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Diffstat (limited to 'bfd/libhppa.h')
| -rw-r--r-- | bfd/libhppa.h | 712 |
1 files changed, 0 insertions, 712 deletions
diff --git a/bfd/libhppa.h b/bfd/libhppa.h deleted file mode 100644 index 7a8af9a385d..00000000000 --- a/bfd/libhppa.h +++ /dev/null @@ -1,712 +0,0 @@ -/* HP PA-RISC SOM object file format: definitions internal to BFD. - Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 98, 99, 2000 - Free Software Foundation, Inc. - - Contributed by the Center for Software Science at the - University of Utah (pa-gdb-bugs@cs.utah.edu). - - This file is part of BFD, the Binary File Descriptor library. - - This program 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 of the License, or - (at your option) any later version. - - This program 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 this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _HPPA_H -#define _HPPA_H - -#define BYTES_IN_WORD 4 -#define PA_PAGESIZE 0x1000 - -#ifndef INLINE -#ifdef __GNUC__ -#define INLINE inline -#else -#define INLINE -#endif /* GNU C? */ -#endif /* INLINE */ - -/* The PA instruction set variants. */ -enum pa_arch {pa10 = 10, pa11 = 11, pa20 = 20, pa20w = 25}; - -/* HP PA-RISC relocation types */ - -enum hppa_reloc_field_selector_type - { - R_HPPA_FSEL = 0x0, - R_HPPA_LSSEL = 0x1, - R_HPPA_RSSEL = 0x2, - R_HPPA_LSEL = 0x3, - R_HPPA_RSEL = 0x4, - R_HPPA_LDSEL = 0x5, - R_HPPA_RDSEL = 0x6, - R_HPPA_LRSEL = 0x7, - R_HPPA_RRSEL = 0x8, - R_HPPA_NSEL = 0x9, - R_HPPA_NLSEL = 0xa, - R_HPPA_NLRSEL = 0xb, - R_HPPA_PSEL = 0xc, - R_HPPA_LPSEL = 0xd, - R_HPPA_RPSEL = 0xe, - R_HPPA_TSEL = 0xf, - R_HPPA_LTSEL = 0x10, - R_HPPA_RTSEL = 0x11, - R_HPPA_LTPSEL = 0x12, - R_HPPA_RTPSEL = 0x13 - }; - -/* /usr/include/reloc.h defines these to constants. We want to use - them in enums, so #undef them before we start using them. We might - be able to fix this another way by simply managing not to include - /usr/include/reloc.h, but currently GDB picks up these defines - somewhere. */ -#undef e_fsel -#undef e_lssel -#undef e_rssel -#undef e_lsel -#undef e_rsel -#undef e_ldsel -#undef e_rdsel -#undef e_lrsel -#undef e_rrsel -#undef e_nsel -#undef e_nlsel -#undef e_nlrsel -#undef e_psel -#undef e_lpsel -#undef e_rpsel -#undef e_tsel -#undef e_ltsel -#undef e_rtsel -#undef e_one -#undef e_two -#undef e_pcrel -#undef e_con -#undef e_plabel -#undef e_abs - -/* for compatibility */ -enum hppa_reloc_field_selector_type_alt - { - e_fsel = R_HPPA_FSEL, - e_lssel = R_HPPA_LSSEL, - e_rssel = R_HPPA_RSSEL, - e_lsel = R_HPPA_LSEL, - e_rsel = R_HPPA_RSEL, - e_ldsel = R_HPPA_LDSEL, - e_rdsel = R_HPPA_RDSEL, - e_lrsel = R_HPPA_LRSEL, - e_rrsel = R_HPPA_RRSEL, - e_nsel = R_HPPA_NSEL, - e_nlsel = R_HPPA_NLSEL, - e_nlrsel = R_HPPA_NLRSEL, - e_psel = R_HPPA_PSEL, - e_lpsel = R_HPPA_LPSEL, - e_rpsel = R_HPPA_RPSEL, - e_tsel = R_HPPA_TSEL, - e_ltsel = R_HPPA_LTSEL, - e_rtsel = R_HPPA_RTSEL, - e_ltpsel = R_HPPA_LTPSEL, - e_rtpsel = R_HPPA_RTPSEL - }; - -enum hppa_reloc_expr_type - { - R_HPPA_E_ONE = 0, - R_HPPA_E_TWO = 1, - R_HPPA_E_PCREL = 2, - R_HPPA_E_CON = 3, - R_HPPA_E_PLABEL = 7, - R_HPPA_E_ABS = 18 - }; - -/* for compatibility */ -enum hppa_reloc_expr_type_alt - { - e_one = R_HPPA_E_ONE, - e_two = R_HPPA_E_TWO, - e_pcrel = R_HPPA_E_PCREL, - e_con = R_HPPA_E_CON, - e_plabel = R_HPPA_E_PLABEL, - e_abs = R_HPPA_E_ABS - }; - - -/* Relocations for function calls must be accompanied by parameter - relocation bits. These bits describe exactly where the caller has - placed the function's arguments and where it expects to find a return - value. - - Both ELF and SOM encode this information within the addend field - of the call relocation. (Note this could break very badly if one - was to make a call like bl foo + 0x12345678). - - The high order 10 bits contain parameter relocation information, - the low order 22 bits contain the constant offset. */ - -#define HPPA_R_ARG_RELOC(a) \ - (((a) >> 22) & 0x3ff) -#define HPPA_R_CONSTANT(a) \ - ((((bfd_signed_vma)(a)) << (BFD_ARCH_SIZE-22)) >> (BFD_ARCH_SIZE-22)) -#define HPPA_R_ADDEND(r, c) \ - (((r) << 22) + ((c) & 0x3fffff)) -#define HPPA_WIDE (0) /* PSW W-bit, need to check! FIXME */ - -/* These macros get bit fields using HP's numbering (MSB = 0), - * but note that "MASK" assumes that the LSB bits are what's - * wanted. - */ -#ifndef GET_FIELD -#define GET_FIELD(X, FROM, TO) \ - ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1)) -#endif -#define GET_BIT(X, WHICH) \ - GET_FIELD (X, WHICH, WHICH) - -#define MASK(SIZE) \ - (~((-1) << SIZE)) - -#define CATENATE(X, XSIZE, Y, YSIZE) \ - (((X & MASK (XSIZE)) << YSIZE) | (Y & MASK (YSIZE))) - -#define ELEVEN(X) \ - CATENATE (GET_BIT (X, 10), 1, GET_FIELD (X, 0, 9), 10) - -/* Some functions to manipulate PA instructions. */ - -/* NOTE: these use the HP convention that f{0} is the _left_ most - * bit (MSB) of f; they sometimes have to impose an assumption - * about the size of a field; and as far as I can tell, most - * aren't used. - */ - -#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) -/* Declare the functions with the unused attribute to avoid warnings. */ -static INLINE unsigned int sign_extend (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int low_sign_extend (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int assemble_3 (unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int assemble_6 (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int assemble_12 (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int assemble_16 (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int assemble_16a (unsigned int, unsigned int, - unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int assemble_17 (unsigned int, unsigned int, - unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int assemble_21 (unsigned int) - __attribute ((__unused__)); - -static INLINE unsigned int sign_unext (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int low_sign_unext (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int re_assemble_3 (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int re_assemble_12 (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int re_assemble_16 (unsigned int, unsigned int, int) - __attribute__ ((__unused__)); -static INLINE unsigned int re_assemble_17 (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int re_assemble_22 (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int re_assemble_21 (unsigned int, unsigned int) - __attribute__ ((__unused__)); -static INLINE bfd_signed_vma hppa_field_adjust (bfd_signed_vma, bfd_signed_vma, - enum hppa_reloc_field_selector_type_alt) - __attribute__ ((__unused__)); -static INLINE int bfd_hppa_insn2fmt (unsigned int) - __attribute__ ((__unused__)); -static INLINE unsigned int hppa_rebuild_insn (bfd *, unsigned int, - unsigned int, unsigned int) - __attribute__ ((__unused__)); -#endif /* gcc 2.7 or higher */ - - -/* The *sign_extend and assemble_* functions are used to assemble - various bitfields taken from an instruction and return the - resulting immediate value. They correspond to functions by the - same name in HP's PA-RISC 2.0 Architecture Reference Manual. */ - -static INLINE unsigned int -sign_extend (x, len) - unsigned int x, len; -{ - unsigned int signbit = (1 << (len - 1)); - unsigned int mask = (signbit << 1) - 1; - return ((x & mask) ^ signbit) - signbit; -} - -static INLINE unsigned int -low_sign_extend (x, len) - unsigned int x, len; -{ - return (x >> 1) - ((x & 1) << (len - 1)); -} - -static INLINE unsigned int -assemble_3 (x) - unsigned int x; -{ - return CATENATE (GET_BIT (x, 2), 1, GET_FIELD (x, 0, 1), 2); -} - -static INLINE unsigned int -assemble_6 (x, y) - unsigned int x, y; -{ - return (((x & 1) << 5) + (32 - (y & 0x1f))); -} - -static INLINE unsigned int -assemble_12 (x, y) - unsigned int x, y; -{ - return CATENATE (CATENATE (y, 1, GET_BIT (x, 10), 1), 2, - GET_FIELD (x, 0, 9), 9); -} - -static INLINE unsigned int -assemble_16 (x, y) - unsigned int x, y; -{ - /* Depends on PSW W-bit !*/ - unsigned int temp; - - if (HPPA_WIDE) - temp = CATENATE (CATENATE (GET_BIT (y, 13), 1, - (GET_BIT (y, 13) ^ GET_BIT (x, 0)), 1), 2, - CATENATE ((GET_BIT (y, 13) ^ GET_BIT (x, 1)), 1, - GET_FIELD (y, 0, 12), 13), 14); - else - temp = CATENATE (CATENATE (GET_BIT (y, 13), 1, GET_BIT (y, 13), 1), 2, - CATENATE (GET_BIT (y, 13), 1, GET_FIELD (y, 0, 12), 13), 14); - - return sign_extend (temp, 16); -} - -static INLINE unsigned int -assemble_16a (x, y, z) - unsigned int x, y, z; -{ - /* Depends on PSW W-bit !*/ - unsigned int temp; - - if (HPPA_WIDE) - temp = CATENATE (CATENATE (z, 1, (z ^ GET_BIT (x, 0)), 1), 2, - CATENATE ((z ^ GET_BIT (x, 1)), 1, y, 11), 12); - else - temp = CATENATE (CATENATE (z, 1, z, 1), 2, CATENATE (z, 1, y, 11), 12); - - return sign_extend ((temp << 2), 16); -} - -static INLINE unsigned int -assemble_17 (x, y, z) - unsigned int x, y, z; -{ - unsigned int temp; - - temp = CATENATE (CATENATE (z, 1, x, 5), 6, - CATENATE (GET_BIT (y, 10), 1, GET_FIELD (y, 0, 9), 10), 11); - - return temp; -} - -static INLINE unsigned int -assemble_21 (x) - unsigned int x; -{ - unsigned int temp; - - temp = (( (x & 0x000001) << 20) - | ((x & 0x000ffe) << 8) - | ((x & 0x003000) >> 12) - | ((x & 0x00c000) >> 7) - | ((x & 0x1f0000) >> 14)); - return temp; -} - -static INLINE unsigned int -assemble_22 (a,b,c,d) - unsigned int a,b,c,d; -{ - unsigned int temp; - - temp = CATENATE (CATENATE (d, 1, a, 5), 6, - CATENATE (b, 5, ELEVEN (c), 11), 16); - - return sign_extend (temp, 22); -} - - -/* The re_assemble_* functions splice together an opcode and an - immediate value. pa-risc uses all sorts of weird bitfields in the - instruction to hold the value. */ - -static INLINE unsigned int -sign_unext (x, len) - unsigned int x, len; -{ - unsigned int len_ones; - - len_ones = ((unsigned int) 1 << len) - 1; - - return x & len_ones; -} - -static INLINE unsigned int -low_sign_unext (x, len) - unsigned int x, len; -{ - unsigned int temp; - unsigned int sign; - - sign = (x >> (len-1)) & 1; - - temp = sign_unext (x, len-1); - - return (temp << 1) | sign; -} - -static INLINE unsigned int -re_assemble_3 (insn, as3) - unsigned int insn; - unsigned int as3; -{ - return (insn - | ((as3 & 4) << (13-2)) - | ((as3 & 3) << (13+1))); -} - -static INLINE unsigned int -re_assemble_12 (insn, as12) - unsigned int insn; - unsigned int as12; -{ - return (insn - | ((as12 & 0x800) >> 11) - | ((as12 & 0x400) >> (10 - 2)) - | ((as12 & 0x3ff) << (1 + 2))); -} - -static INLINE unsigned int -re_assemble_16 (insn, as16, wide) - unsigned int insn; - unsigned int as16; - int wide; -{ - unsigned int s, t; - - if (wide) - { - /* Unusual 16-bit encoding. */ - t = (as16 << 1) & 0xffff; - s = (as16 & 0x8000); - return insn | (t ^ s ^ (s >> 1)) | (s >> 15); - } - else - { - /* Standard 14-bit encoding. */ - t = (as16 << 1) & 0x3fff; - s = (as16 & 0x2000); - return insn | t | (s >> 13); - } -} - -static INLINE unsigned int -re_assemble_17 (insn, as17) - unsigned int insn; - unsigned int as17; -{ - return (insn - | ((as17 & 0x10000) >> 16) - | ((as17 & 0x0f800) << (16 - 11)) - | ((as17 & 0x00400) >> (10 - 2)) - | ((as17 & 0x003ff) << (1 + 2))); -} - -static INLINE unsigned int -re_assemble_21 (insn, as21) - unsigned int insn; - unsigned int as21; -{ - return (insn - | ((as21 & 0x100000) >> 20) - | ((as21 & 0x0ffe00) >> 8) - | ((as21 & 0x000180) << 7) - | ((as21 & 0x00007c) << 14) - | ((as21 & 0x000003) << 12)); -} - -static INLINE unsigned int -re_assemble_22 (insn, as22) - unsigned int insn; - unsigned int as22; -{ - return (insn - | ((as22 & 0x200000) >> 21) - | ((as22 & 0x1f0000) << (21 - 16)) - | ((as22 & 0x00f800) << (16 - 11)) - | ((as22 & 0x000400) >> (10 - 2)) - | ((as22 & 0x0003ff) << (1 + 2))); -} - - -/* Handle field selectors for PA instructions. - The L and R (and LS, RS etc.) selectors are used in pairs to form a - full 32 bit address. eg. - - LDIL L'start,%r1 ; put left part into r1 - LDW R'start(%r1),%r2 ; add r1 and right part to form address - - This function returns sign extended values in all cases. -*/ - -static INLINE bfd_signed_vma -hppa_field_adjust (sym_val, addend, r_field) - bfd_signed_vma sym_val; - bfd_signed_vma addend; - enum hppa_reloc_field_selector_type_alt r_field; -{ - bfd_signed_vma value; - - value = sym_val + addend; - switch (r_field) - { - case e_fsel: - case e_nsel: - /* F: No change. */ - break; - - case e_lsel: - case e_nlsel: - /* L: Select top 21 bits. */ - value = value >> 11; - break; - - case e_rsel: - /* R: Select bottom 11 bits. */ - value = value & 0x7ff; - break; - - case e_lssel: - /* LS: Round to nearest multiple of 2048 then select top 21 bits. */ - value = value + 0x400; - value = value >> 11; - break; - - case e_rssel: - /* RS: Select bottom 11 bits for LS. - We need to return a value such that 2048 * LS'x + RS'x == x. - ie. RS'x = x - ((x + 0x400) & -0x800) - this is just a sign extension from bit 21. */ - value = ((value & 0x7ff) ^ 0x400) - 0x400; - break; - - case e_ldsel: - /* LD: Round to next multiple of 2048 then select top 21 bits. - Yes, if we are already on a multiple of 2048, we go up to the - next one. RD in this case will be -2048. */ - value = value + 0x800; - value = value >> 11; - break; - - case e_rdsel: - /* RD: Set bits 0-20 to one. */ - value = value | -0x800; - break; - - case e_lrsel: - case e_nlrsel: - /* LR: L with rounding of the addend to nearest 8k. */ - value = sym_val + ((addend + 0x1000) & -0x2000); - value = value >> 11; - break; - - case e_rrsel: - /* RR: R with rounding of the addend to nearest 8k. - We need to return a value such that 2048 * LR'x + RR'x == x - ie. RR'x = s+a - (s + (((a + 0x1000) & -0x2000) & -0x800)) - . = s+a - ((s & -0x800) + ((a + 0x1000) & -0x2000)) - . = (s & 0x7ff) + a - ((a + 0x1000) & -0x2000) */ - value = (sym_val & 0x7ff) + (((addend & 0x1fff) ^ 0x1000) - 0x1000); - break; - - default: - abort (); - } - return value; -} - -/* PA-RISC OPCODES */ -#define get_opcode(insn) (((insn) >> 26) & 0x3f) - -/* FIXME: this list is incomplete. It should also be an enumerated - type rather than #defines. */ - -#define LDO 0x0d -#define LDB 0x10 -#define LDH 0x11 -#define LDW 0x12 -#define LDWM 0x13 -#define STB 0x18 -#define STH 0x19 -#define STW 0x1a -#define STWM 0x1b -#define COMICLR 0x24 -#define SUBI 0x25 -#define SUBIO 0x25 -#define ADDIT 0x2c -#define ADDITO 0x2c -#define ADDI 0x2d -#define ADDIO 0x2d -#define LDIL 0x08 -#define ADDIL 0x0a - -#define MOVB 0x32 -#define MOVIB 0x33 -#define COMBT 0x20 -#define COMBF 0x22 -#define COMIBT 0x21 -#define COMIBF 0x23 -#define ADDBT 0x28 -#define ADDBF 0x2a -#define ADDIBT 0x29 -#define ADDIBF 0x2b -#define BVB 0x30 -#define BB 0x31 - -#define BL 0x3a -#define BLE 0x39 -#define BE 0x38 - -#define CMPBDT 0x27 -#define CMPBDF 0x2f -#define CMPIBD 0x3b -#define LDD 0x14 -#define STD 0x1c -#define LDWL 0x17 -#define STWL 0x1f -#define FLDW 0x16 -#define FSTW 0x1e - -/* Given a machine instruction, return its format. - - FIXME: opcodes which do not map to a known format - should return an error of some sort. */ - -static INLINE int -bfd_hppa_insn2fmt (insn) - unsigned int insn; -{ - unsigned char op = get_opcode (insn); - - switch (op) - { - case ADDI: - case ADDIT: - case SUBI: - return 11; - - case MOVB: - case MOVIB: - case COMBT: - case COMBF: - case COMIBT: - case COMIBF: - case ADDBT: - case ADDBF: - case ADDIBT: - case ADDIBF: - case BVB: - case BB: - case CMPBDT: - case CMPBDF: - case CMPIBD: - return 12; - - case LDO: - case LDB: - case LDH: - case LDW: - case LDWM: - case STB: - case STH: - case STW: - case STWM: - return 14; - - case LDWL: - case STWL: - case FLDW: - case FSTW: - /* This is a hack. Unfortunately, format 11 is already taken - and we're using integers rather than an enum, so it's hard - to describe the 11a format. */ - return -11; - - case LDD: - case STD: - return 10; - - case BL: - case BE: - case BLE: - if ((insn & 0x00008000) != 0) - return 22; - return 17; - - case LDIL: - case ADDIL: - return 21; - - default: - break; - } - return 32; -} - - -/* Insert VALUE into INSN using R_FORMAT to determine exactly what - bits to change. */ - -static INLINE unsigned int -hppa_rebuild_insn (abfd, insn, value, r_format) - bfd *abfd ATTRIBUTE_UNUSED; - unsigned int insn; - unsigned int value; - unsigned int r_format; -{ - switch (r_format) - { - case 11: return (insn & ~ 0x7ff) | low_sign_unext (value, 11); - case 12: return re_assemble_12 (insn & ~ 0x1ffd, value); - case 14: return (insn & ~ 0x3fff) | low_sign_unext (value, 14); - case 17: return re_assemble_17 (insn & ~ 0x1f1ffd, value); - case 21: return re_assemble_21 (insn & ~ 0x1fffff, value); - case 32: return value; - - default: - abort (); - } - return insn; -} - -#endif /* _HPPA_H */ |