/* Common definitions for remote server for GDB.
Copyright (C) 1993, 1995, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005,
- 2006, 2007, 2008 Free Software Foundation, Inc.
+ 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GDB.
#endif
#endif
+#if !HAVE_DECL_MEMMEM
+extern void *memmem (const void *, size_t , const void *, size_t);
+#endif
+
#ifndef ATTR_NORETURN
#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
#define ATTR_NORETURN __attribute__ ((noreturn))
#endif
#endif
+#ifndef ATTR_MALLOC
+#if defined(__GNUC__) && (__GNUC__ >= 3)
+#define ATTR_MALLOC __attribute__ ((__malloc__))
+#else
+#define ATTR_MALLOC /* nothing */
+#endif
+#endif
+
/* A type used for binary buffers. */
typedef unsigned char gdb_byte;
least the size of a (void *). */
typedef long long CORE_ADDR;
+typedef long long LONGEST;
+typedef unsigned long long ULONGEST;
+
+/* The ptid struct is a collection of the various "ids" necessary
+ for identifying the inferior. This consists of the process id
+ (pid), thread id (tid), and other fields necessary for uniquely
+ identifying the inferior process/thread being debugged. When
+ manipulating ptids, the constructors, accessors, and predicate
+ declared in server.h should be used. These are as follows:
+
+ ptid_build - Make a new ptid from a pid, lwp, and tid.
+ pid_to_ptid - Make a new ptid from just a pid.
+ ptid_get_pid - Fetch the pid component of a ptid.
+ ptid_get_lwp - Fetch the lwp component of a ptid.
+ ptid_get_tid - Fetch the tid component of a ptid.
+ ptid_equal - Test to see if two ptids are equal.
+
+ Please do NOT access the struct ptid members directly (except, of
+ course, in the implementation of the above ptid manipulation
+ functions). */
+
+struct ptid
+ {
+ /* Process id */
+ int pid;
+
+ /* Lightweight process id */
+ long lwp;
+
+ /* Thread id */
+ long tid;
+ };
+
+typedef struct ptid ptid_t;
+
+/* The -1 ptid, often used to indicate either an error condition or a
+ "don't care" condition, i.e, "run all threads". */
+extern ptid_t minus_one_ptid;
+
+/* The null or zero ptid, often used to indicate no process. */
+extern ptid_t null_ptid;
+
+/* Attempt to find and return an existing ptid with the given PID,
+ LWP, and TID components. If none exists, create a new one and
+ return that. */
+ptid_t ptid_build (int pid, long lwp, long tid);
+
+/* Create a ptid from just a pid. */
+ptid_t pid_to_ptid (int pid);
+
+/* Fetch the pid (process id) component from a ptid. */
+int ptid_get_pid (ptid_t ptid);
+
+/* Fetch the lwp (lightweight process) component from a ptid. */
+long ptid_get_lwp (ptid_t ptid);
+
+/* Fetch the tid (thread id) component from a ptid. */
+long ptid_get_tid (ptid_t ptid);
+
+/* Compare two ptids to see if they are equal. */
+extern int ptid_equal (ptid_t p1, ptid_t p2);
+
+/* Return true if this ptid represents a process id. */
+extern int ptid_is_pid (ptid_t ptid);
+
/* Generic information for tracking a list of ``inferiors'' - threads,
processes, etc. */
struct inferior_list
};
struct inferior_list_entry
{
- unsigned long id;
+ ptid_t id;
struct inferior_list_entry *next;
};
-/* Opaque type for user-visible threads. */
struct thread_info;
+struct process_info;
+struct regcache;
+
+#include "regcache.h"
+#include "gdb/signals.h"
+#include "gdb_signals.h"
+#include "target.h"
+#include "mem-break.h"
+
+struct thread_info
+{
+ struct inferior_list_entry entry;
+ void *target_data;
+ void *regcache_data;
+
+ /* The last resume GDB requested on this thread. */
+ enum resume_kind last_resume_kind;
+
+ /* The last wait status reported for this thread. */
+ struct target_waitstatus last_status;
+
+ /* Given `while-stepping', a thread may be collecting data for more
+ than one tracepoint simultaneously. E.g.:
+
+ ff0001 INSN1 <-- TP1, while-stepping 10 collect $regs
+ ff0002 INSN2
+ ff0003 INSN3 <-- TP2, collect $regs
+ ff0004 INSN4 <-- TP3, while-stepping 10 collect $regs
+ ff0005 INSN5
+
+ Notice that when instruction INSN5 is reached, the while-stepping
+ actions of both TP1 and TP3 are still being collected, and that TP2
+ had been collected meanwhile. The whole range of ff0001-ff0005
+ should be single-stepped, due to at least TP1's while-stepping
+ action covering the whole range.
+
+ On the other hand, the same tracepoint with a while-stepping action
+ may be hit by more than one thread simultaneously, hence we can't
+ keep the current step count in the tracepoint itself.
+
+ This is the head of the list of the states of `while-stepping'
+ tracepoint actions this thread is now collecting; NULL if empty.
+ Each item in the list holds the current step of the while-stepping
+ action. */
+ struct wstep_state *while_stepping;
+};
struct dll_info
{
CORE_ADDR base_addr;
};
-#include "regcache.h"
-#include "gdb/signals.h"
+struct sym_cache;
+struct breakpoint;
+struct raw_breakpoint;
+struct process_info_private;
-#include "target.h"
-#include "mem-break.h"
+struct process_info
+{
+ struct inferior_list_entry head;
+
+ /* Nonzero if this child process was attached rather than
+ spawned. */
+ int attached;
+
+ /* True if GDB asked us to detach from this process, but we remained
+ attached anyway. */
+ int gdb_detached;
+
+ /* The symbol cache. */
+ struct sym_cache *symbol_cache;
+
+ /* If this flag has been set, assume symbol cache misses are
+ failures. */
+ int all_symbols_looked_up;
+
+ /* The list of memory breakpoints. */
+ struct breakpoint *breakpoints;
+
+ /* The list of raw memory breakpoints. */
+ struct raw_breakpoint *raw_breakpoints;
+
+ /* Private target data. */
+ struct process_info_private *private;
+};
+
+/* Return a pointer to the process that corresponds to the current
+ thread (current_inferior). It is an error to call this if there is
+ no current thread selected. */
+
+struct process_info *current_process (void);
+struct process_info *get_thread_process (struct thread_info *);
/* Target-specific functions */
/* From inferiors.c. */
+extern struct inferior_list all_processes;
extern struct inferior_list all_threads;
extern struct inferior_list all_dlls;
extern int dlls_changed;
+void initialize_inferiors (void);
+
void add_inferior_to_list (struct inferior_list *list,
struct inferior_list_entry *new_inferior);
void for_each_inferior (struct inferior_list *list,
void (*action) (struct inferior_list_entry *));
+
extern struct thread_info *current_inferior;
void remove_inferior (struct inferior_list *list,
struct inferior_list_entry *entry);
void remove_thread (struct thread_info *thread);
-void add_thread (unsigned long thread_id, void *target_data, unsigned int);
-unsigned int thread_id_to_gdb_id (unsigned long);
-unsigned int thread_to_gdb_id (struct thread_info *);
-unsigned long gdb_id_to_thread_id (unsigned int);
+void add_thread (ptid_t ptid, void *target_data);
+
+struct process_info *add_process (int pid, int attached);
+void remove_process (struct process_info *process);
+struct process_info *find_process_pid (int pid);
+int have_started_inferiors_p (void);
+int have_attached_inferiors_p (void);
+
+struct thread_info *find_thread_ptid (ptid_t ptid);
+
+ptid_t thread_id_to_gdb_id (ptid_t);
+ptid_t thread_to_gdb_id (struct thread_info *);
+ptid_t gdb_id_to_thread_id (ptid_t);
struct thread_info *gdb_id_to_thread (unsigned int);
void clear_inferiors (void);
struct inferior_list_entry *find_inferior
void *),
void *arg);
struct inferior_list_entry *find_inferior_id (struct inferior_list *list,
- unsigned long id);
+ ptid_t id);
void *inferior_target_data (struct thread_info *);
void set_inferior_target_data (struct thread_info *, void *);
void *inferior_regcache_data (struct thread_info *);
/* Public variables in server.c */
-extern unsigned long cont_thread;
-extern unsigned long general_thread;
-extern unsigned long step_thread;
-extern unsigned long thread_from_wait;
-extern unsigned long old_thread_from_wait;
+extern ptid_t cont_thread;
+extern ptid_t general_thread;
+extern ptid_t step_thread;
+
extern int server_waiting;
extern int debug_threads;
+extern int debug_hw_points;
extern int pass_signals[];
extern jmp_buf toplevel;
+extern int disable_packet_vCont;
+extern int disable_packet_Tthread;
+extern int disable_packet_qC;
+extern int disable_packet_qfThreadInfo;
+
+extern int multi_process;
+extern int non_stop;
+
+/* Functions from event-loop.c. */
+typedef void *gdb_client_data;
+typedef int (handler_func) (int, gdb_client_data);
+
+extern void delete_file_handler (int fd);
+extern void add_file_handler (int fd, handler_func *proc,
+ gdb_client_data client_data);
+
+extern void start_event_loop (void);
+
+/* Functions from server.c. */
+extern int handle_serial_event (int err, gdb_client_data client_data);
+extern int handle_target_event (int err, gdb_client_data client_data);
+
+extern void push_event (ptid_t ptid, struct target_waitstatus *status);
+
/* Functions from hostio.c. */
extern int handle_vFile (char *, int, int *);
extern int remote_debug;
extern int all_symbols_looked_up;
+extern int noack_mode;
+extern int transport_is_reliable;
+
+int gdb_connected (void);
+
+ptid_t read_ptid (char *buf, char **obuf);
+char *write_ptid (char *buf, ptid_t ptid);
int putpkt (char *buf);
int putpkt_binary (char *buf, int len);
+int putpkt_notif (char *buf);
int getpkt (char *buf);
void remote_open (char *name);
void remote_close (void);
void convert_int_to_ascii (unsigned char *from, char *to, int n);
void new_thread_notify (int id);
void dead_thread_notify (int id);
-void prepare_resume_reply (char *buf, char status, unsigned char sig);
+void prepare_resume_reply (char *buf, ptid_t ptid,
+ struct target_waitstatus *status);
const char *decode_address_to_semicolon (CORE_ADDR *addrp, const char *start);
void decode_address (CORE_ADDR *addrp, const char *start, int len);
int decode_xfer_write (char *buf, int packet_len, char **annex,
CORE_ADDR *offset, unsigned int *len,
unsigned char *data);
+int decode_search_memory_packet (const char *buf, int packet_len,
+ CORE_ADDR *start_addrp,
+ CORE_ADDR *search_space_lenp,
+ gdb_byte *pattern, unsigned int *pattern_lenp);
int unhexify (char *bin, const char *hex, int count);
int hexify (char *hex, const char *bin, int count);
int remote_escape_output (const gdb_byte *buffer, int len,
gdb_byte *out_buf, int *out_len,
int out_maxlen);
+char *unpack_varlen_hex (char *buff, ULONGEST *result);
+void clear_symbol_cache (struct sym_cache **symcache_p);
int look_up_one_symbol (const char *name, CORE_ADDR *addrp);
void monitor_output (const char *msg);
char *xml_escape_text (const char *text);
-/* Functions from ``signals.c''. */
-enum target_signal target_signal_from_host (int hostsig);
-int target_signal_to_host_p (enum target_signal oursig);
-int target_signal_to_host (enum target_signal oursig);
-char *target_signal_to_name (enum target_signal);
+/* Simple growing buffer. */
+
+struct buffer
+{
+ char *buffer;
+ size_t buffer_size; /* allocated size */
+ size_t used_size; /* actually used size */
+};
+
+/* Append DATA of size SIZE to the end of BUFFER. Grows the buffer to
+ accommodate the new data. */
+void buffer_grow (struct buffer *buffer, const char *data, size_t size);
+
+/* Release any memory held by BUFFER. */
+void buffer_free (struct buffer *buffer);
+
+/* Initialize BUFFER. BUFFER holds no memory afterwards. */
+void buffer_init (struct buffer *buffer);
+
+/* Return a pointer into BUFFER data, effectivelly transfering
+ ownership of the buffer memory to the caller. Calling buffer_free
+ afterwards has no effect on the returned data. */
+char* buffer_finish (struct buffer *buffer);
+
+/* Simple printf to BUFFER function. Current implemented formatters:
+ %s - grow an xml escaped text in OBSTACK. */
+void buffer_xml_printf (struct buffer *buffer, const char *format, ...)
+ ATTR_FORMAT (printf, 2, 3);;
+
+#define buffer_grow_str(BUFFER,STRING) \
+ buffer_grow (BUFFER, STRING, strlen (STRING))
+#define buffer_grow_str0(BUFFER,STRING) \
+ buffer_grow (BUFFER, STRING, strlen (STRING) + 1)
/* Functions from utils.c */
-void perror_with_name (char *string);
+void *xmalloc (size_t) ATTR_MALLOC;
+void *xrealloc (void *, size_t);
+void *xcalloc (size_t, size_t) ATTR_MALLOC;
+char *xstrdup (const char *) ATTR_MALLOC;
+void freeargv (char **argv);
+void perror_with_name (const char *string);
void error (const char *string,...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
void fatal (const char *string,...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
+void internal_error (const char *file, int line, const char *, ...)
+ ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
void warning (const char *string,...) ATTR_FORMAT (printf, 1, 2);
+char *paddress (CORE_ADDR addr);
+char *pulongest (ULONGEST u);
+char *plongest (LONGEST l);
+char *phex_nz (ULONGEST l, int sizeof_l);
+
+#define gdb_assert(expr) \
+ ((void) ((expr) ? 0 : \
+ (gdb_assert_fail (#expr, __FILE__, __LINE__, ASSERT_FUNCTION), 0)))
+
+/* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
+ which contains the name of the function currently being defined.
+ This is broken in G++ before version 2.6.
+ C9x has a similar variable called __func__, but prefer the GCC one since
+ it demangles C++ function names. */
+#if (GCC_VERSION >= 2004)
+#define ASSERT_FUNCTION __PRETTY_FUNCTION__
+#else
+#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
+#define ASSERT_FUNCTION __func__
+#endif
+#endif
+
+/* This prints an "Assertion failed" message, and exits. */
+#if defined (ASSERT_FUNCTION)
+#define gdb_assert_fail(assertion, file, line, function) \
+ internal_error (file, line, "%s: Assertion `%s' failed.", \
+ function, assertion)
+#else
+#define gdb_assert_fail(assertion, file, line, function) \
+ internal_error (file, line, "Assertion `%s' failed.", \
+ assertion)
+#endif
/* Maximum number of bytes to read/write at once. The value here
is chosen to fill up a packet (the headers account for the 32). */
as large as the largest register set supported by gdbserver. */
#define PBUFSIZ 16384
+/* Functions from tracepoint.c */
+
+void initialize_tracepoint (void);
+
+extern int tracing;
+extern int disconnected_tracing;
+
+void stop_tracing (void);
+
+int handle_tracepoint_general_set (char *own_buf);
+int handle_tracepoint_query (char *own_buf);
+
+int tracepoint_finished_step (struct thread_info *tinfo, CORE_ADDR stop_pc);
+int tracepoint_was_hit (struct thread_info *tinfo, CORE_ADDR stop_pc);
+
+void release_while_stepping_state_list (struct thread_info *tinfo);
+
+extern int current_traceframe;
+
+int in_readonly_region (CORE_ADDR addr, ULONGEST length);
+int traceframe_read_mem (int tfnum, CORE_ADDR addr,
+ unsigned char *buf, ULONGEST length,
+ ULONGEST *nbytes);
+int fetch_traceframe_registers (int tfnum,
+ struct regcache *regcache,
+ int regnum);
+
/* Version information, from version.c. */
extern const char version[];
extern const char host_name[];
projects / deliverable / binutils-gdb.git / blobdiff