984 lines
26 KiB
C
984 lines
26 KiB
C
/* Definitions and structures for reading debug symbols from the
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native HP C compiler.
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Written by the Center for Software Science at the University of Utah
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and by Cygnus Support.
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Copyright 1994 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef HP_SYMTAB_INCLUDED
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#define HP_SYMTAB_INCLUDED
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/* General information:
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This header file defines and describes only the basic data structures
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necessary to read debug symbols produced by the HP C compiler using the
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SOM object file format. Definitions and structures used by other compilers
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for other languages or object file formats may be missing.
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(For a full description of the debug format, ftp hpux-symtab.h from
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jaguar.cs.utah.edu:/dist).
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Debug symbols are contained entirely within an unloadable space called
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$DEBUG$. $DEBUG$ contains several subspaces which group related
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debug symbols.
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$GNTT$ contains information for global variables, types and contants.
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$LNTT$ contains information for procedures (including nesting), scoping
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information, local variables, types, and constants.
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$SLT$ contains source line information so that code addresses may be
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mapped to source lines.
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$VT$ contains various strings and constants for named objects (variables,
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typedefs, functions, etc). Strings are stored as null-terminated character
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lists. Constants always begin on word boundaries. The first byte of
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the VT must be zero (a null string).
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$XT$ is not currently used by GDB.
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Many structures within the subspaces point to other structures within
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the same subspace, or to structures within a different subspace. These
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pointers are represented as a structure index from the beginning of
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the appropriate subspace. */
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/* Used to describe where a constant is stored. */
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enum location_type
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{
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LOCATION_IMMEDIATE,
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LOCATION_PTR,
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LOCATION_VT,
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};
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/* Languages supported by this debug format. Within the data structures
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this type is limited to 4 bits for a maximum of 16 languages. */
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enum hp_language
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{
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HP_LANGUAGE_UNKNOWN,
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HP_LANGUAGE_C,
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HP_LANGUAGE_F77,
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HP_LANGUAGE_PASCAL,
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HP_LANGUAGE_COBOL,
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HP_LANGUAGE_BASIC,
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HP_LANGUAGE_ADA,
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HP_LANGUAGE_CPLUSPLUS,
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};
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/* Basic data types available in this debug format. Within the data
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structures this type is limited to 5 bits for a maximum of 32 basic
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data types. */
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enum hp_type
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{
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HP_TYPE_UNDEFINED,
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HP_TYPE_BOOLEAN,
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HP_TYPE_CHAR,
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HP_TYPE_INT,
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HP_TYPE_UNSIGNED_INT,
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HP_TYPE_REAL,
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HP_TYPE_COMPLEX,
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HP_TYPE_STRING200,
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HP_TYPE_LONGSTRING200,
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HP_TYPE_TEXT,
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HP_TYPE_FLABEL,
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HP_TYPE_FTN_STRING_SPEC,
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HP_TYPE_MOD_STRING_SPEC,
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HP_TYPE_PACKED_DECIMAL,
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HP_TYPE_REAL_3000,
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HP_TYPE_MOD_STRING_3000,
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HP_TYPE_ANYPOINTER,
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HP_TYPE_GLOBAL_ANYPOINTER,
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HP_TYPE_LOCAL_ANYPOINTER,
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HP_TYPE_COMPLEXS3000,
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HP_TYPE_FTN_STRING_S300_COMPAT,
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HP_TYPE_FTN_STRING_VAX_COMPAT,
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HP_TYPE_BOOLEAN_S300_COMPAT,
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HP_TYPE_BOOLEAN_VAX_COMPAT,
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HP_TYPE_WIDE_CHAR,
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HP_TYPE_LONG,
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HP_TYPE_UNSIGNED_LONG,
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HP_TYPE_DOUBLE,
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HP_TYPE_TEMPLATE_ARG,
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};
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/* An immediate name and type table entry.
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extension and immediate will always be one.
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global will always be zero.
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hp_type is the basic type this entry describes.
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bitlength is the length in bits for the basic type. */
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struct dnttp_immediate
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{
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unsigned int extension: 1;
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unsigned int immediate: 1;
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unsigned int global: 1;
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enum hp_type type: 5;
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unsigned int bitlength: 24;
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};
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/* A nonimmediate name and type table entry.
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extension will always be one.
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immediate will always be zero.
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if global is zero, this entry points into the LNTT
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if global is one, this entry points into the GNTT
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index is the index within the GNTT or LNTT for this entry. */
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struct dnttp_nonimmediate
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{
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unsigned int extension: 1;
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unsigned int immediate: 1;
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unsigned int global: 1;
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unsigned int index: 29;
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};
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/* A pointer to an entry in the GNTT and LNTT tables. It has two
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forms depending on the type being described.
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The immediate form is used for simple entries and is one
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word.
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The nonimmediate form is used for complex entries and contains
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an index into the LNTT or GNTT which describes the entire type.
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If a dnttpointer is -1, then it is a NIL entry. */
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#define DNTTNIL (-1)
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typedef union dnttpointer
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{
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struct dnttp_immediate dntti;
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struct dnttp_nonimmediate dnttp;
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int word;
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} dnttpointer;
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/* An index into the source line table. As with dnttpointers, a sltpointer
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of -1 indicates a NIL entry. */
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#define SLTNIL (-1)
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typedef int sltpointer;
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/* Unsigned byte offset into the VT. */
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typedef unsigned int vtpointer;
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/* A DNTT entry (used within the GNTT and LNTT).
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DNTT entries are variable sized objects, but are always a multiple
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of 3 words (we call each group of 3 words a "block").
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The first bit in each block is an extension bit. This bit is zero
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for the first block of a DNTT entry. If the entry requires more
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than one block, then this bit is set to one in all blocks after
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the first one. */
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/* Each DNTT entry describes a particular debug symbol (beginning of
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a source file, a function, variables, structures, etc.
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The type of the DNTT entry is stored in the "kind" field within the
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DNTT entry itself. */
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enum dntt_entry_type
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{
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DNTT_TYPE_NIL = -1,
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DNTT_TYPE_SRCFILE,
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DNTT_TYPE_MODULE,
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DNTT_TYPE_FUNCTION,
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DNTT_TYPE_ENTRY,
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DNTT_TYPE_BEGIN,
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DNTT_TYPE_END,
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DNTT_TYPE_IMPORT,
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DNTT_TYPE_LABEL,
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DNTT_TYPE_FPARAM,
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DNTT_TYPE_SVAR,
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DNTT_TYPE_DVAR,
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DNTT_TYPE_HOLE1,
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DNTT_TYPE_CONST,
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DNTT_TYPE_TYPEDEF,
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DNTT_TYPE_TAGDEF,
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DNTT_TYPE_POINTER,
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DNTT_TYPE_ENUM,
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DNTT_TYPE_MEMENUM,
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DNTT_TYPE_SET,
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DNTT_TYPE_SUBRANGE,
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DNTT_TYPE_ARRAY,
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DNTT_TYPE_STRUCT,
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DNTT_TYPE_UNION,
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DNTT_TYPE_FIELD,
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DNTT_TYPE_VARIANT,
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DNTT_TYPE_FILE,
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DNTT_TYPE_FUNCTYPE,
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DNTT_TYPE_WITH,
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DNTT_TYPE_COMMON,
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DNTT_TYPE_COBSTRUCT,
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DNTT_TYPE_XREF,
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DNTT_TYPE_SA,
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DNTT_TYPE_MACRO,
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DNTT_TYPE_BLOCKDATA,
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DNTT_TYPE_CLASS_SCOPE,
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DNTT_TYPE_REFERENCE,
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DNTT_TYPE_PTRMEM,
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DNTT_TYPE_PTRMEMFUNC,
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DNTT_TYPE_CLASS,
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DNTT_TYPE_GENFIELD,
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DNTT_TYPE_VFUNC,
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DNTT_TYPE_MEMACCESS,
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DNTT_TYPE_INHERITANCE,
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DNTT_TYPE_FRIEND_CLASS,
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DNTT_TYPE_FRIEND_FUNC,
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DNTT_TYPE_MODIFIER,
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DNTT_TYPE_OBJECT_ID,
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DNTT_TYPE_MEMFUNC,
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DNTT_TYPE_TEMPLATE,
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DNTT_TYPE_TEMPLATE_ARG,
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DNTT_TYPE_FUNC_TEMPLATE,
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DNTT_TYPE_LINK,
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DNTT_TYPE_MAX,
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};
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/* DNTT_TYPE_SRCFILE:
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One DNTT_TYPE_SRCFILE symbol is output for the start of each source
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file and at the begin and end of an included file. A DNTT_TYPE_SRCFILE
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entry is also output before each DNTT_TYPE_FUNC symbol so that debuggers
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can determine what file a function was defined in.
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LANGUAGE describes the source file's language.
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NAME points to an VT entry providing the source file's name.
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Note the name used for DNTT_TYPE_SRCFILE entries are exactly as seen
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by the compiler (ie they may be relative or absolute). C include files
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via <> inclusion must use absolute paths.
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ADDRESS points to an SLT entry from which line number and code locations
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may be determined. */
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struct dntt_type_srcfile
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{
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unsigned int extension: 1;
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enum dntt_entry_type kind: 10;
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enum hp_language language: 4;
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unsigned int unused: 17;
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vtpointer name;
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sltpointer address;
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};
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/* DNTT_TYPE_MODULE:
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A DNTT_TYPE_MODULE symbol is emitted for the start of a pascal
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module or C source file.
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Each DNTT_TYPE_MODULE must have an associated DNTT_TYPE_END symbol.
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NAME points to a VT entry providing the module's name. Note C
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source files are considered nameless modules.
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ALIAS point to a VT entry providing a secondary name.
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ADDRESS points to an SLT entry from which line number and code locations
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may be determined. */
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struct dntt_type_module
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{
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unsigned int extension: 1;
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enum dntt_entry_type kind: 10;
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unsigned int unused: 21;
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vtpointer name;
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vtpointer alias;
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dnttpointer unused2;
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sltpointer address;
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};
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/* DNTT_TYPE_FUNCTION:
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A DNTT_TYPE_FUNCTION symbol is emitted for each function definition;
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a DNTT_TYPE_ENTRY symbols is used for secondary entry points. Both
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symbols used the dntt_type_function structure.
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Each DNTT_TYPE_FUNCTION must have a matching DNTT_TYPE_END.
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GLOBAL is nonzero if the function has global scope.
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LANGUAGE describes the function's source language.
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OPT_LEVEL describes the optimization level the function was compiled
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with.
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VARARGS is nonzero if the function uses varargs.
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NAME points to a VT entry providing the function's name.
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ALIAS points to a VT entry providing a secondary name for the function.
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FIRSTPARAM points to a LNTT entry which describes the parameter list.
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ADDRESS points to an SLT entry from which line number and code locations
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may be determined.
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ENTRYADDR is the memory address corresponding the the function's entry point
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RETVAL points to a LNTT entry describing the function's return value.
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LOWADDR is the lowest memory address associated with this function.
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HIADDR is the highest memory address associated with this function. */
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struct dntt_type_function
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{
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unsigned int extension: 1;
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enum dntt_entry_type kind: 10;
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unsigned int global: 1;
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enum hp_language language: 4;
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unsigned int nest_level: 5;
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unsigned int opt_level: 2;
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unsigned int varargs: 1;
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unsigned int lang_info: 4;
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unsigned int inlined: 1;
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unsigned int localalloc: 1;
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unsigned int expansion: 1;
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unsigned int unused: 1;
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vtpointer name;
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vtpointer alias;
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dnttpointer firstparam;
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sltpointer address;
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CORE_ADDR entryaddr;
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dnttpointer retval;
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CORE_ADDR lowaddr;
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CORE_ADDR hiaddr;
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};
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/* DNTT_TYPE_BEGIN:
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A DNTT_TYPE_BEGIN symbol is emitted to begin a new nested scope.
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Every DNTT_TYPE_BEGIN symbol must have a matching DNTT_TYPE_END symbol.
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CLASSFLAG is nonzero if this is the beginning of a c++ class definition.
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ADDRESS points to an SLT entry from which line number and code locations
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may be determined. */
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struct dntt_type_begin
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{
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unsigned int extension: 1;
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enum dntt_entry_type kind: 10;
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unsigned int classflag: 1;
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unsigned int unused: 20;
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sltpointer address;
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};
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/* DNTT_TYPE_END:
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A DNTT_TYPE_END symbol is emitted when closing a scope started by
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a DNTT_TYPE_MODULE, DNTT_TYPE_FUNCTION, and DNTT_TYPE_BEGIN symbols.
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ENDKIND describes what type of scope the DNTT_TYPE_END is closing
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(DNTT_TYPE_MODULE, DNTT_TYPE_BEGIN, etc).
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CLASSFLAG is nonzero if this is the end of a c++ class definition.
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ADDRESS points to an SLT entry from which line number and code locations
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may be determined.
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BEGINSCOPE points to the LNTT entry which opened the scope. */
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struct dntt_type_end
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{
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unsigned int extension: 1;
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enum dntt_entry_type kind: 10;
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enum dntt_entry_type endkind: 10;
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unsigned int classflag: 1;
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unsigned int unused: 10;
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sltpointer address;
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dnttpointer beginscope;
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};
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/* DNTT_TYPE_IMPORT is unused by GDB. */
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/* DNTT_TYPE_LABEL is unused by GDB. */
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/* DNTT_TYPE_FPARAM:
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A DNTT_TYPE_FPARAM symbol is emitted for a function argument. When
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chained together the symbols represent an argument list for a function.
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REGPARAM is nonzero if this parameter was passed in a register.
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INDIRECT is nonzero if this parameter is a pointer to the parameter
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(pass by reference or pass by value for large items).
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LONGADDR is nonzero if the parameter is a 64bit pointer.
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NAME is a pointer into the VT for the parameter's name.
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LOCATION describes where the parameter is stored. Depending on the
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parameter type LOCATION could be a register number, or an offset
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from the stack pointer.
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TYPE points to a NTT entry describing the type of this parameter.
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NEXTPARAM points to the LNTT entry describing the next parameter. */
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struct dntt_type_fparam
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{
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unsigned int extension: 1;
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enum dntt_entry_type kind: 10;
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unsigned int regparam: 1;
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unsigned int indirect: 1;
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unsigned int longaddr: 1;
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unsigned int copyparam: 1;
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unsigned int dflt: 1;
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unsigned int unused: 16;
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vtpointer name;
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int location;
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dnttpointer type;
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dnttpointer nextparam;
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int misc;
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};
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/* DNTT_TYPE_SVAR:
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A DNTT_TYPE_SVAR is emitted to describe a variable in static storage.
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GLOBAL is nonzero if the variable has global scope.
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INDIRECT is nonzero if the variable is a pointer to an object.
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LONGADDR is nonzero if the variable is in long pointer space.
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STATICMEM is nonzero if the variable is a member of a class.
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A_UNION is nonzero if the variable is an anonymous union member.
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NAME is a pointer into the VT for the variable's name.
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LOCATION provides the memory address for the variable.
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TYPE is a pointer into either the GNTT or LNTT which describes
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the type of this variable. */
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struct dntt_type_svar
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{
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unsigned int extension: 1;
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enum dntt_entry_type kind: 10;
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unsigned int global: 1;
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unsigned int indirect: 1;
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unsigned int longaddr: 1;
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unsigned int staticmem: 1;
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unsigned int a_union: 1;
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unsigned int unused: 16;
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vtpointer name;
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CORE_ADDR location;
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dnttpointer type;
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unsigned int offset;
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unsigned int displacement;
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};
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|
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/* DNTT_TYPE_DVAR:
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A DNTT_TYPE_DVAR is emitted to describe automatic variables and variables
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held in registers.
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GLOBAL is nonzero if the variable has global scope.
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INDIRECT is nonzero if the variable is a pointer to an object.
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REGVAR is nonzero if the variable is in a register.
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A_UNION is nonzero if the variable is an anonymous union member.
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NAME is a pointer into the VT for the variable's name.
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LOCATION provides the memory address or register number for the variable.
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TYPE is a pointer into either the GNTT or LNTT which describes
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|
the type of this variable. */
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|
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struct dntt_type_dvar
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|
{
|
|
unsigned int extension: 1;
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enum dntt_entry_type kind: 10;
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unsigned int global: 1;
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|
unsigned int indirect: 1;
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|
unsigned int regvar: 1;
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|
unsigned int a_union: 1;
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|
unsigned int unused: 17;
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|
vtpointer name;
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int location;
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dnttpointer type;
|
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unsigned int offset;
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};
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|
|
/* DNTT_TYPE_CONST:
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|
A DNTT_TYPE_CONST symbol is emitted for program constants.
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GLOBAL is nonzero if the constant has global scope.
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INDIRECT is nonzero if the constant is a pointer to an object.
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LOCATION_TYPE describes where to find the constant's value
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(in the VT, memory, or embedded in an instruction).
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CLASSMEM is nonzero if the constant is a member of a class.
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NAME is a pointer into the VT for the constant's name.
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LOCATION provides the memory address, register number or pointer
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|
into the VT for the constant's value.
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|
TYPE is a pointer into either the GNTT or LNTT which describes
|
|
the type of this variable. */
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|
|
struct dntt_type_const
|
|
{
|
|
unsigned int extension: 1;
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|
enum dntt_entry_type kind: 10;
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|
unsigned int global: 1;
|
|
unsigned int indirect: 1;
|
|
enum location_type: 3;
|
|
unsigned int classmem: 1;
|
|
unsigned int unused: 15;
|
|
vtpointer name;
|
|
CORE_ADDR location;
|
|
dnttpointer type;
|
|
unsigned int offset;
|
|
unsigned int displacement;
|
|
};
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|
|
/* DNTT_TYPE_TYPEDEF and DNTT_TYPE_TAGDEF:
|
|
|
|
The same structure is used to describe typedefs and tagdefs.
|
|
|
|
DNTT_TYPE_TYPEDEFS are associated with C "typedefs".
|
|
|
|
DNTT_TYPE_TAGDEFs are associated with C "struct", "union", and "enum"
|
|
tags, which may have the same name as a typedef in the same scope.
|
|
|
|
GLOBAL is nonzero if the typedef/tagdef has global scope.
|
|
|
|
TYPEINFO is used to determine if full type information is available
|
|
for a tag. (usually 1, but can be zero for opaque types in C).
|
|
|
|
NAME is a pointer into the VT for the constant's name.
|
|
|
|
TYPE points to the underlying type for the typedef/tagdef in the
|
|
GNTT or LNTT. */
|
|
|
|
struct dntt_type_type
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int global: 1;
|
|
unsigned int typeinfo: 1;
|
|
unsigned int unused: 19;
|
|
vtpointer name;
|
|
dnttpointer type;
|
|
};
|
|
|
|
/* DNTT_TYPE_POINTER:
|
|
|
|
Used to describe a pointer to an underlying type.
|
|
|
|
POINTSTO is a pointer into the GNTT or LNTT for the type which this
|
|
pointer points to.
|
|
|
|
BITLENGTH is the length of the pointer (not the underlying type). */
|
|
|
|
struct dntt_type_pointer
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int unused: 21;
|
|
dnttpointer pointsto;
|
|
unsigned int bitlength;
|
|
};
|
|
|
|
|
|
/* DNTT_TYPE_ENUM:
|
|
|
|
Used to describe enumerated types.
|
|
|
|
FIRSTMEM is a pointer to a DNTT_TYPE_MEMENUM in the GNTT/LNTT which
|
|
describes the first member (and contains a pointer to the chain of
|
|
members).
|
|
|
|
BITLENGTH is the number of bits used to hold the values of the enum's
|
|
members. */
|
|
|
|
struct dntt_type_enum
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int unused: 21;
|
|
dnttpointer firstmem;
|
|
unsigned int bitlength;
|
|
};
|
|
|
|
/* DNTT_TYPE_MEMENUM
|
|
|
|
Used to describe members of an enumerated type.
|
|
|
|
CLASSMEM is nonzero if this member is part of a class.
|
|
|
|
NAME points into the VT for the name of this member.
|
|
|
|
VALUE is the value of this enumeration member.
|
|
|
|
NEXTMEM points to the next DNTT_TYPE_MEMENUM in the chain. */
|
|
|
|
struct dntt_type_memenum
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int classmem: 1;
|
|
unsigned int unused: 20;
|
|
vtpointer name;
|
|
unsigned int value;
|
|
dnttpointer nextmem;
|
|
};
|
|
|
|
/* DNTT_TYPE_SET
|
|
|
|
DECLARATION describes the bitpacking of the set.
|
|
|
|
SUBTYPE points to a DNTT entry describing the type of the members.
|
|
|
|
BITLENGTH is the size of the set. */
|
|
|
|
struct dntt_type_set
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int declaration: 2;
|
|
unsigned int unused: 19;
|
|
dnttpointer subtype;
|
|
unsigned int bitlength;
|
|
};
|
|
|
|
/* DNTT_TYPE_SUBRANGE
|
|
|
|
DYN_LOW describes the lower bound of the subrange:
|
|
|
|
00 for a constant lower bound (found in LOWBOUND).
|
|
|
|
01 for a dynamic lower bound with the lower bound found in the the
|
|
memory address pointed to by LOWBOUND.
|
|
|
|
10 for a dynamic lower bound described by an variable found in the
|
|
DNTT/LNTT (LOWBOUND would be a pointer into the DNTT/LNTT).
|
|
|
|
DYN_HIGH is similar to DYN_LOW, except it describes the upper bound.
|
|
|
|
SUBTYPE points to the type of the subrange.
|
|
|
|
BITLENGTH is the length in bits needed to describe the subrange's
|
|
values. */
|
|
|
|
struct dntt_type_subrange
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int dyn_low: 2;
|
|
unsigned int dyn_high: 2;
|
|
unsigned int unused: 17;
|
|
int lowbound;
|
|
int highbound;
|
|
dnttpointer subtype;
|
|
unsigned int bitlength;
|
|
};
|
|
|
|
/* DNTT_TYPE_ARRAY
|
|
|
|
DECLARATION describes the bit packing used in the array.
|
|
|
|
ARRAYISBYTES is nonzero if the field in arraylength describes the
|
|
length in bytes rather than in bits. A value of zero is used to
|
|
describe an array with size 2**32.
|
|
|
|
ELEMISBYTES is nonzero if the length if each element in the array
|
|
is describes in bytes rather than bits. A value of zero is used
|
|
to an element with size 2**32.
|
|
|
|
ELEMORDER is nonzero if the elements are indexed in increasing order.
|
|
|
|
JUSTIFIED if the elements are left justified to index zero.
|
|
|
|
ARRAYLENGTH is the length of the array.
|
|
|
|
INDEXTYPE is a DNTT pointer to the type used to index the array.
|
|
|
|
ELEMTYPE is a DNTT pointer to the type for the array elements.
|
|
|
|
ELEMLENGTH is the length of each element in the array (including
|
|
any padding).
|
|
|
|
Multi-dimensional arrays are represented by ELEMTYPE pointing to
|
|
another DNTT_TYPE_ARRAY. */
|
|
|
|
struct dntt_type_array
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int declaration: 2;
|
|
unsigned int dyn_low: 2;
|
|
unsigned int dyn_high: 2;
|
|
unsigned int arrayisbytes: 1;
|
|
unsigned int elemisbytes: 1;
|
|
unsigned int elemorder: 1;
|
|
unsigned int justified: 1;
|
|
unsigned int unused: 11;
|
|
unsigned int arraylength;
|
|
dnttpointer indextype;
|
|
dnttpointer elemtype;
|
|
unsigned int elemlength;
|
|
};
|
|
|
|
/* DNTT_TYPE_STRUCT
|
|
|
|
DNTT_TYPE_STRUCT is used to describe a C structure.
|
|
|
|
DECLARATION describes the bitpacking used.
|
|
|
|
FIRSTFIELD is a DNTT pointer to the first field of the structure
|
|
(each field contains a pointer to the next field, walk the list
|
|
to access all fields of the structure).
|
|
|
|
VARTAGFIELD and VARLIST are used for Pascal variant records.
|
|
|
|
BITLENGTH is the size of the structure in bits. */
|
|
|
|
struct dntt_type_struct
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int declaration: 2;
|
|
unsigned int unused: 19;
|
|
dnttpointer firstfield;
|
|
dnttpointer vartagfield;
|
|
dnttpointer varlist;
|
|
unsigned int bitlength;
|
|
};
|
|
|
|
/* DNTT_TYPE_UNION
|
|
|
|
DNTT_TYPE_UNION is used to describe a C union.
|
|
|
|
FIRSTFIELD is a DNTT pointer to the beginning of the field chain.
|
|
|
|
BITLENGTH is the size of the union in bits. */
|
|
|
|
struct dntt_type_union
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int unused: 21;
|
|
dnttpointer firstfield;
|
|
unsigned int bitlength;
|
|
};
|
|
|
|
/* DNTT_TYPE_FIELD
|
|
|
|
DNTT_TYPE_FIELD describes one field in a structure or union.
|
|
|
|
VISIBILITY is used to describe the visibility of the field
|
|
(for c++. public = 0, protected = 1, private = 2).
|
|
|
|
A_UNION is nonzero if this field is a member of an anonymous union.
|
|
|
|
STATICMEM is nonzero if this field is a static member of a template.
|
|
|
|
NAME is a pointer into the VT for the name of the field.
|
|
|
|
BITOFFSET gives the offset of this field in bits from the beginning
|
|
of the structure or union this field is a member of.
|
|
|
|
TYPE is a DNTT pointer to the type describing this field.
|
|
|
|
BITLENGTH is the size of the entry in bits.
|
|
|
|
NEXTFIELD is a DNTT pointer to the next field in the chain. */
|
|
|
|
struct dntt_type_field
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int visibility: 2;
|
|
unsigned int a_union: 1;
|
|
unsigned int staticmem: 1;
|
|
unsigned int unused: 17;
|
|
vtpointer name;
|
|
unsigned int bitoffset;
|
|
dnttpointer type;
|
|
unsigned int bitlength;
|
|
dnttpointer nextfield;
|
|
};
|
|
|
|
/* DNTT_TYPE_VARIANT is unused by GDB. */
|
|
/* DNTT_TYPE_FILE is unused by GDB. */
|
|
|
|
/* DNTT_TYPE_COMMON is unused by GDB. */
|
|
/* DNTT_TYPE_LINK is unused by GDB. */
|
|
/* DNTT_TYPE_FFUNC_LINK is unused by GDB. */
|
|
/* DNTT_TYPE_TEMPLATE is unused by GDB. */
|
|
|
|
/* DNTT_TYPE_FUNCTYPE
|
|
|
|
VARARGS is nonzero if this function uses varargs.
|
|
|
|
FIRSTPARAM is a DNTT pointer to the first entry in the parameter
|
|
chain.
|
|
|
|
RETVAL is a DNTT pointer to the type of the return value. */
|
|
|
|
struct dntt_type_functype
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int varargs: 1;
|
|
unsigned int info: 4;
|
|
unsigned int unused: 16;
|
|
unsigned int bitlength;
|
|
dnttpointer firstparam;
|
|
dnttpointer retval;
|
|
};
|
|
|
|
/* DNTT_TYPE_WITH is unued by GDB. */
|
|
/* DNTT_TYPE_COBSTRUCT is unused by GDB. */
|
|
/* DNTT_TYPE_MODIFIER is unused by GDB. */
|
|
/* DNTT_TYPE_GENFIELD is unused by GDB. */
|
|
/* DNTT_TYPE_MEMACCESS is unused by GDB. */
|
|
/* DNTT_TYPE_VFUNC is unused by GDB. */
|
|
/* DNTT_TYPE_CLASS_SCOPE is unused by GDB. */
|
|
/* DNTT_TYPE_FRIEND_CLASS is unused by GDB. */
|
|
/* DNTT_TYPE_FRIEND_FUNC is unused by GDB. */
|
|
/* DNTT_TYPE_CLASS unused by GDB. */
|
|
/* DNTT_TYPE_TEMPLATE unused by GDB. */
|
|
/* DNTT_TYPE_TEMPL_ARG is unused by GDB. */
|
|
/* DNTT_TYPE_PTRMEM not used by GDB */
|
|
/* DNTT_TYPE_INHERITANCE is unused by GDB. */
|
|
/* DNTT_TYPE_OBJECT_ID is unused by GDB. */
|
|
/* DNTT_TYPE_XREF is unused by GDB. */
|
|
/* DNTT_TYPE_SA is unused by GDB. */
|
|
|
|
/* DNTT_TYPE_GENERIC and DNTT_TYPE_BLOCK are convience structures
|
|
so we can examine a DNTT entry in a generic fashion. */
|
|
struct dntt_type_generic
|
|
{
|
|
unsigned int word[9];
|
|
};
|
|
|
|
struct dntt_type_block
|
|
{
|
|
unsigned int extension: 1;
|
|
enum dntt_entry_type kind: 10;
|
|
unsigned int unused: 21;
|
|
unsigned int word[2];
|
|
};
|
|
|
|
/* One entry in a DNTT (either the LNTT or GNTT). */
|
|
union dnttentry
|
|
{
|
|
struct dntt_type_srcfile dsfile;
|
|
struct dntt_type_module dmodule;
|
|
struct dntt_type_function dfunc;
|
|
struct dntt_type_function dentry;
|
|
struct dntt_type_begin dbegin;
|
|
struct dntt_type_end dend;
|
|
struct dntt_type_fparam dfparam;
|
|
struct dntt_type_svar dsvar;
|
|
struct dntt_type_dvar ddvar;
|
|
struct dntt_type_const dconst;
|
|
struct dntt_type_type dtype;
|
|
struct dntt_type_type dtag;
|
|
struct dntt_type_pointer dptr;
|
|
struct dntt_type_enum denum;
|
|
struct dntt_type_memenum dmember;
|
|
struct dntt_type_set dset;
|
|
struct dntt_type_subrange dsubr;
|
|
struct dntt_type_array darray;
|
|
struct dntt_type_struct dstruct;
|
|
struct dntt_type_union dunion;
|
|
struct dntt_type_field dfield;
|
|
struct dntt_type_functype dfunctype;
|
|
struct dntt_type_generic dgeneric;
|
|
struct dntt_type_block dblock;
|
|
};
|
|
|
|
/* Source line entry types. */
|
|
enum slttype
|
|
{
|
|
SLT_NORMAL,
|
|
SLT_SRCFILE,
|
|
SLT_MODULE,
|
|
SLT_FUNCTION,
|
|
SLT_ENTRY,
|
|
SLT_BEGIN,
|
|
SLT_END,
|
|
SLT_WITH,
|
|
SLT_EXIT,
|
|
SLT_ASSIST,
|
|
SLT_MARKER,
|
|
};
|
|
|
|
/* A normal source line entry. Simply provides a mapping of a source
|
|
line number to a code address.
|
|
|
|
SLTDESC will always be SLT_NORMAL or SLT_EXIT. */
|
|
|
|
struct slt_normal
|
|
{
|
|
enum slttype sltdesc: 4;
|
|
unsigned int line: 28;
|
|
CORE_ADDR address;
|
|
};
|
|
|
|
/* A special source line entry. Provides a mapping of a declaration
|
|
to a line number. These entries point back into the DNTT which
|
|
references them. */
|
|
|
|
struct slt_special
|
|
{
|
|
enum slttype sltdesc: 4;
|
|
unsigned int line: 28;
|
|
dnttpointer backptr;
|
|
};
|
|
|
|
/* Used to describe nesting.
|
|
|
|
For nested languages, an slt_assist entry must follow each SLT_FUNC
|
|
entry in the SLT. The address field will point forward to the
|
|
first slt_normal entry within the function's scope. */
|
|
|
|
struct slt_assist
|
|
{
|
|
enum slttype sltdesc: 4;
|
|
unsigned int unused: 28;
|
|
sltpointer address;
|
|
};
|
|
|
|
struct slt_generic
|
|
{
|
|
unsigned int word[2];
|
|
};
|
|
|
|
union sltentry
|
|
{
|
|
struct slt_normal snorm;
|
|
struct slt_special sspec;
|
|
struct slt_assist sasst;
|
|
struct slt_generic sgeneric;
|
|
};
|
|
|
|
#endif /* HP_SYMTAB_INCLUDED */
|