def WriteSymbols(self, section):
"""Write symbol values into binary files for access at run time
+ As a special case, if symbols_base is not specified and this is an
+ end-at-4gb image, a symbols_base of 0 is used
+
Args:
section: Section containing the entry
"""
if self.auto_write_symbols and not self.no_write_symbols:
# Check if we are writing symbols into an ELF file
is_elf = self.GetDefaultFilename() == self.elf_fname
+
+ symbols_base = self.symbols_base
+ if symbols_base is None and self.GetImage()._end_4gb:
+ symbols_base = 0
+
elf.LookupAndWriteSymbols(self.elf_fname, self, section.GetImage(),
- is_elf, self.elf_base_sym,
- self.symbols_base)
+ is_elf, self.elf_base_sym, symbols_base)
def CheckEntries(self):
"""Check that the entry offsets are correct
optional: True if the symbol is optional. If False this function
will raise if the symbol is not found
msg: Message to display if an error occurs
- base_addr: Base address of image. This is added to the returned
- image_pos in most cases so that the returned position indicates
- where the targetted entry/binary has actually been loaded. But
- if end-at-4gb is used, this is not done, since the binary is
- already assumed to be linked to the ROM position and using
- execute-in-place (XIP).
+ base_addr (int): Base address of image. This is added to the
+ returned value of image-pos so that the returned position
+ indicates where the targeted entry/binary has actually been
+ loaded
Returns:
Value that should be assigned to that symbol, or None if it was
if prop_name == 'offset':
return entry.offset
elif prop_name == 'image_pos':
- value = entry.image_pos
- if not self.GetImage()._end_4gb:
- value += base_addr
- return value
+ return base_addr + entry.image_pos
if prop_name == 'size':
return entry.size
else:
optional: True if the symbol is optional. If False this function
will raise if the symbol is not found
msg: Message to display if an error occurs
- base_addr: Base address of image. This is added to the returned
- image_pos in most cases so that the returned position indicates
- where the targeted entry/binary has actually been loaded. But
- if end-at-4gb is used, this is not done, since the binary is
- already assumed to be linked to the ROM position and using
- execute-in-place (XIP).
+ base_addr (int): Base address of image. This is added to the
+ returned value of image-pos so that the returned position
+ indicates where the targeted entry/binary has actually been
+ loaded
Returns:
Value that should be assigned to that symbol, or None if it was