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lldb: dump_page_rvalue - dump a heap page containing an RVALUE

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rather than having to do this in a two step process:

1. heap_page obj
2. dump_page $2 (or whatever lldb variable heap_page set)

we can now just

dump_page_rvalue obj
This commit is contained in:
Matt Valentine-House 2021-04-27 12:17:55 +01:00 committed by Peter Zhu
parent c752a35816
commit f64bb9fc84
Notes: git 2021-04-27 23:59:15 +09:00 
Merged: https://github.com/ruby/ruby/pull/4420
1 changed files with 30 additions and 10 deletions
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40
misc/lldb_cruby.py
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@ -552,19 +552,10 @@ class HeapPageIter:
raise StopIteration
def dump_page(debugger, command, result, internal_dict):
def dump_page_internal(page, target, process, thread, frame, result, debugger):
if not ('RUBY_Qfalse' in globals()):
lldb_init(debugger)
target = debugger.GetSelectedTarget()
process = target.GetProcess()
thread = process.GetSelectedThread()
frame = thread.GetSelectedFrame()
tHeapPageP = target.FindFirstType("struct heap_page").GetPointerType()
page = frame.EvaluateExpression(command)
page = page.Cast(tHeapPageP)
ruby_type_map = ruby_types(debugger)
freelist = []
@ -593,6 +584,34 @@ def dump_page(debugger, command, result, internal_dict):
print(result_str, file=result)
def dump_page(debugger, command, result, internal_dict):
target = debugger.GetSelectedTarget()
process = target.GetProcess()
thread = process.GetSelectedThread()
frame = thread.GetSelectedFrame()
tHeapPageP = target.FindFirstType("struct heap_page").GetPointerType()
page = frame.EvaluateExpression(command)
page = page.Cast(tHeapPageP)
dump_page_internal(page, target, process, thread, frame, result, debugger)
def dump_page_rvalue(debugger, command, result, internal_dict):
target = debugger.GetSelectedTarget()
process = target.GetProcess()
thread = process.GetSelectedThread()
frame = thread.GetSelectedFrame()
val = frame.EvaluateExpression(command)
page = get_page(lldb, target, val)
page_type = target.FindFirstType("struct heap_page").GetPointerType()
page.Cast(page_type)
dump_page_internal(page, target, process, thread, frame, result, debugger)
def rb_type(flags, ruby_types):
flType = flags & RUBY_T_MASK
return "%-10s" % (ruby_types.get(flType, ("%0#x" % flType)))
@ -623,6 +642,7 @@ def __lldb_init_module(debugger, internal_dict):
debugger.HandleCommand("command script add -f lldb_cruby.heap_page_body heap_page_body")
debugger.HandleCommand("command script add -f lldb_cruby.rb_backtrace rbbt")
debugger.HandleCommand("command script add -f lldb_cruby.dump_page dump_page")
debugger.HandleCommand("command script add -f lldb_cruby.dump_page_rvalue dump_page_rvalue")
lldb_init(debugger)
print("lldb scripts for ruby has been installed.")