/* 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, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1990-2012 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by John Gilmore.
struct ui_file;
struct mem_attrib;
struct target_ops;
+struct bp_location;
struct bp_target_info;
struct regcache;
struct target_section_table;
struct uploaded_tsv;
struct uploaded_tp;
struct static_tracepoint_marker;
-
+struct traceframe_info;
struct expression;
/* This include file defines the interface between the main part
/* The target has run out of history information,
and cannot run backward any further. */
- TARGET_WAITKIND_NO_HISTORY
+ TARGET_WAITKIND_NO_HISTORY,
+
+ /* There are no resumed children left in the program. */
+ TARGET_WAITKIND_NO_RESUMED
};
struct target_waitstatus
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. */
TARGET_OBJECT_AVAILABLE_FEATURES,
/* Currently loaded libraries, in XML format. */
TARGET_OBJECT_LIBRARIES,
+ /* Currently loaded libraries specific for SVR4 systems, in XML format. */
+ TARGET_OBJECT_LIBRARIES_SVR4,
/* Get OS specific data. The ANNEX specifies the type (running
processes, etc.). The data being transfered is expected to follow
the DTD specified in features/osdata.dtd. */
/* The HP-UX registers (those that can be obtained or modified by using
the TT_LWP_RUREGS/TT_LWP_WUREGS ttrace requests). */
TARGET_OBJECT_HPUX_UREGS,
+ /* The HP-UX shared library linkage pointer. ANNEX should be a string
+ image of the code address whose linkage pointer we are looking for.
+
+ The size of the data transfered is always 8 bytes (the size of an
+ address on ia64). */
+ TARGET_OBJECT_HPUX_SOLIB_GOT,
+ /* Traceframe info, in XML format. */
+ TARGET_OBJECT_TRACEFRAME_INFO,
+ /* Load maps for FDPIC systems. */
+ TARGET_OBJECT_FDPIC,
+ /* Darwin dynamic linker info data. */
+ TARGET_OBJECT_DARWIN_DYLD_INFO
/* Possible future objects: TARGET_OBJECT_FILE, ... */
};
int (*to_insert_breakpoint) (struct gdbarch *, struct bp_target_info *);
int (*to_remove_breakpoint) (struct gdbarch *, struct bp_target_info *);
int (*to_can_use_hw_breakpoint) (int, int, int);
+ int (*to_ranged_break_num_registers) (struct target_ops *);
int (*to_insert_hw_breakpoint) (struct gdbarch *, struct bp_target_info *);
int (*to_remove_hw_breakpoint) (struct gdbarch *, struct bp_target_info *);
int (*to_remove_watchpoint) (CORE_ADDR, int, int, struct expression *);
int (*to_insert_watchpoint) (CORE_ADDR, int, int, struct expression *);
+ int (*to_insert_mask_watchpoint) (struct target_ops *,
+ CORE_ADDR, CORE_ADDR, int);
+ int (*to_remove_mask_watchpoint) (struct target_ops *,
+ CORE_ADDR, CORE_ADDR, int);
int (*to_stopped_by_watchpoint) (void);
int to_have_steppable_watchpoint;
int to_have_continuable_watchpoint;
int (*to_can_accel_watchpoint_condition) (CORE_ADDR, int, int,
struct expression *);
+ int (*to_masked_watch_num_registers) (struct target_ops *,
+ CORE_ADDR, CORE_ADDR);
void (*to_terminal_init) (void);
void (*to_terminal_inferior) (void);
void (*to_terminal_ours_for_output) (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);
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);
+
+ /* Documentation of this routine is provided with the corresponding
+ target_* macro. */
+ void (*to_pass_signals) (int, unsigned char *);
+
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 *);
+ char *(*to_thread_name) (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);
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_execution) (struct target_ops *, ptid_t);
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);
/* find_memory_regions support method for gcore */
int (*to_find_memory_regions) (find_memory_region_ftype func, void *data);
/* Can target execute in reverse? */
int (*to_can_execute_reverse) (void);
+ /* The direction the target is currently executing. Must be
+ implemented on targets that support reverse execution and async
+ mode. The default simply returns forward execution. */
+ enum exec_direction_kind (*to_execution_direction) (void);
+
/* Does this target support debugging multiple processes
simultaneously? */
int (*to_supports_multi_process) (void);
+ /* Does this target support enabling and disabling tracepoints while a trace
+ experiment is running? */
+ int (*to_supports_enable_disable_tracepoint) (void);
+
+ /* Does this target support disabling address space randomization? */
+ int (*to_supports_disable_randomization) (void);
+
+ /* Does this target support the tracenz bytecode for string collection? */
+ int (*to_supports_string_tracing) (void);
+
/* Determine current architecture of thread PTID.
The target is supposed to determine the architecture of the code where
struct address_space *(*to_thread_address_space) (struct target_ops *,
ptid_t);
+ /* Target file operations. */
+
+ /* Open FILENAME on the target, using FLAGS and MODE. Return a
+ target file descriptor, or -1 if an error occurs (and set
+ *TARGET_ERRNO). */
+ int (*to_fileio_open) (const char *filename, int flags, int mode,
+ int *target_errno);
+
+ /* Write up to LEN bytes from WRITE_BUF to FD on the target.
+ Return the number of bytes written, or -1 if an error occurs
+ (and set *TARGET_ERRNO). */
+ int (*to_fileio_pwrite) (int fd, const gdb_byte *write_buf, int len,
+ ULONGEST offset, int *target_errno);
+
+ /* Read up to LEN bytes FD on the target into READ_BUF.
+ Return the number of bytes read, or -1 if an error occurs
+ (and set *TARGET_ERRNO). */
+ int (*to_fileio_pread) (int fd, gdb_byte *read_buf, int len,
+ ULONGEST offset, int *target_errno);
+
+ /* Close FD on the target. Return 0, or -1 if an error occurs
+ (and set *TARGET_ERRNO). */
+ int (*to_fileio_close) (int fd, int *target_errno);
+
+ /* Unlink FILENAME on the target. Return 0, or -1 if an error
+ occurs (and set *TARGET_ERRNO). */
+ int (*to_fileio_unlink) (const char *filename, int *target_errno);
+
+ /* Read value of symbolic link FILENAME on the target. Return a
+ null-terminated string allocated via xmalloc, or NULL if an error
+ occurs (and set *TARGET_ERRNO). */
+ char *(*to_fileio_readlink) (const char *filename, int *target_errno);
+
+
+ /* Implement the "info proc" command. */
+ void (*to_info_proc) (struct target_ops *, char *, enum info_proc_what);
+
/* Tracepoint-related operations. */
/* Prepare the target for a tracing run. */
void (*to_trace_init) (void);
- /* Send full details of a tracepoint to the target. */
- void (*to_download_tracepoint) (struct breakpoint *t);
+ /* Send full details of a tracepoint location to the target. */
+ void (*to_download_tracepoint) (struct bp_location *location);
+
+ /* Is the target able to download tracepoint locations in current
+ state? */
+ int (*to_can_download_tracepoint) (void);
/* Send full details of a trace state variable to the target. */
void (*to_download_trace_state_variable) (struct trace_state_variable *tsv);
+ /* Enable a tracepoint on the target. */
+ void (*to_enable_tracepoint) (struct bp_location *location);
+
+ /* Disable a tracepoint on the target. */
+ void (*to_disable_tracepoint) (struct bp_location *location);
+
/* Inform the target info of memory regions that are readonly
(such as text sections), and so it should return data from
those rather than look in the trace buffer. */
/* Get the current status of a tracing run. */
int (*to_get_trace_status) (struct trace_status *ts);
+ void (*to_get_tracepoint_status) (struct breakpoint *tp,
+ struct uploaded_tp *utp);
+
/* Stop a trace run. */
void (*to_trace_stop) (void);
LONGEST (*to_get_raw_trace_data) (gdb_byte *buf,
ULONGEST offset, LONGEST len);
+ /* Get the minimum length of instruction on which a fast tracepoint
+ may be set on the target. If this operation is unsupported,
+ return -1. If for some reason the minimum length cannot be
+ determined, return 0. */
+ int (*to_get_min_fast_tracepoint_insn_len) (void);
+
/* Set the target's tracing behavior in response to unexpected
disconnection - set VAL to 1 to keep tracing, 0 to stop. */
void (*to_set_disconnected_tracing) (int val);
void (*to_set_circular_trace_buffer) (int val);
+ /* Add/change textual notes about the trace run, returning 1 if
+ successful, 0 otherwise. */
+ int (*to_set_trace_notes) (char *user, char *notes, char* stopnotes);
+
/* Return the processor core that thread PTID was last seen on.
This information is updated only when:
- update_thread_list is called
VEC(static_tracepoint_marker_p) *(*to_static_tracepoint_markers_by_strid)
(const char *id);
+ /* Return a traceframe info object describing the current
+ traceframe's contents. This method should not cache data;
+ higher layers take care of caching, invalidating, and
+ re-fetching when necessary. */
+ struct traceframe_info *(*to_traceframe_info) (void);
+
int to_magic;
/* Need sub-structure for target machine related rather than comm related?
*/
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. */
+ is automatically always called after popping the target off the
+ target stack - the target's own methods are no longer available
+ through the target vector. Closing file descriptors and freeing all
+ memory allocated memory are typical things it should do. */
void target_close (struct target_ops *targ, int quitting);
struct address_space *target_thread_address_space (ptid_t);
+/* Implement the "info proc" command. */
+
+void target_info_proc (char *, enum info_proc_what);
+
/* Returns true if this target can debug multiple processes
simultaneously. */
#define target_supports_multi_process() \
(*current_target.to_supports_multi_process) ()
+/* Returns true if this target can disable address space randomization. */
+
+int target_supports_disable_randomization (void);
+
+/* Returns true if this target can enable and disable tracepoints
+ while a trace experiment is running. */
+
+#define target_supports_enable_disable_tracepoint() \
+ (*current_target.to_supports_enable_disable_tracepoint) ()
+
+#define target_supports_string_tracing() \
+ (*current_target.to_supports_string_tracing) ()
+
/* Invalidate all target dcaches. */
extern void target_dcache_invalidate (void);
extern int target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
int len);
+extern int target_write_raw_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. */
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.
#define target_can_run(t) \
((t)->to_can_run) ()
-/* post process changes to signal handling in the inferior. */
+/* Set list of signals to be handled in the target.
+
+ PASS_SIGNALS is an array of size NSIG, indexed by target signal number
+ (enum target_signal). For every signal whose entry in this array is
+ non-zero, the target is allowed -but not required- to skip reporting
+ arrival of the signal to the GDB core by returning from target_wait,
+ and to pass the signal directly to the inferior instead.
-#define target_notice_signals(ptid) \
- (*current_target.to_notice_signals) (ptid)
+ However, if the target is hardware single-stepping a thread that is
+ about to receive a signal, it needs to be reported in any case, even
+ if mentioned in a previous target_pass_signals call. */
+
+extern void target_pass_signals (int nsig, unsigned char *pass_signals);
/* Check to see if a thread is still alive. */
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 ()
+extern int target_has_execution_1 (ptid_t);
+
+/* Like target_has_execution_1, but always passes inferior_ptid. */
+
+extern int target_has_execution_current (void);
+
+#define target_has_execution target_has_execution_current ()
/* Default implementations for process_stratum targets. Return true
if there's a selected inferior, false otherwise. */
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);
+extern int default_child_has_execution (struct target_ops *ops,
+ ptid_t the_ptid);
/* Can the target support the debugger control of thread execution?
Can it lock the thread scheduler? */
#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))
+#define target_execution_direction() \
+ (current_target.to_execution_direction ())
/* Converts a process id to a string. Usually, the string just contains
`process xyz', but on some systems it may contain
#define target_extra_thread_info(TP) \
(current_target.to_extra_thread_info (TP))
+/* Return the thread's name. A NULL result means that the target
+ could not determine this thread's name. */
+
+extern char *target_thread_name (struct thread_info *);
+
/* Attempts to find the pathname of the executable file
that was run to create a specified process.
#define target_remove_watchpoint(addr, len, type, cond) \
(*current_target.to_remove_watchpoint) (addr, len, type, cond)
+/* Insert a new masked watchpoint at ADDR using the mask MASK.
+ RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
+ or hw_access for an access watchpoint. Returns 0 for success, 1 if
+ masked watchpoints are not supported, -1 for failure. */
+
+extern int target_insert_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
+
+/* Remove a masked watchpoint at ADDR with the mask MASK.
+ RW may be hw_read for a read watchpoint, hw_write for a write watchpoint
+ or hw_access for an access watchpoint. Returns 0 for success, non-zero
+ for failure. */
+
+extern int target_remove_mask_watchpoint (CORE_ADDR, CORE_ADDR, int);
+
#define target_insert_hw_breakpoint(gdbarch, bp_tgt) \
(*current_target.to_insert_hw_breakpoint) (gdbarch, bp_tgt)
#define target_remove_hw_breakpoint(gdbarch, bp_tgt) \
(*current_target.to_remove_hw_breakpoint) (gdbarch, bp_tgt)
+/* Return number of debug registers needed for a ranged breakpoint,
+ or -1 if ranged breakpoints are not supported. */
+
+extern int target_ranged_break_num_registers (void);
+
/* Return non-zero if target knows the data address which triggered this
target_stopped_by_watchpoint, in such case place it to *ADDR_P. Only the
INFERIOR_PTID task is being queried. */
#define target_can_accel_watchpoint_condition(addr, len, type, cond) \
(*current_target.to_can_accel_watchpoint_condition) (addr, len, type, cond)
+/* Return number of debug registers needed for a masked watchpoint,
+ -1 if masked watchpoints are not supported or -2 if the given address
+ and mask combination cannot be used. */
+
+extern int target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask);
+
/* Target can execute in reverse? */
#define target_can_execute_reverse \
(current_target.to_can_execute_reverse ? \
ULONGEST pattern_len,
CORE_ADDR *found_addrp);
+/* Target file operations. */
+
+/* Open FILENAME on the target, using FLAGS and MODE. Return a
+ target file descriptor, or -1 if an error occurs (and set
+ *TARGET_ERRNO). */
+extern int target_fileio_open (const char *filename, int flags, int mode,
+ int *target_errno);
+
+/* Write up to LEN bytes from WRITE_BUF to FD on the target.
+ Return the number of bytes written, or -1 if an error occurs
+ (and set *TARGET_ERRNO). */
+extern int target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
+ ULONGEST offset, int *target_errno);
+
+/* Read up to LEN bytes FD on the target into READ_BUF.
+ Return the number of bytes read, or -1 if an error occurs
+ (and set *TARGET_ERRNO). */
+extern int target_fileio_pread (int fd, gdb_byte *read_buf, int len,
+ ULONGEST offset, int *target_errno);
+
+/* Close FD on the target. Return 0, or -1 if an error occurs
+ (and set *TARGET_ERRNO). */
+extern int target_fileio_close (int fd, int *target_errno);
+
+/* Unlink FILENAME on the target. Return 0, or -1 if an error
+ occurs (and set *TARGET_ERRNO). */
+extern int target_fileio_unlink (const char *filename, int *target_errno);
+
+/* Read value of symbolic link FILENAME on the target. Return a
+ null-terminated string allocated via xmalloc, or NULL if an error
+ occurs (and set *TARGET_ERRNO). */
+extern char *target_fileio_readlink (const char *filename, int *target_errno);
+
+/* Read target file FILENAME. 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. */
+extern LONGEST target_fileio_read_alloc (const char *filename,
+ gdb_byte **buf_p);
+
+/* Read target file FILENAME. 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_fileio_read_stralloc (const char *filename);
+
+
/* Tracepoint-related operations. */
#define target_trace_init() \
#define target_download_tracepoint(t) \
(*current_target.to_download_tracepoint) (t)
+#define target_can_download_tracepoint() \
+ (*current_target.to_can_download_tracepoint) ()
+
#define target_download_trace_state_variable(tsv) \
(*current_target.to_download_trace_state_variable) (tsv)
+#define target_enable_tracepoint(loc) \
+ (*current_target.to_enable_tracepoint) (loc)
+
+#define target_disable_tracepoint(loc) \
+ (*current_target.to_disable_tracepoint) (loc)
+
#define target_trace_start() \
(*current_target.to_trace_start) ()
#define target_get_trace_status(ts) \
(*current_target.to_get_trace_status) (ts)
+#define target_get_tracepoint_status(tp,utp) \
+ (*current_target.to_get_tracepoint_status) (tp, utp)
+
#define target_trace_stop() \
(*current_target.to_trace_stop) ()
#define target_get_raw_trace_data(buf,offset,len) \
(*current_target.to_get_raw_trace_data) ((buf), (offset), (len))
+#define target_get_min_fast_tracepoint_insn_len() \
+ (*current_target.to_get_min_fast_tracepoint_insn_len) ()
+
#define target_set_disconnected_tracing(val) \
(*current_target.to_set_disconnected_tracing) (val)
#define target_set_circular_trace_buffer(val) \
(*current_target.to_set_circular_trace_buffer) (val)
+#define target_set_trace_notes(user,notes,stopnotes) \
+ (*current_target.to_set_trace_notes) ((user), (notes), (stopnotes))
+
#define target_get_tib_address(ptid, addr) \
(*current_target.to_get_tib_address) ((ptid), (addr))
#define target_static_tracepoint_markers_by_strid(marker_id) \
(*current_target.to_static_tracepoint_markers_by_strid) (marker_id)
+#define target_traceframe_info() \
+ (*current_target.to_traceframe_info) ()
+
/* Command logging facility. */
#define target_log_command(p) \
/* Blank target vector entries are initialized to target_ignore. */
void target_ignore (void);
-extern struct target_ops deprecated_child_ops;
-
#endif /* !defined (TARGET_H) */
projects / deliverable / binutils-gdb.git / blobdiff