Add size tracing tool
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jaseg
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03e8443e2e
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bf7e8701c7
5 changed files with 596 additions and 0 deletions
126
controller/fw/tools/ldparser.py
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126
controller/fw/tools/ldparser.py
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import sys
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import pyparsing as pp
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from pyparsing import pyparsing_common as ppc
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LPAREN, RPAREN, LBRACE, RBRACE, LBROK, RBROK, COLON, SEMICOLON, EQUALS, COMMA = map(pp.Suppress, '(){}<>:;=,')
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parse_suffix_int = lambda lit: int(lit[:-1]) * (10**(3*(1 + 'kmgtpe'.find(lit[-1].lower()))))
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si_suffix = pp.oneOf('k m g t p e', caseless=True)
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numeric_literal = pp.Regex('0x[0-9a-fA-F]+').setName('hex int').setParseAction(pp.tokenMap(int, 16)) \
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| (pp.Regex('[0-9]+[kKmMgGtTpPeE]')).setName('size int').setParseAction(pp.tokenMap(parse_suffix_int)) \
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| pp.Word(pp.nums).setName('int').setParseAction(pp.tokenMap(int))
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access_def = pp.Regex('[rR]?[wW]?[xX]?').setName('access literal').setParseAction(pp.tokenMap(str.lower))
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origin_expr = pp.Suppress(pp.CaselessKeyword('ORIGIN')) + EQUALS + numeric_literal
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length_expr = pp.Suppress(pp.CaselessKeyword('LENGTH')) + EQUALS + numeric_literal
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mem_expr = pp.Group(ppc.identifier + LPAREN + access_def + RPAREN + COLON + origin_expr + COMMA + length_expr)
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mem_contents = pp.ZeroOrMore(mem_expr)
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mem_toplevel = pp.CaselessKeyword("MEMORY") + pp.Group(LBRACE + pp.Optional(mem_contents, []) + RBRACE)
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glob = pp.Word(pp.alphanums + '._*')
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match_expr = pp.Forward()
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assignment = pp.Forward()
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funccall = pp.Group(pp.Word(pp.alphas + '_') + LPAREN + (assignment | numeric_literal | match_expr | glob | ppc.identifier) + RPAREN + pp.Optional(SEMICOLON))
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value = numeric_literal | funccall | ppc.identifier | '.'
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formula = (value + pp.oneOf('+ = * / %') + value) | value
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# suppress stray semicolons
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assignment << (SEMICOLON | pp.Group((ppc.identifier | '.') + EQUALS + (formula | value) + pp.Optional(SEMICOLON)))
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match_expr << (glob + LPAREN + pp.OneOrMore(funccall | glob) + RPAREN)
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section_contents = pp.ZeroOrMore(assignment | funccall | match_expr);
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section_name = pp.Regex('\.[a-zA-Z0-9_.]+')
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section_def = pp.Group(section_name + pp.Optional(numeric_literal) + COLON + LBRACE + pp.Group(section_contents) +
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RBRACE + pp.Optional(RBROK + ppc.identifier + pp.Optional('AT' + RBROK + ppc.identifier)))
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sec_contents = pp.ZeroOrMore(section_def | assignment)
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sections_toplevel = pp.Group(pp.CaselessKeyword("SECTIONS").suppress() + LBRACE + sec_contents + RBRACE)
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toplevel_elements = mem_toplevel | funccall | sections_toplevel | assignment
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ldscript = pp.Group(pp.ZeroOrMore(toplevel_elements))
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ldscript.ignore(pp.cppStyleComment)
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if __name__ == '__main__':
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import argparse
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parser = argparse.ArgumentParser()
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parser.add_argument('linker_script', type=argparse.FileType('r'))
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args = parser.parse_args()
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#print(mem_expr.parseString('FLASH (rx) : ORIGIN = 0x0800000, LENGTH = 512K', parseAll=True))
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# print(ldscript.parseString('''
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# /* Entry Point */
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# ENTRY(Reset_Handler)
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#
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# /* Highest address of the user mode stack */
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# _estack = 0x20020000; /* end of RAM */
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# /* Generate a link error if heap and stack don't fit into RAM */
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# _Min_Heap_Size = 0x200;; /* required amount of heap */
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# _Min_Stack_Size = 0x400;; /* required amount of stack */
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# ''', parseAll=True))
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print(ldscript.parseFile(args.linker_script, parseAll=True))
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#print(funccall.parseString('KEEP(*(.isr_vector))'))
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#print(section_contents.parseString('''
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# . = ALIGN(4);
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# KEEP(*(.isr_vector)) /* Startup code */
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# . = ALIGN(4);
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# ''', parseAll=True))
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#print(section_def.parseString('''
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# .text :
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# {
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# . = ALIGN(4);
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# *(.text) /* .text sections (code) */
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# *(.text*) /* .text* sections (code) */
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# *(.glue_7) /* glue arm to thumb code */
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# *(.glue_7t) /* glue thumb to arm code */
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# *(.eh_frame)
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#
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# KEEP (*(.init))
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# KEEP (*(.fini))
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#
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# . = ALIGN(4);
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# _etext = .; /* define a global symbols at end of code */
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# } >FLASH
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# ''', parseAll=True))
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#print(section_def.parseString('.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH', parseAll=True))
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#print(assignment.parseString('__preinit_array_start = .', parseAll=True))
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#print(assignment.parseString('a = 23', parseAll=True))
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#print(funccall.parseString('foo (a=23)', parseAll=True))
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#print(funccall.parseString('PROVIDE_HIDDEN (__preinit_array_start = .);', parseAll=True))
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#print(section_def.parseString('''
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# .preinit_array :
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# {
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# PROVIDE_HIDDEN (__preinit_array_start = .);
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# KEEP (*(.preinit_array*))
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# PROVIDE_HIDDEN (__preinit_array_end = .);
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# } >FLASH''', parseAll=True))
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#print(match_expr.parseString('*(SORT(.init_array.*))', parseAll=True))
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#print(funccall.parseString('KEEP (*(SORT(.init_array.*)))', parseAll=True))
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#print(section_def.parseString('''
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# .init_array :
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# {
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# PROVIDE_HIDDEN (__init_array_start = .);
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# KEEP (*(SORT(.init_array.*)))
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# KEEP (*(.init_array*))
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# PROVIDE_HIDDEN (__init_array_end = .);
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# } >FLASH
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# ''', parseAll=True))
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#print(match_expr.parseString('*(.ARM.extab* .gnu.linkonce.armextab.*)', parseAll=True))
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#print(formula.parseString('. + _Min_Heap_Size', parseAll=True))
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#print(assignment.parseString('. = . + _Min_Heap_Size;', parseAll=True))
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#print(sections_toplevel.parseString('''
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# SECTIONS
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# {
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# .ARMattributes : { }
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# }
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# ''', parseAll=True))
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#sys.exit(0)
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