-/* Read AIXcoff symbol tables and convert to internal format, for GDB.
- Copyright (C) 1986-1991 Free Software Foundation, Inc.
+/* Read AIX xcoff symbol tables and convert to internal format, for GDB.
+ Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992
+ Free Software Foundation, Inc.
Derived from coffread.c, dbxread.c, and a lot of hacking.
Contributed by IBM Corporation.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <stdio.h>
#include "defs.h"
#include "bfd.h"
-#ifdef IBM6000
-/* Native only: Need struct tbtable in <sys/debug.h>. */
+#if defined(IBM6000_HOST) && defined(IBM6000_TARGET)
+/* Native only: Need struct tbtable in <sys/debug.h> from host, and
+ need xcoff_add_toc_to_loadinfo in rs6000-tdep.c from target. */
-/* AIX COFF names have a preceeding dot `.' */
+/* AIX XCOFF names have a preceeding dot `.' */
#define NAMES_HAVE_DOT 1
#include <sys/types.h>
#include <sys/file.h>
#endif
#include <sys/stat.h>
-/*#include <linenum.h>*/
#include <sys/debug.h>
#include "symtab.h"
#include "gdbtypes.h"
#include "symfile.h"
+#include "objfiles.h"
#include "buildsym.h"
+#include "stabsread.h"
+#include "gdb-stabs.h"
#include "coff/internal.h" /* FIXME, internal data from BFD */
#include "libcoff.h" /* FIXME, internal data from BFD */
#include "coff/rs6000.h" /* FIXME, raw file-format guts of xcoff */
+
+/* Define this if you want gdb use the old xcoff symbol processing. This
+ way it won't use common `define_symbol()' function and Sun dbx stab
+ string grammar. And likely it won't be able to do G++ debugging. */
+
+/* #define NO_DEFINE_SYMBOL 1 */
+
+/* Define this if you want gdb to ignore typdef stabs. This was needed for
+ one of Transarc, to reduce the size of the symbol table. Types won't be
+ recognized, but tag names will be. */
+
+/* #define NO_TYPEDEFS 1 */
+
/* Simplified internal version of coff symbol table information */
struct coff_symbol {
#define INITIAL_STABVECTOR_LENGTH 40
-struct pending_stabs *global_stabs;
-
-
/* Nonzero if within a function (so symbols should be local,
if nothing says specifically). */
enter_line_range PARAMS ((struct subfile *, unsigned, unsigned,
CORE_ADDR, CORE_ADDR, unsigned *));
-static void
-aixcoff_symfile_read PARAMS ((struct sym_fns *, CORE_ADDR, int));
-
static void
free_debugsection PARAMS ((void));
init_stringtab PARAMS ((bfd *, long, struct objfile *));
static void
-aixcoff_symfile_init PARAMS ((struct sym_fns *));
+xcoff_symfile_init PARAMS ((struct objfile *));
static void
-aixcoff_new_init PARAMS ((void));
+xcoff_new_init PARAMS ((struct objfile *));
+
+#ifdef __STDC__
+struct section_offset;
+#endif
+
+static void
+xcoff_symfile_read PARAMS ((struct objfile *, struct section_offset *, int));
+
+static void
+xcoff_symfile_finish PARAMS ((struct objfile *));
+
+static struct section_offsets *
+xcoff_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
static int
init_lineno PARAMS ((bfd *, long, int));
struct symbol *sym = find_symbol_in_list (symbols, name, pp-name);
if (!sym) {
;
- /* printf ("ERROR! stab symbol not found!\n"); /* FIXME */
+ /* printf ("ERROR! stab symbol not found!\n"); */ /* FIXME */
/* The above is a false alarm. There are cases the we can have
a stab, without its symbol. xlc generates this for the extern
definitions in inner blocks. */
record_include_begin (cs)
struct coff_symbol *cs;
{
- /* In aixcoff, we assume include files cannot be nested (not in .c file
+ /* In xcoff, we assume include files cannot be nested (not in .c files
of course, but in corresponding .s files.) */
if (inclDepth)
- fatal ("aix internal: pending include file exists.");
+ fatal ("xcoff internal: pending include file exists.");
++inclDepth;
InclTable *pTbl;
if (inclDepth == 0)
- fatal ("aix internal: Mismatch C_BINCL/C_EINCL pair found.");
+ fatal ("xcoff internal: Mismatch C_BINCL/C_EINCL pair found.");
pTbl = &inclTable [inclIndx];
pTbl->end = cs->c_value;
}
-static void
-dumpIncludeChain ()
-{
- int ii;
- if (inclTable && inclLength)
- for (ii=0; ii < inclIndx; ++ii)
- printf ("name: %s, begin: 0x%x, end: 0x%x\n",
- inclTable[ii].name, inclTable[ii].begin, inclTable[ii].end);
-}
-
-
/* given the start and end addresses of a compilation unit (or a csect, at times)
process its lines and create appropriate line vectors. */
first_fun_line_offset = 0;
if (inclIndx == 0)
+ /* All source lines were in the main source file. None in include files. */
+
enter_line_range (&main_subfile, offset, 0, start, end,
&main_source_baseline);
current_subfile->line_vector_length =
current_subfile->line_vector->nitems;
-
+ }
/* Now, process included files' line numbers. */
start_subfile (pop_subfile (), (char*)0);
}
}
- }
- else
- /* I am not sure this logic is correct. There might be no lines in the
- main file, whereas there are some in included ones. FIXMEibm */
- current_subfile->line_vector = NULL;
return_after_cleanup:
/* keep reading blocks of data from the text section, until finding a zero
word and a traceback table. */
- while (bfd_get_section_contents (abfd, textsec, buffer,
- (file_ptr)(functionstart + bytesread),
+ while (
bufferbytes = (
(TBTABLE_BUFSIZ < (textsec->_raw_size - functionstart - bytesread)) ?
- TBTABLE_BUFSIZ : (textsec->_raw_size - functionstart - bytesread))))
+ TBTABLE_BUFSIZ : (textsec->_raw_size - functionstart - bytesread))
+
+ && bfd_get_section_contents (abfd, textsec, buffer,
+ (file_ptr)(functionstart + bytesread), bufferbytes))
{
bytesread += bufferbytes;
pinsn = (int*) buffer;
if (ALLOCED) \
namestr = (NAME) + 1; \
else { \
- namestr = obstack_copy0 (&objfile->symbol_obstack, (NAME) + 1, strlen ((NAME)+1)); \
+ (NAME) = namestr = \
+ obstack_copy0 (&objfile->symbol_obstack, (NAME) + 1, strlen ((NAME)+1)); \
(ALLOCED) = 1; \
} \
prim_record_minimal_symbol (namestr, (ADDR), (TYPE)); \
}
-/* aixcoff has static blocks marked in `.bs', `.es' pairs. They cannot be
+/* xcoff has static blocks marked in `.bs', `.es' pairs. They cannot be
nested. At any given time, a symbol can only be in one static block.
This is the base address of current static block, zero if non exists. */
int next_file_symnum = -1;
int just_started = 1;
int depth = 0;
+ int toc_offset = 0; /* toc offset value in data section. */
int val;
int fcn_last_line;
int fcn_start_addr;
long fcn_line_offset;
size_t size;
+ struct coff_symbol fcn_stab_saved;
+
/* fcn_cs_saved is global because process_xcoff_symbol needs it. */
union internal_auxent fcn_aux_saved;
struct type *fcn_type_saved = NULL;
N_BTSHFT = coff_data (abfd)->local_n_btshft;
local_symesz = coff_data (abfd)->local_symesz;
- last_source_file = 0;
+ last_source_file = NULL;
last_csect_name = 0;
last_csect_val = 0;
misc_func_recorded = 0;
+ start_stabs ();
start_symtab (filestring, (char *)NULL, file_start_addr);
symnum = 0;
first_object_file_end = 0;
/* READ_ONE_SYMBOL (symbol, cs, symname_alloced); */
/* read one symbol into `cs' structure. After processing the whole symbol
table, only string table will be kept in memory, symbol table and debug
- section of aixcoff will be freed. Thus we can mark symbols with names
+ section of xcoff will be freed. Thus we can mark symbols with names
in string table as `alloced'. */
{
int ii;
symname_alloced = 1;
}
cs->c_value = symbol->n_value;
- cs->c_sclass = symbol->n_sclass & 0xff;
+ /* n_sclass is signed (FIXME), so we had better not mask off any
+ high bits it contains, since the values we will be comparing
+ it to are also signed (FIXME). Defined in <coff/internal.h>.
+ At this point (3Jun92, gnu@cygnus.com) I think the fix is to
+ make the fields and values unsigned chars, but changing the next
+ line is a simple patch late in the release cycle, for now. */
+ cs->c_sclass = symbol->n_sclass /* & 0xff */;
cs->c_secnum = symbol->n_scnum;
cs->c_type = (unsigned)symbol->n_type;
if (cs->c_symnum == next_file_symnum && cs->c_sclass != C_FILE) {
if (last_source_file)
- end_symtab (cur_src_end_addr, 1, 0, objfile);
+ {
+ end_symtab (cur_src_end_addr, 1, 0, objfile);
+ end_stabs ();
+ }
+ start_stabs ();
start_symtab ("_globals_", (char *)NULL, (CORE_ADDR)0);
cur_src_end_addr = first_object_file_end;
/* done with all files, everything from here on is globals */
complete_symtab (filestring, file_start_addr);
cur_src_end_addr = file_end_addr;
end_symtab (file_end_addr, 1, 0, objfile);
+ end_stabs ();
+ start_stabs ();
start_symtab ((char *)NULL, (char *)NULL, (CORE_ADDR)0);
}
uninitialized data will show up as XTY_CM/XMC_RW pair. */
case XMC_TC0:
-#ifdef XCOFF_ADD_TOC_TO_LOADINFO
- XCOFF_ADD_TOC_TO_LOADINFO (cs->c_value);
-#endif
- /* fall down to default case. */
+ if (toc_offset)
+ warning ("More than one xmc_tc0 symbol found.");
+ toc_offset = cs->c_value;
+ continue;
case XMC_TC : /* ignore toc entries */
default : /* any other XMC_XXX */
parmvalue += sizeof (float);
}
}
- else { /* fixed parm */
- ADD_PARM_TO_PENDING
- (parm, parmvalue, builtin_type_int, local_symbols);
+ else { /* fixed parm, use (int*) for hex rep. */
+ ADD_PARM_TO_PENDING (parm, parmvalue,
+ lookup_pointer_type (builtin_type_int),
+ local_symbols);
parmvalue += sizeof (int);
}
mask = mask >> 1;
}
/* shared library function trampoline code entry point. */
else if (CSECT_SCLAS (main_aux) == XMC_GL) {
- RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value, mst_text,
+
+ /* record trampoline code entries as mst_unknown symbol. When we
+ lookup mst symbols, we will choose mst_text over mst_unknown. */
+
+#if 1
+ /* After the implementation of incremental loading of shared
+ libraries, we don't want to access trampoline entries. This
+ approach has a consequence of the necessity to bring the whole
+ shared library at first, in order do anything with it (putting
+ breakpoints, using malloc, etc). On the other side, this is
+ consistient with gdb's behaviour on a SUN platform. */
+
+ /* Trying to prefer *real* function entry over its trampoline,
+ by assigning `mst_unknown' type to trampoline entries fails.
+ Gdb treats those entries as chars. FIXME. */
+
+ /* Recording this entry is necessary. Single stepping relies on
+ this vector to get an idea about function address boundaries. */
+
+ prim_record_minimal_symbol (0, cs->c_value, mst_unknown);
+#else
+
+ /* record trampoline code entries as mst_unknown symbol. When we
+ lookup mst symbols, we will choose mst_text over mst_unknown. */
+
+ RECORD_MINIMAL_SYMBOL (cs->c_name, cs->c_value, mst_unknown,
symname_alloced);
+#endif
continue;
}
break;
/* complete symbol table for last object file containing
debugging information. */
- /* Whether or not there was a csect in the previous file, we have
- to call `end_symtab' and `start_symtab' to reset type_vector,
+ /* Whether or not there was a csect in the previous file, we have to call
+ `end_stabs' and `start_stabs' to reset type_vector,
line_vector, etc. structures. */
complete_symtab (filestring, file_start_addr);
cur_src_end_addr = file_end_addr;
end_symtab (file_end_addr, 1, 0, objfile);
+ end_stabs ();
+ start_stabs ();
start_symtab (cs->c_name, (char *)NULL, (CORE_ADDR)0);
last_csect_name = 0;
case C_FUN:
+#ifdef NO_DEFINE_SYMBOL
/* For a function stab, just save its type in `fcn_type_saved', and leave
it for the `.bf' processing. */
{
fcn_type_saved = lookup_function_type (read_type (&pp, objfile));
}
+#else
+ fcn_stab_saved = *cs;
+#endif
break;
mark_first_line (fcn_line_offset, cs->c_symnum);
new = push_context (0, fcn_start_addr);
+
+#ifdef NO_DEFINE_SYMBOL
new->name = process_xcoff_symbol (&fcn_cs_saved, objfile);
/* Between a function symbol and `.bf', there always will be a function
stab. We save function type when processing that stab. */
- if (fcn_type_saved == NULL)
- fatal ("Unknown function type");
-
- SYMBOL_TYPE (new->name) = fcn_type_saved;
- fcn_type_saved = NULL;
+ if (fcn_type_saved == NULL) {
+ printf ("Unknown function type: symbol 0x%x\n", cs->c_symnum);
+ SYMBOL_TYPE (new->name) = lookup_function_type (builtin_type_int);
+ }
+ else {
+ SYMBOL_TYPE (new->name) = fcn_type_saved;
+ fcn_type_saved = NULL;
+ }
+#else
+ new->name = define_symbol
+ (fcn_cs_saved.c_value, fcn_stab_saved.c_name, 0, 0, objfile);
+#endif
}
else if (strcmp (cs->c_name, ".ef") == 0) {
break;
default :
- (void) process_xcoff_symbol (cs, objfile);
+ process_xcoff_symbol (cs, objfile);
break;
}
} /* while */
if (last_source_file)
- end_symtab (cur_src_end_addr, 1, 0, objfile);
+ {
+ end_symtab (cur_src_end_addr, 1, 0, objfile);
+ end_stabs ();
+ }
free (symtbl);
current_objfile = NULL;
+
+ /* Record the toc offset value of this symbol table into ldinfo structure.
+ If no XMC_TC0 is found, toc_offset should be zero. Another place to obtain
+ this information would be file auxiliary header. */
+
+ xcoff_add_toc_to_loadinfo (toc_offset);
}
#define SYMBOL_DUP(SYMBOL1, SYMBOL2) \
struct type *ttype;
char *name, *pp, *qq;
int struct_and_type_combined;
+ int nameless;
name = cs->c_name;
if (name[0] == '.')
#endif
case C_DECL: /* a type decleration?? */
+
+#if defined(NO_TYPEDEFS) || defined(NO_DEFINE_SYMBOL)
qq = (char*) strchr (name, ':');
if (!qq) /* skip if there is no ':' */
return NULL;
+ nameless = (qq == name);
+
struct_and_type_combined = (qq[1] == 'T' && qq[2] == 't');
pp = qq + (struct_and_type_combined ? 3 : 2);
- ttype = SYMBOL_TYPE (sym) = read_type (&pp, objfile);
+
+
+ /* To handle GNU C++ typename abbreviation, we need to be able to fill
+ in a type's name as soon as space for that type is allocated. */
+
+ if (struct_and_type_combined && name != qq) {
+
+ int typenums[2];
+ struct type *tmp_type;
+ char *tmp_pp = pp;
+
+ read_type_number (&tmp_pp, typenums);
+ tmp_type = dbx_alloc_type (typenums, objfile);
+
+ if (tmp_type && !TYPE_NAME (tmp_type) && !nameless)
+ TYPE_NAME (tmp_type) = SYMBOL_NAME (sym) =
+ obsavestring (name, qq-name,
+ &objfile->symbol_obstack);
+ }
+ ttype = SYMBOL_TYPE (sym) = read_type (&pp);
+
+ /* if there is no name for this typedef, you don't have to keep its
+ symbol, since nobody could ask for it. Otherwise, build a symbol
+ and add it into symbol_list. */
+
+ if (nameless)
+ return;
+
+#ifdef NO_TYPEDEFS
+ /* Transarc wants to eliminate type definitions from the symbol table.
+ Limited debugging capabilities, but faster symbol table processing
+ and less memory usage. Note that tag definitions (starting with
+ 'T') will remain intact. */
+
+ if (qq[1] != 'T' && (!TYPE_NAME (ttype) || *(TYPE_NAME (ttype)) == '\0')) {
+
+ if (SYMBOL_NAME (sym))
+ TYPE_NAME (ttype) = SYMBOL_NAME (sym);
+ else
+ TYPE_NAME (ttype) = obsavestring (name, qq-name);
+
+ return;
+ }
+
+#endif /* !NO_TYPEDEFS */
/* read_type() will return null if type (or tag) definition was
unnnecessarily duplicated. Also, if the symbol doesn't have a name,
there is no need to keep it in symbol table. */
+ /* The above argument no longer valid. read_type() never returns NULL. */
- if (!ttype || name == qq)
+ if (!ttype)
return NULL;
+ /* if there is no name for this typedef, you don't have to keep its
+ symbol, since nobody could ask for it. Otherwise, build a symbol
+ and add it into symbol_list. */
+
if (qq[1] == 'T')
- SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE;
+ SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE;
else if (qq[1] == 't')
- SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
+ SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
else {
- printf ("ERROR: Unrecognized stab string.\n");
- return NULL;
+ warning ("Unrecognized stab string.\n");
+ return NULL;
}
SYMBOL_CLASS (sym) = LOC_TYPEDEF;
- SYMBOL_NAME (sym) = obsavestring (name, qq-name, &objfile->symbol_obstack);
-
- if (struct_and_type_combined)
- TYPE_NAME (ttype) = SYMBOL_NAME (sym);
-
- else if (SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE)
- TYPE_NAME (ttype) = concat (
- TYPE_CODE (ttype) == TYPE_CODE_UNION ? "union " :
- TYPE_CODE (ttype) == TYPE_CODE_STRUCT? "struct " : "enum ",
- SYMBOL_NAME (sym), NULL);
+ if (!SYMBOL_NAME (sym))
+ SYMBOL_NAME (sym) = obsavestring (name, qq-name);
SYMBOL_DUP (sym, sym2);
add_symbol_to_list
- (sym2, within_function ? &local_symbols : &file_symbols);
+ (sym2, within_function ? &local_symbols : &file_symbols);
+
+ /* For a combination of struct and type, add one more symbol
+ for the type. */
- /* For a combination of struct and type, add one more symbol for the type. */
if (struct_and_type_combined) {
- SYMBOL_DUP (sym, sym2);
- SYMBOL_NAMESPACE (sym2) = VAR_NAMESPACE;
- add_symbol_to_list
- (sym2, within_function ? &local_symbols : &file_symbols);
+ SYMBOL_DUP (sym, sym2);
+ SYMBOL_NAMESPACE (sym2) = VAR_NAMESPACE;
+ add_symbol_to_list
+ (sym2, within_function ? &local_symbols : &file_symbols);
+ }
+
+ /* assign a name to the type node. */
+
+ if (!TYPE_NAME (ttype) || *(TYPE_NAME (ttype)) == '\0') {
+ if (struct_and_type_combined)
+ TYPE_NAME (ttype) = SYMBOL_NAME (sym);
+ else if (qq[1] == 'T') /* struct namespace */
+ TYPE_NAME (ttype) = concat (
+ TYPE_CODE (ttype) == TYPE_CODE_UNION ? "union " :
+ TYPE_CODE (ttype) == TYPE_CODE_STRUCT? "struct " : "enum ",
+ SYMBOL_NAME (sym), NULL);
}
break;
+#else /* !NO_DEFINE_SYMBOL */
+ return define_symbol (cs->c_value, cs->c_name, 0, 0, objfile);
+#endif
+
case C_GSYM:
add_stab_to_list (name, &global_stabs);
break;
case C_PSYM:
case C_RPSYM:
+
+#ifdef NO_DEFINE_SYMBOL
if (*name == ':' || (pp = (char *) strchr (name, ':')) == NULL)
return NULL;
SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack);
SYMBOL_DUP (sym, sym2);
add_symbol_to_list (sym2, &local_symbols);
break;
+#else
+ sym = define_symbol (cs->c_value, cs->c_name, 0, 0, objfile);
+ SYMBOL_CLASS (sym) = (cs->c_sclass == C_PSYM) ? LOC_ARG : LOC_REGPARM;
+ return sym;
+#endif
case C_STSYM:
+
+#ifdef NO_DEFINE_SYMBOL
if (*name == ':' || (pp = (char *) strchr (name, ':')) == NULL)
return NULL;
SYMBOL_NAME (sym) = obsavestring (name, pp-name, &objfile -> symbol_obstack);
add_symbol_to_list
(sym2, within_function ? &local_symbols : &file_symbols);
break;
+#else
+ /* If we are going to use Sun dbx's define_symbol(), we need to
+ massage our stab string a little. Change 'V' type to 'S' to be
+ comparible with Sun. */
+
+ if (*name == ':' || (pp = (char *) index (name, ':')) == NULL)
+ return NULL;
+
+ ++pp;
+ if (*pp == 'V') *pp = 'S';
+ sym = define_symbol (cs->c_value, cs->c_name, 0, 0, objfile);
+ SYMBOL_VALUE (sym) += static_block_base;
+ return sym;
+#endif
case C_LSYM:
if (*name == ':' || (pp = (char *) strchr (name, ':')) == NULL)
break;
case C_RSYM:
+
+#ifdef NO_DEFINE_SYMBOL
pp = (char*) strchr (name, ':');
SYMBOL_CLASS (sym) = LOC_REGISTER;
SYMBOL_VALUE (sym) = STAB_REG_TO_REGNUM (cs->c_value);
SYMBOL_DUP (sym, sym2);
add_symbol_to_list (sym2, &local_symbols);
break;
+#else
+ if (pp) {
+ sym = define_symbol (cs->c_value, cs->c_name, 0, 0, objfile);
+ return sym;
+ }
+ else {
+ warning ("A non-stab C_RSYM needs special handling.");
+ return NULL;
+ }
+#endif
default :
- printf ("ERROR: Unexpected storage class: %d.\n", cs->c_sclass);
+ warning ("Unexpected storage class: %d.", cs->c_sclass);
return NULL;
}
}
(a \ at the end of the text of a name)
call this function to get the continuation. */
/* So far, I haven't seen this happenning xlc output. I doubt we'll need this
- for aixcoff. */
+ for xcoff. */
#undef next_symbol_text
#define next_symbol_text() \
}
}
-#if 0 /* Seems to be unused, don't bother converting from old misc function
- vector usage to new minimal symbol tables. FIXME: Delete this? */
-
-/* if we now nothing about a function but its address, make a function symbol
- out of it with the limited knowladge you have. This will be used when
- somebody refers to a function, which doesn't exist in the symbol table,
- but is in the minimal symbol table. */
-
-struct symbol *
-build_function_symbol (ind, objfile)
- int ind;
+static void
+xcoff_new_init (objfile)
struct objfile *objfile;
{
- struct symbol *sym =
- (struct symbol *) obstack_alloc (&objfile->symbol_obstack, sizeof (struct symbol));
- SYMBOL_NAME (sym) = misc_function_vector[ind].name;
- /* SYMBOL_VALUE (sym) = misc_function_vector[ind].address; */
- SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
- SYMBOL_CLASS (sym) = LOC_BLOCK;
- SYMBOL_TYPE (sym) = lookup_function_type (lookup_fundamental_type (current_objfile, FT_INTEGER));
- SYMBOL_BLOCK_VALUE (sym) = (struct block *)
- obstack_alloc (&objfile->symbol_obstack, sizeof (struct block));
- BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) = misc_function_vector[ind].address;
- return sym;
}
-#endif
-
static void
-aixcoff_new_init ()
+xcoff_symfile_init (objfile)
+ struct objfile *objfile;
{
- /* This routine is executed once per executable. We should start with a
- fresh include table per executable. */
+ bfd *abfd = objfile->obfd;
- if (inclTable) {
- free (inclTable);
- inclTable = NULL;
- }
- inclIndx = inclLength = inclDepth = NULL;
+ /* Allocate struct to keep track of the symfile */
+ objfile -> sym_private = xmmalloc (objfile -> md,
+ sizeof (struct coff_symfile_info));
+ init_entry_point_info (objfile);
}
+/* Perform any local cleanups required when we are done with a particular
+ objfile. I.E, we are in the process of discarding all symbol information
+ for an objfile, freeing up all memory held for it, and unlinking the
+ objfile struct from the global list of known objfiles. */
+
static void
-aixcoff_symfile_init (sf)
-struct sym_fns *sf;
+xcoff_symfile_finish (objfile)
+ struct objfile *objfile;
{
- bfd *abfd = sf->sym_bfd;
+ if (objfile -> sym_private != NULL)
+ {
+ mfree (objfile -> md, objfile -> sym_private);
+ }
- /* Allocate struct to keep track of the symfile */
- /* FIXME memory leak */
- sf->sym_private = xmalloc(sizeof (struct coff_symfile_info));
-
- /*
- * Save startup file's range of PC addresses to help
- * blockframe.c decide where the bottom of the stack is.
- */
- if (bfd_get_file_flags(abfd) & EXEC_P) {
- entry_point = bfd_get_start_address(abfd);
- } else {
- entry_point = ~0;
- /* set the startup file to be an empty range. */
- startup_file_start = 0;
- startup_file_end = 0;
- }
+ /* Start with a fresh include table for the next objfile. */
+
+ if (inclTable)
+ {
+ free (inclTable);
+ inclTable = NULL;
+ }
+ inclIndx = inclLength = inclDepth = 0;
}
}
-/* aixcoff version of symbol file read. */
+/* xcoff version of symbol file read. */
static void
-aixcoff_symfile_read (sf, addr, mainline)
- struct sym_fns *sf;
- CORE_ADDR addr;
+xcoff_symfile_read (objfile, section_offset, mainline)
+ struct objfile *objfile;
+ struct section_offset *section_offset;
int mainline;
{
int num_symbols; /* # of symbols */
int stringtab_offset; /* string table file offsets */
int val;
bfd *abfd;
- struct coff_symfile_info *info = (void*) sf->sym_private;
+ struct coff_symfile_info *info;
char *name;
- symfile_bfd = abfd = sf->objfile->obfd;
- name = sf->objfile->name;
+ info = (struct coff_symfile_info *) objfile -> sym_private;
+ symfile_bfd = abfd = objfile->obfd;
+ name = objfile->name;
num_symbols = bfd_get_symcount (abfd); /* # of symbols */
symtab_offset = obj_sym_filepos (abfd); /* symbol table file offset */
error("\"%s\": error reading line numbers\n", name);
}
- val = init_stringtab(abfd, stringtab_offset, sf->objfile);
+ val = init_stringtab(abfd, stringtab_offset, objfile);
if (val < 0) {
error ("\"%s\": can't get string table", name);
}
init_minimal_symbol_collection ();
make_cleanup (discard_minimal_symbols, 0);
-#ifdef XCOFF_INIT_LOADINFO
+ /* Initialize load info structure. */
if (mainline)
- XCOFF_INIT_LOADINFO ();
-#endif
+ xcoff_init_loadinfo ();
/* Now that the executable file is positioned at symbol table,
process it and define symbols accordingly. */
- read_xcoff_symtab(sf->objfile, num_symbols);
+ read_xcoff_symtab(objfile, num_symbols);
- make_cleanup (free_debugsection, 0);
+ /* Free debug section. */
+ free_debugsection ();
/* Sort symbols alphabetically within each block. */
sort_syms ();
/* Install any minimal symbols that have been collected as the current
minimal symbols for this objfile. */
- install_minimal_symbols (sf -> objfile);
+ install_minimal_symbols (objfile);
/* Make a default for file to list. */
select_source_symtab (0);
}
-/* Register our ability to parse symbols for aixcoff BFD files. */
+/* XCOFF-specific parsing routine for section offsets.
+ Plain and simple for now. */
-static struct sym_fns aixcoff_sym_fns =
+static
+struct section_offsets *
+xcoff_symfile_offsets (objfile, addr)
+ struct objfile *objfile;
+ CORE_ADDR addr;
{
- "aixcoff-rs6000", 15,
- aixcoff_new_init, aixcoff_symfile_init,
- aixcoff_symfile_read,
+ struct section_offsets *section_offsets;
+ int i;
+
+ section_offsets = (struct section_offsets *)
+ obstack_alloc (&objfile -> psymbol_obstack,
+ sizeof (struct section_offsets) +
+ sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
+
+ for (i = 0; i < SECT_OFF_MAX; i++)
+ ANOFFSET (section_offsets, i) = addr;
+
+ return section_offsets;
+}
+/* Register our ability to parse symbols for xcoff BFD files. */
+
+static struct sym_fns xcoff_sym_fns =
+{
+ "aixcoff-rs6000", /* sym_name: name or name prefix of BFD target type */
+ 15, /* sym_namelen: number of significant sym_name chars */
+ xcoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
+ xcoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
+ xcoff_symfile_read, /* sym_read: read a symbol file into symtab */
+ xcoff_symfile_finish, /* sym_finish: finished with file, cleanup */
+ xcoff_symfile_offsets, /* sym_offsets: xlate offsets ext->int form */
+ NULL /* next: pointer to next struct sym_fns */
};
void
_initialize_xcoffread ()
{
- add_symtab_fns(&aixcoff_sym_fns);
+ add_symtab_fns(&xcoff_sym_fns);
}
-#else /* IBM6000 */
+
+#else /* IBM6000_HOST */
struct type *
-builtin_type (pp)
-char **pp;
+builtin_type (ignore)
+char **ignore;
{
- fatal ("internals eror: builtin_type called!");
+ fatal ("GDB internal error: builtin_type called on non-RS/6000!");
}
-#endif /* IBM6000 */
+#endif /* IBM6000_HOST */
projects / deliverable / binutils-gdb.git / blobdiff