e1f544c1cf
`rp` and other commands were broken for me because they always showed
the object as a T_NONE.
The reason was that instead of returning the type `struct RBasic`,
FindFirstType("struct RBasic") was returning
`yjit::cruby::autogened::RBasic`.
Explicitly asking for the top-level RBasic by prefixing it with `::` is
enough to fix those commands.
32 lines
1.5 KiB
Python
32 lines
1.5 KiB
Python
import lldb
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import re
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from lldb_rb.constants import *
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from lldb_rb.rb_base_command import RbBaseCommand
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class PrintFlagsCommand(RbBaseCommand):
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program = "print_flags"
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help_string = "Print out the individial flags of an RVALUE object in human readable format"
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# call is where our command logic will be implemented
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def call(self, debugger, command, exe_ctx, result):
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rclass_t = self.target.FindFirstType("::RBasic")
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rcass_ptr = self.target.EvaluateExpression(command).Cast(rclass_t.GetPointerType())
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obj_flags = rcass_ptr.GetValueForExpressionPath("->flags").GetValueAsUnsigned()
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flags = [
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"RUBY_FL_WB_PROTECTED", "RUBY_FL_PROMOTED", "RUBY_FL_FINALIZE",
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"RUBY_FL_SHAREABLE", "RUBY_FL_EXIVAR", "RUBY_FL_FREEZE",
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"RUBY_FL_USER0", "RUBY_FL_USER1", "RUBY_FL_USER2", "RUBY_FL_USER3", "RUBY_FL_USER4",
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"RUBY_FL_USER5", "RUBY_FL_USER6", "RUBY_FL_USER7", "RUBY_FL_USER8", "RUBY_FL_USER9",
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"RUBY_FL_USER10", "RUBY_FL_USER11", "RUBY_FL_USER12", "RUBY_FL_USER13", "RUBY_FL_USER14",
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"RUBY_FL_USER15", "RUBY_FL_USER16", "RUBY_FL_USER17", "RUBY_FL_USER18"
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]
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types_index = {v: k for k, v in self.ruby_globals.items() if re.match(r'RUBY_T_', k)}
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print("TYPE: {}".format(types_index[obj_flags & self.ruby_globals["RUBY_T_MASK"]]))
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for flag in flags:
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output = "{} : {}".format(flag, "1" if (obj_flags & self.ruby_globals[flag]) else "0")
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print(output, file=result)
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