/* tc-mmix.h -- Header file for tc-mmix.c.
- Copyright (C) 2001 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
Written by Hans-Peter Nilsson (hp@bitrange.com).
This file is part of GAS, the GNU Assembler.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ 02111-1307, USA. */
#define TC_MMIX
&& (name[0] == '@' \
? (! is_part_of_name (name[1]) \
&& mmix_current_location (current_location, exp)) \
- : ((name[0] == ':' || isupper (name[0])) \
+ : ((name[0] == ':' || ISUPPER (name[0])) \
&& mmix_parse_predefined_name (name, exp))))
extern char *mmix_prefix_name PARAMS ((char *));
/* Since integer_constant is local to expr.c, we have to make this a
macro. FIXME: Do it cleaner. */
#define md_operand(exp) \
- do { \
- if (input_line_pointer[0] == '#') \
+ do \
{ \
- input_line_pointer++; \
- integer_constant (16, (exp)); \
+ if (input_line_pointer[0] == '#') \
+ { \
+ input_line_pointer++; \
+ integer_constant (16, (exp)); \
+ } \
+ else if (input_line_pointer[0] == '&' \
+ && input_line_pointer[1] != '&') \
+ as_bad (_("`&' serial number operator is not supported")); \
+ else \
+ mmix_fb_label (exp); \
} \
- else if (input_line_pointer[0] == '&' \
- && input_line_pointer[1] != '&') \
- as_bad (_("`&' serial number operator is not supported")); \
- else \
- mmix_fb_label (exp); \
- } while (0)
-
+ while (0)
/* Gas dislikes the 2ADD, 8ADD etc. insns, so we have to assemble them in
the error-recovery loop. Hopefully there are no significant
differences. Also, space on a line isn't gracefully handled. */
-extern int mmix_assemble_return_nonzero PARAMS ((char *));
+extern int mmix_assemble_return_nonzero PARAMS ((char *));
#define tc_unrecognized_line(c) \
((c) == ' ' \
|| (((c) == '1' || (c) == '2' || (c) == '4' || (c) == '8') \
extern const struct relax_type mmix_relax_table[];
#define TC_GENERIC_RELAX_TABLE mmix_relax_table
-/* We use the relax table for everything except the GREG frags. */
+/* We use the relax table for everything except the GREG frags and PUSHJ. */
extern long mmix_md_relax_frag PARAMS ((segT, fragS *, long));
#define md_relax_frag mmix_md_relax_frag
-#define tc_fix_adjustable(X) \
- ((! (X)->fx_addsy \
- || (! S_IS_WEAK ((X)->fx_addsy) \
- && S_GET_SEGMENT ((X)->fx_addsy) != reg_section)) \
- && (X)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
- && (X)->fx_r_type != BFD_RELOC_VTABLE_ENTRY)
+#define tc_fix_adjustable(FIX) \
+ (((FIX)->fx_addsy == NULL \
+ || S_GET_SEGMENT ((FIX)->fx_addsy) != reg_section) \
+ && (FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
+ && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
+ && (FIX)->fx_r_type != BFD_RELOC_MMIX_LOCAL)
/* Adjust symbols which are registers. */
#define tc_adjust_symtab() mmix_adjust_symtab ()
extern void mmix_adjust_symtab PARAMS ((void));
-/* Avoid outputting GAS register section symbols. This happens when the
- assembly had errors, and will propagate to an assert in BFD. FIXME:
- It seems the symbol output when-errors is a bug in GAS. Fix that
- some time. See also tc_gen_reloc.
-
- Here's where we make all symbols global, when so requested.
+/* Here's where we make all symbols global, when so requested.
We must avoid doing that for expression symbols or section symbols,
though. */
extern int mmix_globalize_symbols;
-#define tc_frob_symbol(sym, punt) \
- do { \
- if (S_GET_SEGMENT (sym) == reg_section \
- || (symp) == section_symbol (absolute_section)) \
- (punt) = 1; \
- \
- if (mmix_globalize_symbols \
- && ! symbol_section_p (sym) \
- && symp != section_symbol (absolute_section) \
- && (! S_IS_LOCAL (sym) \
- || S_GET_SEGMENT (sym) == reg_section) \
- && (S_GET_SEGMENT (sym) != reg_section \
- || (S_GET_NAME (sym)[0] != '$' \
- && S_GET_VALUE (sym) < 256))) \
- S_SET_EXTERNAL (sym); \
- } while (0)
+#define tc_frob_symbol(sym, punt) \
+ do \
+ { \
+ if (S_GET_SEGMENT (sym) == reg_section) \
+ { \
+ if (S_GET_NAME (sym)[0] != '$' \
+ && S_GET_VALUE (sym) < 256) \
+ { \
+ if (mmix_globalize_symbols) \
+ S_SET_EXTERNAL (sym); \
+ else \
+ symbol_mark_used_in_reloc (sym); \
+ } \
+ } \
+ else if (mmix_globalize_symbols \
+ && ! symbol_section_p (sym) \
+ && sym != section_symbol (absolute_section) \
+ && ! S_IS_LOCAL (sym)) \
+ S_SET_EXTERNAL (sym); \
+ } \
+ while (0)
+
+/* No shared lib support, so we don't need to ensure externally
+ visible symbols can be overridden. */
+#define EXTERN_FORCE_RELOC 0
/* When relaxing, we need to emit various relocs we otherwise wouldn't. */
#define TC_FORCE_RELOCATION(fix) mmix_force_relocation (fix)
extern int mmix_force_relocation PARAMS ((struct fix *));
/* Call md_pcrel_from_section(), not md_pcrel_from(). */
-#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
+#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
extern long md_pcrel_from_section PARAMS ((struct fix *, segT));
#define md_section_align(seg, size) (size)
fixups are done and relocs are output. Similarly for each unknown
symbol. */
extern void mmix_frob_file PARAMS ((void));
-#define tc_frob_file mmix_frob_file
+#define tc_frob_file_before_fix mmix_frob_file
/* Used by mmix_frob_file. Hangs on section symbols and unknown symbols. */
struct mmix_symbol_gregs;
#define TC_SYMFIELD_TYPE struct mmix_symbol_gregs *
-extern void mmix_frob_file_before_adjust PARAMS ((void));
-#define tc_frob_file_before_adjust mmix_frob_file_before_adjust
+/* Used by relaxation, counting maximum needed PUSHJ stubs for a section. */
+struct mmix_segment_info_type
+ {
+ /* We only need to keep track of the last stubbable frag because
+ there's no less hackish way to keep track of different relaxation
+ rounds. */
+ fragS *last_stubfrag;
+ bfd_size_type nstubs;
+ };
+#define TC_SEGMENT_INFO_TYPE struct mmix_segment_info_type
extern void mmix_md_elf_section_change_hook PARAMS ((void));
#define md_elf_section_change_hook mmix_md_elf_section_change_hook
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