X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-sh.h;h=3a196e8674a1309f23cf622d44917328cd4ff20e;hb=9dfa3e63479d3c3106c7e5e86764a0ed8e22aa7f;hp=2452444e67096ce2ac92199af5e68f64f68585a3;hpb=9addcbb1821ad664a6c180820fdd10d31c9fcbf2;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/tc-sh.h b/gas/config/tc-sh.h index 2452444e67..3a196e8674 100644 --- a/gas/config/tc-sh.h +++ b/gas/config/tc-sh.h @@ -1,12 +1,11 @@ /* This file is tc-sh.h - - Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc. + Copyright (C) 1993-2016 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 2, or (at your option) + 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, @@ -16,65 +15,245 @@ 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. */ + the Free Software Foundation, 51 Franklin Street - Fifth Floor, + Boston, MA 02110-1301, USA. */ #define TC_SH -/* This macro translates between an internal fix and an coff reloc type */ -#define TC_COFF_FIX2RTYPE(fix) ((fix)->fx_r_type) - -#define BFD_ARCH bfd_arch_sh - -extern int shl; +#define TARGET_ARCH bfd_arch_sh -#define COFF_MAGIC (shl ? SH_ARCH_MAGIC_LITTLE : SH_ARCH_MAGIC_BIG) +/* The type fixS is defined (to struct fix) in write.h, but write.h uses + definitions from this file. To avoid problems with including write.h + after the "right" definitions, don't; just forward-declare struct fix + here. */ +struct fix; +struct segment_info_struct; +struct internal_reloc; /* Whether -relax was used. */ extern int sh_relax; +/* Whether -small was used. */ +extern int sh_small; + +/* Don't try to break words. */ +#define WORKING_DOT_WORD + +/* We require .long, et. al., to be aligned correctly. */ +#define md_cons_align(nbytes) sh_cons_align (nbytes) +extern void sh_cons_align (int); + +/* We need to optimize expr with taking account of rs_align_test + frags. */ + +#ifdef OBJ_ELF +#define md_optimize_expr(l,o,r) sh_optimize_expr (l, o, r) +extern int sh_optimize_expr (expressionS *, operatorT, expressionS *); +#endif + /* When relaxing, we need to generate relocations for alignment directives. */ #define HANDLE_ALIGN(frag) sh_handle_align (frag) -extern void sh_handle_align PARAMS ((fragS *)); +extern void sh_handle_align (fragS *); + +#define MAX_MEM_FOR_RS_ALIGN_CODE (1 + 2) /* We need to force out some relocations when relaxing. */ #define TC_FORCE_RELOCATION(fix) sh_force_relocation (fix) -extern int sh_force_relocation (); +extern int sh_force_relocation (struct fix *); -/* We need to write out relocs which have not been completed. */ -#define TC_COUNT_RELOC(fix) ((fix)->fx_addsy != NULL) +/* This macro decides whether a particular reloc is an entry in a + switch table. It is used when relaxing, because the linker needs + to know about all such entries so that it can adjust them if + necessary. */ -#define TC_RELOC_MANGLE(seg, fix, int, paddr) \ - sh_coff_reloc_mangle ((seg), (fix), (int), (paddr)) -extern void sh_coff_reloc_mangle (); +#define SWITCH_TABLE(FIX) \ + ((FIX)->fx_addsy != NULL \ + && (FIX)->fx_subsy != NULL \ + && S_GET_SEGMENT ((FIX)->fx_addsy) == text_section \ + && S_GET_SEGMENT ((FIX)->fx_subsy) == text_section \ + && ((FIX)->fx_r_type == BFD_RELOC_32 \ + || (FIX)->fx_r_type == BFD_RELOC_16 \ + || (FIX)->fx_r_type == BFD_RELOC_8)) -#define IGNORE_NONSTANDARD_ESCAPES +#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \ + (! SEG_NORMAL (SEC) \ + || TC_FORCE_RELOCATION (FIX) \ + || (sh_relax && SWITCH_TABLE (FIX))) -#define tc_coff_symbol_emit_hook(a) ; /* not used */ +/* Don't complain when we leave fx_subsy around. */ +#define TC_VALIDATE_FIX_SUB(FIX, SEG) \ + ((md_register_arithmetic || (SEG) != reg_section) \ + && sh_relax && SWITCH_TABLE (FIX)) -#define DO_NOT_STRIP 0 -#define DO_STRIP 0 -#define LISTING_HEADER (shl ? "Hitachi Super-H GAS Little Endian" : "Hitachi Super-H GAS Big Endian") -#define NEED_FX_R_TYPE 1 -#define RELOC_32 1234 +#define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section (FIX, SEC) +extern long md_pcrel_from_section (struct fix *, segT); -#define TC_KEEP_FX_OFFSET 1 +/* SH_COUNT relocs are allowed outside of frag. + The target is also buggy and sets fix size too large for other relocs. */ +#define TC_FX_SIZE_SLACK(FIX) \ + ((FIX)->fx_r_type == BFD_RELOC_SH_COUNT ? -1 : 2) -#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag) -extern int tc_coff_sizemachdep PARAMS ((fragS *)); +#define IGNORE_NONSTANDARD_ESCAPES + +#define LISTING_HEADER \ + (!target_big_endian \ + ? "Renesas / SuperH SH GAS Little Endian" \ + : "Renesas / SuperH SH GAS Big Endian") #define md_operand(x) extern const struct relax_type md_relax_table[]; #define TC_GENERIC_RELAX_TABLE md_relax_table -#define tc_frob_file sh_coff_frob_file -extern void sh_coff_frob_file PARAMS (()); +/* We record, for each section, whether we have most recently output a + CODE reloc or a DATA reloc. */ +struct sh_segment_info_type +{ + int in_code : 1; +}; +#define TC_SEGMENT_INFO_TYPE struct sh_segment_info_type + +/* We call a routine to emit a reloc for a label, so that the linker + can align loads and stores without crossing a label. */ +extern void sh_frob_label (symbolS *); +#define tc_frob_label(sym) sh_frob_label (sym) + +/* We call a routine to flush pending output in order to output a DATA + reloc when required. */ +extern void sh_flush_pending_output (void); +#define md_flush_pending_output() sh_flush_pending_output () + +#define tc_frob_file_before_adjust sh_frob_file +extern void sh_frob_file (void); + + +#ifdef OBJ_COFF +/* COFF specific definitions. */ + +#define COFF_MAGIC (!target_big_endian ? SH_ARCH_MAGIC_LITTLE : SH_ARCH_MAGIC_BIG) + +#define tc_coff_symbol_emit_hook(a) ; /* Not used. */ + +#define TC_KEEP_FX_OFFSET 1 + +#define SEG_NAME(SEG) segment_name (SEG) + +/* We align most sections to a 16 byte boundary. */ +#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) \ + (strncmp (SEG_NAME (SEG), ".stabstr", 8) == 0 \ + ? 0 \ + : ((strncmp (SEG_NAME (SEG), ".stab", 5) == 0 \ + || strcmp (SEG_NAME (SEG), ".ctors") == 0 \ + || strcmp (SEG_NAME (SEG), ".dtors") == 0) \ + ? 2 \ + : (sh_small ? 2 : 4))) + +#endif /* OBJ_COFF */ + +#ifdef OBJ_ELF +/* ELF specific definitions. */ + +/* Whether or not the target is big endian. */ +extern int target_big_endian; +#ifdef TE_LINUX +#define TARGET_FORMAT (!target_big_endian ? "elf32-sh-linux" : "elf32-shbig-linux") +#elif defined(TE_NetBSD) +#define TARGET_FORMAT (!target_big_endian ? "elf32-shl-nbsd" : "elf32-sh-nbsd") +#elif defined TARGET_SYMBIAN +#define TARGET_FORMAT (!target_big_endian ? "elf32-shl-symbian" : "elf32-sh-symbian") +#elif defined (TE_VXWORKS) +#define TARGET_FORMAT (!target_big_endian ? "elf32-shl-vxworks" : "elf32-sh-vxworks") +#elif defined (TE_UCLINUX) +#define TARGET_FORMAT sh_uclinux_target_format () +extern const char * sh_uclinux_target_format (void); +#else +#define TARGET_FORMAT (!target_big_endian ? "elf32-shl" : "elf32-sh") +#endif + +#define elf_tc_final_processing sh_elf_final_processing +extern void sh_elf_final_processing (void); + +#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs. */ + +#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" + +/* This is the relocation type for direct references to + GLOBAL_OFFSET_TABLE. It comes up in complicated expressions such + as _GLOBAL_OFFSET_TABLE_+[.-.L284], which cannot be expressed + normally with the regular expressions. The fixup specified here + when used at runtime implies that we should add the address of the + GOT to the specified location, and as a result we have simplified + the expression into something we can use. */ +#define TC_RELOC_GLOBAL_OFFSET_TABLE BFD_RELOC_SH_GOTPC + +#define tc_fix_adjustable(FIX) sh_fix_adjustable(FIX) +extern bfd_boolean sh_fix_adjustable (struct fix *); + +/* Values passed to md_apply_fix don't include symbol values. */ +#define MD_APPLY_SYM_VALUE(FIX) 0 + +/* This expression evaluates to true if the relocation is for a local object + for which we still want to do the relocation at runtime. False if we + are willing to perform this relocation while building the .o file. + + We can't resolve references to the GOT or the PLT when creating the + object file, since these tables are only created by the linker. + Also, if the symbol is global, weak, common or not defined, the + assembler can't compute the appropriate reloc, since its location + can only be determined at link time. */ + +#define TC_FORCE_RELOCATION_LOCAL(FIX) \ + (!(FIX)->fx_pcrel \ + || (FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \ + || (FIX)->fx_r_type == BFD_RELOC_32_GOT_PCREL \ + || (FIX)->fx_r_type == BFD_RELOC_SH_GOTPC \ + || TC_FORCE_RELOCATION (FIX)) + +#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX, SEG) \ + ((!md_register_arithmetic && (SEG) == reg_section) \ + || (sh_relax && SWITCH_TABLE (FIX))) + +/* This keeps the subtracted symbol around, for use by PLT_PCREL + relocs. */ +#define TC_FORCE_RELOCATION_SUB_ABS(FIX, SEG) \ + ((FIX)->fx_r_type == BFD_RELOC_32_PLT_PCREL \ + || (!md_register_arithmetic && (SEG) == reg_section)) + +/* 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)))) + +#define md_parse_name(name, exprP, mode, nextcharP) \ + sh_parse_name ((name), (exprP), (mode), (nextcharP)) +int sh_parse_name (char const *, expressionS *, + enum expr_mode, char *); + +#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \ + sh_cons_fix_new ((FRAG), (OFF), (LEN), (EXP), (RELOC)) +void sh_cons_fix_new (fragS *, int, int, expressionS *, + bfd_reloc_code_real_type); + +/* This is used to construct expressions out of @GOTOFF, @PLT and @GOT + symbols. The relocation type is stored in X_md. */ +#define O_PIC_reloc O_md1 + +#define TARGET_USE_CFIPOP 1 + +#define tc_cfi_frame_initial_instructions sh_cfi_frame_initial_instructions +extern void sh_cfi_frame_initial_instructions (void); + +#define tc_regname_to_dw2regnum sh_regname_to_dw2regnum +extern int sh_regname_to_dw2regnum (char *); + +/* All SH instructions are multiples of 16 bits. */ +#define DWARF2_LINE_MIN_INSN_LENGTH 2 +#define DWARF2_DEFAULT_RETURN_COLUMN 17 +#define DWARF2_CIE_DATA_ALIGNMENT (-4) -/* We use a special alignment function to insert the correct nop - pattern. */ -extern int sh_do_align PARAMS ((int, const char *)); -#define md_do_align(n,fill,l) if (sh_do_align (n,fill)) goto l +#endif /* OBJ_ELF */ -/* end of tc-sh.h */ +#define H_TICK_HEX 1