3573 lines
104 KiB
C
3573 lines
104 KiB
C
/* tc-sh64.c -- Assemble code for the Hitachi Super-H SHcompact and SHmedia.
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Copyright 2000, 2001, 2002 Free Software Foundation.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This file defines SHmedia ISA-specific functions and includes tc-sh.c.
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The SHcompact ISA is in all useful aspects the "old" sh4 as implemented
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in tc-sh.c. Not making this file part of tc-sh.c makes it easier to
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keep a leaner sh[1-4]-only implementation. */
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#define HAVE_SH64
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#include <stdio.h>
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#include "as.h"
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#include "safe-ctype.h"
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#include "opcodes/sh64-opc.h"
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#ifndef OBJ_ELF
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#error This file assumes object output is in the ELF format
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#endif
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/* Suffix used when we make "datalabel" symbol copies. It must not
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collide with anything that can normally appear in a symbol, "faked
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symbol" or local symbol. */
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#define DATALABEL_SUFFIX " DL"
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/* See shmedia_md_apply_fix3 and shmedia_md_pcrel_from_section for usage. */
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#define SHMEDIA_MD_PCREL_FROM_FIX(FIXP) \
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((FIXP)->fx_size + (FIXP)->fx_where + (FIXP)->fx_frag->fr_address - 4)
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/* We use this internally to see which one is PT and which is a PTA/PTB
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that should be error-checked. We give it a better name here (but not
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one that looks official). Adding it to reloc.c would make it look too
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much of a real reloc; it is just used temporarily as a fixup-type. */
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#define SHMEDIA_BFD_RELOC_PT BFD_RELOC_12_PCREL
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typedef struct
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{
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shmedia_arg_type type;
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/* These could go into a union, but that would uglify the code. */
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int reg;
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expressionS immediate;
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/* If IMMEDIATE was a shift-expression, like "(S >> N) & 65535", where
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N = 0, 16, 32, 48, used to extract a certain 16-bit-field to make up
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a MOVI or SHORI relocation for a symbol, then we put the
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corresponding reloc-type here and modify the "immediate" expression
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to S. Otherwise, this is just BFD_RELOC_NONE. */
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bfd_reloc_code_real_type reloctype;
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} shmedia_operand_info;
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/* Frag containing last base instruction. This is put in the TC field in
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a frag, so we can emit fixups for fr_opcode without needing to make
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sure that the opcode is in the same frag as any variant operand. */
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fragS *sh64_last_insn_frag = NULL;
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typedef struct
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{
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shmedia_operand_info operands[3];
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unsigned long ops_val;
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} shmedia_operands_info;
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enum sh64_abi_values
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{ sh64_abi_unspecified, sh64_abi_32, sh64_abi_64 };
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/* What ISA are we assembling code for? */
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enum sh64_isa_values sh64_isa_mode = sh64_isa_unspecified;
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/* What ABI was specified, if any (implicitly or explicitly)? */
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static enum sh64_abi_values sh64_abi = sh64_abi_unspecified;
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/* A note that says if we're in a sequence of insns without label
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settings, segment or ISA mode changes or emitted data. */
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static bfd_boolean seen_insn = FALSE;
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/* This is set to TRUE in shmedia_md_end, so that we don't emit any
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.cranges entries when the assembler calls output functions while
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grinding along after all input is seen. */
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static bfd_boolean sh64_end_of_assembly = FALSE;
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/* Controlled by the option -no-mix, this invalidates mixing SHcompact and
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SHmedia code in the same section, and also invalidates mixing data and
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SHmedia code in the same section. No .cranges will therefore be
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emitted, unless -shcompact-const-crange is specified and there is a
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constant pool in SHcompact code. */
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static bfd_boolean sh64_mix = TRUE;
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static bfd_boolean sh64_shcompact_const_crange = FALSE;
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/* Controlled by the option -no-expand, this says whether or not we expand
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MOVI and PT/PTA/PTB. When we do not expand these insns to fit an
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operand, we will emit errors for operands out of range and generate the
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basic instruction and reloc for an external symbol. */
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static bfd_boolean sh64_expand = TRUE;
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/* Controlled by the option -expand-pt32, this says whether we expand
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PT/PTA/PTB of an external symbol to (only) 32 or (the full) 64 bits
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when -abi=64 is in effect. */
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static bfd_boolean sh64_pt32 = FALSE;
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/* When emitting a .cranges descriptor, we want to avoid getting recursive
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calls through emit_expr. */
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static bfd_boolean emitting_crange = FALSE;
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/* SHmedia mnemonics. */
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static struct hash_control *shmedia_opcode_hash_control = NULL;
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static const unsigned char shmedia_big_nop_pattern[4] =
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{
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(SHMEDIA_NOP_OPC >> 24) & 255, (SHMEDIA_NOP_OPC >> 16) & 255,
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(SHMEDIA_NOP_OPC >> 8) & 255, SHMEDIA_NOP_OPC & 255
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};
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static const unsigned char shmedia_little_nop_pattern[4] =
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{
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SHMEDIA_NOP_OPC & 255, (SHMEDIA_NOP_OPC >> 8) & 255,
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(SHMEDIA_NOP_OPC >> 16) & 255, (SHMEDIA_NOP_OPC >> 24) & 255
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};
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static void shmedia_md_begin
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PARAMS ((void));
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static int shmedia_parse_reg
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PARAMS ((char *, int *, int *, shmedia_arg_type));
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static void shmedia_md_assemble
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PARAMS ((char *));
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static void shmedia_md_apply_fix3
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PARAMS ((fixS *, valueT *));
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static int shmedia_md_estimate_size_before_relax
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PARAMS ((fragS *, segT));
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static int shmedia_init_reloc
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PARAMS ((arelent *, fixS *));
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static char *shmedia_get_operands
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PARAMS ((shmedia_opcode_info *, char *, shmedia_operands_info *));
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static void s_sh64_mode
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PARAMS ((int));
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static void s_sh64_abi
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PARAMS ((int));
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static void shmedia_md_convert_frag
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PARAMS ((bfd *, segT, fragS *, bfd_boolean));
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static void shmedia_check_limits
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PARAMS ((offsetT *, bfd_reloc_code_real_type, fixS *));
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static void sh64_set_contents_type
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PARAMS ((enum sh64_elf_cr_type));
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static void shmedia_get_operand
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PARAMS ((char **, shmedia_operand_info *, shmedia_arg_type));
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static unsigned long shmedia_immediate_op
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PARAMS ((char *, shmedia_operand_info *, int, bfd_reloc_code_real_type));
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static char *shmedia_parse_exp
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PARAMS ((char *, shmedia_operand_info *));
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static void shmedia_frob_file_before_adjust
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PARAMS ((void));
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static void sh64_emit_crange
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PARAMS ((symbolS *, symbolS *, enum sh64_elf_cr_type));
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static void sh64_flush_last_crange
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PARAMS ((bfd *, asection *, PTR));
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static void sh64_flag_output
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PARAMS ((void));
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static void sh64_update_contents_mark
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PARAMS ((bfd_boolean));
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static void sh64_vtable_entry
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PARAMS ((int));
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static void sh64_vtable_inherit
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PARAMS ((int));
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static char * strip_datalabels
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PARAMS ((void));
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static int shmedia_build_Mytes
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PARAMS ((shmedia_opcode_info *, shmedia_operands_info *));
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static shmedia_opcode_info * shmedia_find_cooked_opcode
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PARAMS ((char **));
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static unsigned long shmedia_mask_number
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PARAMS ((unsigned long, bfd_reloc_code_real_type));
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#include "tc-sh.c"
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void
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shmedia_md_end ()
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{
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symbolS *symp;
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/* First, update the last range to include whatever data was last
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emitted. */
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sh64_update_contents_mark (TRUE);
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/* Make sure frags generated after this point are not marked with the
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wrong ISA; make them easily spottable. We still want to distinguish
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it from sh64_isa_unspecified when we compile for SHcompact or
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SHmedia. */
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if (sh64_isa_mode != sh64_isa_unspecified)
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sh64_isa_mode = sh64_isa_sh5_guard;
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sh64_end_of_assembly = TRUE;
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bfd_map_over_sections (stdoutput, sh64_flush_last_crange, NULL);
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/* Iterate over segments and emit the last .cranges descriptor. */
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for (symp = symbol_rootP; symp != NULL; symp = symp->sy_next)
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{
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symbolS *mainsym = *symbol_get_tc (symp);
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/* Is this a datalabel symbol; does it have a pointer to the main
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symbol? */
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if (mainsym != NULL)
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{
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/* If the datalabel symbol is undefined, check if the main
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symbol has changed in that respect. */
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if (S_GET_SEGMENT (symp) == undefined_section)
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{
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segT symseg;
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symseg = S_GET_SEGMENT (mainsym);
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/* If the symbol is now defined to something that is not
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global and without STO_SH5_ISA32, we just equate the
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datalabel symbol to the main symbol, and the lack of
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STO_SH5_ISA32 will handle the datalabelness. */
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if (symseg != undefined_section)
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{
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if (S_GET_OTHER (mainsym) != STO_SH5_ISA32)
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{
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symp->sy_value.X_op = O_symbol;
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symp->sy_value.X_add_symbol = mainsym;
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symp->sy_value.X_op_symbol = NULL;
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symp->sy_value.X_add_number = 0;
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S_SET_SEGMENT (symp, S_GET_SEGMENT (mainsym));
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symbol_set_frag (symp, &zero_address_frag);
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copy_symbol_attributes (symp, mainsym);
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}
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else
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{
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/* An undefined symbol has since we saw it at
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"datalabel", been defined to a BranchTarget
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symbol. What we need to do here is very similar
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to when we find the "datalabel" for a defined
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symbol. FIXME: Break out to common function. */
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symbol_set_value_expression (symp,
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symbol_get_value_expression
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(mainsym));
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S_SET_SEGMENT (symp, symseg);
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symbol_set_frag (symp, symbol_get_frag (mainsym));
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copy_symbol_attributes (symp, mainsym);
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/* Unset the BranchTarget mark that can be set at
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attribute-copying. */
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S_SET_OTHER (symp,
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S_GET_OTHER (symp) & ~STO_SH5_ISA32);
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/* The GLOBAL and WEAK attributes are not copied
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over by copy_symbol_attributes. Do it here. */
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if (S_IS_WEAK (mainsym))
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S_SET_WEAK (symp);
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else if (S_IS_EXTERNAL (mainsym))
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S_SET_EXTERNAL (symp);
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}
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}
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else
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{
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/* A symbol that was defined at the time we saw
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"datalabel" can since have been attributed with being
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weak or global. */
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if (S_IS_WEAK (mainsym))
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S_SET_WEAK (symp);
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else if (S_IS_EXTERNAL (mainsym))
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S_SET_EXTERNAL (symp);
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}
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}
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}
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}
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for (symp = symbol_rootP; symp != NULL; symp = symp->sy_next)
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if (S_GET_OTHER (symp) & STO_SH5_ISA32)
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symp->sy_value.X_add_number++;
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}
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/* When resolving symbols, the main assembler has done us a misfavour. It
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has removed the equation to the main symbol for a datalabel reference
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that should be equal to the main symbol, e.g. when it's a global or
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weak symbol and is a non-BranchTarget symbol anyway. We change that
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back, so that relocs are against the main symbol, not the local "section
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+ offset" value. */
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static void
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shmedia_frob_file_before_adjust ()
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{
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symbolS *symp;
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for (symp = symbol_rootP; symp != NULL; symp = symp->sy_next)
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{
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symbolS *mainsym = *symbol_get_tc (symp);
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if (mainsym != NULL
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&& S_GET_OTHER (mainsym) != STO_SH5_ISA32
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&& (S_IS_EXTERN (mainsym) || S_IS_WEAK (mainsym)))
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{
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symp->sy_value.X_op = O_symbol;
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symp->sy_value.X_add_symbol = mainsym;
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symp->sy_value.X_op_symbol = NULL;
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symp->sy_value.X_add_number = 0;
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/* For the "equation trick" to work, we have to set the section
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to undefined. */
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S_SET_SEGMENT (symp, undefined_section);
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symbol_set_frag (symp, &zero_address_frag);
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copy_symbol_attributes (symp, mainsym);
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/* Don't forget to remove the STO_SH5_ISA32 attribute after
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copying the other attributes. */
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S_SET_OTHER (symp, S_GET_OTHER (symp) & ~STO_SH5_ISA32);
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}
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}
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}
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/* We need to mark the current location after the alignment. This is
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copied code the caller, do_align. We mark the frag location before and
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after as we need and arrange to skip the same code in do_align.
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An alternative to code duplication is to call the do_align recursively,
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arranging to fall through into do_align if we're already here. That
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would require do_align as an incoming function parameter, since it's
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static in read.c. That solution was discarded a too kludgy. */
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void
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sh64_do_align (n, fill, len, max)
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int n;
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const char *fill;
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int len;
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int max;
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{
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/* Update region, or put a data region in front. */
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sh64_update_contents_mark (TRUE);
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/* Only make a frag if we HAVE to... */
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if (n != 0 && !need_pass_2)
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{
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if (fill == NULL)
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{
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if (subseg_text_p (now_seg))
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frag_align_code (n, max);
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else
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frag_align (n, 0, max);
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}
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else if (len <= 1)
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frag_align (n, *fill, max);
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else
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frag_align_pattern (n, fill, len, max);
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}
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/* Update mark for current region with current type. */
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sh64_update_contents_mark (FALSE);
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}
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/* The MAX_MEM_FOR_RS_ALIGN_CODE worker. We have to find out the ISA of
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the current segment at this position. We can't look just at
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sh64_isa_shmedia, and we can't look at frag_now. This is brittle:
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callers are currently frag_align_code from subsegs_finish in write.c
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(end of assembly) and frag_align_code from do_align in read.c (during
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assembly). */
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int
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sh64_max_mem_for_rs_align_code ()
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{
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segment_info_type *seginfo;
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fragS *mode_start_frag;
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seginfo = seg_info (now_seg);
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/* We don't use the contents type we find at the tc_segment_info_data,
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since that does not give us absolute information about the ISA; the
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contents type can presumably be CRT_DATA and we'd be none the wiser.
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Instead we use the information stored at the frag of the symbol at
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the start of this range. If any information is missing or NULL,
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assume SHcompact. */
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return
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/* If the current ISA mode is SHmedia, that's the mode that we're
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going to assign to the new frag, so request enough memory for
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it, even if we switch modes afterwards, otherwise we may
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allocate too little memory and end up overflowing our buffer. */
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(sh64_isa_mode == sh64_isa_shmedia
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|| (sh64_isa_mode != sh64_isa_unspecified
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&& seginfo != NULL
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&& seginfo->tc_segment_info_data.mode_start_symbol != NULL
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&& ((mode_start_frag
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= (symbol_get_frag
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(seginfo->tc_segment_info_data.mode_start_symbol)))
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!= NULL)
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&& mode_start_frag->tc_frag_data.isa == sh64_isa_shmedia))
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? (3 + 4) : (2 + 1);
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}
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/* Put in SHmedia NOP:s if the alignment was created when in SHmedia mode. */
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void
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sh64_handle_align (frag)
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fragS * frag;
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{
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int bytes = frag->fr_next->fr_address - frag->fr_address - frag->fr_fix;
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char * p = frag->fr_literal + frag->fr_fix;
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if (frag->tc_frag_data.isa == sh64_isa_shmedia
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&& frag->fr_type == rs_align_code)
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{
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while (bytes & 3)
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{
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*p++ = 0;
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bytes--;
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frag->fr_fix += 1;
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}
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if (target_big_endian)
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{
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memcpy (p, shmedia_big_nop_pattern,
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sizeof shmedia_big_nop_pattern);
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frag->fr_var = sizeof shmedia_big_nop_pattern;
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}
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else
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{
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memcpy (p, shmedia_little_nop_pattern,
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sizeof shmedia_little_nop_pattern);
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frag->fr_var = sizeof shmedia_little_nop_pattern;
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}
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}
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else
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/* Punt to SHcompact function. */
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sh_handle_align (frag);
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}
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/* Set SEC_SH64_ISA32 for SHmedia sections. */
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void
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shmedia_frob_section_type (sec)
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asection *sec;
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{
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segment_info_type *seginfo;
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seginfo = seg_info (sec);
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/* This and elf32-sh64.c:sh64_elf_fake_sections are the only places
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where we use anything else than ELF header flags to communicate the
|
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section as containing SHmedia or other contents. BFD SEC_* section
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flags are running out and should not be overloaded with
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target-specific semantics. This target is ELF only (semantics not
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defined for other formats), so we use the target-specific pointer
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field of the ELF section data. */
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if (seginfo)
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{
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struct sh64_section_data *sec_elf_data;
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flagword sec_type = 0;
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if (seginfo->tc_segment_info_data.emitted_ranges != 0)
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sec_type = SHF_SH5_ISA32_MIXED;
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else if (seginfo->tc_segment_info_data.contents_type == CRT_SH5_ISA32)
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sec_type = SHF_SH5_ISA32;
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sec_elf_data = sh64_elf_section_data (sec);
|
|
if (sec_elf_data == NULL)
|
|
{
|
|
sec_elf_data = xcalloc (1, sizeof (*sec_elf_data));
|
|
sh64_elf_section_data (sec) = sec_elf_data;
|
|
}
|
|
|
|
sec_elf_data->contents_flags = sec_type;
|
|
}
|
|
}
|
|
|
|
/* This function is called by write_object_file right before the symbol
|
|
table is written. We subtract 1 from all symbols marked STO_SH5_ISA32,
|
|
as their values are temporarily incremented in shmedia_md_end, before
|
|
symbols values are used by relocs and fixups.
|
|
|
|
To increment all symbols and then decrement here is admittedly a
|
|
hackish solution. The alternative is to add infrastructure and hooks
|
|
to symbol evaluation that evaluates symbols differently internally to
|
|
the value output into the object file, but at the moment that just
|
|
seems too much for little benefit. */
|
|
|
|
void
|
|
sh64_adjust_symtab ()
|
|
{
|
|
symbolS *symp;
|
|
|
|
for (symp = symbol_rootP; symp; symp = symbol_next (symp))
|
|
{
|
|
symbolS *main_symbol = *symbol_get_tc (symp);
|
|
|
|
if (main_symbol)
|
|
{
|
|
char *sym_name = (char *) S_GET_NAME (symp);
|
|
|
|
/* All datalabels not used in relocs should be gone by now.
|
|
|
|
We change those remaining to have the name of the main
|
|
symbol, and we set the ELF type of the symbol of the reloc to
|
|
STT_DATALABEL. */
|
|
sym_name[strlen (sym_name) - strlen (DATALABEL_SUFFIX)] = 0;
|
|
elf_symbol (symbol_get_bfdsym (symp))->internal_elf_sym.st_info
|
|
= STT_DATALABEL;
|
|
|
|
/* Also set this symbol to "undefined", so we'll have only one
|
|
definition. */
|
|
S_SET_SEGMENT (symp, undefined_section);
|
|
}
|
|
else if (S_GET_OTHER (symp) & STO_SH5_ISA32)
|
|
{
|
|
/* It's important to change the BFD symbol value, since it is now
|
|
set to the GAS symbolS value. */
|
|
symp->bsym->value--;
|
|
|
|
/* Note that we do *not* adjust symp->sy_value.X_add_number. If
|
|
you do this, the test case in sh/sh64/immexpr2.s will fail.
|
|
This is because *after* symbols have been output but before
|
|
relocs are output, fixups are inspected one more time, and
|
|
some leftover expressions are resolved. To resolve to the
|
|
same values, those expressions must have the same GAS symbol
|
|
values before as after symbols have been output. We could
|
|
"symp->sy_value.X_add_number++" on the STO_SH5_ISA32 symbols
|
|
through tc_frob_file after symbols have been output, but that
|
|
would be too gross. */
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Fill-in an allocated arelent. */
|
|
|
|
static int
|
|
shmedia_init_reloc (rel, fixP)
|
|
arelent *rel;
|
|
fixS *fixP;
|
|
{
|
|
/* Adjust parts of *relp according to *fixp, and tell that it has been
|
|
done, so default initializations will not happen. */
|
|
switch (fixP->fx_r_type)
|
|
{
|
|
case BFD_RELOC_64:
|
|
case BFD_RELOC_64_PCREL:
|
|
case BFD_RELOC_SH_IMM_LOW16:
|
|
case BFD_RELOC_SH_IMM_MEDLOW16:
|
|
case BFD_RELOC_SH_IMM_MEDHI16:
|
|
case BFD_RELOC_SH_IMM_HI16:
|
|
case BFD_RELOC_SH_IMM_LOW16_PCREL:
|
|
case BFD_RELOC_SH_IMM_MEDLOW16_PCREL:
|
|
case BFD_RELOC_SH_IMM_MEDHI16_PCREL:
|
|
case BFD_RELOC_SH_IMM_HI16_PCREL:
|
|
case BFD_RELOC_SH_IMMU5:
|
|
case BFD_RELOC_SH_IMMU6:
|
|
case BFD_RELOC_SH_IMMS6:
|
|
case BFD_RELOC_SH_IMMS10:
|
|
case BFD_RELOC_SH_IMMS10BY2:
|
|
case BFD_RELOC_SH_IMMS10BY4:
|
|
case BFD_RELOC_SH_IMMS10BY8:
|
|
case BFD_RELOC_SH_IMMS16:
|
|
case BFD_RELOC_SH_IMMU16:
|
|
case BFD_RELOC_SH_PT_16:
|
|
case BFD_RELOC_SH_GOT_LOW16:
|
|
case BFD_RELOC_SH_GOT_MEDLOW16:
|
|
case BFD_RELOC_SH_GOT_MEDHI16:
|
|
case BFD_RELOC_SH_GOT_HI16:
|
|
case BFD_RELOC_SH_GOT10BY4:
|
|
case BFD_RELOC_SH_GOT10BY8:
|
|
case BFD_RELOC_SH_GOTPLT_LOW16:
|
|
case BFD_RELOC_SH_GOTPLT_MEDLOW16:
|
|
case BFD_RELOC_SH_GOTPLT_MEDHI16:
|
|
case BFD_RELOC_SH_GOTPLT_HI16:
|
|
case BFD_RELOC_SH_GOTPLT10BY4:
|
|
case BFD_RELOC_SH_GOTPLT10BY8:
|
|
case BFD_RELOC_SH_GOTOFF_LOW16:
|
|
case BFD_RELOC_SH_GOTOFF_MEDLOW16:
|
|
case BFD_RELOC_SH_GOTOFF_MEDHI16:
|
|
case BFD_RELOC_SH_GOTOFF_HI16:
|
|
case BFD_RELOC_SH_GOTPC_LOW16:
|
|
case BFD_RELOC_SH_GOTPC_MEDLOW16:
|
|
case BFD_RELOC_SH_GOTPC_MEDHI16:
|
|
case BFD_RELOC_SH_GOTPC_HI16:
|
|
case BFD_RELOC_SH_PLT_LOW16:
|
|
case BFD_RELOC_SH_PLT_MEDLOW16:
|
|
case BFD_RELOC_SH_PLT_MEDHI16:
|
|
case BFD_RELOC_SH_PLT_HI16:
|
|
rel->addend = fixP->fx_addnumber + fixP->fx_offset;
|
|
return 1;
|
|
|
|
case BFD_RELOC_SH_IMMS6BY32:
|
|
/* This must be resolved in assembly; we do not support it as a
|
|
reloc in an object file. */
|
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
|
_("This operand must be constant at assembly time"));
|
|
break;
|
|
|
|
/* There are valid cases where we get here for other than SHmedia
|
|
relocs, so don't make a BAD_CASE out of this. */
|
|
default:
|
|
;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Hook called from md_apply_fix3 in tc-sh.c. */
|
|
|
|
static void
|
|
shmedia_md_apply_fix3 (fixP, valp)
|
|
fixS *fixP;
|
|
valueT *valp;
|
|
{
|
|
offsetT val = *valp;
|
|
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
|
|
unsigned long insn
|
|
= target_big_endian ? bfd_getb32 (buf) : bfd_getl32 (buf);
|
|
bfd_reloc_code_real_type orig_fx_r_type = fixP->fx_r_type;
|
|
|
|
/* Change a 64-bit pc-relative reloc into the correct type, just like
|
|
tc-sh.c:md_apply_fix. */
|
|
if (fixP->fx_pcrel)
|
|
{
|
|
switch (orig_fx_r_type)
|
|
{
|
|
case BFD_RELOC_64:
|
|
case BFD_RELOC_SH_IMM_LOW16:
|
|
case BFD_RELOC_SH_IMM_MEDLOW16:
|
|
case BFD_RELOC_SH_IMM_MEDHI16:
|
|
case BFD_RELOC_SH_IMM_HI16:
|
|
/* Because write.c calls MD_PCREL_FROM_SECTION twice, we need to
|
|
undo one of the adjustments, if the relocation is not
|
|
actually for a symbol within the same segment (which we
|
|
cannot check, because we're not called from md_apply_fix3, so
|
|
we have to keep the reloc). FIXME: This is a bug in
|
|
write.c:fixup_segment affecting most targets that change
|
|
ordinary relocs to pcrel relocs in md_apply_fix. */
|
|
fixP->fx_offset
|
|
= *valp + SHMEDIA_MD_PCREL_FROM_FIX (fixP);
|
|
break;
|
|
|
|
case BFD_RELOC_SH_PLT_LOW16:
|
|
case BFD_RELOC_SH_PLT_MEDLOW16:
|
|
case BFD_RELOC_SH_PLT_MEDHI16:
|
|
case BFD_RELOC_SH_PLT_HI16:
|
|
case BFD_RELOC_SH_GOTPC_LOW16:
|
|
case BFD_RELOC_SH_GOTPC_MEDLOW16:
|
|
case BFD_RELOC_SH_GOTPC_MEDHI16:
|
|
case BFD_RELOC_SH_GOTPC_HI16:
|
|
*valp = 0;
|
|
return;
|
|
|
|
default:
|
|
;
|
|
}
|
|
|
|
/* We might need to change some relocs into the corresponding
|
|
PC-relative one. */
|
|
switch (orig_fx_r_type)
|
|
{
|
|
case BFD_RELOC_64:
|
|
fixP->fx_r_type = BFD_RELOC_64_PCREL;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMM_LOW16:
|
|
fixP->fx_r_type = BFD_RELOC_SH_IMM_LOW16_PCREL;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMM_MEDLOW16:
|
|
fixP->fx_r_type = BFD_RELOC_SH_IMM_MEDLOW16_PCREL;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMM_MEDHI16:
|
|
fixP->fx_r_type = BFD_RELOC_SH_IMM_MEDHI16_PCREL;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMM_HI16:
|
|
fixP->fx_r_type = BFD_RELOC_SH_IMM_HI16_PCREL;
|
|
break;
|
|
|
|
case SHMEDIA_BFD_RELOC_PT:
|
|
/* This is how we see a difference between PT and PTA when not
|
|
expanding (in which case we handle it in
|
|
shmedia_md_convert_frag). Note that we don't see a
|
|
difference after the reloc is emitted. */
|
|
fixP->fx_r_type = BFD_RELOC_SH_PT_16;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_PT_16:
|
|
/* This tells us there was a PTA or PTB insn explicitly
|
|
expressed as such (not as PT). We "or" in a 1 into the
|
|
lowest bit in the (unused) destination field to tell the
|
|
linker that it should check the right ISA type of the
|
|
destination and not just change a PTA to PTB (if necessary). */
|
|
md_number_to_chars (buf, insn | (1 << 10), 4);
|
|
break;
|
|
|
|
case BFD_RELOC_64_PCREL:
|
|
case BFD_RELOC_SH_IMM_LOW16_PCREL:
|
|
case BFD_RELOC_SH_IMM_MEDLOW16_PCREL:
|
|
case BFD_RELOC_SH_IMM_MEDHI16_PCREL:
|
|
case BFD_RELOC_SH_IMM_HI16_PCREL:
|
|
/* Already handled. */
|
|
break;
|
|
|
|
default:
|
|
/* Everything else that changes into a pc-relative relocation is
|
|
an error. */
|
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
|
_("Invalid operand expression"));
|
|
break;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/* If an expression looked like it was PC-relative, but was completely
|
|
resolvable, we end up here with the result only in *VALP, and no
|
|
relocation will be emitted. */
|
|
if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
|
|
{
|
|
/* Emit error for an out-of-range value. */
|
|
shmedia_check_limits (valp, fixP->fx_r_type, fixP);
|
|
|
|
switch (fixP->fx_r_type)
|
|
{
|
|
case BFD_RELOC_SH_IMM_LOW16:
|
|
md_number_to_chars (buf, insn | ((val & 65535) << 10), 4);
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMM_MEDLOW16:
|
|
md_number_to_chars (buf,
|
|
insn
|
|
| ((valueT) (val & ((valueT) 65535 << 16))
|
|
>> (16 - 10)), 4);
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMM_MEDHI16:
|
|
md_number_to_chars (buf,
|
|
insn
|
|
| ((valueT) (val & ((valueT) 65535 << 32))
|
|
>> (32 - 10)), 4);
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMM_HI16:
|
|
md_number_to_chars (buf,
|
|
insn
|
|
| ((valueT) (val & ((valueT) 65535 << 48))
|
|
>> (48 - 10)), 4);
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS16:
|
|
case BFD_RELOC_SH_IMMU16:
|
|
md_number_to_chars (buf, insn | ((val & 65535) << 10), 4);
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10:
|
|
md_number_to_chars (buf, insn | ((val & 0x3ff) << 10), 4);
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10BY2:
|
|
md_number_to_chars (buf,
|
|
insn | ((val & (0x3ff << 1)) << (10 - 1)), 4);
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10BY4:
|
|
md_number_to_chars (buf,
|
|
insn | ((val & (0x3ff << 2)) << (10 - 2)), 4);
|
|
break;
|
|
|
|
case BFD_RELOC_SH_SHMEDIA_CODE:
|
|
/* We just ignore and remove this one for the moment. FIXME:
|
|
Use it when implementing relaxing. */
|
|
break;
|
|
|
|
case BFD_RELOC_64:
|
|
md_number_to_chars (buf, val, 8);
|
|
break;
|
|
|
|
case SHMEDIA_BFD_RELOC_PT:
|
|
/* Change a PT to PTB if the operand turned out to be SHcompact.
|
|
The basic opcode specified with PT is equivalent to PTA. */
|
|
if ((val & 1) == 0)
|
|
insn |= SHMEDIA_PTB_BIT;
|
|
/* Fall through. */
|
|
|
|
case BFD_RELOC_SH_PT_16:
|
|
if (! sh64_expand || sh_relax)
|
|
{
|
|
/* Check if the operand of a PTA or PTB was for the "wrong"
|
|
ISA. A PT had an incoming fixup of SHMEDIA_BFD_RELOC_PT,
|
|
which we have changed to the right type above. */
|
|
if (orig_fx_r_type != SHMEDIA_BFD_RELOC_PT)
|
|
{
|
|
if ((insn & SHMEDIA_PTB_BIT) != 0 && (val & 1) != 0)
|
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
|
_("PTB operand is a SHmedia symbol"));
|
|
else if ((insn & SHMEDIA_PTB_BIT) == 0 && (val & 1) == 0)
|
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
|
_("PTA operand is a SHcompact symbol"));
|
|
}
|
|
|
|
md_number_to_chars (buf,
|
|
insn | ((val & (0xffff << 2))
|
|
<< (10 - 2)),
|
|
4);
|
|
break;
|
|
}
|
|
/* Fall through. */
|
|
|
|
default:
|
|
/* This isn't a BAD_CASE, because presumably we can get here
|
|
from unexpected operands. Since we don't handle them, make
|
|
them syntax errors. */
|
|
as_bad_where (fixP->fx_file, fixP->fx_line,
|
|
_("invalid expression in operand"));
|
|
}
|
|
fixP->fx_done = 1;
|
|
}
|
|
}
|
|
|
|
/* Hook called from md_convert_frag in tc-sh.c. */
|
|
|
|
static void
|
|
shmedia_md_convert_frag (output_bfd, seg, fragP, final)
|
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
|
segT seg ATTRIBUTE_UNUSED;
|
|
fragS *fragP;
|
|
bfd_boolean final;
|
|
{
|
|
/* Pointer to first byte in variable-sized part of the frag. */
|
|
char *var_partp;
|
|
|
|
/* Pointer to first opcode byte in frag. */
|
|
char *opcodep;
|
|
|
|
/* Pointer to frag of opcode. */
|
|
fragS *opc_fragP = fragP->tc_frag_data.opc_frag;
|
|
|
|
/* Size in bytes of variable-sized part of frag. */
|
|
int var_part_size = 0;
|
|
|
|
/* This is part of *fragP. It contains all information about addresses
|
|
and offsets to varying parts. */
|
|
symbolS *symbolP = fragP->fr_symbol;
|
|
|
|
bfd_boolean reloc_needed
|
|
= (! final
|
|
|| sh_relax
|
|
|| symbolP == NULL
|
|
|| ! S_IS_DEFINED (symbolP)
|
|
|| S_IS_EXTERN (symbolP)
|
|
|| S_IS_WEAK (symbolP)
|
|
|| (S_GET_SEGMENT (fragP->fr_symbol) != absolute_section
|
|
&& S_GET_SEGMENT (fragP->fr_symbol) != seg));
|
|
|
|
bfd_reloc_code_real_type reloctype = BFD_RELOC_NONE;
|
|
|
|
unsigned long var_part_offset;
|
|
|
|
/* Where, in file space, does addr point? */
|
|
bfd_vma target_address;
|
|
bfd_vma opcode_address;
|
|
|
|
/* What was the insn? */
|
|
unsigned long insn;
|
|
know (fragP->fr_type == rs_machine_dependent);
|
|
|
|
var_part_offset = fragP->fr_fix;
|
|
var_partp = fragP->fr_literal + var_part_offset;
|
|
opcodep = fragP->fr_opcode;
|
|
|
|
insn = target_big_endian ? bfd_getb32 (opcodep) : bfd_getl32 (opcodep);
|
|
|
|
target_address
|
|
= ((symbolP && final && ! sh_relax ? S_GET_VALUE (symbolP) : 0)
|
|
+ fragP->fr_offset);
|
|
|
|
/* The opcode that would be extended is the last four "fixed" bytes. */
|
|
opcode_address = fragP->fr_address + fragP->fr_fix - 4;
|
|
|
|
switch (fragP->fr_subtype)
|
|
{
|
|
case C (SH64PCREL16PT_64, SH64PCREL16):
|
|
case C (SH64PCREL16PT_32, SH64PCREL16):
|
|
/* We can get a PT to a relaxed SHcompact address if it is in the
|
|
same section; a mixed-ISA section. Change the opcode to PTB if
|
|
so. */
|
|
if ((target_address & 1) == 0)
|
|
insn |= SHMEDIA_PTB_BIT;
|
|
/* Fall through. */
|
|
|
|
case C (SH64PCREL16_32, SH64PCREL16):
|
|
case C (SH64PCREL16_64, SH64PCREL16):
|
|
/* Check that a PTA or PTB points to the right type of target. We
|
|
can get here for a SHcompact target if we are in a mixed-ISA
|
|
section. */
|
|
if (((target_address & 1) == 0) && ((insn & SHMEDIA_PTB_BIT) == 0))
|
|
as_bad_where (fragP->fr_file, fragP->fr_line,
|
|
_("PTA operand is a SHcompact symbol"));
|
|
if (((target_address & 1) != 0) && ((insn & SHMEDIA_PTB_BIT) != 0))
|
|
as_bad_where (fragP->fr_file, fragP->fr_line,
|
|
_("PTB operand is a SHmedia symbol"));
|
|
|
|
/* When relaxing, we do not output the address in the insn, but
|
|
instead a 1 into the low bit. This matches what the linker
|
|
expects to find for a BFD_RELOC_SH_PT_16 reloc, when it checks
|
|
correctness for PTA/PTB insn; used when the target address is
|
|
unknown (which is not the case here). */
|
|
md_number_to_chars (opcodep,
|
|
insn
|
|
| (((sh_relax
|
|
? 1 : ((target_address - opcode_address) / 4))
|
|
& ((1 << 16) - 1)) << 10),
|
|
4);
|
|
|
|
/* Note that we do not emit info that this was originally a PT since
|
|
we have resolved to which one of PTA or PTB it will be. */
|
|
if (sh_relax)
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset, 1, BFD_RELOC_SH_PT_16);
|
|
var_part_size = 0;
|
|
break;
|
|
|
|
case C (SH64PCREL16_32, SH64PCRELPLT):
|
|
case C (SH64PCREL16PT_32, SH64PCRELPLT):
|
|
reloctype = BFD_RELOC_32_PLT_PCREL;
|
|
reloc_needed = 1;
|
|
/* Fall through */
|
|
|
|
case C (SH64PCREL16_32, SH64PCREL32):
|
|
case C (SH64PCREL16_64, SH64PCREL32):
|
|
case C (SH64PCREL16PT_32, SH64PCREL32):
|
|
case C (SH64PCREL16PT_64, SH64PCREL32):
|
|
/* In the fixed bit, put in a MOVI. */
|
|
md_number_to_chars (opcodep,
|
|
SHMEDIA_MOVI_OPC
|
|
| (SHMEDIA_TEMP_REG << 4)
|
|
| ((((reloc_needed
|
|
? 0 : (target_address - (opcode_address + 8))
|
|
) >> 16) & 65535) << 10),
|
|
4);
|
|
|
|
/* Fill in a SHORI for the low part. */
|
|
md_number_to_chars (var_partp,
|
|
SHMEDIA_SHORI_OPC
|
|
| (SHMEDIA_TEMP_REG << 4)
|
|
| (((reloc_needed
|
|
? 0 : (target_address - (opcode_address + 8)))
|
|
& 65535) << 10),
|
|
4);
|
|
|
|
/* End with a "PTREL R25,TRd". */
|
|
md_number_to_chars (var_partp + 4,
|
|
SHMEDIA_PTREL_OPC | (insn & SHMEDIA_LIKELY_BIT)
|
|
| (SHMEDIA_TEMP_REG << 10)
|
|
| (insn & (7 << 4)),
|
|
4);
|
|
|
|
/* We need relocs only if the target symbol was undefined or if
|
|
we're relaxing. */
|
|
if (reloc_needed)
|
|
{
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset - 8, 1,
|
|
reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_MEDLOW16
|
|
: BFD_RELOC_SH_IMM_MEDLOW16_PCREL);
|
|
fix_new (fragP, var_partp - fragP->fr_literal, 4, fragP->fr_symbol,
|
|
fragP->fr_offset - 4, 1,
|
|
reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_LOW16
|
|
: BFD_RELOC_SH_IMM_LOW16_PCREL);
|
|
}
|
|
|
|
var_part_size = 8;
|
|
break;
|
|
|
|
case C (SH64PCREL16_64, SH64PCREL48):
|
|
case C (SH64PCREL16PT_64, SH64PCREL48):
|
|
/* In the fixed bit, put in a MOVI. */
|
|
md_number_to_chars (opcodep,
|
|
SHMEDIA_MOVI_OPC
|
|
| (SHMEDIA_TEMP_REG << 4)
|
|
| ((((reloc_needed
|
|
? 0 : (target_address - (opcode_address + 12))
|
|
) >> 32) & 65535) << 10),
|
|
4);
|
|
|
|
/* The first SHORI, for the medium part. */
|
|
md_number_to_chars (var_partp,
|
|
SHMEDIA_SHORI_OPC
|
|
| (SHMEDIA_TEMP_REG << 4)
|
|
| ((((reloc_needed
|
|
? 0 : (target_address - (opcode_address + 12))
|
|
) >> 16) & 65535) << 10),
|
|
4);
|
|
|
|
/* Fill in a SHORI for the low part. */
|
|
md_number_to_chars (var_partp + 4,
|
|
SHMEDIA_SHORI_OPC
|
|
| (SHMEDIA_TEMP_REG << 4)
|
|
| (((reloc_needed
|
|
? 0 : (target_address - (opcode_address + 12)))
|
|
& 65535) << 10),
|
|
4);
|
|
|
|
/* End with a "PTREL R25,TRd". */
|
|
md_number_to_chars (var_partp + 8,
|
|
SHMEDIA_PTREL_OPC | (insn & SHMEDIA_LIKELY_BIT)
|
|
| (SHMEDIA_TEMP_REG << 10)
|
|
| (insn & (7 << 4)),
|
|
4);
|
|
|
|
/* We need relocs only if the target symbol was undefined or if
|
|
we're relaxing. */
|
|
if (reloc_needed)
|
|
{
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset - 12, 1,
|
|
reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_MEDHI16
|
|
: BFD_RELOC_SH_IMM_MEDHI16_PCREL);
|
|
fix_new (fragP, var_partp - fragP->fr_literal, 4, fragP->fr_symbol,
|
|
fragP->fr_offset - 8, 1,
|
|
reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_MEDLOW16
|
|
: BFD_RELOC_SH_IMM_MEDLOW16_PCREL);
|
|
fix_new (fragP, var_partp - fragP->fr_literal + 4, 4, fragP->fr_symbol,
|
|
fragP->fr_offset - 4, 1,
|
|
reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_LOW16
|
|
: BFD_RELOC_SH_IMM_LOW16_PCREL);
|
|
}
|
|
|
|
var_part_size = 12;
|
|
break;
|
|
|
|
case C (SH64PCREL16_64, SH64PCRELPLT):
|
|
case C (SH64PCREL16PT_64, SH64PCRELPLT):
|
|
reloctype = BFD_RELOC_32_PLT_PCREL;
|
|
reloc_needed = 1;
|
|
/* Fall through */
|
|
|
|
case C (SH64PCREL16_64, SH64PCREL64):
|
|
case C (SH64PCREL16PT_64, SH64PCREL64):
|
|
/* In the fixed bit, put in a MOVI. */
|
|
md_number_to_chars (opcodep,
|
|
SHMEDIA_MOVI_OPC
|
|
| (SHMEDIA_TEMP_REG << 4)
|
|
| ((((reloc_needed
|
|
? 0 : (target_address - (opcode_address + 16))
|
|
) >> 48) & 65535) << 10),
|
|
4);
|
|
|
|
/* The first SHORI, for the medium-high part. */
|
|
md_number_to_chars (var_partp,
|
|
SHMEDIA_SHORI_OPC
|
|
| (SHMEDIA_TEMP_REG << 4)
|
|
| ((((reloc_needed
|
|
? 0 : (target_address - (opcode_address + 16))
|
|
) >> 32) & 65535) << 10),
|
|
4);
|
|
|
|
/* A SHORI, for the medium-low part. */
|
|
md_number_to_chars (var_partp + 4,
|
|
SHMEDIA_SHORI_OPC
|
|
| (SHMEDIA_TEMP_REG << 4)
|
|
| ((((reloc_needed
|
|
? 0 : (target_address - (opcode_address + 16))
|
|
) >> 16) & 65535) << 10),
|
|
4);
|
|
|
|
/* Fill in a SHORI for the low part. */
|
|
md_number_to_chars (var_partp + 8,
|
|
SHMEDIA_SHORI_OPC
|
|
| (SHMEDIA_TEMP_REG << 4)
|
|
| (((reloc_needed
|
|
? 0 : (target_address - (opcode_address + 16)))
|
|
& 65535) << 10),
|
|
4);
|
|
|
|
/* End with a "PTREL R25,TRd". */
|
|
md_number_to_chars (var_partp + 12,
|
|
SHMEDIA_PTREL_OPC | (insn & SHMEDIA_LIKELY_BIT)
|
|
| (SHMEDIA_TEMP_REG << 10)
|
|
| (insn & (7 << 4)),
|
|
4);
|
|
|
|
/* We need relocs only if the target symbol was undefined or if
|
|
we're relaxing. */
|
|
if (reloc_needed)
|
|
{
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset - 16, 1,
|
|
reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_HI16
|
|
: BFD_RELOC_SH_IMM_HI16_PCREL);
|
|
fix_new (fragP, var_partp - fragP->fr_literal, 4, fragP->fr_symbol,
|
|
fragP->fr_offset - 12, 1,
|
|
reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_MEDHI16
|
|
: BFD_RELOC_SH_IMM_MEDHI16_PCREL);
|
|
fix_new (fragP, var_partp - fragP->fr_literal + 4, 4, fragP->fr_symbol,
|
|
fragP->fr_offset - 8, 1,
|
|
reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_MEDLOW16
|
|
: BFD_RELOC_SH_IMM_MEDLOW16_PCREL);
|
|
fix_new (fragP, var_partp - fragP->fr_literal + 8, 4, fragP->fr_symbol,
|
|
fragP->fr_offset - 4, 1,
|
|
reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_LOW16
|
|
: BFD_RELOC_SH_IMM_LOW16_PCREL);
|
|
}
|
|
|
|
var_part_size = 16;
|
|
break;
|
|
|
|
case C (MOVI_IMM_64, MOVI_GOTOFF):
|
|
reloctype = BFD_RELOC_32_GOTOFF;
|
|
reloc_needed = 1;
|
|
/* Fall through. */
|
|
|
|
case C (MOVI_IMM_64, UNDEF_MOVI):
|
|
case C (MOVI_IMM_64, MOVI_64):
|
|
{
|
|
/* We only get here for undefined symbols, so we can simplify
|
|
handling compared to those above; we have 0 in the parts that
|
|
will be filled with the symbol parts. */
|
|
|
|
int reg = (insn >> 4) & 0x3f;
|
|
|
|
/* In the fixed bit, put in a MOVI. */
|
|
md_number_to_chars (opcodep, SHMEDIA_MOVI_OPC | (reg << 4), 4);
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset, 0,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_HI16
|
|
: reloctype == BFD_RELOC_32_GOTOFF
|
|
? BFD_RELOC_SH_GOTOFF_HI16
|
|
: (abort (), BFD_RELOC_SH_IMM_HI16));
|
|
|
|
/* The first SHORI, for the medium-high part. */
|
|
md_number_to_chars (var_partp, SHMEDIA_SHORI_OPC | (reg << 4), 4);
|
|
fix_new (fragP, var_partp - fragP->fr_literal, 4, fragP->fr_symbol,
|
|
fragP->fr_offset, 0,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_MEDHI16
|
|
: reloctype == BFD_RELOC_32_GOTOFF
|
|
? BFD_RELOC_SH_GOTOFF_MEDHI16
|
|
: (abort (), BFD_RELOC_SH_IMM_MEDHI16));
|
|
|
|
/* A SHORI, for the medium-low part. */
|
|
md_number_to_chars (var_partp + 4,
|
|
SHMEDIA_SHORI_OPC | (reg << 4), 4);
|
|
fix_new (fragP, var_partp - fragP->fr_literal + 4, 4, fragP->fr_symbol,
|
|
fragP->fr_offset, 0,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_MEDLOW16
|
|
: reloctype == BFD_RELOC_32_GOTOFF
|
|
? BFD_RELOC_SH_GOTOFF_MEDLOW16
|
|
: (abort (), BFD_RELOC_SH_IMM_MEDLOW16));
|
|
|
|
/* Fill in a SHORI for the low part. */
|
|
md_number_to_chars (var_partp + 8,
|
|
SHMEDIA_SHORI_OPC | (reg << 4), 4);
|
|
fix_new (fragP, var_partp - fragP->fr_literal + 8, 4, fragP->fr_symbol,
|
|
fragP->fr_offset, 0,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_LOW16
|
|
: reloctype == BFD_RELOC_32_GOTOFF
|
|
? BFD_RELOC_SH_GOTOFF_LOW16
|
|
: (abort (), BFD_RELOC_SH_IMM_LOW16));
|
|
|
|
var_part_size = 12;
|
|
break;
|
|
}
|
|
|
|
case C (MOVI_IMM_32, MOVI_GOTOFF):
|
|
reloctype = BFD_RELOC_32_GOTOFF;
|
|
reloc_needed = 1;
|
|
/* Fall through. */
|
|
|
|
case C (MOVI_IMM_32, UNDEF_MOVI):
|
|
case C (MOVI_IMM_32, MOVI_32):
|
|
{
|
|
/* Note that we only get here for undefined symbols. */
|
|
|
|
int reg = (insn >> 4) & 0x3f;
|
|
|
|
/* A MOVI, for the high part. */
|
|
md_number_to_chars (opcodep, SHMEDIA_MOVI_OPC | (reg << 4), 4);
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset, 0,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_MEDLOW16
|
|
: reloctype == BFD_RELOC_32_GOTOFF
|
|
? BFD_RELOC_SH_GOTOFF_MEDLOW16
|
|
: reloctype == BFD_RELOC_SH_GOTPC
|
|
? BFD_RELOC_SH_GOTPC_MEDLOW16
|
|
: reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_MEDLOW16
|
|
: (abort (), BFD_RELOC_SH_IMM_MEDLOW16));
|
|
|
|
/* Fill in a SHORI for the low part. */
|
|
md_number_to_chars (var_partp,
|
|
SHMEDIA_SHORI_OPC | (reg << 4), 4);
|
|
fix_new (fragP, var_partp - fragP->fr_literal, 4, fragP->fr_symbol,
|
|
fragP->fr_offset, 0,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_LOW16
|
|
: reloctype == BFD_RELOC_32_GOTOFF
|
|
? BFD_RELOC_SH_GOTOFF_LOW16
|
|
: reloctype == BFD_RELOC_SH_GOTPC
|
|
? BFD_RELOC_SH_GOTPC_LOW16
|
|
: reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_LOW16
|
|
: (abort (), BFD_RELOC_SH_IMM_LOW16));
|
|
|
|
var_part_size = 4;
|
|
break;
|
|
}
|
|
|
|
case C (MOVI_IMM_32_PCREL, MOVI_16):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_16):
|
|
md_number_to_chars (opcodep,
|
|
insn
|
|
| (((reloc_needed
|
|
? 0 : (target_address - opcode_address))
|
|
& 65535) << 10),
|
|
4);
|
|
if (reloc_needed)
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset, 1,
|
|
BFD_RELOC_SH_IMM_LOW16_PCREL);
|
|
var_part_size = 0;
|
|
break;
|
|
|
|
case C (MOVI_IMM_32, MOVI_16):
|
|
case C (MOVI_IMM_64, MOVI_16):
|
|
md_number_to_chars (opcodep,
|
|
insn
|
|
| (((reloc_needed ? 0 : target_address)
|
|
& 65535) << 10),
|
|
4);
|
|
if (reloc_needed)
|
|
abort ();
|
|
var_part_size = 0;
|
|
break;
|
|
|
|
case C (MOVI_IMM_32_PCREL, MOVI_PLT):
|
|
reloctype = BFD_RELOC_32_PLT_PCREL;
|
|
goto movi_imm_32_pcrel_reloc_needed;
|
|
|
|
case C (MOVI_IMM_32_PCREL, MOVI_GOTPC):
|
|
reloctype = BFD_RELOC_SH_GOTPC;
|
|
/* Fall through. */
|
|
|
|
movi_imm_32_pcrel_reloc_needed:
|
|
reloc_needed = 1;
|
|
/* Fall through. */
|
|
|
|
case C (MOVI_IMM_32_PCREL, MOVI_32):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_32):
|
|
{
|
|
int reg = (insn >> 4) & 0x3f;
|
|
|
|
md_number_to_chars (opcodep,
|
|
insn
|
|
| (((((reloc_needed
|
|
? 0 : (target_address - opcode_address)))
|
|
>> 16) & 65535) << 10), 4);
|
|
|
|
/* A SHORI, for the low part. */
|
|
md_number_to_chars (var_partp,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| (((reloc_needed
|
|
? 0 : (target_address - opcode_address))
|
|
& 65535) << 10), 4);
|
|
if (reloc_needed)
|
|
{
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset, 1,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_MEDLOW16_PCREL
|
|
: reloctype == BFD_RELOC_SH_GOTPC
|
|
? BFD_RELOC_SH_GOTPC_MEDLOW16
|
|
: reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_MEDLOW16
|
|
: (abort (), BFD_RELOC_SH_IMM_MEDLOW16_PCREL));
|
|
fix_new (fragP, var_partp - fragP->fr_literal, 4, fragP->fr_symbol,
|
|
fragP->fr_offset + 4, 1,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_LOW16_PCREL
|
|
: reloctype == BFD_RELOC_SH_GOTPC
|
|
? BFD_RELOC_SH_GOTPC_LOW16
|
|
: reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_LOW16
|
|
: (abort (), BFD_RELOC_SH_IMM_LOW16_PCREL));
|
|
}
|
|
var_part_size = 4;
|
|
}
|
|
break;
|
|
|
|
case C (MOVI_IMM_32_PCREL, MOVI_48):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_48):
|
|
{
|
|
int reg = (insn >> 4) & 0x3f;
|
|
|
|
md_number_to_chars (opcodep,
|
|
insn
|
|
| (((((reloc_needed
|
|
? 0 : (target_address - opcode_address)))
|
|
>> 32) & 65535) << 10), 4);
|
|
|
|
/* A SHORI, for the medium part. */
|
|
md_number_to_chars (var_partp,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| ((((reloc_needed
|
|
? 0 : (target_address - opcode_address))
|
|
>> 16) & 65535) << 10), 4);
|
|
|
|
/* A SHORI, for the low part. */
|
|
md_number_to_chars (var_partp + 4,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| (((reloc_needed
|
|
? 0 : (target_address - opcode_address))
|
|
& 65535) << 10), 4);
|
|
if (reloc_needed)
|
|
{
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset, 1,
|
|
BFD_RELOC_SH_IMM_MEDHI16_PCREL);
|
|
fix_new (fragP, var_partp - fragP->fr_literal, 4, fragP->fr_symbol,
|
|
fragP->fr_offset + 4, 1, BFD_RELOC_SH_IMM_MEDLOW16_PCREL);
|
|
fix_new (fragP, var_partp - fragP->fr_literal + 4, 4, fragP->fr_symbol,
|
|
fragP->fr_offset + 8, 1, BFD_RELOC_SH_IMM_LOW16_PCREL);
|
|
}
|
|
var_part_size = 8;
|
|
}
|
|
break;
|
|
|
|
case C (MOVI_IMM_64_PCREL, MOVI_PLT):
|
|
reloctype = BFD_RELOC_32_PLT_PCREL;
|
|
goto movi_imm_64_pcrel_reloc_needed;
|
|
|
|
case C (MOVI_IMM_64_PCREL, MOVI_GOTPC):
|
|
reloctype = BFD_RELOC_SH_GOTPC;
|
|
/* Fall through. */
|
|
|
|
movi_imm_64_pcrel_reloc_needed:
|
|
reloc_needed = 1;
|
|
/* Fall through. */
|
|
|
|
case C (MOVI_IMM_32_PCREL, MOVI_64):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_64):
|
|
{
|
|
int reg = (insn >> 4) & 0x3f;
|
|
|
|
md_number_to_chars (opcodep,
|
|
insn
|
|
| (((((reloc_needed
|
|
? 0 : (target_address - opcode_address)))
|
|
>> 48) & 65535) << 10), 4);
|
|
|
|
/* A SHORI, for the medium-high part. */
|
|
md_number_to_chars (var_partp,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| ((((reloc_needed
|
|
? 0 : (target_address - opcode_address))
|
|
>> 32) & 65535) << 10), 4);
|
|
|
|
/* A SHORI, for the medium-low part. */
|
|
md_number_to_chars (var_partp + 4,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| ((((reloc_needed
|
|
? 0 : (target_address - opcode_address))
|
|
>> 16) & 65535) << 10), 4);
|
|
|
|
/* A SHORI, for the low part. */
|
|
md_number_to_chars (var_partp + 8,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| (((reloc_needed
|
|
? 0 : (target_address - opcode_address))
|
|
& 65535) << 10), 4);
|
|
if (reloc_needed)
|
|
{
|
|
fix_new (opc_fragP, opcodep - opc_fragP->fr_literal, 4,
|
|
fragP->fr_symbol, fragP->fr_offset, 1,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_HI16_PCREL
|
|
: reloctype == BFD_RELOC_SH_GOTPC
|
|
? BFD_RELOC_SH_GOTPC_HI16
|
|
: reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_HI16
|
|
: (abort (), BFD_RELOC_SH_IMM_HI16_PCREL));
|
|
fix_new (fragP, var_partp - fragP->fr_literal, 4, fragP->fr_symbol,
|
|
fragP->fr_offset + 4, 1,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_MEDHI16_PCREL
|
|
: reloctype == BFD_RELOC_SH_GOTPC
|
|
? BFD_RELOC_SH_GOTPC_MEDHI16
|
|
: reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_MEDHI16
|
|
: (abort (), BFD_RELOC_SH_IMM_MEDHI16_PCREL));
|
|
fix_new (fragP, var_partp - fragP->fr_literal + 4, 4,
|
|
fragP->fr_symbol,
|
|
fragP->fr_offset + 8, 1,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_MEDLOW16_PCREL
|
|
: reloctype == BFD_RELOC_SH_GOTPC
|
|
? BFD_RELOC_SH_GOTPC_MEDLOW16
|
|
: reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_MEDLOW16
|
|
: (abort (), BFD_RELOC_SH_IMM_MEDLOW16_PCREL));
|
|
fix_new (fragP, var_partp - fragP->fr_literal + 8, 4,
|
|
fragP->fr_symbol,
|
|
fragP->fr_offset + 12, 1,
|
|
reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_IMM_LOW16_PCREL
|
|
: reloctype == BFD_RELOC_SH_GOTPC
|
|
? BFD_RELOC_SH_GOTPC_LOW16
|
|
: reloctype == BFD_RELOC_32_PLT_PCREL
|
|
? BFD_RELOC_SH_PLT_LOW16
|
|
: (abort (), BFD_RELOC_SH_IMM_LOW16_PCREL));
|
|
}
|
|
var_part_size = 12;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
BAD_CASE (fragP->fr_subtype);
|
|
}
|
|
|
|
fragP->fr_fix += var_part_size;
|
|
fragP->fr_var = 0;
|
|
}
|
|
|
|
/* Mask NUMBER (originating from a signed number) corresponding to the HOW
|
|
reloc. */
|
|
|
|
static unsigned long
|
|
shmedia_mask_number (number, how)
|
|
unsigned long number;
|
|
bfd_reloc_code_real_type how;
|
|
{
|
|
switch (how)
|
|
{
|
|
case BFD_RELOC_SH_IMMU5:
|
|
number &= (1 << 5) - 1;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS6:
|
|
case BFD_RELOC_SH_IMMU6:
|
|
number &= (1 << 6) - 1;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS6BY32:
|
|
number = (number & ((1 << (6 + 5)) - 1)) >> 5;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10:
|
|
number &= (1 << 10) - 1;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10BY2:
|
|
number = (number & ((1 << (10 + 1)) - 1)) >> 1;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10BY4:
|
|
number = (number & ((1 << (10 + 2)) - 1)) >> 2;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10BY8:
|
|
number = (number & ((1 << (10 + 3)) - 1)) >> 3;
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS16:
|
|
case BFD_RELOC_SH_IMMU16:
|
|
number &= (1 << 16) - 1;
|
|
break;
|
|
|
|
default:
|
|
BAD_CASE (how);
|
|
}
|
|
|
|
return number;
|
|
}
|
|
|
|
/* Emit errors for values out-of-range, using as_bad_where if FRAGP is
|
|
non-NULL, as_bad otherwise. */
|
|
|
|
static void
|
|
shmedia_check_limits (valp, reloc, fixp)
|
|
offsetT *valp;
|
|
bfd_reloc_code_real_type reloc;
|
|
fixS *fixp;
|
|
{
|
|
offsetT val = *valp;
|
|
|
|
char *msg = NULL;
|
|
|
|
switch (reloc)
|
|
{
|
|
case BFD_RELOC_SH_IMMU5:
|
|
if (val < 0 || val > (1 << 5) - 1)
|
|
msg = _("invalid operand, not a 5-bit unsigned value: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS6:
|
|
if (val < -(1 << 5) || val > (1 << 5) - 1)
|
|
msg = _("invalid operand, not a 6-bit signed value: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMU6:
|
|
if (val < 0 || val > (1 << 6) - 1)
|
|
msg = _("invalid operand, not a 6-bit unsigned value: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS6BY32:
|
|
if (val < -(1 << 10) || val > (1 << 10) - 1)
|
|
msg = _("invalid operand, not a 11-bit signed value: %d");
|
|
else if (val & 31)
|
|
msg = _("invalid operand, not a multiple of 32: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10:
|
|
if (val < -(1 << 9) || val > (1 << 9) - 1)
|
|
msg = _("invalid operand, not a 10-bit signed value: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10BY2:
|
|
if (val < -(1 << 10) || val > (1 << 10) - 1)
|
|
msg = _("invalid operand, not a 11-bit signed value: %d");
|
|
else if (val & 1)
|
|
msg = _("invalid operand, not an even value: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10BY4:
|
|
if (val < -(1 << 11) || val > (1 << 11) - 1)
|
|
msg = _("invalid operand, not a 12-bit signed value: %d");
|
|
else if (val & 3)
|
|
msg = _("invalid operand, not a multiple of 4: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS10BY8:
|
|
if (val < -(1 << 12) || val > (1 << 12) - 1)
|
|
msg = _("invalid operand, not a 13-bit signed value: %d");
|
|
else if (val & 7)
|
|
msg = _("invalid operand, not a multiple of 8: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMS16:
|
|
if (val < -(1 << 15) || val > (1 << 15) - 1)
|
|
msg = _("invalid operand, not a 16-bit signed value: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_IMMU16:
|
|
if (val < 0 || val > (1 << 16) - 1)
|
|
msg = _("invalid operand, not an 16-bit unsigned value: %d");
|
|
break;
|
|
|
|
case BFD_RELOC_SH_PT_16:
|
|
case SHMEDIA_BFD_RELOC_PT:
|
|
if (val < -(1 << 15) * 4 || val > ((1 << 15) - 1) * 4 + 1)
|
|
msg = _("operand out of range for PT, PTA and PTB");
|
|
else if ((val % 4) != 0 && ((val - 1) % 4) != 0)
|
|
msg = _("operand not a multiple of 4 for PT, PTA or PTB: %d");
|
|
break;
|
|
|
|
/* These have no limits; they take a 16-bit slice of a 32- or 64-bit
|
|
number. */
|
|
case BFD_RELOC_SH_IMM_HI16:
|
|
case BFD_RELOC_SH_IMM_MEDHI16:
|
|
case BFD_RELOC_SH_IMM_MEDLOW16:
|
|
case BFD_RELOC_SH_IMM_LOW16:
|
|
case BFD_RELOC_SH_IMM_HI16_PCREL:
|
|
case BFD_RELOC_SH_IMM_MEDHI16_PCREL:
|
|
case BFD_RELOC_SH_IMM_MEDLOW16_PCREL:
|
|
case BFD_RELOC_SH_IMM_LOW16_PCREL:
|
|
|
|
case BFD_RELOC_SH_SHMEDIA_CODE:
|
|
break;
|
|
|
|
/* This one has limits out of our reach. */
|
|
case BFD_RELOC_64:
|
|
break;
|
|
|
|
default:
|
|
BAD_CASE (reloc);
|
|
}
|
|
|
|
if (msg)
|
|
{
|
|
if (fixp)
|
|
as_bad_where (fixp->fx_file, fixp->fx_line, msg, val);
|
|
else
|
|
as_bad (msg, val);
|
|
}
|
|
}
|
|
|
|
/* Handle an immediate operand by checking limits and noting it for later
|
|
evaluation if not computable yet, and return a bitfield suitable to
|
|
"or" into the opcode (non-zero if the value was a constant number). */
|
|
|
|
static unsigned long
|
|
shmedia_immediate_op (where, op, pcrel, how)
|
|
char *where;
|
|
shmedia_operand_info *op;
|
|
int pcrel;
|
|
bfd_reloc_code_real_type how;
|
|
{
|
|
unsigned long retval = 0;
|
|
|
|
/* If this is not an absolute number, make it a fixup. A constant in
|
|
place of a pc-relative operand also needs a fixup. */
|
|
if (op->immediate.X_op != O_constant || pcrel)
|
|
fix_new_exp (frag_now,
|
|
where - frag_now->fr_literal,
|
|
4,
|
|
&op->immediate,
|
|
pcrel,
|
|
how);
|
|
else
|
|
{
|
|
/* Check that the number is within limits as represented by the
|
|
reloc, and return the number. */
|
|
shmedia_check_limits (&op->immediate.X_add_number, how, NULL);
|
|
|
|
retval
|
|
= shmedia_mask_number ((unsigned long) op->immediate.X_add_number,
|
|
how);
|
|
}
|
|
|
|
return retval << 10;
|
|
}
|
|
|
|
/* Try and parse a register name case-insensitively, return the number of
|
|
chars consumed. */
|
|
|
|
static int
|
|
shmedia_parse_reg (src, mode, reg, argtype)
|
|
char *src;
|
|
int *mode;
|
|
int *reg;
|
|
shmedia_arg_type argtype;
|
|
{
|
|
int l0 = TOLOWER (src[0]);
|
|
int l1 = l0 ? TOLOWER (src[1]) : 0;
|
|
|
|
if (l0 == 'r')
|
|
{
|
|
if (src[1] >= '1' && src[1] <= '5')
|
|
{
|
|
if (src[2] >= '0' && src[2] <= '9'
|
|
&& ! IDENT_CHAR ((unsigned char) src[3]))
|
|
{
|
|
*mode = A_GREG_M;
|
|
*reg = 10 * (src[1] - '0') + src[2] - '0';
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
if (src[1] == '6')
|
|
{
|
|
if (src[2] >= '0' && src[2] <= '3'
|
|
&& ! IDENT_CHAR ((unsigned char) src[3]))
|
|
{
|
|
*mode = A_GREG_M;
|
|
*reg = 60 + src[2] - '0';
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
if (src[1] >= '0' && src[1] <= '9'
|
|
&& ! IDENT_CHAR ((unsigned char) src[2]))
|
|
{
|
|
*mode = A_GREG_M;
|
|
*reg = (src[1] - '0');
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
if (l0 == 't' && l1 == 'r')
|
|
{
|
|
if (src[2] >= '0' && src[2] <= '7'
|
|
&& ! IDENT_CHAR ((unsigned char) src[3]))
|
|
{
|
|
*mode = A_TREG_B;
|
|
*reg = (src[2] - '0');
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
if (l0 == 'f' && l1 == 'r')
|
|
{
|
|
if (src[2] >= '1' && src[2] <= '5')
|
|
{
|
|
if (src[3] >= '0' && src[3] <= '9'
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_FREG_G;
|
|
*reg = 10 * (src[2] - '0') + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
if (src[2] == '6')
|
|
{
|
|
if (src[3] >= '0' && src[3] <= '3'
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_FREG_G;
|
|
*reg = 60 + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
if (src[2] >= '0' && src[2] <= '9'
|
|
&& ! IDENT_CHAR ((unsigned char) src[3]))
|
|
{
|
|
*mode = A_FREG_G;
|
|
*reg = (src[2] - '0');
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
if (l0 == 'f' && l1 == 'v')
|
|
{
|
|
if (src[2] >= '1' && src[2] <= '5')
|
|
{
|
|
if (src[3] >= '0' && src[3] <= '9'
|
|
&& ((10 * (src[2] - '0') + src[3] - '0') % 4) == 0
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_FVREG_G;
|
|
*reg = 10 * (src[2] - '0') + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
if (src[2] == '6')
|
|
{
|
|
if (src[3] == '0'
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_FVREG_G;
|
|
*reg = 60 + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
if (src[2] >= '0' && src[2] <= '9'
|
|
&& ((src[2] - '0') % 4) == 0
|
|
&& ! IDENT_CHAR ((unsigned char) src[3]))
|
|
{
|
|
*mode = A_FVREG_G;
|
|
*reg = (src[2] - '0');
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
if (l0 == 'd' && l1 == 'r')
|
|
{
|
|
if (src[2] >= '1' && src[2] <= '5')
|
|
{
|
|
if (src[3] >= '0' && src[3] <= '9'
|
|
&& ((src[3] - '0') % 2) == 0
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_DREG_G;
|
|
*reg = 10 * (src[2] - '0') + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
|
|
if (src[2] == '6')
|
|
{
|
|
if ((src[3] == '0' || src[3] == '2')
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_DREG_G;
|
|
*reg = 60 + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
|
|
if (src[2] >= '0' && src[2] <= '9'
|
|
&& ((src[2] - '0') % 2) == 0
|
|
&& ! IDENT_CHAR ((unsigned char) src[3]))
|
|
{
|
|
*mode = A_DREG_G;
|
|
*reg = (src[2] - '0');
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
if (l0 == 'f' && l1 == 'p')
|
|
{
|
|
if (src[2] >= '1' && src[2] <= '5')
|
|
{
|
|
if (src[3] >= '0' && src[3] <= '9'
|
|
&& ((src[3] - '0') % 2) == 0
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_FPREG_G;
|
|
*reg = 10 * (src[2] - '0') + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
|
|
if (src[2] == '6')
|
|
{
|
|
if ((src[3] == '0' || src[3] == '2')
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_FPREG_G;
|
|
*reg = 60 + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
|
|
if (src[2] >= '0' && src[2] <= '9'
|
|
&& ((src[2] - '0') % 2) == 0
|
|
&& ! IDENT_CHAR ((unsigned char) src[3]))
|
|
{
|
|
*mode = A_FPREG_G;
|
|
*reg = (src[2] - '0');
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
if (l0 == 'm' && strncasecmp (src, "mtrx", 4) == 0)
|
|
{
|
|
if (src[4] == '0' && ! IDENT_CHAR ((unsigned char) src[5]))
|
|
{
|
|
*mode = A_FMREG_G;
|
|
*reg = 0;
|
|
return 5;
|
|
}
|
|
|
|
if (src[4] == '1' && src[5] == '6'
|
|
&& ! IDENT_CHAR ((unsigned char) src[6]))
|
|
{
|
|
*mode = A_FMREG_G;
|
|
*reg = 16;
|
|
return 6;
|
|
}
|
|
|
|
if (src[4] == '3' && src[5] == '2'
|
|
&& ! IDENT_CHAR ((unsigned char) src[6]))
|
|
{
|
|
*mode = A_FMREG_G;
|
|
*reg = 32;
|
|
return 6;
|
|
}
|
|
|
|
if (src[4] == '4' && src[5] == '8'
|
|
&& ! IDENT_CHAR ((unsigned char) src[6]))
|
|
{
|
|
*mode = A_FMREG_G;
|
|
*reg = 48;
|
|
return 6;
|
|
}
|
|
}
|
|
|
|
if (l0 == 'c' && l1 == 'r')
|
|
{
|
|
if (src[2] >= '1' && src[2] <= '5')
|
|
{
|
|
if (src[3] >= '0' && src[3] <= '9'
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_CREG_K;
|
|
*reg = 10 * (src[2] - '0') + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
if (src[2] == '6')
|
|
{
|
|
if (src[3] >= '0' && src[3] <= '3'
|
|
&& ! IDENT_CHAR ((unsigned char) src[4]))
|
|
{
|
|
*mode = A_CREG_K;
|
|
*reg = 60 + src[3] - '0';
|
|
return 4;
|
|
}
|
|
}
|
|
if (src[2] >= '0' && src[2] <= '9'
|
|
&& ! IDENT_CHAR ((unsigned char) src[3]))
|
|
{
|
|
*mode = A_CREG_K;
|
|
*reg = (src[2] - '0');
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
/* We either have an error, a symbol or a control register by predefined
|
|
name. To keep things simple but still fast for normal cases, we do
|
|
linear search in the (not to big) table of predefined control
|
|
registers. We only do this when we *expect* a control register.
|
|
Those instructions should be rare enough that linear searching is ok.
|
|
Or just read them into a hash-table in shmedia_md_begin. Since they
|
|
cannot be specified in the same place of symbol operands, don't add
|
|
them there to the *main* symbol table as being in "reg_section". */
|
|
if (argtype == A_CREG_J || argtype == A_CREG_K)
|
|
{
|
|
const shmedia_creg_info *cregp;
|
|
int len = 0;
|
|
|
|
for (cregp = shmedia_creg_table; cregp->name != NULL; cregp++)
|
|
{
|
|
len = strlen (cregp->name);
|
|
if (strncasecmp (cregp->name, src, len) == 0
|
|
&& ! IDENT_CHAR (src[len]))
|
|
break;
|
|
}
|
|
|
|
if (cregp->name != NULL)
|
|
{
|
|
*mode = A_CREG_K;
|
|
*reg = cregp->cregno;
|
|
return len;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Called from md_estimate_size_before_relax in tc-sh.c */
|
|
|
|
static int
|
|
shmedia_md_estimate_size_before_relax (fragP, segment_type)
|
|
fragS *fragP;
|
|
segT segment_type ATTRIBUTE_UNUSED;
|
|
{
|
|
int old_fr_fix;
|
|
expressionS *exp;
|
|
|
|
/* For ELF, we can't relax externally visible symbols; see tc-i386.c. */
|
|
bfd_boolean sym_relaxable
|
|
= (fragP->fr_symbol
|
|
&& S_GET_SEGMENT (fragP->fr_symbol) == segment_type
|
|
&& ! S_IS_EXTERNAL (fragP->fr_symbol)
|
|
&& ! S_IS_WEAK (fragP->fr_symbol));
|
|
|
|
old_fr_fix = fragP->fr_fix;
|
|
|
|
switch (fragP->fr_subtype)
|
|
{
|
|
case C (SH64PCREL16_32, UNDEF_SH64PCREL):
|
|
case C (SH64PCREL16PT_32, UNDEF_SH64PCREL):
|
|
/* Used to be to somewhere which was unknown. */
|
|
if (sym_relaxable)
|
|
{
|
|
int what = GET_WHAT (fragP->fr_subtype);
|
|
|
|
/* In this segment, so head for shortest. */
|
|
fragP->fr_subtype = C (what, SH64PCREL16);
|
|
}
|
|
else
|
|
{
|
|
int what = GET_WHAT (fragP->fr_subtype);
|
|
/* We know the abs value, but we don't know where we will be
|
|
linked, so we must make it the longest. Presumably we could
|
|
switch to a non-pcrel representation, but having absolute
|
|
values in PT operands should be rare enough not to be worth
|
|
adding that code. */
|
|
fragP->fr_subtype = C (what, SH64PCREL32);
|
|
}
|
|
fragP->fr_var = md_relax_table[fragP->fr_subtype].rlx_length;
|
|
break;
|
|
|
|
case C (SH64PCREL16_64, UNDEF_SH64PCREL):
|
|
case C (SH64PCREL16PT_64, UNDEF_SH64PCREL):
|
|
/* Used to be to somewhere which was unknown. */
|
|
if (sym_relaxable)
|
|
{
|
|
int what = GET_WHAT (fragP->fr_subtype);
|
|
|
|
/* In this segment, so head for shortest. */
|
|
fragP->fr_subtype = C (what, SH64PCREL16);
|
|
}
|
|
else
|
|
{
|
|
int what = GET_WHAT (fragP->fr_subtype);
|
|
/* We know the abs value, but we don't know where we will be
|
|
linked, so we must make it the longest. Presumably we could
|
|
switch to a non-pcrel representation, but having absolute
|
|
values in PT operands should be rare enough not to be worth
|
|
adding that code. */
|
|
fragP->fr_subtype = C (what, SH64PCREL64);
|
|
}
|
|
fragP->fr_var = md_relax_table[fragP->fr_subtype].rlx_length;
|
|
break;
|
|
|
|
case C (MOVI_IMM_64, UNDEF_MOVI):
|
|
case C (MOVI_IMM_32, UNDEF_MOVI):
|
|
exp = NULL;
|
|
|
|
/* Look inside the "symbol". If we find a PC-relative expression,
|
|
change this to a PC-relative, relaxable expression. */
|
|
if (fragP->fr_symbol != NULL
|
|
&& (exp = symbol_get_value_expression (fragP->fr_symbol)) != NULL
|
|
&& exp->X_op == O_subtract
|
|
&& exp->X_op_symbol != NULL
|
|
&& S_GET_SEGMENT (exp->X_op_symbol) == segment_type)
|
|
{
|
|
int what = GET_WHAT (fragP->fr_subtype);
|
|
int what_high = what == MOVI_IMM_32 ? MOVI_32 : MOVI_64;
|
|
expressionS *opexp
|
|
= symbol_get_value_expression (exp->X_op_symbol);
|
|
expressionS *addexp
|
|
= symbol_get_value_expression (exp->X_add_symbol);
|
|
|
|
/* Change the MOVI expression to the "X" in "X - Y" and subtract
|
|
Y:s offset to this location from X. Note that we can only
|
|
allow an Y which is offset from this frag. */
|
|
if (opexp != NULL
|
|
&& addexp != NULL
|
|
&& opexp->X_op == O_constant
|
|
&& fragP == symbol_get_frag (exp->X_op_symbol))
|
|
{
|
|
/* At this point, before relaxing, the add-number of opexp
|
|
is the offset from the fr_fix part. */
|
|
fragP->fr_offset
|
|
= (exp->X_add_number
|
|
- (opexp->X_add_number - (fragP->fr_fix - 4)));
|
|
fragP->fr_symbol = exp->X_add_symbol;
|
|
|
|
what = what == MOVI_IMM_32
|
|
? MOVI_IMM_32_PCREL : MOVI_IMM_64_PCREL;
|
|
|
|
/* Check the "X" symbol to estimate the size of this
|
|
PC-relative expression. */
|
|
if (S_GET_SEGMENT (exp->X_add_symbol) == segment_type
|
|
&& ! S_IS_EXTERNAL (exp->X_add_symbol)
|
|
&& ! S_IS_WEAK (exp->X_add_symbol))
|
|
fragP->fr_subtype = C (what, MOVI_16);
|
|
else
|
|
fragP->fr_subtype = C (what, what_high);
|
|
|
|
/* This is now a PC-relative expression, fit to be relaxed. */
|
|
}
|
|
else
|
|
fragP->fr_subtype = C (what, what_high);
|
|
}
|
|
else if (fragP->fr_symbol == NULL
|
|
|| (S_GET_SEGMENT (fragP->fr_symbol) == absolute_section
|
|
&& exp->X_op == O_constant))
|
|
{
|
|
unsigned long insn
|
|
= (target_big_endian
|
|
? bfd_getb32 (fragP->fr_opcode)
|
|
: bfd_getl32 (fragP->fr_opcode));
|
|
offsetT one = (offsetT) 1;
|
|
offsetT value = fragP->fr_offset
|
|
+ (fragP->fr_symbol == NULL ? 0 : S_GET_VALUE (fragP->fr_symbol));
|
|
|
|
if (value >= ((offsetT) -1 << 15) && value < ((offsetT) 1 << 15))
|
|
{
|
|
/* Fits in 16-bit signed number. */
|
|
int what = GET_WHAT (fragP->fr_subtype);
|
|
fragP->fr_subtype = C (what, MOVI_16);
|
|
|
|
/* Just "or" in the value. */
|
|
md_number_to_chars (fragP->fr_opcode,
|
|
insn | ((value & ((1 << 16) - 1)) << 10),
|
|
4);
|
|
}
|
|
else if (value >= -(one << 31)
|
|
&& (value < (one << 31)
|
|
|| (sh64_abi == sh64_abi_32 && value < (one << 32))))
|
|
{
|
|
/* The value fits in a 32-bit signed number. */
|
|
int reg = (insn >> 4) & 0x3f;
|
|
|
|
/* Just "or" in the high bits of the value, making the first
|
|
MOVI. */
|
|
md_number_to_chars (fragP->fr_opcode,
|
|
insn
|
|
| (((value >> 16) & ((1 << 16) - 1)) << 10),
|
|
4);
|
|
|
|
/* Add a SHORI with the low bits. Note that this insn lives
|
|
in the variable fragment part. */
|
|
md_number_to_chars (fragP->fr_literal + old_fr_fix,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| ((value & ((1 << 16) - 1)) << 10),
|
|
4);
|
|
|
|
/* We took a piece of the variable part. */
|
|
fragP->fr_fix += 4;
|
|
}
|
|
else if (GET_WHAT (fragP->fr_subtype) == MOVI_IMM_32)
|
|
{
|
|
/* Value out of range. */
|
|
as_bad_where (fragP->fr_file, fragP->fr_line,
|
|
_("MOVI operand is not a 32-bit signed value: 0x%8x%08x"),
|
|
((unsigned int) (value >> 32)
|
|
& (unsigned int) 0xffffffff),
|
|
(unsigned int) value & (unsigned int) 0xffffffff);
|
|
|
|
/* Must advance size, or we will get internal inconsistency
|
|
and fall into an assert. */
|
|
fragP->fr_fix += 4;
|
|
}
|
|
/* Now we know we are allowed to expand to 48- and 64-bit values. */
|
|
else if (value >= -(one << 47) && value < (one << 47))
|
|
{
|
|
/* The value fits in a 48-bit signed number. */
|
|
int reg = (insn >> 4) & 0x3f;
|
|
|
|
/* Just "or" in the high bits of the value, making the first
|
|
MOVI. */
|
|
md_number_to_chars (fragP->fr_opcode,
|
|
insn
|
|
| (((value >> 32) & ((1 << 16) - 1)) << 10),
|
|
4);
|
|
|
|
/* Add a SHORI with the middle bits. Note that this insn lives
|
|
in the variable fragment part. */
|
|
md_number_to_chars (fragP->fr_literal + old_fr_fix,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| (((value >> 16) & ((1 << 16) - 1)) << 10),
|
|
4);
|
|
|
|
/* Add a SHORI with the low bits. */
|
|
md_number_to_chars (fragP->fr_literal + old_fr_fix + 4,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| ((value & ((1 << 16) - 1)) << 10),
|
|
4);
|
|
|
|
/* We took a piece of the variable part. */
|
|
fragP->fr_fix += 8;
|
|
}
|
|
else
|
|
{
|
|
/* A 64-bit number. */
|
|
int reg = (insn >> 4) & 0x3f;
|
|
|
|
/* Just "or" in the high bits of the value, making the first
|
|
MOVI. */
|
|
md_number_to_chars (fragP->fr_opcode,
|
|
insn
|
|
| (((value >> 48) & ((1 << 16) - 1)) << 10),
|
|
4);
|
|
|
|
/* Add a SHORI with the midhigh bits. Note that this insn lives
|
|
in the variable fragment part. */
|
|
md_number_to_chars (fragP->fr_literal + old_fr_fix,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| (((value >> 32) & ((1 << 16) - 1)) << 10),
|
|
4);
|
|
|
|
/* Add a SHORI with the midlow bits. */
|
|
md_number_to_chars (fragP->fr_literal + old_fr_fix + 4,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| (((value >> 16) & ((1 << 16) - 1)) << 10),
|
|
4);
|
|
|
|
/* Add a SHORI with the low bits. */
|
|
md_number_to_chars (fragP->fr_literal + old_fr_fix + 8,
|
|
SHMEDIA_SHORI_OPC
|
|
| (reg << 4)
|
|
| ((value & ((1 << 16) - 1)) << 10), 4);
|
|
/* We took all of the variable part. */
|
|
fragP->fr_fix += 12;
|
|
}
|
|
|
|
/* MOVI expansions that get here have not been converted to
|
|
PC-relative frags, but instead expanded by
|
|
md_number_to_chars or by calling shmedia_md_convert_frag
|
|
with final == FALSE. We must not have them around as
|
|
frags anymore; symbols would be prematurely evaluated
|
|
when relaxing. We will not need to have md_convert_frag
|
|
called again with them; any further handling is through
|
|
the already emitted fixups. */
|
|
frag_wane (fragP);
|
|
break;
|
|
}
|
|
fragP->fr_var = md_relax_table[fragP->fr_subtype].rlx_length;
|
|
break;
|
|
|
|
/* For relaxation states that remain unchanged, report the
|
|
estimated length. */
|
|
case C (SH64PCREL16_32, SH64PCREL16):
|
|
case C (SH64PCREL16PT_32, SH64PCREL16):
|
|
case C (SH64PCREL16_32, SH64PCREL32):
|
|
case C (SH64PCREL16PT_32, SH64PCREL32):
|
|
case C (SH64PCREL16_32, SH64PCRELPLT):
|
|
case C (SH64PCREL16PT_32, SH64PCRELPLT):
|
|
case C (SH64PCREL16_64, SH64PCREL16):
|
|
case C (SH64PCREL16PT_64, SH64PCREL16):
|
|
case C (SH64PCREL16_64, SH64PCREL32):
|
|
case C (SH64PCREL16PT_64, SH64PCREL32):
|
|
case C (SH64PCREL16_64, SH64PCREL48):
|
|
case C (SH64PCREL16PT_64, SH64PCREL48):
|
|
case C (SH64PCREL16_64, SH64PCREL64):
|
|
case C (SH64PCREL16PT_64, SH64PCREL64):
|
|
case C (SH64PCREL16_64, SH64PCRELPLT):
|
|
case C (SH64PCREL16PT_64, SH64PCRELPLT):
|
|
case C (MOVI_IMM_32, MOVI_16):
|
|
case C (MOVI_IMM_32, MOVI_32):
|
|
case C (MOVI_IMM_32, MOVI_GOTOFF):
|
|
case C (MOVI_IMM_32_PCREL, MOVI_16):
|
|
case C (MOVI_IMM_32_PCREL, MOVI_32):
|
|
case C (MOVI_IMM_32_PCREL, MOVI_PLT):
|
|
case C (MOVI_IMM_32_PCREL, MOVI_GOTPC):
|
|
case C (MOVI_IMM_64, MOVI_16):
|
|
case C (MOVI_IMM_64, MOVI_32):
|
|
case C (MOVI_IMM_64, MOVI_48):
|
|
case C (MOVI_IMM_64, MOVI_64):
|
|
case C (MOVI_IMM_64, MOVI_GOTOFF):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_16):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_32):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_48):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_64):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_PLT):
|
|
case C (MOVI_IMM_64_PCREL, MOVI_GOTPC):
|
|
fragP->fr_var = md_relax_table[fragP->fr_subtype].rlx_length;
|
|
break;
|
|
|
|
default:
|
|
abort ();
|
|
}
|
|
|
|
return fragP->fr_var + (fragP->fr_fix - old_fr_fix);
|
|
}
|
|
|
|
/* Parse an expression, SH64-style. Copied from tc-sh.c, but with
|
|
datatypes adjusted. */
|
|
|
|
static char *
|
|
shmedia_parse_exp (s, op)
|
|
char *s;
|
|
shmedia_operand_info *op;
|
|
{
|
|
char *save;
|
|
char *new;
|
|
|
|
save = input_line_pointer;
|
|
input_line_pointer = s;
|
|
expression (&op->immediate);
|
|
if (op->immediate.X_op == O_absent)
|
|
as_bad (_("missing operand"));
|
|
new = input_line_pointer;
|
|
input_line_pointer = save;
|
|
return new;
|
|
}
|
|
|
|
/* Parse an operand. Store pointer to next character in *PTR. */
|
|
|
|
static void
|
|
shmedia_get_operand (ptr, op, argtype)
|
|
char **ptr;
|
|
shmedia_operand_info *op;
|
|
shmedia_arg_type argtype;
|
|
{
|
|
char *src = *ptr;
|
|
int mode = -1;
|
|
unsigned int len;
|
|
|
|
len = shmedia_parse_reg (src, &mode, &(op->reg), argtype);
|
|
if (len)
|
|
{
|
|
*ptr = src + len;
|
|
op->type = mode;
|
|
}
|
|
else
|
|
{
|
|
/* Not a reg, so it must be a displacement. */
|
|
*ptr = shmedia_parse_exp (src, op);
|
|
op->type = A_IMMM;
|
|
|
|
/* This is just an initialization; shmedia_get_operands will change
|
|
as needed. */
|
|
op->reloctype = BFD_RELOC_NONE;
|
|
}
|
|
}
|
|
|
|
/* Parse the operands for this insn; return NULL if invalid, else return
|
|
how much text was consumed. */
|
|
|
|
static char *
|
|
shmedia_get_operands (info, args, operands)
|
|
shmedia_opcode_info *info;
|
|
char *args;
|
|
shmedia_operands_info *operands;
|
|
{
|
|
char *ptr = args;
|
|
int i;
|
|
|
|
if (*ptr == ' ')
|
|
ptr++;
|
|
|
|
for (i = 0; info->arg[i] != 0; i++)
|
|
{
|
|
memset (operands->operands + i, 0, sizeof (operands->operands[0]));
|
|
|
|
/* No operand to get for these fields. */
|
|
if (info->arg[i] == A_REUSE_PREV)
|
|
continue;
|
|
|
|
shmedia_get_operand (&ptr, &operands->operands[i], info->arg[i]);
|
|
|
|
/* Check operands type match. */
|
|
switch (info->arg[i])
|
|
{
|
|
case A_GREG_M:
|
|
case A_GREG_N:
|
|
case A_GREG_D:
|
|
if (operands->operands[i].type != A_GREG_M)
|
|
return NULL;
|
|
break;
|
|
|
|
case A_FREG_G:
|
|
case A_FREG_H:
|
|
case A_FREG_F:
|
|
if (operands->operands[i].type != A_FREG_G)
|
|
return NULL;
|
|
break;
|
|
|
|
case A_FVREG_G:
|
|
case A_FVREG_H:
|
|
case A_FVREG_F:
|
|
if (operands->operands[i].type != A_FVREG_G)
|
|
return NULL;
|
|
break;
|
|
|
|
case A_FMREG_G:
|
|
case A_FMREG_H:
|
|
case A_FMREG_F:
|
|
if (operands->operands[i].type != A_FMREG_G)
|
|
return NULL;
|
|
break;
|
|
|
|
case A_FPREG_G:
|
|
case A_FPREG_H:
|
|
case A_FPREG_F:
|
|
if (operands->operands[i].type != A_FPREG_G)
|
|
return NULL;
|
|
break;
|
|
|
|
case A_DREG_G:
|
|
case A_DREG_H:
|
|
case A_DREG_F:
|
|
if (operands->operands[i].type != A_DREG_G)
|
|
return NULL;
|
|
break;
|
|
|
|
case A_TREG_A:
|
|
case A_TREG_B:
|
|
if (operands->operands[i].type != A_TREG_B)
|
|
return NULL;
|
|
break;
|
|
|
|
case A_CREG_J:
|
|
case A_CREG_K:
|
|
if (operands->operands[i].type != A_CREG_K)
|
|
return NULL;
|
|
break;
|
|
|
|
case A_IMMS16:
|
|
case A_IMMU16:
|
|
/* Check for an expression that looks like S & 65535 or
|
|
(S >> N) & 65535, where N = 0, 16, 32, 48.
|
|
|
|
Get the S and put at operands->operands[i].immediate, and
|
|
adjust operands->operands[i].reloctype. */
|
|
{
|
|
expressionS *imm_expr = &operands->operands[i].immediate;
|
|
expressionS *right_expr;
|
|
|
|
if (operands->operands[i].type == A_IMMM
|
|
&& imm_expr->X_op == O_bit_and
|
|
&& imm_expr->X_op_symbol != NULL
|
|
&& ((right_expr
|
|
= symbol_get_value_expression (imm_expr->X_op_symbol))
|
|
->X_op == O_constant)
|
|
&& right_expr->X_add_number == 0xffff)
|
|
{
|
|
symbolS *inner = imm_expr->X_add_symbol;
|
|
bfd_reloc_code_real_type reloctype = BFD_RELOC_SH_IMM_LOW16;
|
|
expressionS *inner_expr
|
|
= symbol_get_value_expression (inner);
|
|
|
|
if (inner_expr->X_op == O_right_shift)
|
|
{
|
|
expressionS *inner_right;
|
|
|
|
if (inner_expr->X_op_symbol != NULL
|
|
&& ((inner_right
|
|
= symbol_get_value_expression (inner_expr
|
|
->X_op_symbol))
|
|
->X_op == O_constant))
|
|
{
|
|
offsetT addnum
|
|
= inner_right->X_add_number;
|
|
|
|
if (addnum == 0 || addnum == 16 || addnum == 32
|
|
|| addnum == 48)
|
|
{
|
|
reloctype
|
|
= (addnum == 0
|
|
? BFD_RELOC_SH_IMM_LOW16
|
|
: (addnum == 16
|
|
? BFD_RELOC_SH_IMM_MEDLOW16
|
|
: (addnum == 32
|
|
? BFD_RELOC_SH_IMM_MEDHI16
|
|
: BFD_RELOC_SH_IMM_HI16)));
|
|
|
|
inner = inner_expr->X_add_symbol;
|
|
inner_expr = symbol_get_value_expression (inner);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* I'm not sure I understand the logic, but evidently the
|
|
inner expression of a lone symbol is O_constant, with
|
|
the actual symbol in expr_section. For a constant, the
|
|
section would be absolute_section. For sym+offset,
|
|
it's O_symbol as always. See expr.c:make_expr_symbol,
|
|
first statements. */
|
|
|
|
if (inner_expr->X_op == O_constant
|
|
&& S_GET_SEGMENT (inner) != absolute_section)
|
|
{
|
|
operands->operands[i].immediate.X_op = O_symbol;
|
|
operands->operands[i].immediate.X_add_symbol = inner;
|
|
operands->operands[i].immediate.X_add_number = 0;
|
|
}
|
|
else
|
|
operands->operands[i].immediate
|
|
= *symbol_get_value_expression (inner);
|
|
|
|
operands->operands[i].reloctype = reloctype;
|
|
}
|
|
}
|
|
/* Fall through. */
|
|
case A_IMMS6:
|
|
case A_IMMS6BY32:
|
|
case A_IMMS10:
|
|
case A_IMMS10BY1:
|
|
case A_IMMS10BY2:
|
|
case A_IMMS10BY4:
|
|
case A_IMMS10BY8:
|
|
case A_PCIMMS16BY4:
|
|
case A_PCIMMS16BY4_PT:
|
|
case A_IMMU5:
|
|
case A_IMMU6:
|
|
if (operands->operands[i].type != A_IMMM)
|
|
return NULL;
|
|
|
|
if (sh_check_fixup (&operands->operands[i].immediate,
|
|
&operands->operands[i].reloctype))
|
|
{
|
|
as_bad (_("invalid PIC reference"));
|
|
return NULL;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
BAD_CASE (info->arg[i]);
|
|
}
|
|
|
|
if (*ptr == ',' && info->arg[i + 1])
|
|
ptr++;
|
|
}
|
|
return ptr;
|
|
}
|
|
|
|
|
|
/* Find an opcode at the start of *STR_P in the hash table, and set
|
|
*STR_P to the first character after the last one read. */
|
|
|
|
static shmedia_opcode_info *
|
|
shmedia_find_cooked_opcode (str_p)
|
|
char **str_p;
|
|
{
|
|
char *str = *str_p;
|
|
char *op_start;
|
|
char *op_end;
|
|
char name[20];
|
|
unsigned int nlen = 0;
|
|
|
|
/* Drop leading whitespace. */
|
|
while (*str == ' ')
|
|
str++;
|
|
|
|
/* Find the op code end. */
|
|
for (op_start = op_end = str;
|
|
*op_end
|
|
&& nlen < sizeof (name) - 1
|
|
&& ! is_end_of_line[(unsigned char) *op_end]
|
|
&& ! ISSPACE ((unsigned char) *op_end);
|
|
op_end++)
|
|
{
|
|
unsigned char c = op_start[nlen];
|
|
|
|
/* The machine independent code will convert CMP/EQ into cmp/EQ
|
|
because it thinks the '/' is the end of the symbol. Moreover,
|
|
all but the first sub-insn is a parallel processing insn won't
|
|
be capitailzed. Instead of hacking up the machine independent
|
|
code, we just deal with it here. */
|
|
c = TOLOWER (c);
|
|
name[nlen] = c;
|
|
nlen++;
|
|
}
|
|
|
|
name[nlen] = 0;
|
|
*str_p = op_end;
|
|
|
|
if (nlen == 0)
|
|
as_bad (_("can't find opcode"));
|
|
|
|
return
|
|
(shmedia_opcode_info *) hash_find (shmedia_opcode_hash_control, name);
|
|
}
|
|
|
|
/* Build up an instruction, including allocating the frag. */
|
|
|
|
static int
|
|
shmedia_build_Mytes (opcode, operands)
|
|
shmedia_opcode_info *opcode;
|
|
shmedia_operands_info *operands;
|
|
{
|
|
unsigned long insn = opcode->opcode_base;
|
|
int i, j;
|
|
char *insn_loc = frag_more (4);
|
|
|
|
/* The parameter to dwarf2_emit_insn is actually the offset to the start
|
|
of the insn from the fix piece of instruction that was emitted.
|
|
Since we want .debug_line addresses to record (address | 1) for
|
|
SHmedia insns, we get the wanted effect by taking one off the size,
|
|
knowing it's a multiple of 4. We count from the first fix piece of
|
|
the insn. There must be no frags changes (frag_more or frag_var)
|
|
calls in-between the frag_more call we account for, and this
|
|
dwarf2_emit_insn call. */
|
|
dwarf2_emit_insn (3);
|
|
|
|
/* This is stored into any frag_var operand. */
|
|
sh64_last_insn_frag = frag_now;
|
|
|
|
/* Loop over opcode info, emit an instruction. */
|
|
for (i = 0, j = 0; opcode->arg[i]; i++)
|
|
{
|
|
shmedia_arg_type argtype = opcode->arg[i];
|
|
shmedia_operand_info *opjp = &operands->operands[j];
|
|
switch (argtype)
|
|
{
|
|
case A_TREG_A:
|
|
case A_TREG_B:
|
|
case A_GREG_M:
|
|
case A_GREG_N:
|
|
case A_GREG_D:
|
|
case A_FREG_G:
|
|
case A_FREG_H:
|
|
case A_FREG_F:
|
|
case A_FVREG_G:
|
|
case A_FVREG_H:
|
|
case A_FVREG_F:
|
|
case A_FMREG_G:
|
|
case A_FMREG_H:
|
|
case A_FMREG_F:
|
|
case A_FPREG_G:
|
|
case A_FPREG_H:
|
|
case A_FPREG_F:
|
|
case A_DREG_G:
|
|
case A_DREG_H:
|
|
case A_DREG_F:
|
|
case A_CREG_J:
|
|
case A_CREG_K:
|
|
/* Six-bit register fields. They just get filled with the
|
|
parsed register number. */
|
|
insn |= (opjp->reg << opcode->nibbles[i]);
|
|
j++;
|
|
break;
|
|
|
|
case A_REUSE_PREV:
|
|
/* Copy the register for the previous operand to this position. */
|
|
insn |= (operands->operands[j - 1].reg << opcode->nibbles[i]);
|
|
j++;
|
|
break;
|
|
|
|
case A_IMMS6:
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_IMMS6);
|
|
j++;
|
|
break;
|
|
|
|
case A_IMMS6BY32:
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_IMMS6BY32);
|
|
j++;
|
|
break;
|
|
|
|
case A_IMMS10BY1:
|
|
case A_IMMS10:
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_IMMS10);
|
|
j++;
|
|
break;
|
|
|
|
case A_IMMS10BY2:
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_IMMS10BY2);
|
|
j++;
|
|
break;
|
|
|
|
case A_IMMS10BY4:
|
|
if (opjp->reloctype == BFD_RELOC_NONE)
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_IMMS10BY4);
|
|
else if (opjp->reloctype == BFD_RELOC_SH_GOTPLT32)
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_GOTPLT10BY4);
|
|
else if (opjp->reloctype == BFD_RELOC_32_GOT_PCREL)
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_GOT10BY4);
|
|
else
|
|
as_bad (_("invalid PIC reference"));
|
|
j++;
|
|
break;
|
|
|
|
case A_IMMS10BY8:
|
|
if (opjp->reloctype == BFD_RELOC_NONE)
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_IMMS10BY8);
|
|
else if (opjp->reloctype == BFD_RELOC_SH_GOTPLT32)
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_GOTPLT10BY8);
|
|
else if (opjp->reloctype == BFD_RELOC_32_GOT_PCREL)
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_GOT10BY8);
|
|
else
|
|
as_bad (_("invalid PIC reference"));
|
|
j++;
|
|
break;
|
|
|
|
case A_IMMS16:
|
|
/* Sneak a peek if this is the MOVI insn. If so, check if we
|
|
should expand it. */
|
|
if (opjp->reloctype == BFD_RELOC_32_GOT_PCREL)
|
|
opjp->reloctype = BFD_RELOC_SH_GOT_LOW16;
|
|
else if (opjp->reloctype == BFD_RELOC_SH_GOTPLT32)
|
|
opjp->reloctype = BFD_RELOC_SH_GOTPLT_LOW16;
|
|
|
|
if ((opjp->reloctype == BFD_RELOC_NONE
|
|
|| opjp->reloctype == BFD_RELOC_32_GOTOFF
|
|
|| opjp->reloctype == BFD_RELOC_32_PLT_PCREL
|
|
|| opjp->reloctype == BFD_RELOC_SH_GOTPC)
|
|
&& opcode->opcode_base == SHMEDIA_MOVI_OPC
|
|
&& (opjp->immediate.X_op != O_constant
|
|
|| opjp->immediate.X_add_number < -32768
|
|
|| opjp->immediate.X_add_number > 32767)
|
|
&& (sh64_expand
|
|
|| opjp->reloctype == BFD_RELOC_32_GOTOFF
|
|
|| opjp->reloctype == BFD_RELOC_32_PLT_PCREL
|
|
|| opjp->reloctype == BFD_RELOC_SH_GOTPC))
|
|
{
|
|
int what = sh64_abi == sh64_abi_64 ? MOVI_IMM_64 : MOVI_IMM_32;
|
|
offsetT max = sh64_abi == sh64_abi_64 ? MOVI_64 : MOVI_32;
|
|
offsetT min = MOVI_16;
|
|
offsetT init = UNDEF_MOVI;
|
|
valueT addvalue
|
|
= opjp->immediate.X_op_symbol != NULL
|
|
? 0 : opjp->immediate.X_add_number;
|
|
symbolS *sym
|
|
= opjp->immediate.X_op_symbol != NULL
|
|
? make_expr_symbol (&opjp->immediate)
|
|
: opjp->immediate.X_add_symbol;
|
|
|
|
if (opjp->reloctype == BFD_RELOC_32_GOTOFF)
|
|
init = max = min = MOVI_GOTOFF;
|
|
else if (opjp->reloctype == BFD_RELOC_32_PLT_PCREL)
|
|
{
|
|
init = max = min = MOVI_PLT;
|
|
what = (sh64_abi == sh64_abi_64
|
|
? MOVI_IMM_64_PCREL
|
|
: MOVI_IMM_32_PCREL);
|
|
}
|
|
else if (opjp->reloctype == BFD_RELOC_SH_GOTPC)
|
|
{
|
|
init = max = min = MOVI_GOTPC;
|
|
what = (sh64_abi == sh64_abi_64
|
|
? MOVI_IMM_64_PCREL
|
|
: MOVI_IMM_32_PCREL);
|
|
}
|
|
|
|
frag_var (rs_machine_dependent,
|
|
md_relax_table[C (what, max)].rlx_length,
|
|
md_relax_table[C (what, min)].rlx_length,
|
|
C (what, init), sym, addvalue, insn_loc);
|
|
}
|
|
else
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
(opjp->reloctype
|
|
== BFD_RELOC_NONE)
|
|
? BFD_RELOC_SH_IMMS16
|
|
: opjp->reloctype);
|
|
j++;
|
|
break;
|
|
|
|
case A_PCIMMS16BY4:
|
|
{
|
|
int what
|
|
= ((sh64_abi == sh64_abi_64 && ! sh64_pt32)
|
|
? SH64PCREL16_64 : SH64PCREL16_32);
|
|
offsetT max
|
|
= ((sh64_abi == sh64_abi_64 && ! sh64_pt32)
|
|
? SH64PCREL64 : SH64PCREL32);
|
|
offsetT min = SH64PCREL16;
|
|
offsetT init = UNDEF_SH64PCREL;
|
|
|
|
/* Don't allow complex expressions here. */
|
|
if (opjp->immediate.X_op_symbol != NULL)
|
|
return 0;
|
|
|
|
if (opjp->reloctype == BFD_RELOC_32_PLT_PCREL)
|
|
init = max = min = SH64PCRELPLT;
|
|
|
|
/* If we're not expanding, then just emit a fixup. */
|
|
if (sh64_expand || opjp->reloctype != BFD_RELOC_NONE)
|
|
frag_var (rs_machine_dependent,
|
|
md_relax_table[C (what, max)].rlx_length,
|
|
md_relax_table[C (what, min)].rlx_length,
|
|
C (what, init),
|
|
opjp->immediate.X_add_symbol,
|
|
opjp->immediate.X_add_number,
|
|
insn_loc);
|
|
else
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 1,
|
|
opjp->reloctype == BFD_RELOC_NONE
|
|
? BFD_RELOC_SH_PT_16
|
|
: opjp->reloctype);
|
|
|
|
j++;
|
|
break;
|
|
}
|
|
|
|
case A_PCIMMS16BY4_PT:
|
|
{
|
|
int what
|
|
= ((sh64_abi == sh64_abi_64 && ! sh64_pt32)
|
|
? SH64PCREL16PT_64 : SH64PCREL16PT_32);
|
|
offsetT max
|
|
= ((sh64_abi == sh64_abi_64 && ! sh64_pt32)
|
|
? SH64PCREL64 : SH64PCREL32);
|
|
offsetT min = SH64PCREL16;
|
|
offsetT init = UNDEF_SH64PCREL;
|
|
|
|
/* Don't allow complex expressions here. */
|
|
if (opjp->immediate.X_op_symbol != NULL)
|
|
return 0;
|
|
|
|
if (opjp->reloctype == BFD_RELOC_32_PLT_PCREL)
|
|
init = max = min = SH64PCRELPLT;
|
|
|
|
/* If we're not expanding, then just emit a fixup. */
|
|
if (sh64_expand || opjp->reloctype != BFD_RELOC_NONE)
|
|
frag_var (rs_machine_dependent,
|
|
md_relax_table[C (what, max)].rlx_length,
|
|
md_relax_table[C (what, min)].rlx_length,
|
|
C (what, init),
|
|
opjp->immediate.X_add_symbol,
|
|
opjp->immediate.X_add_number,
|
|
insn_loc);
|
|
else
|
|
/* This reloc-type is just temporary, so we can distinguish
|
|
PTA from PT. It is changed in shmedia_md_apply_fix3 to
|
|
BFD_RELOC_SH_PT_16. */
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 1,
|
|
opjp->reloctype == BFD_RELOC_NONE
|
|
? SHMEDIA_BFD_RELOC_PT
|
|
: opjp->reloctype);
|
|
|
|
j++;
|
|
break;
|
|
}
|
|
|
|
case A_IMMU5:
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_IMMU5);
|
|
j++;
|
|
break;
|
|
|
|
case A_IMMU6:
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
BFD_RELOC_SH_IMMU6);
|
|
j++;
|
|
break;
|
|
|
|
case A_IMMU16:
|
|
insn |= shmedia_immediate_op (insn_loc, opjp, 0,
|
|
(opjp->reloctype
|
|
== BFD_RELOC_NONE)
|
|
? BFD_RELOC_SH_IMMU16
|
|
: opjp->reloctype);
|
|
j++;
|
|
break;
|
|
|
|
default:
|
|
BAD_CASE (argtype);
|
|
}
|
|
}
|
|
|
|
md_number_to_chars (insn_loc, insn, 4);
|
|
return 4;
|
|
}
|
|
|
|
/* Assemble a SHmedia instruction. */
|
|
|
|
static void
|
|
shmedia_md_assemble (str)
|
|
char *str;
|
|
{
|
|
char *op_end;
|
|
shmedia_opcode_info *opcode;
|
|
shmedia_operands_info operands;
|
|
int size;
|
|
|
|
opcode = shmedia_find_cooked_opcode (&str);
|
|
op_end = str;
|
|
|
|
if (opcode == NULL)
|
|
{
|
|
as_bad (_("unknown opcode"));
|
|
return;
|
|
}
|
|
|
|
/* Start a SHmedia code region, if there has been pseudoinsns or similar
|
|
seen since the last one. */
|
|
if (!seen_insn)
|
|
{
|
|
sh64_update_contents_mark (TRUE);
|
|
sh64_set_contents_type (CRT_SH5_ISA32);
|
|
seen_insn = TRUE;
|
|
}
|
|
|
|
op_end = shmedia_get_operands (opcode, op_end, &operands);
|
|
|
|
if (op_end == NULL)
|
|
{
|
|
as_bad (_("invalid operands to %s"), opcode->name);
|
|
return;
|
|
}
|
|
|
|
if (*op_end)
|
|
{
|
|
as_bad (_("excess operands to %s"), opcode->name);
|
|
return;
|
|
}
|
|
|
|
size = shmedia_build_Mytes (opcode, &operands);
|
|
if (size == 0)
|
|
return;
|
|
}
|
|
|
|
/* Hook called from md_begin in tc-sh.c. */
|
|
|
|
void
|
|
shmedia_md_begin ()
|
|
{
|
|
const shmedia_opcode_info *shmedia_opcode;
|
|
shmedia_opcode_hash_control = hash_new ();
|
|
|
|
/* Create opcode table for SHmedia mnemonics. */
|
|
for (shmedia_opcode = shmedia_table;
|
|
shmedia_opcode->name;
|
|
shmedia_opcode++)
|
|
hash_insert (shmedia_opcode_hash_control, shmedia_opcode->name,
|
|
(char *) shmedia_opcode);
|
|
}
|
|
|
|
/* Switch instruction set. Only valid if one of the --isa or --abi
|
|
options was specified. */
|
|
|
|
static void
|
|
s_sh64_mode (ignore)
|
|
int ignore ATTRIBUTE_UNUSED;
|
|
{
|
|
char *name = input_line_pointer, ch;
|
|
|
|
/* Make sure data up to this location is handled according to the
|
|
previous ISA. */
|
|
sh64_update_contents_mark (TRUE);
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer])
|
|
input_line_pointer++;
|
|
ch = *input_line_pointer;
|
|
*input_line_pointer = '\0';
|
|
|
|
/* If the mode was not set before, explicitly or implicitly, then we're
|
|
not emitting SH64 code, so this pseudo is invalid. */
|
|
if (sh64_isa_mode == sh64_isa_unspecified)
|
|
as_bad (_("The `.mode %s' directive is not valid with this architecture"),
|
|
name);
|
|
|
|
if (strcasecmp (name, "shcompact") == 0)
|
|
sh64_isa_mode = sh64_isa_shcompact;
|
|
else if (strcasecmp (name, "shmedia") == 0)
|
|
sh64_isa_mode = sh64_isa_shmedia;
|
|
else
|
|
as_bad (_("Invalid argument to .mode: %s"), name);
|
|
|
|
/* Make a new frag, marking it with the supposedly-changed ISA. */
|
|
frag_wane (frag_now);
|
|
frag_new (0);
|
|
|
|
/* Contents type up to this new point is the same as before; don't add a
|
|
data region just because the new frag we created. */
|
|
sh64_update_contents_mark (FALSE);
|
|
|
|
*input_line_pointer = ch;
|
|
demand_empty_rest_of_line ();
|
|
}
|
|
|
|
/* Check that the right ABI is used. Only valid if one of the --isa or
|
|
--abi options was specified. */
|
|
|
|
static void
|
|
s_sh64_abi (ignore)
|
|
int ignore ATTRIBUTE_UNUSED;
|
|
{
|
|
char *name = input_line_pointer, ch;
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer])
|
|
input_line_pointer++;
|
|
ch = *input_line_pointer;
|
|
*input_line_pointer = '\0';
|
|
|
|
/* If the mode was not set before, explicitly or implicitly, then we're
|
|
not emitting SH64 code, so this pseudo is invalid. */
|
|
if (sh64_abi == sh64_abi_unspecified)
|
|
as_bad (_("The `.abi %s' directive is not valid with this architecture"),
|
|
name);
|
|
|
|
if (strcmp (name, "64") == 0)
|
|
{
|
|
if (sh64_abi != sh64_abi_64)
|
|
as_bad (_("`.abi 64' but command-line options do not specify 64-bit ABI"));
|
|
}
|
|
else if (strcmp (name, "32") == 0)
|
|
{
|
|
if (sh64_abi != sh64_abi_32)
|
|
as_bad (_("`.abi 32' but command-line options do not specify 32-bit ABI"));
|
|
}
|
|
else
|
|
as_bad (_("Invalid argument to .abi: %s"), name);
|
|
|
|
*input_line_pointer = ch;
|
|
demand_empty_rest_of_line ();
|
|
}
|
|
|
|
/* This function is the first target-specific function called after
|
|
parsing command-line options. Therefore we set default values from
|
|
command-line options here and do some sanity checking we couldn't do
|
|
when options were being parsed. */
|
|
|
|
const char *
|
|
sh64_target_format ()
|
|
{
|
|
#ifdef TE_NetBSD
|
|
/* For NetBSD, if the ISA is unspecified, always use SHmedia. */
|
|
if (sh64_isa_mode == sh64_isa_unspecified)
|
|
sh64_isa_mode = sh64_isa_shmedia;
|
|
|
|
/* If the ABI is unspecified, select a default: based on how
|
|
we were configured: sh64 == sh64_abi_64, else sh64_abi_32. */
|
|
if (sh64_abi == sh64_abi_unspecified)
|
|
{
|
|
if (sh64_isa_mode == sh64_isa_shcompact)
|
|
sh64_abi = sh64_abi_32;
|
|
else if (strncmp (TARGET_CPU, "sh64", 4) == 0)
|
|
sh64_abi = sh64_abi_64;
|
|
else
|
|
sh64_abi = sh64_abi_32;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TE_LINUX
|
|
if (sh64_isa_mode == sh64_isa_unspecified)
|
|
sh64_isa_mode = sh64_isa_shmedia;
|
|
|
|
if (sh64_abi == sh64_abi_unspecified)
|
|
sh64_abi = sh64_abi_32;
|
|
#endif
|
|
|
|
if (sh64_abi == sh64_abi_64 && sh64_isa_mode == sh64_isa_unspecified)
|
|
sh64_isa_mode = sh64_isa_shmedia;
|
|
|
|
if (sh64_abi == sh64_abi_32 && sh64_isa_mode == sh64_isa_unspecified)
|
|
sh64_isa_mode = sh64_isa_shcompact;
|
|
|
|
if (sh64_isa_mode == sh64_isa_shcompact
|
|
&& sh64_abi == sh64_abi_unspecified)
|
|
sh64_abi = sh64_abi_32;
|
|
|
|
if (sh64_isa_mode == sh64_isa_shmedia
|
|
&& sh64_abi == sh64_abi_unspecified)
|
|
sh64_abi = sh64_abi_64;
|
|
|
|
if (sh64_isa_mode == sh64_isa_unspecified && ! sh64_mix)
|
|
as_bad (_("-no-mix is invalid without specifying SHcompact or SHmedia"));
|
|
|
|
if ((sh64_isa_mode == sh64_isa_unspecified
|
|
|| sh64_isa_mode == sh64_isa_shmedia)
|
|
&& sh64_shcompact_const_crange)
|
|
as_bad (_("-shcompact-const-crange is invalid without SHcompact"));
|
|
|
|
if (sh64_pt32 && sh64_abi != sh64_abi_64)
|
|
as_bad (_("-expand-pt32 only valid with -abi=64"));
|
|
|
|
if (! sh64_expand && sh64_isa_mode == sh64_isa_unspecified)
|
|
as_bad (_("-no-expand only valid with SHcompact or SHmedia"));
|
|
|
|
if (sh64_pt32 && ! sh64_expand)
|
|
as_bad (_("-expand-pt32 invalid together with -no-expand"));
|
|
|
|
#ifdef TE_NetBSD
|
|
if (sh64_abi == sh64_abi_64)
|
|
return (target_big_endian ? "elf64-sh64-nbsd" : "elf64-sh64l-nbsd");
|
|
else
|
|
return (target_big_endian ? "elf32-sh64-nbsd" : "elf32-sh64l-nbsd");
|
|
#elif defined (TE_LINUX)
|
|
if (sh64_abi == sh64_abi_64)
|
|
return (target_big_endian ? "elf64-sh64big-linux" : "elf64-sh64-linux");
|
|
else
|
|
return (target_big_endian ? "elf32-sh64big-linux" : "elf32-sh64-linux");
|
|
#else
|
|
/* When the ISA is not one of SHmedia or SHcompact, use the old SH
|
|
object format. */
|
|
if (sh64_isa_mode == sh64_isa_unspecified)
|
|
return (target_big_endian ? "elf32-sh" : "elf32-shl");
|
|
else if (sh64_abi == sh64_abi_64)
|
|
return (target_big_endian ? "elf64-sh64" : "elf64-sh64l");
|
|
else
|
|
return (target_big_endian ? "elf32-sh64" : "elf32-sh64l");
|
|
#endif
|
|
}
|
|
|
|
/* The worker function of TARGET_MACH. */
|
|
|
|
int
|
|
sh64_target_mach ()
|
|
{
|
|
/* We need to explicitly set bfd_mach_sh5 instead of the default 0. But
|
|
we only do this for the 64-bit ABI: if we do it for the 32-bit ABI,
|
|
the SH5 info in the bfd_arch_info structure will be selected.
|
|
However correct, as the machine has 64-bit addresses, functions
|
|
expected to emit 32-bit data for addresses will start failing. For
|
|
example, the dwarf2dbg.c functions will emit 64-bit debugging format,
|
|
and we don't want that in the 32-bit ABI.
|
|
|
|
We could have two bfd_arch_info structures for SH64; one for the
|
|
32-bit ABI and one for the rest (64-bit ABI). But that would be a
|
|
bigger kludge: it's a flaw in the BFD design, and we need to just
|
|
work around it by having the default machine set here in the
|
|
assembler. For everything else but the assembler, the various bfd
|
|
functions will set the machine type right to bfd_mach_sh5 from object
|
|
file header flags regardless of the 0 here. */
|
|
|
|
return (sh64_abi == sh64_abi_64) ? bfd_mach_sh5 : 0;
|
|
}
|
|
|
|
/* This is MD_PCREL_FROM_SECTION, we we define so it is called instead of
|
|
md_pcrel_from (in tc-sh.c). */
|
|
|
|
valueT
|
|
shmedia_md_pcrel_from_section (fixP, sec)
|
|
struct fix *fixP;
|
|
segT sec ATTRIBUTE_UNUSED;
|
|
{
|
|
know (fixP->fx_frag->fr_type == rs_machine_dependent);
|
|
|
|
/* Use the ISA for the instruction to decide which offset to use. We
|
|
can glean it from the fisup type. */
|
|
switch (fixP->fx_r_type)
|
|
{
|
|
case BFD_RELOC_SH_IMM_LOW16:
|
|
case BFD_RELOC_SH_IMM_MEDLOW16:
|
|
case BFD_RELOC_SH_IMM_MEDHI16:
|
|
case BFD_RELOC_SH_IMM_HI16:
|
|
case BFD_RELOC_SH_IMM_LOW16_PCREL:
|
|
case BFD_RELOC_SH_IMM_MEDLOW16_PCREL:
|
|
case BFD_RELOC_SH_IMM_MEDHI16_PCREL:
|
|
case BFD_RELOC_SH_IMM_HI16_PCREL:
|
|
case BFD_RELOC_SH_IMMU5:
|
|
case BFD_RELOC_SH_IMMU6:
|
|
case BFD_RELOC_SH_IMMS6:
|
|
case BFD_RELOC_SH_IMMS10:
|
|
case BFD_RELOC_SH_IMMS10BY2:
|
|
case BFD_RELOC_SH_IMMS10BY4:
|
|
case BFD_RELOC_SH_IMMS10BY8:
|
|
case BFD_RELOC_SH_IMMS16:
|
|
case BFD_RELOC_SH_IMMU16:
|
|
case BFD_RELOC_SH_PT_16:
|
|
case SHMEDIA_BFD_RELOC_PT:
|
|
/* PC-relative relocs are relative to the address of the last generated
|
|
instruction, i.e. fx_size - 4. */
|
|
return SHMEDIA_MD_PCREL_FROM_FIX (fixP);
|
|
|
|
case BFD_RELOC_64:
|
|
case BFD_RELOC_64_PCREL:
|
|
know (0 /* Shouldn't get here. */);
|
|
break;
|
|
|
|
default:
|
|
/* If section was SHcompact, use its function. */
|
|
return (valueT) md_pcrel_from_section (fixP, sec);
|
|
}
|
|
|
|
know (0 /* Shouldn't get here. */);
|
|
return 0;
|
|
}
|
|
|
|
/* Create one .cranges descriptor from two symbols, STARTSYM marking begin
|
|
and ENDSYM marking end, and CR_TYPE specifying the type. */
|
|
|
|
static void
|
|
sh64_emit_crange (startsym, endsym, cr_type)
|
|
symbolS *startsym;
|
|
symbolS *endsym;
|
|
enum sh64_elf_cr_type cr_type;
|
|
{
|
|
expressionS exp;
|
|
segT current_seg = now_seg;
|
|
subsegT current_subseg = now_subseg;
|
|
|
|
asection *cranges
|
|
= bfd_make_section_old_way (stdoutput,
|
|
SH64_CRANGES_SECTION_NAME);
|
|
|
|
/* Temporarily change to the .cranges section. */
|
|
subseg_set (cranges, 0);
|
|
|
|
/* Emit the cr_addr part. */
|
|
exp.X_op = O_symbol;
|
|
exp.X_add_number = 0;
|
|
exp.X_op_symbol = NULL;
|
|
exp.X_add_symbol = startsym;
|
|
emit_expr (&exp, 4);
|
|
|
|
/* Emit the cr_size part. */
|
|
exp.X_op = O_subtract;
|
|
exp.X_add_number = 0;
|
|
exp.X_add_symbol = endsym;
|
|
exp.X_op_symbol = startsym;
|
|
emit_expr (&exp, 4);
|
|
|
|
/* Emit the cr_size part. */
|
|
exp.X_op = O_constant;
|
|
exp.X_add_number = cr_type;
|
|
exp.X_add_symbol = NULL;
|
|
exp.X_op_symbol = NULL;
|
|
emit_expr (&exp, 2);
|
|
|
|
/* Now back to our regular program. */
|
|
subseg_set (current_seg, current_subseg);
|
|
}
|
|
|
|
/* Called when the assembler is about to emit contents of some type into
|
|
SEG, so it is *known* that the type of that new contents is in
|
|
NEW_CONTENTS_TYPE. If just switching back and forth between different
|
|
contents types (for example, with consecutive .mode pseudos), then this
|
|
function isn't called. */
|
|
|
|
static void
|
|
sh64_set_contents_type (new_contents_type)
|
|
enum sh64_elf_cr_type new_contents_type;
|
|
{
|
|
segment_info_type *seginfo;
|
|
|
|
/* We will not be called when emitting .cranges output, since callers
|
|
stop that. Validize that assumption. */
|
|
know (!emitting_crange);
|
|
|
|
seginfo = seg_info (now_seg);
|
|
|
|
if (seginfo)
|
|
{
|
|
symbolS *symp = seginfo->tc_segment_info_data.last_contents_mark;
|
|
|
|
enum sh64_elf_cr_type contents_type
|
|
= seginfo->tc_segment_info_data.contents_type;
|
|
|
|
/* If it was just SHcompact switching between code and constant
|
|
pool, don't change contents type. Just make sure we don't set
|
|
the contents type to data, as that would join with a data-region
|
|
in SHmedia mode. */
|
|
if (sh64_isa_mode == sh64_isa_shcompact
|
|
&& ! sh64_shcompact_const_crange)
|
|
new_contents_type = CRT_SH5_ISA16;
|
|
|
|
/* If nothing changed, stop here. */
|
|
if (contents_type == new_contents_type)
|
|
return;
|
|
|
|
/* If we're in 64-bit ABI mode, we do not emit .cranges, as it is
|
|
only specified for 32-bit addresses. It could presumably be
|
|
extended, but in 64-bit ABI mode we don't have SHcompact code, so
|
|
we would only use it to mark code and data. */
|
|
if (sh64_abi == sh64_abi_64)
|
|
{
|
|
/* Make the code type "sticky". We don't want to set the
|
|
sections contents type to data if there's any code in it as
|
|
we don't have .cranges in 64-bit mode to notice the
|
|
difference. */
|
|
seginfo->tc_segment_info_data.contents_type
|
|
= (new_contents_type == CRT_SH5_ISA32
|
|
|| contents_type == CRT_SH5_ISA32)
|
|
? CRT_SH5_ISA32 : new_contents_type;
|
|
return;
|
|
}
|
|
|
|
/* If none was marked, create a start symbol for this range and
|
|
perhaps as a closing symbol for the old one. */
|
|
if (symp == NULL)
|
|
symp = symbol_new (FAKE_LABEL_NAME, now_seg, (valueT) frag_now_fix (),
|
|
frag_now);
|
|
|
|
/* We will use this symbol, so don't leave a pointer behind. */
|
|
seginfo->tc_segment_info_data.last_contents_mark = NULL;
|
|
|
|
/* We'll be making only datalabel references to it, if we emit a
|
|
.cranges descriptor, so remove any code flag. */
|
|
S_SET_OTHER (symp, S_GET_OTHER (symp) & ~STO_SH5_ISA32);
|
|
|
|
/* If we have already marked the start of a range, we need to close
|
|
and emit it before marking a new one, so emit a new .cranges
|
|
descriptor into the .cranges section. */
|
|
if (seginfo->tc_segment_info_data.mode_start_symbol)
|
|
{
|
|
/* If we're not supposed to emit mixed-mode sections, make it an
|
|
error, but continue processing. */
|
|
if (! sh64_mix
|
|
&& (new_contents_type == CRT_SH5_ISA32
|
|
|| contents_type == CRT_SH5_ISA32))
|
|
as_bad (
|
|
_("SHmedia code not allowed in same section as constants and SHcompact code"));
|
|
|
|
emitting_crange = TRUE;
|
|
sh64_emit_crange (seginfo->tc_segment_info_data.mode_start_symbol,
|
|
symp, contents_type);
|
|
emitting_crange = FALSE;
|
|
seginfo->tc_segment_info_data.emitted_ranges++;
|
|
}
|
|
|
|
seginfo->tc_segment_info_data.mode_start_symbol = symp;
|
|
seginfo->tc_segment_info_data.mode_start_subseg = now_subseg;
|
|
seginfo->tc_segment_info_data.contents_type = new_contents_type;
|
|
|
|
/* Always reset this, so the SHcompact code will emit a reloc when
|
|
it prepares to relax. */
|
|
seginfo->tc_segment_info_data.in_code = 0;
|
|
}
|
|
else
|
|
as_bad (_("No segment info for current section"));
|
|
}
|
|
|
|
/* Hook when defining symbols and labels. We set the ST_OTHER field if
|
|
the symbol is "shmedia" (with "bitor 1" automatically applied). Simple
|
|
semantics for a label being "shmedia" : It was defined when .mode
|
|
SHmedia was in effect, and it was defined in a code section. It
|
|
doesn't matter whether or not an assembled opcode is nearby. */
|
|
|
|
void
|
|
sh64_frob_label (symp)
|
|
symbolS *symp;
|
|
{
|
|
segT seg = S_GET_SEGMENT (symp);
|
|
static const symbolS *null = NULL;
|
|
|
|
/* Reset the tc marker for all newly created symbols. */
|
|
symbol_set_tc (symp, (symbolS **) &null);
|
|
|
|
if (seg != NULL && sh64_isa_mode == sh64_isa_shmedia && subseg_text_p (seg))
|
|
S_SET_OTHER (symp, S_GET_OTHER (symp) | STO_SH5_ISA32);
|
|
}
|
|
|
|
/* Handle the "datalabel" qualifier. We need to call "operand", but it's
|
|
static, so a function pointer is passed here instead. FIXME: A target
|
|
hook for qualifiers is needed; we currently use the md_parse_name
|
|
symbol hook. */
|
|
|
|
int
|
|
sh64_consume_datalabel (name, exp, cp, operandf)
|
|
const char *name;
|
|
expressionS *exp;
|
|
char *cp;
|
|
segT (*operandf) PARAMS ((expressionS *));
|
|
{
|
|
static int parsing_datalabel = 0;
|
|
|
|
if (strcasecmp (name, "datalabel") == 0)
|
|
{
|
|
int save_parsing_datalabel = parsing_datalabel;
|
|
|
|
if (parsing_datalabel)
|
|
as_bad (_("duplicate datalabel operator ignored"));
|
|
|
|
*input_line_pointer = *cp;
|
|
parsing_datalabel = 1;
|
|
(*operandf) (exp);
|
|
parsing_datalabel = save_parsing_datalabel;
|
|
|
|
if (exp->X_op == O_symbol || exp->X_op == O_PIC_reloc)
|
|
{
|
|
symbolS *symp = exp->X_add_symbol;
|
|
segT symseg = S_GET_SEGMENT (symp);
|
|
|
|
/* If the symbol is defined to something that is already a
|
|
datalabel, we don't need to bother with any special handling. */
|
|
if (symseg != undefined_section
|
|
&& S_GET_OTHER (symp) != STO_SH5_ISA32)
|
|
/* Do nothing. */
|
|
;
|
|
else
|
|
{
|
|
symbolS *dl_symp;
|
|
const char *name = S_GET_NAME (symp);
|
|
char *dl_name
|
|
= xmalloc (strlen (name) + sizeof (DATALABEL_SUFFIX));
|
|
|
|
/* Now we copy the datalabel-qualified symbol into a symbol
|
|
with the same name, but with " DL" appended. We mark the
|
|
symbol using the TC_SYMFIELD_TYPE field with a pointer to
|
|
the main symbol, so we don't have to inspect all symbol
|
|
names. Note that use of "datalabel" is not expected to
|
|
be a common case. */
|
|
strcpy (dl_name, name);
|
|
strcat (dl_name, DATALABEL_SUFFIX);
|
|
|
|
/* A FAKE_LABEL_NAME marks "$" or ".". There can be any
|
|
number of them and all have the same (faked) name; we
|
|
must make a new one each time. */
|
|
if (strcmp (name, FAKE_LABEL_NAME) == 0)
|
|
dl_symp = symbol_make (dl_name);
|
|
else
|
|
dl_symp = symbol_find_or_make (dl_name);
|
|
|
|
free (dl_name);
|
|
symbol_set_value_expression (dl_symp,
|
|
symbol_get_value_expression (symp));
|
|
S_SET_SEGMENT (dl_symp, symseg);
|
|
symbol_set_frag (dl_symp, symbol_get_frag (symp));
|
|
symbol_set_tc (dl_symp, &symp);
|
|
copy_symbol_attributes (dl_symp, symp);
|
|
exp->X_add_symbol = dl_symp;
|
|
|
|
/* Unset the BranchTarget mark that can be set at symbol
|
|
creation or attributes copying. */
|
|
S_SET_OTHER (dl_symp, S_GET_OTHER (dl_symp) & ~STO_SH5_ISA32);
|
|
|
|
/* The GLOBAL and WEAK attributes are not copied over by
|
|
copy_symbol_attributes. Do it here. */
|
|
if (S_IS_WEAK (symp))
|
|
S_SET_WEAK (dl_symp);
|
|
else if (S_IS_EXTERNAL (symp))
|
|
S_SET_EXTERNAL (dl_symp);
|
|
}
|
|
}
|
|
/* Complain about other types of operands than symbol, unless they
|
|
have already been complained about. A constant is always a
|
|
datalabel. Removing the low bit would therefore be wrong.
|
|
Complaining about it would also be wrong. */
|
|
else if (exp->X_op != O_illegal
|
|
&& exp->X_op != O_absent
|
|
&& exp->X_op != O_constant)
|
|
as_bad (_("Invalid DataLabel expression"));
|
|
|
|
*cp = *input_line_pointer;
|
|
|
|
return 1;
|
|
}
|
|
|
|
return sh_parse_name (name, exp, cp);
|
|
}
|
|
|
|
/* This function is called just before symbols are being output. It
|
|
returns zero when a symbol must be output, non-zero otherwise.
|
|
Datalabel references that were fully resolved to local symbols are not
|
|
necessary to output. We also do not want to output undefined symbols
|
|
that are not used in relocs. For symbols that are used in a reloc, it
|
|
does not matter what we set here. If it is *not* used in a reloc, then
|
|
it was probably the datalabel counterpart that was used in a reloc;
|
|
then we need not output the main symbol. */
|
|
|
|
int
|
|
sh64_exclude_symbol (symp)
|
|
symbolS *symp;
|
|
{
|
|
symbolS *main_symbol = *symbol_get_tc (symp);
|
|
|
|
return main_symbol != NULL || ! S_IS_DEFINED (symp);
|
|
}
|
|
|
|
/* If we haven't seen an insn since the last update, and location
|
|
indicators have moved (a new frag, new location within frag) we have
|
|
emitted data, so change contents type to data. Forget that we have
|
|
seen a sequence of insns and store the current location so we can mark
|
|
a new region if needed. */
|
|
|
|
static void
|
|
sh64_update_contents_mark (update_type)
|
|
bfd_boolean update_type;
|
|
{
|
|
segment_info_type *seginfo;
|
|
seginfo = seg_info (now_seg);
|
|
|
|
if (seginfo != NULL)
|
|
{
|
|
symbolS *symp = seginfo->tc_segment_info_data.last_contents_mark;
|
|
|
|
if (symp == NULL)
|
|
{
|
|
symp = symbol_new (FAKE_LABEL_NAME, now_seg,
|
|
(valueT) frag_now_fix (), frag_now);
|
|
seginfo->tc_segment_info_data.last_contents_mark = symp;
|
|
}
|
|
else
|
|
{
|
|
/* If we have moved location since last flush, we need to emit a
|
|
data range. The previous contents type ended at the location
|
|
of the last update. */
|
|
if ((S_GET_VALUE (symp) != frag_now_fix ()
|
|
|| symbol_get_frag (symp) != frag_now))
|
|
{
|
|
enum sh64_elf_cr_type contents_type
|
|
= seginfo->tc_segment_info_data.contents_type;
|
|
|
|
if (update_type
|
|
&& contents_type != CRT_DATA
|
|
&& contents_type != CRT_NONE
|
|
&& ! seen_insn)
|
|
{
|
|
sh64_set_contents_type (CRT_DATA);
|
|
symp = seginfo->tc_segment_info_data.last_contents_mark;
|
|
}
|
|
|
|
/* If the symbol wasn't used up to make up a new range
|
|
descriptor, update it to this new location. */
|
|
if (symp)
|
|
{
|
|
S_SET_VALUE (symp, (valueT) frag_now_fix ());
|
|
symbol_set_frag (symp, frag_now);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
seen_insn = FALSE;
|
|
}
|
|
|
|
/* Called when the assembler is about to output some data, or maybe it's
|
|
just switching segments. */
|
|
|
|
void
|
|
sh64_flush_pending_output ()
|
|
{
|
|
sh64_update_contents_mark (TRUE);
|
|
sh_flush_pending_output ();
|
|
}
|
|
|
|
/* Flush out the last crange descriptor after all insns have been emitted. */
|
|
|
|
static void
|
|
sh64_flush_last_crange (abfd, seg, countparg)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
asection *seg;
|
|
PTR countparg ATTRIBUTE_UNUSED;
|
|
{
|
|
segment_info_type *seginfo;
|
|
|
|
seginfo = seg_info (seg);
|
|
|
|
if (seginfo
|
|
/* Only emit .cranges descriptors if we would make it more than one. */
|
|
&& seginfo->tc_segment_info_data.emitted_ranges != 0)
|
|
{
|
|
symbolS *symp;
|
|
|
|
/* We need a closing symbol, so switch to the indicated section and
|
|
emit it. */
|
|
|
|
/* Change to the section we're about to handle. */
|
|
subseg_set (seg, seginfo->tc_segment_info_data.mode_start_subseg);
|
|
|
|
symp = symbol_new (FAKE_LABEL_NAME, now_seg, (valueT) frag_now_fix (),
|
|
frag_now);
|
|
|
|
/* We'll be making a datalabel reference to it, so remove any code
|
|
flag. */
|
|
S_SET_OTHER (symp, S_GET_OTHER (symp) & ~STO_SH5_ISA32);
|
|
|
|
sh64_emit_crange (seginfo->tc_segment_info_data.mode_start_symbol,
|
|
symp,
|
|
seginfo->tc_segment_info_data.contents_type);
|
|
}
|
|
}
|
|
|
|
/* If and only if we see a call to md_number_to_chars without flagging the
|
|
start of an insn, we set the contents type to CRT_DATA, and only when
|
|
in SHmedia mode. Note that by default we don't bother changing when
|
|
going from SHcompact to data, as the constant pools in GCC-generated
|
|
SHcompact code would create an inordinate amount of .cranges
|
|
descriptors. */
|
|
|
|
static void
|
|
sh64_flag_output ()
|
|
{
|
|
if (sh64_isa_mode != sh64_isa_unspecified
|
|
&& !seen_insn
|
|
&& !sh64_end_of_assembly
|
|
&& !emitting_crange)
|
|
{
|
|
md_flush_pending_output ();
|
|
sh64_set_contents_type (CRT_DATA);
|
|
}
|
|
}
|
|
|
|
/* Vtables don't need "datalabel" but we allow it by simply deleting
|
|
any we find. */
|
|
|
|
static char *
|
|
strip_datalabels ()
|
|
{
|
|
char *src, *dest, *start=input_line_pointer;
|
|
|
|
for (src=input_line_pointer, dest=input_line_pointer; *src != '\n'; )
|
|
{
|
|
if (strncasecmp (src, "datalabel", 9) == 0
|
|
&& ISSPACE (src[9])
|
|
&& (src == start || !(ISALNUM (src[-1])) || src[-1] == '_'))
|
|
src += 10;
|
|
else
|
|
*dest++ = *src++;
|
|
}
|
|
|
|
if (dest < src)
|
|
*dest = '\n';
|
|
return src + 1;
|
|
}
|
|
|
|
static void
|
|
sh64_vtable_entry (ignore)
|
|
int ignore ATTRIBUTE_UNUSED;
|
|
{
|
|
char *eol = strip_datalabels ();
|
|
|
|
obj_elf_vtable_entry (0);
|
|
input_line_pointer = eol;
|
|
}
|
|
|
|
static void
|
|
sh64_vtable_inherit (ignore)
|
|
int ignore ATTRIBUTE_UNUSED;
|
|
{
|
|
char *eol = strip_datalabels ();
|
|
|
|
obj_elf_vtable_inherit (0);
|
|
input_line_pointer = eol;
|
|
}
|