diff options
Diffstat (limited to 'misc/lldb_cruby.py')
-rwxr-xr-x | misc/lldb_cruby.py | 137 |
1 files changed, 84 insertions, 53 deletions
diff --git a/misc/lldb_cruby.py b/misc/lldb_cruby.py index c046e7fbb1..400ccb45b9 100755 --- a/misc/lldb_cruby.py +++ b/misc/lldb_cruby.py @@ -9,13 +9,16 @@ from __future__ import print_function import lldb import os +import inspect +import sys import shlex +import platform +import glob -HEAP_PAGE_ALIGN_LOG = 14 -HEAP_PAGE_ALIGN_MASK = (~(~0 << HEAP_PAGE_ALIGN_LOG)) -HEAP_PAGE_ALIGN = (1 << HEAP_PAGE_ALIGN_LOG) -HEAP_PAGE_SIZE = HEAP_PAGE_ALIGN +from lldb_rb.constants import * +# BEGIN FUNCTION STYLE DECLS +# This will be refactored to use class style decls in the misc/commands dir class BackTrace: VM_FRAME_MAGIC_METHOD = 0x11110001 VM_FRAME_MAGIC_BLOCK = 0x22220001 @@ -75,7 +78,7 @@ class BackTrace: pathobj = pathobj.Cast(self.tRArray) if flags & RUBY_FL_USER1: - len = ((flags & (RUBY_FL_USER3|RUBY_FL_USER4)) >> (RUBY_FL_USHIFT+3)) + len = ((flags & (RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6|RUBY_FL_USER7|RUBY_FL_USER8|RUBY_FL_USER9)) >> (RUBY_FL_USHIFT+3)) ptr = pathobj.GetValueForExpressionPath("->as.ary") else: len = pathobj.GetValueForExpressionPath("->as.heap.len").GetValueAsSigned() @@ -166,6 +169,14 @@ def lldb_init(debugger): value_types = [] g = globals() + + imemo_types = target.FindFirstType('enum imemo_type') + enum_members = imemo_types.GetEnumMembers() + + for i in range(enum_members.GetSize()): + member = enum_members.GetTypeEnumMemberAtIndex(i) + g[member.GetName()] = member.GetValueAsUnsigned() + for enum in target.FindFirstGlobalVariable('ruby_dummy_gdb_enums'): enum = enum.GetType() members = enum.GetEnumMembers() @@ -186,18 +197,16 @@ def string2cstr(rstring): flags = rstring.GetValueForExpressionPath(".basic->flags").unsigned if flags & RUBY_T_MASK != RUBY_T_STRING: raise TypeError("not a string") + clen = int(rstring.GetValueForExpressionPath(".len").value, 0) if flags & RUBY_FL_USER1: cptr = int(rstring.GetValueForExpressionPath(".as.heap.ptr").value, 0) - clen = int(rstring.GetValueForExpressionPath(".as.heap.len").value, 0) else: - cptr = int(rstring.GetValueForExpressionPath(".as.ary").location, 0) - clen = (flags & RSTRING_EMBED_LEN_MASK) >> RSTRING_EMBED_LEN_SHIFT + cptr = int(rstring.GetValueForExpressionPath(".as.embed.ary").location, 0) return cptr, clen def output_string(debugger, result, rstring): cptr, clen = string2cstr(rstring) - expr = "print *(const char (*)[%d])%0#x" % (clen, cptr) - append_command_output(debugger, expr, result) + append_expression(debugger, "*(const char (*)[%d])%0#x" % (clen, cptr), result) def fixnum_p(x): return x & RUBY_FIXNUM_FLAG != 0 @@ -216,6 +225,9 @@ def append_command_output(debugger, command, result): result.write(output1) result.write(output2) +def append_expression(debugger, expression, result): + append_command_output(debugger, "expression " + expression, result) + def lldb_rp(debugger, command, result, internal_dict): if not ('RUBY_Qfalse' in globals()): lldb_init(debugger) @@ -247,13 +259,13 @@ def lldb_inspect(debugger, target, result, val): elif fixnum_p(num): print(num >> 1, file=result) elif flonum_p(num): - append_command_output(debugger, "print rb_float_value(%0#x)" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "rb_float_value(%0#x)" % val.GetValueAsUnsigned(), result) elif static_sym_p(num): if num < 128: print("T_SYMBOL: %c" % num, file=result) else: print("T_SYMBOL: (%x)" % num, file=result) - append_command_output(debugger, "p rb_id2name(%0#x)" % (num >> 8), result) + append_expression(debugger, "rb_id2name(%0#x)" % (num >> 8), result) elif num & RUBY_IMMEDIATE_MASK: print('immediate(%x)' % num, file=result) else: @@ -281,10 +293,13 @@ def lldb_inspect(debugger, target, result, val): print('T_NIL: %s%s' % (flaginfo, val.Dereference()), file=result) elif flType == RUBY_T_OBJECT: result.write('T_OBJECT: %s' % flaginfo) - append_command_output(debugger, "print *(struct RObject*)%0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "*(struct RObject*)%0#x" % val.GetValueAsUnsigned(), result) elif flType == RUBY_T_CLASS or flType == RUBY_T_MODULE or flType == RUBY_T_ICLASS: result.write('T_%s: %s' % ('CLASS' if flType == RUBY_T_CLASS else 'MODULE' if flType == RUBY_T_MODULE else 'ICLASS', flaginfo)) - append_command_output(debugger, "print *(struct RClass*)%0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "*(struct RClass*)%0#x" % val.GetValueAsUnsigned(), result) + tRClass = target.FindFirstType("struct RClass") + if not val.Cast(tRClass).GetChildMemberWithName("ptr").IsValid(): + append_expression(debugger, "*(struct rb_classext_struct*)%0#x" % (val.GetValueAsUnsigned() + tRClass.GetByteSize()), result) elif flType == RUBY_T_STRING: result.write('T_STRING: %s' % flaginfo) encidx = ((flags & RUBY_ENCODING_MASK)>>RUBY_ENCODING_SHIFT) @@ -298,24 +313,23 @@ def lldb_inspect(debugger, target, result, val): if len == 0: result.write("(empty)\n") else: - append_command_output(debugger, "print *(const char (*)[%d])%0#x" % (len, ptr), result) + append_expression(debugger, "*(const char (*)[%d])%0#x" % (len, ptr), result) elif flType == RUBY_T_SYMBOL: result.write('T_SYMBOL: %s' % flaginfo) tRSymbol = target.FindFirstType("struct RSymbol").GetPointerType() val = val.Cast(tRSymbol) - append_command_output(debugger, 'print (ID)%0#x ' % val.GetValueForExpressionPath("->id").GetValueAsUnsigned(), result) + append_expression(debugger, '(ID)%0#x ' % val.GetValueForExpressionPath("->id").GetValueAsUnsigned(), result) tRString = target.FindFirstType("struct RString").GetPointerType() output_string(debugger, result, val.GetValueForExpressionPath("->fstr").Cast(tRString)) elif flType == RUBY_T_ARRAY: tRArray = target.FindFirstType("struct RArray").GetPointerType() val = val.Cast(tRArray) if flags & RUBY_FL_USER1: - len = ((flags & (RUBY_FL_USER3|RUBY_FL_USER4)) >> (RUBY_FL_USHIFT+3)) + len = ((flags & (RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6|RUBY_FL_USER7|RUBY_FL_USER8|RUBY_FL_USER9)) >> (RUBY_FL_USHIFT+3)) ptr = val.GetValueForExpressionPath("->as.ary") else: len = val.GetValueForExpressionPath("->as.heap.len").GetValueAsSigned() ptr = val.GetValueForExpressionPath("->as.heap.ptr") - #print(val.GetValueForExpressionPath("->as.heap"), file=result) result.write("T_ARRAY: %slen=%d" % (flaginfo, len)) if flags & RUBY_FL_USER1: result.write(" (embed)") @@ -330,12 +344,12 @@ def lldb_inspect(debugger, target, result, val): else: result.write("\n") if ptr.GetValueAsSigned() == 0: - append_command_output(debugger, "expression -fx -- ((struct RArray*)%0#x)->as.ary" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "-fx -- ((struct RArray*)%0#x)->as.ary" % val.GetValueAsUnsigned(), result) else: - append_command_output(debugger, "expression -Z %d -fx -- (const VALUE*)%0#x" % (len, ptr.GetValueAsUnsigned()), result) + append_expression(debugger, "-Z %d -fx -- (const VALUE*)%0#x" % (len, ptr.GetValueAsUnsigned()), result) elif flType == RUBY_T_HASH: result.write("T_HASH: %s" % flaginfo) - append_command_output(debugger, "p *(struct RHash *) %0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "*(struct RHash *) %0#x" % val.GetValueAsUnsigned(), result) elif flType == RUBY_T_BIGNUM: tRBignum = target.FindFirstType("struct RBignum").GetPointerType() val = val.Cast(tRBignum) @@ -343,15 +357,15 @@ def lldb_inspect(debugger, target, result, val): if flags & RUBY_FL_USER2: len = ((flags & (RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5)) >> (RUBY_FL_USHIFT+3)) print("T_BIGNUM: sign=%s len=%d (embed)" % (sign, len), file=result) - append_command_output(debugger, "print ((struct RBignum *) %0#x)->as.ary" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "((struct RBignum *) %0#x)->as.ary" % val.GetValueAsUnsigned(), result) else: len = val.GetValueForExpressionPath("->as.heap.len").GetValueAsSigned() print("T_BIGNUM: sign=%s len=%d" % (sign, len), file=result) print(val.Dereference(), file=result) - append_command_output(debugger, "expression -Z %x -fx -- (const BDIGIT*)((struct RBignum*)%d)->as.heap.digits" % (len, val.GetValueAsUnsigned()), result) - # append_command_output(debugger, "x ((struct RBignum *) %0#x)->as.heap.digits / %d" % (val.GetValueAsUnsigned(), len), result) + append_expression(debugger, "-Z %x -fx -- (const BDIGIT*)((struct RBignum*)%d)->as.heap.digits" % (len, val.GetValueAsUnsigned()), result) + # append_expression(debugger, "((struct RBignum *) %0#x)->as.heap.digits / %d" % (val.GetValueAsUnsigned(), len), result) elif flType == RUBY_T_FLOAT: - append_command_output(debugger, "print ((struct RFloat *)%d)->float_value" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "((struct RFloat *)%d)->float_value" % val.GetValueAsUnsigned(), result) elif flType == RUBY_T_RATIONAL: tRRational = target.FindFirstType("struct RRational").GetPointerType() val = val.Cast(tRRational) @@ -384,34 +398,39 @@ def lldb_inspect(debugger, target, result, val): flag = val.GetValueForExpressionPath("->typed_flag") if flag.GetValueAsUnsigned() == 1: print("T_DATA: %s" % val.GetValueForExpressionPath("->type->wrap_struct_name"), file=result) - append_command_output(debugger, "p *(struct RTypedData *) %0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "*(struct RTypedData *) %0#x" % val.GetValueAsUnsigned(), result) else: print("T_DATA:", file=result) - append_command_output(debugger, "p *(struct RData *) %0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "*(struct RData *) %0#x" % val.GetValueAsUnsigned(), result) elif flType == RUBY_T_NODE: tRTypedData = target.FindFirstType("struct RNode").GetPointerType() nd_type = (flags & RUBY_NODE_TYPEMASK) >> RUBY_NODE_TYPESHIFT - append_command_output(debugger, "p (node_type) %d" % nd_type, result) + append_expression(debugger, "(node_type) %d" % nd_type, result) val = val.Cast(tRTypedData) - append_command_output(debugger, "p *(struct RNode *) %0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "*(struct RNode *) %0#x" % val.GetValueAsUnsigned(), result) elif flType == RUBY_T_MOVED: tRTypedData = target.FindFirstType("struct RMoved").GetPointerType() val = val.Cast(tRTypedData) - append_command_output(debugger, "p *(struct RMoved *) %0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "*(struct RMoved *) %0#x" % val.GetValueAsUnsigned(), result) elif flType == RUBY_T_MATCH: tRTypedData = target.FindFirstType("struct RMatch").GetPointerType() val = val.Cast(tRTypedData) - append_command_output(debugger, "p *(struct RMatch *) %0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "*(struct RMatch *) %0#x" % val.GetValueAsUnsigned(), result) elif flType == RUBY_T_IMEMO: # I'm not sure how to get IMEMO_MASK out of lldb. It's not in globals() imemo_type = (flags >> RUBY_FL_USHIFT) & 0x0F # IMEMO_MASK + print("T_IMEMO: ", file=result) - append_command_output(debugger, "p (enum imemo_type) %d" % imemo_type, result) - append_command_output(debugger, "p *(struct MEMO *) %0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "(enum imemo_type) %d" % imemo_type, result) + append_expression(debugger, "*(struct MEMO *) %0#x" % val.GetValueAsUnsigned(), result) + elif flType == RUBY_T_STRUCT: + tRTypedData = target.FindFirstType("struct RStruct").GetPointerType() + val = val.Cast(tRTypedData) + append_expression(debugger, "*(struct RStruct *) %0#x" % val.GetValueAsUnsigned(), result) elif flType == RUBY_T_ZOMBIE: tRZombie = target.FindFirstType("struct RZombie").GetPointerType() val = val.Cast(tRZombie) - append_command_output(debugger, "p *(struct RZombie *) %0#x" % val.GetValueAsUnsigned(), result) + append_expression(debugger, "*(struct RZombie *) %0#x" % val.GetValueAsUnsigned(), result) else: print("Not-handled type %0#x" % flType, file=result) print(val, file=result) @@ -452,19 +471,6 @@ def check_bits(page, bitmap_name, bitmap_index, bitmap_bit, v): else: return ' ' -def heap_page(debugger, command, ctx, 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) - append_command_output(debugger, "p (struct heap_page *) %0#x" % page.GetValueAsUnsigned(), result) - append_command_output(debugger, "p *(struct heap_page *) %0#x" % page.GetValueAsUnsigned(), result) - def heap_page_body(debugger, command, ctx, result, internal_dict): target = debugger.GetSelectedTarget() process = target.GetProcess() @@ -497,6 +503,8 @@ def dump_node(debugger, command, ctx, result, internal_dict): output_string(ctx, result, dump) def rb_backtrace(debugger, command, result, internal_dict): + if not ('RUBY_Qfalse' in globals()): + lldb_init(debugger) bt = BackTrace(debugger, command, result, internal_dict) frame = bt.frame @@ -595,9 +603,13 @@ def dump_page_internal(page, target, process, thread, frame, result, debugger, h try: flidx = "%3d" % freelist.index(obj_addr) except ValueError: - flidx = ' ' + flidx = ' -1' - result_str = "%s idx: [%3d] freelist_idx: {%s} Addr: %0#x (flags: %0#x)" % (rb_type(flags, ruby_type_map), page_index, flidx, obj_addr, flags) + if flType == RUBY_T_NONE: + klass = obj.GetChildMemberWithName('klass').GetValueAsUnsigned() + result_str = "%s idx: [%3d] freelist_idx: {%s} Addr: %0#x (flags: %0#x, next: %0#x)" % (rb_type(flags, ruby_type_map), page_index, flidx, obj_addr, flags, klass) + else: + result_str = "%s idx: [%3d] freelist_idx: {%s} Addr: %0#x (flags: %0#x)" % (rb_type(flags, ruby_type_map), page_index, flidx, obj_addr, flags) if highlight == obj_addr: result_str = ' '.join([result_str, "<<<<<"]) @@ -701,18 +713,37 @@ def rb_id2str(debugger, command, result, internal_dict): pos = (num % ID_ENTRY_UNIT) * ID_ENTRY_SIZE id_str = rb_ary_entry(target, ary, pos, result) lldb_inspect(debugger, target, result, id_str) +# END FUNCTION STYLE DECLS + + +load_dir, _ = os.path.split(os.path.realpath(__file__)) + +for fname in glob.glob(f"{load_dir}/lldb_rb/commands/*_command.py"): + _, basename = os.path.split(fname) + mname, _ = os.path.splitext(basename) + + exec(f"import lldb_rb.commands.{mname}") def __lldb_init_module(debugger, internal_dict): - debugger.HandleCommand("command script add -f lldb_cruby.lldb_rp rp") + # Register all classes that subclass RbBaseCommand + + for memname, mem in inspect.getmembers(sys.modules["lldb_rb.rb_base_command"]): + if memname == "RbBaseCommand": + for sclass in mem.__subclasses__(): + sclass.register_lldb_command(debugger, f"{__name__}.{sclass.__module__}") + + + ## FUNCTION INITS - These should be removed when converted to class commands + debugger.HandleCommand("command script add -f lldb_cruby.lldb_rp old_rp") debugger.HandleCommand("command script add -f lldb_cruby.count_objects rb_count_objects") debugger.HandleCommand("command script add -f lldb_cruby.stack_dump_raw SDR") debugger.HandleCommand("command script add -f lldb_cruby.dump_node dump_node") - debugger.HandleCommand("command script add -f lldb_cruby.heap_page heap_page") 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") - debugger.HandleCommand("command script add -f lldb_cruby.rb_id2str rb_id2str") + debugger.HandleCommand("command script add -f lldb_cruby.rb_id2str old_rb_id2str") + + lldb_rb.rb_base_command.RbBaseCommand.lldb_init(debugger) - lldb_init(debugger) print("lldb scripts for ruby has been installed.") |