X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fcp-valprint.c;h=73fe03d5c9b035f12aea2192d908d3ab4f5c94d9;hb=7ed1acafa0b5d135342f9dcc0eb0387dff95005a;hp=0871848ec77dade795036c459179586a3b95e74f;hpb=9f8afa72d13f221932e25bb15f01799e171d93a1;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/cp-valprint.c b/gdb/cp-valprint.c index 0871848ec7..73fe03d5c9 100644 --- a/gdb/cp-valprint.c +++ b/gdb/cp-valprint.c @@ -1,6 +1,6 @@ /* Support for printing C++ values for GDB, the GNU debugger. - Copyright (C) 1986-2013 Free Software Foundation, Inc. + Copyright (C) 1986-2017 Free Software Foundation, Inc. This file is part of GDB. @@ -27,15 +27,13 @@ #include "gdbcmd.h" #include "demangle.h" #include "annotate.h" -#include "gdb_string.h" #include "c-lang.h" #include "target.h" #include "cp-abi.h" #include "valprint.h" #include "cp-support.h" #include "language.h" -#include "python/python.h" -#include "exceptions.h" +#include "extension.h" #include "typeprint.h" /* Controls printing of vtbl's. */ @@ -82,15 +80,15 @@ static void cp_print_static_field (struct type *, struct value *, const struct value_print_options *); static void cp_print_value (struct type *, struct type *, - const gdb_byte *, int, + LONGEST, CORE_ADDR, struct ui_file *, - int, const struct value *, + int, struct value *, const struct value_print_options *, struct type **); /* GCC versions after 2.4.5 use this. */ -const char vtbl_ptr_name[] = "__vtbl_ptr_type"; +extern const char vtbl_ptr_name[] = "__vtbl_ptr_type"; /* Return truth value for assertion that TYPE is of the type "pointer to virtual function". */ @@ -98,9 +96,9 @@ const char vtbl_ptr_name[] = "__vtbl_ptr_type"; int cp_is_vtbl_ptr_type (struct type *type) { - const char *typename = type_name_no_tag (type); + const char *type_name = type_name_no_tag (type); - return (typename != NULL && !strcmp (typename, vtbl_ptr_name)); + return (type_name != NULL && !strcmp (type_name, vtbl_ptr_name)); } /* Return truth value for the assertion that TYPE is of the type @@ -156,9 +154,9 @@ cp_is_vtbl_member (struct type *type) void cp_print_value_fields (struct type *type, struct type *real_type, - const gdb_byte *valaddr, int offset, + LONGEST offset, CORE_ADDR address, struct ui_file *stream, - int recurse, const struct value *val, + int recurse, struct value *val, const struct value_print_options *options, struct type **dont_print_vb, int dont_print_statmem) @@ -167,7 +165,7 @@ cp_print_value_fields (struct type *type, struct type *real_type, int fields_seen = 0; static int last_set_recurse = -1; - CHECK_TYPEDEF (type); + type = check_typedef (type); if (recurse == 0) { @@ -196,7 +194,7 @@ cp_print_value_fields (struct type *type, struct type *real_type, duplicates of virtual baseclasses. */ if (n_baseclasses > 0) - cp_print_value (type, real_type, valaddr, + cp_print_value (type, real_type, offset, address, stream, recurse + 1, val, options, dont_print_vb); @@ -208,8 +206,8 @@ cp_print_value_fields (struct type *type, struct type *real_type, fprintf_filtered (stream, ""); else { - int statmem_obstack_initial_size = 0; - int stat_array_obstack_initial_size = 0; + size_t statmem_obstack_initial_size = 0; + size_t stat_array_obstack_initial_size = 0; struct type *vptr_basetype = NULL; int vptr_fieldno; @@ -230,6 +228,8 @@ cp_print_value_fields (struct type *type, struct type *real_type, vptr_fieldno = get_vptr_fieldno (type, &vptr_basetype); for (i = n_baseclasses; i < len; i++) { + const gdb_byte *valaddr = value_contents_for_printing (val); + /* If requested, skip printing of static fields. */ if (!options->static_field_print && field_is_static (&TYPE_FIELD (type, i))) @@ -239,7 +239,7 @@ cp_print_value_fields (struct type *type, struct type *real_type, fprintf_filtered (stream, ", "); else if (n_baseclasses > 0) { - if (options->pretty) + if (options->prettyformat) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 + 2 * recurse, stream); @@ -250,7 +250,7 @@ cp_print_value_fields (struct type *type, struct type *real_type, } fields_seen = 1; - if (options->pretty) + if (options->prettyformat) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 + 2 * recurse, stream); @@ -294,12 +294,6 @@ cp_print_value_fields (struct type *type, struct type *real_type, { fputs_filtered (_(""), stream); } - else if (!value_bits_valid (val, - TYPE_FIELD_BITPOS (type, i), - TYPE_FIELD_BITSIZE (type, i))) - { - val_print_optimized_out (stream); - } else { struct value_print_options opts = *options; @@ -321,24 +315,24 @@ cp_print_value_fields (struct type *type, struct type *real_type, } else if (field_is_static (&TYPE_FIELD (type, i))) { - volatile struct gdb_exception ex; struct value *v = NULL; - TRY_CATCH (ex, RETURN_MASK_ERROR) + TRY { v = value_static_field (type, i); } - if (ex.reason < 0) - fprintf_filtered (stream, - _(""), - ex.message); - else if (v == NULL) - val_print_optimized_out (stream); - else - cp_print_static_field (TYPE_FIELD_TYPE (type, i), - v, stream, recurse + 1, - options); + CATCH (ex, RETURN_MASK_ERROR) + { + fprintf_filtered (stream, + _(""), + ex.message); + } + END_CATCH + + cp_print_static_field (TYPE_FIELD_TYPE (type, i), + v, stream, recurse + 1, + options); } else if (i == vptr_fieldno && type == vptr_basetype) { @@ -361,7 +355,6 @@ cp_print_value_fields (struct type *type, struct type *real_type, opts.deref_ref = 0; val_print (TYPE_FIELD_TYPE (type, i), - valaddr, offset + TYPE_FIELD_BITPOS (type, i) / 8, address, stream, recurse + 1, val, &opts, @@ -373,7 +366,7 @@ cp_print_value_fields (struct type *type, struct type *real_type, if (dont_print_statmem == 0) { - int obstack_final_size = + size_t obstack_final_size = obstack_object_size (&dont_print_statmem_obstack); if (obstack_final_size > statmem_obstack_initial_size) @@ -381,7 +374,7 @@ cp_print_value_fields (struct type *type, struct type *real_type, /* In effect, a pop of the printed-statics stack. */ void *free_to_ptr = - obstack_next_free (&dont_print_statmem_obstack) - + (char *) obstack_next_free (&dont_print_statmem_obstack) - (obstack_final_size - statmem_obstack_initial_size); obstack_free (&dont_print_statmem_obstack, @@ -390,13 +383,13 @@ cp_print_value_fields (struct type *type, struct type *real_type, if (last_set_recurse != recurse) { - int obstack_final_size = + size_t obstack_final_size = obstack_object_size (&dont_print_stat_array_obstack); if (obstack_final_size > stat_array_obstack_initial_size) { void *free_to_ptr = - obstack_next_free (&dont_print_stat_array_obstack) + (char *) obstack_next_free (&dont_print_stat_array_obstack) - (obstack_final_size - stat_array_obstack_initial_size); @@ -407,7 +400,7 @@ cp_print_value_fields (struct type *type, struct type *real_type, } } - if (options->pretty) + if (options->prettyformat) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 * recurse, stream); @@ -425,10 +418,10 @@ cp_print_value_fields (struct type *type, struct type *real_type, void cp_print_value_fields_rtti (struct type *type, - const gdb_byte *valaddr, int offset, + const gdb_byte *valaddr, LONGEST offset, CORE_ADDR address, struct ui_file *stream, int recurse, - const struct value *val, + struct value *val, const struct value_print_options *options, struct type **dont_print_vb, int dont_print_statmem) @@ -437,15 +430,18 @@ cp_print_value_fields_rtti (struct type *type, /* We require all bits to be valid in order to attempt a conversion. */ - if (value_bits_valid (val, TARGET_CHAR_BIT * offset, - TARGET_CHAR_BIT * TYPE_LENGTH (type))) + if (!value_bits_any_optimized_out (val, + TARGET_CHAR_BIT * offset, + TARGET_CHAR_BIT * TYPE_LENGTH (type))) { struct value *value; - int full, top, using_enc; + int full, using_enc; + LONGEST top; /* Ugh, we have to convert back to a value here. */ value = value_from_contents_and_address (type, valaddr + offset, address + offset); + type = value_type (value); /* We don't actually care about most of the result here -- just the type. We already have the correct offset, due to how val_print was initially called. */ @@ -455,7 +451,7 @@ cp_print_value_fields_rtti (struct type *type, if (!real_type) real_type = type; - cp_print_value_fields (type, real_type, valaddr, offset, + cp_print_value_fields (type, real_type, offset, address, stream, recurse, val, options, dont_print_vb, dont_print_statmem); } @@ -465,9 +461,9 @@ cp_print_value_fields_rtti (struct type *type, static void cp_print_value (struct type *type, struct type *real_type, - const gdb_byte *valaddr, int offset, + LONGEST offset, CORE_ADDR address, struct ui_file *stream, - int recurse, const struct value *val, + int recurse, struct value *val, const struct value_print_options *options, struct type **dont_print_vb) { @@ -475,8 +471,9 @@ cp_print_value (struct type *type, struct type *real_type, = (struct type **) obstack_next_free (&dont_print_vb_obstack); struct obstack tmp_obstack = dont_print_vb_obstack; int i, n_baseclasses = TYPE_N_BASECLASSES (type); - int thisoffset; + LONGEST thisoffset; struct type *thistype; + const gdb_byte *valaddr = value_contents_for_printing (val); if (dont_print_vb == 0) { @@ -489,13 +486,11 @@ cp_print_value (struct type *type, struct type *real_type, for (i = 0; i < n_baseclasses; i++) { - int boffset = 0; - int skip; + LONGEST boffset = 0; + int skip = 0; struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); const char *basename = TYPE_NAME (baseclass); - const gdb_byte *base_valaddr = NULL; - const struct value *base_val = NULL; - volatile struct gdb_exception ex; + struct value *base_val = NULL; if (BASETYPE_VIA_VIRTUAL (type, i)) { @@ -515,18 +510,21 @@ cp_print_value (struct type *type, struct type *real_type, thisoffset = offset; thistype = real_type; - TRY_CATCH (ex, RETURN_MASK_ERROR) + TRY { boffset = baseclass_offset (type, i, valaddr, offset, address, val); } - if (ex.reason < 0 && ex.error == NOT_AVAILABLE_ERROR) - skip = -1; - else if (ex.reason < 0) - skip = 1; - else - { - skip = 0; + CATCH (ex, RETURN_MASK_ERROR) + { + if (ex.error == NOT_AVAILABLE_ERROR) + skip = -1; + else + skip = 1; + } + END_CATCH + if (skip == 0) + { if (BASETYPE_VIA_VIRTUAL (type, i)) { /* The virtual base class pointer might have been @@ -539,7 +537,7 @@ cp_print_value (struct type *type, struct type *real_type, gdb_byte *buf; struct cleanup *back_to; - buf = xmalloc (TYPE_LENGTH (baseclass)); + buf = (gdb_byte *) xmalloc (TYPE_LENGTH (baseclass)); back_to = make_cleanup (xfree, buf); if (target_read_memory (address + boffset, buf, @@ -548,27 +546,25 @@ cp_print_value (struct type *type, struct type *real_type, base_val = value_from_contents_and_address (baseclass, buf, address + boffset); + baseclass = value_type (base_val); thisoffset = 0; boffset = 0; thistype = baseclass; - base_valaddr = value_contents_for_printing_const (base_val); do_cleanups (back_to); } else { - base_valaddr = valaddr; base_val = val; } } else { - base_valaddr = valaddr; base_val = val; } } /* Now do the printing. */ - if (options->pretty) + if (options->prettyformat) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 * recurse, stream); @@ -587,19 +583,19 @@ cp_print_value (struct type *type, struct type *real_type, { int result = 0; - /* Attempt to run the Python pretty-printers on the + /* Attempt to run an extension language pretty-printer on the baseclass if possible. */ if (!options->raw) - result = apply_val_pretty_printer (baseclass, base_valaddr, - thisoffset + boffset, - value_address (base_val), - stream, recurse, base_val, - options, current_language); - + result + = apply_ext_lang_val_pretty_printer (baseclass, + thisoffset + boffset, + value_address (base_val), + stream, recurse, + base_val, options, + current_language); - if (!result) - cp_print_value_fields (baseclass, thistype, base_valaddr, + cp_print_value_fields (baseclass, thistype, thisoffset + boffset, value_address (base_val), stream, recurse, base_val, options, @@ -640,7 +636,13 @@ cp_print_static_field (struct type *type, const struct value_print_options *options) { struct value_print_options opts; - + + if (value_entirely_optimized_out (val)) + { + val_print_optimized_out (val, stream); + return; + } + if (TYPE_CODE (type) == TYPE_CODE_STRUCT) { CORE_ADDR *first_dont_print; @@ -666,9 +668,8 @@ cp_print_static_field (struct type *type, addr = value_address (val); obstack_grow (&dont_print_statmem_obstack, (char *) &addr, sizeof (CORE_ADDR)); - CHECK_TYPEDEF (type); + type = check_typedef (type); cp_print_value_fields (type, value_enclosing_type (val), - value_contents_for_printing (val), value_embedded_offset (val), addr, stream, recurse, val, options, NULL, 1); @@ -704,34 +705,33 @@ cp_print_static_field (struct type *type, opts = *options; opts.deref_ref = 0; - val_print (type, value_contents_for_printing (val), + val_print (type, value_embedded_offset (val), value_address (val), stream, recurse, val, &opts, current_language); } - -/* Find the field in *DOMAIN, or its non-virtual base classes, with - bit offset OFFSET. Set *DOMAIN to the containing type and *FIELDNO +/* Find the field in *SELF, or its non-virtual base classes, with + bit offset OFFSET. Set *SELF to the containing type and *FIELDNO to the containing field number. If OFFSET is not exactly at the - start of some field, set *DOMAIN to NULL. */ + start of some field, set *SELF to NULL. */ static void -cp_find_class_member (struct type **domain_p, int *fieldno, +cp_find_class_member (struct type **self_p, int *fieldno, LONGEST offset) { - struct type *domain; + struct type *self; unsigned int i; unsigned len; - *domain_p = check_typedef (*domain_p); - domain = *domain_p; - len = TYPE_NFIELDS (domain); + *self_p = check_typedef (*self_p); + self = *self_p; + len = TYPE_NFIELDS (self); - for (i = TYPE_N_BASECLASSES (domain); i < len; i++) + for (i = TYPE_N_BASECLASSES (self); i < len; i++) { - LONGEST bitpos = TYPE_FIELD_BITPOS (domain, i); + LONGEST bitpos = TYPE_FIELD_BITPOS (self, i); QUIT; if (offset == bitpos) @@ -741,32 +741,32 @@ cp_find_class_member (struct type **domain_p, int *fieldno, } } - for (i = 0; i < TYPE_N_BASECLASSES (domain); i++) + for (i = 0; i < TYPE_N_BASECLASSES (self); i++) { - LONGEST bitpos = TYPE_FIELD_BITPOS (domain, i); - LONGEST bitsize = 8 * TYPE_LENGTH (TYPE_FIELD_TYPE (domain, i)); + LONGEST bitpos = TYPE_FIELD_BITPOS (self, i); + LONGEST bitsize = 8 * TYPE_LENGTH (TYPE_FIELD_TYPE (self, i)); if (offset >= bitpos && offset < bitpos + bitsize) { - *domain_p = TYPE_FIELD_TYPE (domain, i); - cp_find_class_member (domain_p, fieldno, offset - bitpos); + *self_p = TYPE_FIELD_TYPE (self, i); + cp_find_class_member (self_p, fieldno, offset - bitpos); return; } } - *domain_p = NULL; + *self_p = NULL; } void cp_print_class_member (const gdb_byte *valaddr, struct type *type, - struct ui_file *stream, char *prefix) + struct ui_file *stream, const char *prefix) { enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); - /* VAL is a byte offset into the structure type DOMAIN. + /* VAL is a byte offset into the structure type SELF_TYPE. Find the name of the field for that offset and print it. */ - struct type *domain = TYPE_DOMAIN_TYPE (type); + struct type *self_type = TYPE_SELF_TYPE (type); LONGEST val; int fieldno; @@ -790,20 +790,20 @@ cp_print_class_member (const gdb_byte *valaddr, struct type *type, return; } - cp_find_class_member (&domain, &fieldno, val << 3); + cp_find_class_member (&self_type, &fieldno, val << 3); - if (domain != NULL) + if (self_type != NULL) { const char *name; fputs_filtered (prefix, stream); - name = type_name_no_tag (domain); + name = type_name_no_tag (self_type); if (name) fputs_filtered (name, stream); else - c_type_print_base (domain, stream, 0, 0, &type_print_raw_options); + c_type_print_base (self_type, stream, 0, 0, &type_print_raw_options); fprintf_filtered (stream, "::"); - fputs_filtered (TYPE_FIELD_NAME (domain, fieldno), stream); + fputs_filtered (TYPE_FIELD_NAME (self_type, fieldno), stream); } else fprintf_filtered (stream, "%ld", (long) val);