forked from OSchip/llvm-project
101 lines
2.8 KiB
Python
101 lines
2.8 KiB
Python
import gdb
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import re
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# GDB Pretty Printers for most isl objects
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class IslObjectPrinter:
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"""Print an isl object"""
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def __init__ (self, val, type):
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self.val = val
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self.type = type
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def to_string (self):
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# Cast val to a void pointer to stop gdb using this pretty
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# printer for the pointer which would lead to an infinite loop.
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void_ptr = gdb.lookup_type('void').pointer()
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value = str(self.val.cast(void_ptr))
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printer = gdb.parse_and_eval("isl_printer_to_str(isl_"
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+ str(self.type)
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+ "_get_ctx(" + value + "))")
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printer = gdb.parse_and_eval("isl_printer_print_"
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+ str(self.type) + "("
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+ str(printer) + ", "
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+ value + ")")
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string = gdb.parse_and_eval("(char*)isl_printer_get_str("
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+ str(printer) + ")")
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gdb.parse_and_eval("isl_printer_free(" + str(printer) + ")")
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return string
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def display_hint (self):
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return 'string'
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class IslIntPrinter:
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"""Print an isl_int """
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def __init__ (self, val):
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self.val = val
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def to_string (self):
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# Cast val to a void pointer to stop gdb using this pretty
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# printer for the pointer which would lead to an infinite loop.
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void_ptr = gdb.lookup_type('void').pointer()
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value = str(self.val.cast(void_ptr))
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context = gdb.parse_and_eval("isl_ctx_alloc()")
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printer = gdb.parse_and_eval("isl_printer_to_str("
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+ str(context) + ")")
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printer = gdb.parse_and_eval("isl_printer_print_isl_int("
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+ str(printer) + ", "
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+ value + ")")
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string = gdb.parse_and_eval("(char*)isl_printer_get_str("
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+ str(printer) + ")")
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gdb.parse_and_eval("isl_printer_free(" + str(printer) + ")")
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gdb.parse_and_eval("isl_ctx_free(" + str(context) + ")")
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return string
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def display_hint (self):
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return 'string'
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class IslPrintCommand (gdb.Command):
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"""Print an isl value."""
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def __init__ (self):
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super (IslPrintCommand, self).__init__ ("islprint",
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gdb.COMMAND_OBSCURE)
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def invoke (self, arg, from_tty):
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arg = gdb.parse_and_eval(arg);
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printer = str_lookup_function(arg)
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if printer == None:
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print("No isl printer for this type")
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return
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print(printer.to_string())
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IslPrintCommand()
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def str_lookup_function (val):
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if val.type.code != gdb.TYPE_CODE_PTR:
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if str(val.type) == "isl_int":
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return IslIntPrinter(val)
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else:
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return None
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lookup_tag = val.type.target()
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regex = re.compile ("^isl_(.*)$")
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if lookup_tag == None:
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return None
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m = regex.match (str(lookup_tag))
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if m:
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# Those types of printers defined in isl.
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if m.group(1) in ["basic_set", "set", "union_set", "basic_map",
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"map", "union_map", "qpolynomial",
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"pw_qpolynomial", "pw_qpolynomial_fold",
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"union_pw_qpolynomial",
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"union_pw_qpolynomial_fold"]:
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return IslObjectPrinter(val, m.group(1))
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return None
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# Do not register the pretty printer.
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# gdb.current_objfile().pretty_printers.append(str_lookup_function)
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