hp-symtab.h

基于4个mips核的noc设计

};

/* 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 */