diff options
author | Andrew Hsieh <andrewhsieh@google.com> | 2014-12-09 17:57:18 +0800 |
---|---|---|
committer | Andrew Hsieh <andrewhsieh@google.com> | 2014-12-09 19:50:14 +0800 |
commit | 5e8c1cf25beccac1d22d10dc866912394f42771b (patch) | |
tree | ee16b70f804484dc8e434e647e699ab50da2620f /binutils-2.25/gas/config/tc-nds32.h | |
parent | 8eebd7953384e6662ca926b003f2cdda8ccd3ee5 (diff) | |
download | toolchain_binutils-5e8c1cf25beccac1d22d10dc866912394f42771b.tar.gz toolchain_binutils-5e8c1cf25beccac1d22d10dc866912394f42771b.tar.bz2 toolchain_binutils-5e8c1cf25beccac1d22d10dc866912394f42771b.zip |
[2.25] sync to a30720e3e633f275250e26f85ccae5dbdddfb6c6
local patches will be re-applied later
commit a30720e3e633f275250e26f85ccae5dbdddfb6c6
Author: Alan Modra <amodra@gmail.com>
Date: Wed Nov 19 10:30:16 2014 +1030
daily update
Change-Id: Ieb2a3f4dd2ecb289ac5305ff08d428b2847494ab
Diffstat (limited to 'binutils-2.25/gas/config/tc-nds32.h')
-rw-r--r-- | binutils-2.25/gas/config/tc-nds32.h | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/binutils-2.25/gas/config/tc-nds32.h b/binutils-2.25/gas/config/tc-nds32.h new file mode 100644 index 00000000..1483d51f --- /dev/null +++ b/binutils-2.25/gas/config/tc-nds32.h @@ -0,0 +1,281 @@ +/* tc-nds32.h -- Header file for tc-nds32.c. + Copyright (C) 2012-2014 Free Software Foundation, Inc. + Contributed by Andes Technology Corporation. + + This file is part of GAS. + + 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. */ + +#ifndef TC_NDS32 +#define TC_NDS32 + +#include "bfd_stdint.h" + +#define LISTING_HEADER \ + (target_big_endian ? "NDS32 GAS" : "NDS32 GAS Little Endian") + +/* The target BFD architecture. */ +#define TARGET_ARCH bfd_arch_nds32 + +/* mapping to mach_table[5] */ +#define ISA_V1 bfd_mach_n1h +#define ISA_V2 bfd_mach_n1h_v2 +#define ISA_V3 bfd_mach_n1h_v3 +#define ISA_V3M bfd_mach_n1h_v3m + +/* Default to big endian. Please note that for Andes architecture, + instructions are always in big-endian format. */ +#ifndef TARGET_BYTES_BIG_ENDIAN +#define TARGET_BYTES_BIG_ENDIAN 1 +#endif + +/* as.c. */ +/* Extend GAS command line option handling capability. */ +extern int nds32_parse_option (int, char *); +extern void nds32_after_parse_args (void); +/* The endianness of the target format may change based on command + line arguments. */ +extern const char * nds32_target_format (void); + +#define md_parse_option(optc, optarg) nds32_parse_option (optc, optarg) +#define md_after_parse_args() nds32_after_parse_args () +#define TARGET_FORMAT nds32_target_format() + +/* expr.c */ +extern int nds32_parse_name (char const *, expressionS *, enum expr_mode, char *); +extern bfd_boolean nds32_allow_local_subtract (expressionS *, expressionS *, segT); +#define md_parse_name(name, exprP, mode, nextcharP) \ + nds32_parse_name (name, exprP, mode, nextcharP) +#define md_allow_local_subtract(lhs,rhs,sect) nds32_allow_local_subtract (lhs, rhs, sect) + +/* dwarf2dbg.c. */ +#define DWARF2_USE_FIXED_ADVANCE_PC 1 + +/* write.c. */ +extern long nds32_pcrel_from_section (struct fix *, segT); +extern bfd_boolean nds32_fix_adjustable (struct fix *); +extern void nds32_frob_file (void); +extern void nds32_post_relax_hook (void); +extern void nds32_frob_file_before_fix (void); +extern void elf_nds32_final_processing (void); +extern int nds32_validate_fix_sub (struct fix *, segT); +extern int nds32_force_relocation (struct fix *); +extern void nds32_set_section_relocs (asection *, arelent ** , unsigned int); + +/* Fill in rs_align_code fragments. TODO: Review this. */ +extern void nds32_handle_align (fragS *); +extern int nds32_relax_frag (segT, fragS *, long); +extern int tc_nds32_regname_to_dw2regnum (char *); +extern void tc_nds32_frame_initial_instructions (void); + +#define MD_PCREL_FROM_SECTION(fix, sect) nds32_pcrel_from_section (fix, sect) +#define TC_FINALIZE_SYMS_BEFORE_SIZE_SEG 0 +#define tc_fix_adjustable(FIX) nds32_fix_adjustable (FIX) +#define md_apply_fix(fixP, addn, seg) nds32_apply_fix (fixP, addn, seg) +#define md_post_relax_hook nds32_post_relax_hook () +#define tc_frob_file_before_fix() nds32_frob_file_before_fix () +#define elf_tc_final_processing() elf_nds32_final_processing () +/* For DIFF relocations. The default behavior is inconsistent with the + asm internal document. */ +#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \ + (! SEG_NORMAL (SEC) || TC_FORCE_RELOCATION (FIX)) +#define TC_FORCE_RELOCATION(fix) nds32_force_relocation (fix) +#define TC_VALIDATE_FIX_SUB(FIX,SEG) nds32_validate_fix_sub (FIX,SEG) +#define SET_SECTION_RELOCS(sec, relocs, n) nds32_set_section_relocs (sec, relocs, n) +/* Values passed to md_apply_fix don't include the symbol value. */ +#define MD_APPLY_SYM_VALUE(FIX) 0 +#define HANDLE_ALIGN(f) nds32_handle_align (f) +#undef DIFF_EXPR_OK /* They should be fixed in linker. */ +#define md_relax_frag(segment, fragP, stretch) nds32_relax_frag (segment, fragP, stretch) +#define WORKING_DOT_WORD /* We don't need to handle .word strangely. */ +/* Using to chain fixup with previous fixup. */ +#define TC_FIX_TYPE struct fix * +#define TC_INIT_FIX_DATA(fixP) \ + do \ + { \ + fixP->tc_fix_data = NULL; \ + } \ + while (0) + +/* read.c. */ +/* Extend GAS macro handling capability. */ +extern void nds32_macro_start (void); +extern void nds32_macro_end (void); +extern void nds32_macro_info (void *); +extern void nds32_start_line_hook (void); +extern void nds32_elf_section_change_hook (void); +extern void md_begin (void); +extern void md_end (void); +extern int nds32_start_label (int, int); +extern void nds32_cleanup (void); +extern void nds32_flush_pending_output (void); +extern void nds32_cons_align (int); +extern void nds32_check_label (symbolS *); +extern void nds32_frob_label (symbolS *); +extern void nds32_pre_do_align (int, char *, int, int); +extern void nds32_do_align (int); + +#define md_macro_start() nds32_macro_start () +#define md_macro_end() nds32_macro_end () +#define md_macro_info(args) nds32_macro_info (args) +#define TC_START_LABEL(C, S, STR) (C == ':' && nds32_start_label (0, 0)) +#define tc_check_label(label) nds32_check_label (label) +#define tc_frob_label(label) nds32_frob_label (label) +#define md_end md_end +#define md_start_line_hook() nds32_start_line_hook () +#define md_cons_align(n) nds32_cons_align (n) +/* COLE: TODO: Review md_do_align. */ +#define md_do_align(N, FILL, LEN, MAX, LABEL) \ + nds32_pre_do_align (N, FILL, LEN, MAX); \ + if ((N) > 1 && (subseg_text_p (now_seg) \ + || strncmp (now_seg->name, ".gcc_except_table", sizeof(".gcc_except_table") - 1) == 0)) \ + nds32_do_align (N); \ + goto LABEL; +#define md_elf_section_change_hook() nds32_elf_section_change_hook () +#define md_flush_pending_output() nds32_flush_pending_output () +#define md_cleanup() nds32_cleanup () +#define LOCAL_LABELS_FB 1 /* Permit temporary numeric labels. */ + +/* frags.c. */ + +#define NDS32_FRAG_RELAXABLE 0x1 +#define NDS32_FRAG_RELAXED 0x2 +#define NDS32_FRAG_BRANCH 0x4 +#define NDS32_FRAG_LABEL 0x8 + +struct nds32_frag_type +{ + relax_substateT flag; + struct nds32_opcode *opcode; + uint32_t insn; + /* To Save previos label fixup if existence. */ + struct fix *fixup; +}; + +extern void nds32_frag_init (fragS *); + +#define TC_FRAG_TYPE struct nds32_frag_type +#define TC_FRAG_INIT(fragP) nds32_frag_init (fragP) + +/* CFI directive. */ +extern void nds32_elf_frame_initial_instructions (void); +extern int tc_nds32_regname_to_dw2regnum (char *); + +#define TARGET_USE_CFIPOP 1 +#define DWARF2_DEFAULT_RETURN_COLUMN 30 +#define DWARF2_CIE_DATA_ALIGNMENT -4 +#define DWARF2_LINE_MIN_INSN_LENGTH 2 + +#define tc_regname_to_dw2regnum tc_nds32_regname_to_dw2regnum +#define tc_cfi_frame_initial_instructions tc_nds32_frame_initial_instructions + +/* COLE: TODO: Review These. They seem to be obsoleted. */ +#if 1 +#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ + ((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))) +#define TC_HANDLES_FX_DONE +/* This arranges for gas/write.c to not apply a relocation if + obj_fix_adjustable() says it is not adjustable. */ +#define TC_FIX_ADJUSTABLE(fixP) obj_fix_adjustable (fixP) +#endif + +/* Because linker may relax the code, assemble-time expression + optimization is not allowed. */ +#define md_allow_eh_opt 0 + +/* For nds32 relax. */ +enum nds32_br_range +{ + BR_RANGE_S256 = 0, + BR_RANGE_S16K, + BR_RANGE_S64K, + BR_RANGE_S16M, + BR_RANGE_U4G, + BR_RANGE_NUM +}; + +enum nds32_ramp +{ + NDS32_CREATE_LABEL = 1, + NDS32_RELAX = (1 << 1), /* Obsolete in the future. */ + NDS32_ORIGIN = (1 << 2), + NDS32_INSN16 = (1 << 3), + NDS32_PTR = (1 << 4), + NDS32_ABS = (1 << 5), + NDS32_HINT = (1 << 6), + NDS32_FIX = (1 << 7), + NDS32_ADDEND = (1 << 8), + NDS32_SYM = (1 << 9) +}; + +typedef struct nds32_relax_fixup_info +{ + int offset; + int size; + /* Reverse branch has to jump to the end of instruction pattern. */ + int ramp; + enum bfd_reloc_code_real r_type; +} nds32_relax_fixup_info_t; + +typedef struct nds32_cond_field +{ + int offset; + int bitpos; /* Register position. */ + int bitmask; /* Number of register bits. */ + bfd_boolean signed_extend; +} nds32_cond_field_t; + +/* The max relaxation pattern is 20-bytes including the nop. */ +#define NDS32_MAXCHAR 20 +/* In current, the max entend number of instruction for one pseudo instruction + is 4, but its number of relocation may be 12. */ +#define MAX_RELAX_NUM 4 +#define MAX_RELAX_FIX 12 + +typedef struct nds32_relax_info +{ + /* Opcode for the instruction. */ + const char *opcode; + enum nds32_br_range br_range; + nds32_cond_field_t cond_field[MAX_RELAX_NUM]; /* TODO: Reuse nds32_field? */ + /* Code sequences for different branch range. */ + uint32_t relax_code_seq[BR_RANGE_NUM][MAX_RELAX_NUM]; + nds32_cond_field_t relax_code_condition[BR_RANGE_NUM][MAX_RELAX_NUM]; + unsigned int relax_code_size[BR_RANGE_NUM]; + int relax_branch_isize[BR_RANGE_NUM]; + nds32_relax_fixup_info_t relax_fixup[BR_RANGE_NUM][MAX_RELAX_FIX]; +} relax_info_t; + +enum nds32_relax_hint_type +{ + NDS32_RELAX_HINT_NONE = 0, + NDS32_RELAX_HINT_LA, + NDS32_RELAX_HINT_LS +}; + +struct nds32_relax_hint_table +{ + enum nds32_relax_hint_type main_type; + unsigned int relax_code_size; + uint32_t relax_code_seq[MAX_RELAX_NUM]; + nds32_relax_fixup_info_t relax_fixup[MAX_RELAX_FIX]; +}; + +#endif /* TC_NDS32 */ |