19990502 sourceware importbinu_ss_19990502

1 files changed, 164 insertions, 0 deletions

diff --git a/gas/config/tc-sparc.h b/gas/config/tc-sparc.h
new file mode 100644
index 0000000..2a05764
--- /dev/null
+++ b/gas/config/tc-sparc.h
@@ -0,0 +1,164 @@
+/* tc-sparc.h - Macros and type defines for the sparc.
+   Copyright (C) 1989, 90-96, 97, 98, 1999 Free Software Foundation, Inc.
+
+   This file is part of GAS, the GNU Assembler.
+
+   GAS is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2,
+   or (at your option) any later version.
+
+   GAS is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+   the GNU General Public License for more details.
+
+   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.  */
+
+#ifndef TC_SPARC
+#define TC_SPARC 1
+
+#ifdef ANSI_PROTOTYPES
+struct frag;
+#endif
+
+/* This is used to set the default value for `target_big_endian'.  */
+#define TARGET_BYTES_BIG_ENDIAN 1
+
+#define LOCAL_LABELS_FB 1
+
+#define TARGET_ARCH bfd_arch_sparc
+
+extern const char *sparc_target_format PARAMS ((void));
+#define TARGET_FORMAT sparc_target_format ()
+
+#if 0
+#ifdef TE_SPARCAOUT
+/* Bi-endian support may eventually be unconditional, but until things are
+   working well it's only provided for targets that need it.  */
+#define SPARC_BIENDIAN
+#endif
+#endif
+/* Make it unconditional and check if -EL is valid after option parsing */
+#define SPARC_BIENDIAN
+
+#define WORKING_DOT_WORD
+
+#define md_convert_frag(b,s,f)		{as_fatal (_("sparc convert_frag\n"));}
+#define md_estimate_size_before_relax(f,s) \
+			(as_fatal(_("estimate_size_before_relax called")),1)
+
+#define LISTING_HEADER "SPARC GAS "
+
+extern int sparc_pic_code;
+
+#define md_do_align(n, fill, len, max, around)				\
+if ((n) && (n) <= 10 && !need_pass_2 && !(fill)				\
+    && now_seg != data_section && now_seg != bss_section)		\
+  {									\
+    char *p;								\
+    p = frag_var (rs_align_code, 1 << n, 1, (relax_substateT) 1024,	\
+                  (symbolS *) 0, (offsetT) (n), (char *) 0);		\
+    *p = 0x00;								\
+    goto around;							\
+  }
+
+/* We require .word, et. al., to be aligned correctly.  */
+#define md_cons_align(nbytes) sparc_cons_align (nbytes)
+extern void sparc_cons_align PARAMS ((int));
+#define HANDLE_ALIGN(fragp) sparc_handle_align (fragp)
+extern void sparc_handle_align PARAMS ((struct frag *));
+
+#if defined (OBJ_ELF) || defined (OBJ_AOUT)
+
+/* This expression evaluates to false if the relocation is for a local
+   object for which we still want to do the relocation at runtime.
+   True if we are willing to perform this relocation while building
+   the .o file.
+
+   If the reloc is against an externally visible symbol, then the
+   a.out assembler should not do the relocation if generating PIC, and
+   the ELF assembler should never do the relocation.  */
+
+#ifdef OBJ_ELF
+#define obj_relocate_extern 0
+#else
+#define obj_relocate_extern (! sparc_pic_code)
+#endif
+
+#define TC_RELOC_RTSYM_LOC_FIXUP(FIX)  \
+  (obj_relocate_extern \
+   || (FIX)->fx_addsy == NULL \
+   || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
+       && ! S_IS_WEAK ((FIX)->fx_addsy) \
+       && S_IS_DEFINED ((FIX)->fx_addsy) \
+       && ! S_IS_COMMON ((FIX)->fx_addsy)))
+#endif
+
+/* I know that "call 0" fails in sparc-coff if this doesn't return 1.  I
+   don't know about other relocation types, or other formats, yet.  */
+#ifdef OBJ_COFF
+#define TC_FORCE_RELOCATION(FIXP)	\
+	((FIXP)->fx_r_type == BFD_RELOC_32_PCREL_S2 \
+	 && ((FIXP)->fx_addsy == 0 \
+	     || S_GET_SEGMENT ((FIXP)->fx_addsy) == absolute_section))
+#define RELOC_REQUIRES_SYMBOL
+#endif
+
+#ifdef OBJ_ELF
+#define TC_FORCE_RELOCATION(fixp) elf32_sparc_force_relocation(fixp)
+extern int elf32_sparc_force_relocation PARAMS ((struct fix *));
+#endif
+
+#define MD_APPLY_FIX3
+#define TC_HANDLES_FX_DONE
+
+#ifdef OBJ_ELF
+/* Keep relocations against global symbols.  Don't turn them into
+   relocations against sections.  This is required for the dynamic
+   linker to operate properly.  When generating PIC, we need to keep
+   any non PC relative reloc.  */
+#define tc_fix_adjustable(FIX)						\
+  (! S_IS_EXTERNAL ((FIX)->fx_addsy)					\
+   && ! S_IS_WEAK ((FIX)->fx_addsy)					\
+   && (! sparc_pic_code							\
+       || (FIX)->fx_pcrel						\
+       || ((FIX)->fx_subsy != NULL					\
+	   && (S_GET_SEGMENT ((FIX)->fx_subsy)				\
+	       == S_GET_SEGMENT ((FIX)->fx_addsy)))			\
+       || strchr (S_GET_NAME ((FIX)->fx_addsy), '\001') != NULL		\
+       || strchr (S_GET_NAME ((FIX)->fx_addsy), '\002') != NULL))
+#endif
+
+#ifdef OBJ_AOUT
+/* When generating PIC code, we must not adjust any reloc which will
+   turn into a reloc against the global offset table, nor any reloc
+   which we will need if a symbol is overridden.  */
+#define tc_fix_adjustable(FIX)						\
+  (! sparc_pic_code							\
+   || ((FIX)->fx_pcrel							\
+       && ((FIX)->fx_addsy == NULL					\
+	   || (! S_IS_EXTERNAL ((FIX)->fx_addsy)			\
+	       && ! S_IS_WEAK ((FIX)->fx_addsy))))			\
+   || (FIX)->fx_r_type == BFD_RELOC_16					\
+   || (FIX)->fx_r_type == BFD_RELOC_32)
+#endif
+
+#define elf_tc_final_processing sparc_elf_final_processing
+extern void sparc_elf_final_processing PARAMS ((void));
+
+#define md_operand(x)
+
+extern void sparc_md_end PARAMS ((void));
+#define md_end() sparc_md_end ()
+
+#endif
+
+#define TC_CONS_FIX_NEW cons_fix_new_sparc
+extern void cons_fix_new_sparc
+  PARAMS ((struct frag *, int, unsigned int, struct expressionS *));
+
+/* end of tc-sparc.h */