/* Machine independent variables that describe the core file under GDB.
- Copyright 1986, 1987, 1989, 1990, 1992, 1995 Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright (C) 1986-2019 Free Software Foundation, Inc.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This file is part of GDB.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Interface routines for core, executable, etc. */
#if !defined (GDBCORE_H)
#define GDBCORE_H 1
-#include "bfd.h"
-
-/* Return the name of the executable file as a string.
- ERR nonzero means get error if there is none specified;
- otherwise return 0 in that case. */
+struct type;
+struct regcache;
-extern char *get_exec_file PARAMS ((int err));
+#include "bfd.h"
+#include "exec.h"
+#include "target.h"
/* Nonzero if there is a core file. */
-extern int have_core_file_p PARAMS ((void));
+extern int have_core_file_p (void);
-/* Read "memory data" from whatever target or inferior we have.
- Returns zero if successful, errno value if not. EIO is used for
- address out of bounds. If breakpoints are inserted, returns shadow
- contents, not the breakpoints themselves. From breakpoint.c. */
+/* Report a memory error with error(). */
-extern int read_memory_nobpt PARAMS ((CORE_ADDR memaddr, char *myaddr,
- unsigned len));
+extern void memory_error (enum target_xfer_status status, CORE_ADDR memaddr);
-/* Report a memory error with error(). */
+/* The string 'memory_error' would use as exception message. */
-extern void memory_error PARAMS ((int status, CORE_ADDR memaddr));
+extern std::string memory_error_message (enum target_xfer_status err,
+ struct gdbarch *gdbarch,
+ CORE_ADDR memaddr);
/* Like target_read_memory, but report an error if can't read. */
-extern void read_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
+extern void read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
+
+/* Like target_read_stack, but report an error if can't read. */
-extern void read_memory_section PARAMS ((CORE_ADDR memaddr, char *myaddr,
- int len, asection *bfd_section));
+extern void read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
+
+/* Like target_read_code, but report an error if can't read. */
+
+extern void read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len);
/* Read an integer from debugged memory, given address and number of
bytes. */
-extern LONGEST read_memory_integer PARAMS ((CORE_ADDR memaddr, int len));
+extern LONGEST read_memory_integer (CORE_ADDR memaddr,
+ int len, enum bfd_endian byte_order);
+extern int safe_read_memory_integer (CORE_ADDR memaddr, int len,
+ enum bfd_endian byte_order,
+ LONGEST *return_value);
/* Read an unsigned integer from debugged memory, given address and
number of bytes. */
-extern ULONGEST read_memory_unsigned_integer PARAMS ((CORE_ADDR memaddr, int len));
-
-/* Read a null-terminated string from the debuggee's memory, given address,
- * a buffer into which to place the string, and the maximum available space */
-extern void read_memory_string PARAMS ((CORE_ADDR, char *, int));
-
-/* This takes a char *, not void *. This is probably right, because
- passing in an int * or whatever is wrong with respect to
- byteswapping, alignment, different sizes for host vs. target types,
- etc. */
+extern ULONGEST read_memory_unsigned_integer (CORE_ADDR memaddr,
+ int len,
+ enum bfd_endian byte_order);
+extern int safe_read_memory_unsigned_integer (CORE_ADDR memaddr, int len,
+ enum bfd_endian byte_order,
+ ULONGEST *return_value);
-extern void write_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
-
-extern void generic_search PARAMS ((int len, char *data, char *mask,
- CORE_ADDR startaddr, int increment,
- CORE_ADDR lorange, CORE_ADDR hirange,
- CORE_ADDR *addr_found, char *data_found));
-\f
-/* Hook for `exec_file_command' command to call. */
+/* Read an integer from debugged code memory, given address,
+ number of bytes, and byte order for code. */
-extern void (*exec_file_display_hook) PARAMS ((char *filename));
+extern LONGEST read_code_integer (CORE_ADDR memaddr, int len,
+ enum bfd_endian byte_order);
-/* Hook for "file_command", which is more useful than above
- (because it is invoked AFTER symbols are read, not before) */
+/* Read an unsigned integer from debugged code memory, given address,
+ number of bytes, and byte order for code. */
-extern void (*file_changed_hook) PARAMS ((char *filename));
+extern ULONGEST read_code_unsigned_integer (CORE_ADDR memaddr,
+ int len,
+ enum bfd_endian byte_order);
-extern void specify_exec_file_hook PARAMS ((void (*hook) (char *filename)));
+/* Read a null-terminated string from the debuggee's memory, given
+ address, a buffer into which to place the string, and the maximum
+ available space. */
-/* Binary File Diddlers for the exec and core files */
+extern void read_memory_string (CORE_ADDR, char *, int);
-extern bfd *core_bfd;
-extern bfd *exec_bfd;
+/* Read the pointer of type TYPE at ADDR, and return the address it
+ represents. */
-/* Whether to open exec and core files read-only or read-write. */
+CORE_ADDR read_memory_typed_address (CORE_ADDR addr, struct type *type);
-extern int write_files;
+/* Same as target_write_memory, but report an error if can't
+ write. */
-extern void core_file_command PARAMS ((char *filename, int from_tty));
+extern void write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr,
+ ssize_t len);
-extern void exec_file_attach PARAMS ((char *filename, int from_tty));
+/* Same as write_memory, but notify 'memory_changed' observers. */
-extern void exec_file_command PARAMS ((char *filename, int from_tty));
+extern void write_memory_with_notification (CORE_ADDR memaddr,
+ const bfd_byte *myaddr,
+ ssize_t len);
-extern void validate_files PARAMS ((void));
+/* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
+extern void write_memory_unsigned_integer (CORE_ADDR addr, int len,
+ enum bfd_endian byte_order,
+ ULONGEST value);
-extern CORE_ADDR register_addr PARAMS ((int regno, CORE_ADDR blockend));
+/* Store VALUE at ADDR in the inferior as a LEN-byte unsigned integer. */
+extern void write_memory_signed_integer (CORE_ADDR addr, int len,
+ enum bfd_endian byte_order,
+ LONGEST value);
+\f
+/* Hook for `exec_file_command' command to call. */
-extern void registers_fetched PARAMS ((void));
+extern void (*deprecated_exec_file_display_hook) (const char *filename);
-#if !defined (KERNEL_U_ADDR)
-extern CORE_ADDR kernel_u_addr;
-#define KERNEL_U_ADDR kernel_u_addr
-#endif
+/* Hook for "file_command", which is more useful than above
+ (because it is invoked AFTER symbols are read, not before). */
-/* The target vector for core files. */
+extern void (*deprecated_file_changed_hook) (const char *filename);
-extern struct target_ops core_ops;
+extern void specify_exec_file_hook (void (*hook) (const char *filename));
-/* The current default bfd target. */
+/* Binary File Diddler for the core file. */
-extern char *gnutarget;
+#define core_bfd (current_program_space->cbfd.get ())
-extern void set_gnutarget PARAMS ((char *));
+/* Whether to open exec and core files read-only or read-write. */
-/* Structure to keep track of core register reading functions for
- various core file types. */
+extern bool write_files;
-struct core_fns {
+/* Open and set up the core file bfd. */
- /* BFD flavour that we handle. Note that bfd_target_unknown_flavour matches
- anything, and if there is no better match, this function will be called
- as the default. */
+extern void core_target_open (const char *arg, int from_tty);
- enum bfd_flavour core_flavour;
+extern void core_file_command (const char *filename, int from_tty);
- /* Extract the register values out of the core file and store them where
- `read_register' will find them.
+extern void exec_file_attach (const char *filename, int from_tty);
- CORE_REG_SECT points to the register values themselves, read into
- memory.
+/* If the filename of the main executable is unknown, attempt to
+ determine it. If a filename is determined, proceed as though
+ it was just specified with the "file" command. Do nothing if
+ the filename of the main executable is already known.
+ DEFER_BP_RESET uses SYMFILE_DEFER_BP_RESET for the main symbol file. */
- CORE_REG_SIZE is the size of that area.
+extern void exec_file_locate_attach (int pid, int defer_bp_reset, int from_tty);
- WHICH says which set of registers we are handling (0 = int, 2 = float on
- machines where they are discontiguous).
+extern void validate_files (void);
- REG_ADDR is the offset from u.u_ar0 to the register values relative to
- core_reg_sect. This is used with old-fashioned core files to locate the
- registers in a large upage-plus-stack ".reg" section. Original upage
- address X is at location core_reg_sect+x+reg_addr. */
+/* The current default bfd target. */
- void (*core_read_registers) PARAMS ((char *core_reg_sect, unsigned core_reg_size,
- int which, CORE_ADDR reg_addr));
+extern char *gnutarget;
- /* Finds the next struct core_fns. They are allocated and initialized
- in whatever module implements the functions pointed to; an
- initializer calls add_core_fns to add them to the global chain. */
+extern void set_gnutarget (const char *);
- struct core_fns *next;
+/* Structure to keep track of core register reading functions for
+ various core file types. */
+struct core_fns
+ {
+
+ /* BFD flavour that a core file handler is prepared to read. This
+ can be used by the handler's core tasting function as a first
+ level filter to reject BFD's that don't have the right
+ flavour. */
+
+ enum bfd_flavour core_flavour;
+
+ /* Core file handler function to call to recognize corefile
+ formats that BFD rejects. Some core file format just don't fit
+ into the BFD model, or may require other resources to identify
+ them, that simply aren't available to BFD (such as symbols from
+ another file). Returns nonzero if the handler recognizes the
+ format, zero otherwise. */
+
+ int (*check_format) (bfd *);
+
+ /* Core file handler function to call to ask if it can handle a
+ given core file format or not. Returns zero if it can't,
+ nonzero otherwise. */
+
+ int (*core_sniffer) (struct core_fns *, bfd *);
+
+ /* Extract the register values out of the core file and supply them
+ into REGCACHE.
+
+ CORE_REG_SECT points to the register values themselves, read into
+ memory.
+
+ CORE_REG_SIZE is the size of that area.
+
+ WHICH says which set of registers we are handling:
+ 0 --- integer registers
+ 2 --- floating-point registers, on machines where they are
+ discontiguous
+ 3 --- extended floating-point registers, on machines where
+ these are present in yet a third area. (GNU/Linux uses
+ this to get at the SSE registers.)
+
+ REG_ADDR is the offset from u.u_ar0 to the register values relative to
+ core_reg_sect. This is used with old-fashioned core files to locate the
+ registers in a large upage-plus-stack ".reg" section. Original upage
+ address X is at location core_reg_sect+x+reg_addr. */
+
+ void (*core_read_registers) (struct regcache *regcache,
+ char *core_reg_sect,
+ unsigned core_reg_size,
+ int which, CORE_ADDR reg_addr);
+
+ /* Finds the next struct core_fns. They are allocated and
+ initialized in whatever module implements the functions pointed
+ to; an initializer calls deprecated_add_core_fns to add them to
+ the global chain. */
+
+ struct core_fns *next;
+
+ };
+
+/* Build either a single-thread or multi-threaded section name for
+ PTID.
+
+ If ptid's lwp member is zero, we want to do the single-threaded
+ thing: look for a section named NAME (as passed to the
+ constructor). If ptid's lwp member is non-zero, we'll want do the
+ multi-threaded thing: look for a section named "NAME/LWP", where
+ LWP is the shortest ASCII decimal representation of ptid's lwp
+ member. */
+
+class thread_section_name
+{
+public:
+ /* NAME is the single-threaded section name. If PTID represents an
+ LWP, then the build section name is "NAME/LWP", otherwise it's
+ just "NAME" unmodified. */
+ thread_section_name (const char *name, ptid_t ptid)
+ {
+ if (ptid.lwp_p ())
+ {
+ m_storage = string_printf ("%s/%ld", name, ptid.lwp ());
+ m_section_name = m_storage.c_str ();
+ }
+ else
+ m_section_name = name;
+ }
+
+ /* Return the computed section name. The result is valid as long as
+ this thread_section_name object is live. */
+ const char *c_str () const
+ { return m_section_name; }
+
+ DISABLE_COPY_AND_ASSIGN (thread_section_name);
+
+private:
+ /* Either a pointer into M_STORAGE, or a pointer to the name passed
+ as parameter to the constructor. */
+ const char *m_section_name;
+ /* If we need to build a new section name, this is where we store
+ it. */
+ std::string m_storage;
};
-extern void add_core_fns PARAMS ((struct core_fns *cf));
+/* NOTE: cagney/2004-04-05: Replaced by "regset.h" and
+ regset_from_core_section(). */
+extern void deprecated_add_core_fns (struct core_fns *cf);
+extern int default_core_sniffer (struct core_fns *cf, bfd * abfd);
+extern int default_check_format (bfd * abfd);
-#endif /* !defined (GDBCORE_H) */
+#endif /* !defined (GDBCORE_H) */
projects / deliverable / binutils-gdb.git / blobdiff