/tmp/gdb-8.1/gdb/exec.c File Reference

#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "target.h"
#include "gdbcmd.h"
#include "language.h"
#include "filenames.h"
#include "symfile.h"
#include "objfiles.h"
#include "completer.h"
#include "value.h"
#include "exec.h"
#include "observer.h"
#include "arch-utils.h"
#include "gdbthread.h"
#include "progspace.h"
#include "gdb_bfd.h"
#include "gcore.h"
#include <fcntl.h>
#include "readline/readline.h"
#include "gdbcore.h"
#include <ctype.h>
#include <sys/stat.h>
#include "solist.h"
#include <algorithm>

Go to the source code of this file.

Functions
static void	exec_files_info (struct target_ops *)
static void	init_exec_ops (void)
static void	show_write_files (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value)
static void	exec_open (const char *args, int from_tty)
void	exec_close (void)
static void	exec_close_1 (struct target_ops *self)
void	exec_file_clear (int from_tty)
void	try_open_exec_file (const char *exec_file_host, struct inferior *inf, symfile_add_flags add_flags)
void	exec_file_locate_attach (int pid, int defer_bp_reset, int from_tty)
void	exec_file_attach (const char *filename, int from_tty)
static void	exec_file_command (const char *args, int from_tty)
static void	file_command (const char *arg, int from_tty)
static void	add_to_section_table (bfd *abfd, struct bfd_section *asect, void *table_pp_char)
void	clear_section_table (struct target_section_table *table)
static int	resize_section_table (struct target_section_table *table, int adjustment)
int	build_section_table (struct bfd *some_bfd, struct target_section **start, struct target_section **end)
void	add_target_sections (void *owner, struct target_section *sections, struct target_section *sections_end)
void	add_target_sections_of_objfile (struct objfile *objfile)
void	remove_target_sections (void *owner)
enum target_xfer_status	exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
static std::vector< mem_range >	section_table_available_memory (CORE_ADDR memaddr, ULONGEST len, struct target_section *sections, struct target_section *sections_end)
enum target_xfer_status	section_table_read_available_memory (gdb_byte *readbuf, ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
enum target_xfer_status	section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, ULONGEST *xfered_len, struct target_section *sections, struct target_section *sections_end, const char *section_name)
static struct target_section_table *	exec_get_section_table (struct target_ops *ops)
static enum target_xfer_status	exec_xfer_partial (struct target_ops *ops, enum target_object object, const char *annex, gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
void	print_section_info (struct target_section_table *t, bfd *abfd)
static void	set_section_command (const char *args, int from_tty)
void	exec_set_section_address (const char *filename, int index, CORE_ADDR address)
static int	ignore (struct target_ops *ops, struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
static int	exec_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, struct bp_target_info *bp_tgt, enum remove_bp_reason reason)
static int	exec_has_memory (struct target_ops *ops)
static char *	exec_make_note_section (struct target_ops *self, bfd *obfd, int *note_size)
void	_initialize_exec (void)

Variables
void(*	deprecated_file_changed_hook )(const char *)
static struct target_ops	exec_ops
int	write_files = 0

Function Documentation

_initialize_exec()

void _initialize_exec

(

void

)

Definition at line 1080 of file exec.c.

References _, add_cmd(), add_com(), add_setshow_boolean_cmd(), add_target_with_completer(), class_files, class_support, cmdlist, dbx_commands, exec_file_command(), exec_ops, file_command(), filename_completer(), init_exec_ops(), set_cmd_completer(), set_section_command(), setlist, show_write_files(), showlist, and write_files.

add_target_sections()

void add_target_sections	(	void *	owner,
		struct target_section *	sections,
		struct target_section *	sections_end
	)

Definition at line 531 of file exec.c.

References current_target_sections, exec_ops, target_section::owner, push_target(), resize_section_table(), target_section_table::sections, target_section_table::sections_end, and target_is_pushed().

Referenced by exec_file_attach(), and solib_map_sections().

add_target_sections_of_objfile()

void add_target_sections_of_objfile

(

struct objfile *

objfile

)

Definition at line 561 of file exec.c.

References target_section::addr, ALL_OBJFILE_OSECTIONS, current_target_sections, target_section::endaddr, gdb_assert, obj_section_addr, obj_section_endaddr, target_section::owner, resize_section_table(), target_section_table::sections, obj_section::the_bfd_section, and target_section::the_bfd_section.

Referenced by add_symbol_file_command(), and symbol_file_add_from_memory().

add_to_section_table()

static void add_to_section_table ( bfd *  abfd, struct bfd_section *  asect, void *  table_pp_char  )

static

Definition at line 445 of file exec.c.

References gdb_assert.

Referenced by build_section_table().

build_section_table()

int build_section_table	(	struct bfd *	some_bfd,
		struct target_section **	start,
		struct target_section **	end
	)

Definition at line 509 of file exec.c.

References _, add_to_section_table(), internal_error(), xfree(), and XNEWVEC.

Referenced by core_open(), exec_file_attach(), record_full_core_open_1(), solib_map_sections(), and target_bfd_reopen().

clear_section_table()

void clear_section_table

(

struct target_section_table *

table

)

Definition at line 472 of file exec.c.

References target_section_table::sections, target_section_table::sections_end, and xfree().

Referenced by exec_close_1(), release_program_space(), and resize_section_table().

exec_close()

void exec_close

(

void

)

Definition at line 83 of file exec.c.

References exec_bfd, exec_bfd_mtime, exec_filename, gdb_bfd_unref(), remove_target_sections(), and xfree().

Referenced by exec_close_1(), exec_file_attach(), exec_file_clear(), and release_program_space().

exec_close_1()

static void exec_close_1 ( struct target_ops *  self )

static

Definition at line 107 of file exec.c.

References ALL_PSPACES, clear_section_table(), current_target_sections, exec_close(), and set_current_program_space().

Referenced by init_exec_ops().

exec_file_attach()

void exec_file_attach	(	const char *	filename,
		int	from_tty
	)

Definition at line 244 of file exec.c.

References _, add_target_sections(), build_section_table(), deprecated_exec_file_display_hook, error(), exec_bfd, exec_bfd_mtime, exec_close(), exec_filename, gdb_assert, gdb_bfd_errmsg(), gdb_bfd_fopen(), gdb_bfd_open(), gdb_realpath(), gdb_realpath_keepfile(), gnutarget, is_target_filename(), new_bfd_ref(), O_BINARY, observer_notify_executable_changed(), openp(), OPF_TRY_CWD_FIRST, perror_with_name(), printf_unfiltered(), gdb::ref_ptr< T, Policy >::release(), set_gdbarch_from_file(), target_filesystem_is_local, TARGET_SYSROOT_PREFIX, validate_files(), warning(), write_files, and xfree().

Referenced by add_inferior_command(), captured_main_1(), clone_program_space(), exec_file_command(), exec_open(), reopen_exec_file(), reread_symbols(), and try_open_exec_file().

exec_file_clear()

void exec_file_clear

(

int

from_tty

)

Definition at line 121 of file exec.c.

References _, exec_close(), and printf_unfiltered().

exec_file_command()

static void exec_file_command ( const char *  args, int  from_tty  )

static

Definition at line 396 of file exec.c.

References _, gdb::argv, error(), exec_file_attach(), gdb_argv::get(), query(), and target_has_execution.

Referenced by _initialize_exec(), and file_command().

exec_file_locate_attach()

void exec_file_locate_attach	(	int	pid,
		int	defer_bp_reset,
		int	from_tty
	)

Definition at line 191 of file exec.c.

References _, current_inferior(), do_cleanups(), exec_file_find(), get_exec_file(), make_cleanup(), pid, SYMFILE_DEFER_BP_RESET, SYMFILE_VERBOSE, target_pid_to_exec_file, try_open_exec_file(), warning(), and xfree().

Referenced by remote_add_inferior(), and setup_inferior().

exec_files_info()

static void exec_files_info ( struct target_ops *  t )

static

Definition at line 947 of file exec.c.

References _, current_target_sections, exec_bfd, print_section_info(), and puts_filtered().

Referenced by init_exec_ops(), and set_section_command().

exec_get_section_table()

static struct target_section_table* exec_get_section_table ( struct target_ops *  ops )

static

Definition at line 853 of file exec.c.

References current_target_sections.

Referenced by init_exec_ops().

exec_has_memory()

static int exec_has_memory ( struct target_ops *  ops )

static

Definition at line 1041 of file exec.c.

References current_target_sections.

Referenced by init_exec_ops().

exec_make_note_section()

static char* exec_make_note_section ( struct target_ops *  self, bfd *  obfd, int *  note_size  )

static

Definition at line 1050 of file exec.c.

References _, and error().

Referenced by init_exec_ops().

exec_open()

static void exec_open ( const char *  args, int  from_tty  )

static

Definition at line 73 of file exec.c.

References exec_file_attach(), and target_preopen().

Referenced by init_exec_ops().

exec_read_partial_read_only()

enum target_xfer_status exec_read_partial_read_only	(	gdb_byte *	readbuf,
		ULONGEST	offset,
		ULONGEST	len,
		ULONGEST *	xfered_len
	)

Definition at line 650 of file exec.c.

References exec_bfd, offset, size, TARGET_XFER_E_IO, TARGET_XFER_EOF, and TARGET_XFER_OK.

Referenced by section_table_read_available_memory(), and tfile_xfer_partial().

exec_remove_breakpoint()

static int exec_remove_breakpoint ( struct target_ops *  ops, struct gdbarch *  gdbarch, struct bp_target_info *  bp_tgt, enum remove_bp_reason  reason  )

static

Definition at line 1033 of file exec.c.

Referenced by init_exec_ops().

exec_set_section_address()

void exec_set_section_address	(	const char *	filename,
		int	index,
		CORE_ADDR	address
	)

Definition at line 1002 of file exec.c.

References target_section::addr, current_target_sections, target_section::endaddr, target_section_table::sections, target_section_table::sections_end, and target_section::the_bfd_section.

Referenced by default_symfile_offsets(), objfile_relocate1(), and svr4_relocate_main_executable().

exec_xfer_partial()

static enum target_xfer_status exec_xfer_partial ( struct target_ops *  ops, enum target_object  object, const char *  annex, gdb_byte *  readbuf, const gdb_byte *  writebuf, ULONGEST  offset, ULONGEST  len, ULONGEST *  xfered_len  )

static

Definition at line 859 of file exec.c.

References offset, section_table_xfer_memory_partial(), target_section_table::sections, target_section_table::sections_end, target_get_section_table(), TARGET_OBJECT_MEMORY, and TARGET_XFER_E_IO.

Referenced by init_exec_ops().

file_command()

static void file_command ( const char *  arg, int  from_tty  )

static

Definition at line 429 of file exec.c.

References deprecated_file_changed_hook, exec_file_command(), and symbol_file_command().

Referenced by _initialize_exec().

ignore()

static int ignore ( struct target_ops *  ops, struct gdbarch *  gdbarch, struct bp_target_info *  bp_tgt  )

static

Definition at line 1024 of file exec.c.

Referenced by init_exec_ops().

init_exec_ops()

static void init_exec_ops ( void  )

static

Definition at line 1059 of file exec.c.

References exec_close_1(), exec_files_info(), exec_get_section_table(), exec_has_memory(), exec_make_note_section(), exec_open(), exec_ops, exec_remove_breakpoint(), exec_xfer_partial(), file_stratum, ignore(), objfile_find_memory_regions(), OPS_MAGIC, target_ops::to_close, target_ops::to_doc, target_ops::to_files_info, target_ops::to_find_memory_regions, target_ops::to_get_section_table, target_ops::to_has_memory, target_ops::to_insert_breakpoint, target_ops::to_longname, target_ops::to_magic, target_ops::to_make_corefile_notes, target_ops::to_open, target_ops::to_remove_breakpoint, target_ops::to_shortname, target_ops::to_stratum, and target_ops::to_xfer_partial.

Referenced by _initialize_exec().

print_section_info()

void print_section_info	(	struct target_section_table *	t,
		bfd *	abfd
	)

Definition at line 878 of file exec.c.

References _, target_section::addr, target_section::endaddr, exec_bfd, gdbarch_addr_bit(), gdbarch_addr_bits_remove(), gdbarch_from_bfd(), hex_string_custom(), info_verbose, paddress(), printf_filtered(), target_section_table::sections, target_section_table::sections_end, target_section::the_bfd_section, warning(), and wrap_here().

Referenced by core_files_info(), and exec_files_info().

remove_target_sections()

void remove_target_sections

(

void *

owner

)

Definition at line 607 of file exec.c.

References ALL_PSPACES, current_target_sections, exec_ops, gdb_assert, target_section::owner, resize_section_table(), target_section_table::sections, target_section_table::sections_end, program_space::target_sections, and unpush_target().

Referenced by clear_solib(), exec_close(), reload_shared_libraries_1(), symfile_free_objfile(), and update_solib_list().

resize_section_table()

static int resize_section_table ( struct target_section_table *  table, int  adjustment  )

static

Definition at line 484 of file exec.c.

References clear_section_table(), target_section_table::sections, target_section_table::sections_end, and XRESIZEVEC.

Referenced by add_target_sections(), add_target_sections_of_objfile(), and remove_target_sections().

section_table_available_memory()

static std::vector<mem_range> section_table_available_memory ( CORE_ADDR  memaddr, ULONGEST  len, struct target_section *  sections, struct target_section *  sections_end  )

static

Definition at line 701 of file exec.c.

References mem_ranges_overlap().

Referenced by section_table_read_available_memory().

section_table_read_available_memory()

enum target_xfer_status section_table_read_available_memory	(	gdb_byte *	readbuf,
		ULONGEST	offset,
		ULONGEST	len,
		ULONGEST *	xfered_len
	)

Definition at line 736 of file exec.c.

References exec_ops, exec_read_partial_read_only(), gdb_assert, mem_ranges_overlap(), normalize_mem_ranges(), offset, section_table_available_memory(), target_section_table::sections, target_section_table::sections_end, status, target_get_section_table(), and TARGET_XFER_UNAVAILABLE.

Referenced by tfile_xfer_partial().

section_table_xfer_memory_partial()

enum target_xfer_status section_table_xfer_memory_partial	(	gdb_byte *	readbuf,
		const gdb_byte *	writebuf,
		ULONGEST	offset,
		ULONGEST	len,
		ULONGEST *	xfered_len,
		struct target_section *	sections,
		struct target_section *	sections_end,
		const char *	section_name
	)

Definition at line 776 of file exec.c.

References _, target_section::addr, target_section::endaddr, internal_error(), offset, TARGET_XFER_EOF, TARGET_XFER_OK, and target_section::the_bfd_section.

Referenced by core_xfer_partial(), exec_xfer_partial(), memory_xfer_partial_1(), and target_bfd_xfer_partial().

set_section_command()

static void set_section_command ( const char *  args, int  from_tty  )

static

Definition at line 956 of file exec.c.

References _, target_section::addr, current_target_sections, target_section::endaddr, error(), exec_files_info(), exec_ops, offset, parse_and_eval_address(), target_section_table::sections, target_section_table::sections_end, and target_section::the_bfd_section.

Referenced by _initialize_exec().

show_write_files()

static void show_write_files ( struct ui_file *  file, int  from_tty, struct cmd_list_element *  c, const char *  value  )

static

Definition at line 64 of file exec.c.

References _, and fprintf_filtered().

Referenced by _initialize_exec().

try_open_exec_file()

void try_open_exec_file	(	const char *	exec_file_host,
		struct inferior *	inf,
		symfile_add_flags	add_flags
	)

Definition at line 133 of file exec.c.

References CATCH, do_cleanups(), END_CATCH, err, exception_none, exception_print_same(), exec_file_attach(), free_current_contents(), make_cleanup(), gdb_exception::message, RETURN_MASK_ERROR, symbol_file_add_main(), SYMFILE_VERBOSE, TRY, and warning().

Referenced by exec_file_locate_attach(), and follow_exec().

Variable Documentation

deprecated_file_changed_hook

void(* deprecated_file_changed_hook) (const char *)

Definition at line 48 of file exec.c.

Referenced by file_command().

exec_ops

struct target_ops exec_ops

static

Definition at line 58 of file exec.c.

Referenced by _initialize_exec(), add_target_sections(), init_exec_ops(), remove_target_sections(), section_table_read_available_memory(), and set_section_command().

write_files

int write_files = 0

Definition at line 62 of file exec.c.

Referenced by _initialize_exec(), bsd_kvm_open(), captured_main_1(), core_open(), and exec_file_attach().