From a471c5941e127823b95893176c7c9301c4b4cb32 Mon Sep 17 00:00:00 2001 From: Jan Kratochvil Date: Sun, 9 Oct 2011 19:43:41 +0000 Subject: gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) : Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) : Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) : Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) : Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) : Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) : Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p ®param@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests. --- gdb/c-valprint.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) (limited to 'gdb/c-valprint.c') diff --git a/gdb/c-valprint.c b/gdb/c-valprint.c index 76579d2..3461b08 100644 --- a/gdb/c-valprint.c +++ b/gdb/c-valprint.c @@ -380,10 +380,19 @@ c_val_print (struct type *type, const gdb_byte *valaddr, { if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF) { - struct value *deref_val = - value_at - (TYPE_TARGET_TYPE (type), - unpack_pointer (type, valaddr + embedded_offset)); + struct value *deref_val; + + deref_val = coerce_ref_if_computed (original_value); + if (deref_val != NULL) + { + /* More complicated computed references are not supported. */ + gdb_assert (embedded_offset == 0); + } + else + deref_val = value_at (TYPE_TARGET_TYPE (type), + unpack_pointer (type, + (valaddr + + embedded_offset))); common_val_print (deref_val, stream, recurse, options, current_language); -- cgit v1.1