gas/

[deliverable/binutils-gdb.git] / gas / config / tc-ppc.h

diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h
index e6d32d653e0715c4a609e3f09df0d5b05138ff34..f7c2da619cbc8311d67f7c2b9186f39e715e9639 100644 (file)
--- a/gas/config/tc-ppc.h
+++ b/gas/config/tc-ppc.h
@@ -1,5 +1,6 @@
 /* tc-ppc.h -- Header file for tc-ppc.c.
 /* tc-ppc.h -- Header file for tc-ppc.c.

-   Copyright (C) 1994, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
+   Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+   2004, 2005 Free Software Foundation, Inc.

    Written by Ian Lance Taylor, Cygnus Support.
 
    This file is part of GAS, the GNU Assembler.
    Written by Ian Lance Taylor, Cygnus Support.
 
    This file is part of GAS, the GNU Assembler.


@@ -16,24 +17,18 @@
 
    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
 
    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. */
+   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */

 
 #define TC_PPC
 
 
 #define TC_PPC
 

-#ifdef ANSI_PROTOTYPES

 struct fix;
 struct fix;

-#endif

 
 /* Set the endianness we are using.  Default to big endian.  */
 #ifndef TARGET_BYTES_BIG_ENDIAN
 #define TARGET_BYTES_BIG_ENDIAN 1
 #endif
 
 
 /* Set the endianness we are using.  Default to big endian.  */
 #ifndef TARGET_BYTES_BIG_ENDIAN
 #define TARGET_BYTES_BIG_ENDIAN 1
 #endif
 

-#ifndef BFD_ASSEMBLER
- #error PowerPC support requires BFD_ASSEMBLER
-#endif
-

 /* If OBJ_COFF is defined, and TE_PE is not defined, we are assembling
    XCOFF for AIX or PowerMac.  If TE_PE is defined, we are assembling
    COFF for Windows NT.  */
 /* If OBJ_COFF is defined, and TE_PE is not defined, we are assembling
    XCOFF for AIX or PowerMac.  If TE_PE is defined, we are assembling
    COFF for Windows NT.  */


@@ -46,31 +41,16 @@ struct fix;
 
 /* The target BFD architecture.  */
 #define TARGET_ARCH (ppc_arch ())
 
 /* The target BFD architecture.  */
 #define TARGET_ARCH (ppc_arch ())

+#define TARGET_MACH (ppc_mach ())

 extern enum bfd_architecture ppc_arch PARAMS ((void));
 extern enum bfd_architecture ppc_arch PARAMS ((void));

+extern unsigned long ppc_mach PARAMS ((void));

 
 /* Whether or not the target is big endian */
 extern int target_big_endian;
 
 /* The target BFD format.  */
 
 /* Whether or not the target is big endian */
 extern int target_big_endian;
 
 /* The target BFD format.  */

-#ifdef OBJ_COFF
-#ifdef TE_PE
-#define TARGET_FORMAT (target_big_endian ? "pe-powerpc" : "pe-powerpcle")
-#else
-#define TARGET_FORMAT "aixcoff-rs6000"
-#endif
-#endif
-
-/* PowerMac has a BFD slightly different from AIX's.  */
-#ifdef TE_POWERMAC
-#ifdef TARGET_FORMAT
-#undef TARGET_FORMAT
-#endif
-#define TARGET_FORMAT "xcoff-powermac"
-#endif
-
-#ifdef OBJ_ELF
-#define TARGET_FORMAT (target_big_endian ? "elf32-powerpc" : "elf32-powerpcle")
-#endif
+#define TARGET_FORMAT (ppc_target_format ())
+extern char *ppc_target_format PARAMS ((void));

 
 /* Permit temporary numeric labels.  */
 #define LOCAL_LABELS_FB 1
 
 /* Permit temporary numeric labels.  */
 #define LOCAL_LABELS_FB 1


@@ -96,8 +76,39 @@ extern int target_big_endian;
 /* We don't need to handle .word strangely.  */
 #define WORKING_DOT_WORD
 
 /* We don't need to handle .word strangely.  */
 #define WORKING_DOT_WORD
 

-/* We set the fx_done field appropriately in md_apply_fix.  */
-#define TC_HANDLES_FX_DONE
+#define MAX_MEM_FOR_RS_ALIGN_CODE 4
+#define HANDLE_ALIGN(FRAGP)                                            \
+  if ((FRAGP)->fr_type == rs_align_code)                               \
+    {                                                                  \
+      valueT count = ((FRAGP)->fr_next->fr_address                     \
+                     - ((FRAGP)->fr_address + (FRAGP)->fr_fix));       \
+      if (count != 0 && (count & 3) == 0)                              \
+       {                                                               \
+         char *dest = (FRAGP)->fr_literal + (FRAGP)->fr_fix;           \
+                                                                       \
+         (FRAGP)->fr_var = 4;                                          \
+         if (target_big_endian)                                        \
+           {                                                           \
+             *dest++ = 0x60;                                           \
+             *dest++ = 0;                                              \
+             *dest++ = 0;                                              \
+             *dest++ = 0;                                              \
+           }                                                           \
+         else                                                          \
+           {                                                           \
+             *dest++ = 0;                                              \
+             *dest++ = 0;                                              \
+             *dest++ = 0;                                              \
+             *dest++ = 0x60;                                           \
+           }                                                           \
+       }                                                               \
+    }
+
+#define md_frag_check(FRAGP) \
+  if ((FRAGP)->has_code                                                        \
+      && (((FRAGP)->fr_address + (FRAGP)->insn_addr) & 3) != 0)                \
+    as_bad_where ((FRAGP)->fr_file, (FRAGP)->fr_line,                  \
+                 _("instruction address is not a multiple of 4"));

 \f
 #ifdef TE_PE
 
 \f
 #ifdef TE_PE
 


@@ -105,7 +116,7 @@ extern int target_big_endian;
 #define LEX_QM 1
 
 /* Don't adjust TOC relocs.  */
 #define LEX_QM 1
 
 /* Don't adjust TOC relocs.  */

-#define tc_fix_adjustable(fixp) ppc_pe_fix_adjustable (fixp)
+#define tc_fix_adjustable(FIX) ppc_pe_fix_adjustable (FIX)

 extern int ppc_pe_fix_adjustable PARAMS ((struct fix *));
 
 #endif
 extern int ppc_pe_fix_adjustable PARAMS ((struct fix *));
 
 #endif


@@ -165,13 +176,9 @@ extern void ppc_symbol_new_hook PARAMS ((symbolS *));
 extern void ppc_frob_label PARAMS ((symbolS *));
 
 /* TOC relocs requires special handling.  */
 extern void ppc_frob_label PARAMS ((symbolS *));
 
 /* TOC relocs requires special handling.  */

-#define tc_fix_adjustable(fixp) ppc_fix_adjustable (fixp)
+#define tc_fix_adjustable(FIX) ppc_fix_adjustable (FIX)

 extern int ppc_fix_adjustable PARAMS ((struct fix *));
 
 extern int ppc_fix_adjustable PARAMS ((struct fix *));
 

-/* A relocation from one csect to another must be kept.  */
-#define TC_FORCE_RELOCATION(FIXP) ppc_force_relocation (FIXP)
-extern int ppc_force_relocation PARAMS ((struct fix *));
-

 /* We need to set the section VMA.  */
 #define tc_frob_section(sec) ppc_frob_section (sec)
 extern void ppc_frob_section PARAMS ((asection *));
 /* We need to set the section VMA.  */
 #define tc_frob_section(sec) ppc_frob_section (sec)
 extern void ppc_frob_section PARAMS ((asection *));


@@ -184,27 +191,24 @@ extern int ppc_frob_symbol PARAMS ((symbolS *));
 #define tc_adjust_symtab() ppc_adjust_symtab ()
 extern void ppc_adjust_symtab PARAMS ((void));
 
 #define tc_adjust_symtab() ppc_adjust_symtab ()
 extern void ppc_adjust_symtab PARAMS ((void));
 

-/* Niclas Andersson <nican@ida.liu.se> says this is needed.  */
-#define SUB_SEGMENT_ALIGN(SEG) 2
+/* We also need to copy, in particular, the class of the symbol,
+   over what obj-coff would otherwise have copied.  */
+#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest,src)                   \
+do {                                                           \
+  if (SF_GET_GET_SEGMENT (dest))                               \
+    S_SET_SEGMENT (dest, S_GET_SEGMENT (src));                 \
+  symbol_get_tc (dest)->size = symbol_get_tc (src)->size;      \
+  symbol_get_tc (dest)->align = symbol_get_tc (src)->align;    \
+  symbol_get_tc (dest)->class = symbol_get_tc (src)->class;    \
+  symbol_get_tc (dest)->within = symbol_get_tc (src)->within;  \
+} while (0)

 
 #endif /* OBJ_XCOFF */
 
 
 #endif /* OBJ_XCOFF */
 

-#ifdef OBJ_ELF
+extern const char       ppc_symbol_chars[];
+#define tc_symbol_chars ppc_symbol_chars

 
 

-/* Branch prediction relocations must force relocation, as must
-   the vtable description relocs.  */
-#define TC_FORCE_RELOCATION(FIXP)                                      \
-((FIXP)->fx_r_type == BFD_RELOC_PPC_B16_BRTAKEN                                \
- || (FIXP)->fx_r_type == BFD_RELOC_PPC_B16_BRNTAKEN                    \
- || (FIXP)->fx_r_type == BFD_RELOC_PPC_BA16_BRTAKEN                    \
- || (FIXP)->fx_r_type == BFD_RELOC_PPC_BA16_BRNTAKEN                   \
- || (FIXP)->fx_r_type == BFD_RELOC_VTABLE_INHERIT                      \
- || (FIXP)->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
-
-#define TC_FORCE_RELOCATION_SECTION(FIXP,SEC)                          \
-(TC_FORCE_RELOCATION (FIXP)                                            \
- || ((FIXP)->fx_addsy && !(FIXP)->fx_subsy                             \
-     && S_GET_SEGMENT ((FIXP)->fx_addsy) != SEC))
+#ifdef OBJ_ELF

 
 /* Support for SHF_EXCLUDE and SHT_ORDERED */
 extern int ppc_section_letter PARAMS ((int, char **));
 
 /* Support for SHF_EXCLUDE and SHT_ORDERED */
 extern int ppc_section_letter PARAMS ((int, char **));


@@ -217,60 +221,48 @@ extern int ppc_section_flags PARAMS ((int, int, int));
 #define md_elf_section_word(STR, LEN)          ppc_section_word (STR, LEN)
 #define md_elf_section_flags(FLAGS, ATTR, TYPE)        ppc_section_flags (FLAGS, ATTR, TYPE)
 
 #define md_elf_section_word(STR, LEN)          ppc_section_word (STR, LEN)
 #define md_elf_section_flags(FLAGS, ATTR, TYPE)        ppc_section_flags (FLAGS, ATTR, TYPE)
 

-/* Add extra PPC sections -- Note, for now, make .sbss2 and .PPC.EMB.sbss0 a
-   normal section, and not a bss section so that the linker doesn't crater
-   when trying to make more than 2 sections.  */
-#define ELF_TC_SPECIAL_SECTIONS \
-  { ".tags",           SHT_ORDERED,    SHF_ALLOC }, \
-  { ".sdata",          SHT_PROGBITS,   SHF_ALLOC + SHF_WRITE }, \
-  { ".sbss",           SHT_NOBITS,     SHF_ALLOC + SHF_WRITE }, \
-  { ".sdata2",         SHT_PROGBITS,   SHF_ALLOC }, \
-  { ".sbss2",          SHT_PROGBITS,   SHF_ALLOC }, \
-  { ".PPC.EMB.sdata0", SHT_PROGBITS,   SHF_ALLOC }, \
-  { ".PPC.EMB.sbss0",  SHT_PROGBITS,   SHF_ALLOC },
-

 #define tc_comment_chars ppc_comment_chars
 extern const char *ppc_comment_chars;
 
 #define tc_comment_chars ppc_comment_chars
 extern const char *ppc_comment_chars;
 

-/* Keep relocations relative to the GOT, or non-PC relative. */
-#define tc_fix_adjustable(FIX)                                         \
-  ((FIX)->fx_r_type != BFD_RELOC_16_GOTOFF                             \
-   && (FIX)->fx_r_type != BFD_RELOC_LO16_GOTOFF                        \
-   && (FIX)->fx_r_type != BFD_RELOC_HI16_GOTOFF                        \
-   && (FIX)->fx_r_type != BFD_RELOC_HI16_S_GOTOFF                      \
-   && (FIX)->fx_r_type != BFD_RELOC_GPREL16                            \
-   && (FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT                     \
-   && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY                       \
-   && ! S_IS_EXTERNAL ((FIX)->fx_addsy)                                        \
-   && ! S_IS_WEAK ((FIX)->fx_addsy)                                    \
-   && ((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))
-
-/* We must never ever try to resolve references to externally visible
-   symbols in the assembler, because the .o file might go into a shared
-   library, and some other shared library might override that symbol.  */
-#define TC_RELOC_RTSYM_LOC_FIXUP(FIX)  \
-  ((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)))
+/* Keep relocations relative to the GOT, or non-PC relative.  */
+#define tc_fix_adjustable(FIX) ppc_fix_adjustable (FIX)
+extern int ppc_fix_adjustable PARAMS ((struct fix *));
+
+/* Values passed to md_apply_fix don't include symbol values.  */
+#define MD_APPLY_SYM_VALUE(FIX) 0
+
+#define tc_frob_file_before_adjust ppc_frob_file_before_adjust
+extern void ppc_frob_file_before_adjust PARAMS ((void));

 
 #endif /* OBJ_ELF */
 
 
 #endif /* OBJ_ELF */
 

-/* call md_apply_fix3 with segment instead of md_apply_fix */
-#define MD_APPLY_FIX3
+#if defined (OBJ_ELF) || defined (OBJ_XCOFF)
+#define TC_FORCE_RELOCATION(FIX) ppc_force_relocation (FIX)
+extern int ppc_force_relocation PARAMS ((struct fix *));
+#endif

 
 /* call md_pcrel_from_section, not md_pcrel_from */
 
 /* 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));
 
 extern long md_pcrel_from_section PARAMS ((struct fix *, segT));
 

-#define md_parse_name(name, exp) ppc_parse_name (name, exp)
+#define md_parse_name(name, exp, mode, c) ppc_parse_name (name, exp)

 extern int ppc_parse_name PARAMS ((const char *, struct expressionS *));
 
 #define md_operand(x)
 
 extern int ppc_parse_name PARAMS ((const char *, struct expressionS *));
 
 #define md_operand(x)
 

+#define md_cleanup() ppc_cleanup ()
+ extern void ppc_cleanup PARAMS ((void));
+
+#define TARGET_USE_CFIPOP 1
+
+#define tc_cfi_frame_initial_instructions ppc_cfi_frame_initial_instructions
+extern void ppc_cfi_frame_initial_instructions PARAMS ((void));
+
+#define tc_regname_to_dw2regnum tc_ppc_regname_to_dw2regnum
+extern int tc_ppc_regname_to_dw2regnum PARAMS ((const char *regname));
+
+extern int ppc_cie_data_alignment;
+
+#define DWARF2_LINE_MIN_INSN_LENGTH     4
+#define DWARF2_DEFAULT_RETURN_COLUMN    0x41
+#define DWARF2_CIE_DATA_ALIGNMENT       ppc_cie_data_alignment