X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fgdbserver%2Fserver.h;h=02dfa292beeb596fafddae1973653bba4a1dc9c0;hb=b09846a918b74f0371149f730f8b391548b11a8d;hp=ea7666e7a4cda66d6f3f5e3963f08e746d5bd0f9;hpb=255e7678a93693bd4d16cc3246442a1b8e11064e;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/gdbserver/server.h b/gdb/gdbserver/server.h index ea7666e7a4..02dfa292be 100644 --- a/gdb/gdbserver/server.h +++ b/gdb/gdbserver/server.h @@ -1,12 +1,12 @@ /* Common definitions for remote server for GDB. - Copyright (C) 1993, 1995, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, - 2006, 2007 Free Software Foundation, Inc. + Copyright (C) 1993, 1995, 1997-2000, 2002-2012 Free Software + Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -15,9 +15,7 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. */ + along with this program. If not, see . */ #ifndef SERVER_H #define SERVER_H @@ -40,6 +38,15 @@ #include #endif +#ifdef HAVE_ALLOCA_H +#include +#endif +/* On some systems such as MinGW, alloca is declared in malloc.h + (there is no alloca.h). */ +#if HAVE_MALLOC_H +#include +#endif + #if !HAVE_DECL_STRERROR #ifndef strerror extern char *strerror (int); /* X3.159-1989 4.11.6.2 */ @@ -52,8 +59,16 @@ extern void perror (const char *); #endif #endif +#if !HAVE_DECL_VASPRINTF +extern int vasprintf(char **strp, const char *fmt, va_list ap); +#endif +#if !HAVE_DECL_VSNPRINTF +int vsnprintf(char *str, size_t size, const char *format, va_list ap); +#endif + #ifndef ATTR_NORETURN -#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)) +#if defined(__GNUC__) && (__GNUC__ > 2 \ + || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)) #define ATTR_NORETURN __attribute__ ((noreturn)) #else #define ATTR_NORETURN /* nothing */ @@ -61,20 +76,49 @@ extern void perror (const char *); #endif #ifndef ATTR_FORMAT -#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4)) +#if defined(__GNUC__) && (__GNUC__ > 2 \ + || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4)) #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y))) #else #define ATTR_FORMAT(type, x, y) /* nothing */ #endif #endif +#ifndef ATTR_MALLOC +#if defined(__GNUC__) && (__GNUC__ >= 3) +#define ATTR_MALLOC __attribute__ ((__malloc__)) +#else +#define ATTR_MALLOC /* nothing */ +#endif +#endif + +/* Define underscore macro, if not available, to be able to use it inside + code shared with gdb in common directory. */ +#ifndef _ +#define _(String) (String) +#endif + +#ifdef IN_PROCESS_AGENT +# define PROG "ipa" +#else +# define PROG "gdbserver" +#endif + /* A type used for binary buffers. */ typedef unsigned char gdb_byte; +#include "ptid.h" +#include "buffer.h" +#include "xml-utils.h" +#include "gdb_locale.h" + /* FIXME: This should probably be autoconf'd for. It's an integer type at least the size of a (void *). */ typedef long long CORE_ADDR; +typedef long long LONGEST; +typedef unsigned long long ULONGEST; + /* Generic information for tracking a list of ``inferiors'' - threads, processes, etc. */ struct inferior_list @@ -84,12 +128,20 @@ 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" +#include "gdbthread.h" struct dll_info { @@ -98,11 +150,46 @@ struct dll_info CORE_ADDR base_addr; }; -#include "regcache.h" -#include "gdb/signals.h" +struct sym_cache; +struct breakpoint; +struct raw_breakpoint; +struct fast_tracepoint_jump; +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; + + /* The list of memory breakpoints. */ + struct breakpoint *breakpoints; + + /* The list of raw memory breakpoints. */ + struct raw_breakpoint *raw_breakpoints; + + /* The list of installed fast tracepoints. */ + struct fast_tracepoint_jump *fast_tracepoint_jumps; + + /* 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 */ @@ -110,23 +197,30 @@ void initialize_low (); /* From inferiors.c. */ -extern struct inferior_list all_threads; +extern struct inferior_list all_processes; extern struct inferior_list all_dlls; extern int dlls_changed; +extern void clear_dlls (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); -struct thread_info *gdb_id_to_thread (unsigned int); + +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); + +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); + void clear_inferiors (void); struct inferior_list_entry *find_inferior (struct inferior_list *, @@ -134,103 +228,331 @@ 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 *); void set_inferior_regcache_data (struct thread_info *, void *); -void change_inferior_id (struct inferior_list *list, - unsigned long new_id); void loaded_dll (const char *name, CORE_ADDR base_addr); void unloaded_dll (const char *name, CORE_ADDR base_addr); /* 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 int server_waiting; extern int debug_threads; +extern int debug_hw_points; extern int pass_signals[]; +extern int program_signals[]; +extern int program_signals_p; 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 run_once; +extern int multi_process; +extern int non_stop; + +extern int disable_randomization; + +#if USE_WIN32API +#include +typedef SOCKET gdb_fildes_t; +#else +typedef int gdb_fildes_t; +#endif + +/* Functions from event-loop.c. */ +typedef void *gdb_client_data; +typedef int (handler_func) (int, gdb_client_data); +typedef int (callback_handler_func) (gdb_client_data); + +extern void delete_file_handler (gdb_fildes_t fd); +extern void add_file_handler (gdb_fildes_t fd, handler_func *proc, + gdb_client_data client_data); +extern int append_callback_event (callback_handler_func *proc, + gdb_client_data client_data); +extern void delete_callback_event (int id); + +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 *); + +/* Functions from hostio-errno.c. */ +extern void hostio_last_error_from_errno (char *own_buf); + /* From remote-utils.c */ extern int remote_debug; -extern int all_symbols_looked_up; +extern int noack_mode; +extern int transport_is_reliable; + +int gdb_connected (void); + +#define STDIO_CONNECTION_NAME "stdio" +int remote_connection_is_stdio (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_prepare (char *name); void remote_open (char *name); void remote_close (void); void write_ok (char *buf); void write_enn (char *buf); +void initialize_async_io (void); void enable_async_io (void); void disable_async_io (void); -void unblock_async_io (void); -void block_async_io (void); void check_remote_input_interrupt_request (void); -void convert_ascii_to_int (char *from, unsigned char *to, int n); -void convert_int_to_ascii (unsigned char *from, char *to, int n); +void convert_ascii_to_int (const char *from, unsigned char *to, int n); +void convert_int_to_ascii (const 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); void decode_m_packet (char *from, CORE_ADDR * mem_addr_ptr, unsigned int *len_ptr); void decode_M_packet (char *from, CORE_ADDR * mem_addr_ptr, - unsigned int *len_ptr, unsigned char *to); + unsigned int *len_ptr, unsigned char **to_p); int decode_X_packet (char *from, int packet_len, CORE_ADDR * mem_addr_ptr, - unsigned int *len_ptr, unsigned char *to); -int decode_xfer_write (char *buf, int packet_len, char **annex, + unsigned int *len_ptr, unsigned char **to_p); +int decode_xfer_write (char *buf, int packet_len, 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); -int look_up_one_symbol (const char *name, CORE_ADDR *addrp); - -void monitor_output (const char *msg); +void clear_symbol_cache (struct sym_cache **symcache_p); +int look_up_one_symbol (const char *name, CORE_ADDR *addrp, int may_ask_gdb); -char *xml_escape_text (const char *text); +int relocate_instruction (CORE_ADDR *to, CORE_ADDR oldloc); -/* 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); +void monitor_output (const char *msg); /* Functions from utils.c */ - -void perror_with_name (char *string); +#include "common-utils.h" + +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; +int xsnprintf (char *str, size_t size, const char *format, ...) + ATTR_FORMAT (printf, 3, 4);; +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 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); +char *pfildes (gdb_fildes_t fd); -/* Functions from the register cache definition. */ - -void init_registers (void); +#include "gdb_assert.h" /* 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). */ #define MAXBUFBYTES(N) (((N)-32)/2) -/* Buffer sizes for transferring memory, registers, etc. Round up PBUFSIZ to - hold all the registers, at least. */ -#define PBUFSIZ ((registers_length () + 32 > 2000) \ - ? (registers_length () + 32) \ - : 2000) +/* Buffer sizes for transferring memory, registers, etc. Set to a constant + value to accomodate multiple register formats. This value must be at least + as large as the largest register set supported by gdbserver. */ +#define PBUFSIZ 16384 + +/* Functions from tracepoint.c */ + +/* Size for a small buffer to report problems from the in-process + agent back to GDBserver. */ +#define IPA_BUFSIZ 100 + +void initialize_tracepoint (void); + +extern int tracing; +extern int disconnected_tracing; + +void tracepoint_look_up_symbols (void); + +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); + +int traceframe_read_sdata (int tfnum, ULONGEST offset, + unsigned char *buf, ULONGEST length, + ULONGEST *nbytes); + +int traceframe_read_info (int tfnum, struct buffer *buffer); + +/* If a thread is determined to be collecting a fast tracepoint, this + structure holds the collect status. */ + +struct fast_tpoint_collect_status +{ + /* The tracepoint that is presently being collected. */ + int tpoint_num; + CORE_ADDR tpoint_addr; + + /* The address range in the jump pad of where the original + instruction the tracepoint jump was inserted was relocated + to. */ + CORE_ADDR adjusted_insn_addr; + CORE_ADDR adjusted_insn_addr_end; +}; + +int fast_tracepoint_collecting (CORE_ADDR thread_area, + CORE_ADDR stop_pc, + struct fast_tpoint_collect_status *status); +void force_unlock_trace_buffer (void); + +int handle_tracepoint_bkpts (struct thread_info *tinfo, CORE_ADDR stop_pc); + +#ifdef IN_PROCESS_AGENT +void initialize_low_tracepoint (void); +void supply_fast_tracepoint_registers (struct regcache *regcache, + const unsigned char *regs); +void supply_static_tracepoint_registers (struct regcache *regcache, + const unsigned char *regs, + CORE_ADDR pc); +void set_trampoline_buffer_space (CORE_ADDR begin, CORE_ADDR end, + char *errmsg); +#else +void stop_tracing (void); + +int claim_trampoline_space (ULONGEST used, CORE_ADDR *trampoline); +int have_fast_tracepoint_trampoline_buffer (char *msgbuf); +#endif + +struct traceframe; + +/* Do memory copies for bytecodes. */ +/* Do the recording of memory blocks for actions and bytecodes. */ + +int agent_mem_read (struct traceframe *tframe, + unsigned char *to, CORE_ADDR from, + ULONGEST len); + +LONGEST agent_get_trace_state_variable_value (int num); +void agent_set_trace_state_variable_value (int num, LONGEST val); + +/* Record the value of a trace state variable. */ + +int agent_tsv_read (struct traceframe *tframe, int n); +int agent_mem_read_string (struct traceframe *tframe, + unsigned char *to, + CORE_ADDR from, + ULONGEST len); + +/* Bytecode compilation function vector. */ + +struct emit_ops +{ + void (*emit_prologue) (void); + void (*emit_epilogue) (void); + void (*emit_add) (void); + void (*emit_sub) (void); + void (*emit_mul) (void); + void (*emit_lsh) (void); + void (*emit_rsh_signed) (void); + void (*emit_rsh_unsigned) (void); + void (*emit_ext) (int arg); + void (*emit_log_not) (void); + void (*emit_bit_and) (void); + void (*emit_bit_or) (void); + void (*emit_bit_xor) (void); + void (*emit_bit_not) (void); + void (*emit_equal) (void); + void (*emit_less_signed) (void); + void (*emit_less_unsigned) (void); + void (*emit_ref) (int size); + void (*emit_if_goto) (int *offset_p, int *size_p); + void (*emit_goto) (int *offset_p, int *size_p); + void (*write_goto_address) (CORE_ADDR from, CORE_ADDR to, int size); + void (*emit_const) (LONGEST num); + void (*emit_call) (CORE_ADDR fn); + void (*emit_reg) (int reg); + void (*emit_pop) (void); + void (*emit_stack_flush) (void); + void (*emit_zero_ext) (int arg); + void (*emit_swap) (void); + void (*emit_stack_adjust) (int n); + + /* Emit code for a generic function that takes one fixed integer + argument and returns a 64-bit int (for instance, tsv getter). */ + void (*emit_int_call_1) (CORE_ADDR fn, int arg1); + + /* Emit code for a generic function that takes one fixed integer + argument and a 64-bit int from the top of the stack, and returns + nothing (for instance, tsv setter). */ + void (*emit_void_call_2) (CORE_ADDR fn, int arg1); + + /* Emit code specialized for common combinations of compare followed + by a goto. */ + void (*emit_eq_goto) (int *offset_p, int *size_p); + void (*emit_ne_goto) (int *offset_p, int *size_p); + void (*emit_lt_goto) (int *offset_p, int *size_p); + void (*emit_le_goto) (int *offset_p, int *size_p); + void (*emit_gt_goto) (int *offset_p, int *size_p); + void (*emit_ge_goto) (int *offset_p, int *size_p); +}; + +/* Returns the address of the get_raw_reg function in the IPA. */ +CORE_ADDR get_raw_reg_func_addr (void); +/* Returns the address of the get_trace_state_variable_value + function in the IPA. */ +CORE_ADDR get_get_tsv_func_addr (void); +/* Returns the address of the set_trace_state_variable_value + function in the IPA. */ +CORE_ADDR get_set_tsv_func_addr (void); + +CORE_ADDR current_insn_ptr; +int emit_error; /* Version information, from version.c. */ extern const char version[];