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Get the insns_address_table from the vm_exec_core module table...

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Matt Valentine-House 2022-07-13 23:12:53 +01:00 committed by Aaron Patterson
parent 673759328c
commit 1df9b6c390
Notes: git 2022-07-15 00:26:10 +09:00 
Merged: https://github.com/ruby/ruby/pull/6134
1 changed files with 11 additions and 2 deletions
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13
misc/lldb_disasm.py
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@ -63,6 +63,7 @@ class IseqDisassembler:
self.internal_dict = internal_dict self.internal_dict = internal_dict
self.target = debugger.GetSelectedTarget() self.target = debugger.GetSelectedTarget()
self.insns_address_table = self.__get_insns_address_table()
self.process = self.target.GetProcess() self.process = self.target.GetProcess()
self.thread = self.process.GetSelectedThread() self.thread = self.process.GetSelectedThread()
self.frame = self.thread.GetSelectedFrame() self.frame = self.thread.GetSelectedFrame()
@ -88,7 +89,7 @@ class IseqDisassembler:
tIntPtr = target.FindFirstType("intptr_t") tIntPtr = target.FindFirstType("intptr_t")
size = target.EvaluateExpression('ruby_vminsn_type::VM_INSTRUCTION_SIZE').unsigned size = target.EvaluateExpression('ruby_vminsn_type::VM_INSTRUCTION_SIZE').unsigned
sizeOfIntPtr = tIntPtr.GetByteSize() sizeOfIntPtr = tIntPtr.GetByteSize()
addr_of_table = target.FindSymbols("vm_exec_core.insns_address_table")[0].GetSymbol().GetStartAddress().GetLoadAddress(target) addr_of_table = self.insns_address_table.GetStartAddress().GetLoadAddress(target)
my_dict = {} my_dict = {}
@ -220,6 +221,15 @@ class IseqDisassembler:
else: else:
print('error getting insn name', error) print('error getting insn name', error)
def __get_insns_address_table(self):
module = self.target.FindSymbols("vm_exec_core")[0].GetModule()
for symbol in module:
if "insns_address_table" in symbol.name and symbol.GetType() == lldb.eSymbolTypeData:
print(f"found symbol {symbol.name}")
return symbol
def disasm(debugger, command, result, internal_dict): def disasm(debugger, command, result, internal_dict):
disassembler = IseqDisassembler(debugger, command, result, internal_dict) disassembler = IseqDisassembler(debugger, command, result, internal_dict)
frame = disassembler.frame frame = disassembler.frame
@ -235,7 +245,6 @@ def disasm(debugger, command, result, internal_dict):
disassembler.disasm(val); disassembler.disasm(val);
def __lldb_init_module(debugger, internal_dict): def __lldb_init_module(debugger, internal_dict):
debugger.HandleCommand("command script add -f lldb_disasm.disasm rbdisasm") debugger.HandleCommand("command script add -f lldb_disasm.disasm rbdisasm")
print("lldb Ruby disasm installed.") print("lldb Ruby disasm installed.")