* inftarg.c (child_thread_alive): New function to see if a

[deliverable/binutils-gdb.git] / gdb / objfiles.h

diff --git a/gdb/objfiles.h b/gdb/objfiles.h
index 8a1fdc632fca5537753a228979932444e1262e3a..a4a1404d5c3f86fbfd400a5f7b56b00b5185aff0 100644 (file)
--- a/gdb/objfiles.h
+++ b/gdb/objfiles.h
@@ -1,5 +1,5 @@
 /* Definitions for symbol file management in GDB.
-   Copyright (C) 1992 Free Software Foundation, Inc.
+   Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
 
 This file is part of GDB.
 
@@ -23,7 +23,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 /* This structure maintains information on a per-objfile basis about the
    "entry point" of the objfile, and the scope within which the entry point
    exists.  It is possible that gdb will see more than one objfile that is
-   executable, each with it's own entry point.
+   executable, each with its own entry point.
 
    For example, for dynamically linked executables in SVR4, the dynamic linker
    code is contained within the shared C library, which is actually executable
@@ -123,7 +123,6 @@ struct entry_info
 
 };
 
-
 /* Sections in an objfile.
 
    It is strange that we have both this notion of "sections"
@@ -209,8 +208,8 @@ struct objfile
 
   struct partial_symtab *free_psymtabs;
 
-  /* The object file's BFD.  Can be null, in which case bfd_open (name) and
-     put the result here.  */
+  /* The object file's BFD.  Can be null if the objfile contains only
+     minimal symbols, e.g. the run time common symbols for SunOS4.  */
 
   bfd *obfd;
 
@@ -237,7 +236,7 @@ struct objfile
      by a "null symbol", one that has a NULL pointer for the name and a zero
      value for the address.  This makes it easy to walk through the array
      when passed a pointer to somewhere in the middle of it.  There is also
-     a count of the number of symbols, which does include the terminating
+     a count of the number of symbols, which does not include the terminating
      null symbol.  The array itself, as well as all the data that it points
      to, should be allocated on the symbol_obstack for this file. */
 
@@ -327,7 +326,7 @@ struct objfile
 /* Defines for the objfile flag word. */
 
 /* Gdb can arrange to allocate storage for all objects related to a
-   particular objfile in a designated section of it's address space,
+   particular objfile in a designated section of its address space,
    managed at a low level by mmap() and using a special version of
    malloc that handles malloc/free/realloc on top of the mmap() interface.
    This allows the "internal gdb state" for a particular objfile to be
@@ -344,11 +343,24 @@ struct objfile
 
 #define OBJF_SYMS      (1 << 1)        /* Have tried to read symbols */
 
+/* When an object file has its functions reordered (currently Irix-5.2
+   shared libraries exhibit this behaviour), we will need an expensive
+   algorithm to locate a partial symtab or symtab via an address.
+   To avoid this penalty for normal object files, we use this flag,
+   whose setting is determined upon symbol table read in.  */
+
+#define OBJF_REORDERED (2 << 1)        /* Functions are reordered */
+
 /* The object file that the main symbol table was loaded from (e.g. the
    argument to the "symbol-file" or "file" command).  */
 
 extern struct objfile *symfile_objfile;
 
+/* The object file that contains the runtime common minimal symbols
+   for SunOS4. Note that this objfile has no associated BFD.  */
+
+extern struct objfile *rt_common_objfile;
+
 /* When we need to allocate a new type, we need to know which type_obstack
    to allocate the type on, since there is one for each objfile.  The places
    where types are allocated are deeply buried in function call hierarchies
@@ -371,13 +383,19 @@ extern struct objfile *object_files;
 
 /* Declarations for functions defined in objfiles.c */
 
-extern struct objfile *allocate_objfile PARAMS ((bfd *, int));
+extern struct objfile *
+allocate_objfile PARAMS ((bfd *, int));
 
-int build_objfile_section_table PARAMS ((struct objfile *));
+extern int
+build_objfile_section_table PARAMS ((struct objfile *));
 
-extern void unlink_objfile PARAMS ((struct objfile *));
+extern void objfile_to_front PARAMS ((struct objfile *));
 
-extern void free_objfile PARAMS ((struct objfile *));
+extern void
+unlink_objfile PARAMS ((struct objfile *));
+
+extern void
+free_objfile PARAMS ((struct objfile *));
 
 extern void
 free_all_objfiles PARAMS ((void));
@@ -411,7 +429,6 @@ find_pc_section PARAMS((CORE_ADDR pc));
        (obj) != NULL? ((nxt)=(obj)->next,1) :0;        \
        (obj) = (nxt))
 
-
 /* Traverse all symtabs in one objfile.  */
 
 #define        ALL_OBJFILE_SYMTABS(objfile, s) \
@@ -427,7 +444,6 @@ find_pc_section PARAMS((CORE_ADDR pc));
 #define        ALL_OBJFILE_MSYMBOLS(objfile, m) \
     for ((m) = (objfile) -> msymbols; SYMBOL_NAME(m) != NULL; (m)++)
 
-
 /* Traverse all symtabs in all objfiles.  */
 
 #define        ALL_SYMTABS(objfile, s) \