From 8b522befbf2eed8d9ce2f51098bc152787e16ead Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 29 Jul 2010 21:47:02 +0200 Subject: [PATCH] re PR debug/45110 (GCC does not emit DW_AT_object_pointer) PR debug/45110 * dwarf2out.c (dwarf_attr_name): Handle DW_AT_object_pointer. (gen_formal_types_die): Add DW_AT_object_pointer in methods. (gen_subprogram_die): Likewise. Remove it when removing declaration's formal parameters. (gen_decl_die): Change return type to dw_die_ref, return what gen_formal_parameter_die returned. From-SVN: r162691 --- gcc/ChangeLog | 10 ++++++++++ gcc/dwarf2out.c | 42 ++++++++++++++++++++++++++++++------------ 2 files changed, 40 insertions(+), 12 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 92c4b1f..a72b830 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,13 @@ +2010-07-29 Jakub Jelinek + + PR debug/45110 + * dwarf2out.c (dwarf_attr_name): Handle DW_AT_object_pointer. + (gen_formal_types_die): Add DW_AT_object_pointer in methods. + (gen_subprogram_die): Likewise. Remove it when removing declaration's + formal parameters. + (gen_decl_die): Change return type to dw_die_ref, return what + gen_formal_parameter_die returned. + 2010-07-29 Martin Jambor * dbgcnt.def (eipa_sra): New counter. diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index f9fc997..95de468 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -6300,7 +6300,7 @@ static int is_redundant_typedef (const_tree); static bool is_naming_typedef_decl (const_tree); static inline dw_die_ref get_context_die (tree); static void gen_namespace_die (tree, dw_die_ref); -static void gen_decl_die (tree, tree, dw_die_ref); +static dw_die_ref gen_decl_die (tree, tree, dw_die_ref); static dw_die_ref force_decl_die (tree); static dw_die_ref force_type_die (tree); static dw_die_ref setup_namespace_context (tree, dw_die_ref); @@ -6809,6 +6809,8 @@ dwarf_attr_name (unsigned int attr) return "DW_AT_call_file"; case DW_AT_call_line: return "DW_AT_call_line"; + case DW_AT_object_pointer: + return "DW_AT_object_pointer"; case DW_AT_signature: return "DW_AT_signature"; @@ -18371,9 +18373,14 @@ gen_formal_types_die (tree function_or_method_type, dw_die_ref context_die) parm_die = gen_formal_parameter_die (formal_type, NULL, true /* Emit name attribute. */, context_die); - if ((TREE_CODE (function_or_method_type) == METHOD_TYPE - && link == first_parm_type) - || (arg && DECL_ARTIFICIAL (arg))) + if (TREE_CODE (function_or_method_type) == METHOD_TYPE + && link == first_parm_type) + { + add_AT_flag (parm_die, DW_AT_artificial, 1); + if (dwarf_version >= 3 || !dwarf_strict) + add_AT_die_ref (context_die, DW_AT_object_pointer, parm_die); + } + else if (arg && DECL_ARTIFICIAL (arg)) add_AT_flag (parm_die, DW_AT_artificial, 1); link = TREE_CHAIN (link); @@ -18648,6 +18655,7 @@ gen_subprogram_die (tree decl, dw_die_ref context_die) cases die that forced declaration die (e.g. TAG_imported_module) is one of the children that we do not want to remove. */ remove_AT (subr_die, DW_AT_declaration); + remove_AT (subr_die, DW_AT_object_pointer); remove_child_TAG (subr_die, DW_TAG_formal_parameter); } else @@ -18886,7 +18894,14 @@ gen_subprogram_die (tree decl, dw_die_ref context_die) &parm); else if (parm) { - gen_decl_die (parm, NULL, subr_die); + dw_die_ref parm_die = gen_decl_die (parm, NULL, subr_die); + + if (parm == DECL_ARGUMENTS (decl) + && TREE_CODE (TREE_TYPE (decl)) == METHOD_TYPE + && parm_die + && (dwarf_version >= 3 || !dwarf_strict)) + add_AT_die_ref (subr_die, DW_AT_object_pointer, parm_die); + parm = DECL_CHAIN (parm); } @@ -20433,16 +20448,18 @@ gen_namespace_die (tree decl, dw_die_ref context_die) } } -/* Generate Dwarf debug information for a decl described by DECL. */ +/* Generate Dwarf debug information for a decl described by DECL. + The return value is currently only meaningful for PARM_DECLs, + for all other decls it returns NULL. */ -static void +static dw_die_ref gen_decl_die (tree decl, tree origin, dw_die_ref context_die) { tree decl_or_origin = decl ? decl : origin; tree class_origin = NULL, ultimate_origin; if (DECL_P (decl_or_origin) && DECL_IGNORED_P (decl_or_origin)) - return; + return NULL; switch (TREE_CODE (decl_or_origin)) { @@ -20613,10 +20630,9 @@ gen_decl_die (tree decl, tree origin, dw_die_ref context_die) gen_type_die (TREE_TYPE (TREE_TYPE (decl_or_origin)), context_die); else gen_type_die (TREE_TYPE (decl_or_origin), context_die); - gen_formal_parameter_die (decl, origin, - true /* Emit name attribute. */, - context_die); - break; + return gen_formal_parameter_die (decl, origin, + true /* Emit name attribute. */, + context_die); case NAMESPACE_DECL: case IMPORTED_DECL: @@ -20629,6 +20645,8 @@ gen_decl_die (tree decl, tree origin, dw_die_ref context_die) gcc_assert ((int)TREE_CODE (decl) > NUM_TREE_CODES); break; } + + return NULL; } /* Output debug information for global decl DECL. Called from toplev.c after -- 2.7.4