Changeset 1973 for binutils/trunk/gas/config/tc-arc.h

Timestamp:

Feb 6, 2017, 1:00:00 PM (8 years ago)

Author:

Silvan Scherrer

Message:

binutils: update trunk to version 2.27

Location:

binutils/trunk

Files:

• . (modified) (1 prop)
• gas/config/tc-arc.h (modified) (3 diffs)

binutils/trunk/gas/config/tc-arc.h ¶

@@ -1 +1 @@
 /* tc-arc.h - Macros and type defines for the ARC.
-   Copyright (C) 1994-2014 Free Software Foundation, Inc.
-   Contributed by Doug Evans (dje@cygnus.com).
+   Copyright (C) 2014-2016 Free Software Foundation, Inc.
+
+   Contributed by Claudiu Zissulescu (claziss@synopsys.com)
 
    This file is part of GAS, the GNU Assembler.
@@ -20 +21 @@
    02110-1301, USA.  */
 
-#define TC_ARC 1
-
-#define TARGET_BYTES_BIG_ENDIAN 0
-
+#include "opcode/arc.h"
+
+/* By convention, you should define this macro in the `.h' file.  For
+   example, `tc-m68k.h' defines `TC_M68K'.  You might have to use this
+   if it is necessary to add CPU specific code to the object format
+   file.  */
+#define TC_ARC
+
+/* We want local label support.  */
 #define LOCAL_LABELS_FB 1
 
+/* This macro is the BFD architecture to pass to
+   `bfd_set_arch_mach'.  */
 #define TARGET_ARCH bfd_arch_arc
 
+/* The `extsym - .' expressions can be emitted using PC-relative
+   relocs.  */
 #define DIFF_EXPR_OK
+
 #define REGISTER_PREFIX '%'
 
-#ifdef LITTLE_ENDIAN
-#undef LITTLE_ENDIAN
-#endif
-
-#ifdef BIG_ENDIAN
-#undef BIG_ENDIAN
-#endif
-
+#undef  LITTLE_ENDIAN
 #define LITTLE_ENDIAN   1234
 
+#undef  BIG_ENDIAN
 #define BIG_ENDIAN      4321
+
+#ifdef TARGET_BYTES_BIG_ENDIAN
+
+# define DEFAULT_TARGET_FORMAT  "elf32-bigarc"
+# define DEFAULT_BYTE_ORDER     BIG_ENDIAN
+
+#else
+/* You should define this macro to be non-zero if the target is big
+   endian, and zero if the target is little endian.  */
+# define TARGET_BYTES_BIG_ENDIAN 0
+
+# define DEFAULT_TARGET_FORMAT  "elf32-littlearc"
+# define DEFAULT_BYTE_ORDER     LITTLE_ENDIAN
+
+#endif /* TARGET_BYTES_BIG_ENDIAN.  */
 
 /* The endianness of the target format may change based on command
    line arguments.  */
-extern const char * arc_target_format;
-
-#define DEFAULT_TARGET_FORMAT  "elf32-littlearc"
-#define TARGET_FORMAT          arc_target_format
-#define DEFAULT_BYTE_ORDER     LITTLE_ENDIAN
+extern const char *arc_target_format;
+
+/* This macro is the BFD target name to use when creating the output
+   file.  This will normally depend upon the `OBJ_FMT' macro.  */
+#define TARGET_FORMAT arc_target_format
+
+/* `md_short_jump_size'
+   `md_long_jump_size'
+   `md_create_short_jump'
+   `md_create_long_jump'
+
+   If `WORKING_DOT_WORD' is defined, GAS will not do broken word
+   processing (*note Broken words::.).  Otherwise, you should set
+   `md_short_jump_size' to the size of a short jump (a jump that is
+   just long enough to jump around a long jmp) and `md_long_jump_size'
+   to the size of a long jump (a jump that can go anywhere in the
+   function).  You should define `md_create_short_jump' to create a
+   short jump around a long jump, and define `md_create_long_jump' to
+   create a long jump.  */
 #define WORKING_DOT_WORD
-#define LISTING_HEADER         "ARC GAS "
-
-/* The ARC needs to parse reloc specifiers in .word.  */
-
-extern bfd_reloc_code_real_type arc_parse_cons_expression (struct expressionS *,
-                                                           unsigned);
-#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) \
-  arc_parse_cons_expression (EXP, NBYTES)
-
-extern void arc_cons_fix_new (struct frag *, int, int, struct expressionS *,
-                              bfd_reloc_code_real_type);
-#define TC_CONS_FIX_NEW(FRAG, WHERE, NBYTES, EXP, RELOC)        \
-  arc_cons_fix_new (FRAG, WHERE, NBYTES, EXP, RELOC)
-
-#define DWARF2_LINE_MIN_INSN_LENGTH 4
-
-/* Values passed to md_apply_fix don't include the symbol value.  */
+
+#define LISTING_HEADER "ARC GAS "
+
+/* The number of bytes to put into a word in a listing.  This affects
+   the way the bytes are clumped together in the listing.  For
+   example, a value of 2 might print `1234 5678' where a value of 1
+   would print `12 34 56 78'.  The default value is 4.  */
+#define LISTING_WORD_SIZE 2
+
+/* If you define this macro, it should return the position from which
+   the PC relative adjustment for a PC relative fixup should be made.
+   On many processors, the base of a PC relative instruction is the
+   next instruction, so this macro would return the length of an
+   instruction, plus the address of the PC relative fixup.  The latter
+   can be calculated as fixp->fx_where +
+   fixp->fx_frag->fr_address.  */
+extern long md_pcrel_from_section (struct fix *, segT);
+#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC)
+
+/* [ ] is index operator.  */
+#define NEED_INDEX_OPERATOR
+
+#define MAX_MEM_FOR_RS_ALIGN_CODE (1+2)
+
+/* HANDLE_ALIGN called after all the assembly has been done,
+   so we can fill in all the rs_align_code type frags with
+   nop instructions.  */
+#define HANDLE_ALIGN(FRAGP)      arc_handle_align (FRAGP)
+
+/* Values passed to md_apply_fix3 don't include the symbol value.  */
 #define MD_APPLY_SYM_VALUE(FIX) 0
 
@@ -73 +120 @@
    visible symbols can be overridden.  */
 #define EXTERN_FORCE_RELOC 0
+
+/* You may define this macro to generate a fixup for a data allocation
+   pseudo-op.  */
+#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC)     \
+  arc_cons_fix_new ((FRAG), (OFF), (LEN), (EXP), (RELOC))
+
+/* We don't want gas to fixup the following program memory related
+   relocations.  Check also that fx_addsy is not NULL, in order to
+   make sure that the fixup refers to some sort of label.  */
+#define TC_VALIDATE_FIX(FIXP,SEG,SKIP)                               \
+  if ((FIXP->fx_r_type == BFD_RELOC_ARC_GOTPC32                      \
+       || FIXP->fx_r_type == BFD_RELOC_ARC_PLT32                     \
+       || FIXP->fx_r_type == BFD_RELOC_ARC_S25W_PCREL_PLT            \
+       || FIXP->fx_r_type == BFD_RELOC_ARC_S25H_PCREL_PLT            \
+       || FIXP->fx_r_type == BFD_RELOC_ARC_S21W_PCREL_PLT            \
+       || FIXP->fx_r_type == BFD_RELOC_ARC_S21H_PCREL_PLT)           \
+      && FIXP->fx_addsy != NULL                                      \
+      && FIXP->fx_subsy == NULL)                                     \
+    {                                                                \
+      symbol_mark_used_in_reloc (FIXP->fx_addsy);                    \
+      goto SKIP;                                                     \
+    }
+
+/* BFD_RELOC_ARC_TLS_GD_LD may use fx_subsy to store a label that is
+   later turned into fx_offset.  */
+#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \
+  ((FIX)->fx_r_type == BFD_RELOC_ARC_TLS_GD_LD)
+
+#define TC_VALIDATE_FIX_SUB(FIX, SEG) \
+  ((md_register_arithmetic || (SEG) != reg_section) \
+   && ((FIX)->fx_r_type == BFD_RELOC_GPREL32 \
+       || (FIX)->fx_r_type == BFD_RELOC_GPREL16 \
+       || (FIX)->fx_r_type == BFD_RELOC_ARC_TLS_DTPOFF \
+       || (FIX)->fx_r_type == BFD_RELOC_ARC_TLS_DTPOFF_S9 \
+       || TC_FORCE_RELOCATION_SUB_LOCAL (FIX, SEG)))
+
+/* We use this to mark the end-loop label.  We use this mark for ZOL
+   validity checks.  */
+#define TC_SYMFIELD_TYPE   unsigned int
+#define ARC_GET_FLAG(s)   (*symbol_get_tc (s))
+#define ARC_SET_FLAG(s,v) (*symbol_get_tc (s) |= (v))
+
+/* The symbol is a ZOL's end loop label.  */
+#define ARC_FLAG_ZOL      (1 << 0)
+/* The symbol is an AUX register.  */
+#define ARC_FLAG_AUX      (1 << 1)
+
+/* We use this hook to check the validity of the last to instructions
+   of a ZOL.  */
+#define tc_frob_label(S)  arc_frob_label (S)
+
+#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
+#define DYNAMIC_STRUCT_NAME "_DYNAMIC"
+
+/* We need to take care of not having section relative fixups for the
+   fixups with respect to Position Independent Code.  */
+#define tc_fix_adjustable(FIX)  tc_arc_fix_adjustable(FIX)
+
+/* This hook is required to parse register names as operands.  */
+#define md_parse_name(name, exp, m, c) arc_parse_name (name, exp)
+
+/* Used within frags to pass some information to some relaxation
+   machine dependent values.  */
+#define TC_FRAG_TYPE struct arc_relax_type
+
+/* Adjust non PC-rel values at relaxation time.  */
+#define TC_PCREL_ADJUST(F) arc_pcrel_adjust (F)
+
+/* Adjust symbol table.  */
+#define obj_adjust_symtab() arc_adjust_symtab ()
+
+extern void arc_adjust_symtab (void);
+extern int arc_pcrel_adjust (fragS *);
+extern bfd_boolean arc_parse_name (const char *, struct expressionS *);
+extern int tc_arc_fix_adjustable (struct fix *);
+extern void arc_handle_align (fragS *);
+extern void arc_cons_fix_new (fragS *, int, int, expressionS *,
+                              bfd_reloc_code_real_type);
+extern void arc_frob_label (symbolS *);
+extern void tc_arc_frame_initial_instructions (void);
+extern int tc_arc_regname_to_dw2regnum (char *regname);
+
+/* The blink register is r31.  */
+#define DWARF2_DEFAULT_RETURN_COLUMN    31
+/* Registers are generally saved at negative offsets to the CFA.  */
+#define DWARF2_CIE_DATA_ALIGNMENT       (-4)
+
+/* We want .cfi_* pseudo-ops for generating unwind info.  */
+#define TARGET_USE_CFIPOP 1
+
+/* CFI hooks.  */
+#define tc_cfi_frame_initial_instructions  tc_arc_frame_initial_instructions
+#define tc_regname_to_dw2regnum tc_arc_regname_to_dw2regnum
+
+/* Define the NOPs.  */
+#define NOP_OPCODE_S   0x000078E0
+#define NOP_OPCODE_L   0x264A7000 /* mov 0,0.  */
+
+#define MAX_FLAG_NAME_LENGTH 7
+
+struct arc_flags
+{
+  /* Name of the parsed flag.  */
+  char name[MAX_FLAG_NAME_LENGTH + 1];
+
+  /* Pointer to arc flags.  */
+  const struct arc_flag_operand *flgp;
+};
+
+extern const relax_typeS md_relax_table[];
+#define TC_GENERIC_RELAX_TABLE md_relax_table
+
+/* Used to construct instructions at md_convert_frag stage of
+   relaxation.  */
+struct arc_relax_type
+{
+  /* Dictates whether the pc-relativity should be kept in mind when
+     relax_frag is called or whether the pc-relativity should be
+     solved outside of relaxation.  For clarification: BL(_S) and
+     B(_S) use pcrel == 1 and ADD with a solvable expression as 3rd
+     operand use pcrel == 0.  */
+  unsigned char pcrel;
+
+  /* Expressions that dictate the operands.  Used for re-assembling in
+     md_convert_frag.  */
+  expressionS tok[MAX_INSN_ARGS];
+
+  /* Number of tok (i.e. number of operands).  Used for re-assembling
+     in md_convert_frag.  */
+  int ntok;
+
+  /* Flags of instruction.  Used for re-assembling in
+     md_convert_frag.  */
+  struct arc_flags pflags[MAX_INSN_FLGS];
+
+  /* Number of flags.  Used for re-assembling in md_convert_frag.  */
+  int nflg;
+};