diff options
author | Aaron Patterson <tenderlove@ruby-lang.org> | 2021-05-24 16:02:17 -0700 |
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committer | Aaron Patterson <tenderlove@ruby-lang.org> | 2021-05-24 16:02:42 -0700 |
commit | 45ddefb14a0b88a70d91e29236bc7d6827e15a54 (patch) | |
tree | 88e93666bef3bfd4a58d6d28cbf7ef0d11248c6f /misc | |
parent | 4aaa98e62663f1e6e999c8741fe5bd518d178e0c (diff) |
add rb_id2str to lldb debugging scripts
Diffstat (limited to 'misc')
-rwxr-xr-x | misc/lldb_cruby.py | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/misc/lldb_cruby.py b/misc/lldb_cruby.py index fa69a9bcad..898cb2fa68 100755 --- a/misc/lldb_cruby.py +++ b/misc/lldb_cruby.py @@ -655,6 +655,51 @@ def ruby_types(debugger): return types +def rb_ary_entry(target, ary, idx, result): + tRArray = target.FindFirstType("struct RArray").GetPointerType() + ary = ary.Cast(tRArray) + flags = ary.GetValueForExpressionPath("->flags").GetValueAsUnsigned() + + if flags & RUBY_FL_USER1: + ptr = ary.GetValueForExpressionPath("->as.ary") + else: + ptr = ary.GetValueForExpressionPath("->as.heap.ptr") + + ptr_addr = ptr.GetValueAsUnsigned() + (idx * ptr.GetType().GetByteSize()) + return target.CreateValueFromAddress("ary_entry[%d]" % idx, lldb.SBAddress(ptr_addr, target), ptr.GetType().GetPointeeType()) + +def rb_id_to_serial(id_val): + if id_val > tLAST_OP_ID: + return id_val >> RUBY_ID_SCOPE_SHIFT + else: + return id_val + +def rb_id2str(debugger, command, result, internal_dict): + if not ('RUBY_Qfalse' in globals()): + lldb_init(debugger) + + target = debugger.GetSelectedTarget() + process = target.GetProcess() + thread = process.GetSelectedThread() + frame = thread.GetSelectedFrame() + global_symbols = target.FindFirstGlobalVariable("ruby_global_symbols") + + id_val = frame.EvaluateExpression(command).GetValueAsUnsigned() + num = rb_id_to_serial(id_val) + + last_id = global_symbols.GetChildMemberWithName("last_id").GetValueAsUnsigned() + ID_ENTRY_SIZE = 2 + ID_ENTRY_UNIT = int(target.FindFirstGlobalVariable("ID_ENTRY_UNIT").GetValue()) + + ids = global_symbols.GetChildMemberWithName("ids") + + if (num <= last_id): + idx = num // ID_ENTRY_UNIT + ary = rb_ary_entry(target, ids, idx, result) + pos = (num % ID_ENTRY_UNIT) * ID_ENTRY_SIZE + id_str = rb_ary_entry(target, ary, pos, result) + lldb_inspect(debugger, target, result, id_str) + def __lldb_init_module(debugger, internal_dict): debugger.HandleCommand("command script add -f lldb_cruby.lldb_rp rp") debugger.HandleCommand("command script add -f lldb_cruby.count_objects rb_count_objects") @@ -665,6 +710,7 @@ def __lldb_init_module(debugger, internal_dict): 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") + debugger.HandleCommand("command script add -f lldb_cruby.rb_id2str rb_id2str") lldb_init(debugger) print("lldb scripts for ruby has been installed.") |