Initial revision

1 files changed, 297 insertions, 0 deletions

diff --git a/gdb/buildsym.h b/gdb/buildsym.h
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+++ b/gdb/buildsym.h
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+/* Build symbol tables in GDB's internal format.
+   Copyright 1986-1993, 1996-1999 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+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.  */
+
+#if !defined (BUILDSYM_H)
+#define BUILDSYM_H 1
+
+/* This module provides definitions used for creating and adding to
+   the symbol table.  These routines are called from various symbol-
+   file-reading routines.
+
+   They originated in dbxread.c of gdb-4.2, and were split out to
+   make xcoffread.c more maintainable by sharing code.
+
+   Variables declared in this file can be defined by #define-ing the
+   name EXTERN to null.  It is used to declare variables that are
+   normally extern, but which get defined in a single module using
+   this technique.  */
+
+#ifndef EXTERN
+#define	EXTERN extern
+#endif
+
+#define HASHSIZE 127		/* Size of things hashed via
+				   hashname() */
+
+/* Name of source file whose symbol data we are now processing.  This
+   comes from a symbol of type N_SO. */
+
+EXTERN char *last_source_file;
+
+/* Core address of start of text of current source file.  This too
+   comes from the N_SO symbol. */
+
+EXTERN CORE_ADDR last_source_start_addr;
+
+/* The list of sub-source-files within the current individual
+   compilation.  Each file gets its own symtab with its own linetable
+   and associated info, but they all share one blockvector.  */
+
+struct subfile
+  {
+    struct subfile *next;
+    char *name;
+    char *dirname;
+    struct linetable *line_vector;
+    int line_vector_length;
+    enum language language;
+    char *debugformat;
+  };
+
+EXTERN struct subfile *subfiles;
+
+EXTERN struct subfile *current_subfile;
+
+/* Global variable which, when set, indicates that we are processing a
+   .o file compiled with gcc */
+
+EXTERN unsigned char processing_gcc_compilation;
+
+/* When set, we are processing a .o file compiled by sun acc.  This is
+   misnamed; it refers to all stabs-in-elf implementations which use
+   N_UNDF the way Sun does, including Solaris gcc.  Hopefully all
+   stabs-in-elf implementations ever invented will choose to be
+   compatible.  */
+
+EXTERN unsigned char processing_acc_compilation;
+
+/* elz: added this flag to know when a block is compiled with HP
+   compilers (cc, aCC). This is necessary because of the macro
+   COERCE_FLOAT_TO_DOUBLE defined in tm_hppa.h, which causes a
+   coercion of float to double to always occur in parameter passing
+   for a function called by gdb (see the function value_arg_coerce in
+   valops.c). This is necessary only if the target was compiled with
+   gcc, not with HP compilers or with g++ */
+
+EXTERN unsigned char processing_hp_compilation;
+
+/* Count symbols as they are processed, for error messages.  */
+
+EXTERN unsigned int symnum;
+
+/* Record the symbols defined for each context in a list.  We don't
+   create a struct block for the context until we know how long to
+   make it.  */
+
+#define PENDINGSIZE 100
+
+struct pending
+  {
+    struct pending *next;
+    int nsyms;
+    struct symbol *symbol[PENDINGSIZE];
+  };
+
+/* Here are the three lists that symbols are put on.  */
+
+/* static at top level, and types */
+
+EXTERN struct pending *file_symbols;
+
+/* global functions and variables */
+
+EXTERN struct pending *global_symbols;
+
+/* everything local to lexical context */
+
+EXTERN struct pending *local_symbols;
+
+/* func params local to lexical  context */
+
+EXTERN struct pending *param_symbols;
+
+/* Stack representing unclosed lexical contexts (that will become
+   blocks, eventually).  */
+
+struct context_stack
+  {
+    /* Outer locals at the time we entered */
+
+    struct pending *locals;
+
+    /* Pending func params at the time we entered */
+
+    struct pending *params;
+
+    /* Pointer into blocklist as of entry */
+
+    struct pending_block *old_blocks;
+
+    /* Name of function, if any, defining context */
+
+    struct symbol *name;
+
+    /* PC where this context starts */
+
+    CORE_ADDR start_addr;
+
+    /* Temp slot for exception handling. */
+
+    CORE_ADDR end_addr;
+
+    /* For error-checking matching push/pop */
+
+    int depth;
+
+  };
+
+EXTERN struct context_stack *context_stack;
+
+/* Index of first unused entry in context stack.  */
+
+EXTERN int context_stack_depth;
+
+/* Currently allocated size of context stack.  */
+
+EXTERN int context_stack_size;
+
+/* Macro "function" for popping contexts from the stack.  Pushing is
+   done by a real function, push_context.  This returns a pointer to a
+   struct context_stack.  */
+
+#define	pop_context() (&context_stack[--context_stack_depth]);
+
+/* Nonzero if within a function (so symbols should be local, if
+   nothing says specifically).  */
+
+EXTERN int within_function;
+
+/* List of blocks already made (lexical contexts already closed).
+   This is used at the end to make the blockvector.  */
+
+struct pending_block
+  {
+    struct pending_block *next;
+    struct block *block;
+  };
+
+/* Pointer to the head of a linked list of symbol blocks which have
+   already been finalized (lexical contexts already closed) and which
+   are just waiting to be built into a blockvector when finalizing the
+   associated symtab. */
+
+EXTERN struct pending_block *pending_blocks;
+
+
+struct subfile_stack
+  {
+    struct subfile_stack *next;
+    char *name;
+  };
+
+EXTERN struct subfile_stack *subfile_stack;
+
+#define next_symbol_text(objfile) (*next_symbol_text_func)(objfile)
+
+/* Function to invoke get the next symbol.  Return the symbol name. */
+
+EXTERN char *(*next_symbol_text_func) (struct objfile *);
+
+/* Vector of types defined so far, indexed by their type numbers.
+   Used for both stabs and coff.  (In newer sun systems, dbx uses a
+   pair of numbers in parens, as in "(SUBFILENUM,NUMWITHINSUBFILE)".
+   Then these numbers must be translated through the type_translations
+   hash table to get the index into the type vector.)  */
+
+EXTERN struct type **type_vector;
+
+/* Number of elements allocated for type_vector currently.  */
+
+EXTERN int type_vector_length;
+
+/* Initial size of type vector.  Is realloc'd larger if needed, and
+   realloc'd down to the size actually used, when completed.  */
+
+#define	INITIAL_TYPE_VECTOR_LENGTH	160
+
+extern void add_symbol_to_list (struct symbol *symbol,
+				struct pending **listhead);
+
+extern struct symbol *find_symbol_in_list (struct pending *list,
+					   char *name, int length);
+
+extern void finish_block (struct symbol *symbol,
+			  struct pending **listhead,
+			  struct pending_block *old_blocks,
+			  CORE_ADDR start, CORE_ADDR end,
+			  struct objfile *objfile);
+
+extern void really_free_pendings (int foo);
+
+extern void start_subfile (char *name, char *dirname);
+
+extern void patch_subfile_names (struct subfile *subfile, char *name);
+
+extern void push_subfile (void);
+
+extern char *pop_subfile (void);
+
+extern struct symtab *end_symtab (CORE_ADDR end_addr,
+				  struct objfile *objfile, int section);
+
+/* Defined in stabsread.c.  */
+
+extern void scan_file_globals (struct objfile *objfile);
+
+extern void buildsym_new_init (void);
+
+extern void buildsym_init (void);
+
+extern struct context_stack *push_context (int desc, CORE_ADDR valu);
+
+extern void record_line (struct subfile *subfile, int line, CORE_ADDR pc);
+
+extern void start_symtab (char *name, char *dirname, CORE_ADDR start_addr);
+
+extern int hashname (char *name);
+
+extern void free_pending_blocks (void);
+
+/* FIXME: Note that this is used only in buildsym.c and dstread.c,
+   which should be fixed to not need direct access to
+   make_blockvector. */
+
+extern struct blockvector *make_blockvector (struct objfile *objfile);
+
+/* FIXME: Note that this is used only in buildsym.c and dstread.c,
+   which should be fixed to not need direct access to
+   record_pending_block. */
+
+extern void record_pending_block (struct objfile *objfile,
+				  struct block *block,
+				  struct pending_block *opblock);
+
+extern void record_debugformat (char *format);
+
+extern void merge_symbol_lists (struct pending **srclist,
+				struct pending **targetlist);
+
+#undef EXTERN
+
+#endif /* defined (BUILDSYM_H) */