| /* Interface between GDB and target environments, including files and processes |
| |
| Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
| 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
| Free Software Foundation, Inc. |
| |
| Contributed by Cygnus Support. Written by John Gilmore. |
| |
| 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 <http://www.gnu.org/licenses/>. */ |
| |
| #if !defined (TARGET_H) |
| #define TARGET_H |
| |
| struct objfile; |
| struct ui_file; |
| struct mem_attrib; |
| struct target_ops; |
| struct bp_target_info; |
| struct regcache; |
| struct target_section_table; |
| |
| /* This include file defines the interface between the main part |
| of the debugger, and the part which is target-specific, or |
| specific to the communications interface between us and the |
| target. |
| |
| A TARGET is an interface between the debugger and a particular |
| kind of file or process. Targets can be STACKED in STRATA, |
| so that more than one target can potentially respond to a request. |
| In particular, memory accesses will walk down the stack of targets |
| until they find a target that is interested in handling that particular |
| address. STRATA are artificial boundaries on the stack, within |
| which particular kinds of targets live. Strata exist so that |
| people don't get confused by pushing e.g. a process target and then |
| a file target, and wondering why they can't see the current values |
| of variables any more (the file target is handling them and they |
| never get to the process target). So when you push a file target, |
| it goes into the file stratum, which is always below the process |
| stratum. */ |
| |
| #include "bfd.h" |
| #include "symtab.h" |
| #include "dcache.h" |
| #include "memattr.h" |
| #include "vec.h" |
| #include "gdb_signals.h" |
| |
| enum strata |
| { |
| dummy_stratum, /* The lowest of the low */ |
| file_stratum, /* Executable files, etc */ |
| core_stratum, /* Core dump files */ |
| process_stratum, /* Executing processes */ |
| thread_stratum, /* Executing threads */ |
| record_stratum /* Support record debugging */ |
| }; |
| |
| enum thread_control_capabilities |
| { |
| tc_none = 0, /* Default: can't control thread execution. */ |
| tc_schedlock = 1, /* Can lock the thread scheduler. */ |
| }; |
| |
| /* Stuff for target_wait. */ |
| |
| /* Generally, what has the program done? */ |
| enum target_waitkind |
| { |
| /* The program has exited. The exit status is in value.integer. */ |
| TARGET_WAITKIND_EXITED, |
| |
| /* The program has stopped with a signal. Which signal is in |
| value.sig. */ |
| TARGET_WAITKIND_STOPPED, |
| |
| /* The program has terminated with a signal. Which signal is in |
| value.sig. */ |
| TARGET_WAITKIND_SIGNALLED, |
| |
| /* The program is letting us know that it dynamically loaded something |
| (e.g. it called load(2) on AIX). */ |
| TARGET_WAITKIND_LOADED, |
| |
| /* The program has forked. A "related" process' PTID is in |
| value.related_pid. I.e., if the child forks, value.related_pid |
| is the parent's ID. */ |
| |
| TARGET_WAITKIND_FORKED, |
| |
| /* The program has vforked. A "related" process's PTID is in |
| value.related_pid. */ |
| |
| TARGET_WAITKIND_VFORKED, |
| |
| /* The program has exec'ed a new executable file. The new file's |
| pathname is pointed to by value.execd_pathname. */ |
| |
| TARGET_WAITKIND_EXECD, |
| |
| /* The program has entered or returned from a system call. On |
| HP-UX, this is used in the hardware watchpoint implementation. |
| The syscall's unique integer ID number is in value.syscall_id */ |
| |
| TARGET_WAITKIND_SYSCALL_ENTRY, |
| TARGET_WAITKIND_SYSCALL_RETURN, |
| |
| /* Nothing happened, but we stopped anyway. This perhaps should be handled |
| within target_wait, but I'm not sure target_wait should be resuming the |
| inferior. */ |
| TARGET_WAITKIND_SPURIOUS, |
| |
| /* An event has occured, but we should wait again. |
| Remote_async_wait() returns this when there is an event |
| on the inferior, but the rest of the world is not interested in |
| it. The inferior has not stopped, but has just sent some output |
| to the console, for instance. In this case, we want to go back |
| to the event loop and wait there for another event from the |
| inferior, rather than being stuck in the remote_async_wait() |
| function. This way the event loop is responsive to other events, |
| like for instance the user typing. */ |
| TARGET_WAITKIND_IGNORE, |
| |
| /* The target has run out of history information, |
| and cannot run backward any further. */ |
| TARGET_WAITKIND_NO_HISTORY |
| }; |
| |
| struct target_waitstatus |
| { |
| enum target_waitkind kind; |
| |
| /* Forked child pid, execd pathname, exit status or signal number. */ |
| union |
| { |
| int integer; |
| enum target_signal sig; |
| ptid_t related_pid; |
| char *execd_pathname; |
| int syscall_id; |
| } |
| value; |
| }; |
| |
| /* Options that can be passed to target_wait. */ |
| |
| /* Return immediately if there's no event already queued. If this |
| options is not requested, target_wait blocks waiting for an |
| event. */ |
| #define TARGET_WNOHANG 1 |
| |
| /* Return a pretty printed form of target_waitstatus. |
| Space for the result is malloc'd, caller must free. */ |
| extern char *target_waitstatus_to_string (const struct target_waitstatus *); |
| |
| /* Possible types of events that the inferior handler will have to |
| deal with. */ |
| enum inferior_event_type |
| { |
| /* There is a request to quit the inferior, abandon it. */ |
| INF_QUIT_REQ, |
| /* Process a normal inferior event which will result in target_wait |
| being called. */ |
| INF_REG_EVENT, |
| /* Deal with an error on the inferior. */ |
| INF_ERROR, |
| /* We are called because a timer went off. */ |
| INF_TIMER, |
| /* We are called to do stuff after the inferior stops. */ |
| INF_EXEC_COMPLETE, |
| /* We are called to do some stuff after the inferior stops, but we |
| are expected to reenter the proceed() and |
| handle_inferior_event() functions. This is used only in case of |
| 'step n' like commands. */ |
| INF_EXEC_CONTINUE |
| }; |
| |
| /* Target objects which can be transfered using target_read, |
| target_write, et cetera. */ |
| |
| enum target_object |
| { |
| /* AVR target specific transfer. See "avr-tdep.c" and "remote.c". */ |
| TARGET_OBJECT_AVR, |
| /* SPU target specific transfer. See "spu-tdep.c". */ |
| TARGET_OBJECT_SPU, |
| /* Transfer up-to LEN bytes of memory starting at OFFSET. */ |
| TARGET_OBJECT_MEMORY, |
| /* Memory, avoiding GDB's data cache and trusting the executable. |
| Target implementations of to_xfer_partial never need to handle |
| this object, and most callers should not use it. */ |
| TARGET_OBJECT_RAW_MEMORY, |
| /* Kernel Unwind Table. See "ia64-tdep.c". */ |
| TARGET_OBJECT_UNWIND_TABLE, |
| /* Transfer auxilliary vector. */ |
| TARGET_OBJECT_AUXV, |
| /* StackGhost cookie. See "sparc-tdep.c". */ |
| TARGET_OBJECT_WCOOKIE, |
| /* Target memory map in XML format. */ |
| TARGET_OBJECT_MEMORY_MAP, |
| /* Flash memory. This object can be used to write contents to |
| a previously erased flash memory. Using it without erasing |
| flash can have unexpected results. Addresses are physical |
| address on target, and not relative to flash start. */ |
| TARGET_OBJECT_FLASH, |
| /* Available target-specific features, e.g. registers and coprocessors. |
| See "target-descriptions.c". ANNEX should never be empty. */ |
| TARGET_OBJECT_AVAILABLE_FEATURES, |
| /* Currently loaded libraries, in XML format. */ |
| TARGET_OBJECT_LIBRARIES, |
| /* Get OS specific data. The ANNEX specifies the type (running |
| processes, etc.). */ |
| TARGET_OBJECT_OSDATA, |
| /* Extra signal info. Usually the contents of `siginfo_t' on unix |
| platforms. */ |
| TARGET_OBJECT_SIGNAL_INFO, |
| /* Possible future objects: TARGET_OBJECT_FILE, ... */ |
| }; |
| |
| /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
| OBJECT. The OFFSET, for a seekable object, specifies the |
| starting point. The ANNEX can be used to provide additional |
| data-specific information to the target. |
| |
| Return the number of bytes actually transfered, or -1 if the |
| transfer is not supported or otherwise fails. Return of a positive |
| value less than LEN indicates that no further transfer is possible. |
| Unlike the raw to_xfer_partial interface, callers of these |
| functions do not need to retry partial transfers. */ |
| |
| extern LONGEST target_read (struct target_ops *ops, |
| enum target_object object, |
| const char *annex, gdb_byte *buf, |
| ULONGEST offset, LONGEST len); |
| |
| extern LONGEST target_read_until_error (struct target_ops *ops, |
| enum target_object object, |
| const char *annex, gdb_byte *buf, |
| ULONGEST offset, LONGEST len); |
| |
| extern LONGEST target_write (struct target_ops *ops, |
| enum target_object object, |
| const char *annex, const gdb_byte *buf, |
| ULONGEST offset, LONGEST len); |
| |
| /* Similar to target_write, except that it also calls PROGRESS with |
| the number of bytes written and the opaque BATON after every |
| successful partial write (and before the first write). This is |
| useful for progress reporting and user interaction while writing |
| data. To abort the transfer, the progress callback can throw an |
| exception. */ |
| |
| LONGEST target_write_with_progress (struct target_ops *ops, |
| enum target_object object, |
| const char *annex, const gdb_byte *buf, |
| ULONGEST offset, LONGEST len, |
| void (*progress) (ULONGEST, void *), |
| void *baton); |
| |
| /* Wrapper to perform a full read of unknown size. OBJECT/ANNEX will |
| be read using OPS. The return value will be -1 if the transfer |
| fails or is not supported; 0 if the object is empty; or the length |
| of the object otherwise. If a positive value is returned, a |
| sufficiently large buffer will be allocated using xmalloc and |
| returned in *BUF_P containing the contents of the object. |
| |
| This method should be used for objects sufficiently small to store |
| in a single xmalloc'd buffer, when no fixed bound on the object's |
| size is known in advance. Don't try to read TARGET_OBJECT_MEMORY |
| through this function. */ |
| |
| extern LONGEST target_read_alloc (struct target_ops *ops, |
| enum target_object object, |
| const char *annex, gdb_byte **buf_p); |
| |
| /* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and |
| returned as a string, allocated using xmalloc. If an error occurs |
| or the transfer is unsupported, NULL is returned. Empty objects |
| are returned as allocated but empty strings. A warning is issued |
| if the result contains any embedded NUL bytes. */ |
| |
| extern char *target_read_stralloc (struct target_ops *ops, |
| enum target_object object, |
| const char *annex); |
| |
| /* Wrappers to target read/write that perform memory transfers. They |
| throw an error if the memory transfer fails. |
| |
| NOTE: cagney/2003-10-23: The naming schema is lifted from |
| "frame.h". The parameter order is lifted from get_frame_memory, |
| which in turn lifted it from read_memory. */ |
| |
| extern void get_target_memory (struct target_ops *ops, CORE_ADDR addr, |
| gdb_byte *buf, LONGEST len); |
| extern ULONGEST get_target_memory_unsigned (struct target_ops *ops, |
| CORE_ADDR addr, int len); |
| |
| struct thread_info; /* fwd decl for parameter list below: */ |
| |
| struct target_ops |
| { |
| struct target_ops *beneath; /* To the target under this one. */ |
| char *to_shortname; /* Name this target type */ |
| char *to_longname; /* Name for printing */ |
| char *to_doc; /* Documentation. Does not include trailing |
| newline, and starts with a one-line descrip- |
| tion (probably similar to to_longname). */ |
| /* Per-target scratch pad. */ |
| void *to_data; |
| /* The open routine takes the rest of the parameters from the |
| command, and (if successful) pushes a new target onto the |
| stack. Targets should supply this routine, if only to provide |
| an error message. */ |
| void (*to_open) (char *, int); |
| /* Old targets with a static target vector provide "to_close". |
| New re-entrant targets provide "to_xclose" and that is expected |
| to xfree everything (including the "struct target_ops"). */ |
| void (*to_xclose) (struct target_ops *targ, int quitting); |
| void (*to_close) (int); |
| void (*to_attach) (struct target_ops *ops, char *, int); |
| void (*to_post_attach) (int); |
| void (*to_detach) (struct target_ops *ops, char *, int); |
| void (*to_disconnect) (struct target_ops *, char *, int); |
| void (*to_resume) (struct target_ops *, ptid_t, int, enum target_signal); |
| ptid_t (*to_wait) (struct target_ops *, |
| ptid_t, struct target_waitstatus *, int); |
| void (*to_fetch_registers) (struct target_ops *, struct regcache *, int); |
| void (*to_store_registers) (struct target_ops *, struct regcache *, int); |
| void (*to_prepare_to_store) (struct regcache *); |
| |
| /* Transfer LEN bytes of memory between GDB address MYADDR and |
| target address MEMADDR. If WRITE, transfer them to the target, else |
| transfer them from the target. TARGET is the target from which we |
| get this function. |
| |
| Return value, N, is one of the following: |
| |
| 0 means that we can't handle this. If errno has been set, it is the |
| error which prevented us from doing it (FIXME: What about bfd_error?). |
| |
| positive (call it N) means that we have transferred N bytes |
| starting at MEMADDR. We might be able to handle more bytes |
| beyond this length, but no promises. |
| |
| negative (call its absolute value N) means that we cannot |
| transfer right at MEMADDR, but we could transfer at least |
| something at MEMADDR + N. |
| |
| NOTE: cagney/2004-10-01: This has been entirely superseeded by |
| to_xfer_partial and inferior inheritance. */ |
| |
| int (*deprecated_xfer_memory) (CORE_ADDR memaddr, gdb_byte *myaddr, |
| int len, int write, |
| struct mem_attrib *attrib, |
| struct target_ops *target); |
| |
| void (*to_files_info) (struct target_ops *); |
| int (*to_insert_breakpoint) (struct bp_target_info *); |
| int (*to_remove_breakpoint) (struct bp_target_info *); |
| int (*to_can_use_hw_breakpoint) (int, int, int); |
| int (*to_insert_hw_breakpoint) (struct bp_target_info *); |
| int (*to_remove_hw_breakpoint) (struct bp_target_info *); |
| int (*to_remove_watchpoint) (CORE_ADDR, int, int); |
| int (*to_insert_watchpoint) (CORE_ADDR, int, int); |
| int (*to_stopped_by_watchpoint) (void); |
| int to_have_steppable_watchpoint; |
| int to_have_continuable_watchpoint; |
| int (*to_stopped_data_address) (struct target_ops *, CORE_ADDR *); |
| int (*to_watchpoint_addr_within_range) (struct target_ops *, |
| CORE_ADDR, CORE_ADDR, int); |
| int (*to_region_ok_for_hw_watchpoint) (CORE_ADDR, int); |
| void (*to_terminal_init) (void); |
| void (*to_terminal_inferior) (void); |
| void (*to_terminal_ours_for_output) (void); |
| void (*to_terminal_ours) (void); |
| void (*to_terminal_save_ours) (void); |
| void (*to_terminal_info) (char *, int); |
| void (*to_kill) (struct target_ops *); |
| void (*to_load) (char *, int); |
| int (*to_lookup_symbol) (char *, CORE_ADDR *); |
| void (*to_create_inferior) (struct target_ops *, |
| char *, char *, char **, int); |
| void (*to_post_startup_inferior) (ptid_t); |
| void (*to_acknowledge_created_inferior) (int); |
| void (*to_insert_fork_catchpoint) (int); |
| int (*to_remove_fork_catchpoint) (int); |
| void (*to_insert_vfork_catchpoint) (int); |
| int (*to_remove_vfork_catchpoint) (int); |
| int (*to_follow_fork) (struct target_ops *, int); |
| void (*to_insert_exec_catchpoint) (int); |
| int (*to_remove_exec_catchpoint) (int); |
| int (*to_has_exited) (int, int, int *); |
| void (*to_mourn_inferior) (struct target_ops *); |
| int (*to_can_run) (void); |
| void (*to_notice_signals) (ptid_t ptid); |
| int (*to_thread_alive) (struct target_ops *, ptid_t ptid); |
| void (*to_find_new_threads) (struct target_ops *); |
| char *(*to_pid_to_str) (struct target_ops *, ptid_t); |
| char *(*to_extra_thread_info) (struct thread_info *); |
| void (*to_stop) (ptid_t); |
| void (*to_rcmd) (char *command, struct ui_file *output); |
| char *(*to_pid_to_exec_file) (int pid); |
| void (*to_log_command) (const char *); |
| struct target_section_table *(*to_get_section_table) (struct target_ops *); |
| enum strata to_stratum; |
| int (*to_has_all_memory) (struct target_ops *); |
| int (*to_has_memory) (struct target_ops *); |
| int (*to_has_stack) (struct target_ops *); |
| int (*to_has_registers) (struct target_ops *); |
| int (*to_has_execution) (struct target_ops *); |
| int to_has_thread_control; /* control thread execution */ |
| int to_attach_no_wait; |
| /* ASYNC target controls */ |
| int (*to_can_async_p) (void); |
| int (*to_is_async_p) (void); |
| void (*to_async) (void (*) (enum inferior_event_type, void *), void *); |
| int (*to_async_mask) (int); |
| int (*to_supports_non_stop) (void); |
| int (*to_find_memory_regions) (int (*) (CORE_ADDR, |
| unsigned long, |
| int, int, int, |
| void *), |
| void *); |
| char * (*to_make_corefile_notes) (bfd *, int *); |
| |
| /* Return the thread-local address at OFFSET in the |
| thread-local storage for the thread PTID and the shared library |
| or executable file given by OBJFILE. If that block of |
| thread-local storage hasn't been allocated yet, this function |
| may return an error. */ |
| CORE_ADDR (*to_get_thread_local_address) (struct target_ops *ops, |
| ptid_t ptid, |
| CORE_ADDR load_module_addr, |
| CORE_ADDR offset); |
| |
| /* Request that OPS transfer up to LEN 8-bit bytes of the target's |
| OBJECT. The OFFSET, for a seekable object, specifies the |
| starting point. The ANNEX can be used to provide additional |
| data-specific information to the target. |
| |
| Return the number of bytes actually transfered, zero when no |
| further transfer is possible, and -1 when the transfer is not |
| supported. Return of a positive value smaller than LEN does |
| not indicate the end of the object, only the end of the |
| transfer; higher level code should continue transferring if |
| desired. This is handled in target.c. |
| |
| The interface does not support a "retry" mechanism. Instead it |
| assumes that at least one byte will be transfered on each |
| successful call. |
| |
| NOTE: cagney/2003-10-17: The current interface can lead to |
| fragmented transfers. Lower target levels should not implement |
| hacks, such as enlarging the transfer, in an attempt to |
| compensate for this. Instead, the target stack should be |
| extended so that it implements supply/collect methods and a |
| look-aside object cache. With that available, the lowest |
| target can safely and freely "push" data up the stack. |
| |
| See target_read and target_write for more information. One, |
| and only one, of readbuf or writebuf must be non-NULL. */ |
| |
| LONGEST (*to_xfer_partial) (struct target_ops *ops, |
| enum target_object object, const char *annex, |
| gdb_byte *readbuf, const gdb_byte *writebuf, |
| ULONGEST offset, LONGEST len); |
| |
| /* Returns the memory map for the target. A return value of NULL |
| means that no memory map is available. If a memory address |
| does not fall within any returned regions, it's assumed to be |
| RAM. The returned memory regions should not overlap. |
| |
| The order of regions does not matter; target_memory_map will |
| sort regions by starting address. For that reason, this |
| function should not be called directly except via |
| target_memory_map. |
| |
| This method should not cache data; if the memory map could |
| change unexpectedly, it should be invalidated, and higher |
| layers will re-fetch it. */ |
| VEC(mem_region_s) *(*to_memory_map) (struct target_ops *); |
| |
| /* Erases the region of flash memory starting at ADDRESS, of |
| length LENGTH. |
| |
| Precondition: both ADDRESS and ADDRESS+LENGTH should be aligned |
| on flash block boundaries, as reported by 'to_memory_map'. */ |
| void (*to_flash_erase) (struct target_ops *, |
| ULONGEST address, LONGEST length); |
| |
| /* Finishes a flash memory write sequence. After this operation |
| all flash memory should be available for writing and the result |
| of reading from areas written by 'to_flash_write' should be |
| equal to what was written. */ |
| void (*to_flash_done) (struct target_ops *); |
| |
| /* Describe the architecture-specific features of this target. |
| Returns the description found, or NULL if no description |
| was available. */ |
| const struct target_desc *(*to_read_description) (struct target_ops *ops); |
| |
| /* Build the PTID of the thread on which a given task is running, |
| based on LWP and THREAD. These values are extracted from the |
| task Private_Data section of the Ada Task Control Block, and |
| their interpretation depends on the target. */ |
| ptid_t (*to_get_ada_task_ptid) (long lwp, long thread); |
| |
| /* Read one auxv entry from *READPTR, not reading locations >= ENDPTR. |
| Return 0 if *READPTR is already at the end of the buffer. |
| Return -1 if there is insufficient buffer for a whole entry. |
| Return 1 if an entry was read into *TYPEP and *VALP. */ |
| int (*to_auxv_parse) (struct target_ops *ops, gdb_byte **readptr, |
| gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp); |
| |
| /* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the |
| sequence of bytes in PATTERN with length PATTERN_LEN. |
| |
| The result is 1 if found, 0 if not found, and -1 if there was an error |
| requiring halting of the search (e.g. memory read error). |
| If the pattern is found the address is recorded in FOUND_ADDRP. */ |
| int (*to_search_memory) (struct target_ops *ops, |
| CORE_ADDR start_addr, ULONGEST search_space_len, |
| const gdb_byte *pattern, ULONGEST pattern_len, |
| CORE_ADDR *found_addrp); |
| |
| /* Can target execute in reverse? */ |
| int (*to_can_execute_reverse) (void); |
| |
| /* Does this target support debugging multiple processes |
| simultaneously? */ |
| int (*to_supports_multi_process) (void); |
| |
| int to_magic; |
| /* Need sub-structure for target machine related rather than comm related? |
| */ |
| }; |
| |
| /* Magic number for checking ops size. If a struct doesn't end with this |
| number, somebody changed the declaration but didn't change all the |
| places that initialize one. */ |
| |
| #define OPS_MAGIC 3840 |
| |
| /* The ops structure for our "current" target process. This should |
| never be NULL. If there is no target, it points to the dummy_target. */ |
| |
| extern struct target_ops current_target; |
| |
| /* Define easy words for doing these operations on our current target. */ |
| |
| #define target_shortname (current_target.to_shortname) |
| #define target_longname (current_target.to_longname) |
| |
| /* Does whatever cleanup is required for a target that we are no |
| longer going to be calling. QUITTING indicates that GDB is exiting |
| and should not get hung on an error (otherwise it is important to |
| perform clean termination, even if it takes a while). This routine |
| is automatically always called when popping the target off the |
| target stack (to_beneath is undefined). Closing file descriptors |
| and freeing all memory allocated memory are typical things it |
| should do. */ |
| |
| void target_close (struct target_ops *targ, int quitting); |
| |
| /* Attaches to a process on the target side. Arguments are as passed |
| to the `attach' command by the user. This routine can be called |
| when the target is not on the target-stack, if the target_can_run |
| routine returns 1; in that case, it must push itself onto the stack. |
| Upon exit, the target should be ready for normal operations, and |
| should be ready to deliver the status of the process immediately |
| (without waiting) to an upcoming target_wait call. */ |
| |
| void target_attach (char *, int); |
| |
| /* Some targets don't generate traps when attaching to the inferior, |
| or their target_attach implementation takes care of the waiting. |
| These targets must set to_attach_no_wait. */ |
| |
| #define target_attach_no_wait \ |
| (current_target.to_attach_no_wait) |
| |
| /* The target_attach operation places a process under debugger control, |
| and stops the process. |
| |
| This operation provides a target-specific hook that allows the |
| necessary bookkeeping to be performed after an attach completes. */ |
| #define target_post_attach(pid) \ |
| (*current_target.to_post_attach) (pid) |
| |
| /* Takes a program previously attached to and detaches it. |
| The program may resume execution (some targets do, some don't) and will |
| no longer stop on signals, etc. We better not have left any breakpoints |
| in the program or it'll die when it hits one. ARGS is arguments |
| typed by the user (e.g. a signal to send the process). FROM_TTY |
| says whether to be verbose or not. */ |
| |
| extern void target_detach (char *, int); |
| |
| /* Disconnect from the current target without resuming it (leaving it |
| waiting for a debugger). */ |
| |
| extern void target_disconnect (char *, int); |
| |
| /* Resume execution of the target process PTID. STEP says whether to |
| single-step or to run free; SIGGNAL is the signal to be given to |
| the target, or TARGET_SIGNAL_0 for no signal. The caller may not |
| pass TARGET_SIGNAL_DEFAULT. */ |
| |
| extern void target_resume (ptid_t ptid, int step, enum target_signal signal); |
| |
| /* Wait for process pid to do something. PTID = -1 to wait for any |
| pid to do something. Return pid of child, or -1 in case of error; |
| store status through argument pointer STATUS. Note that it is |
| _NOT_ OK to throw_exception() out of target_wait() without popping |
| the debugging target from the stack; GDB isn't prepared to get back |
| to the prompt with a debugging target but without the frame cache, |
| stop_pc, etc., set up. OPTIONS is a bitwise OR of TARGET_W* |
| options. */ |
| |
| extern ptid_t target_wait (ptid_t ptid, struct target_waitstatus *status, |
| int options); |
| |
| /* Fetch at least register REGNO, or all regs if regno == -1. No result. */ |
| |
| extern void target_fetch_registers (struct regcache *regcache, int regno); |
| |
| /* Store at least register REGNO, or all regs if REGNO == -1. |
| It can store as many registers as it wants to, so target_prepare_to_store |
| must have been previously called. Calls error() if there are problems. */ |
| |
| extern void target_store_registers (struct regcache *regcache, int regs); |
| |
| /* Get ready to modify the registers array. On machines which store |
| individual registers, this doesn't need to do anything. On machines |
| which store all the registers in one fell swoop, this makes sure |
| that REGISTERS contains all the registers from the program being |
| debugged. */ |
| |
| #define target_prepare_to_store(regcache) \ |
| (*current_target.to_prepare_to_store) (regcache) |
| |
| /* Returns true if this target can debug multiple processes |
| simultaneously. */ |
| |
| #define target_supports_multi_process() \ |
| (*current_target.to_supports_multi_process) () |
| |
| extern DCACHE *target_dcache; |
| |
| extern int target_read_string (CORE_ADDR, char **, int, int *); |
| |
| extern int target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len); |
| |
| extern int target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, |
| int len); |
| |
| /* Fetches the target's memory map. If one is found it is sorted |
| and returned, after some consistency checking. Otherwise, NULL |
| is returned. */ |
| VEC(mem_region_s) *target_memory_map (void); |
| |
| /* Erase the specified flash region. */ |
| void target_flash_erase (ULONGEST address, LONGEST length); |
| |
| /* Finish a sequence of flash operations. */ |
| void target_flash_done (void); |
| |
| /* Describes a request for a memory write operation. */ |
| struct memory_write_request |
| { |
| /* Begining address that must be written. */ |
| ULONGEST begin; |
| /* Past-the-end address. */ |
| ULONGEST end; |
| /* The data to write. */ |
| gdb_byte *data; |
| /* A callback baton for progress reporting for this request. */ |
| void *baton; |
| }; |
| typedef struct memory_write_request memory_write_request_s; |
| DEF_VEC_O(memory_write_request_s); |
| |
| /* Enumeration specifying different flash preservation behaviour. */ |
| enum flash_preserve_mode |
| { |
| flash_preserve, |
| flash_discard |
| }; |
| |
| /* Write several memory blocks at once. This version can be more |
| efficient than making several calls to target_write_memory, in |
| particular because it can optimize accesses to flash memory. |
| |
| Moreover, this is currently the only memory access function in gdb |
| that supports writing to flash memory, and it should be used for |
| all cases where access to flash memory is desirable. |
| |
| REQUESTS is the vector (see vec.h) of memory_write_request. |
| PRESERVE_FLASH_P indicates what to do with blocks which must be |
| erased, but not completely rewritten. |
| PROGRESS_CB is a function that will be periodically called to provide |
| feedback to user. It will be called with the baton corresponding |
| to the request currently being written. It may also be called |
| with a NULL baton, when preserved flash sectors are being rewritten. |
| |
| The function returns 0 on success, and error otherwise. */ |
| int target_write_memory_blocks (VEC(memory_write_request_s) *requests, |
| enum flash_preserve_mode preserve_flash_p, |
| void (*progress_cb) (ULONGEST, void *)); |
| |
| /* From infrun.c. */ |
| |
| extern int inferior_has_forked (ptid_t pid, ptid_t *child_pid); |
| |
| extern int inferior_has_vforked (ptid_t pid, ptid_t *child_pid); |
| |
| extern int inferior_has_execd (ptid_t pid, char **execd_pathname); |
| |
| /* Print a line about the current target. */ |
| |
| #define target_files_info() \ |
| (*current_target.to_files_info) (¤t_target) |
| |
| /* Insert a breakpoint at address BP_TGT->placed_address in the target |
| machine. Result is 0 for success, or an errno value. */ |
| |
| #define target_insert_breakpoint(bp_tgt) \ |
| (*current_target.to_insert_breakpoint) (bp_tgt) |
| |
| /* Remove a breakpoint at address BP_TGT->placed_address in the target |
| machine. Result is 0 for success, or an errno value. */ |
| |
| #define target_remove_breakpoint(bp_tgt) \ |
| (*current_target.to_remove_breakpoint) (bp_tgt) |
| |
| /* Initialize the terminal settings we record for the inferior, |
| before we actually run the inferior. */ |
| |
| #define target_terminal_init() \ |
| (*current_target.to_terminal_init) () |
| |
| /* Put the inferior's terminal settings into effect. |
| This is preparation for starting or resuming the inferior. */ |
| |
| extern void target_terminal_inferior (void); |
| |
| /* Put some of our terminal settings into effect, |
| enough to get proper results from our output, |
| but do not change into or out of RAW mode |
| so that no input is discarded. |
| |
| After doing this, either terminal_ours or terminal_inferior |
| should be called to get back to a normal state of affairs. */ |
| |
| #define target_terminal_ours_for_output() \ |
| (*current_target.to_terminal_ours_for_output) () |
| |
| /* Put our terminal settings into effect. |
| First record the inferior's terminal settings |
| so they can be restored properly later. */ |
| |
| #define target_terminal_ours() \ |
| (*current_target.to_terminal_ours) () |
| |
| /* Save our terminal settings. |
| This is called from TUI after entering or leaving the curses |
| mode. Since curses modifies our terminal this call is here |
| to take this change into account. */ |
| |
| #define target_terminal_save_ours() \ |
| (*current_target.to_terminal_save_ours) () |
| |
| /* Print useful information about our terminal status, if such a thing |
| exists. */ |
| |
| #define target_terminal_info(arg, from_tty) \ |
| (*current_target.to_terminal_info) (arg, from_tty) |
| |
| /* Kill the inferior process. Make it go away. */ |
| |
| extern void target_kill (void); |
| |
| /* Load an executable file into the target process. This is expected |
| to not only bring new code into the target process, but also to |
| update GDB's symbol tables to match. |
| |
| ARG contains command-line arguments, to be broken down with |
| buildargv (). The first non-switch argument is the filename to |
| load, FILE; the second is a number (as parsed by strtoul (..., ..., |
| 0)), which is an offset to apply to the load addresses of FILE's |
| sections. The target may define switches, or other non-switch |
| arguments, as it pleases. */ |
| |
| extern void target_load (char *arg, int from_tty); |
| |
| /* Look up a symbol in the target's symbol table. NAME is the symbol |
| name. ADDRP is a CORE_ADDR * pointing to where the value of the |
| symbol should be returned. The result is 0 if successful, nonzero |
| if the symbol does not exist in the target environment. This |
| function should not call error() if communication with the target |
| is interrupted, since it is called from symbol reading, but should |
| return nonzero, possibly doing a complain(). */ |
| |
| #define target_lookup_symbol(name, addrp) \ |
| (*current_target.to_lookup_symbol) (name, addrp) |
| |
| /* Start an inferior process and set inferior_ptid to its pid. |
| EXEC_FILE is the file to run. |
| ALLARGS is a string containing the arguments to the program. |
| ENV is the environment vector to pass. Errors reported with error(). |
| On VxWorks and various standalone systems, we ignore exec_file. */ |
| |
| void target_create_inferior (char *exec_file, char *args, |
| char **env, int from_tty); |
| |
| /* Some targets (such as ttrace-based HPUX) don't allow us to request |
| notification of inferior events such as fork and vork immediately |
| after the inferior is created. (This because of how gdb gets an |
| inferior created via invoking a shell to do it. In such a scenario, |
| if the shell init file has commands in it, the shell will fork and |
| exec for each of those commands, and we will see each such fork |
| event. Very bad.) |
| |
| Such targets will supply an appropriate definition for this function. */ |
| |
| #define target_post_startup_inferior(ptid) \ |
| (*current_target.to_post_startup_inferior) (ptid) |
| |
| /* On some targets, the sequence of starting up an inferior requires |
| some synchronization between gdb and the new inferior process, PID. */ |
| |
| #define target_acknowledge_created_inferior(pid) \ |
| (*current_target.to_acknowledge_created_inferior) (pid) |
| |
| /* On some targets, we can catch an inferior fork or vfork event when |
| it occurs. These functions insert/remove an already-created |
| catchpoint for such events. */ |
| |
| #define target_insert_fork_catchpoint(pid) \ |
| (*current_target.to_insert_fork_catchpoint) (pid) |
| |
| #define target_remove_fork_catchpoint(pid) \ |
| (*current_target.to_remove_fork_catchpoint) (pid) |
| |
| #define target_insert_vfork_catchpoint(pid) \ |
| (*current_target.to_insert_vfork_catchpoint) (pid) |
| |
| #define target_remove_vfork_catchpoint(pid) \ |
| (*current_target.to_remove_vfork_catchpoint) (pid) |
| |
| /* If the inferior forks or vforks, this function will be called at |
| the next resume in order to perform any bookkeeping and fiddling |
| necessary to continue debugging either the parent or child, as |
| requested, and releasing the other. Information about the fork |
| or vfork event is available via get_last_target_status (). |
| This function returns 1 if the inferior should not be resumed |
| (i.e. there is another event pending). */ |
| |
| int target_follow_fork (int follow_child); |
| |
| /* On some targets, we can catch an inferior exec event when it |
| occurs. These functions insert/remove an already-created |
| catchpoint for such events. */ |
| |
| #define target_insert_exec_catchpoint(pid) \ |
| (*current_target.to_insert_exec_catchpoint) (pid) |
| |
| #define target_remove_exec_catchpoint(pid) \ |
| (*current_target.to_remove_exec_catchpoint) (pid) |
| |
| /* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the |
| exit code of PID, if any. */ |
| |
| #define target_has_exited(pid,wait_status,exit_status) \ |
| (*current_target.to_has_exited) (pid,wait_status,exit_status) |
| |
| /* The debugger has completed a blocking wait() call. There is now |
| some process event that must be processed. This function should |
| be defined by those targets that require the debugger to perform |
| cleanup or internal state changes in response to the process event. */ |
| |
| /* The inferior process has died. Do what is right. */ |
| |
| void target_mourn_inferior (void); |
| |
| /* Does target have enough data to do a run or attach command? */ |
| |
| #define target_can_run(t) \ |
| ((t)->to_can_run) () |
| |
| /* post process changes to signal handling in the inferior. */ |
| |
| #define target_notice_signals(ptid) \ |
| (*current_target.to_notice_signals) (ptid) |
| |
| /* Check to see if a thread is still alive. */ |
| |
| extern int target_thread_alive (ptid_t ptid); |
| |
| /* Query for new threads and add them to the thread list. */ |
| |
| extern void target_find_new_threads (void); |
| |
| /* Make target stop in a continuable fashion. (For instance, under |
| Unix, this should act like SIGSTOP). This function is normally |
| used by GUIs to implement a stop button. */ |
| |
| #define target_stop(ptid) (*current_target.to_stop) (ptid) |
| |
| /* Send the specified COMMAND to the target's monitor |
| (shell,interpreter) for execution. The result of the query is |
| placed in OUTBUF. */ |
| |
| #define target_rcmd(command, outbuf) \ |
| (*current_target.to_rcmd) (command, outbuf) |
| |
| |
| /* Does the target include all of memory, or only part of it? This |
| determines whether we look up the target chain for other parts of |
| memory if this target can't satisfy a request. */ |
| |
| extern int target_has_all_memory_1 (void); |
| #define target_has_all_memory target_has_all_memory_1 () |
| |
| /* Does the target include memory? (Dummy targets don't.) */ |
| |
| extern int target_has_memory_1 (void); |
| #define target_has_memory target_has_memory_1 () |
| |
| /* Does the target have a stack? (Exec files don't, VxWorks doesn't, until |
| we start a process.) */ |
| |
| extern int target_has_stack_1 (void); |
| #define target_has_stack target_has_stack_1 () |
| |
| /* Does the target have registers? (Exec files don't.) */ |
| |
| extern int target_has_registers_1 (void); |
| #define target_has_registers target_has_registers_1 () |
| |
| /* Does the target have execution? Can we make it jump (through |
| hoops), or pop its stack a few times? This means that the current |
| target is currently executing; for some targets, that's the same as |
| whether or not the target is capable of execution, but there are |
| also targets which can be current while not executing. In that |
| case this will become true after target_create_inferior or |
| target_attach. */ |
| |
| extern int target_has_execution_1 (void); |
| #define target_has_execution target_has_execution_1 () |
| |
| /* Default implementations for process_stratum targets. Return true |
| if there's a selected inferior, false otherwise. */ |
| |
| extern int default_child_has_all_memory (struct target_ops *ops); |
| extern int default_child_has_memory (struct target_ops *ops); |
| extern int default_child_has_stack (struct target_ops *ops); |
| extern int default_child_has_registers (struct target_ops *ops); |
| extern int default_child_has_execution (struct target_ops *ops); |
| |
| /* Can the target support the debugger control of thread execution? |
| Can it lock the thread scheduler? */ |
| |
| #define target_can_lock_scheduler \ |
| (current_target.to_has_thread_control & tc_schedlock) |
| |
| /* Should the target enable async mode if it is supported? Temporary |
| cludge until async mode is a strict superset of sync mode. */ |
| extern int target_async_permitted; |
| |
| /* Can the target support asynchronous execution? */ |
| #define target_can_async_p() (current_target.to_can_async_p ()) |
| |
| /* Is the target in asynchronous execution mode? */ |
| #define target_is_async_p() (current_target.to_is_async_p ()) |
| |
| int target_supports_non_stop (void); |
| |
| /* Put the target in async mode with the specified callback function. */ |
| #define target_async(CALLBACK,CONTEXT) \ |
| (current_target.to_async ((CALLBACK), (CONTEXT))) |
| |
| /* This is to be used ONLY within call_function_by_hand(). It provides |
| a workaround, to have inferior function calls done in sychronous |
| mode, even though the target is asynchronous. After |
| target_async_mask(0) is called, calls to target_can_async_p() will |
| return FALSE , so that target_resume() will not try to start the |
| target asynchronously. After the inferior stops, we IMMEDIATELY |
| restore the previous nature of the target, by calling |
| target_async_mask(1). After that, target_can_async_p() will return |
| TRUE. ANY OTHER USE OF THIS FEATURE IS DEPRECATED. |
| |
| FIXME ezannoni 1999-12-13: we won't need this once we move |
| the turning async on and off to the single execution commands, |
| from where it is done currently, in remote_resume(). */ |
| |
| #define target_async_mask(MASK) \ |
| (current_target.to_async_mask (MASK)) |
| |
| /* Converts a process id to a string. Usually, the string just contains |
| `process xyz', but on some systems it may contain |
| `process xyz thread abc'. */ |
| |
| extern char *target_pid_to_str (ptid_t ptid); |
| |
| extern char *normal_pid_to_str (ptid_t ptid); |
| |
| /* Return a short string describing extra information about PID, |
| e.g. "sleeping", "runnable", "running on LWP 3". Null return value |
| is okay. */ |
| |
| #define target_extra_thread_info(TP) \ |
| (current_target.to_extra_thread_info (TP)) |
| |
| /* Attempts to find the pathname of the executable file |
| that was run to create a specified process. |
| |
| The process PID must be stopped when this operation is used. |
| |
| If the executable file cannot be determined, NULL is returned. |
| |
| Else, a pointer to a character string containing the pathname |
| is returned. This string should be copied into a buffer by |
| the client if the string will not be immediately used, or if |
| it must persist. */ |
| |
| #define target_pid_to_exec_file(pid) \ |
| (current_target.to_pid_to_exec_file) (pid) |
| |
| /* |
| * Iterator function for target memory regions. |
| * Calls a callback function once for each memory region 'mapped' |
| * in the child process. Defined as a simple macro rather than |
| * as a function macro so that it can be tested for nullity. |
| */ |
| |
| #define target_find_memory_regions(FUNC, DATA) \ |
| (current_target.to_find_memory_regions) (FUNC, DATA) |
| |
| /* |
| * Compose corefile .note section. |
| */ |
| |
| #define target_make_corefile_notes(BFD, SIZE_P) \ |
| (current_target.to_make_corefile_notes) (BFD, SIZE_P) |
| |
| /* Hardware watchpoint interfaces. */ |
| |
| /* Returns non-zero if we were stopped by a hardware watchpoint (memory read or |
| write). */ |
| |
| #define target_stopped_by_watchpoint \ |
| (*current_target.to_stopped_by_watchpoint) |
| |
| /* Non-zero if we have steppable watchpoints */ |
| |
| #define target_have_steppable_watchpoint \ |
| (current_target.to_have_steppable_watchpoint) |
| |
| /* Non-zero if we have continuable watchpoints */ |
| |
| #define target_have_continuable_watchpoint \ |
| (current_target.to_have_continuable_watchpoint) |
| |
| /* Provide defaults for hardware watchpoint functions. */ |
| |
| /* If the *_hw_beakpoint functions have not been defined |
| elsewhere use the definitions in the target vector. */ |
| |
| /* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is |
| one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or |
| bp_hardware_breakpoint. CNT is the number of such watchpoints used so far |
| (including this one?). OTHERTYPE is who knows what... */ |
| |
| #define target_can_use_hardware_watchpoint(TYPE,CNT,OTHERTYPE) \ |
| (*current_target.to_can_use_hw_breakpoint) (TYPE, CNT, OTHERTYPE); |
| |
| #define target_region_ok_for_hw_watchpoint(addr, len) \ |
| (*current_target.to_region_ok_for_hw_watchpoint) (addr, len) |
| |
| |
| /* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes. TYPE is 0 |
| for write, 1 for read, and 2 for read/write accesses. Returns 0 for |
| success, non-zero for failure. */ |
| |
| #define target_insert_watchpoint(addr, len, type) \ |
| (*current_target.to_insert_watchpoint) (addr, len, type) |
| |
| #define target_remove_watchpoint(addr, len, type) \ |
| (*current_target.to_remove_watchpoint) (addr, len, type) |
| |
| #define target_insert_hw_breakpoint(bp_tgt) \ |
| (*current_target.to_insert_hw_breakpoint) (bp_tgt) |
| |
| #define target_remove_hw_breakpoint(bp_tgt) \ |
| (*current_target.to_remove_hw_breakpoint) (bp_tgt) |
| |
| #define target_stopped_data_address(target, x) \ |
| (*target.to_stopped_data_address) (target, x) |
| |
| #define target_watchpoint_addr_within_range(target, addr, start, length) \ |
| (*target.to_watchpoint_addr_within_range) (target, addr, start, length) |
| |
| /* Target can execute in reverse? */ |
| #define target_can_execute_reverse \ |
| (current_target.to_can_execute_reverse ? \ |
| current_target.to_can_execute_reverse () : 0) |
| |
| extern const struct target_desc *target_read_description (struct target_ops *); |
| |
| #define target_get_ada_task_ptid(lwp, tid) \ |
| (*current_target.to_get_ada_task_ptid) (lwp,tid) |
| |
| /* Utility implementation of searching memory. */ |
| extern int simple_search_memory (struct target_ops* ops, |
| CORE_ADDR start_addr, |
| ULONGEST search_space_len, |
| const gdb_byte *pattern, |
| ULONGEST pattern_len, |
| CORE_ADDR *found_addrp); |
| |
| /* Main entry point for searching memory. */ |
| extern int target_search_memory (CORE_ADDR start_addr, |
| ULONGEST search_space_len, |
| const gdb_byte *pattern, |
| ULONGEST pattern_len, |
| CORE_ADDR *found_addrp); |
| |
| /* Command logging facility. */ |
| |
| #define target_log_command(p) \ |
| do \ |
| if (current_target.to_log_command) \ |
| (*current_target.to_log_command) (p); \ |
| while (0) |
| |
| /* Routines for maintenance of the target structures... |
| |
| add_target: Add a target to the list of all possible targets. |
| |
| push_target: Make this target the top of the stack of currently used |
| targets, within its particular stratum of the stack. Result |
| is 0 if now atop the stack, nonzero if not on top (maybe |
| should warn user). |
| |
| unpush_target: Remove this from the stack of currently used targets, |
| no matter where it is on the list. Returns 0 if no |
| change, 1 if removed from stack. |
| |
| pop_target: Remove the top thing on the stack of current targets. */ |
| |
| extern void add_target (struct target_ops *); |
| |
| extern int push_target (struct target_ops *); |
| |
| extern int unpush_target (struct target_ops *); |
| |
| extern void target_pre_inferior (int); |
| |
| extern void target_preopen (int); |
| |
| extern void pop_target (void); |
| |
| /* Does whatever cleanup is required to get rid of all pushed targets. |
| QUITTING is propagated to target_close; it indicates that GDB is |
| exiting and should not get hung on an error (otherwise it is |
| important to perform clean termination, even if it takes a |
| while). */ |
| extern void pop_all_targets (int quitting); |
| |
| /* Like pop_all_targets, but pops only targets whose stratum is |
| strictly above ABOVE_STRATUM. */ |
| extern void pop_all_targets_above (enum strata above_stratum, int quitting); |
| |
| extern CORE_ADDR target_translate_tls_address (struct objfile *objfile, |
| CORE_ADDR offset); |
| |
| /* Struct target_section maps address ranges to file sections. It is |
| mostly used with BFD files, but can be used without (e.g. for handling |
| raw disks, or files not in formats handled by BFD). */ |
| |
| struct target_section |
| { |
| CORE_ADDR addr; /* Lowest address in section */ |
| CORE_ADDR endaddr; /* 1+highest address in section */ |
| |
| struct bfd_section *the_bfd_section; |
| |
| bfd *bfd; /* BFD file pointer */ |
| }; |
| |
| /* Holds an array of target sections. Defined by [SECTIONS..SECTIONS_END[. */ |
| |
| struct target_section_table |
| { |
| struct target_section *sections; |
| struct target_section *sections_end; |
| }; |
| |
| /* Return the "section" containing the specified address. */ |
| struct target_section *target_section_by_addr (struct target_ops *target, |
| CORE_ADDR addr); |
| |
| /* Return the target section table this target (or the targets |
| beneath) currently manipulate. */ |
| |
| extern struct target_section_table *target_get_section_table |
| (struct target_ops *target); |
| |
| /* From mem-break.c */ |
| |
| extern int memory_remove_breakpoint (struct bp_target_info *); |
| |
| extern int memory_insert_breakpoint (struct bp_target_info *); |
| |
| extern int default_memory_remove_breakpoint (struct gdbarch *, struct bp_target_info *); |
| |
| extern int default_memory_insert_breakpoint (struct gdbarch *, struct bp_target_info *); |
| |
| |
| /* From target.c */ |
| |
| extern void initialize_targets (void); |
| |
| extern NORETURN void noprocess (void) ATTR_NORETURN; |
| |
| extern void target_require_runnable (void); |
| |
| extern void find_default_attach (struct target_ops *, char *, int); |
| |
| extern void find_default_create_inferior (struct target_ops *, |
| char *, char *, char **, int); |
| |
| extern struct target_ops *find_run_target (void); |
| |
| extern struct target_ops *find_core_target (void); |
| |
| extern struct target_ops *find_target_beneath (struct target_ops *); |
| |
| /* Read OS data object of type TYPE from the target, and return it in |
| XML format. The result is NUL-terminated and returned as a string, |
| allocated using xmalloc. If an error occurs or the transfer is |
| unsupported, NULL is returned. Empty objects are returned as |
| allocated but empty strings. */ |
| |
| extern char *target_get_osdata (const char *type); |
| |
| |
| /* Stuff that should be shared among the various remote targets. */ |
| |
| /* Debugging level. 0 is off, and non-zero values mean to print some debug |
| information (higher values, more information). */ |
| extern int remote_debug; |
| |
| /* Speed in bits per second, or -1 which means don't mess with the speed. */ |
| extern int baud_rate; |
| /* Timeout limit for response from target. */ |
| extern int remote_timeout; |
| |
| |
| /* Functions for helping to write a native target. */ |
| |
| /* This is for native targets which use a unix/POSIX-style waitstatus. */ |
| extern void store_waitstatus (struct target_waitstatus *, int); |
| |
| /* These are in common/signals.c, but they're only used by gdb. */ |
| extern enum target_signal default_target_signal_from_host (struct gdbarch *, |
| int); |
| extern int default_target_signal_to_host (struct gdbarch *, |
| enum target_signal); |
| |
| /* Convert from a number used in a GDB command to an enum target_signal. */ |
| extern enum target_signal target_signal_from_command (int); |
| /* End of files in common/signals.c. */ |
| |
| /* Set the show memory breakpoints mode to show, and installs a cleanup |
| to restore it back to the current value. */ |
| extern struct cleanup *make_show_memory_breakpoints_cleanup (int show); |
| |
| |
| /* Imported from machine dependent code */ |
| |
| /* Blank target vector entries are initialized to target_ignore. */ |
| void target_ignore (void); |
| |
| extern struct target_ops deprecated_child_ops; |
| |
| #endif /* !defined (TARGET_H) */ |