~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/kernel/debug/kdb/kdb_private.h

Version: ~ [ linux-5.10-rc5 ] ~ [ linux-5.9.10 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.79 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.159 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.208 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.245 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.245 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 #ifndef _KDBPRIVATE_H
  2 #define _KDBPRIVATE_H
  3 
  4 /*
  5  * Kernel Debugger Architecture Independent Private Headers
  6  *
  7  * This file is subject to the terms and conditions of the GNU General Public
  8  * License.  See the file "COPYING" in the main directory of this archive
  9  * for more details.
 10  *
 11  * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
 12  * Copyright (c) 2009 Wind River Systems, Inc.  All Rights Reserved.
 13  */
 14 
 15 #include <linux/kgdb.h>
 16 #include "../debug_core.h"
 17 
 18 /* Kernel Debugger Command codes.  Must not overlap with error codes. */
 19 #define KDB_CMD_GO      (-1001)
 20 #define KDB_CMD_CPU     (-1002)
 21 #define KDB_CMD_SS      (-1003)
 22 #define KDB_CMD_KGDB (-1005)
 23 
 24 /* Internal debug flags */
 25 #define KDB_DEBUG_FLAG_BP       0x0002  /* Breakpoint subsystem debug */
 26 #define KDB_DEBUG_FLAG_BB_SUMM  0x0004  /* Basic block analysis, summary only */
 27 #define KDB_DEBUG_FLAG_AR       0x0008  /* Activation record, generic */
 28 #define KDB_DEBUG_FLAG_ARA      0x0010  /* Activation record, arch specific */
 29 #define KDB_DEBUG_FLAG_BB       0x0020  /* All basic block analysis */
 30 #define KDB_DEBUG_FLAG_STATE    0x0040  /* State flags */
 31 #define KDB_DEBUG_FLAG_MASK     0xffff  /* All debug flags */
 32 #define KDB_DEBUG_FLAG_SHIFT    16      /* Shift factor for dbflags */
 33 
 34 #define KDB_DEBUG(flag) (kdb_flags & \
 35         (KDB_DEBUG_FLAG_##flag << KDB_DEBUG_FLAG_SHIFT))
 36 #define KDB_DEBUG_STATE(text, value) if (KDB_DEBUG(STATE)) \
 37                 kdb_print_state(text, value)
 38 
 39 #if BITS_PER_LONG == 32
 40 
 41 #define KDB_PLATFORM_ENV        "BYTESPERWORD=4"
 42 
 43 #define kdb_machreg_fmt         "0x%lx"
 44 #define kdb_machreg_fmt0        "0x%08lx"
 45 #define kdb_bfd_vma_fmt         "0x%lx"
 46 #define kdb_bfd_vma_fmt0        "0x%08lx"
 47 #define kdb_elfw_addr_fmt       "0x%x"
 48 #define kdb_elfw_addr_fmt0      "0x%08x"
 49 #define kdb_f_count_fmt         "%d"
 50 
 51 #elif BITS_PER_LONG == 64
 52 
 53 #define KDB_PLATFORM_ENV        "BYTESPERWORD=8"
 54 
 55 #define kdb_machreg_fmt         "0x%lx"
 56 #define kdb_machreg_fmt0        "0x%016lx"
 57 #define kdb_bfd_vma_fmt         "0x%lx"
 58 #define kdb_bfd_vma_fmt0        "0x%016lx"
 59 #define kdb_elfw_addr_fmt       "0x%x"
 60 #define kdb_elfw_addr_fmt0      "0x%016x"
 61 #define kdb_f_count_fmt         "%ld"
 62 
 63 #endif
 64 
 65 /*
 66  * KDB_MAXBPT describes the total number of breakpoints
 67  * supported by this architecure.
 68  */
 69 #define KDB_MAXBPT      16
 70 
 71 /* Symbol table format returned by kallsyms. */
 72 typedef struct __ksymtab {
 73                 unsigned long value;    /* Address of symbol */
 74                 const char *mod_name;   /* Module containing symbol or
 75                                          * "kernel" */
 76                 unsigned long mod_start;
 77                 unsigned long mod_end;
 78                 const char *sec_name;   /* Section containing symbol */
 79                 unsigned long sec_start;
 80                 unsigned long sec_end;
 81                 const char *sym_name;   /* Full symbol name, including
 82                                          * any version */
 83                 unsigned long sym_start;
 84                 unsigned long sym_end;
 85                 } kdb_symtab_t;
 86 extern int kallsyms_symbol_next(char *prefix_name, int flag);
 87 extern int kallsyms_symbol_complete(char *prefix_name, int max_len);
 88 
 89 /* Exported Symbols for kernel loadable modules to use. */
 90 extern int kdb_getarea_size(void *, unsigned long, size_t);
 91 extern int kdb_putarea_size(unsigned long, void *, size_t);
 92 
 93 /*
 94  * Like get_user and put_user, kdb_getarea and kdb_putarea take variable
 95  * names, not pointers.  The underlying *_size functions take pointers.
 96  */
 97 #define kdb_getarea(x, addr) kdb_getarea_size(&(x), addr, sizeof((x)))
 98 #define kdb_putarea(addr, x) kdb_putarea_size(addr, &(x), sizeof((x)))
 99 
100 extern int kdb_getphysword(unsigned long *word,
101                         unsigned long addr, size_t size);
102 extern int kdb_getword(unsigned long *, unsigned long, size_t);
103 extern int kdb_putword(unsigned long, unsigned long, size_t);
104 
105 extern int kdbgetularg(const char *, unsigned long *);
106 extern int kdbgetu64arg(const char *, u64 *);
107 extern char *kdbgetenv(const char *);
108 extern int kdbgetaddrarg(int, const char **, int*, unsigned long *,
109                          long *, char **);
110 extern int kdbgetsymval(const char *, kdb_symtab_t *);
111 extern int kdbnearsym(unsigned long, kdb_symtab_t *);
112 extern void kdbnearsym_cleanup(void);
113 extern char *kdb_strdup(const char *str, gfp_t type);
114 extern void kdb_symbol_print(unsigned long, const kdb_symtab_t *, unsigned int);
115 
116 /* Routine for debugging the debugger state. */
117 extern void kdb_print_state(const char *, int);
118 
119 extern int kdb_state;
120 #define KDB_STATE_KDB           0x00000001      /* Cpu is inside kdb */
121 #define KDB_STATE_LEAVING       0x00000002      /* Cpu is leaving kdb */
122 #define KDB_STATE_CMD           0x00000004      /* Running a kdb command */
123 #define KDB_STATE_KDB_CONTROL   0x00000008      /* This cpu is under
124                                                  * kdb control */
125 #define KDB_STATE_HOLD_CPU      0x00000010      /* Hold this cpu inside kdb */
126 #define KDB_STATE_DOING_SS      0x00000020      /* Doing ss command */
127 #define KDB_STATE_SSBPT         0x00000080      /* Install breakpoint
128                                                  * after one ss, independent of
129                                                  * DOING_SS */
130 #define KDB_STATE_REENTRY       0x00000100      /* Valid re-entry into kdb */
131 #define KDB_STATE_SUPPRESS      0x00000200      /* Suppress error messages */
132 #define KDB_STATE_PAGER         0x00000400      /* pager is available */
133 #define KDB_STATE_GO_SWITCH     0x00000800      /* go is switching
134                                                  * back to initial cpu */
135 #define KDB_STATE_WAIT_IPI      0x00002000      /* Waiting for kdb_ipi() NMI */
136 #define KDB_STATE_RECURSE       0x00004000      /* Recursive entry to kdb */
137 #define KDB_STATE_IP_ADJUSTED   0x00008000      /* Restart IP has been
138                                                  * adjusted */
139 #define KDB_STATE_GO1           0x00010000      /* go only releases one cpu */
140 #define KDB_STATE_KEYBOARD      0x00020000      /* kdb entered via
141                                                  * keyboard on this cpu */
142 #define KDB_STATE_KEXEC         0x00040000      /* kexec issued */
143 #define KDB_STATE_DOING_KGDB    0x00080000      /* kgdb enter now issued */
144 #define KDB_STATE_KGDB_TRANS    0x00200000      /* Transition to kgdb */
145 #define KDB_STATE_ARCH          0xff000000      /* Reserved for arch
146                                                  * specific use */
147 
148 #define KDB_STATE(flag) (kdb_state & KDB_STATE_##flag)
149 #define KDB_STATE_SET(flag) ((void)(kdb_state |= KDB_STATE_##flag))
150 #define KDB_STATE_CLEAR(flag) ((void)(kdb_state &= ~KDB_STATE_##flag))
151 
152 extern int kdb_nextline; /* Current number of lines displayed */
153 
154 typedef struct _kdb_bp {
155         unsigned long   bp_addr;        /* Address breakpoint is present at */
156         unsigned int    bp_free:1;      /* This entry is available */
157         unsigned int    bp_enabled:1;   /* Breakpoint is active in register */
158         unsigned int    bp_type:4;      /* Uses hardware register */
159         unsigned int    bp_installed:1; /* Breakpoint is installed */
160         unsigned int    bp_delay:1;     /* Do delayed bp handling */
161         unsigned int    bp_delayed:1;   /* Delayed breakpoint */
162         unsigned int    bph_length;     /* HW break length */
163 } kdb_bp_t;
164 
165 #ifdef CONFIG_KGDB_KDB
166 extern kdb_bp_t kdb_breakpoints[/* KDB_MAXBPT */];
167 
168 /* The KDB shell command table */
169 typedef struct _kdbtab {
170         char    *cmd_name;              /* Command name */
171         kdb_func_t cmd_func;            /* Function to execute command */
172         char    *cmd_usage;             /* Usage String for this command */
173         char    *cmd_help;              /* Help message for this command */
174         short    cmd_minlen;            /* Minimum legal # command
175                                          * chars required */
176         kdb_cmdflags_t cmd_flags;       /* Command behaviour flags */
177 } kdbtab_t;
178 
179 extern int kdb_bt(int, const char **);  /* KDB display back trace */
180 
181 /* KDB breakpoint management functions */
182 extern void kdb_initbptab(void);
183 extern void kdb_bp_install(struct pt_regs *);
184 extern void kdb_bp_remove(void);
185 
186 typedef enum {
187         KDB_DB_BPT,     /* Breakpoint */
188         KDB_DB_SS,      /* Single-step trap */
189         KDB_DB_SSBPT,   /* Single step over breakpoint */
190         KDB_DB_NOBPT    /* Spurious breakpoint */
191 } kdb_dbtrap_t;
192 
193 extern int kdb_main_loop(kdb_reason_t, kdb_reason_t,
194                          int, kdb_dbtrap_t, struct pt_regs *);
195 
196 /* Miscellaneous functions and data areas */
197 extern int kdb_grepping_flag;
198 #define KDB_GREPPING_FLAG_SEARCH 0x8000
199 extern char kdb_grep_string[];
200 #define KDB_GREP_STRLEN 256
201 extern int kdb_grep_leading;
202 extern int kdb_grep_trailing;
203 extern char *kdb_cmds[];
204 extern unsigned long kdb_task_state_string(const char *);
205 extern char kdb_task_state_char (const struct task_struct *);
206 extern unsigned long kdb_task_state(const struct task_struct *p,
207                                     unsigned long mask);
208 extern void kdb_ps_suppressed(void);
209 extern void kdb_ps1(const struct task_struct *p);
210 extern void kdb_print_nameval(const char *name, unsigned long val);
211 extern void kdb_send_sig_info(struct task_struct *p, struct siginfo *info);
212 extern void kdb_meminfo_proc_show(void);
213 extern char *kdb_getstr(char *, size_t, const char *);
214 extern void kdb_gdb_state_pass(char *buf);
215 
216 /* Defines for kdb_symbol_print */
217 #define KDB_SP_SPACEB   0x0001          /* Space before string */
218 #define KDB_SP_SPACEA   0x0002          /* Space after string */
219 #define KDB_SP_PAREN    0x0004          /* Parenthesis around string */
220 #define KDB_SP_VALUE    0x0008          /* Print the value of the address */
221 #define KDB_SP_SYMSIZE  0x0010          /* Print the size of the symbol */
222 #define KDB_SP_NEWLINE  0x0020          /* Newline after string */
223 #define KDB_SP_DEFAULT (KDB_SP_VALUE|KDB_SP_PAREN)
224 
225 #define KDB_TSK(cpu) kgdb_info[cpu].task
226 #define KDB_TSKREGS(cpu) kgdb_info[cpu].debuggerinfo
227 
228 extern struct task_struct *kdb_curr_task(int);
229 
230 #define kdb_task_has_cpu(p) (task_curr(p))
231 
232 /* Simplify coexistence with NPTL */
233 #define kdb_do_each_thread(g, p) do_each_thread(g, p)
234 #define kdb_while_each_thread(g, p) while_each_thread(g, p)
235 
236 #define GFP_KDB (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL)
237 
238 extern void *debug_kmalloc(size_t size, gfp_t flags);
239 extern void debug_kfree(void *);
240 extern void debug_kusage(void);
241 
242 extern void kdb_set_current_task(struct task_struct *);
243 extern struct task_struct *kdb_current_task;
244 
245 #ifdef CONFIG_KDB_KEYBOARD
246 extern void kdb_kbd_cleanup_state(void);
247 #else /* ! CONFIG_KDB_KEYBOARD */
248 #define kdb_kbd_cleanup_state()
249 #endif /* ! CONFIG_KDB_KEYBOARD */
250 
251 #ifdef CONFIG_MODULES
252 extern struct list_head *kdb_modules;
253 #endif /* CONFIG_MODULES */
254 
255 extern char kdb_prompt_str[];
256 
257 #define KDB_WORD_SIZE   ((int)sizeof(unsigned long))
258 
259 #endif /* CONFIG_KGDB_KDB */
260 #endif  /* !_KDBPRIVATE_H */
261 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp