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authorJing Yu <jingyu@google.com>2011-01-30 22:09:54 -0800
committerJing Yu <jingyu@google.com>2011-01-30 22:09:54 -0800
commita9a8b9e7e4aee6a3846ba62703283d10849bc0a6 (patch)
treebfd550c5e600ab0c227d3615fb5183127604870d /binutils-2.20.1/gas/config/tc-fr30.c
parent8a5a8339de3149b7f99caf08e9cb72467d60cd01 (diff)
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Upgrade binutils and gold.
upgrade binutils-2.19 to binutils-2.20.1 upgrade gold to a relatively new version binutils-20100303 Before, both binutils and gold were built from binutils-2.19. Now binutils will be built from binutils-2.20.1 and gold will be built from binutils-20100303. Change-Id: Ibd0130756723337d2b4783d5b1d5e5b02a1adc83
Diffstat (limited to 'binutils-2.20.1/gas/config/tc-fr30.c')
-rw-r--r--binutils-2.20.1/gas/config/tc-fr30.c420
1 files changed, 420 insertions, 0 deletions
diff --git a/binutils-2.20.1/gas/config/tc-fr30.c b/binutils-2.20.1/gas/config/tc-fr30.c
new file mode 100644
index 0000000..8e01fb2
--- /dev/null
+++ b/binutils-2.20.1/gas/config/tc-fr30.c
@@ -0,0 +1,420 @@
+/* tc-fr30.c -- Assembler for the Fujitsu FR30.
+ Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2009
+ 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 3, 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, 51 Franklin Street - Fifth Floor,
+ Boston, MA 02110-1301, USA. */
+
+#include "as.h"
+#include "safe-ctype.h"
+#include "subsegs.h"
+#include "symcat.h"
+#include "opcodes/fr30-desc.h"
+#include "opcodes/fr30-opc.h"
+#include "cgen.h"
+
+/* Structure to hold all of the different components describing
+ an individual instruction. */
+typedef struct
+{
+ const CGEN_INSN * insn;
+ const CGEN_INSN * orig_insn;
+ CGEN_FIELDS fields;
+#if CGEN_INT_INSN_P
+ CGEN_INSN_INT buffer [1];
+#define INSN_VALUE(buf) (*(buf))
+#else
+ unsigned char buffer [CGEN_MAX_INSN_SIZE];
+#define INSN_VALUE(buf) (buf)
+#endif
+ char * addr;
+ fragS * frag;
+ int num_fixups;
+ fixS * fixups [GAS_CGEN_MAX_FIXUPS];
+ int indices [MAX_OPERAND_INSTANCES];
+}
+fr30_insn;
+
+const char comment_chars[] = ";";
+const char line_comment_chars[] = "#";
+const char line_separator_chars[] = "|";
+const char EXP_CHARS[] = "eE";
+const char FLT_CHARS[] = "dD";
+
+#define FR30_SHORTOPTS ""
+const char * md_shortopts = FR30_SHORTOPTS;
+
+struct option md_longopts[] =
+{
+ {NULL, no_argument, NULL, 0}
+};
+size_t md_longopts_size = sizeof (md_longopts);
+
+int
+md_parse_option (int c ATTRIBUTE_UNUSED,
+ char *arg ATTRIBUTE_UNUSED)
+{
+ switch (c)
+ {
+ default:
+ return 0;
+ }
+ return 1;
+}
+
+void
+md_show_usage (FILE * stream)
+{
+ fprintf (stream, _(" FR30 specific command line options:\n"));
+}
+
+/* The target specific pseudo-ops which we support. */
+const pseudo_typeS md_pseudo_table[] =
+{
+ { "word", cons, 4 },
+ { NULL, NULL, 0 }
+};
+
+
+void
+md_begin (void)
+{
+ /* Initialize the `cgen' interface. */
+
+ /* Set the machine number and endian. */
+ gas_cgen_cpu_desc = fr30_cgen_cpu_open (CGEN_CPU_OPEN_MACHS, 0,
+ CGEN_CPU_OPEN_ENDIAN,
+ CGEN_ENDIAN_BIG,
+ CGEN_CPU_OPEN_END);
+ fr30_cgen_init_asm (gas_cgen_cpu_desc);
+
+ /* This is a callback from cgen to gas to parse operands. */
+ cgen_set_parse_operand_fn (gas_cgen_cpu_desc, gas_cgen_parse_operand);
+}
+
+void
+md_assemble (char *str)
+{
+ static int last_insn_had_delay_slot = 0;
+ fr30_insn insn;
+ char *errmsg;
+
+ /* Initialize GAS's cgen interface for a new instruction. */
+ gas_cgen_init_parse ();
+
+ insn.insn = fr30_cgen_assemble_insn
+ (gas_cgen_cpu_desc, str, & insn.fields, insn.buffer, & errmsg);
+
+ if (!insn.insn)
+ {
+ as_bad ("%s", errmsg);
+ return;
+ }
+
+ /* Doesn't really matter what we pass for RELAX_P here. */
+ gas_cgen_finish_insn (insn.insn, insn.buffer,
+ CGEN_FIELDS_BITSIZE (& insn.fields), 1, NULL);
+
+ /* Warn about invalid insns in delay slots. */
+ if (last_insn_had_delay_slot
+ && CGEN_INSN_ATTR_VALUE (insn.insn, CGEN_INSN_NOT_IN_DELAY_SLOT))
+ as_warn (_("Instruction %s not allowed in a delay slot."),
+ CGEN_INSN_NAME (insn.insn));
+
+ last_insn_had_delay_slot
+ = CGEN_INSN_ATTR_VALUE (insn.insn, CGEN_INSN_DELAY_SLOT);
+}
+
+/* The syntax in the manual says constants begin with '#'.
+ We just ignore it. */
+
+void
+md_operand (expressionS * expressionP)
+{
+ if (* input_line_pointer == '#')
+ {
+ input_line_pointer ++;
+ expression (expressionP);
+ }
+}
+
+valueT
+md_section_align (segT segment, valueT size)
+{
+ int align = bfd_get_section_alignment (stdoutput, segment);
+
+ return ((size + (1 << align) - 1) & (-1 << align));
+}
+
+symbolS *
+md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+/* Interface to relax_segment. */
+
+/* FIXME: Build table by hand, get it working, then machine generate. */
+
+const relax_typeS md_relax_table[] =
+{
+/* The fields are:
+ 1) most positive reach of this state,
+ 2) most negative reach of this state,
+ 3) how many bytes this mode will add to the size of the current frag
+ 4) which index into the table to try if we can't fit into this one. */
+
+ /* The first entry must be unused because an `rlx_more' value of zero ends
+ each list. */
+ {1, 1, 0, 0},
+
+ /* The displacement used by GAS is from the end of the 2 byte insn,
+ so we subtract 2 from the following. */
+ /* 16 bit insn, 8 bit disp -> 10 bit range.
+ This doesn't handle a branch in the right slot at the border:
+ the "& -4" isn't taken into account. It's not important enough to
+ complicate things over it, so we subtract an extra 2 (or + 2 in -ve
+ case). */
+ {511 - 2 - 2, -512 - 2 + 2, 0, 2 },
+ /* 32 bit insn, 24 bit disp -> 26 bit range. */
+ {0x2000000 - 1 - 2, -0x2000000 - 2, 2, 0 },
+ /* Same thing, but with leading nop for alignment. */
+ {0x2000000 - 1 - 2, -0x2000000 - 2, 4, 0 }
+};
+
+/* Return an initial guess of the length by which a fragment must grow to
+ hold a branch to reach its destination.
+ Also updates fr_type/fr_subtype as necessary.
+
+ Called just before doing relaxation.
+ Any symbol that is now undefined will not become defined.
+ The guess for fr_var is ACTUALLY the growth beyond fr_fix.
+ Whatever we do to grow fr_fix or fr_var contributes to our returned value.
+ Although it may not be explicit in the frag, pretend fr_var starts with a
+ 0 value. */
+
+int
+md_estimate_size_before_relax (fragS * fragP, segT segment)
+{
+ /* The only thing we have to handle here are symbols outside of the
+ current segment. They may be undefined or in a different segment in
+ which case linker scripts may place them anywhere.
+ However, we can't finish the fragment here and emit the reloc as insn
+ alignment requirements may move the insn about. */
+
+ if (S_GET_SEGMENT (fragP->fr_symbol) != segment)
+ {
+ /* The symbol is undefined in this segment.
+ Change the relaxation subtype to the max allowable and leave
+ all further handling to md_convert_frag. */
+ fragP->fr_subtype = 2;
+
+ {
+ const CGEN_INSN * insn;
+ int i;
+
+ /* Update the recorded insn.
+ Fortunately we don't have to look very far.
+ FIXME: Change this to record in the instruction the next higher
+ relaxable insn to use. */
+ for (i = 0, insn = fragP->fr_cgen.insn; i < 4; i++, insn++)
+ {
+ if ((strcmp (CGEN_INSN_MNEMONIC (insn),
+ CGEN_INSN_MNEMONIC (fragP->fr_cgen.insn))
+ == 0)
+ && CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED))
+ break;
+ }
+ if (i == 4)
+ abort ();
+
+ fragP->fr_cgen.insn = insn;
+ return 2;
+ }
+ }
+
+ /* Return the size of the variable part of the frag. */
+ return md_relax_table[fragP->fr_subtype].rlx_length;
+}
+
+/* *fragP has been relaxed to its final size, and now needs to have
+ the bytes inside it modified to conform to the new size.
+
+ Called after relaxation is finished.
+ fragP->fr_type == rs_machine_dependent.
+ fragP->fr_subtype is the subtype of what the address relaxed to. */
+
+void
+md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
+ segT sec ATTRIBUTE_UNUSED,
+ fragS *fragP ATTRIBUTE_UNUSED)
+{
+}
+
+/* Functions concerning relocs. */
+
+/* The location from which a PC relative jump should be calculated,
+ given a PC relative reloc. */
+
+long
+md_pcrel_from_section (fixS * fixP, segT sec)
+{
+ if (fixP->fx_addsy != (symbolS *) NULL
+ && (! S_IS_DEFINED (fixP->fx_addsy)
+ || S_GET_SEGMENT (fixP->fx_addsy) != sec))
+ /* The symbol is undefined (or is defined but not in this section).
+ Let the linker figure it out. */
+ return 0;
+
+ return (fixP->fx_frag->fr_address + fixP->fx_where) & ~1;
+}
+
+/* Return the bfd reloc type for OPERAND of INSN at fixup FIXP.
+ Returns BFD_RELOC_NONE if no reloc type can be found.
+ *FIXP may be modified if desired. */
+
+bfd_reloc_code_real_type
+md_cgen_lookup_reloc (const CGEN_INSN *insn ATTRIBUTE_UNUSED,
+ const CGEN_OPERAND *operand,
+ fixS *fixP)
+{
+ switch (operand->type)
+ {
+ case FR30_OPERAND_LABEL9: fixP->fx_pcrel = 1; return BFD_RELOC_FR30_9_PCREL;
+ case FR30_OPERAND_LABEL12: fixP->fx_pcrel = 1; return BFD_RELOC_FR30_12_PCREL;
+ case FR30_OPERAND_DISP10: return BFD_RELOC_FR30_10_IN_8;
+ case FR30_OPERAND_DISP9: return BFD_RELOC_FR30_9_IN_8;
+ case FR30_OPERAND_DISP8: return BFD_RELOC_FR30_8_IN_8;
+ case FR30_OPERAND_UDISP6: return BFD_RELOC_FR30_6_IN_4;
+ case FR30_OPERAND_I8: return BFD_RELOC_8;
+ case FR30_OPERAND_I32: return BFD_RELOC_FR30_48;
+ case FR30_OPERAND_I20: return BFD_RELOC_FR30_20;
+ default : /* Avoid -Wall warning. */
+ break;
+ }
+
+ return BFD_RELOC_NONE;
+}
+
+/* Write a value out to the object file, using the appropriate endianness. */
+
+void
+md_number_to_chars (char * buf, valueT val, int n)
+{
+ number_to_chars_bigendian (buf, val, n);
+}
+
+char *
+md_atof (int type, char * litP, int * sizeP)
+{
+ return ieee_md_atof (type, litP, sizeP, TRUE);
+}
+
+/* Worker function for fr30_is_colon_insn(). */
+static char
+restore_colon (int advance_i_l_p_by)
+{
+ char c;
+
+ /* Restore the colon, and advance input_line_pointer to
+ the end of the new symbol. */
+ * input_line_pointer = ':';
+ input_line_pointer += advance_i_l_p_by;
+ c = * input_line_pointer;
+ * input_line_pointer = 0;
+
+ return c;
+}
+
+/* Determines if the symbol starting at START and ending in
+ a colon that was at the location pointed to by INPUT_LINE_POINTER
+ (but which has now been replaced bu a NUL) is in fact an
+ LDI:8, LDI:20, LDI:32, CALL:D. JMP:D, RET:D or Bcc:D instruction.
+ If it is, then it restores the colon, advances INPUT_LINE_POINTER
+ to the real end of the instruction/symbol, and returns the character
+ that really terminated the symbol. Otherwise it returns 0. */
+char
+fr30_is_colon_insn (char * start)
+{
+ char * i_l_p = input_line_pointer;
+
+ /* Check to see if the symbol parsed so far is 'ldi'. */
+ if ( (start[0] != 'l' && start[0] != 'L')
+ || (start[1] != 'd' && start[1] != 'D')
+ || (start[2] != 'i' && start[2] != 'I')
+ || start[3] != 0)
+ {
+ /* Nope - check to see a 'd' follows the colon. */
+ if ( (i_l_p[1] == 'd' || i_l_p[1] == 'D')
+ && (i_l_p[2] == ' ' || i_l_p[2] == '\t' || i_l_p[2] == '\n'))
+ {
+ /* Yup - it might be delay slot instruction. */
+ int i;
+ static char * delay_insns [] =
+ {
+ "call", "jmp", "ret", "bra", "bno",
+ "beq", "bne", "bc", "bnc", "bn",
+ "bp", "bv", "bnv", "blt", "bge",
+ "ble", "bgt", "bls", "bhi"
+ };
+
+ for (i = sizeof (delay_insns) / sizeof (delay_insns[0]); i--;)
+ {
+ char * insn = delay_insns[i];
+ int len = strlen (insn);
+
+ if (start [len] != 0)
+ continue;
+
+ while (len --)
+ if (TOLOWER (start [len]) != insn [len])
+ break;
+
+ if (len == -1)
+ return restore_colon (1);
+ }
+ }
+
+ /* Nope - it is a normal label. */
+ return 0;
+ }
+
+ /* Check to see if the text following the colon is '8'. */
+ if (i_l_p[1] == '8' && (i_l_p[2] == ' ' || i_l_p[2] == '\t'))
+ return restore_colon (2);
+
+ /* Check to see if the text following the colon is '20'. */
+ else if (i_l_p[1] == '2' && i_l_p[2] =='0' && (i_l_p[3] == ' ' || i_l_p[3] == '\t'))
+ return restore_colon (3);
+
+ /* Check to see if the text following the colon is '32'. */
+ else if (i_l_p[1] == '3' && i_l_p[2] =='2' && (i_l_p[3] == ' ' || i_l_p[3] == '\t'))
+ return restore_colon (3);
+
+ return 0;
+}
+
+bfd_boolean
+fr30_fix_adjustable (fixS * fixP)
+{
+ /* We need the symbol name for the VTABLE entries. */
+ if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
+ || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+ return 0;
+
+ return 1;
+}