#define SEEK_SET 0
#define SEEK_CUR 1
#endif
-
+\f
/* Each partial symbol table entry contains a pointer to private data for the
- read_symtab() function to use when expanding a partial symbol table entry
- to a full symbol table entry.
-
- For dbxread this structure contains the offset within the file symbol table
- of first local symbol for this file, and length (in bytes) of the section
- of the symbol table devoted to this file's symbols (actually, the section
- bracketed may contain more than just this file's symbols). It also contains
- further information needed to locate the symbols if they are in an ELF file.
+ sym_read function to use when expanding a partial symbol table entry
+ to a full symbol table entry. */
- If ldsymlen is 0, the only reason for this thing's existence is the
- dependency list. Nothing else will happen when it is read in. */
+struct symloc {
-#define LDSYMOFF(p) (((struct symloc *)((p)->read_symtab_private))->ldsymoff)
-#define LDSYMLEN(p) (((struct symloc *)((p)->read_symtab_private))->ldsymlen)
-#define SYMLOC(p) ((struct symloc *)((p)->read_symtab_private))
-#define SYMBOL_SIZE(p) (SYMLOC(p)->symbol_size)
-#define SYMBOL_OFFSET(p) (SYMLOC(p)->symbol_offset)
-#define STRING_OFFSET(p) (SYMLOC(p)->string_offset)
-#define FILE_STRING_OFFSET(p) (SYMLOC(p)->file_string_offset)
+ /* Offset within the file symbol table of first local symbol for this
+ file. */
-struct symloc {
int ldsymoff;
+
+ /* Length (in bytes) of the section of the symbol table devoted to
+ this file's symbols (actually, the section bracketed may contain
+ more than just this file's symbols). If ldsymlen is 0, the only
+ reason for this thing's existence is the dependency list. Nothing
+ else will happen when it is read in. */
+
int ldsymlen;
+
+ /* The size of each symbol in the symbol file (in external form). */
+
int symbol_size;
+
+ /* Further information needed to locate the symbols if they are in
+ an ELF file. */
+
int symbol_offset;
int string_offset;
int file_string_offset;
};
+#define LDSYMOFF(p) (((struct symloc *)((p)->read_symtab_private))->ldsymoff)
+#define LDSYMLEN(p) (((struct symloc *)((p)->read_symtab_private))->ldsymlen)
+#define SYMLOC(p) ((struct symloc *)((p)->read_symtab_private))
+#define SYMBOL_SIZE(p) (SYMLOC(p)->symbol_size)
+#define SYMBOL_OFFSET(p) (SYMLOC(p)->symbol_offset)
+#define STRING_OFFSET(p) (SYMLOC(p)->string_offset)
+#define FILE_STRING_OFFSET(p) (SYMLOC(p)->file_string_offset)
+
+\f
/* Macro to determine which symbols to ignore when reading the first symbol
of a file. Some machines override this definition. */
#ifndef IGNORE_SYMBOL
static int block_address_function_relative = 0;
\f
-/* This is the lowest text address we have yet encountered. */
+/* The lowest text address we have yet encountered. This is needed
+ because in an a.out file, there is no header field which tells us
+ what address the program is actually going to be loaded at, so we
+ need to make guesses based on the symbols (which *are* relocated to
+ reflect the address it will be loaded at). */
static CORE_ADDR lowest_text_address;
/* Complaints about the symbols we have encountered. */
static void
init_bincl_list PARAMS ((int, struct objfile *));
-static void
-init_psymbol_list PARAMS ((struct objfile *));
-
static char *
dbx_next_symbol_text PARAMS ((void));
perror_with_name (objfile->name);
/* If we are reinitializing, or if we have never loaded syms yet, init */
- if (mainline || objfile->global_psymbols.size == 0 || objfile->static_psymbols.size == 0)
- init_psymbol_list (objfile);
+ if (mainline
+ || objfile->global_psymbols.size == 0
+ || objfile->static_psymbols.size == 0)
+ init_psymbol_list (objfile, DBX_SYMCOUNT (objfile));
symbol_size = DBX_SYMBOL_SIZE (objfile);
symbol_table_offset = DBX_SYMTAB_OFFSET (objfile);
/* The address in memory of the string table of the object file we are
reading (which might not be the "main" object file, but might be a
- shared library or some other dynamically loaded thing). This is set
- by read_dbx_symtab when building psymtabs, and by read_ofile_symtab
- when building symtabs, and is used only by next_symbol_text. */
+ shared library or some other dynamically loaded thing). This is
+ set by read_dbx_symtab when building psymtabs, and by
+ read_ofile_symtab when building symtabs, and is used only by
+ next_symbol_text. FIXME: If that is true, we don't need it when
+ building psymtabs, right? */
static char *stringtab_global;
/* Refill the symbol table input buffer
+ file_string_table_offset;
}
\f
-/* Initializes storage for all of the partial symbols that will be
- created by read_dbx_symtab and subsidiaries. */
-
-static void
-init_psymbol_list (objfile)
- struct objfile *objfile;
-{
- /* Free any previously allocated psymbol lists. */
- if (objfile -> global_psymbols.list)
- mfree (objfile -> md, (PTR)objfile -> global_psymbols.list);
- if (objfile -> static_psymbols.list)
- mfree (objfile -> md, (PTR)objfile -> static_psymbols.list);
-
- /* Current best guess is that there are approximately a twentieth
- of the total symbols (in a debugging file) are global or static
- oriented symbols */
- objfile -> global_psymbols.size = DBX_SYMCOUNT (objfile) / 10;
- objfile -> static_psymbols.size = DBX_SYMCOUNT (objfile) / 10;
- objfile -> global_psymbols.next = objfile -> global_psymbols.list = (struct partial_symbol *)
- xmmalloc (objfile -> md, objfile -> global_psymbols.size * sizeof (struct partial_symbol));
- objfile -> static_psymbols.next = objfile -> static_psymbols.list = (struct partial_symbol *)
- xmmalloc (objfile -> md, objfile -> static_psymbols.size * sizeof (struct partial_symbol));
-}
-
/* Initialize the list of bincls to contain none and have some
allocated. */
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
/* Deal with the SunPRO 3.0 compiler which omits the address
from N_FUN symbols. */
- if (type == N_FUN && valu == 0)
+ if (type == N_FUN
+ && valu == ANOFFSET (section_offsets, SECT_OFF_TEXT))
{
struct minimal_symbol *msym;
char *p;
projects / deliverable / binutils-gdb.git / blobdiff