diff options
author | Michael Snyder <msnyder@vmware.com> | 2010-12-31 22:59:52 +0000 |
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committer | Michael Snyder <msnyder@vmware.com> | 2010-12-31 22:59:52 +0000 |
commit | aff410f1800950c650dc4fbaf32aff513e12cf54 (patch) | |
tree | ccbb04845548c63f54fd29d50becca48c7344a91 /gdb/cp-valprint.c | |
parent | db09a73fa458397672fa1f7b30932f904fabadd0 (diff) | |
download | gdb-aff410f1800950c650dc4fbaf32aff513e12cf54.zip gdb-aff410f1800950c650dc4fbaf32aff513e12cf54.tar.gz gdb-aff410f1800950c650dc4fbaf32aff513e12cf54.tar.bz2 |
2010-12-31 Michael Snyder <msnyder@vmware.com>
* charset.c: Comment cleanup and long line wrapping.
* charset.h: Ditto.
* c-lang.c: Ditto.
* c-lang.h: Ditto.
* coff-pe-read.c: Ditto.
* coff-pe-read.h: Ditto.
* coffread.c: Ditto.
* command.h: Ditto.
* complaints.c: Ditto.
* complaints.h: Ditto.
* completer.c: Ditto.
* completer.h: Ditto.
* corefile.c: Ditto.
* corelow.c: Ditto.
* core-regset.c: Ditto.
* cp-abi.c: Ditto.
* cp-abi.h: Ditto.
* cp-namespace.c: Ditto.
* cp-support.c: Ditto.
* cp-support.h: Ditto.
* cp-valprint.c: Ditto.
* cp-typeprint.c: Ditto.
* c-valprint.c: Ditto.
Diffstat (limited to 'gdb/cp-valprint.c')
-rw-r--r-- | gdb/cp-valprint.c | 215 |
1 files changed, 122 insertions, 93 deletions
diff --git a/gdb/cp-valprint.c b/gdb/cp-valprint.c index e65c12b..a55255f 100644 --- a/gdb/cp-valprint.c +++ b/gdb/cp-valprint.c @@ -38,7 +38,7 @@ #include "language.h" #include "python/python.h" -/* Controls printing of vtbl's */ +/* Controls printing of vtbl's. */ static void show_vtblprint (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value) @@ -62,9 +62,11 @@ Printing of object's derived type based on vtable info is %s.\n"), static void show_static_field_print (struct ui_file *file, int from_tty, - struct cmd_list_element *c, const char *value) + struct cmd_list_element *c, + const char *value) { - fprintf_filtered (file, _("Printing of C++ static members is %s.\n"), + fprintf_filtered (file, + _("Printing of C++ static members is %s.\n"), value); } @@ -79,10 +81,12 @@ static void cp_print_static_field (struct type *, struct value *, struct ui_file *, int, const struct value_print_options *); -static void cp_print_value (struct type *, struct type *, const gdb_byte *, - int, CORE_ADDR, struct ui_file *, int, - const struct value *, - const struct value_print_options *, struct type **); +static void cp_print_value (struct type *, struct type *, + const gdb_byte *, int, + CORE_ADDR, struct ui_file *, + int, const struct value *, + const struct value_print_options *, + struct type **); /* GCC versions after 2.4.5 use this. */ @@ -105,19 +109,19 @@ cp_is_vtbl_ptr_type (struct type *type) int cp_is_vtbl_member (struct type *type) { - /* With older versions of g++, the vtbl field pointed to an array - of structures. Nowadays it points directly to the structure. */ + /* With older versions of g++, the vtbl field pointed to an array of + structures. Nowadays it points directly to the structure. */ if (TYPE_CODE (type) == TYPE_CODE_PTR) { type = TYPE_TARGET_TYPE (type); if (TYPE_CODE (type) == TYPE_CODE_ARRAY) { type = TYPE_TARGET_TYPE (type); - if (TYPE_CODE (type) == TYPE_CODE_STRUCT /* if not using thunks */ - || TYPE_CODE (type) == TYPE_CODE_PTR) /* if using thunks */ + if (TYPE_CODE (type) == TYPE_CODE_STRUCT /* if not using thunks */ + || TYPE_CODE (type) == TYPE_CODE_PTR) /* if using thunks */ { /* Virtual functions tables are full of pointers - to virtual functions. */ + to virtual functions. */ return cp_is_vtbl_ptr_type (type); } } @@ -127,9 +131,10 @@ cp_is_vtbl_member (struct type *type) } else if (TYPE_CODE (type) == TYPE_CODE_PTR) /* if using thunks */ { - /* The type name of the thunk pointer is NULL when using dwarf2. - We could test for a pointer to a function, but there is - no type info for the virtual table either, so it wont help. */ + /* The type name of the thunk pointer is NULL when using + dwarf2. We could test for a pointer to a function, but + there is no type info for the virtual table either, so it + wont help. */ return cp_is_vtbl_ptr_type (type); } } @@ -137,24 +142,26 @@ cp_is_vtbl_member (struct type *type) } /* Mutually recursive subroutines of cp_print_value and c_val_print to - print out a structure's fields: cp_print_value_fields and cp_print_value. + print out a structure's fields: cp_print_value_fields and + cp_print_value. - TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and OPTIONS have the - same meanings as in cp_print_value and c_val_print. + TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and OPTIONS have the same + meanings as in cp_print_value and c_val_print. - 2nd argument REAL_TYPE is used to carry over the type of the derived - class across the recursion to base classes. + 2nd argument REAL_TYPE is used to carry over the type of the + derived class across the recursion to base classes. - DONT_PRINT is an array of baseclass types that we - should not print, or zero if called from top level. */ + DONT_PRINT is an array of baseclass types that we should not print, + or zero if called from top level. */ void cp_print_value_fields (struct type *type, struct type *real_type, - const gdb_byte *valaddr, int offset, CORE_ADDR address, - struct ui_file *stream, int recurse, - const struct value *val, + const gdb_byte *valaddr, int offset, + CORE_ADDR address, struct ui_file *stream, + int recurse, const struct value *val, const struct value_print_options *options, - struct type **dont_print_vb, int dont_print_statmem) + struct type **dont_print_vb, + int dont_print_statmem) { int i, len, n_baseclasses; int fields_seen = 0; @@ -164,12 +171,14 @@ cp_print_value_fields (struct type *type, struct type *real_type, if (recurse == 0) { - /* Any object can be left on obstacks only during an unexpected error. */ + /* Any object can be left on obstacks only during an unexpected + error. */ if (obstack_object_size (&dont_print_statmem_obstack) > 0) { obstack_free (&dont_print_statmem_obstack, NULL); - obstack_begin (&dont_print_statmem_obstack, 32 * sizeof (CORE_ADDR)); + obstack_begin (&dont_print_statmem_obstack, + 32 * sizeof (CORE_ADDR)); } if (obstack_object_size (&dont_print_stat_array_obstack) > 0) { @@ -187,8 +196,10 @@ 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, offset, address, stream, - recurse + 1, val, options, dont_print_vb); + cp_print_value (type, real_type, valaddr, + offset, address, stream, + recurse + 1, val, options, + dont_print_vb); /* Second, print out data fields */ @@ -253,11 +264,13 @@ cp_print_value_fields (struct type *type, struct type *real_type, fputs_filtered ("\"( nodef \"", stream); if (field_is_static (&TYPE_FIELD (type, i))) fputs_filtered ("static ", stream); - fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), + fprintf_symbol_filtered (stream, + TYPE_FIELD_NAME (type, i), current_language->la_language, DMGL_PARAMS | DMGL_ANSI); fputs_filtered ("\" \"", stream); - fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), + fprintf_symbol_filtered (stream, + TYPE_FIELD_NAME (type, i), current_language->la_language, DMGL_PARAMS | DMGL_ANSI); fputs_filtered ("\") \"", stream); @@ -268,11 +281,13 @@ cp_print_value_fields (struct type *type, struct type *real_type, if (field_is_static (&TYPE_FIELD (type, i))) fputs_filtered ("static ", stream); - fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), + fprintf_symbol_filtered (stream, + TYPE_FIELD_NAME (type, i), current_language->la_language, DMGL_PARAMS | DMGL_ANSI); annotate_field_name_end (); - /* do not print leading '=' in case of anonymous unions */ + /* Do not print leading '=' in case of anonymous + unions. */ if (strcmp (TYPE_FIELD_NAME (type, i), "")) fputs_filtered (" = ", stream); annotate_field_value (); @@ -283,8 +298,8 @@ cp_print_value_fields (struct type *type, struct type *real_type, { struct value *v; - /* Bitfields require special handling, especially due to byte - order problems. */ + /* Bitfields require special handling, especially due to + byte order problems. */ if (TYPE_FIELD_IGNORE (type, i)) { fputs_filtered ("<optimized out or zero length>", stream); @@ -297,7 +312,8 @@ cp_print_value_fields (struct type *type, struct type *real_type, { fputs_filtered (_("<synthetic pointer>"), stream); } - else if (!value_bits_valid (val, TYPE_FIELD_BITPOS (type, i), + else if (!value_bits_valid (val, + TYPE_FIELD_BITPOS (type, i), TYPE_FIELD_BITSIZE (type, i))) { fputs_filtered (_("<value optimized out>"), stream); @@ -319,7 +335,8 @@ cp_print_value_fields (struct type *type, struct type *real_type, { if (TYPE_FIELD_IGNORE (type, i)) { - fputs_filtered ("<optimized out or zero length>", stream); + fputs_filtered ("<optimized out or zero length>", + stream); } else if (field_is_static (&TYPE_FIELD (type, i))) { @@ -328,8 +345,9 @@ cp_print_value_fields (struct type *type, struct type *real_type, if (v == NULL) fputs_filtered ("<optimized out>", stream); else - cp_print_static_field (TYPE_FIELD_TYPE (type, i), v, - stream, recurse + 1, options); + cp_print_static_field (TYPE_FIELD_TYPE (type, i), + v, stream, recurse + 1, + options); } else { @@ -337,7 +355,8 @@ 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, + valaddr, + offset + TYPE_FIELD_BITPOS (type, i) / 8, address, stream, recurse + 1, val, &opts, current_language); @@ -351,16 +370,17 @@ cp_print_value_fields (struct type *type, struct type *real_type, int obstack_final_size = obstack_object_size (&dont_print_statmem_obstack); - if (obstack_final_size > statmem_obstack_initial_size) { - /* In effect, a pop of the printed-statics stack. */ + if (obstack_final_size > statmem_obstack_initial_size) + { + /* In effect, a pop of the printed-statics stack. */ - void *free_to_ptr = - obstack_next_free (&dont_print_statmem_obstack) - - (obstack_final_size - statmem_obstack_initial_size); + void *free_to_ptr = + obstack_next_free (&dont_print_statmem_obstack) - + (obstack_final_size - statmem_obstack_initial_size); - obstack_free (&dont_print_statmem_obstack, - free_to_ptr); - } + obstack_free (&dont_print_statmem_obstack, + free_to_ptr); + } if (last_set_recurse != recurse) { @@ -370,8 +390,9 @@ cp_print_value_fields (struct type *type, struct type *real_type, if (obstack_final_size > stat_array_obstack_initial_size) { void *free_to_ptr = - obstack_next_free (&dont_print_stat_array_obstack) - - (obstack_final_size - stat_array_obstack_initial_size); + obstack_next_free (&dont_print_stat_array_obstack) + - (obstack_final_size + - stat_array_obstack_initial_size); obstack_free (&dont_print_stat_array_obstack, free_to_ptr); @@ -419,9 +440,9 @@ cp_print_value_fields_rtti (struct type *type, /* Ugh, we have to convert back to a value here. */ value = value_from_contents_and_address (type, valaddr + offset, address + offset); - /* 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. */ + /* 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. */ real_type = value_rtti_type (value, &full, &top, &using_enc); } @@ -433,14 +454,14 @@ cp_print_value_fields_rtti (struct type *type, dont_print_vb, dont_print_statmem); } -/* Special val_print routine to avoid printing multiple copies of virtual - baseclasses. */ +/* Special val_print routine to avoid printing multiple copies of + virtual baseclasses. */ static void cp_print_value (struct type *type, struct type *real_type, - const gdb_byte *valaddr, int offset, CORE_ADDR address, - struct ui_file *stream, int recurse, - const struct value *val, + const gdb_byte *valaddr, int offset, + CORE_ADDR address, struct ui_file *stream, + int recurse, const struct value *val, const struct value_print_options *options, struct type **dont_print_vb) { @@ -453,9 +474,9 @@ cp_print_value (struct type *type, struct type *real_type, if (dont_print_vb == 0) { - /* If we're at top level, carve out a completely fresh - chunk of the obstack and use that until this particular - invocation returns. */ + /* If we're at top level, carve out a completely fresh chunk of + the obstack and use that until this particular invocation + returns. */ /* Bump up the high-water mark. Now alpha is omega. */ obstack_finish (&dont_print_vb_obstack); } @@ -473,8 +494,8 @@ cp_print_value (struct type *type, struct type *real_type, struct type **first_dont_print = (struct type **) obstack_base (&dont_print_vb_obstack); - int j = (struct type **) obstack_next_free (&dont_print_vb_obstack) - - first_dont_print; + int j = (struct type **) + obstack_next_free (&dont_print_vb_obstack) - first_dont_print; while (--j >= 0) if (baseclass == first_dont_print[j]) @@ -486,20 +507,22 @@ cp_print_value (struct type *type, struct type *real_type, thisoffset = offset; thistype = real_type; - boffset = baseclass_offset (type, i, valaddr + offset, address + offset); + boffset = baseclass_offset (type, i, valaddr + offset, + address + offset); skip = ((boffset == -1) || (boffset + offset) < 0) ? 1 : -1; if (BASETYPE_VIA_VIRTUAL (type, i)) { - /* The virtual base class pointer might have been - clobbered by the user program. Make sure that it - still points to a valid memory location. */ + /* The virtual base class pointer might have been clobbered + by the user program. Make sure that it still points to a + valid memory location. */ if (boffset != -1 && ((boffset + offset) < 0 || (boffset + offset) >= TYPE_LENGTH (real_type))) { - /* FIXME (alloca): unsafe if baseclass is really really large. */ + /* FIXME (alloca): unsafe if baseclass is really really + large. */ gdb_byte *buf = alloca (TYPE_LENGTH (baseclass)); base_valaddr = buf; @@ -517,15 +540,15 @@ cp_print_value (struct type *type, struct type *real_type, else base_valaddr = valaddr; - /* now do the printing */ + /* Now do the printing. */ if (options->pretty) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 * recurse, stream); } fputs_filtered ("<", stream); - /* Not sure what the best notation is in the case where there is no - baseclass name. */ + /* Not sure what the best notation is in the case where there is + no baseclass name. */ fputs_filtered (basename ? basename : "", stream); fputs_filtered ("> = ", stream); @@ -542,8 +565,8 @@ cp_print_value (struct type *type, struct type *real_type, result = apply_val_pretty_printer (baseclass, base_valaddr, thisoffset + boffset, address, - stream, recurse, val, - options, + stream, recurse, + val, options, current_language); if (!result) @@ -571,11 +594,10 @@ cp_print_value (struct type *type, struct type *real_type, } } -/* Print value of a static member. - To avoid infinite recursion when printing a class that contains - a static instance of the class, we keep the addresses of all printed - static member classes in an obstack and refuse to print them more - than once. +/* Print value of a static member. To avoid infinite recursion when + printing a class that contains a static instance of the class, we + keep the addresses of all printed static member classes in an + obstack and refuse to print them more than once. VAL contains the value to print, TYPE, STREAM, RECURSE, and OPTIONS have the same meanings as in c_val_print. */ @@ -618,8 +640,8 @@ cp_print_static_field (struct type *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); + stream, recurse, val, + options, NULL, 1); return; } @@ -645,23 +667,25 @@ cp_print_static_field (struct type *type, } } - obstack_grow (&dont_print_stat_array_obstack, (char *) &target_type, + obstack_grow (&dont_print_stat_array_obstack, + (char *) &target_type, sizeof (struct type *)); } opts = *options; opts.deref_ref = 0; val_print (type, value_contents_for_printing (val), - value_embedded_offset (val), value_address (val), - stream, recurse, - val, &opts, current_language); + 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 to the containing - field number. If OFFSET is not exactly at the start of some field, set - *DOMAIN to NULL. */ +/* Find the field in *DOMAIN, or its non-virtual base classes, with + bit offset OFFSET. Set *DOMAIN 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. */ static void cp_find_class_member (struct type **domain_p, int *fieldno, @@ -716,7 +740,9 @@ cp_print_class_member (const gdb_byte *valaddr, struct type *type, LONGEST val; unsigned int fieldno; - val = extract_signed_integer (valaddr, TYPE_LENGTH (type), byte_order); + val = extract_signed_integer (valaddr, + TYPE_LENGTH (type), + byte_order); /* Pointers to data members are usually byte offsets into an object. Because a data member can have offset zero, and a NULL pointer to @@ -781,7 +807,10 @@ Show printing of object's derived type based on vtable info."), NULL, show_objectprint, &setprintlist, &showprintlist); - obstack_begin (&dont_print_stat_array_obstack, 32 * sizeof (struct type *)); - obstack_begin (&dont_print_statmem_obstack, 32 * sizeof (CORE_ADDR)); - obstack_begin (&dont_print_vb_obstack, 32 * sizeof (struct type *)); + obstack_begin (&dont_print_stat_array_obstack, + 32 * sizeof (struct type *)); + obstack_begin (&dont_print_statmem_obstack, + 32 * sizeof (CORE_ADDR)); + obstack_begin (&dont_print_vb_obstack, + 32 * sizeof (struct type *)); } |