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Diffstat (limited to 'include/hp-symtab.h')
| -rw-r--r-- | include/hp-symtab.h | 1871 |
1 files changed, 0 insertions, 1871 deletions
diff --git a/include/hp-symtab.h b/include/hp-symtab.h deleted file mode 100644 index fff56688ed2..00000000000 --- a/include/hp-symtab.h +++ /dev/null @@ -1,1871 +0,0 @@ -/* Definitions and structures for reading debug symbols from the - native HP C compiler. - - Written by the Center for Software Science at the University of Utah - and by Cygnus Support. - - Copyright 1994 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef HP_SYMTAB_INCLUDED -#define HP_SYMTAB_INCLUDED - -/* General information: - - This header file defines and describes only the data structures - necessary to read debug symbols produced by the HP C compiler, - HP ANSI C++ compiler, and HP FORTRAN 90 compiler using the - SOM object file format. - (For a full description of the debug format, ftp hpux-symtab.h from - jaguar.cs.utah.edu:/dist). - - Additional notes (Rich Title) - This file is a reverse-engineered version of a file called - "symtab.h" which exists internal to HP's Computer Languages Organization - in /CLO/Components/DDE/obj/som/symtab.h. Because HP's version of - the file is copyrighted and not distributed, it is necessary for - GDB to use the reverse-engineered version that follows. - Work was done by Cygnus to reverse-engineer the C subset of symtab.h. - The WDB project has extended this to also contain the C++ - symbol definitions, the F90 symbol definitions, - and the DOC (debugging-optimized-code) symbol definitions. - In some cases (the C++ symbol definitions) - I have added internal documentation here that - goes beyond what is supplied in HP's symtab.h. If we someday - unify these files again, the extra comments should be merged back - into HP's symtab.h. - - ------------------------------------------------------------------- - - Debug symbols are contained entirely within an unloadable space called - $DEBUG$. $DEBUG$ contains several subspaces which group related - debug symbols. - - $GNTT$ contains information for global variables, types and contants. - - $LNTT$ contains information for procedures (including nesting), scoping - information, local variables, types, and constants. - - $SLT$ contains source line information so that code addresses may be - mapped to source lines. - - $VT$ contains various strings and constants for named objects (variables, - typedefs, functions, etc). Strings are stored as null-terminated character - lists. Constants always begin on word boundaries. The first byte of - the VT must be zero (a null string). - - $XT$ is not currently used by GDB. - - Many structures within the subspaces point to other structures within - the same subspace, or to structures within a different subspace. These - pointers are represented as a structure index from the beginning of - the appropriate subspace. */ - -/* Used to describe where a constant is stored. */ -enum location_type -{ - LOCATION_IMMEDIATE, - LOCATION_PTR, - LOCATION_VT, -}; - -/* Languages supported by this debug format. Within the data structures - this type is limited to 4 bits for a maximum of 16 languages. */ -enum hp_language -{ - HP_LANGUAGE_UNKNOWN, - HP_LANGUAGE_C, - HP_LANGUAGE_F77, - HP_LANGUAGE_PASCAL, - HP_LANGUAGE_MODCAL, - HP_LANGUAGE_COBOL, - HP_LANGUAGE_BASIC, - HP_LANGUAGE_ADA, - HP_LANGUAGE_CPLUSPLUS, - HP_LANGUAGE_DMPASCAL -}; - - -/* Basic data types available in this debug format. Within the data - structures this type is limited to 5 bits for a maximum of 32 basic - data types. */ -enum hp_type -{ - HP_TYPE_UNDEFINED, /* 0 */ - HP_TYPE_BOOLEAN, /* 1 */ - HP_TYPE_CHAR, /* 2 */ - HP_TYPE_INT, /* 3 */ - HP_TYPE_UNSIGNED_INT, /* 4 */ - HP_TYPE_REAL, /* 5 */ - HP_TYPE_COMPLEX, /* 6 */ - HP_TYPE_STRING200, /* 7 */ - HP_TYPE_LONGSTRING200, /* 8 */ - HP_TYPE_TEXT, /* 9 */ - HP_TYPE_FLABEL, /* 10 */ - HP_TYPE_FTN_STRING_SPEC, /* 11 */ - HP_TYPE_MOD_STRING_SPEC, /* 12 */ - HP_TYPE_PACKED_DECIMAL, /* 13 */ - HP_TYPE_REAL_3000, /* 14 */ - HP_TYPE_MOD_STRING_3000, /* 15 */ - HP_TYPE_ANYPOINTER, /* 16 */ - HP_TYPE_GLOBAL_ANYPOINTER, /* 17 */ - HP_TYPE_LOCAL_ANYPOINTER, /* 18 */ - HP_TYPE_COMPLEXS3000, /* 19 */ - HP_TYPE_FTN_STRING_S300_COMPAT, /* 20 */ - HP_TYPE_FTN_STRING_VAX_COMPAT, /* 21 */ - HP_TYPE_BOOLEAN_S300_COMPAT, /* 22 */ - HP_TYPE_BOOLEAN_VAX_COMPAT, /* 23 */ - HP_TYPE_WIDE_CHAR, /* 24 */ - HP_TYPE_LONG, /* 25 */ - HP_TYPE_UNSIGNED_LONG, /* 26 */ - HP_TYPE_DOUBLE, /* 27 */ - HP_TYPE_TEMPLATE_ARG, /* 28 */ - HP_TYPE_VOID /* 29 */ -}; - -/* An immediate name and type table entry. - - extension and immediate will always be one. - global will always be zero. - hp_type is the basic type this entry describes. - bitlength is the length in bits for the basic type. */ -struct dnttp_immediate -{ - unsigned int extension: 1; - unsigned int immediate: 1; - unsigned int global: 1; - unsigned int type: 5; - unsigned int bitlength: 24; -}; - -/* A nonimmediate name and type table entry. - - extension will always be one. - immediate will always be zero. - if global is zero, this entry points into the LNTT - if global is one, this entry points into the GNTT - index is the index within the GNTT or LNTT for this entry. */ -struct dnttp_nonimmediate -{ - unsigned int extension: 1; - unsigned int immediate: 1; - unsigned int global: 1; - unsigned int index: 29; -}; - -/* A pointer to an entry in the GNTT and LNTT tables. It has two - forms depending on the type being described. - - The immediate form is used for simple entries and is one - word. - - The nonimmediate form is used for complex entries and contains - an index into the LNTT or GNTT which describes the entire type. - - If a dnttpointer is -1, then it is a NIL entry. */ - -#define DNTTNIL (-1) -typedef union dnttpointer -{ - struct dnttp_immediate dntti; - struct dnttp_nonimmediate dnttp; - int word; -} dnttpointer; - -/* An index into the source line table. As with dnttpointers, a sltpointer - of -1 indicates a NIL entry. */ -#define SLTNIL (-1) -typedef int sltpointer; - -/* Index into DOC (= "Debugging Optimized Code") line table */ -#define LTNIL (-1) -typedef int ltpointer; - -/* Index into context table */ -#define CTXTNIL (-1) -typedef int ctxtpointer; - -/* Unsigned byte offset into the VT. */ -typedef unsigned int vtpointer; - -/* A DNTT entry (used within the GNTT and LNTT). - - DNTT entries are variable sized objects, but are always a multiple - of 3 words (we call each group of 3 words a "block"). - - The first bit in each block is an extension bit. This bit is zero - for the first block of a DNTT entry. If the entry requires more - than one block, then this bit is set to one in all blocks after - the first one. */ - -/* Each DNTT entry describes a particular debug symbol (beginning of - a source file, a function, variables, structures, etc. - - The type of the DNTT entry is stored in the "kind" field within the - DNTT entry itself. */ - -enum dntt_entry_type -{ - DNTT_TYPE_NIL = -1, - DNTT_TYPE_SRCFILE, - DNTT_TYPE_MODULE, - DNTT_TYPE_FUNCTION, - DNTT_TYPE_ENTRY, - DNTT_TYPE_BEGIN, - DNTT_TYPE_END, - DNTT_TYPE_IMPORT, - DNTT_TYPE_LABEL, - DNTT_TYPE_FPARAM, - DNTT_TYPE_SVAR, - DNTT_TYPE_DVAR, - DNTT_TYPE_HOLE1, - DNTT_TYPE_CONST, - DNTT_TYPE_TYPEDEF, - DNTT_TYPE_TAGDEF, - DNTT_TYPE_POINTER, - DNTT_TYPE_ENUM, - DNTT_TYPE_MEMENUM, - DNTT_TYPE_SET, - DNTT_TYPE_SUBRANGE, - DNTT_TYPE_ARRAY, - DNTT_TYPE_STRUCT, - DNTT_TYPE_UNION, - DNTT_TYPE_FIELD, - DNTT_TYPE_VARIANT, - DNTT_TYPE_FILE, - DNTT_TYPE_FUNCTYPE, - DNTT_TYPE_WITH, - DNTT_TYPE_COMMON, - DNTT_TYPE_COBSTRUCT, - DNTT_TYPE_XREF, - DNTT_TYPE_SA, - DNTT_TYPE_MACRO, - DNTT_TYPE_BLOCKDATA, - DNTT_TYPE_CLASS_SCOPE, - DNTT_TYPE_REFERENCE, - DNTT_TYPE_PTRMEM, - DNTT_TYPE_PTRMEMFUNC, - DNTT_TYPE_CLASS, - DNTT_TYPE_GENFIELD, - DNTT_TYPE_VFUNC, - DNTT_TYPE_MEMACCESS, - DNTT_TYPE_INHERITANCE, - DNTT_TYPE_FRIEND_CLASS, - DNTT_TYPE_FRIEND_FUNC, - DNTT_TYPE_MODIFIER, - DNTT_TYPE_OBJECT_ID, - DNTT_TYPE_MEMFUNC, - DNTT_TYPE_TEMPLATE, - DNTT_TYPE_TEMPLATE_ARG, - DNTT_TYPE_FUNC_TEMPLATE, - DNTT_TYPE_LINK, - DNTT_TYPE_DYN_ARRAY_DESC, - DNTT_TYPE_DESC_SUBRANGE, - DNTT_TYPE_BEGIN_EXT, - DNTT_TYPE_INLN, - DNTT_TYPE_INLN_LIST, - DNTT_TYPE_ALIAS, - DNTT_TYPE_DOC_FUNCTION, - DNTT_TYPE_DOC_MEMFUNC, - DNTT_TYPE_MAX -}; - -/* DNTT_TYPE_SRCFILE: - - One DNTT_TYPE_SRCFILE symbol is output for the start of each source - file and at the begin and end of an included file. A DNTT_TYPE_SRCFILE - entry is also output before each DNTT_TYPE_FUNC symbol so that debuggers - can determine what file a function was defined in. - - LANGUAGE describes the source file's language. - - NAME points to an VT entry providing the source file's name. - - Note the name used for DNTT_TYPE_SRCFILE entries are exactly as seen - by the compiler (ie they may be relative or absolute). C include files - via <> inclusion must use absolute paths. - - ADDRESS points to an SLT entry from which line number and code locations - may be determined. */ - -struct dntt_type_srcfile -{ - unsigned int extension: 1; - unsigned int kind: 10; /* DNTT_TYPE_SRCFILE */ - unsigned int language: 4; - unsigned int unused: 17; - vtpointer name; - sltpointer address; -}; - -/* DNTT_TYPE_MODULE: - - A DNTT_TYPE_MODULE symbol is emitted for the start of a pascal - module or C source file. A module indicates a compilation unit - for name-scoping purposes; in that regard there should be - a 1-1 correspondence between GDB "symtab"'s and MODULE symbol records. - - Each DNTT_TYPE_MODULE must have an associated DNTT_TYPE_END symbol. - - NAME points to a VT entry providing the module's name. Note C - source files are considered nameless modules. - - ALIAS point to a VT entry providing a secondary name. - - ADDRESS points to an SLT entry from which line number and code locations - may be determined. */ - -struct dntt_type_module -{ - unsigned int extension: 1; - unsigned int kind: 10; /* DNTT_TYPE_MODULE */ - unsigned int unused: 21; - vtpointer name; - vtpointer alias; - dnttpointer unused2; - sltpointer address; -}; - -/* DNTT_TYPE_FUNCTION, - DNTT_TYPE_ENTRY, - DNTT_TYPE_BLOCKDATA, - DNTT_TYPE_MEMFUNC: - - A DNTT_TYPE_FUNCTION symbol is emitted for each function definition; - a DNTT_TYPE_ENTRY symbols is used for secondary entry points. Both - symbols used the dntt_type_function structure. - A DNTT_TYPE_BLOCKDATA symbol is emitted ...? - A DNTT_TYPE_MEMFUNC symbol is emitted for inlined member functions (C++). - - Each of DNTT_TYPE_FUNCTION must have a matching DNTT_TYPE_END. - - GLOBAL is nonzero if the function has global scope. - - LANGUAGE describes the function's source language. - - OPT_LEVEL describes the optimization level the function was compiled - with. - - VARARGS is nonzero if the function uses varargs. - - NAME points to a VT entry providing the function's name. - - ALIAS points to a VT entry providing a secondary name for the function. - - FIRSTPARAM points to a LNTT entry which describes the parameter list. - - ADDRESS points to an SLT entry from which line number and code locations - may be determined. - - ENTRYADDR is the memory address corresponding the the function's entry point - - RETVAL points to a LNTT entry describing the function's return value. - - LOWADDR is the lowest memory address associated with this function. - - HIADDR is the highest memory address associated with this function. */ - -struct dntt_type_function -{ - unsigned int extension: 1; - unsigned int kind: 10; /* DNTT_TYPE_FUNCTION, - DNTT_TYPE_ENTRY, - DNTT_TYPE_BLOCKDATA - or DNTT_TYPE_MEMFUNC */ - unsigned int global: 1; - unsigned int language: 4; - unsigned int nest_level: 5; - unsigned int opt_level: 2; - unsigned int varargs: 1; - unsigned int lang_info: 4; - unsigned int inlined: 1; - unsigned int localalloc: 1; - unsigned int expansion: 1; - unsigned int unused: 1; - vtpointer name; - vtpointer alias; - dnttpointer firstparam; - sltpointer address; - CORE_ADDR entryaddr; - dnttpointer retval; - CORE_ADDR lowaddr; - CORE_ADDR hiaddr; -}; - -/* DNTT_TYPE_BEGIN: - - A DNTT_TYPE_BEGIN symbol is emitted to begin a new nested scope. - Every DNTT_TYPE_BEGIN symbol must have a matching DNTT_TYPE_END symbol. - - CLASSFLAG is nonzero if this is the beginning of a c++ class definition. - - ADDRESS points to an SLT entry from which line number and code locations - may be determined. */ - -struct dntt_type_begin -{ - unsigned int extension: 1; - unsigned int kind: 10; - unsigned int classflag: 1; - unsigned int unused: 20; - sltpointer address; -}; - -/* DNTT_TYPE_END: - - A DNTT_TYPE_END symbol is emitted when closing a scope started by - a DNTT_TYPE_MODULE, DNTT_TYPE_FUNCTION, DNTT_TYPE_WITH, - DNTT_TYPE_COMMON, DNTT_TYPE_BEGIN, and DNTT_TYPE_CLASS_SCOPE symbols. - - ENDKIND describes what type of scope the DNTT_TYPE_END is closing - (one of the above 6 kinds). - - CLASSFLAG is nonzero if this is the end of a c++ class definition. - - ADDRESS points to an SLT entry from which line number and code locations - may be determined. - - BEGINSCOPE points to the LNTT entry which opened the scope. */ - -struct dntt_type_end -{ - unsigned int extension: 1; - unsigned int kind: 10; - unsigned int endkind: 10; - unsigned int classflag: 1; - unsigned int unused: 10; - sltpointer address; - dnttpointer beginscope; -}; - -/* DNTT_TYPE_IMPORT is unused by GDB. */ -/* DNTT_TYPE_LABEL is unused by GDB. */ - -/* DNTT_TYPE_FPARAM: - - A DNTT_TYPE_FPARAM symbol is emitted for a function argument. When - chained together the symbols represent an argument list for a function. - - REGPARAM is nonzero if this parameter was passed in a register. - - INDIRECT is nonzero if this parameter is a pointer to the parameter - (pass by reference or pass by value for large items). - - LONGADDR is nonzero if the parameter is a 64bit pointer. - - NAME is a pointer into the VT for the parameter's name. - - LOCATION describes where the parameter is stored. Depending on the - parameter type LOCATION could be a register number, or an offset - from the stack pointer. - - TYPE points to a NTT entry describing the type of this parameter. - - NEXTPARAM points to the LNTT entry describing the next parameter. */ - -struct dntt_type_fparam -{ - unsigned int extension: 1; - unsigned int kind: 10; - unsigned int regparam: 1; - unsigned int indirect: 1; - unsigned int longaddr: 1; - unsigned int copyparam: 1; - unsigned int dflt: 1; - unsigned int unused: 16; - vtpointer name; - int location; - dnttpointer type; - dnttpointer nextparam; - int misc; -}; - -/* DNTT_TYPE_SVAR: - - A DNTT_TYPE_SVAR is emitted to describe a variable in static storage. - - GLOBAL is nonzero if the variable has global scope. - - INDIRECT is nonzero if the variable is a pointer to an object. - - LONGADDR is nonzero if the variable is in long pointer space. - - STATICMEM is nonzero if the variable is a member of a class. - - A_UNION is nonzero if the variable is an anonymous union member. - - NAME is a pointer into the VT for the variable's name. - - LOCATION provides the memory address for the variable. - - TYPE is a pointer into either the GNTT or LNTT which describes - the type of this variable. */ - -struct dntt_type_svar -{ - unsigned int extension: 1; - unsigned int kind: 10; - unsigned int global: 1; - unsigned int indirect: 1; - unsigned int longaddr: 1; - unsigned int staticmem: 1; - unsigned int a_union: 1; - unsigned int unused1: 1; - unsigned int thread_specific: 1; - unsigned int unused2: 14; - vtpointer name; - CORE_ADDR location; - dnttpointer type; - unsigned int offset; - unsigned int displacement; -}; - -/* DNTT_TYPE_DVAR: - - A DNTT_TYPE_DVAR is emitted to describe automatic variables and variables - held in registers. - - GLOBAL is nonzero if the variable has global scope. - - INDIRECT is nonzero if the variable is a pointer to an object. - - REGVAR is nonzero if the variable is in a register. - - A_UNION is nonzero if the variable is an anonymous union member. - - NAME is a pointer into the VT for the variable's name. - - LOCATION provides the memory address or register number for the variable. - - TYPE is a pointer into either the GNTT or LNTT which describes - the type of this variable. */ - -struct dntt_type_dvar -{ - unsigned int extension: 1; - unsigned int kind: 10; - unsigned int global: 1; - unsigned int indirect: 1; - unsigned int regvar: 1; - unsigned int a_union: 1; - unsigned int unused: 17; - vtpointer name; - int location; - dnttpointer type; - unsigned int offset; -}; - -/* DNTT_TYPE_CONST: - - A DNTT_TYPE_CONST symbol is emitted for program constants. - - GLOBAL is nonzero if the constant has global scope. - - INDIRECT is nonzero if the constant is a pointer to an object. - - LOCATION_TYPE describes where to find the constant's value - (in the VT, memory, or embedded in an instruction). - - CLASSMEM is nonzero if the constant is a member of a class. - - NAME is a pointer into the VT for the constant's name. - - LOCATION provides the memory address, register number or pointer - into the VT for the constant's value. - - TYPE is a pointer into either the GNTT or LNTT which describes - the type of this variable. */ - -struct dntt_type_const -{ - unsigned int extension: 1; - unsigned int kind: 10; - unsigned int global: 1; - unsigned int indirect: 1; - unsigned int: 3; - unsigned int classmem: 1; - unsigned int unused: 15; - vtpointer name; - CORE_ADDR location; - dnttpointer type; - unsigned int offset; - unsigned int displacement; -}; - -/* 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. - Also they are associated with C++ "class" tags, which implicitly have - the same name as the class type. - - 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; - unsigned int kind: 10; /* DNTT_TYPE_TYPEDEF or - DNTT_TYPE_TAGDEF - */ - unsigned int global: 1; - unsigned int typeinfo: 1; - unsigned int unused: 19; - vtpointer name; - dnttpointer type; /* Underlying type, which for TAGDEF's may be - * DNTT_TYPE_STRUCT, DNTT_TYPE_UNION, - * DNTT_TYPE_ENUM, or DNTT_TYPE_CLASS. - * For TYPEDEF's other underlying types - * are also possible. - */ -}; - -/* 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; - unsigned int 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; - unsigned int 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; - unsigned int kind: 10; - unsigned int classmem: 1; - unsigned int unused: 20; - vtpointer name; - unsigned int value; - dnttpointer nextmem; -}; - -/* DNTT_TYPE_SET - - Used to describe PASCAL "set" type. - - 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; - unsigned int kind: 10; - unsigned int declaration: 2; - unsigned int unused: 19; - dnttpointer subtype; - unsigned int bitlength; -}; - -/* DNTT_TYPE_SUBRANGE - - Used to describe subrange type. - - 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; - unsigned int 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 - - Used to describe an array type. - - 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; - unsigned int 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; - unsigned int 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; - unsigned int 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 - or C++ class. - - 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; - unsigned int 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_FUNCTYPE - - I think this is used to describe a function type (e.g., would - be emitted as part of a function-pointer description). - - 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; - unsigned int 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 emitted by C++ to indicate "with" scoping semantics. - (Probably also emitted by PASCAL to support "with"...). - - C++ example: Say "memfunc" is a method of class "c", and say - "m" is a data member of class "c". Then from within "memfunc", - it is legal to reference "m" directly (e.g. you don't have to - say "this->m". The symbol table indicates - this by emitting a DNTT_TYPE_WITH symbol within the function "memfunc", - pointing to the type symbol for class "c". - - In GDB, this symbol record is unnecessary, - because GDB's symbol lookup algorithm - infers the "with" semantics when it sees a "this" argument to the member - function. So GDB can safely ignore the DNTT_TYPE_WITH record. - - A DNTT_TYPE_WITH has a matching DNTT_TYPE_END symbol - */ - -struct dntt_type_with { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_WITH */ - unsigned int addrtype: 2; /* 0 => STATTYPE */ - /* 1 => DYNTYPE */ - /* 2 => REGTYPE */ - unsigned int indirect: 1; /* 1 => pointer to object */ - unsigned int longaddr: 1; /* 1 => in long pointer space */ - unsigned int nestlevel: 6; /* # of nesting levels back */ - unsigned int doc_ranges: 1; /* 1 => location is range list */ - unsigned int unused: 10; - long location; /* where stored (allocated) */ - sltpointer address; - dnttpointer type; /* type of with expression */ - vtpointer name; /* name of with expression */ - unsigned long offset; /* byte offset from location */ -}; - -/* DNTT_TYPE_COMMON is unsupported by GDB. */ -/* A DNTT_TYPE_COMMON symbol must have a matching DNTT_TYPE_END symbol */ - -/* DNTT_TYPE_COBSTRUCT is unsupported by GDB. */ -/* DNTT_TYPE_XREF is unsupported by GDB. */ -/* DNTT_TYPE_SA is unsupported by GDB. */ -/* DNTT_TYPE_MACRO is unsupported by GDB */ - -/* DNTT_TYPE_BLOCKDATA has the same structure as DNTT_TYPE_FUNCTION */ - -/* The following are the C++ specific SOM records */ - -/* The purpose of the DNTT_TYPE_CLASS_SCOPE is to bracket C++ methods - and indicate the method name belongs in the "class scope" rather - than in the module they are being defined in. For example: - - class c { - ... - void memfunc(); // member function - }; - - void c::memfunc() // definition of class c's "memfunc" - { - ... - } - - main() - { - ... - } - - In the above, the name "memfunc" is not directly visible from "main". - I.e., you have to say "break c::memfunc". - If it were a normal function (not a method), it would be visible - via the simple "break memfunc". Since "memfunc" otherwise looks - like a normal FUNCTION in the symbol table, the bracketing - CLASS_SCOPE is what is used to indicate it is really a method. - - - A DNTT_TYPE_CLASS_SCOPE symbol must have a matching DNTT_TYPE_END symbol -*/ - -struct dntt_type_class_scope { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_CLASS_SCOPE */ - unsigned int unused: 21; - sltpointer address ; /* pointer to SLT entry */ - dnttpointer type ; /* pointer to class type DNTT */ -}; - -/* C++ reference parameter. - The structure of this record is the same as DNTT_TYPE_POINTER - - refer to struct dntt_type_pointer. - */ - -/* The next two describe C++ pointer-to-data-member type, and - pointer-to-member-function type, respectively. - DNTT_TYPE_PTRMEM and DNTT_TYPE_PTRMEMFUNC have the same structure - */ - -struct dntt_type_ptrmem { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_PTRMEM */ - unsigned int unused: 21; - dnttpointer pointsto ; /* pointer to class DNTT */ - dnttpointer memtype ; /* type of member */ -}; - -struct dntt_type_ptrmemfunc { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_PTRMEMFUNC */ - unsigned int unused: 21; - dnttpointer pointsto ; /* pointer to class DNTT */ - dnttpointer memtype ; /* type of member */ -}; - -/* The DNTT_TYPE_CLASS symbol is emitted to describe a class type. - * "memberlist" points to a chained list of FIELD or GENFIELD records - * indicating the class members. "parentlist" points to a chained list - * of INHERITANCE records indicating classes from which we inherit - * fields. - */ - -struct dntt_type_class -{ - unsigned int extension: 1; /* always 0 */ - unsigned int kind: 10; /* always DNTT_TYPE_CLASS */ - unsigned int abstract: 1; /* is this an abstract class? */ - unsigned int class_decl: 2; /* 0=class,1=union,2=struct */ - unsigned int expansion: 1; /* 1=template expansion */ - unsigned int unused: 17; - dnttpointer memberlist ; /* ptr to chain of [GEN]FIELDs */ - unsigned long vtbl_loc ; /* offset in obj of ptr to vtbl */ - dnttpointer parentlist ; /* ptr to K_INHERITANCE list */ - unsigned long bitlength ; /* total at this level */ - dnttpointer identlist ; /* ptr to chain of class ident's */ - dnttpointer friendlist ; /* ptr to K_FRIEND list */ - dnttpointer templateptr ; /* ptr to template */ - dnttpointer nextexp ; /* ptr to next expansion */ -}; - -/* Class members are indicated via either the FIELD record (for - data members, same as for C struct fields), or by the GENFIELD record - (for member functions). - */ - -struct dntt_type_genfield { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_GENFIELD */ - unsigned int visibility: 2; /* pub = 0, prot = 1, priv = 2 */ - unsigned int a_union: 1; /* 1 => anonymous union member */ - unsigned int unused: 18; - dnttpointer field ; /* pointer to field or qualifier */ - dnttpointer nextfield ; /* pointer to next field */ -}; - -/* C++ virtual functions */ - -struct dntt_type_vfunc { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_VFUNC */ - unsigned int pure: 1; /* pure virtual function ? */ - unsigned int unused: 20; - dnttpointer funcptr ; /* points to FUNCTION symbol */ - unsigned long vtbl_offset ; /* offset into vtbl for virtual */ -}; - -/* Not precisely sure what this is intended for - DDE ignores it */ - -struct dntt_type_memaccess { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_MEMACCESS */ - unsigned int unused: 21; - dnttpointer classptr ; /* pointer to base class */ - dnttpointer field ; /* pointer field */ -}; - -/* The DNTT_TYPE_INHERITANCE record describes derived classes. - * In particular, the "parentlist" field of the CLASS record points - * to a list of INHERITANCE records for classes from which we - * inherit members. - */ - -struct dntt_type_inheritance { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_INHERITANCE */ - unsigned int Virtual: 1; /* virtual base class ? */ - unsigned int visibility: 2; /* pub = 0, prot = 1, priv = 2 */ - unsigned int unused: 18; - dnttpointer classname ; /* first parent class, if any */ - unsigned long offset ; /* offset to start of base class */ - dnttpointer next ; /* pointer to next K_INHERITANCE */ - unsigned long future[2] ; /* padding to 3-word block end */ -}; - -/* C++ "friend" classes ... */ - -struct dntt_type_friend_class { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_FRIEND_CLASS */ - unsigned int unused: 21; - dnttpointer classptr ; /* pointer to class DNTT */ - dnttpointer next ; /* next DNTT_FRIEND */ -}; - -struct dntt_type_friend_func { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_FRIEND_FUNC */ - unsigned int unused: 21; - dnttpointer funcptr ; /* pointer to function */ - dnttpointer classptr ; /* pointer to class DNTT */ - dnttpointer next ; /* next DNTT_FRIEND */ - unsigned long future[2] ; /* padding to 3-word block end */ -}; - -/* DDE appears to ignore the DNTT_TYPE_MODIFIER record. - * It could perhaps be used to give better "ptype" output in GDB; - * otherwise it is probably safe for GDB to ignore it also. - */ - -struct dntt_type_modifier { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_MODIFIER */ - unsigned int m_const: 1; /* const */ - unsigned int m_static: 1; /* static */ - unsigned int m_void: 1; /* void */ - unsigned int m_volatile: 1; /* volatile */ - unsigned int m_duplicate: 1; /* duplicate */ - unsigned int unused: 16; - dnttpointer type ; /* subtype */ - unsigned long future ; /* padding to 3-word block end */ -}; - -/* I'm not sure what this was intended for - DDE ignores it */ - -struct dntt_type_object_id { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_OBJECT_ID */ - unsigned int indirect: 1; /* Is object_ident addr of addr? */ - unsigned int unused: 20; - unsigned long object_ident ; /* object identifier */ - unsigned long offset ; /* offset to start of base class */ - dnttpointer next ; /* pointer to next K_OBJECT_ID */ - unsigned long segoffset ; /* for linker fixup */ - unsigned long future ; /* padding to 3-word block end */ -}; - -/* No separate dntt_type_memfunc; same as dntt_type_func */ - -/* Symbol records to support templates. These only get used - * in DDE's "describe" output (like GDB's "ptype"). - */ - -/* The TEMPLATE record is the header for a template-class. - * Like the CLASS record, a TEMPLATE record has a memberlist that - * points to a list of template members. It also has an arglist - * pointing to a list of TEMPLATE_ARG records. - */ - -struct dntt_type_template { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_TEMPLATE */ - unsigned int abstract: 1; /* is this an abstract class? */ - unsigned int class_decl: 2; /* 0=class,1=union,2=struct */ - unsigned int unused: 18; - dnttpointer memberlist ; /* ptr to chain of K_[GEN]FIELDs */ - long unused2 ; /* offset in obj of ptr to vtbl */ - dnttpointer parentlist ; /* ptr to K_INHERITANCE list */ - unsigned long bitlength ; /* total at this level */ - dnttpointer identlist ; /* ptr to chain of class ident's */ - dnttpointer friendlist ; /* ptr to K_FRIEND list */ - dnttpointer arglist ; /* ptr to argument list */ - dnttpointer expansions ; /* ptr to expansion list */ -}; - -/* Template-class arguments are a list of TEMPL_ARG records - * chained together. The "name" field is the name of the formal. - * E.g.: - * template <class T> class q { ... }; - * Then "T" is the name of the formal argument. - */ -struct dntt_type_templ_arg { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_TEMPL_ARG */ - unsigned int usagetype: 1; /* 0 type-name 1 expression */ - unsigned int unused: 20; - vtpointer name ; /* name of argument */ - dnttpointer type ; /* for non type arguments */ - dnttpointer nextarg ; /* Next argument if any */ - long future[2] ; /* padding to 3-word block end */ -}; - -/* FUNC_TEMPLATE records are sort of like FUNCTION, but are emitted - * for template member functions. E.g., - * template <class T> class q { - ... - void f(); - ... - }; - * Within the list of FIELDs/GENFIELDs defining the member list - * of the template "q", "f" would appear as a FUNC_TEMPLATE. - * We'll also see instances of FUNCTION "f" records for each - * instantiation of the template. - */ - -struct dntt_type_func_template { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_FUNC_TEMPLATE */ - unsigned int public: 1; /* 1 => globally visible */ - unsigned int language: 4; /* type of language */ - unsigned int level: 5; /* nesting level (top level = 0)*/ - unsigned int optimize: 2; /* level of optimization */ - unsigned int varargs: 1; /* ellipses. Pascal/800 later */ - unsigned int info: 4; /* lang-specific stuff; F_xxxx */ - unsigned int inlined: 1; - unsigned int localloc: 1; /* 0 at top, 1 at end of block */ - unsigned int unused: 2; - vtpointer name ; /* name of function */ - vtpointer alias ; /* alternate name, if any */ - dnttpointer firstparam ; /* first FPARAM, if any */ - dnttpointer retval ; /* return type, if any */ - dnttpointer arglist ; /* ptr to argument list */ -}; - -/* LINK is apparently intended to link together function template - * definitions with their instantiations. However, it is not clear - * why this would be needed, except to provide the information on - * a "ptype" command. And as far as I can tell, aCC does not - * generate this record. - */ - -struct dntt_type_link { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* always DNTT_TYPE_LINK */ - unsigned int linkKind: 4; /* always LINK_UNKNOWN */ - unsigned int unused: 17; - long future1 ; /* expansion */ - dnttpointer ptr1 ; /* link from template */ - dnttpointer ptr2 ; /* to expansion */ - long future[2] ; /* padding to 3-word block end */ -}; - -/* end of C++ specific SOM's */ - -/* DNTT_TYPE_DYN_ARRAY_DESC is unused by GDB */ -/* DNTT_TYPE_DESC_SUBRANGE is unused by GDB */ -/* DNTT_TYPE_BEGIN_EXT is unused by GDB */ -/* DNTT_TYPE_INLN is unused by GDB */ -/* DNTT_TYPE_INLN_LIST is unused by GDB */ -/* DNTT_TYPE_ALIAS is unused by GDB */ - -struct dntt_type_doc_function { - unsigned int extension: 1; /* always zero */ - unsigned int kind: 10; /* K_DOC_FUNCTION or */ - /* K_DOC_MEMFUNC */ - unsigned int global: 1; /* 1 => globally visible */ - unsigned int language: 4; /* type of language */ - unsigned int level: 5; /* nesting level (top level = 0)*/ - unsigned int optimize: 2; /* level of optimization */ - unsigned int varargs: 1; /* ellipses. Pascal/800 later */ - unsigned int info: 4; /* lang-specific stuff; F_xxxx */ - unsigned int inlined: 1; - unsigned int localloc: 1; /* 0 at top, 1 at end of block */ - unsigned int expansion: 1; /* 1 = function expansion */ - unsigned int doc_clone: 1; - vtpointer name; /* name of function */ - vtpointer alias; /* alternate name, if any */ - dnttpointer firstparam; /* first FPARAM, if any */ - sltpointer address; /* code and text locations */ - CORE_ADDR entryaddr; /* address of entry point */ - dnttpointer retval; /* return type, if any */ - CORE_ADDR lowaddr; /* lowest address of function */ - CORE_ADDR hiaddr; /* highest address of function */ - dnttpointer inline_list; /* pointer to first inline */ - ltpointer lt_offset; /* start of frag/cp line table */ - ctxtpointer ctxt_offset; /* start of context table for this routine */ -}; - -/* DNTT_TYPE_DOC_MEMFUNC 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; - unsigned int kind: 10; - unsigned int unused: 21; - unsigned int word[2]; -}; - -/* One entry in a DNTT (either the LNTT or GNTT). - * This is a union of the above 60 or so structure definitions. - */ -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_with dwith; - struct dntt_type_function dblockdata; - struct dntt_type_class_scope dclass_scope; - struct dntt_type_pointer dreference; - struct dntt_type_ptrmem dptrmem; - struct dntt_type_ptrmemfunc dptrmemfunc; - struct dntt_type_class dclass; - struct dntt_type_genfield dgenfield; - struct dntt_type_vfunc dvfunc; - struct dntt_type_memaccess dmemaccess; - struct dntt_type_inheritance dinheritance; - struct dntt_type_friend_class dfriend_class; - struct dntt_type_friend_func dfriend_func; - struct dntt_type_modifier dmodifier; - struct dntt_type_object_id dobject_id; - struct dntt_type_template dtemplate; - struct dntt_type_templ_arg dtempl_arg; - struct dntt_type_func_template dfunc_template; - struct dntt_type_link dlink; - struct dntt_type_doc_function ddocfunc; - 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, - SLT_CLASS_SCOPE, - SLT_INLN, - SLT_NORMAL_OFFSET, -}; - -/* 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 -{ - unsigned int sltdesc: 4; - unsigned int line: 28; - CORE_ADDR address; -}; - -struct slt_normal_off -{ - unsigned int sltdesc: 4; - unsigned int offset: 6; - unsigned int line: 22; - 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 -{ - unsigned int 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 -{ - unsigned int sltdesc: 4; - unsigned int unused: 28; - sltpointer address; -}; - -struct slt_generic -{ - unsigned int word[2]; -}; - -union sltentry -{ - struct slt_normal snorm; - struct slt_normal_off snormoff; - struct slt_special sspec; - struct slt_assist sasst; - struct slt_generic sgeneric; -}; - -/* $LINES$ declarations - * This is the line table used for optimized code, which is only present - * in the new $PROGRAM_INFO$ debug space. - */ - -#define DST_LN_ESCAPE_FLAG1 15 -#define DST_LN_ESCAPE_FLAG2 14 -#define DST_LN_CTX_SPEC1 13 -#define DST_LN_CTX_SPEC2 12 - -/* - Escape function codes: -*/ -typedef enum - { - dst_ln_pad, /* pad byte */ - dst_ln_escape_1, /* reserved */ - dst_ln_dpc1_dln1, /* 1 byte line delta, 1 byte pc delta */ - dst_ln_dpc2_dln2, /* 2 bytes line delta, 2 bytes pc delta */ - dst_ln_pc4_ln4, /* 4 bytes ABSOLUTE line number, 4 bytes ABSOLUTE pc */ - dst_ln_dpc0_dln1, /* 1 byte line delta, pc delta = 0 */ - dst_ln_ln_off_1, /* statement escape, stmt # = 1 (2nd stmt on line) */ - dst_ln_ln_off, /* statement escape, stmt # = next byte */ - dst_ln_entry, /* entry escape, next byte is entry number */ - dst_ln_exit, /* exit escape */ - dst_ln_stmt_end, /* gap escape, 4 bytes pc delta */ - dst_ln_stmt_cp, /* current stmt is a critical point */ - dst_ln_escape_12, /* reserved */ - dst_ln_escape_13, /* this is an exception site record */ - dst_ln_nxt_byte, /* next byte contains the real escape code */ - dst_ln_end, /* end escape, final entry follows */ - dst_ln_escape1_END_OF_ENUM - } - dst_ln_escape1_t; - -typedef enum - { - dst_ln_ctx_1, /* next byte describes context switch with 5-bit */ - /* index into the image table and 3-bit run length. */ - /* If run length is 0, end with another cxt specifier or ctx_end */ - dst_ln_ctx_2, /* next 2 bytes switch context: 13 bit index, 3 bit run length */ - dst_ln_ctx_4, /* next 4 bytes switch context: 29 bit index, 3 bit run length */ - dst_ln_ctx_end, /* end current context */ - dst_ln_col_run_1, /* next byte is column position of start of next statement, */ - /* following byte is length of statement */ - dst_ln_col_run_2, /* next 2 bytes is column position of start of next statement, */ - /* following 2 bytes is length of statement */ - dst_ln_init_base1, /* next 4 bytes are absolute PC, followed by 1 byte of line number */ - dst_ln_init_base2, /* next 4 bytes are absolute PC, followed by 2 bytes of line number */ - dst_ln_init_base3, /* next 4 bytes are absolute PC, followed by 3 bytes of line number */ - dst_ln_escape2_END_OF_ENUM - } - dst_ln_escape2_t; - -typedef union - { - struct - { - unsigned int pc_delta : 4; /* 4 bit pc delta */ - int ln_delta : 4; /* 4 bit line number delta */ - } - delta; - - struct - { - unsigned int esc_flag : 4; /* alias for pc_delta */ - unsigned int esc_code : 4; /* escape function code (dst_ln_escape1_t, or ...2_t */ - } - esc; - - struct - { - unsigned int esc_flag : 4; /* dst_ln_ctx_spec1, or dst_ln_ctx_spec2 */ - unsigned int run_length : 2; - unsigned int ctx_index : 2; /* ...spec2 contains index; ...spec1, index - 4 */ - } - ctx_spec; - - char sdata; /* signed data byte */ - unsigned char udata; /* unsigned data byte */ - } - dst_ln_entry_t, - *dst_ln_entry_ptr_t; - -/* Warning: although the above union occupies only 1 byte the compiler treats - * it as having size 2 (the minimum size of a struct). Therefore a sequence of - * dst_ln_entry_t's cannot be described as an array, and walking through such a - * sequence requires convoluted code such as - * ln_ptr = (dst_ln_entry_ptr_t) (char*) ln_ptr + 1 - * We regret the inconvenience. */ - -/* Structure for interpreting the byte following a dst_ln_ctx1 entry */ -typedef struct { - unsigned int ctx1_index : 5; /* 5 bit index into context table */ - unsigned int ctx1_run_length : 3; /* 3 bit run length */ -} dst_ln_ctx1_t, - *dst_ln_ctx1_ptr_t; - -/* Structure for interpreting the bytes following a dst_ln_ctx2 entry */ -typedef struct { - unsigned int ctx2_index : 13; /* 13 bit index into context table */ - unsigned int ctx2_run_length : 3; /* 3 bit run length */ -} dst_ln_ctx2_t, - *dst_ln_ctx2_ptr_t; - -/* Structure for interpreting the bytes following a dst_ln_ctx4 entry */ -typedef struct { - unsigned int ctx4_index : 29; /* 29 bit index into context table */ - unsigned int ctx4_run_length : 3; /* 3 bit run length */ -} dst_ln_ctx4_t, - *dst_ln_ctx4_ptr_t; - - -/* PXDB definitions. - * - * PXDB is a post-processor which takes the executable file - * and massages the debug information so that the debugger may - * start up and run more efficiently. Some of the tasks - * performed by PXDB are: - * - * o Remove duplicate global type and variable information - * from the GNTT, - * - * o Append the GNTT onto the end of the LNTT and place both - * back in the LNTT section, - * - * o Build quick look-up tables (description follows) for - * files, procedures, modules, and paragraphs (for Cobol), - * placing these in the GNTT section, - * - * o Reconstruct the header appearing in the header section - * to access this information. - * - * The "quick look-up" tables are in the $GNTT$ sub-space, in - * the following order: - * - * Procedures -sorted by address - * Source files -sorted by address (of the - * generated code from routines) - * Modules -sorted by address - * Classes -<unsorted?> - * Address Alias -sorted by index <?> - * Object IDs -sorted by object identifier - * - * Most quick entries have (0-based) indices into the LNTT tables to - * the full entries for the item it describes. - * - * The post-PXDB header is in the $HEADER$ sub-space. Alas, it - * occurs in different forms, depending on the optimization level - * in the compilation step and whether PXDB was run or not. The - * worst part is the forms aren't self-describing, so we'll have - * to grovel in the bits to figure out what kind we're looking at - * (see hp_get_header in hp-psymtab-read.c). - */ - -/* PXDB versions - */ -#define PXDB_VERSION_CPLUSPLUS 1 -#define PXDB_VERSION_7_4 2 -#define PXDB_VERSION_CPP_30 3 -#define PXDB_VERSION_DDE_3_2A 4 -#define PXDB_VERSION_DDE_3_2 5 -#define PXDB_VERSION_DDE_4_0 6 - -#define PXDB_VERSION_2_1 1 - -/* Header version for the case that there is no DOC info - * but the executable has been processed by pxdb (the easy - * case, from "cc -g"). - */ -typedef struct PXDB_struct { - int pd_entries; /* # of entries in function look-up table */ - int fd_entries; /* # of entries in file look-up table */ - int md_entries; /* # of entries in module look-up table */ - unsigned int pxdbed : 1; /* 1 => file has been preprocessed */ - unsigned int bighdr : 1; /* 1 => this header contains 'time' word */ - unsigned int sa_header : 1;/* 1 => created by SA version of pxdb */ - /* used for version check in xdb */ - unsigned int inlined: 1; /* one or more functions have been inlined */ - unsigned int spare:12; - short version; /* pxdb header version */ - int globals; /* index into the DNTT where GNTT begins */ - unsigned int time; /* modify time of file before being pxdbed */ - int pg_entries; /* # of entries in label look-up table */ - int functions; /* actual number of functions */ - int files; /* actual number of files */ - int cd_entries; /* # of entries in class look-up table */ - int aa_entries; /* # of entries in addr alias look-up table */ - int oi_entries; /* # of entries in object id look-up table */ -} PXDB_header, *PXDB_header_ptr; - -/* Header version for the case that there is no DOC info and the - * executable has NOT been processed by pxdb. - */ -typedef struct XDB_header_struct { - long gntt_length; - long lntt_length; - long slt_length; - long vt_length; - long xt_length; -} XDB_header; - -/* Header version for the case that there is DOC info and the - * executable has been processed by pxdb. - */ -typedef struct DOC_info_PXDB_header_struct { - unsigned int xdb_header: 1; /* bit set if this is post-3.1 xdb */ - unsigned int doc_header: 1; /* bit set if this is doc-style header*/ - unsigned int version: 8; /* version of pxdb see defines - * PXDB_VERSION_* in this file */ - unsigned int reserved_for_flags: 16;/* for future use; -- must be - * set to zero - */ - unsigned int has_aux_pd_table: 1; /* $GNTT$ has aux PD table */ - unsigned int has_expr_table: 1; /* space has $EXPR$ */ - unsigned int has_range_table: 1; /* space has $RANGE$ */ - unsigned int has_context_table: 1; /* space has $SRC_CTXT$ */ - unsigned int has_lines_table: 1; /* space contains a $LINES$ - * subspace for line tables. - */ - unsigned int has_lt_offset_map: 1; /* space contains an lt_offset - * subspace for line table mapping - */ - /* the following fields are the same as those in the PXDB_header in $DEBUG$ */ - int pd_entries; /* # of entries in function look-up table */ - int fd_entries; /* # of entries in file look-up table */ - int md_entries; /* # of entries in module look-up table */ - unsigned int pxdbed : 1; /* 1 => file has been preprocessed */ - unsigned int bighdr : 1; /* 1 => this header contains 'time' word */ - unsigned int sa_header : 1;/* 1 => created by SA version of pxdb */ - /* used for version check in xdb */ - unsigned int inlined: 1; /* one or more functions have been inlined */ - unsigned int spare : 28; - int globals; /* index into the DNTT where GNTT begins */ - unsigned int time; /* modify time of file before being pxdbed */ - int pg_entries; /* # of entries in label look-up table */ - int functions; /* actual number of functions */ - int files; /* actual number of files */ - int cd_entries; /* # of entries in class look-up table */ - int aa_entries; /* # of entries in addr alias look-up table */ - int oi_entries; /* # of entries in object id look-up table */ -} DOC_info_PXDB_header; - -/* Header version for the case that there is DOC info and the - * executable has NOT been processed by pxdb. - */ -typedef struct DOC_info_header_struct { - unsigned int xdb_header: 1; /* bit set if this is post-3.1 xdb */ - unsigned int doc_header: 1; /* bit set if this is doc-style header*/ - unsigned int version: 8; /* version of debug/header - format. For 10.0 the value - will be 1. For "Davis" the - value is 2. - */ - unsigned int reserved_for_flags: 18; /* for future use; -- must be - set to zero - */ - unsigned int has_range_table: 1; /* space contains a $RANGE$ - subspace for variable ranges. - */ - unsigned int has_context_table: 1; /* space contains a $CTXT$ - subspace for context/inline - table. - */ - unsigned int has_lines_table: 1; /* space contains a $LINES$ - subspace for line tables. - */ - unsigned int has_lt_offset_map: 1; /* space contains an lt_offset - subspace for line table mapping - */ - - long gntt_length; /* same as old header */ - long lntt_length; /* same as old header */ - long slt_length; /* same as old header */ - long vt_length; /* same as old header */ - long xt_length; /* same as old header */ - long ctxt_length; /* present only if version >= 2 */ - long range_length; /* present only if version >= 2 */ - long expr_length; /* present only if version >= 2 */ - -} DOC_info_header; - -typedef union GenericDebugHeader_union -{ - PXDB_header no_doc; - DOC_info_PXDB_header doc; - XDB_header no_pxdb_no_doc; - DOC_info_header no_pxdb_doc; -} GenericDebugHeader; - - -/* Procedure Descriptor: - * - * An element of the procedure quick look-up table - */ -typedef struct quick_procedure { - long isym; /* 0-based index of first symbol*/ - /* for procedure in $LNTT$, */ - /* i.e. the procedure itself */ - CORE_ADDR adrStart; /* memory adr of start of proc */ - CORE_ADDR adrEnd; /* memory adr of end of proc */ - char *sbAlias; /* alias name of procedure */ - char *sbProc; /* real name of procedure */ - CORE_ADDR adrBp; /* address of entry breakpoint */ - CORE_ADDR adrExitBp; /* address of exit breakpoint */ - int icd; /* member of this class (index) */ - unsigned int ipd; /* index of template for this */ - /* function (index) */ - unsigned int unused: 5; - unsigned int no_lt_offset: 1;/* no entry in lt_offset table */ - unsigned int fTemplate: 1; /* function template */ - unsigned int fExpansion: 1; /* function expansion */ - unsigned int linked : 1; /* linked with other expansions */ - unsigned int duplicate: 1; /* clone of another procedure */ - unsigned int overloaded:1; /* overloaded function */ - unsigned int member: 1; /* class member function */ - unsigned int constructor:1; /* constructor function */ - unsigned int destructor:1; /* destructor function */ - unsigned int Static: 1; /* static function */ - unsigned int Virtual: 1; /* virtual function */ - unsigned int constant: 1; /* constant function */ - unsigned int pure: 1; /* pure (virtual) function */ - unsigned int language: 4; /* procedure's language */ - unsigned int inlined: 1; /* function has been inlined */ - unsigned int Operator: 1; /* operator function */ - unsigned int stub: 1; /* bodyless function */ - unsigned int optimize: 2; /* optimization level */ - unsigned int level: 5; /* nesting level (top=0) */ -} quick_procedure_entry, *quick_procedure_entry_ptr; - -/* Source File Descriptor: - * - * An element of the source file quick look-up table - */ -typedef struct quick_source { - long isym; /* 0-based index in $LNTT$ of */ - /* first symbol for this file */ - CORE_ADDR adrStart; /* mem adr of start of file's code */ - CORE_ADDR adrEnd; /* mem adr of end of file's code */ - char *sbFile; /* name of source file */ - unsigned int fHasDecl: 1; /* do we have a .d file? */ - unsigned int fWarned: 1; /* have warned about age problems? */ - unsigned int fSrcfile: 1; /* 0 => include 1=> source */ - unsigned short ilnMac; /* lines in file (0 if don't know) */ - int ipd; /* 0-based index of first procedure*/ - /* in this file, in the quick */ - /* look-up table of procedures */ - unsigned int *rgLn; /* line pointer array, if any */ -} quick_file_entry, *quick_file_entry_ptr; - -/* Module Descriptor: - * - * An element of the module quick reference table - */ -typedef struct quick_module { - long isym; /* 0-based index of first */ - /* symbol for module */ - CORE_ADDR adrStart; /* adr of start of mod. */ - CORE_ADDR adrEnd; /* adr of end of mod. */ - char *sbAlias; /* alias name of module */ - char *sbMod; /* real name of module */ - unsigned int imports: 1; /* module have any imports? */ - unsigned int vars_in_front: 1; /* module globals in front? */ - unsigned int vars_in_gaps: 1; /* module globals in gaps? */ - unsigned int language: 4; /* type of language */ - unsigned int unused : 25; - unsigned int unused2; /* space for future stuff */ -} quick_module_entry, *quick_module_entry_ptr; - -/* Auxiliary Procedure Descriptor: - * - * An element of the auxiliary procedure quick look-up table - */ -typedef struct quick_aux_procedure { - long isym_inln; /* start on inline list for proc */ - long spare; -} quick_aux_procedure_entry, *quick_aux_procedure_entry_ptr; - -/* Paragraph Descriptor: - * - * An element of the paragraph quick look-up table - */ -typedef struct quick_paragraph { - long isym; /* first symbol for label (index) */ - CORE_ADDR adrStart; /* memory adr of start of label */ - CORE_ADDR adrEnd; /* memory adr of end of label */ - char *sbLab; /* name of label */ - unsigned int inst; /* Used in xdb to store inst @ bp */ - unsigned int sect: 1; /* true = section, false = parag. */ - unsigned int unused: 31; /* future use */ -} quick_paragraph_entry, *quick_paragraph_entry_ptr; - -/* - * Class Descriptor: - * - * An element of the class quick look-up table - */ -typedef struct quick_class { - char *sbClass; /* name of class */ - long isym; /* class symbol (tag) */ - unsigned int type : 2; /* 0=class, 1=union, 2=struct */ - unsigned int fTemplate : 1;/* class template */ - unsigned int expansion : 1;/* template expansion */ - unsigned int unused :28; - sltpointer lowscope; /* beginning of defined scope */ - sltpointer hiscope; /* end of defined scope */ -} quick_class_entry, *quick_class_entry_ptr; - -/* Address Alias Entry - * - * An element of the address alias quick look-up table - */ -typedef struct quick_alias { - CORE_ADDR low; - CORE_ADDR high; - int index; - unsigned int unused : 31; - unsigned int alternate : 1; /* alternate unnamed aliases? */ -} quick_alias_entry, *quick_alias_entry_ptr; - -/* Object Identification Entry - * - * An element of the object identification quick look-up table - */ - -typedef struct quick_obj_ID { - CORE_ADDR obj_ident; /* class identifier */ - long isym; /* class symbol */ - long offset; /* offset to object start */ -} quick_obj_ID_entry, *quick_obj_ID_entry_ptr; - - -#endif /* HP_SYMTAB_INCLUDED */ - |