/* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
for now. */
/* Basic, host-specific, and target-specific definitions for GDB.
- Copyright (C) 1986-2014 Free Software Foundation, Inc.
+ Copyright (C) 1986-2019 Free Software Foundation, Inc.
This file is part of GDB.
# error gdbserver should not include gdb/defs.h
#endif
-#include "common-defs.h"
+#include "gdbsupport/common-defs.h"
#include <sys/types.h>
#include <limits.h>
-#include <stdint.h>
/* The libdecnumber library, on which GDB depends, includes a header file
called gstdint.h instead of relying directly on stdint.h. GDB, on the
#include "ui-file.h"
-#include "host-defs.h"
+#include "gdbsupport/host-defs.h"
+#include "gdbsupport/enum-flags.h"
/* Scope types enumerator. List the types of scopes the compiler will
accept. */
/* Do not wrap the expression,
it has to provide function "_gdb_expr" on its own. */
COMPILE_I_RAW_SCOPE,
+
+ /* A printable expression scope. Wrap an expression into a scope
+ suitable for the "compile print" command. It uses the generic
+ function name "_gdb_expr". COMPILE_I_PRINT_ADDRESS_SCOPE variant
+ is the usual one, taking address of the object.
+ COMPILE_I_PRINT_VALUE_SCOPE is needed for arrays where the array
+ name already specifies its address. See get_out_value_type. */
+ COMPILE_I_PRINT_ADDRESS_SCOPE,
+ COMPILE_I_PRINT_VALUE_SCOPE,
};
+
+template<typename T>
+using RequireLongest = gdb::Requires<gdb::Or<std::is_same<T, LONGEST>,
+ std::is_same<T, ULONGEST>>>;
+
/* Just in case they're not defined in stdio.h. */
#ifndef SEEK_SET
#include "hashtab.h"
-#ifndef min
-#define min(a, b) ((a) < (b) ? (a) : (b))
-#endif
-#ifndef max
-#define max(a, b) ((a) > (b) ? (a) : (b))
-#endif
-
-/* * Enable xdb commands if set. */
-extern int xdb_commands;
-
/* * Enable dbx commands if set. */
extern int dbx_commands;
extern char *gdb_sysroot;
/* * GDB datadir, used to store data files. */
-extern char *gdb_datadir;
+extern std::string gdb_datadir;
-/* * If non-NULL, the possibly relocated path to python's "lib" directory
+/* * If not empty, the possibly relocated path to python's "lib" directory
specified with --with-python. */
-extern char *python_libdir;
+extern std::string python_libdir;
/* * Search path for separate debug files. */
extern char *debug_file_directory;
-/* GDB has two methods for handling SIGINT. When immediate_quit is
- nonzero, a SIGINT results in an immediate longjmp out of the signal
- handler. Otherwise, SIGINT simply sets a flag; code that might
- take a long time, and which ought to be interruptible, checks this
- flag using the QUIT macro.
+/* GDB's SIGINT handler basically sets a flag; code that might take a
+ long time before it gets back to the event loop, and which ought to
+ be interruptible, checks this flag using the QUIT macro, which, if
+ GDB has the terminal, throws a quit exception.
+
+ In addition to setting a flag, the SIGINT handler also marks a
+ select/poll-able file descriptor as read-ready. That is used by
+ interruptible_select in order to support interrupting blocking I/O
+ in a race-free manner.
These functions use the extension_language_ops API to allow extension
language(s) and GDB SIGINT handling to coexist seamlessly. */
-/* * Clear the quit flag. */
-extern void clear_quit_flag (void);
/* * Evaluate to non-zero if the quit flag is set, zero otherwise. This
will clear the quit flag as a side effect. */
extern int check_quit_flag (void);
/* * Set the quit flag. */
extern void set_quit_flag (void);
+/* The current quit handler (and its type). This is called from the
+ QUIT macro. See default_quit_handler below for default behavior.
+ Parts of GDB temporarily override this to e.g., completely suppress
+ Ctrl-C because it would not be safe to throw. E.g., normally, you
+ wouldn't want to quit between a RSP command and its response, as
+ that would break the communication with the target, but you may
+ still want to intercept the Ctrl-C and offer to disconnect if the
+ user presses Ctrl-C multiple times while the target is stuck
+ waiting for the wedged remote stub. */
+typedef void (quit_handler_ftype) (void);
+extern quit_handler_ftype *quit_handler;
+
+/* The default quit handler. Checks whether Ctrl-C was pressed, and
+ if so:
+
+ - If GDB owns the terminal, throws a quit exception.
+
+ - If GDB does not own the terminal, forwards the Ctrl-C to the
+ target.
+*/
+extern void default_quit_handler (void);
+
/* Flag that function quit should call quit_force. */
extern volatile int sync_quit_force_run;
-extern int immediate_quit;
-
extern void quit (void);
-/* FIXME: cagney/2000-03-13: It has been suggested that the peformance
- benefits of having a ``QUIT'' macro rather than a function are
- marginal. If the overhead of a QUIT function call is proving
- significant then its calling frequency should probably be reduced
- [kingdon]. A profile analyzing the current situtation is
- needed. */
+/* Helper for the QUIT macro. */
-#define QUIT { \
- if (check_quit_flag () || sync_quit_force_run) quit (); \
- if (deprecated_interactive_hook) deprecated_interactive_hook (); \
-}
+extern void maybe_quit (void);
+
+/* Check whether a Ctrl-C was typed, and if so, call the current quit
+ handler. */
+#define QUIT maybe_quit ()
+
+/* Set the serial event associated with the quit flag. */
+extern void quit_serial_event_set (void);
+
+/* Clear the serial event associated with the quit flag. */
+extern void quit_serial_event_clear (void);
/* * Languages represented in the symbol table and elsewhere.
This should probably be in language.h, but since enum's can't
be forward declared to satisfy opaque references before their
- actual definition, needs to be here. */
+ actual definition, needs to be here.
+
+ The constants here are in priority order. In particular,
+ demangling is attempted according to this order.
+
+ Note that there's ambiguity between the mangling schemes of some of
+ these languages, so some symbols could be successfully demangled by
+ several languages. For that reason, the constants here are sorted
+ in the order we'll attempt demangling them. For example: Rust uses
+ C++ mangling, so must come after C++; Ada must come last (see
+ ada_sniff_from_mangled_name). (Keep this order in sync with the
+ 'languages' array in language.c.) */
enum language
{
language_unknown, /* Language not known */
language_auto, /* Placeholder for automatic setting */
language_c, /* C */
+ language_objc, /* Objective-C */
language_cplus, /* C++ */
language_d, /* D */
language_go, /* Go */
- language_objc, /* Objective-C */
- language_java, /* Java */
language_fortran, /* Fortran */
language_m2, /* Modula-2 */
language_asm, /* Assembly language */
language_pascal, /* Pascal */
- language_ada, /* Ada */
language_opencl, /* OpenCL */
+ language_rust, /* Rust */
language_minimal, /* All other languages, minimal support only */
+ language_ada, /* Ada */
nr_languages
};
+/* The number of bits needed to represent all languages, with enough
+ padding to allow for reasonable growth. */
+#define LANGUAGE_BITS 5
+gdb_static_assert (nr_languages <= (1 << LANGUAGE_BITS));
+
enum precision_type
{
single_precision,
/* This really belong in utils.c (path-utils.c?), but it references some
globals that are currently only available to main.c. */
-extern char *relocate_gdb_directory (const char *initial, int flag);
+extern std::string relocate_gdb_directory (const char *initial, bool relocatable);
\f
/* Annotation stuff. */
"const char *" in unistd.h, so we can't declare the argument
as "char *". */
-extern char *re_comp (const char *);
+EXTERN_C char *re_comp (const char *);
/* From symfile.c */
-extern void symbol_file_command (char *, int);
-
-/* * Remote targets may wish to use this as their load function. */
-extern void generic_load (const char *name, int from_tty);
-
-/* * Report on STREAM the performance of memory transfer operation,
- such as 'load'.
- @param DATA_COUNT is the number of bytes transferred.
- @param WRITE_COUNT is the number of separate write operations, or 0,
- if that information is not available.
- @param START_TIME is the time at which an operation was started.
- @param END_TIME is the time at which an operation ended. */
-struct timeval;
-extern void print_transfer_performance (struct ui_file *stream,
- unsigned long data_count,
- unsigned long write_count,
- const struct timeval *start_time,
- const struct timeval *end_time);
+extern void symbol_file_command (const char *, int);
/* From top.c */
typedef void initialize_file_ftype (void);
-extern char *gdb_readline (const char *);
-
extern char *gdb_readline_wrapper (const char *);
-extern char *command_line_input (const char *, int, char *);
+extern char *command_line_input (const char *, const char *);
extern void print_prompt (void);
-extern int input_from_terminal_p (void);
+struct ui;
-extern int info_verbose;
+extern int input_interactive_p (struct ui *);
+
+extern bool info_verbose;
/* From printcmd.c */
extern void set_next_address (struct gdbarch *, CORE_ADDR);
extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
- struct ui_file *, int, char *);
-
-extern int build_address_symbolic (struct gdbarch *,
- CORE_ADDR addr,
- int do_demangle,
- char **name,
- int *offset,
- char **filename,
- int *line,
- int *unmapped);
+ struct ui_file *, int,
+ const char *);
extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
extern const char *pc_prefix (CORE_ADDR);
-/* From source.c */
-
-/* See openp function definition for their description. */
-#define OPF_TRY_CWD_FIRST 0x01
-#define OPF_SEARCH_IN_PATH 0x02
-#define OPF_RETURN_REALPATH 0x04
-
-extern int openp (const char *, int, const char *, int, char **);
-
-extern int source_full_path_of (const char *, char **);
-
-extern void mod_path (char *, char **);
-
-extern void add_path (char *, char **, int);
-
-extern void directory_switch (char *, int);
-
-extern char *source_path;
-
-extern void init_source_path (void);
-
/* From exec.c */
/* * Process memory area starting at ADDR with length SIZE. Area is
lval_computed
};
-/* * Control types for commands. */
-
-enum misc_command_type
- {
- ok_command,
- end_command,
- else_command,
- nop_command
- };
-
-enum command_control_type
- {
- simple_control,
- break_control,
- continue_control,
- while_control,
- if_control,
- commands_control,
- python_control,
- compile_control,
- guile_control,
- while_stepping_control,
- invalid_control
- };
-
-/* * Structure for saved commands lines (for breakpoints, defined
- commands, etc). */
-
-struct command_line
- {
- struct command_line *next;
- char *line;
- enum command_control_type control_type;
- union
- {
- struct
- {
- enum compile_i_scope_types scope;
- }
- compile;
- }
- control_u;
- /* * The number of elements in body_list. */
- int body_count;
- /* * For composite commands, the nested lists of commands. For
- example, for "if" command this will contain the then branch and
- the else branch, if that is available. */
- struct command_line **body_list;
- };
-
-extern struct command_line *read_command_lines (char *, int, int,
- void (*)(char *, void *),
- void *);
-extern struct command_line *read_command_lines_1 (char * (*) (void), int,
- void (*)(char *, void *),
- void *);
-
-extern void free_command_lines (struct command_line **);
-
/* * Parameters of the "info proc" command. */
enum info_proc_what
/* * Display `info proc cwd'. */
IP_CWD,
+ /* * Display `info proc files'. */
+ IP_FILES,
+
/* * Display all of the above. */
IP_ALL
};
-/* * String containing the current directory (what getwd would return). */
-
-extern char *current_directory;
-
/* * Default radixes for input and output. Only some values supported. */
extern unsigned input_radix;
extern unsigned output_radix;
table in osabi.c. */
enum gdb_osabi
{
- GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */
-
GDB_OSABI_UNKNOWN = 0, /* keep this zero */
+ GDB_OSABI_NONE,
GDB_OSABI_SVR4,
GDB_OSABI_HURD,
GDB_OSABI_SOLARIS,
GDB_OSABI_LINUX,
- GDB_OSABI_FREEBSD_AOUT,
- GDB_OSABI_FREEBSD_ELF,
- GDB_OSABI_NETBSD_AOUT,
- GDB_OSABI_NETBSD_ELF,
- GDB_OSABI_OPENBSD_ELF,
+ GDB_OSABI_FREEBSD,
+ GDB_OSABI_NETBSD,
+ GDB_OSABI_OPENBSD,
GDB_OSABI_WINCE,
GDB_OSABI_GO32,
- GDB_OSABI_IRIX,
- GDB_OSABI_HPUX_ELF,
- GDB_OSABI_HPUX_SOM,
GDB_OSABI_QNXNTO,
GDB_OSABI_CYGWIN,
GDB_OSABI_AIX,
GDB_OSABI_LYNXOS178,
GDB_OSABI_NEWLIB,
GDB_OSABI_SDE,
+ GDB_OSABI_PIKEOS,
GDB_OSABI_INVALID /* keep this last */
};
-/* Global functions from other, non-gdb GNU thingies.
- Libiberty thingies are no longer declared here. We include libiberty.h
- above, instead. */
-
-/* From other system libraries */
+/* Enumerate the requirements a symbol has in order to be evaluated.
+ These are listed in order of "strength" -- a later entry subsumes
+ earlier ones. This fine-grained distinction is important because
+ it allows for the evaluation of a TLS symbol during unwinding --
+ when unwinding one has access to registers, but not the frame
+ itself, because that is being constructed. */
-#ifndef atof
-extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
-#endif
-
-/* Dynamic target-system-dependent parameters for GDB. */
-#include "gdbarch.h"
-
-/* * Maximum size of a register. Something small, but large enough for
- all known ISAs. If it turns out to be too small, make it bigger. */
-
-enum { MAX_REGISTER_SIZE = 64 };
-
-/* Static target-system-dependent parameters for GDB. */
-
-/* * Number of bits in a char or unsigned char for the target machine.
- Just like CHAR_BIT in <limits.h> but describes the target machine. */
-#if !defined (TARGET_CHAR_BIT)
-#define TARGET_CHAR_BIT 8
-#endif
+enum symbol_needs_kind
+{
+ /* No special requirements -- just memory. */
+ SYMBOL_NEEDS_NONE,
-/* * If we picked up a copy of CHAR_BIT from a configuration file
- (which may get it by including <limits.h>) then use it to set
- the number of bits in a host char. If not, use the same size
- as the target. */
+ /* The symbol needs registers. */
+ SYMBOL_NEEDS_REGISTERS,
-#if defined (CHAR_BIT)
-#define HOST_CHAR_BIT CHAR_BIT
-#else
-#define HOST_CHAR_BIT TARGET_CHAR_BIT
-#endif
+ /* The symbol needs a frame. */
+ SYMBOL_NEEDS_FRAME
+};
/* In findvar.c. */
-extern LONGEST extract_signed_integer (const gdb_byte *, int,
- enum bfd_endian);
+template<typename T, typename = RequireLongest<T>>
+T extract_integer (const gdb_byte *addr, int len, enum bfd_endian byte_order);
-extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
- enum bfd_endian);
+static inline LONGEST
+extract_signed_integer (const gdb_byte *addr, int len,
+ enum bfd_endian byte_order)
+{
+ return extract_integer<LONGEST> (addr, len, byte_order);
+}
+
+static inline ULONGEST
+extract_unsigned_integer (const gdb_byte *addr, int len,
+ enum bfd_endian byte_order)
+{
+ return extract_integer<ULONGEST> (addr, len, byte_order);
+}
extern int extract_long_unsigned_integer (const gdb_byte *, int,
enum bfd_endian, LONGEST *);
extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
struct type *type);
-extern void store_signed_integer (gdb_byte *, int,
- enum bfd_endian, LONGEST);
+/* All 'store' functions accept a host-format integer and store a
+ target-format integer at ADDR which is LEN bytes long. */
+
+template<typename T, typename = RequireLongest<T>>
+extern void store_integer (gdb_byte *addr, int len, enum bfd_endian byte_order,
+ T val);
-extern void store_unsigned_integer (gdb_byte *, int,
- enum bfd_endian, ULONGEST);
+static inline void
+store_signed_integer (gdb_byte *addr, int len,
+ enum bfd_endian byte_order, LONGEST val)
+{
+ return store_integer (addr, len, byte_order, val);
+}
+
+static inline void
+store_unsigned_integer (gdb_byte *addr, int len,
+ enum bfd_endian byte_order, ULONGEST val)
+{
+ return store_integer (addr, len, byte_order, val);
+}
extern void store_typed_address (gdb_byte *buf, struct type *type,
CORE_ADDR addr);
-\f
-/* From valops.c */
-
-extern int watchdog;
+extern void copy_integer_to_size (gdb_byte *dest, int dest_size,
+ const gdb_byte *source, int source_size,
+ bool is_signed, enum bfd_endian byte_order);
/* Hooks for alternate command interfaces. */
-/* * The name of the interpreter if specified on the command line. */
-extern char *interpreter_p;
-
-/* If a given interpreter matches INTERPRETER_P then it should update
- deprecated_init_ui_hook with the per-interpreter implementation. */
-/* FIXME: deprecated_init_ui_hook should be moved here. */
-
struct target_waitstatus;
struct cmd_list_element;
extern void (*deprecated_post_add_symbol_hook) (void);
extern void (*selected_frame_level_changed_hook) (int);
extern int (*deprecated_ui_loop_hook) (int signo);
-extern void (*deprecated_init_ui_hook) (char *argv0);
extern void (*deprecated_show_load_progress) (const char *section,
unsigned long section_sent,
unsigned long section_size,
ATTRIBUTE_FPTR_PRINTF(1,0);
extern void (*deprecated_warning_hook) (const char *, va_list)
ATTRIBUTE_FPTR_PRINTF(1,0);
-extern void (*deprecated_interactive_hook) (void);
-extern void (*deprecated_readline_begin_hook) (char *, ...)
+extern void (*deprecated_readline_begin_hook) (const char *, ...)
ATTRIBUTE_FPTR_PRINTF_1;
extern char *(*deprecated_readline_hook) (const char *);
extern void (*deprecated_readline_end_hook) (void);
-extern void (*deprecated_register_changed_hook) (int regno);
extern void (*deprecated_context_hook) (int);
extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
struct target_waitstatus *status,
extern void (*deprecated_attach_hook) (void);
extern void (*deprecated_detach_hook) (void);
extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
- char *cmd, int from_tty);
+ const char *cmd, int from_tty);
extern int (*deprecated_ui_load_progress_hook) (const char *section,
unsigned long num);
FIRST_LOCAL_BLOCK = 2
};
+/* User selection used in observable.h and multiple print functions. */
+
+enum user_selected_what_flag
+ {
+ /* Inferior selected. */
+ USER_SELECTED_INFERIOR = 1 << 1,
+
+ /* Thread selected. */
+ USER_SELECTED_THREAD = 1 << 2,
+
+ /* Frame selected. */
+ USER_SELECTED_FRAME = 1 << 3
+ };
+DEF_ENUM_FLAGS_TYPE (enum user_selected_what_flag, user_selected_what);
+
#include "utils.h"
#endif /* #ifndef DEFS_H */
projects / binutils.git / blobdiff