9Sstevel@tonic-gate * event could not be created. 431*7c478bd9Sstevel@tonic-gate */ 432*7c478bd9Sstevel@tonic-gate typedef void mdb_tgt_se_f(mdb_tgt_t *, int, void *); 433*7c478bd9Sstevel@tonic-gate extern void no_se_f(mdb_tgt_t *, int, void *); 434*7c478bd9Sstevel@tonic-gate 435*7c478bd9Sstevel@tonic-gate /* 436*7c478bd9Sstevel@tonic-gate * Breakpoints can be set at a specified virtual address or using MDB's 437*7c478bd9Sstevel@tonic-gate * symbol notation: 438*7c478bd9Sstevel@tonic-gate */ 439*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_add_vbrkpt(mdb_tgt_t *, uintptr_t, 440*7c478bd9Sstevel@tonic-gate int, mdb_tgt_se_f *, void *); 441*7c478bd9Sstevel@tonic-gate 442*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_add_sbrkpt(mdb_tgt_t *, const char *, 443*7c478bd9Sstevel@tonic-gate int, mdb_tgt_se_f *, void *); 444*7c478bd9Sstevel@tonic-gate 445*7c478bd9Sstevel@tonic-gate /* 446*7c478bd9Sstevel@tonic-gate * Watchpoints can be set at physical, virtual, or I/O port addresses for any 447*7c478bd9Sstevel@tonic-gate * combination of read, write, or execute operations. 448*7c478bd9Sstevel@tonic-gate */ 449*7c478bd9Sstevel@tonic-gate #define MDB_TGT_WA_R 0x1 /* Read watchpoint */ 450*7c478bd9Sstevel@tonic-gate #define MDB_TGT_WA_W 0x2 /* Write watchpoint */ 451*7c478bd9Sstevel@tonic-gate #define MDB_TGT_WA_X 0x4 /* Execute watchpoint */ 452*7c478bd9Sstevel@tonic-gate 453*7c478bd9Sstevel@tonic-gate #define MDB_TGT_WA_RWX (MDB_TGT_WA_R | MDB_TGT_WA_W | MDB_TGT_WA_X) 454*7c478bd9Sstevel@tonic-gate 455*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_add_pwapt(mdb_tgt_t *, physaddr_t, size_t, uint_t, 456*7c478bd9Sstevel@tonic-gate int, mdb_tgt_se_f *, void *); 457*7c478bd9Sstevel@tonic-gate 458*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_add_vwapt(mdb_tgt_t *, uintptr_t, size_t, uint_t, 459*7c478bd9Sstevel@tonic-gate int, mdb_tgt_se_f *, void *); 460*7c478bd9Sstevel@tonic-gate 461*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_add_iowapt(mdb_tgt_t *, uintptr_t, size_t, uint_t, 462*7c478bd9Sstevel@tonic-gate int, mdb_tgt_se_f *, void *); 463*7c478bd9Sstevel@tonic-gate 464*7c478bd9Sstevel@tonic-gate /* 465*7c478bd9Sstevel@tonic-gate * For user process debugging, tracepoints can be set on entry or exit from 466*7c478bd9Sstevel@tonic-gate * a system call, or on receipt of a software signal or fault. 467*7c478bd9Sstevel@tonic-gate */ 468*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_add_sysenter(mdb_tgt_t *, int, int, mdb_tgt_se_f *, void *); 469*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_add_sysexit(mdb_tgt_t *, int, int, mdb_tgt_se_f *, void *); 470*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_add_signal(mdb_tgt_t *, int, int, mdb_tgt_se_f *, void *); 471*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_add_fault(mdb_tgt_t *, int, int, mdb_tgt_se_f *, void *); 472*7c478bd9Sstevel@tonic-gate 473*7c478bd9Sstevel@tonic-gate /* 474*7c478bd9Sstevel@tonic-gate * Machine Register Interface 475*7c478bd9Sstevel@tonic-gate * 476*7c478bd9Sstevel@tonic-gate * The machine registers for a given thread can be manipulated using the 477*7c478bd9Sstevel@tonic-gate * getareg and putareg interface; the caller must know the naming convention 478*7c478bd9Sstevel@tonic-gate * for registers for the given target architecture. For the purposes of 479*7c478bd9Sstevel@tonic-gate * this interface, we declare the register container to be the largest 480*7c478bd9Sstevel@tonic-gate * current integer container. 481*7c478bd9Sstevel@tonic-gate */ 482*7c478bd9Sstevel@tonic-gate 483*7c478bd9Sstevel@tonic-gate typedef uint64_t mdb_tgt_reg_t; 484*7c478bd9Sstevel@tonic-gate 485*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_getareg(mdb_tgt_t *, mdb_tgt_tid_t, 486*7c478bd9Sstevel@tonic-gate const char *, mdb_tgt_reg_t *); 487*7c478bd9Sstevel@tonic-gate 488*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_putareg(mdb_tgt_t *, mdb_tgt_tid_t, 489*7c478bd9Sstevel@tonic-gate const char *, mdb_tgt_reg_t); 490*7c478bd9Sstevel@tonic-gate 491*7c478bd9Sstevel@tonic-gate /* 492*7c478bd9Sstevel@tonic-gate * Stack Interface 493*7c478bd9Sstevel@tonic-gate * 494*7c478bd9Sstevel@tonic-gate * The target stack interface provides the ability to iterate backward through 495*7c478bd9Sstevel@tonic-gate * the frames of an execution stack. For the purposes of this interface, the 496*7c478bd9Sstevel@tonic-gate * mdb_tgt_gregset (general purpose register set) is an opaque type: there must 497*7c478bd9Sstevel@tonic-gate * be an implicit contract between the target implementation and any debugger 498*7c478bd9Sstevel@tonic-gate * modules that must interpret the contents of this structure. The callback 499*7c478bd9Sstevel@tonic-gate * function is provided with the only elements of a stack frame which we can 500*7c478bd9Sstevel@tonic-gate * reasonably abstract: the virtual address corresponding to a program counter 501*7c478bd9Sstevel@tonic-gate * value, and an array of arguments passed to the function call represented by 502*7c478bd9Sstevel@tonic-gate * this frame. The rest of the frame is presumed to be contained within the 503*7c478bd9Sstevel@tonic-gate * mdb_tgt_gregset_t, and is architecture-specific. 504*7c478bd9Sstevel@tonic-gate */ 505*7c478bd9Sstevel@tonic-gate 506*7c478bd9Sstevel@tonic-gate typedef struct mdb_tgt_gregset mdb_tgt_gregset_t; 507*7c478bd9Sstevel@tonic-gate 508*7c478bd9Sstevel@tonic-gate typedef int mdb_tgt_stack_f(void *, uintptr_t, uint_t, const long *, 509*7c478bd9Sstevel@tonic-gate const mdb_tgt_gregset_t *); 510*7c478bd9Sstevel@tonic-gate typedef int mdb_tgt_stack_iter_f(mdb_tgt_t *, const mdb_tgt_gregset_t *, 511*7c478bd9Sstevel@tonic-gate mdb_tgt_stack_f *, void *); 512*7c478bd9Sstevel@tonic-gate 513*7c478bd9Sstevel@tonic-gate extern mdb_tgt_stack_iter_f mdb_tgt_stack_iter; 514*7c478bd9Sstevel@tonic-gate 515*7c478bd9Sstevel@tonic-gate /* 516*7c478bd9Sstevel@tonic-gate * External Data Interface 517*7c478bd9Sstevel@tonic-gate * 518*7c478bd9Sstevel@tonic-gate * The external data interface provides each target with the ability to export 519*7c478bd9Sstevel@tonic-gate * a set of named buffers that contain data which is associated with the 520*7c478bd9Sstevel@tonic-gate * target, but is somehow not accessible through one of its address spaces and 521*7c478bd9Sstevel@tonic-gate * does not correspond to a machine register. A process credential is an 522*7c478bd9Sstevel@tonic-gate * example of such a buffer: the credential is associated with the given 523*7c478bd9Sstevel@tonic-gate * process, but is stored in the kernel (not the process's address space) and 524*7c478bd9Sstevel@tonic-gate * thus is not accessible through any other target interface. Since it is 525*7c478bd9Sstevel@tonic-gate * exported via /proc, the user process target can export this information as a 526*7c478bd9Sstevel@tonic-gate * named buffer for target-specific dcmds to consume. 527*7c478bd9Sstevel@tonic-gate */ 528*7c478bd9Sstevel@tonic-gate 529*7c478bd9Sstevel@tonic-gate typedef int mdb_tgt_xdata_f(void *, const char *, const char *, size_t); 530*7c478bd9Sstevel@tonic-gate 531*7c478bd9Sstevel@tonic-gate extern int mdb_tgt_xdata_iter(mdb_tgt_t *, mdb_tgt_xdata_f *, void *); 532*7c478bd9Sstevel@tonic-gate extern ssize_t mdb_tgt_getxdata(mdb_tgt_t *, const char *, void *, size_t); 533*7c478bd9Sstevel@tonic-gate 534*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 535*7c478bd9Sstevel@tonic-gate } 536*7c478bd9Sstevel@tonic-gate #endif 537*7c478bd9Sstevel@tonic-gate 538*7c478bd9Sstevel@tonic-gate #endif /* _MDB_TARGET_H */ 539