#include "gdb-stabs.h"
#include "stabsread.h"
#include "complaints.h"
+#include "target.h"
struct coff_symfile_info {
file_ptr min_lineno_offset; /* Where in file lowest line#s are */
}
}
+/* Return the section_offsets* that CS points to. */
+static int cs_to_section PARAMS ((struct coff_symbol *, struct objfile *));
+
+struct find_targ_sec_arg {
+ int targ_index;
+ int *resultp;
+};
+
+static void find_targ_sec PARAMS ((bfd *, asection *, void *));
+
+static void find_targ_sec (abfd, sect, obj)
+ bfd *abfd;
+ asection *sect;
+ PTR obj;
+{
+ struct find_targ_sec_arg *args = (struct find_targ_sec_arg *)obj;
+ if (sect->target_index == args->targ_index)
+ {
+ /* This is the section. Figure out what SECT_OFF_* code it is. */
+ if (bfd_get_section_flags (abfd, sect) & SEC_CODE)
+ *args->resultp = SECT_OFF_TEXT;
+ else if (bfd_get_section_flags (abfd, sect) & SEC_LOAD)
+ *args->resultp = SECT_OFF_DATA;
+ else
+ *args->resultp = SECT_OFF_BSS;
+ }
+}
+
+/* Return the section number (SECT_OFF_*) that CS points to. */
+static int
+cs_to_section (cs, objfile)
+ struct coff_symbol *cs;
+ struct objfile *objfile;
+{
+ int off = SECT_OFF_TEXT;
+ struct find_targ_sec_arg args;
+ args.targ_index = cs->c_secnum;
+ args.resultp = &off;
+ bfd_map_over_sections (objfile->obfd, find_targ_sec, &args);
+ return off;
+}
+
/* Look up a coff type-number index. Return the address of the slot
where the type for that index is stored.
The type-number is in INDEX.
coff_start_symtab ()
{
start_symtab (
- /* We fill in the filename later. start_symtab
- puts this pointer into last_source file and in
- coff_end_symtab we assume we can free() it.
- FIXME: leaks memory. */
+ /* We fill in the filename later. start_symtab puts
+ this pointer into last_source_file and we put it in
+ subfiles->name, which end_symtab frees; that's why
+ it must be malloc'd. */
savestring ("", 0),
/* We never know the directory name for COFF. */
NULL,
CORE_ADDR start_addr;
unsigned int size;
{
+ if (last_source_file != NULL)
+ free (last_source_file);
last_source_file = savestring (name, strlen (name));
current_source_start_addr = start_addr;
current_source_end_addr = start_addr + size;
/* We don't want TDESC entry points in the minimal symbol table */
if (name[0] == '@') return;
- prim_record_minimal_symbol (savestring (name, strlen (name)), address, type,
- objfile);
+ prim_record_minimal_symbol
+ (obsavestring (name, strlen (name), &objfile->symbol_obstack),
+ address, type,
+ objfile);
}
\f
/* coff_symfile_init ()
The ultimate result is a new symtab (or, FIXME, eventually a psymtab). */
-static int text_bfd_scnum;
-
static void
coff_symfile_init (objfile)
struct objfile *objfile;
{
- asection *section;
bfd *abfd = objfile->obfd;
/* Allocate struct to keep track of stab reading. */
memset (objfile->sym_private, 0, sizeof (struct coff_symfile_info));
init_entry_point_info (objfile);
-
- /* Save the section number for the text section */
- section = bfd_get_section_by_name (abfd, ".text");
- if (section)
- text_bfd_scnum = section->index;
- else
- text_bfd_scnum = -1;
}
/* This function is called for every section; it finds the outer limits
break;
/* fall in for static symbols that don't start with '.' */
case C_EXT:
- /* Record it in the minimal symbols regardless of SDB_TYPE.
- This parallels what we do for other debug formats, and
- probably is needed to make print_address_symbolic work right
- without the (now gone) "set fast-symbolic-addr off" kludge. */
-
- /* FIXME: This bogusly assumes the sections are in a certain
- order, text (SEC_CODE) sections are before data sections,
- etc. */
- if (cs->c_secnum <= text_bfd_scnum+1)
- {
- /* text or absolute. (FIXME, should use mst_abs if
- absolute). */
- tmpaddr = cs->c_value;
- if (cs->c_sclass != C_STAT)
- tmpaddr += ANOFFSET (section_offsets, SECT_OFF_TEXT);
- record_minimal_symbol
- (cs->c_name, tmpaddr,
- cs->c_sclass == C_STAT ? mst_file_text : mst_text,
- objfile);
- }
- else
- {
- tmpaddr = cs->c_value;
- if (cs->c_sclass != C_STAT)
- tmpaddr += ANOFFSET (section_offsets, SECT_OFF_DATA);
- record_minimal_symbol
- (cs->c_name, tmpaddr,
- cs->c_sclass == C_STAT ? mst_file_data : mst_data,
+ {
+ /* Record it in the minimal symbols regardless of
+ SDB_TYPE. This parallels what we do for other debug
+ formats, and probably is needed to make
+ print_address_symbolic work right without the (now
+ gone) "set fast-symbolic-addr off" kludge. */
+
+ /* FIXME: should use mst_abs, and not relocate, if absolute. */
+ enum minimal_symbol_type ms_type;
+ int sec;
+
+ if (cs->c_secnum == N_UNDEF)
+ {
+ /* This is a common symbol. See if the target
+ environment knows where it has been relocated to. */
+ CORE_ADDR reladdr;
+ if (target_lookup_symbol (cs->c_name, &reladdr))
+ {
+ /* Error in lookup; ignore symbol. */
+ break;
+ }
+ tmpaddr = reladdr;
+ /* The address has already been relocated; make sure that
+ objfile_relocate doesn't relocate it again. */
+ sec = -2;
+ ms_type = cs->c_sclass == C_STAT ? mst_file_bss : mst_bss;
+ }
+ else
+ {
+ sec = cs_to_section (cs, objfile);
+ tmpaddr = cs->c_value;
+ if (cs->c_sclass != C_STAT)
+ tmpaddr += ANOFFSET (section_offsets, sec);
+
+ switch (sec)
+ {
+ case SECT_OFF_TEXT:
+ case SECT_OFF_RODATA:
+ ms_type =
+ cs->c_sclass == C_STAT ? mst_file_text : mst_text;
+ break;
+ case SECT_OFF_DATA:
+ ms_type =
+ cs->c_sclass == C_STAT ? mst_file_data : mst_data;
+ break;
+ case SECT_OFF_BSS:
+ ms_type =
+ cs->c_sclass == C_STAT ? mst_file_bss : mst_bss;
+ break;
+ default:
+ ms_type = mst_unknown;
+ break;
+ }
+ }
+
+ if (cs->c_name[0] != '@' /* Skip tdesc symbols */)
+ prim_record_minimal_symbol_and_info
+ (obsavestring (cs->c_name, strlen (cs->c_name),
+ &objfile->symbol_obstack),
+ tmpaddr,
+ ms_type,
+ NULL,
+ sec,
objfile);
- }
- if (SDB_TYPE (cs->c_type))
- process_coff_symbol (cs, &main_aux, section_offsets, objfile);
+
+ if (SDB_TYPE (cs->c_type))
+ {
+ struct symbol *sym;
+ sym = process_coff_symbol
+ (cs, &main_aux, section_offsets, objfile);
+ SYMBOL_VALUE (sym) = tmpaddr;
+ SYMBOL_SECTION (sym) = sec;
+ }
+ }
break;
case C_FCN:
return 0;
stringtab = (char *) xmalloc (length);
- memcpy (stringtab, &length, sizeof length);
+ /* This is in target format (probably not very useful, and not currently
+ used), not host format. */
+ memcpy (stringtab, lengthbuf, sizeof lengthbuf);
if (length == sizeof length) /* Empty table -- just the count */
return 0;
if (symbol_entry->_n._n_n._n_zeroes == 0)
{
+ /* FIXME: Probably should be detecting corrupt symbol files by
+ seeing whether offset points to within the stringtab. */
result = stringtab + symbol_entry->_n._n_n._n_offset;
}
else
buffer[FILNMLEN] = '\0';
}
result = buffer;
+
+ /* FIXME: We should not be throwing away the information about what
+ directory. It should go into dirname of the symtab, or some such
+ place. */
if ((temp = strrchr (result, '/')) != NULL)
result = temp + 1;
return (result);
/* default assumptions */
SYMBOL_VALUE (sym) = cs->c_value;
SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
+ SYMBOL_SECTION (sym) = cs_to_section (cs, objfile);
if (ISFCN (cs->c_type))
{
add_param_to_type(&in_function_type,sym);
#endif
add_symbol_to_list (sym, &local_symbols);
-#if !defined (BELIEVE_PCC_PROMOTION) && (TARGET_BYTE_ORDER == BIG_ENDIAN)
- {
- /* If PCC says a parameter is a short or a char,
- aligned on an int boundary, realign it to the "little end"
- of the int. */
- struct type *temptype;
- temptype = lookup_fundamental_type (current_objfile, FT_INTEGER);
- if (TYPE_LENGTH (SYMBOL_TYPE (sym)) < TYPE_LENGTH (temptype)
- && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_INT
- && 0 == SYMBOL_VALUE (sym) % TYPE_LENGTH (temptype))
- {
- SYMBOL_VALUE (sym) +=
- TYPE_LENGTH (temptype)
- - TYPE_LENGTH (SYMBOL_TYPE (sym));
- }
- }
+#if !defined (BELIEVE_PCC_PROMOTION)
+ if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ {
+ /* If PCC says a parameter is a short or a char,
+ aligned on an int boundary, realign it to the
+ "little end" of the int. */
+ struct type *temptype;
+ temptype = lookup_fundamental_type (current_objfile,
+ FT_INTEGER);
+ if (TYPE_LENGTH (SYMBOL_TYPE (sym)) < TYPE_LENGTH (temptype)
+ && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_INT
+ && 0 == SYMBOL_VALUE (sym) % TYPE_LENGTH (temptype))
+ {
+ SYMBOL_VALUE (sym) +=
+ TYPE_LENGTH (temptype)
+ - TYPE_LENGTH (SYMBOL_TYPE (sym));
+ }
+ }
#endif
break;
list = new;
/* Save the data. */
- list->field.name = savestring (name, strlen (name));
+ list->field.name =
+ obsavestring (name,
+ strlen (name),
+ ¤t_objfile->symbol_obstack);
list->field.type = decode_type (ms, ms->c_type, &sub_aux);
list->field.bitpos = 8 * ms->c_value;
list->field.bitsize = 0;
list = new;
/* Save the data. */
- list->field.name = savestring (name, strlen (name));
+ list->field.name =
+ obsavestring (name,
+ strlen (name),
+ ¤t_objfile->symbol_obstack);
list->field.type = decode_type (ms, ms->c_type, &sub_aux);
list->field.bitpos = ms->c_value;
list->field.bitsize = sub_aux.x_sym.x_misc.x_lnsz.x_size;
switch (ms->c_sclass)
{
case C_MOE:
- sym = (struct symbol *) xmalloc (sizeof (struct symbol));
+ sym = (struct symbol *) obstack_alloc
+ (¤t_objfile->symbol_obstack,
+ sizeof (struct symbol));
memset (sym, 0, sizeof (struct symbol));
- SYMBOL_NAME (sym) = savestring (name, strlen (name));
+ SYMBOL_NAME (sym) =
+ obsavestring (name, strlen (name),
+ ¤t_objfile->symbol_obstack);
SYMBOL_CLASS (sym) = LOC_CONST;
SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
SYMBOL_VALUE (sym) = ms->c_value;
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