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Diffstat (limited to 'gas/config/tc-sh64.h')
| -rw-r--r-- | gas/config/tc-sh64.h | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/gas/config/tc-sh64.h b/gas/config/tc-sh64.h new file mode 100644 index 0000000..a8dc1f2 --- /dev/null +++ b/gas/config/tc-sh64.h @@ -0,0 +1,212 @@ +/* This file is tc-sh64.h + Copyright (C) 2000, 2001 Free Software Foundation, Inc. + + This file is part of GAS, the GNU Assembler. + + GAS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + GAS is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with GAS; see the file COPYING. If not, write to + the Free Software Foundation, 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#define TC_SH64 +#include "config/tc-sh.h" +#include "elf/sh.h" + +/* We need to override the tc-sh.h settings of HANDLE_ALIGN and + MAX_MEM_FOR_RS_ALIGN_CODE; we might need to put in SHmedia NOP:s, not + SHcompact NOP:s. */ +#undef HANDLE_ALIGN +#define HANDLE_ALIGN(frag) sh64_handle_align (frag) +extern void sh64_handle_align PARAMS ((fragS *)); + +#undef MAX_MEM_FOR_RS_ALIGN_CODE +#define MAX_MEM_FOR_RS_ALIGN_CODE sh64_max_mem_for_rs_align_code () +extern int sh64_max_mem_for_rs_align_code PARAMS ((void)); + +#undef LISTING_HEADER +#define LISTING_HEADER \ + (target_big_endian ? \ + "Hitachi SHcompact/SHmedia Big Endian GAS" \ + : "Hitachi SHcompact/SHmedia Little Endian GAS") + +/* We need to record the new frag position after an .align. */ +extern void sh64_do_align PARAMS ((int, const char *, int, int)); +#define md_do_align(n, fill, len, max, l) \ + do { sh64_do_align (n, fill, len, max); goto l; } while (0) + +struct sh64_segment_info_type +{ + /* The type of the section is initialized when the range_start_symbol + member is non-NULL. */ + symbolS *mode_start_symbol; + subsegT mode_start_subseg; + + /* A stored symbol indicating location of last call of + "md_flush_pending_output". It is NULLed when we actually use it; + otherwise the contents is just filled in with segment, frag and + offset within frag. */ + symbolS *last_contents_mark; + + unsigned int emitted_ranges; + enum sh64_elf_cr_type contents_type; + + /* This is used by the SH1-4 parts; we set it to 0 for SHmedia code and + data. */ + unsigned int in_code : 1; +}; + +#undef TC_SEGMENT_INFO_TYPE +#define TC_SEGMENT_INFO_TYPE struct sh64_segment_info_type + +#undef TARGET_FORMAT +#define TARGET_FORMAT sh64_target_format () +extern const char *sh64_target_format PARAMS ((void)); + +#define TARGET_MACH sh64_target_mach () +extern int sh64_target_mach PARAMS ((void)); + +#undef TC_RELOC_RTSYM_LOC_FIXUP +#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ + ((FIX)->fx_r_type != BFD_RELOC_32_PLT_PCREL \ + && (FIX)->fx_r_type != BFD_RELOC_SH_PLT_LOW16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_PLT_MEDLOW16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_PLT_MEDHI16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_PLT_HI16 \ + && (FIX)->fx_r_type != BFD_RELOC_32_GOT_PCREL \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOT_LOW16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOT_MEDLOW16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOT_MEDHI16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOT_HI16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOT10BY4 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOT10BY8 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPLT32 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPLT_LOW16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPLT_MEDLOW16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPLT_MEDHI16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPLT_HI16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPLT10BY4 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPLT10BY8 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPC \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPC_LOW16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPC_MEDLOW16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPC_MEDHI16 \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPC_HI16 \ + && ((FIX)->fx_addsy == NULL \ + || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ + && ! S_IS_WEAK ((FIX)->fx_addsy) \ + && S_IS_DEFINED ((FIX)->fx_addsy) \ + && ! S_IS_COMMON ((FIX)->fx_addsy)))) + +/* Note the kludge: we want to put back C, and we also want to consume the + expression, since we have handled it ourselves. FIXME: What we really + need is a new GAS infrastructure feature: md_qualifier. */ +#undef md_parse_name +#define md_parse_name(NAME, EXP, CP) \ + sh64_consume_datalabel (NAME, EXP, CP, operand) +extern int sh64_consume_datalabel + PARAMS ((const char *, expressionS *, char *, segT (*) (expressionS *))); + +/* Saying "$" is the same as saying ".". */ +#define DOLLAR_DOT + +#define MD_PCREL_FROM_SECTION(FIXP, SEC) \ + shmedia_md_pcrel_from_section (FIXP, SEC) + +extern valueT shmedia_md_pcrel_from_section PARAMS ((struct fix *, segT)); + +/* We need to mark this symbol as a BranchTarget; setting st_other for it + and adding 1 to its value (temporarily). */ +extern void sh64_frob_label PARAMS ((symbolS *)); + +#undef tc_frob_label +#define tc_frob_label(sym) \ + do { sh_frob_label (); sh64_frob_label (sym); } while (0) + +#define tc_symbol_new_hook(s) sh64_frob_label (s) + +/* We use this to mark our "datalabel" symbol copies. The "mark" is NULL + for an ordinary symbol, and the pointer to the "ordinary" symbol for a + datalabel symbol. */ +#define TC_SYMFIELD_TYPE symbolS * + +#define tc_frob_symbol(symp, punt) \ + do \ + { \ + punt = sh64_exclude_symbol (symp); \ + } \ + while (0) + +extern int sh64_exclude_symbol PARAMS ((symbolS *)); + +extern void sh64_adjust_symtab PARAMS ((void)); +#define tc_adjust_symtab sh64_adjust_symtab + +#undef md_flush_pending_output +#define md_flush_pending_output() sh64_flush_pending_output () +extern void sh64_flush_pending_output PARAMS ((void)); + +/* Note that tc-sh.c has a sh_frob_section, but it's called from + tc_frob_file_before_adjust. */ +#define tc_frob_section(sec) shmedia_frob_section_type (sec) +extern void shmedia_frob_section_type PARAMS ((asection *)); + +#define ELF_TC_SPECIAL_SECTIONS \ + { ".cranges", SHT_PROGBITS, 0 }, + +/* We need to emit fixups relative to the frag in which the instruction + resides. Safest way without calculating max fragment growth or making + it a fixed number is to provide a pointer to the opcode frag. + + We also need to emit the right NOP pattern in .align frags. This is + done after the text-to-bits assembly pass, so we need to mark it with + the ISA setting at the time the .align was assembled. */ +#define TC_FRAG_TYPE struct sh64_tc_frag_data + +enum sh64_isa_values + { + sh64_isa_unspecified, + sh64_isa_shcompact, + sh64_isa_shmedia, + + /* Special guard value used in contexts when we don't know which ISA it + is, just that it's specified (not sh64_isa_unspecified). */ + sh64_isa_sh5_guard + }; + +struct sh64_tc_frag_data +{ + fragS *opc_frag; + enum sh64_isa_values isa; +}; + +extern enum sh64_isa_values sh64_isa_mode; + +#define TC_FRAG_INIT(FRAGP) \ + do \ + { \ + (FRAGP)->tc_frag_data.opc_frag = sh64_last_insn_frag; \ + (FRAGP)->tc_frag_data.isa = sh64_isa_mode; \ + } \ + while (0) + +/* This variable is set whenever we generate (or grow) a new opcode frag + in shmedia_build_Mytes. */ +extern fragS *sh64_last_insn_frag; + +#define md_end() shmedia_md_end () +void shmedia_md_end PARAMS ((void)); + +/* Because we make .debug_line hold the SHmedia instruction address | 1, + we have to say we only have minimum byte-size insns. */ +#undef DWARF2_LINE_MIN_INSN_LENGTH +#define DWARF2_LINE_MIN_INSN_LENGTH 1 |