+/* $LINES$ 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;
+
projects / deliverable / binutils-gdb.git / blobdiff