| /* This file is tc-sh64.h |
| Copyright (C) 2000-2016 Free Software Foundation, Inc. |
| |
| This file is part of GAS, the GNU Assembler. |
| |
| GAS is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GAS is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GAS; see the file COPYING. If not, write to |
| the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #define TC_SH64 |
| #include "config/tc-sh.h" |
| #include "elf/sh.h" |
| #include "elf32-sh64.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 (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 (void); |
| |
| #undef LISTING_HEADER |
| #define LISTING_HEADER \ |
| (target_big_endian ? \ |
| "SuperH SHcompact/SHmedia Big Endian GAS" \ |
| : "SuperH SHcompact/SHmedia Little Endian GAS") |
| |
| /* We need to record the new frag position after an .align. */ |
| extern void sh64_do_align (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 (void); |
| |
| #define TARGET_MACH sh64_target_mach () |
| extern int sh64_target_mach (void); |
| |
| #undef TC_FORCE_RELOCATION_LOCAL |
| #define TC_FORCE_RELOCATION_LOCAL(FIX) \ |
| (!(FIX)->fx_pcrel \ |
| || (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 \ |
| || TC_FORCE_RELOCATION (FIX)) |
| |
| #undef TC_FORCE_RELOCATION_SUB_SAME |
| #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \ |
| (! SEG_NORMAL (SEC) \ |
| || TC_FORCE_RELOCATION (FIX) \ |
| || (sh_relax && SWITCH_TABLE (FIX)) \ |
| || *symbol_get_tc ((FIX)->fx_addsy) != NULL) |
| |
| /* Don't complain when we leave fx_subsy around. */ |
| #undef TC_VALIDATE_FIX_SUB |
| #define TC_VALIDATE_FIX_SUB(FIX, SEG) \ |
| ((md_register_arithmetic || (SEG) != reg_section) \ |
| && ((FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \ |
| || (sh_relax && SWITCH_TABLE (FIX)) \ |
| || *symbol_get_tc ((FIX)->fx_addsy) != NULL)) |
| |
| /* 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, MODE, CP) \ |
| sh64_consume_datalabel (NAME, EXP, MODE, CP, operand) |
| extern int sh64_consume_datalabel (const char *, expressionS *, |
| enum expr_mode, char *, |
| segT (*) (expressionS *, enum expr_mode)); |
| |
| /* Saying "$" is the same as saying ".". */ |
| #define DOLLAR_DOT |
| |
| #undef MD_PCREL_FROM_SECTION |
| #define MD_PCREL_FROM_SECTION(FIX, SEC) \ |
| shmedia_md_pcrel_from_section (FIX, SEC) |
| |
| extern valueT shmedia_md_pcrel_from_section (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 (symbolS *); |
| |
| #undef tc_frob_label |
| #define tc_frob_label(sym) \ |
| do { sh_frob_label (sym); 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 (symbolS *); |
| |
| extern void sh64_adjust_symtab (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 (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 (asection *); |
| |
| /* 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 (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 |
| |
| #define TC_FAKE_LABEL(NAME) sh64_fake_label(NAME) |
| extern int sh64_fake_label (const char *); |