X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fdefs.h;h=3d21f62f52cc3a59d5effb62dcb78014acdfc092;hb=77a179e77b38161e461f5e37512f0b3fc3582181;hp=7b5bc0628a359f022f275a1d7b50946017761606;hpb=38bcc89d48a20af944fe0d51eff3980f7dc8a88e;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/defs.h b/gdb/defs.h index 7b5bc0628a..3d21f62f52 100644 --- a/gdb/defs.h +++ b/gdb/defs.h @@ -1,7 +1,7 @@ /* *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) 1986-2016 Free Software Foundation, Inc. This file is part of GDB. @@ -29,7 +29,6 @@ #include #include -#include /* The libdecnumber library, on which GDB depends, includes a header file called gstdint.h instead of relying directly on stdint.h. GDB, on the @@ -54,6 +53,7 @@ #include "ui-file.h" #include "host-defs.h" +#include "common/enum-flags.h" /* Scope types enumerator. List the types of scopes the compiler will accept. */ @@ -71,6 +71,15 @@ enum compile_i_scope_types /* 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, }; /* Just in case they're not defined in stdio.h. */ @@ -94,16 +103,6 @@ enum compile_i_scope_types #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; @@ -120,67 +119,112 @@ extern char *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; + +/* Override the current quit handler. Sets NEW_QUIT_HANDLER as + current quit handler, and installs a cleanup that when run restores + the previous quit handler. */ +struct cleanup * + make_cleanup_override_quit_handler (quit_handler_ftype *new_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. */ + +extern void maybe_quit (void); + +/* Check whether a Ctrl-C was typed, and if so, call the current quit + handler. */ +#define QUIT maybe_quit () -#define QUIT { \ - if (check_quit_flag () || sync_quit_force_run) quit (); \ - if (deprecated_interactive_hook) deprecated_interactive_hook (); \ -} +/* 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). */ 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, @@ -250,7 +294,7 @@ extern int annotation_level; /* in stack.c */ "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 */ @@ -259,33 +303,19 @@ 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); - /* 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 void print_prompt (void); -extern int input_from_terminal_p (void); +struct ui; + +extern int input_interactive_p (struct ui *); extern int info_verbose; @@ -401,6 +431,7 @@ struct command_line struct { enum compile_i_scope_types scope; + void *scope_data; } compile; } @@ -550,7 +581,6 @@ enum gdb_osabi GDB_OSABI_OPENBSD_ELF, GDB_OSABI_WINCE, GDB_OSABI_GO32, - GDB_OSABI_IRIX, GDB_OSABI_HPUX_ELF, GDB_OSABI_HPUX_SOM, GDB_OSABI_QNXNTO, @@ -562,19 +592,29 @@ enum gdb_osabi GDB_OSABI_OPENVMS, GDB_OSABI_LYNXOS178, GDB_OSABI_NEWLIB, + GDB_OSABI_SDE, 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. */ +/* 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. */ -/* From other system libraries */ +enum symbol_needs_kind +{ + /* No special requirements -- just memory. */ + SYMBOL_NEEDS_NONE, -#ifndef atof -extern double atof (const char *); /* X3.159-1989 4.10.1.1 */ -#endif + /* The symbol needs registers. */ + SYMBOL_NEEDS_REGISTERS, + + /* The symbol needs a frame. */ + SYMBOL_NEEDS_FRAME +}; /* Dynamic target-system-dependent parameters for GDB. */ #include "gdbarch.h" @@ -584,25 +624,6 @@ extern double atof (const char *); /* X3.159-1989 4.10.1.1 */ 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 but describes the target machine. */ -#if !defined (TARGET_CHAR_BIT) -#define TARGET_CHAR_BIT 8 -#endif - -/* * If we picked up a copy of CHAR_BIT from a configuration file - (which may get it by including ) then use it to set - the number of bits in a host char. If not, use the same size - as the target. */ - -#if defined (CHAR_BIT) -#define HOST_CHAR_BIT CHAR_BIT -#else -#define HOST_CHAR_BIT TARGET_CHAR_BIT -#endif - /* In findvar.c. */ extern LONGEST extract_signed_integer (const gdb_byte *, int, @@ -636,10 +657,6 @@ extern int watchdog; /* * 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; @@ -647,7 +664,6 @@ extern void (*deprecated_pre_add_symbol_hook) (const char *); 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, @@ -666,7 +682,6 @@ extern void (*deprecated_readline_begin_hook) (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, @@ -703,6 +718,21 @@ enum block_enum FIRST_LOCAL_BLOCK = 2 }; +/* User selection used in observer.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 */