/* Interface between GDB and target environments, including files and processes
- Copyright (C) 1990-2017 Free Software Foundation, Inc.
+ Copyright (C) 1990-2018 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by John Gilmore.
#include "infrun.h" /* For enum exec_direction_kind. */
#include "breakpoint.h" /* For enum bptype. */
+#include "common/scoped_restore.h"
/* This include file defines the interface between the main part
of the debugger, and the part which is target-specific, or
#include "btrace.h"
#include "record.h"
#include "command.h"
+#include "disasm.h"
+#include "tracepoint.h"
#include "break-common.h" /* For enum target_hw_bp_type. */
const char *name;
};
-/* 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 *);
-
/* Return a pretty printed form of TARGET_OPTIONS.
Space for the result is malloc'd, caller must free. */
extern char *target_options_to_string (int target_options);
TARGET_OBJECT_THREADS,
/* Collected static trace data. */
TARGET_OBJECT_STATIC_TRACE_DATA,
- /* 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. */
extern const char *
target_xfer_status_to_string (enum target_xfer_status status);
-/* Enumeration of the kinds of traceframe searches that a target may
- be able to perform. */
-
-enum trace_find_type
- {
- tfind_number,
- tfind_pc,
- tfind_tp,
- tfind_range,
- tfind_outside,
- };
-
typedef struct static_tracepoint_marker *static_tracepoint_marker_p;
DEF_VEC_P(static_tracepoint_marker_p);
ULONGEST offset, LONGEST len);
struct memory_read_result
+{
+ memory_read_result (ULONGEST begin_, ULONGEST end_,
+ gdb::unique_xmalloc_ptr<gdb_byte> &&data_)
+ : begin (begin_),
+ end (end_),
+ data (std::move (data_))
{
- /* First address that was read. */
- ULONGEST begin;
- /* Past-the-end address. */
- ULONGEST end;
- /* The data. */
- gdb_byte *data;
-};
-typedef struct memory_read_result memory_read_result_s;
-DEF_VEC_O(memory_read_result_s);
+ }
-extern void free_memory_read_result_vector (void *);
+ ~memory_read_result () = default;
-extern VEC(memory_read_result_s)* read_memory_robust (struct target_ops *ops,
- const ULONGEST offset,
- const LONGEST len);
+ memory_read_result (memory_read_result &&other) = default;
+
+ DISABLE_COPY_AND_ASSIGN (memory_read_result);
+
+ /* First address that was read. */
+ ULONGEST begin;
+ /* Past-the-end address. */
+ ULONGEST end;
+ /* The data. */
+ gdb::unique_xmalloc_ptr<gdb_byte> data;
+};
+
+extern std::vector<memory_read_result> read_memory_robust
+ (struct target_ops *ops, const ULONGEST offset, const LONGEST len);
/* Request that OPS transfer up to LEN addressable units from BUF to the
target's OBJECT. When writing to a memory object, the addressable unit
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. */
+ returned as a string. 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);
+extern gdb::unique_xmalloc_ptr<char> target_read_stralloc
+ (struct target_ops *ops, enum target_object object, const char *annex);
/* See target_ops->to_xfer_partial. */
extern target_xfer_partial_ftype target_xfer_partial;
void (*to_attach) (struct target_ops *ops, const char *, int);
void (*to_post_attach) (struct target_ops *, int)
TARGET_DEFAULT_IGNORE ();
- void (*to_detach) (struct target_ops *ops, const char *, int)
+ void (*to_detach) (struct target_ops *ops, inferior *, int)
TARGET_DEFAULT_IGNORE ();
void (*to_disconnect) (struct target_ops *, const char *, int)
TARGET_DEFAULT_NORETURN (tcomplain ());
TARGET_DEFAULT_IGNORE ();
void (*to_terminal_inferior) (struct target_ops *)
TARGET_DEFAULT_IGNORE ();
+ void (*to_terminal_save_inferior) (struct target_ops *)
+ TARGET_DEFAULT_IGNORE ();
void (*to_terminal_ours_for_output) (struct target_ops *)
TARGET_DEFAULT_IGNORE ();
void (*to_terminal_ours) (struct target_ops *)
void (*to_follow_exec) (struct target_ops *, struct inferior *, char *)
TARGET_DEFAULT_IGNORE ();
int (*to_set_syscall_catchpoint) (struct target_ops *,
- int, int, int, int, int *)
+ int, bool, int,
+ gdb::array_view<const int>)
TARGET_DEFAULT_RETURN (1);
int (*to_has_exited) (struct target_ops *, int, int, int *)
TARGET_DEFAULT_RETURN (0);
TARGET_DEFAULT_RETURN (NULL);
const char *(*to_thread_name) (struct target_ops *, struct thread_info *)
TARGET_DEFAULT_RETURN (NULL);
+ struct thread_info *(*to_thread_handle_to_thread_info) (struct target_ops *,
+ const gdb_byte *,
+ int,
+ struct inferior *inf)
+ TARGET_DEFAULT_RETURN (NULL);
void (*to_stop) (struct target_ops *, ptid_t)
TARGET_DEFAULT_IGNORE ();
- void (*to_interrupt) (struct target_ops *, ptid_t)
+ void (*to_interrupt) (struct target_ops *)
TARGET_DEFAULT_IGNORE ();
void (*to_pass_ctrlc) (struct target_ops *)
TARGET_DEFAULT_FUNC (default_target_pass_ctrlc);
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 *)
- TARGET_DEFAULT_RETURN (NULL);
+ std::vector<mem_region> (*to_memory_map) (struct target_ops *)
+ TARGET_DEFAULT_RETURN (std::vector<mem_region> ());
/* Erases the region of flash memory starting at ADDRESS, of
length LENGTH.
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) (struct target_ops *)
- TARGET_DEFAULT_NORETURN (tcomplain ());
+ traceframe_info_up (*to_traceframe_info) (struct target_ops *)
+ TARGET_DEFAULT_NORETURN (tcomplain ());
/* Ask the target to use or not to use agent according to USE. Return 1
successful, 0 otherwise. */
int (*to_can_use_agent) (struct target_ops *)
TARGET_DEFAULT_RETURN (0);
- /* Check whether the target supports branch tracing. */
- int (*to_supports_btrace) (struct target_ops *, enum btrace_format)
- TARGET_DEFAULT_RETURN (0);
-
/* Enable branch tracing for PTID using CONF configuration.
Return a branch trace target information struct for reading and for
disabling branch trace. */
the current position.
If SIZE < 0, disassemble abs (SIZE) preceding instructions; otherwise,
disassemble SIZE succeeding instructions. */
- void (*to_insn_history) (struct target_ops *, int size, int flags)
+ void (*to_insn_history) (struct target_ops *, int size,
+ gdb_disassembly_flags flags)
TARGET_DEFAULT_NORETURN (tcomplain ());
/* Disassemble SIZE instructions in the recorded execution trace around
If SIZE < 0, disassemble abs (SIZE) instructions before FROM; otherwise,
disassemble SIZE instructions after FROM. */
void (*to_insn_history_from) (struct target_ops *,
- ULONGEST from, int size, int flags)
+ ULONGEST from, int size,
+ gdb_disassembly_flags flags)
TARGET_DEFAULT_NORETURN (tcomplain ());
/* Disassemble a section of the recorded execution trace from instruction
BEGIN (inclusive) to instruction END (inclusive). */
void (*to_insn_history_range) (struct target_ops *,
- ULONGEST begin, ULONGEST end, int flags)
+ ULONGEST begin, ULONGEST end,
+ gdb_disassembly_flags flags)
TARGET_DEFAULT_NORETURN (tcomplain ());
/* Print a function trace of the recorded execution trace.
/* 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. */
+ in the program or it'll die when it hits one. FROM_TTY says whether to be
+ verbose or not. */
-extern void target_detach (const char *, int);
+extern void target_detach (inferior *inf, int from_tty);
/* Disconnect from the current target without resuming it (leaving it
waiting for a debugger). */
coalesce multiple resumption requests in a single vCont packet. */
extern void target_commit_resume ();
-/* Setup to defer target_commit_resume calls, and return a cleanup
- that reactivates target_commit_resume, if it was previously
+/* Setup to defer target_commit_resume calls, and reactivate
+ target_commit_resume on destruction, if it was previously
active. */
-struct cleanup *make_cleanup_defer_target_commit_resume ();
+extern scoped_restore_tmpl<int> make_scoped_defer_target_commit_resume ();
/* For target_read_memory see target/target.h. */
/* 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);
+std::vector<mem_region> target_memory_map (void);
/* Erases all flash memory regions on the target. */
-void flash_erase_command (char *cmd, int from_tty);
+void flash_erase_command (const char *cmd, int from_tty);
/* Erase the specified flash region. */
void target_flash_erase (ULONGEST address, LONGEST length);
struct bp_target_info *bp_tgt,
enum remove_bp_reason reason);
-/* Returns true if the terminal settings of the inferior are in
- effect. */
-
-extern int target_terminal_is_inferior (void);
-
-/* Returns true if our terminal settings are in effect. */
-
-extern int target_terminal_is_ours (void);
-
-/* For target_terminal_init, target_terminal_inferior and
- target_terminal_ours, see target/target.h. */
-
-/* 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. This is a no-op if terminal_ours
- was most recently called. This is a no-op unless called with the main
- UI as current UI. */
-
-extern void target_terminal_ours_for_output (void);
-
/* Return true if the target stack has a non-default
"to_terminal_ours" method. */
extern int target_supports_terminal_ours (void);
-/* Make a cleanup that restores the state of the terminal to the current
- state. */
-extern struct cleanup *make_cleanup_restore_target_terminal (void);
-
-/* Print useful information about our terminal status, if such a thing
- exists. */
-
-#define target_terminal_info(arg, from_tty) \
- (*current_target.to_terminal_info) (¤t_target, arg, from_tty)
-
/* Kill the inferior process. Make it go away. */
extern void target_kill (void);
/* Syscall catch.
- NEEDED is nonzero if any syscall catch (of any kind) is requested.
- If NEEDED is zero, it means the target can disable the mechanism to
+ NEEDED is true if any syscall catch (of any kind) is requested.
+ If NEEDED is false, it means the target can disable the mechanism to
catch system calls because there are no more catchpoints of this type.
ANY_COUNT is nonzero if a generic (filter-less) syscall catch is
- being requested. In this case, both TABLE_SIZE and TABLE should
- be ignored.
-
- TABLE_SIZE is the number of elements in TABLE. It only matters if
- ANY_COUNT is zero.
+ being requested. In this case, SYSCALL_COUNTS should be ignored.
- TABLE is an array of ints, indexed by syscall number. An element in
- this array is nonzero if that syscall should be caught. This argument
- only matters if ANY_COUNT is zero.
+ SYSCALL_COUNTS is an array of ints, indexed by syscall number. An
+ element in this array is nonzero if that syscall should be caught.
+ This argument only matters if ANY_COUNT is zero.
Return 0 for success, 1 if syscall catchpoints are not supported or -1
for failure. */
-#define target_set_syscall_catchpoint(pid, needed, any_count, table_size, table) \
+#define target_set_syscall_catchpoint(pid, needed, any_count, syscall_counts) \
(*current_target.to_set_syscall_catchpoint) (¤t_target, \
pid, needed, any_count, \
- table_size, table)
+ syscall_counts)
/* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
exit code of PID, if any. */
extern void target_stop (ptid_t ptid);
-/* Interrupt the target just like the user typed a ^C on the
- inferior's controlling terminal. (For instance, under Unix, this
- should act like SIGINT). This function is asynchronous. */
+/* Interrupt the target. Unlike target_stop, this does not specify
+ which thread/process reports the stop. For most target this acts
+ like raising a SIGINT, though that's not absolutely required. This
+ function is asynchronous. */
-extern void target_interrupt (ptid_t ptid);
+extern void target_interrupt ();
/* Pass a ^C, as determined to have been pressed by checking the quit
- flag, to the target. Normally calls target_interrupt, but remote
- targets may take the opportunity to detect the remote side is not
- responding and offer to disconnect. */
+ flag, to the target, as if the user had typed the ^C on the
+ inferior's controlling terminal while the inferior was in the
+ foreground. Remote targets may take the opportunity to detect the
+ remote side is not responding and offer to disconnect. */
extern void target_pass_ctrlc (void);
extern const char *target_thread_name (struct thread_info *);
+/* Given a pointer to a thread library specific thread handle and
+ its length, return a pointer to the corresponding thread_info struct. */
+
+extern struct thread_info *target_thread_handle_to_thread_info
+ (const gdb_byte *thread_handle, int handle_len, struct inferior *inf);
+
/* Attempts to find the pathname of the executable file
that was run to create a specified process.
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 (struct inferior *inf,
- const char *filename);
+extern gdb::unique_xmalloc_ptr<char> target_fileio_read_stralloc
+ (struct inferior *inf, const char *filename);
/* Tracepoint-related operations. */
struct target_ops *find_target_at (enum strata stratum);
/* 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. */
+ XML format. The result is NUL-terminated and returned as a string.
+ 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);
+extern gdb::unique_xmalloc_ptr<char> target_get_osdata (const char *type);
\f
/* Stuff that should be shared among the various remote targets. */
\f
-/* 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);
+/* Set the show memory breakpoints mode to show, and return a
+ scoped_restore to restore it back to the current value. */
+extern scoped_restore_tmpl<int>
+ make_scoped_restore_show_memory_breakpoints (int show);
extern int may_write_registers;
extern int may_write_memory;
\f
/* Imported from machine dependent code. */
-/* See to_supports_btrace in struct target_ops. */
-extern int target_supports_btrace (enum btrace_format);
-
/* See to_enable_btrace in struct target_ops. */
extern struct btrace_target_info *
target_enable_btrace (ptid_t ptid, const struct btrace_config *);
extern void target_goto_record (ULONGEST insn);
/* See to_insn_history. */
-extern void target_insn_history (int size, int flags);
+extern void target_insn_history (int size, gdb_disassembly_flags flags);
/* See to_insn_history_from. */
-extern void target_insn_history_from (ULONGEST from, int size, int flags);
+extern void target_insn_history_from (ULONGEST from, int size,
+ gdb_disassembly_flags flags);
/* See to_insn_history_range. */
-extern void target_insn_history_range (ULONGEST begin, ULONGEST end, int flags);
+extern void target_insn_history_range (ULONGEST begin, ULONGEST end,
+ gdb_disassembly_flags flags);
/* See to_call_history. */
extern void target_call_history (int size, int flags);
/* See to_done_generating_core. */
extern void target_done_generating_core (void);
+#if GDB_SELF_TEST
+namespace selftests {
+
+/* A mock process_stratum target_ops that doesn't read/write registers
+ anywhere. */
+
+class test_target_ops : public target_ops
+{
+public:
+ test_target_ops ();
+};
+} // namespace selftests
+#endif /* GDB_SELF_TEST */
+
#endif /* !defined (TARGET_H) */
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