xref: /titanic_44/usr/src/cmd/mdb/common/kmdb/kvm.h (revision 18c2aff776a775d34a4c9893a4c72e0434d68e36)
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  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _KVM_H
27 #define	_KVM_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 /*
32  * The kmdb target
33  */
34 
35 #include <mdb/mdb_modapi.h>
36 #include <mdb/mdb_target.h>
37 #include <kmdb/kmdb_dpi.h>
38 #include <kmdb/kvm_isadep.h>
39 #include <kmdb/kvm_cpu.h>
40 
41 #include <sys/kobj.h>
42 
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46 
47 #define	KM_F_PRIMARY		1
48 
49 #define	KMT_TRAP_NOTENUM	-1	/* Glob for unnamed traps */
50 #define	KMT_TRAP_ALL		-2	/* Glob for all traps */
51 
52 typedef struct kmt_module {
53 	mdb_list_t	km_list;	/* List forward/back pointers */
54 	char		*km_name;	/* Module name */
55 	char		km_seen;
56 	GElf_Ehdr	km_ehdr;
57 
58 	mdb_gelf_symtab_t *km_symtab;
59 	Shdr		km_symtab_hdr;
60 	Shdr		km_strtab_hdr;
61 	const void	*km_symtab_va;
62 	const void	*km_strtab_va;
63 
64 	uintptr_t	km_text_va;
65 	size_t		km_text_size;
66 	uintptr_t	km_data_va;
67 	size_t		km_data_size;
68 	uintptr_t	km_bss_va;
69 	size_t		km_bss_size;
70 	const void	*km_ctf_va;
71 	size_t		km_ctf_size;
72 
73 	ctf_file_t	*km_ctfp;
74 	struct modctl	km_modctl;
75 	struct module	km_module;
76 	int		km_flags;
77 } kmt_module_t;
78 
79 typedef struct kmt_data {
80 	const mdb_tgt_regdesc_t	*kmt_rds;	/* Register description table */
81 	mdb_nv_t	kmt_modules;		/* Hash table of modules */
82 	mdb_list_t	kmt_modlist;		/* List of mods in load order */
83 	caddr_t		kmt_writemap;		/* Used to map PAs for writes */
84 	size_t		kmt_writemapsz;		/* Size of same */
85 	mdb_map_t	kmt_map;		/* Persistant map for callers */
86 	ulong_t		*kmt_trapmap;
87 	size_t		kmt_trapmax;
88 	kmt_cpu_t	*kmt_cpu;		/* CPU-specific plugin */
89 	int		kmt_cpu_retry;		/* Try CPU detect again? */
90 	int		kmt_symavail;		/* Symbol resolution allowed */
91 	uint_t		kmt_narmedbpts;		/* Number of armed brkpts */
92 #if defined(__i386) || defined(__amd64)
93 	struct {
94 		GElf_Sym	_kmt_cmnint;
95 		GElf_Sym	_kmt_cmntrap;
96 		GElf_Sym	_kmt_sysenter;
97 		GElf_Sym	_kmt_brand_sysenter;
98 #if defined(__amd64)
99 		GElf_Sym	_kmt_syscall;
100 		GElf_Sym	_kmt_brand_syscall;
101 #endif
102 	} kmt_intrsyms;
103 #endif
104 } kmt_data_t;
105 
106 #if defined(__i386) || defined(__amd64)
107 #define	kmt_cmnint	kmt_intrsyms._kmt_cmnint
108 #define	kmt_cmntrap	kmt_intrsyms._kmt_cmntrap
109 #endif
110 
111 typedef struct kmt_defbp {
112 	mdb_list_t dbp_bplist;
113 	char *dbp_objname;
114 	char *dbp_symname;
115 	int dbp_ref;
116 } kmt_defbp_t;
117 
118 typedef struct kmt_brkpt {
119 	uintptr_t kb_addr;			/* Breakpoint address */
120 	mdb_instr_t kb_oinstr;			/* Replaced instruction */
121 } kmt_brkpt_t;
122 
123 typedef struct kmt_bparg {
124 	uintptr_t ka_addr;			/* Explicit address */
125 	char *ka_symbol;			/* Symbolic name */
126 	kmt_defbp_t *ka_defbp;
127 } kmt_bparg_t;
128 
129 extern void kmt_printregs(const mdb_tgt_gregset_t *gregs);
130 
131 extern const char *kmt_def_dismode(void);
132 
133 extern void kmt_init_isadep(mdb_tgt_t *);
134 extern void kmt_startup_isadep(mdb_tgt_t *);
135 
136 extern ssize_t kmt_write(mdb_tgt_t *, const void *, size_t, uintptr_t);
137 extern ssize_t kmt_pwrite(mdb_tgt_t *, const void *, size_t, physaddr_t);
138 extern ssize_t kmt_rw(mdb_tgt_t *, void *, size_t, uint64_t,
139     ssize_t (*)(void *, size_t, uint64_t));
140 extern ssize_t kmt_writer(void *, size_t, uint64_t);
141 extern ssize_t kmt_ioread(mdb_tgt_t *, void *, size_t, uintptr_t);
142 extern ssize_t kmt_iowrite(mdb_tgt_t *, const void *, size_t, uintptr_t);
143 
144 extern int kmt_step_out(mdb_tgt_t *, uintptr_t *);
145 extern int kmt_step_branch(mdb_tgt_t *);
146 extern int kmt_next(mdb_tgt_t *, uintptr_t *);
147 
148 extern int kmt_stack(uintptr_t, uint_t, int, const mdb_arg_t *);
149 extern int kmt_stackv(uintptr_t, uint_t, int, const mdb_arg_t *);
150 extern int kmt_stackr(uintptr_t, uint_t, int, const mdb_arg_t *);
151 extern int kmt_cpustack(uintptr_t, uint_t, int, const mdb_arg_t *, int, int);
152 
153 extern const char *kmt_trapname(int);
154 
155 #ifdef __cplusplus
156 }
157 #endif
158 
159 #endif /* _KVM_H */
160