/* Core dump and executable file functions above target vector, for GDB.
- Copyright (C) 1986-2015 Free Software Foundation, Inc.
+ Copyright (C) 1986-2017 Free Software Foundation, Inc.
This file is part of GDB.
cleanups = make_cleanup (xfree, filename);
res = stat (filename, &st);
- if (exec_bfd_mtime && exec_bfd_mtime != st.st_mtime)
+ if (res == 0 && exec_bfd_mtime && exec_bfd_mtime != st.st_mtime)
exec_file_attach (filename, 0);
else
/* If we accessed the file since last opening it, close it now;
throw_error (exception, ("%s"), str);
}
-/* Same as target_read_memory, but report an error if can't read. */
+/* Helper function. */
-void
-read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
+static void
+read_memory_object (enum target_object object, CORE_ADDR memaddr,
+ gdb_byte *myaddr, ssize_t len)
{
ULONGEST xfered = 0;
ULONGEST xfered_len;
status = target_xfer_partial (current_target.beneath,
- TARGET_OBJECT_MEMORY, NULL,
+ object, NULL,
myaddr + xfered, NULL,
memaddr + xfered, len - xfered,
&xfered_len);
}
}
+/* 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)
+{
+ read_memory_object (TARGET_OBJECT_MEMORY, memaddr, myaddr, len);
+}
+
/* Same as target_read_stack, but report an error if can't read. */
void
read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
{
- int status;
-
- status = target_read_stack (memaddr, myaddr, len);
- if (status != 0)
- memory_error (status, memaddr);
+ read_memory_object (TARGET_OBJECT_STACK_MEMORY, memaddr, myaddr, len);
}
/* 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);
+ read_memory_object (TARGET_OBJECT_CODE_MEMORY, memaddr, myaddr, len);
}
/* Read memory at MEMADDR of length LEN and put the contents in
return 1;
}
+/* Read memory at MEMADDR of length LEN and put the contents in
+ RETURN_VALUE. Return 0 if MEMADDR couldn't be read and non-zero
+ if successful. */
+
+int
+safe_read_memory_unsigned_integer (CORE_ADDR memaddr, int len,
+ enum bfd_endian byte_order,
+ ULONGEST *return_value)
+{
+ gdb_byte buf[sizeof (ULONGEST)];
+
+ if (target_read_memory (memaddr, buf, len))
+ return 0;
+
+ *return_value = extract_unsigned_integer (buf, len, byte_order);
+ return 1;
+}
+
LONGEST
read_memory_integer (CORE_ADDR memaddr, int len,
enum bfd_endian byte_order)
status = target_write_memory (memaddr, myaddr, len);
if (status != 0)
- memory_error (status, memaddr);
+ memory_error (TARGET_XFER_E_IO, memaddr);
}
/* Same as write_memory, but notify 'memory_changed' observers. */