/* Common definitions for remote server for GDB. Copyright (C) 1993-2013 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 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 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, see . */ #ifndef SERVER_H #define SERVER_H #include "config.h" #include "build-gnulib-gdbserver/config.h" #ifdef __MINGW32CE__ #include "wincecompat.h" #endif #include "libiberty.h" #include "ansidecl.h" #include "version.h" #include #include #include #ifdef HAVE_ERRNO_H #include #endif #include /* For gnulib's PATH_MAX. */ #include "pathmax.h" #ifdef HAVE_STRING_H #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 */ #endif #endif #if !HAVE_DECL_PERROR #ifndef perror 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 /* 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 { struct inferior_list_entry *head; struct inferior_list_entry *tail; }; struct inferior_list_entry { ptid_t id; struct inferior_list_entry *next; }; struct thread_info; struct process_info; struct regcache; struct target_desc; #include "regcache.h" #include "gdb/signals.h" #include "gdb_signals.h" #include "target.h" #include "mem-break.h" #include "gdbthread.h" struct dll_info { struct inferior_list_entry entry; char *name; CORE_ADDR base_addr; }; struct sym_cache; struct breakpoint; struct raw_breakpoint; struct fast_tracepoint_jump; struct process_info_private; 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; const struct target_desc *tdesc; /* 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 */ void initialize_low (); /* From inferiors.c. */ 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); 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 *, int (*func) (struct inferior_list_entry *, void *), void *arg); struct inferior_list_entry *find_inferior_id (struct inferior_list *list, 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 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 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); extern void initialize_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); /* 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 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 check_remote_input_interrupt_request (void); 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, 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_p); int decode_X_packet (char *from, int packet_len, CORE_ADDR * mem_addr_ptr, 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); void clear_symbol_cache (struct sym_cache **symcache_p); int look_up_one_symbol (const char *name, CORE_ADDR *addrp, int may_ask_gdb); int relocate_instruction (CORE_ADDR *to, CORE_ADDR oldloc); void monitor_output (const char *msg); /* Functions from utils.c */ #include "common-utils.h" void perror_with_name (const char *string); void error (const char *string,...) ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2); void fatal (const char *string,...) ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2); void warning (const char *string,...) ATTRIBUTE_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); #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. 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); extern const struct target_desc *ipa_tdesc; #else void stop_tracing (void); int claim_trampoline_space (ULONGEST used, CORE_ADDR *trampoline); int have_fast_tracepoint_trampoline_buffer (char *msgbuf); void gdb_agent_about_to_close (int pid); #endif struct traceframe; struct eval_agent_expr_context; /* Do memory copies for bytecodes. */ /* Do the recording of memory blocks for actions and bytecodes. */ int agent_mem_read (struct eval_agent_expr_context *ctx, 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 eval_agent_expr_context *ctx, int n); int agent_mem_read_string (struct eval_agent_expr_context *ctx, 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); extern CORE_ADDR current_insn_ptr; extern int emit_error; #endif /* SERVER_H */