1 /* This file is tc-msp430.h 2 Copyright (C) 2002, 2004, 2005, 2007 Free Software Foundation, Inc. 3 4 Contributed by Dmitry Diky <diwil@mail.ru> 5 6 This file is part of GAS, the GNU Assembler. 7 8 GAS is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3, or (at your option) 11 any later version. 12 13 GAS is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GAS; see the file COPYING. If not, write to the Free 20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 21 02110-1301, USA. */ 22 23 #define TC_MSP430 24 /* By convention, you should define this macro in the `.h' file. For 25 example, `tc-m68k.h' defines `TC_M68K'. You might have to use this 26 if it is necessary to add CPU specific code to the object format 27 file. */ 28 29 #define TARGET_FORMAT "elf32-msp430" 30 /* This macro is the BFD target name to use when creating the output 31 file. This will normally depend upon the `OBJ_FMT' macro. */ 32 33 #define TARGET_ARCH bfd_arch_msp430 34 /* This macro is the BFD architecture to pass to `bfd_set_arch_mach'. */ 35 36 #define TARGET_MACH 0 37 /* This macro is the BFD machine number to pass to 38 `bfd_set_arch_mach'. If it is not defined, GAS will use 0. */ 39 40 #define TARGET_BYTES_BIG_ENDIAN 0 41 /* You should define this macro to be non-zero if the target is big 42 endian, and zero if the target is little endian. */ 43 44 #define ONLY_STANDARD_ESCAPES 45 /* If you define this macro, GAS will warn about the use of 46 nonstandard escape sequences in a string. */ 47 48 #define md_operand(x) 49 /* GAS will call this function for any expression that can not be 50 recognized. When the function is called, `input_line_pointer' 51 will point to the start of the expression. */ 52 53 #define md_number_to_chars number_to_chars_littleendian 54 /* This should just call either `number_to_chars_bigendian' or 55 `number_to_chars_littleendian', whichever is appropriate. On 56 targets like the MIPS which support options to change the 57 endianness, which function to call is a runtime decision. On 58 other targets, `md_number_to_chars' can be a simple macro. */ 59 60 #define WORKING_DOT_WORD 61 /* 62 `md_short_jump_size' 63 `md_long_jump_size' 64 `md_create_short_jump' 65 `md_create_long_jump' 66 If `WORKING_DOT_WORD' is defined, GAS will not do broken word 67 processing (*note Broken words::.). Otherwise, you should set 68 `md_short_jump_size' to the size of a short jump (a jump that is 69 just long enough to jump around a long jmp) and 70 `md_long_jump_size' to the size of a long jump (a jump that can go 71 anywhere in the function), You should define 72 `md_create_short_jump' to create a short jump around a long jump, 73 and define `md_create_long_jump' to create a long jump. */ 74 75 #define MD_APPLY_FIX3 76 /* Values passed to md_apply_fix don't include symbol values. */ 77 #define MD_APPLY_SYM_VALUE(FIX) 0 78 79 #define TC_HANDLES_FX_DONE 80 81 #undef RELOC_EXPANSION_POSSIBLE 82 /* If you define this macro, it means that `tc_gen_reloc' may return 83 multiple relocation entries for a single fixup. In this case, the 84 return value of `tc_gen_reloc' is a pointer to a null terminated 85 array. */ 86 87 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section(FIXP, SEC) 88 /* If you define this macro, it should return the offset between the 89 address of a PC relative fixup and the position from which the PC 90 relative adjustment should be made. On many processors, the base 91 of a PC relative instruction is the next instruction, so this 92 macro would return the length of an instruction. */ 93 94 extern long md_pcrel_from_section (struct fix *, segT); 95 96 #define LISTING_WORD_SIZE 2 97 /* The number of bytes to put into a word in a listing. This affects 98 the way the bytes are clumped together in the listing. For 99 example, a value of 2 might print `1234 5678' where a value of 1 100 would print `12 34 56 78'. The default value is 4. */ 101 102 #define LEX_DOLLAR 0 103 /* MSP430 port does not use `$' as a logical line separator */ 104 105 #define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 0 106 /* An `.lcomm' directive with no explicit alignment parameter will 107 use this macro to set P2VAR to the alignment that a request for 108 SIZE bytes will have. The alignment is expressed as a power of 109 two. If no alignment should take place, the macro definition 110 should do nothing. Some targets define a `.bss' directive that is 111 also affected by this macro. The default definition will set 112 P2VAR to the truncated power of two of sizes up to eight bytes. */ 113 114 #define md_relax_frag(SEG, FRAGP, STRETCH) \ 115 msp430_relax_frag (SEG, FRAGP, STRETCH) 116 extern long msp430_relax_frag (segT, fragS *, long); 117 118 #define TC_FORCE_RELOCATION_LOCAL(FIX) \ 119 msp430_force_relocation_local(FIX) 120 extern int msp430_force_relocation_local(struct fix *); 121 122 123 extern int msp430_enable_relax; 124 extern int msp430_enable_polys; 125