diff options
Diffstat (limited to 'gdb/dst.h')
| -rw-r--r-- | gdb/dst.h | 1671 |
1 files changed, 0 insertions, 1671 deletions
diff --git a/gdb/dst.h b/gdb/dst.h deleted file mode 100644 index b72c58c9653..00000000000 --- a/gdb/dst.h +++ /dev/null @@ -1,1671 +0,0 @@ -/* <apollo/dst.h> */ -/* Apollo object module DST (debug symbol table) description */ - -#ifndef apollo_dst_h -#define apollo_dst_h - -#if defined(apollo) && !defined(__GNUC__) -#define ALIGNED1 __attribute( (aligned(1)) ) -#else -/* Remove attribute directives from non-Apollo code: */ -#define ALIGNED1 /* nil */ -#endif - - - -/* Identification of this version of the debug symbol table. Producers of the - debug symbol table must write these values into the version number field of - the compilation unit record in .blocks . - */ -#define dst_version_major 1 -#define dst_version_minor 3 - - -/* - ** Enumeration of debug record types appearing in .blocks and .symbols ... - */ -typedef enum - { - dst_typ_pad, /* 0 */ - dst_typ_comp_unit, /* 1 */ - dst_typ_section_tab, /* 2 */ - dst_typ_file_tab, /* 3 */ - dst_typ_block, /* 4 */ - dst_typ_5, - dst_typ_var, - dst_typ_pointer, /* 7 */ - dst_typ_array, /* 8 */ - dst_typ_subrange, /* 9 */ - dst_typ_set, /* 10 */ - dst_typ_implicit_enum, /* 11 */ - dst_typ_explicit_enum, /* 12 */ - dst_typ_short_rec, /* 13 */ - dst_typ_old_record, - dst_typ_short_union, /* 15 */ - dst_typ_old_union, - dst_typ_file, /* 17 */ - dst_typ_offset, /* 18 */ - dst_typ_alias, /* 19 */ - dst_typ_signature, /* 20 */ - dst_typ_21, - dst_typ_old_label, /* 22 */ - dst_typ_scope, /* 23 */ - dst_typ_end_scope, /* 24 */ - dst_typ_25, - dst_typ_26, - dst_typ_string_tab, /* 27 */ - dst_typ_global_name_tab, /* 28 */ - dst_typ_forward, /* 29 */ - dst_typ_aux_size, /* 30 */ - dst_typ_aux_align, /* 31 */ - dst_typ_aux_field_size, /* 32 */ - dst_typ_aux_field_off, /* 33 */ - dst_typ_aux_field_align, /* 34 */ - dst_typ_aux_qual, /* 35 */ - dst_typ_aux_var_bound, /* 36 */ - dst_typ_extension, /* 37 */ - dst_typ_string, /* 38 */ - dst_typ_old_entry, - dst_typ_const, /* 40 */ - dst_typ_reference, /* 41 */ - dst_typ_record, /* 42 */ - dst_typ_union, /* 43 */ - dst_typ_aux_type_deriv, /* 44 */ - dst_typ_locpool, /* 45 */ - dst_typ_variable, /* 46 */ - dst_typ_label, /* 47 */ - dst_typ_entry, /* 48 */ - dst_typ_aux_lifetime, /* 49 */ - dst_typ_aux_ptr_base, /* 50 */ - dst_typ_aux_src_range, /* 51 */ - dst_typ_aux_reg_val, /* 52 */ - dst_typ_aux_unit_names, /* 53 */ - dst_typ_aux_sect_info, /* 54 */ - dst_typ_END_OF_ENUM - } -dst_rec_type_t; - - -/* - ** Dummy bounds for variably dimensioned arrays: - */ -#define dst_dummy_array_size 100 - - -/* - ** Reference to another item in the symbol table. - ** - ** The value of a dst_rel_offset_t is the relative offset from the start of the - ** referencing record to the start of the referenced record, string, etc. - ** - ** The value of a NIL dst_rel_offset_t is zero. - */ - -typedef long dst_rel_offset_t ALIGNED1; - - -/* FIXME: Here and many places we make assumptions about sizes of host - data types, structure layout, etc. Only needs to be fixed if we care - about cross-debugging, though. */ - -/* - ** Section-relative reference. - ** - ** The section index field is an index into the local compilation unit's - ** section table (see dst_rec_section_tab_t)--NOT into the object module - ** section table! - ** - ** The sect_offset field is the offset in bytes into the section. - ** - ** A NIL dst_sect_ref_t has a sect_index field of zero. Indexes originate - ** at one. - */ - -typedef struct - { - unsigned short sect_index; - unsigned long sect_offset ALIGNED1; - } -dst_sect_ref_t; - -#define dst_sect_index_nil 0 -#define dst_sect_index_origin 1 - - -/* - ** Source location descriptor. - ** - ** The file_index field is an index into the local compilation unit's - ** file table (see dst_rec_file_tab_t). - ** - ** A NIL dst_src_loc_t has a file_index field of zero. Indexes originate - ** at one. - */ - -typedef struct - { - boolean reserved:1; /* reserved for future use */ - int file_index:11; /* index into .blocks source file list */ - int line_number:20; /* source line number */ - } -dst_src_loc_t; - -#define dst_file_index_nil 0 -#define dst_file_index_origin 1 - - -/* - ** Standard (primitive) type codes. - */ - -typedef enum - { - dst_non_std_type, - dst_int8_type, /* 8 bit integer */ - dst_int16_type, /* 16 bit integer */ - dst_int32_type, /* 32 bit integer */ - dst_uint8_type, /* 8 bit unsigned integer */ - dst_uint16_type, /* 16 bit unsigned integer */ - dst_uint32_type, /* 32 bit unsigned integer */ - dst_real32_type, /* single precision ieee floatining point */ - dst_real64_type, /* double precision ieee floatining point */ - dst_complex_type, /* single precision complex */ - dst_dcomplex_type, /* double precision complex */ - dst_bool8_type, /* boolean =logical*1 */ - dst_bool16_type, /* boolean =logical*2 */ - dst_bool32_type, /* boolean =logical*4 */ - dst_char_type, /* 8 bit ascii character */ - dst_string_type, /* string of 8 bit ascii characters */ - dst_ptr_type, /* univ_pointer */ - dst_set_type, /* generic 256 bit set */ - dst_proc_type, /* generic procedure (signature not specified) */ - dst_func_type, /* generic function (signature not specified) */ - dst_void_type, /* c void type */ - dst_uchar_type, /* c unsigned char */ - dst_std_type_END_OF_ENUM - } -dst_std_type_t; - - -/* - ** General data type descriptor - ** - ** If the user_defined_type bit is clear, then the type is a standard type, and - ** the remaining bits contain the dst_std_type_t of the type. If the bit is - ** set, then the type is defined in a separate dst record, which is referenced - ** by the remaining bits as a dst_rel_offset_t. - */ - -typedef union - { - struct - { - boolean user_defined_type:1; /* tag field */ - int must_be_zero:23; /* 23 bits of pad */ - dst_std_type_t dtc:8; /* 8 bit primitive data */ - } - std_type; - - struct - { - boolean user_defined_type:1; /* tag field */ - int doffset:31; /* offset to type record */ - } - user_type; - } -dst_type_t ALIGNED1; - -/* The user_type.doffset field is a 31-bit signed value. Some versions of C - do not support signed bit fields. The following macro will extract that - field as a signed value: - */ -#define dst_user_type_offset(type_rec) \ - ( ((int) ((type_rec).user_type.doffset << 1)) >> 1 ) - - -/*================================================*/ -/*========== RECORDS IN .blocks SECTION ==========*/ -/*================================================*/ - -/*----------------------- - COMPILATION UNIT record - ----------------------- - This must be the first record in each .blocks section. - Provides a set of information describing the output of a single compilation - and pointers to additional information for the compilation unit. -*/ - -typedef enum - { - dst_pc_code_locs, /* ranges in loc strings are pc ranges */ - dst_comp_unit_END_OF_ENUM - } -dst_comp_unit_flag_t; - -typedef enum - { - dst_lang_unk, /* unknown language */ - dst_lang_pas, /* Pascal */ - dst_lang_ftn, /* FORTRAN */ - dst_lang_c, /* C */ - dst_lang_mod2, /* Modula-2 */ - dst_lang_asm_m68k, /* 68K assembly language */ - dst_lang_asm_a88k, /* AT assembly language */ - dst_lang_ada, /* Ada */ - dst_lang_cxx, /* C++ */ - dst_lang_END_OF_ENUM - } -dst_lang_type_t; - -typedef struct - { - struct - { - unsigned char major_part; /* = dst_version_major */ - unsigned char minor_part; /* = dst_version_minor */ - } - version; /* version of dst */ - unsigned short flags; /* mask of dst_comp_unit_flag_t */ - unsigned short lang_type; /* source language */ - unsigned short number_of_blocks; /* number of blocks records */ - dst_rel_offset_t root_block_offset; /* offset to root block (module?) */ - dst_rel_offset_t section_table /* offset to section table record */ ; - dst_rel_offset_t file_table; /* offset to file table record */ - unsigned long data_size; /* total size of .blocks data */ - } -dst_rec_comp_unit_t ALIGNED1; - - -/*-------------------- - SECTION TABLE record - -------------------- - There must be one section table associated with each compilation unit. - Other debug records refer to sections via their index in this table. The - section base addresses in the table are virtual addresses of the sections, - relocated by the linker. -*/ - -typedef struct - { - unsigned short number_of_sections; /* size of array: */ - unsigned long section_base[dst_dummy_array_size] ALIGNED1; - } -dst_rec_section_tab_t ALIGNED1; - - -/*----------------- - FILE TABLE record - ----------------- - There must be one file table associated with each compilation unit describing - the source (and include) files used by each compilation unit. Other debug - records refer to files via their index in this table. The first entry is the - primary source file. -*/ - -typedef struct - { - long dtm; /* time last modified (time_$clock_t) */ - dst_rel_offset_t noffset; /* offset to name string for source file */ - } -dst_file_desc_t; - -typedef struct - { - unsigned short number_of_files; /* size of array: */ - dst_file_desc_t files[dst_dummy_array_size] ALIGNED1; - } -dst_rec_file_tab_t ALIGNED1; - - -/*----------------- - NAME TABLE record - ----------------- - A name table record may appear as an auxiliary record to the file table, - providing additional qualification of the file indexes for languages that - need it (i.e. Ada). Name table entries parallel file table entries of the - same file index. -*/ - -typedef struct - { - unsigned short number_of_names; /* size of array: */ - dst_rel_offset_t names[dst_dummy_array_size] ALIGNED1; - } -dst_rec_name_tab_t ALIGNED1; - - -/*-------------- - BLOCK record - -------------- - Describes a lexical program block--a procedure, function, module, etc. -*/ - -/* Block types. These may be used in any way desired by the compiler writers. - The debugger uses them only to give a description to the user of the type of - a block. The debugger makes no other assumptions about the meaning of any - of these. For example, the fact that a block is executable (e.g., program) - or not (e.g., module) is expressed in block attributes (see below), not - guessed at from the block type. - */ -typedef enum - { - dst_block_module, /* some pascal = modula = ada types */ - dst_block_program, - dst_block_procedure, - dst_block_function, /* C function */ - dst_block_subroutine, /* some fortran block types */ - dst_block_block_data, - dst_block_stmt_function, - dst_block_package, /* a few particular to Ada */ - dst_block_package_body, - dst_block_subunit, - dst_block_task, - dst_block_file, /* a C outer scope? */ - dst_block_class, /* C++ or Simula */ - dst_block_END_OF_ENUM - } -dst_block_type_t; - -/* Block attributes. This is the information used by the debugger to represent - the semantics of blocks. - */ -typedef enum - { - dst_block_main_entry, /* the block's entry point is a main entry into - the compilation unit */ - dst_block_executable, /* the block has an entry point */ - dst_block_attr_END_OF_ENUM - } -dst_block_attr_t; - -/* Code range. Each block has associated with it one or more code ranges. An - individual code range is identified by a range of source (possibly nil) and - a range of executable code. For example, a block which has its executable - code spread over multiple sections will have one code range per section. - */ -typedef struct - { - unsigned long code_size; /* size of executable code (in bytes ) */ - dst_sect_ref_t code_start; /* starting address of executable code */ - dst_sect_ref_t lines_start; /* start of line number tables */ - } -dst_code_range_t; - -typedef struct - { - dst_block_type_t block_type:8; - unsigned short flags:8; /* mask of dst_block_attr_t flags */ - dst_rel_offset_t sibling_block_off; /* offset to next sibling block */ - dst_rel_offset_t child_block_off; /* offset to first contained block */ - dst_rel_offset_t noffset; /* offset to block name string */ - dst_sect_ref_t symbols_start; /* start of debug symbols */ - unsigned short n_of_code_ranges; /* size of array... */ - dst_code_range_t code_ranges[dst_dummy_array_size] ALIGNED1; - } -dst_rec_block_t ALIGNED1; - - -/*-------------------------- - AUX SECT INFO TABLE record - -------------------------- - Appears as an auxiliary to a block record. Expands code range information - by providing references into additional, language-dependent sections for - information related to specific code ranges of the block. Sect info table - entries parallel code range array entries of the same index. -*/ - -typedef struct - { - unsigned char tag; /* currently can only be zero */ - unsigned char number_of_refs; /* size of array: */ - dst_sect_ref_t refs[dst_dummy_array_size] ALIGNED1; - } -dst_rec_sect_info_tab_t ALIGNED1; - -/*=================================================*/ -/*========== RECORDS IN .symbols SECTION ==========*/ -/*=================================================*/ - -/*----------------- - CONSTANT record - ----------------- - Describes a symbolic constant. -*/ - -typedef struct - { - float r; /* real part */ - float i; /* imaginary part */ - } -dst_complex_t; - -typedef struct - { - double dr; /* real part */ - double di; /* imaginary part */ - } -dst_double_complex_t; - -/* The following record provides a way of describing constant values with - non-standard type and no limit on size. - */ -typedef union - { - char char_data[dst_dummy_array_size]; - short int_data[dst_dummy_array_size]; - long long_data[dst_dummy_array_size]; - } -dst_big_kon_t; - -/* Representation of the value of a general constant. - */ -typedef struct - { - unsigned short length; /* size of constant value (bytes) */ - - union - { - unsigned short kon_int8; - short kon_int16; - long kon_int32 ALIGNED1; - float kon_real ALIGNED1; - double kon_dbl ALIGNED1; - dst_complex_t kon_cplx ALIGNED1; - dst_double_complex_t kon_dcplx ALIGNED1; - char kon_char; - dst_big_kon_t kon ALIGNED1; - } - val; /* value data of constant */ - } -dst_const_t ALIGNED1; - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of const definition */ - dst_type_t type_desc; /* type of this (manifest) constant */ - dst_const_t value; - } -dst_rec_const_t ALIGNED1; - -/*---------------- - VARIABLE record - ---------------- - Describes a program variable. -*/ - -/* Variable attributes. These define certain variable semantics to the - debugger. - */ -typedef enum - { - dst_var_attr_read_only, /* is read-only (a program literal) */ - dst_var_attr_volatile, /* same as compiler's VOLATILE attribute */ - dst_var_attr_global, /* is a global definition or reference */ - dst_var_attr_compiler_gen, /* is compiler-generated */ - dst_var_attr_static, /* has static location */ - dst_var_attr_END_OF_ENUM - } -dst_var_attr_t; - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_rel_offset_t loffset; /* offset to loc string */ - dst_src_loc_t src_loc; /* file/line of variable definition */ - dst_type_t type_desc; /* type descriptor */ - unsigned short attributes; /* mask of dst_var_attr_t flags */ - } -dst_rec_variable_t ALIGNED1; - - -/*---------------- - old VAR record - ----------------- - Used by older compilers to describe a variable -*/ - -typedef enum - { - dst_var_loc_unknown, /* Actually defined as "unknown" */ - dst_var_loc_abs, /* Absolute address */ - dst_var_loc_sect_off, /* Absolute address as a section offset */ - dst_var_loc_ind_sect_off, /* An indexed section offset ???? */ - dst_var_loc_reg, /* register */ - dst_var_loc_reg_rel, /* register relative - usually fp */ - dst_var_loc_ind_reg_rel, /* Indexed register relative */ - dst_var_loc_ftn_ptr_based, /* Fortran pointer based */ - dst_var_loc_pc_rel, /* PC relative. Really. */ - dst_var_loc_external, /* External */ - dst_var_loc_END_OF_ENUM - } -dst_var_loc_t; - -/* Locations come in two versions. The short, and the long. The difference - * between the short and the long is the addition of a statement number - * field to the start andend of the range of the long, and and unkown - * purpose field in the middle. Also, loc_type and loc_index aren't - * bitfields in the long version. - */ - -typedef struct - { - unsigned short loc_type:4; - unsigned short loc_index:12; - long location; - short start_line; /* start_line and end_line? */ - short end_line; /* I'm guessing here. */ - } -dst_var_loc_short_t; - -typedef struct - { - unsigned short loc_type; - unsigned short loc_index; - long location; - short unknown; /* Always 0003 or 3b3c. Why? */ - short start_statement; - short start_line; - short end_statement; - short end_line; - } -dst_var_loc_long_t; - - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of description */ - dst_type_t type_desc; /* Type description */ - unsigned short attributes; /* mask of dst_var_attr_t flags */ - unsigned short no_of_locs:15; /* Number of locations */ - unsigned short short_locs:1; /* True if short locations. */ - union - { - dst_var_loc_short_t shorts[dst_dummy_array_size]; - dst_var_loc_long_t longs[dst_dummy_array_size]; - } - locs; - } -dst_rec_var_t; - -/*---------------- - old LABEL record - ----------------- - Used by older compilers to describe a label -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of description */ - char location[12]; /* location string */ - } -dst_rec_old_label_t ALIGNED1; - -/*---------------- - POINTER record - ---------------- - Describes a pointer type. -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to the name string for this type */ - dst_src_loc_t src_loc; /* file/line of definition */ - dst_type_t type_desc; /* base type of this pointer */ - } -dst_rec_pointer_t ALIGNED1; - - -/*------------- - ARRAY record - ------------- - Describes an array type. - - Multidimensional arrays are described with a number of dst_rec_array_t - records, one per array dimension, each linked to the next through the - elem_type_desc.doffset field. Each record must have its multi_dim flag - set. - - If column_major is true (as with FORTRAN arrays) then the last array bound in - the declaration is the first array index in memory, which is the opposite of - the usual case (as with Pascal and C arrays). - - Variable array bounds are described by auxiliary records; if aux_var_bound - records are present, the lo_bound and hi_bound fields of this record are - ignored by the debugger. - - span_comp identifies one of the language-dependent ways in which the distance - between successive array elements (span) is calculated. - dst_use_span_field -- the span is the value of span field. - dst_compute_from_prev -- the span is the size of the previous dimension. - dst_compute_from_next -- the span is the size of the next dimension. - In the latter two cases, the span field contains an amount of padding to add - to the size of the appropriate dimension to calculate the span. -*/ - -typedef enum - { - dst_use_span_field, - dst_compute_from_prev, - dst_compute_from_next, - dst_span_comp_END_OF_ENUM - } -dst_span_comp_t; - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of definition */ - dst_type_t elem_type_desc; /* array element type */ - dst_type_t indx_type_desc; /* array index type */ - long lo_bound; /* lower bound of index */ - long hi_bound; /* upper bound of index */ - unsigned long span; /* see above */ - unsigned long size; /* total array size (bytes) */ - boolean multi_dim:1; - boolean is_packed:1; /* true if packed array */ - boolean is_signed:1; /* true if packed elements are signed */ - dst_span_comp_t span_comp:2; /* how to compute span */ - boolean column_major:1; - unsigned short reserved:2; /* must be zero */ - unsigned short elem_size:8; /* element size if packed (bits) */ - } -dst_rec_array_t ALIGNED1; - - -/*----------------- - SUBRANGE record - ----------------- - Describes a subrange type. -*/ - -/* Variable subrange bounds are described by auxiliary records; if aux_var_bound - records are present, the lo_bound and hi_bound fields of this record are - ignored by the debugger. - */ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of subrange definition */ - dst_type_t type_desc; /* parent type */ - long lo_bound; /* lower bound of subrange */ - long hi_bound; /* upper bound of subrange */ - unsigned short size; /* storage size (bytes) */ - } -dst_rec_subrange_t ALIGNED1; - - -/*--------------- - STRING record - --------------- - Describes a string type. -*/ - -/* Variable subrange bounds are described by auxiliary records; if aux_var_bound - records are present, the lo_bound and hi_bound fields of this record are - ignored by the debugger. - */ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of string definition */ - dst_type_t elem_type_desc; /* element type */ - dst_type_t indx_type_desc; /* index type */ - long lo_bound; /* lower bound */ - long hi_bound; /* upper bound */ - unsigned long size; /* total string size (bytes) if fixed */ - } -dst_rec_string_t ALIGNED1; - - -/*--------------- - SET record - --------------- - Describes a set type. -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of definition */ - dst_type_t type_desc; /* element type */ - unsigned short nbits; /* number of bits in set */ - unsigned short size; /* storage size (bytes) */ - } -dst_rec_set_t ALIGNED1; - - -/*----------------------------- - IMPLICIT ENUMERATION record - ----------------------------- - Describes an enumeration type with implicit element values = 0, 1, 2, ... - (Pascal-style). -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of definition */ - unsigned short nelems; /* number of elements in enumeration */ - unsigned short size; /* storage size (bytes) */ - /* offsets to name strings of elements 0, 1, 2, ... */ - dst_rel_offset_t elem_noffsets[dst_dummy_array_size]; - } -dst_rec_implicit_enum_t ALIGNED1; - - -/*----------------------------- - EXPLICIT ENUMERATION record - ----------------------------- - Describes an enumeration type with explicitly assigned element values - (C-style). -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to element name string */ - long value; /* element value */ - } -dst_enum_elem_t; - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of definition */ - unsigned short nelems; /* number of elements in enumeration */ - unsigned short size; /* storage size (bytes) */ - /* name/value pairs, one describing each enumeration value: */ - dst_enum_elem_t elems[dst_dummy_array_size]; - } -dst_rec_explicit_enum_t ALIGNED1; - - -/*----------------------- - RECORD / UNION record - ----------------------- - Describes a record (struct) or union. - - If the record is larger than 2**16 bytes then an attached aux record - specifies its size. Also, if the record is stored in short form then - attached records specify field offsets larger than 2**16 bytes. - - Whether the fields[] array or sfields[] array is used is selected by - the dst_rec_type_t of the overall dst record. -*/ - -/* - Record field descriptor, short form. This form handles only fields which - are an even number of bytes long, located some number of bytes from the - start of the record. - */ -typedef struct - { - dst_rel_offset_t noffset; /* offset to field name string */ - dst_type_t type_desc; /* field type */ - unsigned short foffset; /* field offset from start of record (bytes) */ - } -dst_short_field_t ALIGNED1; - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_type_t type_desc; /* field type */ - unsigned short foffset; /* byte offset */ - unsigned short is_packed:1; /* True if field is packed */ - unsigned short bit_offset:6; /* Bit offset */ - unsigned short size:6; /* Size in bits */ - unsigned short sign:1; /* True if signed */ - unsigned short pad:2; /* Padding. Must be 0 */ - } -dst_old_field_t ALIGNED1; - -/* Tag enumeration for long record field descriptor: - */ -typedef enum - { - dst_field_byte, - dst_field_bit, - dst_field_loc, - dst_field_END_OF_ENUM - } -dst_field_format_t; - -/* - Record field descriptor, long form. The format of the field information - is identified by the format_tag, which contains one of the above values. - The field_byte variant is equivalent to the short form of field descriptor. - The field_bit variant handles fields which are any number of bits long, - located some number of bits from the start of the record. The field_loc - variant allows the location of the field to be described by a general loc - string. - */ -typedef struct - { - dst_rel_offset_t noffset; /* offset to name of field */ - dst_type_t type_desc; /* type of field */ - union - { - struct - { - dst_field_format_t format_tag:2; /* dst_field_byte */ - unsigned long offset:30; /* offset of field in bytes */ - } - field_byte ALIGNED1; - struct - { - dst_field_format_t format_tag:2; /* dst_field_bit */ - unsigned long nbits:6; /* bit size of field */ - unsigned long is_signed:1; /* signed/unsigned attribute */ - unsigned long bit_offset:3; /* bit offset from byte boundary */ - int pad:4; /* must be zero */ - unsigned short byte_offset; /* offset of byte boundary */ - } - field_bit ALIGNED1; - struct - { - dst_field_format_t format_tag:2; /* dst_field_loc */ - int loffset:30; /* dst_rel_offset_t to loc string */ - } - field_loc ALIGNED1; - } - f ALIGNED1; - } -dst_field_t; - -/* The field_loc.loffset field is a 30-bit signed value. Some versions of C do - not support signed bit fields. The following macro will extract that field - as a signed value: - */ -#define dst_field_loffset(field_rec) \ - ( ((int) ((field_rec).f.field_loc.loffset << 2)) >> 2 ) - - -typedef struct - { - dst_rel_offset_t noffset; /* offset to record name string */ - dst_src_loc_t src_loc; /* file/line where this record is defined */ - unsigned short size; /* storage size (bytes) */ - unsigned short nfields; /* number of fields in this record */ - union - { - dst_field_t fields[dst_dummy_array_size]; - dst_short_field_t sfields[dst_dummy_array_size]; - dst_old_field_t ofields[dst_dummy_array_size]; - } - f; /* array of fields */ - } -dst_rec_record_t ALIGNED1; - - -/*------------- - FILE record - ------------- - Describes a file type. -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line where type was defined */ - dst_type_t type_desc; /* file element type */ - } -dst_rec_file_t ALIGNED1; - - -/*--------------- - OFFSET record - --------------- - Describes a Pascal offset type. - (This type, an undocumented Domain Pascal extension, is currently not - supported by the debugger) -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to the name string */ - dst_src_loc_t src_loc; /* file/line of definition */ - dst_type_t area_type_desc; /* area type */ - dst_type_t base_type_desc; /* base type */ - long lo_bound; /* low bound of the offset range */ - long hi_bound; /* high bound of the offset range */ - long bias; /* bias */ - unsigned short scale; /* scale factor */ - unsigned short size; /* storage size (bytes) */ - } -dst_rec_offset_t ALIGNED1; - - -/*-------------- - ALIAS record - -------------- - Describes a type alias (e.g., typedef). -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of definition */ - dst_type_t type_desc; /* parent type */ - } -dst_rec_alias_t ALIGNED1; - - -/*------------------ - SIGNATURE record - ------------------ - Describes a procedure/function type. -*/ - -/* Enumeration of argument semantics. Note that most are mutually - exclusive. - */ -typedef enum - { - dst_arg_attr_val, /* passed by value */ - dst_arg_attr_ref, /* passed by reference */ - dst_arg_attr_name, /* passed by name */ - dst_arg_attr_in, /* readable in the callee */ - dst_arg_attr_out, /* writable in the callee */ - dst_arg_attr_hidden, /* not visible in the caller */ - dst_arg_attr_END_OF_ENUM - } -dst_arg_attr_t; - -/* Argument descriptor. Actually points to a variable record for most of the - information. - */ -typedef struct - { - dst_rel_offset_t var_offset; /* offset to variable record */ - unsigned short attributes; /* a mask of dst_arg_attr_t flags */ - } -dst_arg_t ALIGNED1; - -typedef struct - { - dst_rel_offset_t noffset; /* offset to name string */ - dst_src_loc_t src_loc; /* file/line of function definition */ - dst_rel_offset_t result; /* offset to function result variable record */ - unsigned short nargs; /* number of arguments */ - dst_arg_t args[dst_dummy_array_size]; - } -dst_rec_signature_t ALIGNED1; - -/*-------------- - SCOPE record - -------------- - Obsolete. Use the new ENTRY type instead. - Old compilers may put this in as the first entry in a function, - terminated by an end of scope entry. -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* Name offset */ - dst_src_loc_t start_line; /* Starting line */ - dst_src_loc_t end_line; /* Ending line */ - } -dst_rec_scope_t ALIGNED1; - -/*-------------- - ENTRY record - -------------- - Describes a procedure/function entry point. An entry record is to a - signature record roughly as a variable record is to a type descriptor record. - - The entry_number field is keyed to the entry numbers in .lines -- the - debugger locates the code location of an entry by searching the line - number table for an entry numbered with the value of entry_number. The - main entry is numbered zero. -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to entry name string */ - dst_rel_offset_t loffset; /* where to jump to call this entry */ - dst_src_loc_t src_loc; /* file/line of definition */ - dst_rel_offset_t sig_desc; /* offset to signature descriptor */ - unsigned int entry_number:8; - int pad:8; /* must be zero */ - } -dst_rec_entry_t ALIGNED1; - -/*----------------------- - Old format ENTRY record - ----------------------- - Supposedly obsolete but still used by some compilers. - */ - -typedef struct - { - dst_rel_offset_t noffset; /* Offset to entry name string */ - dst_src_loc_t src_loc; /* Location in source */ - dst_rel_offset_t sig_desc; /* Signature description */ - char unknown[36]; - } -dst_rec_old_entry_t ALIGNED1; - -/*-------------- - LABEL record - -------------- - Describes a program label. -*/ - -typedef struct - { - dst_rel_offset_t noffset; /* offset to label string */ - dst_rel_offset_t loffset; /* offset to loc string */ - dst_src_loc_t src_loc; /* file/line of definition */ - } -dst_rec_label_t ALIGNED1; - - -/*----------------------- - AUXILIARY SIZE record - ----------------------- - May appear in the auxiliary record list of any type or variable record to - modify the default size of the type or variable. -*/ - -typedef struct - { - unsigned long size; /* size (bytes) */ - } -dst_rec_aux_size_t ALIGNED1; - - -/*----------------------- - AUXILIARY ALIGN record - ----------------------- - May appear in the auxiliary record list of any type or variable record to - modify the default alignment of the type or variable. -*/ - -typedef struct - { - unsigned short alignment; /* # of low order zero bits */ - } -dst_rec_aux_align_t ALIGNED1; - - -/*----------------------------- - AUXILIARY FIELD SIZE record - ----------------------------- - May appear in the auxiliary record list of any RECORD/UNION record to - modify the default size of a field. -*/ - -typedef struct - { - unsigned short field_no; /* field number */ - unsigned long size; /* size (bits) */ - } -dst_rec_aux_field_size_t ALIGNED1; - - - -/*----------------------------- - AUXILIARY FIELD OFFSET record - ----------------------------- - May appear in the auxiliary record list of any RECORD/UNION record to - specify a field offset larger than 2**16. -*/ - -typedef struct - { - unsigned short field_no; /* field number */ - unsigned long foffset; /* offset */ - } -dst_rec_aux_field_off_t ALIGNED1; - - -/*----------------------------- - AUXILIARY FIELD ALIGN record - ----------------------------- - May appear in the auxiliary record list of any RECORD/UNION record to - modify the default alignment of a field. -*/ - -typedef struct - { - unsigned short field_no; /* field number */ - unsigned short alignment; /* number of low order zero bits */ - } -dst_rec_aux_field_align_t ALIGNED1; - - -/*---------------------------- - AUXILIARY VAR BOUND record - ---------------------------- - May appear in the auxiliary record list of any ARRAY, SUBRANGE or STRING - record to describe a variable bound for the range of the type. -*/ - -typedef enum - { - dst_low_bound, /* the low bound is variable */ - dst_high_bound, /* the high bound is variable */ - dst_var_bound_END_OF_ENUM - } -dst_var_bound_t; - -typedef struct - { - unsigned short which; /* which bound */ - dst_rel_offset_t voffset ALIGNED1; /* variable that defines bound */ - } -dst_rec_aux_var_bound_t ALIGNED1; - - -/*---------------------------------- - AUXILIARY TYPE DERIVATION record - ---------------------------------- - May appear in the auxiliary record list of any RECORD/UNION record to denote - class inheritance of that type from a parent type. - - Inheritance implies that it is possible to convert the inheritor type to the - inherited type, retaining those fields which were inherited. To allow this, - orig_field_no, a field number into the record type, is provided. If - orig_is_pointer is false, then the start of the inherited record is located - at the location of the field indexed by orig_field_no. If orig_is_pointer - is true, then it is located at the address contained in the field indexed - by orig_field_no (assumed to be a pointer). -*/ - -typedef struct - { - dst_type_t parent_type; /* reference to inherited type */ - unsigned short orig_field_no; - boolean orig_is_pointer:1; - int unused:15; /* must be zero */ - } -dst_rec_aux_type_deriv_t ALIGNED1; - - -/*------------------------------------ - AUXILIARY VARIABLE LIFETIME record - ------------------------------------ - May appear in the auxiliary record list of a VARIABLE record to add location - information for an additional variable lifetime. -*/ - -typedef struct - { - dst_rel_offset_t loffset; - } -dst_rec_aux_lifetime_t ALIGNED1; - - -/*------------------------------- - AUXILIARY POINTER BASE record - ------------------------------- - May appear in the auxiliary record list of a VARIABLE record to provide a - pointer base to substitute for references to any such bases in the location - string of the variable. A pointer base is another VARIABLE record. When - the variable is evaluated by the debugger, it uses the current value of the - pointer base variable in computing its location. - - This is useful for representing FORTRAN pointer-based variables. -*/ - -typedef struct - { - dst_rel_offset_t voffset; - } -dst_rec_aux_ptr_base_t ALIGNED1; - - -/*--------------------------------- - AUXILIARY REGISTER VALUE record - --------------------------------- - May appear in the auxiliary record list of an ENTRY record to specify - a register that must be set to a specific value before jumping to the entry - point in a debugger "call". The debugger must set the debuggee register, - specified by the register code, to the value of the *address* to which the - location string resolves. If the address is register-relative, then the - call cannot be made unless the current stack frame is the lexical parent - of the entry. An example of this is when a (Pascal) nested procedure - contains references to its parent's variables, which it accesses through - a static link register. The static link register must be set to some - address relative to the parent's stack base register. -*/ - -typedef struct - { - unsigned short reg; /* identifies register to set (isp enum) */ - dst_rel_offset_t loffset; /* references a location string */ - } -dst_rec_aux_reg_val_t ALIGNED1; - - -/*==========================================================*/ -/*========== RECORDS USED IN .blocks AND .symbols ==========*/ -/*==========================================================*/ - -/*--------------------- - STRING TABLE record - --------------------- - A string table record contains any number of null-terminated, variable length - strings. The length field gives the size in bytes of the text field, which - can be any size. - - The global name table shares this format. This record appears in the - .blocks section. Each string in the table identifies a global defined in - the current compilation unit. - - The loc pool record shares this format as well. Loc strings are described - elsewhere. -*/ - -typedef struct - { - unsigned long length; - char text[dst_dummy_array_size]; - } -dst_rec_string_tab_t ALIGNED1; - - -/*----------------------- - AUXILIARY QUAL record - ----------------------- - May appear in the auxiliary record list of any BLOCK, VARIABLE, or type record - to provide it with a fully-qualified, language-dependent name. -*/ - -typedef struct - { - dst_rel_offset_t lang_qual_name; - } -dst_rec_aux_qual_t ALIGNED1; - - -/*---------------- - FORWARD record - ---------------- - Reference to a record somewhere else. This allows identical definitions in - different scopes to share data. -*/ - -typedef struct - { - dst_rel_offset_t rec_off; - } -dst_rec_forward_t ALIGNED1; - - -/*------------------------------- - AUXILIARY SOURCE RANGE record - ------------------------------- - May appear in the auxiliary record list of any BLOCK record to specify a - range of source lines over which the block is active. -*/ - -typedef struct - { - dst_src_loc_t first_line; /* first source line */ - dst_src_loc_t last_line; /* last source line */ - } -dst_rec_aux_src_range_t ALIGNED1; - - -/*------------------ - EXTENSION record - ------------------ - Provision for "foreign" records, such as might be generated by a non-Apollo - compiler. Apollo software will ignore these. -*/ - -typedef struct - { - unsigned short rec_size; /* record size (bytes) */ - unsigned short ext_type; /* defined by whoever generates it */ - unsigned short ext_data; /* place-holder for arbitrary amount of data */ - } -dst_rec_extension_t ALIGNED1; - - -/* - ** DEBUG SYMBOL record -- The wrapper for all .blocks and .symbols records. - ** - ** This record ties together all previous .blocks and .symbols records - ** together in a union with a common header. The rec_type field of the - ** header identifies the record type. The rec_flags field currently only - ** defines auxiliary record lists. - ** - ** If a record carries with it a non-null auxiliary record list, its - ** dst_flag_has_aux_recs flag is set, and each of the records that follow - ** it are treated as its auxiliary records, until the end of the compilation - ** unit or scope is reached, or until an auxiliary record with its - ** dst_flag_last_aux_rec flag set is reached. - */ - -typedef enum - { - dst_flag_has_aux_recs, - dst_flag_last_aux_rec, - dst_rec_flag_END_OF_ENUM - } -dst_rec_flags_t; - -typedef struct - { - dst_rec_type_t rec_type:8; /* record type */ - int rec_flags:8; /* mask of dst_rec_flags_t */ - union /* switched on rec_type field above */ - { - /* dst_typ_pad requires no additional fields */ - dst_rec_comp_unit_t comp_unit_; - dst_rec_section_tab_t section_tab_; - dst_rec_file_tab_t file_tab_; - dst_rec_block_t block_; - dst_rec_var_t var_; - dst_rec_pointer_t pointer_; - dst_rec_array_t array_; - dst_rec_subrange_t subrange_; - dst_rec_set_t set_; - dst_rec_implicit_enum_t implicit_enum_; - dst_rec_explicit_enum_t explicit_enum_; - /* dst_typ_short_{rec,union} are represented by 'rec' (below) */ - dst_rec_file_t file_; - dst_rec_offset_t offset_; - dst_rec_alias_t alias_; - dst_rec_signature_t signature_; - dst_rec_old_label_t old_label_; - dst_rec_scope_t scope_; - /* dst_typ_end_scope requires no additional fields */ - dst_rec_string_tab_t string_tab_; - /* dst_typ_global_name_tab is represented by 'string_tab' (above) */ - dst_rec_forward_t forward_; - dst_rec_aux_size_t aux_size_; - dst_rec_aux_align_t aux_align_; - dst_rec_aux_field_size_t aux_field_size_; - dst_rec_aux_field_off_t aux_field_off_; - dst_rec_aux_field_align_t aux_field_align_; - dst_rec_aux_qual_t aux_qual_; - dst_rec_aux_var_bound_t aux_var_bound_; - dst_rec_extension_t extension_; - dst_rec_string_t string_; - dst_rec_const_t const_; - /* dst_typ_reference is represented by 'pointer' (above) */ - dst_rec_record_t record_; - /* dst_typ_union is represented by 'record' (above) */ - dst_rec_aux_type_deriv_t aux_type_deriv_; - /* dst_typ_locpool is represented by 'string_tab' (above) */ - dst_rec_variable_t variable_; - dst_rec_label_t label_; - dst_rec_entry_t entry_; - dst_rec_aux_lifetime_t aux_lifetime_; - dst_rec_aux_ptr_base_t aux_ptr_base_; - dst_rec_aux_src_range_t aux_src_range_; - dst_rec_aux_reg_val_t aux_reg_val_; - dst_rec_name_tab_t aux_unit_names_; - dst_rec_sect_info_tab_t aux_sect_info_; - } - rec_data ALIGNED1; - } -dst_rec_t, *dst_rec_ptr_t; - - -/*===============================================*/ -/*========== .lines SECTION DEFINITIONS =========*/ -/*===============================================*/ -/* - The .lines section contains a sequence of line number tables. There is no - record structure within the section. The start of the table for a routine - is pointed to by the block record, and the end of the table is signaled by - an escape code. - - A line number table is a sequence of bytes. The default entry contains a line - number delta (-7..+7) in the high 4 bits and a pc delta (0..15) in the low 4 - bits. Special cases, including when one or both of the values is too large - to fit in 4 bits and other special cases are handled through escape entries. - Escape entries are identified by the value 0x8 in the high 4 bits. The low 4 - bits are occupied by a function code. Some escape entries are followed by - additional arguments, which may be bytes, words, or longwords. This data is - not aligned. - - The initial PC offset, file number and line number are zero. Normally, the - table begins with a dst_ln_file escape which establishes the initial file - and line number. All PC deltas are unsigned (thus the table is ordered by - increasing PC); line number deltas are signed. The table ends with a - dst_ln_end escape, which is followed by a final table entry whose PC delta - gives the code size of the last statement. - - Escape Semantic - --------- ------------------------------------------------------------ - file Changes file state. The current source file remains constant - until another file escape. Though the line number state is - also updated by a file escape, a file escape does NOT - constitute a line table entry. - - statement Alters the statement number of the next table entry. By - default, all table entries refer to the first statement on a - line. Statement number one is the second statement, and so on. - - entry Identifies the next table entry as the position of an entry - point for the current block. The PC position should follow - any procedure prologue code. An argument specifies the entry - number, which is keyed to the entry number of the corresponding - .symbols ENTRY record. - - exit Identifies the next table entry as the last position within - the current block before a procedure epiloge and subsequent - procedure exit. - - gap By default, the executable code corresponding to a table entry - is assumed to extend to the beginning of the next table entry. - If this is not the case--there is a "hole" in the table--then - a gap escape should follow the first table entry to specify - where the code for that entry ends. - */ - -#define dst_ln_escape_flag -8 - -/* - Escape function codes: - */ -typedef enum - { - dst_ln_pad, /* pad byte */ - dst_ln_file, /* file escape. Next 4 bytes are a dst_src_loc_t */ - dst_ln_dln1_dpc1, /* 1 byte line delta, 1 byte pc delta */ - dst_ln_dln2_dpc2, /* 2 bytes line delta, 2 bytes pc delta */ - dst_ln_ln4_pc4, /* 4 bytes ABSOLUTE line number, 4 bytes ABSOLUTE pc */ - dst_ln_dln1_dpc0, /* 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_escape_11, /* reserved */ - dst_ln_escape_12, /* reserved */ - dst_ln_escape_13, /* reserved */ - dst_ln_nxt_byte, /* next byte contains the real escape code */ - dst_ln_end, /* end escape, final entry follows */ - dst_ln_escape_END_OF_ENUM - } -dst_ln_escape_t; - -/* - Line number table entry - */ -typedef union - { - struct - { - unsigned int ln_delta:4; /* 4 bit line number delta */ - unsigned int pc_delta:4; /* 4 bit pc delta */ - } - delta; - - struct - { - unsigned int esc_flag:4; /* alias for ln_delta */ - dst_ln_escape_t esc_code:4; /* escape function code */ - } - esc; - - char sdata; /* signed data byte */ - unsigned char udata; /* unsigned data byte */ - } -dst_ln_entry_t, - *dst_ln_entry_ptr_t, - dst_ln_table_t[dst_dummy_array_size]; - -/* The following macro will extract the ln_delta field as a signed value: - */ -#define dst_ln_ln_delta(ln_rec) \ - ( ((short) ((ln_rec).delta.ln_delta << 12)) >> 12 ) - - - - -typedef struct dst_sec_struct - { - char *buffer; - long position; - long size; - long base; - } -dst_sec; - - -/* Macros for access to the data */ - -#define DST_comp_unit(x) ((x)->rec_data.comp_unit_) -#define DST_section_tab(x) ((x)->rec_data.section_tab_) -#define DST_file_tab(x) ((x)->rec_data.file_tab_) -#define DST_block(x) ((x)->rec_data.block_) -#define DST_var(x) ((x)->rec_data.var_) -#define DST_pointer(x) ((x)->rec_data.pointer_) -#define DST_array(x) ((x)->rec_data.array_) -#define DST_subrange(x) ((x)->rec_data.subrange_) -#define DST_set(x) ((x)->rec_data.set_) -#define DST_implicit_enum(x) ((x)->rec_data.implicit_enum_) -#define DST_explicit_enum(x) ((x)->rec_data.explicit_enum_) -#define DST_short_rec(x) ((x)->rec_data.record_) -#define DST_short_union(x) ((x)->rec_data.record_) -#define DST_file(x) ((x)->rec_data.file_) -#define DST_offset(x) ((x)->rec_data.offset_) -#define DST_alias(x) ((x)->rec_data.alias_) -#define DST_signature(x) ((x)->rec_data.signature_) -#define DST_old_label(x) ((x)->rec_data.old_label_) -#define DST_scope(x) ((x)->rec_data.scope_) -#define DST_string_tab(x) ((x)->rec_data.string_tab_) -#define DST_global_name_tab(x) ((x)->rec_data.string_tab_) -#define DST_forward(x) ((x)->rec_data.forward_) -#define DST_aux_size(x) ((x)->rec_data.aux_size_) -#define DST_aux_align(x) ((x)->rec_data.aux_align_) -#define DST_aux_field_size(x) ((x)->rec_data.aux_field_size_) -#define DST_aux_field_off(x) ((x)->rec_data.aux_field_off_) -#define DST_aux_field_align(x) ((x)->rec_data.aux_field_align_) -#define DST_aux_qual(x) ((x)->rec_data.aux_qual_) -#define DST_aux_var_bound(x) ((x)->rec_data.aux_var_bound_) -#define DST_extension(x) ((x)->rec_data.extension_) -#define DST_string(x) ((x)->rec_data.string_) -#define DST_const(x) ((x)->rec_data.const_) -#define DST_reference(x) ((x)->rec_data.pointer_) -#define DST_record(x) ((x)->rec_data.record_) -#define DST_union(x) ((x)->rec_data.record_) -#define DST_aux_type_deriv(x) ((x)->rec_data.aux_type_deriv_) -#define DST_locpool(x) ((x)->rec_data.string_tab_) -#define DST_variable(x) ((x)->rec_data.variable_) -#define DST_label(x) ((x)->rec_data.label_) -#define DST_entry(x) ((x)->rec_data.entry_) -#define DST_aux_lifetime(x) ((x)->rec_data.aux_lifetime_) -#define DST_aux_ptr_base(x) ((x)->rec_data.aux_ptr_base_) -#define DST_aux_src_range(x) ((x)->rec_data.aux_src_range_) -#define DST_aux_reg_val(x) ((x)->rec_data.aux_reg_val_) -#define DST_aux_unit_names(x) ((x)->rec_data.aux_unit_names_) -#define DST_aux_sect_info(x) ((x)->rec_data.aux_sect_info_) - - -/* - * Type codes for loc strings. I'm not entirely certain about all of - * these, but they seem to work. - * troy@cbme.unsw.EDU.AU - * If you find a variable whose location can't be decoded, you should - * find out it's code using "dstdump -s filename". It will record an - * entry for the variable, and give a text representation of what - * the locstring means. Before that explaination there will be a - * number. In the LOCSTRING table, that number will appear before - * the start of the location string. Location string codes are - * five bit codes with a 3 bit argument. Check the high 5 bits of - * the one byte code, and figure out where it goes in here. - * Then figure out exactly what the meaning is and code it in - * dstread.c - * - * Note that ranged locs mean that the variable is in different locations - * depending on the current PC. We ignore these because (a) gcc can't handle - * them, and (b), If you don't use high levels of optimisation they won't - * occur. - */ -typedef enum - { - dst_lsc_end, /* End of string */ - dst_lsc_indirect, /* Indirect through previous. Arg == 6 */ - /* Or register ax (x=arg) */ - dst_lsc_dreg, /* register dx (x=arg) */ - dst_lsc_03, - dst_lsc_section, /* Section (arg+1) */ - dst_lsc_05, - dst_lsc_06, - dst_lsc_add, /* Add (arg+1)*2 */ - dst_lsc_sub, /* Subtract (arg+1)*2 */ - dst_lsc_09, - dst_lsc_0a, - dst_lsc_sec_byte, /* Section of next byte+1 */ - dst_lsc_add_byte, /* Add next byte (arg == 5) or next word - * (arg == 6) - */ - dst_lsc_sub_byte, /* Subtract next byte. (arg == 1) or next - * word (arg == 6 ?) - */ - dst_lsc_sbreg, /* Stack base register (frame pointer). Arg==0 */ - dst_lsc_0f, - dst_lsc_ranged, /* location is pc dependent */ - dst_lsc_11, - dst_lsc_12, - dst_lsc_13, - dst_lsc_14, - dst_lsc_15, - dst_lsc_16, - dst_lsc_17, - dst_lsc_18, - dst_lsc_19, - dst_lsc_1a, - dst_lsc_1b, - dst_lsc_1c, - dst_lsc_1d, - dst_lsc_1e, - dst_lsc_1f - } -dst_loc_string_code_t; - -/* If the following occurs after an addition/subtraction, that addition - * or subtraction should be multiplied by 256. It's a complete byte, not - * a code. - */ - -#define dst_multiply_256 ((char) 0x73) - -typedef struct - { - char code:5; - char arg:3; - } -dst_loc_header_t ALIGNED1; - -typedef union - { - dst_loc_header_t header; - char data; - } -dst_loc_entry_t ALIGNED1; - -#undef ALIGNED1 -#endif /* apollo_dst_h */ |