/* Core dump and executable file functions above target vector, for GDB.
- Copyright (C) 1986-2013 Free Software Foundation, Inc.
+ Copyright (C) 1986-2014 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "gdb_string.h"
-#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include "inferior.h"
#include "target.h"
#include "gdbcore.h"
#include "dis-asm.h"
-#include "gdb_stat.h"
+#include <sys/stat.h>
#include "completer.h"
#include "exceptions.h"
#include "observer.h"
/* Local function declarations. */
extern void _initialize_core (void);
-static void call_extra_exec_file_hooks (char *filename);
/* You can have any number of hooks for `exec_file_command' command to
call. If there's only one hook, it is set in exec_file_display
only one hook could be set, and which called
deprecated_exec_file_display_hook directly. */
-typedef void (*hook_type) (char *);
+typedef void (*hook_type) (const char *);
hook_type deprecated_exec_file_display_hook; /* The original hook. */
static hook_type *exec_file_extra_hooks; /* Array of additional
functions. */
static void
-call_extra_exec_file_hooks (char *filename)
+call_extra_exec_file_hooks (const char *filename)
{
int i;
This is called from the x-window display code. */
void
-specify_exec_file_hook (void (*hook) (char *))
+specify_exec_file_hook (void (*hook) (const char *))
{
hook_type *new_array;
}
\f
-/* Report a target xfer memory error by throwing a suitable
- exception. */
-
-static void
-target_xfer_memory_error (enum target_xfer_error err, CORE_ADDR memaddr)
+char *
+memory_error_message (enum target_xfer_status err,
+ struct gdbarch *gdbarch, CORE_ADDR memaddr)
{
switch (err)
{
case TARGET_XFER_E_IO:
/* Actually, address between memaddr and memaddr + len was out of
bounds. */
- throw_error (MEMORY_ERROR,
- _("Cannot access memory at address %s"),
- paddress (target_gdbarch (), memaddr));
- case TARGET_XFER_E_UNAVAILABLE:
- throw_error (NOT_AVAILABLE_ERROR,
- _("Memory at address %s unavailable."),
- paddress (target_gdbarch (), memaddr));
+ return xstrprintf (_("Cannot access memory at address %s"),
+ paddress (gdbarch, memaddr));
+ case TARGET_XFER_UNAVAILABLE:
+ return xstrprintf (_("Memory at address %s unavailable."),
+ paddress (gdbarch, memaddr));
default:
internal_error (__FILE__, __LINE__,
- "unhandled target_xfer_error: %s (%s)",
- target_xfer_error_to_string (err),
+ "unhandled target_xfer_status: %s (%s)",
+ target_xfer_status_to_string (err),
plongest (err));
}
}
-/* Report a memory error by throwing a MEMORY_ERROR error. */
+/* Report a memory error by throwing a suitable exception. */
void
-memory_error (int status, CORE_ADDR memaddr)
+memory_error (enum target_xfer_status err, CORE_ADDR memaddr)
{
- if (status == EIO)
- target_xfer_memory_error (TARGET_XFER_E_IO, memaddr);
- else
- throw_error (MEMORY_ERROR,
- _("Error accessing memory address %s: %s."),
- paddress (target_gdbarch (), memaddr),
- safe_strerror (status));
+ char *str;
+ enum errors exception = GDB_NO_ERROR;
+
+ /* Build error string. */
+ str = memory_error_message (err, target_gdbarch (), memaddr);
+ make_cleanup (xfree, str);
+
+ /* Choose the right error to throw. */
+ switch (err)
+ {
+ case TARGET_XFER_E_IO:
+ exception = MEMORY_ERROR;
+ break;
+ case TARGET_XFER_UNAVAILABLE:
+ exception = NOT_AVAILABLE_ERROR;
+ break;
+ }
+
+ /* Throw it. */
+ throw_error (exception, ("%s"), str);
}
/* Same as target_read_memory, but report an error if can't read. */
void
read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
{
- LONGEST xfered = 0;
+ ULONGEST xfered = 0;
while (xfered < len)
{
- LONGEST xfer = target_xfer_partial (current_target.beneath,
- TARGET_OBJECT_MEMORY, NULL,
- myaddr + xfered, NULL,
- memaddr + xfered, len - xfered);
-
- if (xfer == 0)
- target_xfer_memory_error (TARGET_XFER_E_IO, memaddr + xfered);
- if (xfer < 0)
- target_xfer_memory_error (xfer, memaddr + xfered);
- xfered += xfer;
+ enum target_xfer_status status;
+ ULONGEST xfered_len;
+
+ status = target_xfer_partial (current_target.beneath,
+ TARGET_OBJECT_MEMORY, NULL,
+ myaddr + xfered, NULL,
+ memaddr + xfered, len - xfered,
+ &xfered_len);
+
+ if (status != TARGET_XFER_OK)
+ memory_error (status == TARGET_XFER_EOF ? TARGET_XFER_E_IO : status,
+ memaddr + xfered);
+
+ xfered += xfered_len;
QUIT;
}
}
memory_error (status, memaddr);
}
+/* Same as target_read_code, but report an error if can't read. */
+
+void
+read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
+{
+ int status;
+
+ status = target_read_code (memaddr, myaddr, len);
+ if (status != 0)
+ memory_error (status, memaddr);
+}
+
/* Argument / return result struct for use with
do_captured_read_memory_integer(). MEMADDR and LEN are filled in
by gdb_read_memory_integer(). RESULT is the contents that were
return extract_unsigned_integer (buf, len, byte_order);
}
+LONGEST
+read_code_integer (CORE_ADDR memaddr, int len,
+ enum bfd_endian byte_order)
+{
+ gdb_byte buf[sizeof (LONGEST)];
+
+ read_code (memaddr, buf, len);
+ return extract_signed_integer (buf, len, byte_order);
+}
+
+ULONGEST
+read_code_unsigned_integer (CORE_ADDR memaddr, int len,
+ enum bfd_endian byte_order)
+{
+ gdb_byte buf[sizeof (ULONGEST)];
+
+ read_code (memaddr, buf, len);
+ return extract_unsigned_integer (buf, len, byte_order);
+}
+
void
read_memory_string (CORE_ADDR memaddr, char *buffer, int max_len)
{
projects / deliverable / binutils-gdb.git / blobdiff