#include "defs.h"
#include "bfd.h"
-#include <syms.h>
+#include "som/aout.h"
#include "symtab.h"
#include "symfile.h"
#include "objfiles.h"
int val, dynamic;
char *stringtab;
asection *shlib_info;
- struct symbol_dictionary_record *buf, *bufp, *endbufp;
+ struct som_external_symbol_dictionary_record *buf, *bufp, *endbufp;
char *symname;
- CONST int symsize = sizeof (struct symbol_dictionary_record);
- CORE_ADDR text_offset, data_offset;
+ CONST int symsize = sizeof (struct som_external_symbol_dictionary_record);
- text_offset = ANOFFSET (section_offsets, 0);
- data_offset = ANOFFSET (section_offsets, 1);
+#define text_offset ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))
+#define data_offset ANOFFSET (section_offsets, SECT_OFF_DATA (objfile))
number_of_symbols = bfd_get_symcount (abfd);
for (bufp = buf; bufp < endbufp; ++bufp)
{
enum minimal_symbol_type ms_type;
+ unsigned int flags = bfd_getb32 (bufp->flags);
+ unsigned int symbol_type
+ = (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
+ unsigned int symbol_scope
+ = (flags >> SOM_SYMBOL_SCOPE_SH) & SOM_SYMBOL_SCOPE_MASK;
+ CORE_ADDR symbol_value = bfd_getb32 (bufp->symbol_value);
+ asection *section = NULL;
QUIT;
- switch (bufp->symbol_scope)
+ /* Compute the section. */
+ switch (symbol_scope)
+ {
+ case SS_EXTERNAL:
+ if (symbol_type != ST_STORAGE)
+ section = bfd_und_section_ptr;
+ else
+ section = bfd_com_section_ptr;
+ break;
+
+ case SS_UNSAT:
+ if (symbol_type != ST_STORAGE)
+ section = bfd_und_section_ptr;
+ else
+ section = bfd_com_section_ptr;
+ break;
+
+ case SS_UNIVERSAL:
+ section = bfd_section_from_som_symbol (abfd, bufp);
+ break;
+
+ case SS_LOCAL:
+ section = bfd_section_from_som_symbol (abfd, bufp);
+ break;
+ }
+
+ switch (symbol_scope)
{
case SS_UNIVERSAL:
case SS_EXTERNAL:
- switch (bufp->symbol_type)
+ switch (symbol_type)
{
case ST_SYM_EXT:
case ST_ARG_EXT:
case ST_PRI_PROG:
case ST_SEC_PROG:
case ST_MILLICODE:
- symname = bufp->name.n_strx + stringtab;
+ symname = bfd_getb32 (bufp->name) + stringtab;
ms_type = mst_text;
- bufp->symbol_value += text_offset;
- bufp->symbol_value = gdbarch_addr_bits_remove
- (gdbarch, bufp->symbol_value);
+ symbol_value += text_offset;
+ symbol_value = gdbarch_addr_bits_remove (gdbarch, symbol_value);
break;
case ST_ENTRY:
- symname = bufp->name.n_strx + stringtab;
+ symname = bfd_getb32 (bufp->name) + stringtab;
/* For a dynamic executable, ST_ENTRY symbols are
the stubs, while the ST_CODE symbol is the real
function. */
ms_type = mst_solib_trampoline;
else
ms_type = mst_text;
- bufp->symbol_value += text_offset;
- bufp->symbol_value = gdbarch_addr_bits_remove
- (gdbarch, bufp->symbol_value);
+ symbol_value += text_offset;
+ symbol_value = gdbarch_addr_bits_remove (gdbarch, symbol_value);
break;
case ST_STUB:
- symname = bufp->name.n_strx + stringtab;
+ symname = bfd_getb32 (bufp->name) + stringtab;
ms_type = mst_solib_trampoline;
- bufp->symbol_value += text_offset;
- bufp->symbol_value = gdbarch_addr_bits_remove
- (gdbarch, bufp->symbol_value);
+ symbol_value += text_offset;
+ symbol_value = gdbarch_addr_bits_remove (gdbarch, symbol_value);
break;
case ST_DATA:
- symname = bufp->name.n_strx + stringtab;
- bufp->symbol_value += data_offset;
+ symname = bfd_getb32 (bufp->name) + stringtab;
+ symbol_value += data_offset;
ms_type = mst_data;
break;
default:
case SS_GLOBAL:
#endif
case SS_LOCAL:
- switch (bufp->symbol_type)
+ switch (symbol_type)
{
case ST_SYM_EXT:
case ST_ARG_EXT:
continue;
case ST_CODE:
- symname = bufp->name.n_strx + stringtab;
+ symname = bfd_getb32 (bufp->name) + stringtab;
ms_type = mst_file_text;
- bufp->symbol_value += text_offset;
- bufp->symbol_value = gdbarch_addr_bits_remove
- (gdbarch, bufp->symbol_value);
+ symbol_value += text_offset;
+ symbol_value = gdbarch_addr_bits_remove (gdbarch, symbol_value);
check_strange_names:
/* Utah GCC 2.5, FSF GCC 2.6 and later generate correct local
case ST_PRI_PROG:
case ST_SEC_PROG:
case ST_MILLICODE:
- symname = bufp->name.n_strx + stringtab;
+ symname = bfd_getb32 (bufp->name) + stringtab;
ms_type = mst_file_text;
- bufp->symbol_value += text_offset;
- bufp->symbol_value = gdbarch_addr_bits_remove
- (gdbarch, bufp->symbol_value);
+ symbol_value += text_offset;
+ symbol_value = gdbarch_addr_bits_remove (gdbarch, symbol_value);
break;
case ST_ENTRY:
- symname = bufp->name.n_strx + stringtab;
+ symname = bfd_getb32 (bufp->name) + stringtab;
/* SS_LOCAL symbols in a shared library do not have
export stubs, so we do not have to worry about
using mst_file_text vs mst_solib_trampoline here like
we do for SS_UNIVERSAL and SS_EXTERNAL symbols above. */
ms_type = mst_file_text;
- bufp->symbol_value += text_offset;
- bufp->symbol_value = gdbarch_addr_bits_remove
- (gdbarch, bufp->symbol_value);
+ symbol_value += text_offset;
+ symbol_value = gdbarch_addr_bits_remove (gdbarch, symbol_value);
break;
case ST_STUB:
- symname = bufp->name.n_strx + stringtab;
+ symname = bfd_getb32 (bufp->name) + stringtab;
ms_type = mst_solib_trampoline;
- bufp->symbol_value += text_offset;
- bufp->symbol_value = gdbarch_addr_bits_remove
- (gdbarch, bufp->symbol_value);
+ symbol_value += text_offset;
+ symbol_value = gdbarch_addr_bits_remove (gdbarch, symbol_value);
break;
case ST_DATA:
- symname = bufp->name.n_strx + stringtab;
- bufp->symbol_value += data_offset;
+ symname = bfd_getb32 (bufp->name) + stringtab;
+ symbol_value += data_offset;
ms_type = mst_file_data;
goto check_strange_names;
This also happens for weak symbols, but their type is
ST_DATA. */
case SS_UNSAT:
- switch (bufp->symbol_type)
+ switch (symbol_type)
{
case ST_STORAGE:
case ST_DATA:
- symname = bufp->name.n_strx + stringtab;
- bufp->symbol_value += data_offset;
+ symname = bfd_getb32 (bufp->name) + stringtab;
+ symbol_value += data_offset;
ms_type = mst_data;
break;
continue;
}
- if (bufp->name.n_strx > obj_som_stringtab_size (abfd))
- error (_("Invalid symbol data; bad HP string table offset: %d"),
- bufp->name.n_strx);
+ if (bfd_getb32 (bufp->name) > obj_som_stringtab_size (abfd))
+ error (_("Invalid symbol data; bad HP string table offset: %s"),
+ plongest (bfd_getb32 (bufp->name)));
- prim_record_minimal_symbol (symname, bufp->symbol_value, ms_type,
- objfile);
+ if (bfd_is_const_section (section))
+ {
+ struct obj_section *iter;
+
+ ALL_OBJFILE_OSECTIONS (objfile, iter)
+ {
+ if (bfd_is_const_section (iter->the_bfd_section))
+ continue;
+
+ if (obj_section_addr (iter) <= symbol_value
+ && symbol_value < obj_section_endaddr (iter))
+ {
+ section = iter->the_bfd_section;
+ break;
+ }
+ }
+ }
+
+ prim_record_minimal_symbol_and_info (symname, symbol_value, ms_type,
+ gdb_bfd_section_index (objfile->obfd,
+ section),
+ objfile);
}
}
for real.
We look for sections with specific names, to tell us what debug
- format to look for: FIXME!!!
+ format to look for.
somstab_build_psymtabs() handles STABS symbols.
objfile->flags |= OBJF_REORDERED;
}
+/* An object of this type is passed to find_section_offset. */
+
+struct find_section_offset_arg
+{
+ /* The objfile. */
+
+ struct objfile *objfile;
+
+ /* Flags to invert. */
+
+ flagword invert;
+
+ /* Flags to look for. */
+
+ flagword flags;
+
+ /* A text section with non-zero size, if any. */
+
+ asection *best_section;
+
+ /* An empty text section, if any. */
+
+ asection *empty_section;
+};
+
+/* A callback for bfd_map_over_sections that tries to find a section
+ with particular flags in an objfile. */
+
+static void
+find_section_offset (bfd *abfd, asection *sect, void *arg)
+{
+ struct find_section_offset_arg *info = arg;
+ flagword aflag;
+
+ aflag = bfd_get_section_flags (abfd, sect);
+
+ aflag ^= info->invert;
+
+ if ((aflag & info->flags) == info->flags)
+ {
+ if (bfd_section_size (abfd, sect) > 0)
+ {
+ if (info->best_section == NULL)
+ info->best_section = sect;
+ }
+ else
+ {
+ if (info->empty_section == NULL)
+ info->empty_section = sect;
+ }
+ }
+}
+
+/* Set a section index from a BFD. */
+
+static void
+set_section_index (struct objfile *objfile, flagword invert, flagword flags,
+ int *index_ptr)
+{
+ struct find_section_offset_arg info;
+
+ info.objfile = objfile;
+ info.best_section = NULL;
+ info.empty_section = NULL;
+ info.invert = invert;
+ info.flags = flags;
+ bfd_map_over_sections (objfile->obfd, find_section_offset, &info);
+
+ if (info.best_section)
+ *index_ptr = info.best_section->index;
+ else if (info.empty_section)
+ *index_ptr = info.empty_section->index;
+}
+
/* SOM specific parsing routine for section offsets.
Plain and simple for now. */
static void
-som_symfile_offsets (struct objfile *objfile, struct section_addr_info *addrs)
+som_symfile_offsets (struct objfile *objfile,
+ const struct section_addr_info *addrs)
{
int i;
CORE_ADDR text_addr;
+ asection *sect;
objfile->num_sections = bfd_count_sections (objfile->obfd);
objfile->section_offsets = (struct section_offsets *)
obstack_alloc (&objfile->objfile_obstack,
SIZEOF_N_SECTION_OFFSETS (objfile->num_sections));
- /* FIXME: ezannoni 2000-04-20 The section names in SOM are not
- .text, .data, etc, but $TEXT$, $DATA$,... We should initialize
- SET_OFF_* from bfd. (See default_symfile_offsets()). But I don't
- know the correspondence between SOM sections and GDB's idea of
- section names. So for now we default to what is was before these
- changes. */
- objfile->sect_index_text = 0;
- objfile->sect_index_data = 1;
- objfile->sect_index_bss = 2;
- objfile->sect_index_rodata = 3;
+ set_section_index (objfile, 0, SEC_ALLOC | SEC_CODE,
+ &objfile->sect_index_text);
+ set_section_index (objfile, 0, SEC_ALLOC | SEC_DATA,
+ &objfile->sect_index_data);
+ set_section_index (objfile, SEC_LOAD, SEC_ALLOC | SEC_LOAD,
+ &objfile->sect_index_bss);
+ set_section_index (objfile, 0, SEC_ALLOC | SEC_READONLY,
+ &objfile->sect_index_rodata);
/* First see if we're a shared library. If so, get the section
offsets from the library, else get them from addrs. */
/* Note: Here is OK to compare with ".text" because this is the
name that gdb itself gives to that section, not the SOM
name. */
- for (i = 0; i < addrs->num_sections && addrs->other[i].name; i++)
+ for (i = 0; i < addrs->num_sections; i++)
if (strcmp (addrs->other[i].name, ".text") == 0)
break;
text_addr = addrs->other[i].addr;
&psym_functions
};
+initialize_file_ftype _initialize_somread;
+
void
_initialize_somread (void)
{