+/* The following functions are available for a backend to construct its
+ own unwind information, usually from legacy unwind directives. */
+
+/* Construct a new INSN structure and add it to the end of the insn list
+ for the currently active FDE. */
+
+static bfd_boolean cfi_sections_set = FALSE;
+static int cfi_sections = CFI_EMIT_eh_frame;
+int all_cfi_sections = 0;
+static struct fde_entry *last_fde;
+
+static struct cfi_insn_data *
+alloc_cfi_insn_data (void)
+{
+ struct cfi_insn_data *insn = (struct cfi_insn_data *)
+ xcalloc (1, sizeof (struct cfi_insn_data));
+ struct fde_entry *cur_fde_data = frchain_now->frch_cfi_data->cur_fde_data;
+
+ *cur_fde_data->last = insn;
+ cur_fde_data->last = &insn->next;
+ SET_CUR_SEG (insn, is_now_linkonce_segment ());
+ return insn;
+}
+
+/* Construct a new FDE structure that begins at LABEL. */
+
+void
+cfi_new_fde (symbolS *label)
+{
+ struct fde_entry *fde = alloc_fde_entry ();
+ fde->start_address = label;
+ frchain_now->frch_cfi_data->last_address = label;
+}
+
+/* End the currently open FDE. */
+
+void
+cfi_end_fde (symbolS *label)
+{
+ frchain_now->frch_cfi_data->cur_fde_data->end_address = label;
+ free (frchain_now->frch_cfi_data);
+ frchain_now->frch_cfi_data = NULL;
+}
+
+/* Set the return column for the current FDE. */
+
+void
+cfi_set_return_column (unsigned regno)
+{
+ frchain_now->frch_cfi_data->cur_fde_data->return_column = regno;
+}
+
+void
+cfi_set_sections (void)
+{
+ frchain_now->frch_cfi_data->cur_fde_data->sections = all_cfi_sections;
+ cfi_sections_set = TRUE;
+}
+
+/* Universal functions to store new instructions. */
+
+static void
+cfi_add_CFA_insn (int insn)
+{
+ struct cfi_insn_data *insn_ptr = alloc_cfi_insn_data ();
+
+ insn_ptr->insn = insn;
+}
+
+static void
+cfi_add_CFA_insn_reg (int insn, unsigned regno)
+{
+ struct cfi_insn_data *insn_ptr = alloc_cfi_insn_data ();
+
+ insn_ptr->insn = insn;
+ insn_ptr->u.r = regno;
+}
+
+static void
+cfi_add_CFA_insn_offset (int insn, offsetT offset)
+{
+ struct cfi_insn_data *insn_ptr = alloc_cfi_insn_data ();
+
+ insn_ptr->insn = insn;
+ insn_ptr->u.i = offset;
+}
+
+static void
+cfi_add_CFA_insn_reg_reg (int insn, unsigned reg1, unsigned reg2)
+{
+ struct cfi_insn_data *insn_ptr = alloc_cfi_insn_data ();
+
+ insn_ptr->insn = insn;
+ insn_ptr->u.rr.reg1 = reg1;
+ insn_ptr->u.rr.reg2 = reg2;
+}
+
+static void
+cfi_add_CFA_insn_reg_offset (int insn, unsigned regno, offsetT offset)
+{
+ struct cfi_insn_data *insn_ptr = alloc_cfi_insn_data ();
+
+ insn_ptr->insn = insn;
+ insn_ptr->u.ri.reg = regno;
+ insn_ptr->u.ri.offset = offset;
+}
+
+/* Add a CFI insn to advance the PC from the last address to LABEL. */
+
+void
+cfi_add_advance_loc (symbolS *label)
+{
+ struct cfi_insn_data *insn = alloc_cfi_insn_data ();
+
+ insn->insn = DW_CFA_advance_loc;
+ insn->u.ll.lab1 = frchain_now->frch_cfi_data->last_address;
+ insn->u.ll.lab2 = label;
+
+ frchain_now->frch_cfi_data->last_address = label;
+}
+
+/* Add a CFI insn to label the current position in the CFI segment. */
+
+void
+cfi_add_label (const char *name)
+{
+ unsigned int len = strlen (name) + 1;
+ struct cfi_insn_data *insn = alloc_cfi_insn_data ();
+
+ insn->insn = CFI_label;
+ obstack_grow (¬es, name, len);
+ insn->u.sym_name = (char *) obstack_finish (¬es);
+}
+
+/* Add a DW_CFA_offset record to the CFI data. */
+
+void
+cfi_add_CFA_offset (unsigned regno, offsetT offset)
+{
+ unsigned int abs_data_align;
+
+ gas_assert (DWARF2_CIE_DATA_ALIGNMENT != 0);
+ cfi_add_CFA_insn_reg_offset (DW_CFA_offset, regno, offset);
+
+ abs_data_align = (DWARF2_CIE_DATA_ALIGNMENT < 0
+ ? -DWARF2_CIE_DATA_ALIGNMENT : DWARF2_CIE_DATA_ALIGNMENT);
+ if (offset % abs_data_align)
+ as_bad (_("register save offset not a multiple of %u"), abs_data_align);
+}
+
+/* Add a DW_CFA_def_cfa record to the CFI data. */
+
+void
+cfi_add_CFA_def_cfa (unsigned regno, offsetT offset)
+{
+ cfi_add_CFA_insn_reg_offset (DW_CFA_def_cfa, regno, offset);
+ frchain_now->frch_cfi_data->cur_cfa_offset = offset;
+}
+
+/* Add a DW_CFA_register record to the CFI data. */
+
+void
+cfi_add_CFA_register (unsigned reg1, unsigned reg2)
+{
+ cfi_add_CFA_insn_reg_reg (DW_CFA_register, reg1, reg2);
+}
+
+/* Add a DW_CFA_def_cfa_register record to the CFI data. */
+
+void
+cfi_add_CFA_def_cfa_register (unsigned regno)
+{
+ cfi_add_CFA_insn_reg (DW_CFA_def_cfa_register, regno);
+}
+
+/* Add a DW_CFA_def_cfa_offset record to the CFI data. */
+
+void
+cfi_add_CFA_def_cfa_offset (offsetT offset)
+{
+ cfi_add_CFA_insn_offset (DW_CFA_def_cfa_offset, offset);
+ frchain_now->frch_cfi_data->cur_cfa_offset = offset;
+}
+
+void
+cfi_add_CFA_restore (unsigned regno)
+{
+ cfi_add_CFA_insn_reg (DW_CFA_restore, regno);
+}
+
+void
+cfi_add_CFA_undefined (unsigned regno)
+{
+ cfi_add_CFA_insn_reg (DW_CFA_undefined, regno);
+}
+
+void
+cfi_add_CFA_same_value (unsigned regno)
+{
+ cfi_add_CFA_insn_reg (DW_CFA_same_value, regno);
+}
+
+void
+cfi_add_CFA_remember_state (void)
+{
+ struct cfa_save_data *p;
+
+ cfi_add_CFA_insn (DW_CFA_remember_state);
+
+ p = (struct cfa_save_data *) xmalloc (sizeof (*p));
+ p->cfa_offset = frchain_now->frch_cfi_data->cur_cfa_offset;
+ p->next = frchain_now->frch_cfi_data->cfa_save_stack;
+ frchain_now->frch_cfi_data->cfa_save_stack = p;
+}
+
+void
+cfi_add_CFA_restore_state (void)
+{
+ struct cfa_save_data *p;
+
+ cfi_add_CFA_insn (DW_CFA_restore_state);
+
+ p = frchain_now->frch_cfi_data->cfa_save_stack;
+ if (p)
+ {
+ frchain_now->frch_cfi_data->cur_cfa_offset = p->cfa_offset;
+ frchain_now->frch_cfi_data->cfa_save_stack = p->next;
+ free (p);
+ }
+ else
+ as_bad (_("CFI state restore without previous remember"));
+}
+
+\f
+/* Parse CFI assembler directives. */
+
+static void dot_cfi (int);
+static void dot_cfi_escape (int);
+static void dot_cfi_sections (int);
+static void dot_cfi_startproc (int);
+static void dot_cfi_endproc (int);
+static void dot_cfi_fde_data (int);
+static void dot_cfi_personality (int);
+static void dot_cfi_personality_id (int);
+static void dot_cfi_lsda (int);
+static void dot_cfi_val_encoded_addr (int);
+static void dot_cfi_inline_lsda (int);
+static void dot_cfi_label (int);
+
+const pseudo_typeS cfi_pseudo_table[] =
+ {
+ { "cfi_sections", dot_cfi_sections, 0 },
+ { "cfi_startproc", dot_cfi_startproc, 0 },
+ { "cfi_endproc", dot_cfi_endproc, 0 },
+ { "cfi_fde_data", dot_cfi_fde_data, 0 },
+ { "cfi_def_cfa", dot_cfi, DW_CFA_def_cfa },
+ { "cfi_def_cfa_register", dot_cfi, DW_CFA_def_cfa_register },
+ { "cfi_def_cfa_offset", dot_cfi, DW_CFA_def_cfa_offset },
+ { "cfi_adjust_cfa_offset", dot_cfi, CFI_adjust_cfa_offset },
+ { "cfi_offset", dot_cfi, DW_CFA_offset },
+ { "cfi_rel_offset", dot_cfi, CFI_rel_offset },
+ { "cfi_register", dot_cfi, DW_CFA_register },
+ { "cfi_return_column", dot_cfi, CFI_return_column },
+ { "cfi_restore", dot_cfi, DW_CFA_restore },
+ { "cfi_undefined", dot_cfi, DW_CFA_undefined },
+ { "cfi_same_value", dot_cfi, DW_CFA_same_value },
+ { "cfi_remember_state", dot_cfi, DW_CFA_remember_state },
+ { "cfi_restore_state", dot_cfi, DW_CFA_restore_state },
+ { "cfi_window_save", dot_cfi, DW_CFA_GNU_window_save },
+ { "cfi_escape", dot_cfi_escape, 0 },
+ { "cfi_signal_frame", dot_cfi, CFI_signal_frame },
+ { "cfi_personality", dot_cfi_personality, 0 },
+ { "cfi_personality_id", dot_cfi_personality_id, 0 },
+ { "cfi_lsda", dot_cfi_lsda, 0 },
+ { "cfi_val_encoded_addr", dot_cfi_val_encoded_addr, 0 },
+ { "cfi_inline_lsda", dot_cfi_inline_lsda, 0 },
+ { "cfi_label", dot_cfi_label, 0 },
+ { NULL, NULL, 0 }
+ };
+
+static void
+cfi_parse_separator (void)
+{
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer == ',')
+ input_line_pointer++;
+ else
+ as_bad (_("missing separator"));
+}
+
+#ifndef tc_parse_to_dw2regnum
+static void
+tc_parse_to_dw2regnum (expressionS *exp)
+{
+# ifdef tc_regname_to_dw2regnum
+ SKIP_WHITESPACE ();
+ if (is_name_beginner (*input_line_pointer)
+ || (*input_line_pointer == '%'
+ && is_name_beginner (*++input_line_pointer)))
+ {
+ char *name, c;
+
+ c = get_symbol_name (& name);
+
+ exp->X_op = O_constant;
+ exp->X_add_number = tc_regname_to_dw2regnum (name);
+
+ restore_line_pointer (c);
+ }
+ else
+# endif
+ expression_and_evaluate (exp);
+}
+#endif
+
+static unsigned
+cfi_parse_reg (void)
+{
+ int regno;
+ expressionS exp;
+
+ tc_parse_to_dw2regnum (&exp);
+ switch (exp.X_op)
+ {
+ case O_register:
+ case O_constant:
+ regno = exp.X_add_number;
+ break;
+
+ default:
+ regno = -1;
+ break;
+ }
+
+ if (regno < 0)
+ {
+ as_bad (_("bad register expression"));
+ regno = 0;
+ }
+
+ return regno;
+}
+
+static offsetT
+cfi_parse_const (void)
+{
+ return get_absolute_expression ();
+}
+
+static void
+dot_cfi (int arg)
+{
+ offsetT offset;
+ unsigned reg1, reg2;
+
+ if (frchain_now->frch_cfi_data == NULL)
+ {
+ as_bad (_("CFI instruction used without previous .cfi_startproc"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ /* If the last address was not at the current PC, advance to current. */
+ if (symbol_get_frag (frchain_now->frch_cfi_data->last_address) != frag_now
+ || S_GET_VALUE (frchain_now->frch_cfi_data->last_address)
+ != frag_now_fix ())
+ cfi_add_advance_loc (symbol_temp_new_now ());
+
+ switch (arg)
+ {
+ case DW_CFA_offset:
+ reg1 = cfi_parse_reg ();
+ cfi_parse_separator ();
+ offset = cfi_parse_const ();
+ cfi_add_CFA_offset (reg1, offset);
+ break;
+
+ case CFI_rel_offset:
+ reg1 = cfi_parse_reg ();
+ cfi_parse_separator ();
+ offset = cfi_parse_const ();
+ cfi_add_CFA_offset (reg1,
+ offset - frchain_now->frch_cfi_data->cur_cfa_offset);
+ break;
+
+ case DW_CFA_def_cfa:
+ reg1 = cfi_parse_reg ();
+ cfi_parse_separator ();
+ offset = cfi_parse_const ();
+ cfi_add_CFA_def_cfa (reg1, offset);
+ break;
+
+ case DW_CFA_register:
+ reg1 = cfi_parse_reg ();
+ cfi_parse_separator ();
+ reg2 = cfi_parse_reg ();
+ cfi_add_CFA_register (reg1, reg2);
+ break;
+
+ case DW_CFA_def_cfa_register:
+ reg1 = cfi_parse_reg ();
+ cfi_add_CFA_def_cfa_register (reg1);
+ break;
+
+ case DW_CFA_def_cfa_offset:
+ offset = cfi_parse_const ();
+ cfi_add_CFA_def_cfa_offset (offset);
+ break;
+
+ case CFI_adjust_cfa_offset:
+ offset = cfi_parse_const ();
+ cfi_add_CFA_def_cfa_offset (frchain_now->frch_cfi_data->cur_cfa_offset
+ + offset);
+ break;
+
+ case DW_CFA_restore:
+ for (;;)
+ {
+ reg1 = cfi_parse_reg ();
+ cfi_add_CFA_restore (reg1);
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer != ',')
+ break;
+ ++input_line_pointer;
+ }
+ break;
+
+ case DW_CFA_undefined:
+ for (;;)
+ {
+ reg1 = cfi_parse_reg ();
+ cfi_add_CFA_undefined (reg1);
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer != ',')
+ break;
+ ++input_line_pointer;
+ }
+ break;
+
+ case DW_CFA_same_value:
+ reg1 = cfi_parse_reg ();
+ cfi_add_CFA_same_value (reg1);
+ break;
+
+ case CFI_return_column:
+ reg1 = cfi_parse_reg ();
+ cfi_set_return_column (reg1);
+ break;
+
+ case DW_CFA_remember_state:
+ cfi_add_CFA_remember_state ();
+ break;
+
+ case DW_CFA_restore_state:
+ cfi_add_CFA_restore_state ();
+ break;
+
+ case DW_CFA_GNU_window_save:
+ cfi_add_CFA_insn (DW_CFA_GNU_window_save);
+ break;
+
+ case CFI_signal_frame:
+ frchain_now->frch_cfi_data->cur_fde_data->signal_frame = 1;
+ break;
+
+ default:
+ abort ();
+ }
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+dot_cfi_escape (int ignored ATTRIBUTE_UNUSED)
+{
+ struct cfi_escape_data *head, **tail, *e;
+ struct cfi_insn_data *insn;
+
+ if (frchain_now->frch_cfi_data == NULL)
+ {
+ as_bad (_("CFI instruction used without previous .cfi_startproc"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ /* If the last address was not at the current PC, advance to current. */
+ if (symbol_get_frag (frchain_now->frch_cfi_data->last_address) != frag_now
+ || S_GET_VALUE (frchain_now->frch_cfi_data->last_address)
+ != frag_now_fix ())
+ cfi_add_advance_loc (symbol_temp_new_now ());
+
+ tail = &head;
+ do
+ {
+ e = (struct cfi_escape_data *) xmalloc (sizeof (*e));
+ do_parse_cons_expression (&e->exp, 1);
+ *tail = e;
+ tail = &e->next;
+ }
+ while (*input_line_pointer++ == ',');
+ *tail = NULL;
+
+ insn = alloc_cfi_insn_data ();
+ insn->insn = CFI_escape;
+ insn->u.esc = head;
+
+ --input_line_pointer;
+ demand_empty_rest_of_line ();
+}
+
+static void
+dot_cfi_personality (int ignored ATTRIBUTE_UNUSED)
+{
+ struct fde_entry *fde;
+ offsetT encoding;
+
+ if (frchain_now->frch_cfi_data == NULL)
+ {
+ as_bad (_("CFI instruction used without previous .cfi_startproc"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ fde = frchain_now->frch_cfi_data->cur_fde_data;
+ encoding = cfi_parse_const ();
+ if (encoding == DW_EH_PE_omit)
+ {
+ demand_empty_rest_of_line ();
+ fde->per_encoding = encoding;
+ return;
+ }
+
+ if ((encoding & 0xff) != encoding
+ || ((((encoding & 0x70) != 0
+#if CFI_DIFF_EXPR_OK || defined tc_cfi_emit_pcrel_expr
+ && (encoding & 0x70) != DW_EH_PE_pcrel
+#endif
+ )
+ /* leb128 can be handled, but does something actually need it? */
+ || (encoding & 7) == DW_EH_PE_uleb128
+ || (encoding & 7) > DW_EH_PE_udata8)
+ && tc_cfi_reloc_for_encoding (encoding) == BFD_RELOC_NONE))
+ {
+ as_bad (_("invalid or unsupported encoding in .cfi_personality"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ if (*input_line_pointer++ != ',')
+ {
+ as_bad (_(".cfi_personality requires encoding and symbol arguments"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ expression_and_evaluate (&fde->personality);
+ switch (fde->personality.X_op)
+ {
+ case O_symbol:
+ break;
+ case O_constant:
+ if ((encoding & 0x70) == DW_EH_PE_pcrel)
+ encoding = DW_EH_PE_omit;
+ break;
+ default:
+ encoding = DW_EH_PE_omit;
+ break;
+ }
+
+ fde->per_encoding = encoding;
+
+ if (encoding == DW_EH_PE_omit)
+ {
+ as_bad (_("wrong second argument to .cfi_personality"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+dot_cfi_lsda (int ignored ATTRIBUTE_UNUSED)
+{
+ struct fde_entry *fde;
+ offsetT encoding;
+
+ if (frchain_now->frch_cfi_data == NULL)
+ {
+ as_bad (_("CFI instruction used without previous .cfi_startproc"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ fde = frchain_now->frch_cfi_data->cur_fde_data;
+ encoding = cfi_parse_const ();
+ if (encoding == DW_EH_PE_omit)
+ {
+ demand_empty_rest_of_line ();
+ fde->lsda_encoding = encoding;
+ return;
+ }
+
+ if ((encoding & 0xff) != encoding
+ || ((((encoding & 0x70) != 0
+#if CFI_DIFF_LSDA_OK || defined tc_cfi_emit_pcrel_expr
+ && (encoding & 0x70) != DW_EH_PE_pcrel
+#endif
+ )
+ /* leb128 can be handled, but does something actually need it? */
+ || (encoding & 7) == DW_EH_PE_uleb128
+ || (encoding & 7) > DW_EH_PE_udata8)
+ && tc_cfi_reloc_for_encoding (encoding) == BFD_RELOC_NONE))
+ {
+ as_bad (_("invalid or unsupported encoding in .cfi_lsda"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ if (*input_line_pointer++ != ',')
+ {
+ as_bad (_(".cfi_lsda requires encoding and symbol arguments"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ fde->lsda_encoding = encoding;
+
+ expression_and_evaluate (&fde->lsda);
+ switch (fde->lsda.X_op)
+ {
+ case O_symbol:
+ break;
+ case O_constant:
+ if ((encoding & 0x70) == DW_EH_PE_pcrel)
+ encoding = DW_EH_PE_omit;
+ break;
+ default:
+ encoding = DW_EH_PE_omit;
+ break;
+ }
+
+ fde->lsda_encoding = encoding;
+
+ if (encoding == DW_EH_PE_omit)
+ {
+ as_bad (_("wrong second argument to .cfi_lsda"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+dot_cfi_val_encoded_addr (int ignored ATTRIBUTE_UNUSED)
+{
+ struct cfi_insn_data *insn_ptr;
+ offsetT encoding;
+
+ if (frchain_now->frch_cfi_data == NULL)
+ {
+ as_bad (_("CFI instruction used without previous .cfi_startproc"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ /* If the last address was not at the current PC, advance to current. */
+ if (symbol_get_frag (frchain_now->frch_cfi_data->last_address) != frag_now
+ || S_GET_VALUE (frchain_now->frch_cfi_data->last_address)
+ != frag_now_fix ())
+ cfi_add_advance_loc (symbol_temp_new_now ());
+
+ insn_ptr = alloc_cfi_insn_data ();
+ insn_ptr->insn = CFI_val_encoded_addr;
+
+ insn_ptr->u.ea.reg = cfi_parse_reg ();
+
+ cfi_parse_separator ();
+ encoding = cfi_parse_const ();
+ if ((encoding & 0xff) != encoding
+ || ((encoding & 0x70) != 0
+#if CFI_DIFF_EXPR_OK || defined tc_cfi_emit_pcrel_expr
+ && (encoding & 0x70) != DW_EH_PE_pcrel
+#endif
+ )
+ /* leb128 can be handled, but does something actually need it? */
+ || (encoding & 7) == DW_EH_PE_uleb128
+ || (encoding & 7) > DW_EH_PE_udata8)
+ {
+ as_bad (_("invalid or unsupported encoding in .cfi_lsda"));
+ encoding = DW_EH_PE_omit;
+ }
+
+ cfi_parse_separator ();
+ expression_and_evaluate (&insn_ptr->u.ea.exp);
+ switch (insn_ptr->u.ea.exp.X_op)
+ {
+ case O_symbol:
+ break;
+ case O_constant:
+ if ((encoding & 0x70) != DW_EH_PE_pcrel)
+ break;
+ default:
+ encoding = DW_EH_PE_omit;
+ break;
+ }
+
+ insn_ptr->u.ea.encoding = encoding;
+ if (encoding == DW_EH_PE_omit)
+ {
+ as_bad (_("wrong third argument to .cfi_val_encoded_addr"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+dot_cfi_label (int ignored ATTRIBUTE_UNUSED)
+{
+ char *name = read_symbol_name ();
+
+ if (name == NULL)
+ return;
+
+ /* If the last address was not at the current PC, advance to current. */
+ if (symbol_get_frag (frchain_now->frch_cfi_data->last_address) != frag_now
+ || S_GET_VALUE (frchain_now->frch_cfi_data->last_address)
+ != frag_now_fix ())
+ cfi_add_advance_loc (symbol_temp_new_now ());
+
+ cfi_add_label (name);
+ free (name);
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+dot_cfi_sections (int ignored ATTRIBUTE_UNUSED)
+{
+ int sections = 0;
+
+ SKIP_WHITESPACE ();
+ if (is_name_beginner (*input_line_pointer) || *input_line_pointer == '"')
+ while (1)
+ {
+ char * saved_ilp;
+ char *name, c;
+
+ saved_ilp = input_line_pointer;
+ c = get_symbol_name (& name);
+
+ if (strncmp (name, ".eh_frame", sizeof ".eh_frame") == 0
+ && name[9] != '_')
+ sections |= CFI_EMIT_eh_frame;
+ else if (strncmp (name, ".debug_frame", sizeof ".debug_frame") == 0)
+ sections |= CFI_EMIT_debug_frame;
+#if SUPPORT_COMPACT_EH
+ else if (strncmp (name, ".eh_frame_entry", sizeof ".eh_frame_entry") == 0)
+ {
+ compact_eh = TRUE;
+ sections |= CFI_EMIT_eh_frame_compact;
+ }
+#endif
+#ifdef tc_cfi_section_name
+ else if (strcmp (name, tc_cfi_section_name) == 0)
+ sections |= CFI_EMIT_target;
+#endif
+ else
+ {
+ *input_line_pointer = c;
+ input_line_pointer = saved_ilp;
+ break;
+ }
+
+ *input_line_pointer = c;
+ SKIP_WHITESPACE_AFTER_NAME ();
+ if (*input_line_pointer == ',')
+ {
+ name = input_line_pointer++;
+ SKIP_WHITESPACE ();
+ if (!is_name_beginner (*input_line_pointer) && *input_line_pointer != '"')
+ {
+ input_line_pointer = name;
+ break;
+ }
+ }
+ else if (is_name_beginner (*input_line_pointer) || *input_line_pointer == '"')
+ break;
+ }
+
+ demand_empty_rest_of_line ();
+ if (cfi_sections_set && cfi_sections != sections)
+ as_bad (_("inconsistent uses of .cfi_sections"));
+ cfi_sections = sections;
+}
+
+static void
+dot_cfi_startproc (int ignored ATTRIBUTE_UNUSED)
+{
+ int simple = 0;
+
+ if (frchain_now->frch_cfi_data != NULL)
+ {
+ as_bad (_("previous CFI entry not closed (missing .cfi_endproc)"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ cfi_new_fde (symbol_temp_new_now ());
+
+ SKIP_WHITESPACE ();
+ if (is_name_beginner (*input_line_pointer) || *input_line_pointer == '"')
+ {
+ char * saved_ilp = input_line_pointer;
+ char *name, c;
+
+ c = get_symbol_name (& name);
+
+ if (strcmp (name, "simple") == 0)
+ {
+ simple = 1;
+ restore_line_pointer (c);
+ }
+ else
+ input_line_pointer = saved_ilp;
+ }
+ demand_empty_rest_of_line ();
+
+ cfi_sections_set = TRUE;
+ all_cfi_sections |= cfi_sections;
+ cfi_set_sections ();
+ frchain_now->frch_cfi_data->cur_cfa_offset = 0;
+ if (!simple)
+ tc_cfi_frame_initial_instructions ();
+
+ if ((cfi_sections & CFI_EMIT_target) != 0)
+ tc_cfi_startproc ();
+}
+
+static void
+dot_cfi_endproc (int ignored ATTRIBUTE_UNUSED)
+{
+ if (frchain_now->frch_cfi_data == NULL)
+ {
+ as_bad (_(".cfi_endproc without corresponding .cfi_startproc"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ last_fde = frchain_now->frch_cfi_data->cur_fde_data;
+
+ cfi_end_fde (symbol_temp_new_now ());
+
+ demand_empty_rest_of_line ();
+
+ cfi_sections_set = TRUE;
+ if ((cfi_sections & CFI_EMIT_target) != 0)
+ tc_cfi_endproc (last_fde);
+}
+
+static segT
+get_cfi_seg (segT cseg, const char *base, flagword flags, int align)
+{
+ /* Exclude .debug_frame sections for Compact EH. */
+ if (SUPPORT_FRAME_LINKONCE || ((flags & SEC_DEBUGGING) == 0 && compact_eh))
+ {
+ struct dwcfi_seg_list *l;
+
+ l = dwcfi_hash_find_or_make (cseg, base, flags);
+
+ cseg = l->seg;
+ subseg_set (cseg, l->subseg);
+ }
+ else
+ {
+ cseg = subseg_new (base, 0);
+ bfd_set_section_flags (stdoutput, cseg, flags);
+ }
+ record_alignment (cseg, align);
+ return cseg;
+}
+
+#if SUPPORT_COMPACT_EH
+static void
+dot_cfi_personality_id (int ignored ATTRIBUTE_UNUSED)
+{
+ struct fde_entry *fde;
+
+ if (frchain_now->frch_cfi_data == NULL)
+ {
+ as_bad (_("CFI instruction used without previous .cfi_startproc"));
+ ignore_rest_of_line ();
+ return;
+ }
+
+ fde = frchain_now->frch_cfi_data->cur_fde_data;
+ fde->personality_id = cfi_parse_const ();
+ demand_empty_rest_of_line ();
+
+ if (fde->personality_id == 0 || fde->personality_id > 3)
+ {
+ as_bad (_("wrong argument to .cfi_personality_id"));
+ return;
+ }
+}
+
+static void
+dot_cfi_fde_data (int ignored ATTRIBUTE_UNUSED)
+{
+ if (frchain_now->frch_cfi_data == NULL)
+ {
+ as_bad (_(".cfi_fde_data without corresponding .cfi_startproc"));
+ ignore_rest_of_line ();
+ return;