| /* 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 */ |
| |
| #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) |
| /* Declare the functions with the unused attribute to avoid warnings. */ |
| static INLINE unsigned int assemble_3 (unsigned int) |
| __attribute__ ((__unused__)); |
| static INLINE void dis_assemble_3 (unsigned int, unsigned int *) |
| __attribute__ ((__unused__)); |
| static INLINE unsigned int assemble_12 (unsigned int, unsigned int) |
| __attribute__ ((__unused__)); |
| static INLINE void dis_assemble_12 (unsigned int, unsigned int *, |
| unsigned int *) |
| __attribute__ ((__unused__)); |
| static INLINE unsigned long assemble_17 (unsigned int, unsigned int, |
| unsigned int) |
| __attribute__ ((__unused__)); |
| static INLINE void dis_assemble_17 (unsigned int, unsigned int *, |
| unsigned int *, unsigned int *) |
| __attribute__ ((__unused__)); |
| static INLINE void dis_assemble_22 (unsigned int, unsigned int *, |
| unsigned int *, unsigned int *, |
| unsigned int *) |
| __attribute__ ((__unused__)); |
| static INLINE unsigned long assemble_21 (unsigned int) |
| __attribute ((__unused__)); |
| static INLINE void dis_assemble_21 (unsigned int, unsigned int *) |
| __attribute__ ((__unused__)); |
| static INLINE unsigned long sign_extend (unsigned int, unsigned int) |
| __attribute__ ((__unused__)); |
| static INLINE unsigned int ones (int) __attribute ((__unused__)); |
| static INLINE void sign_unext (unsigned int, unsigned int, unsigned int *) |
| __attribute__ ((__unused__)); |
| static INLINE unsigned long low_sign_extend (unsigned int, unsigned int) |
| __attribute__ ((__unused__)); |
| static INLINE void low_sign_unext (unsigned int, unsigned int, unsigned int *) |
| __attribute__ ((__unused__)); |
| static INLINE unsigned long hppa_field_adjust (unsigned long, unsigned long, |
| unsigned short) |
| __attribute__ ((__unused__)); |
| static INLINE int bfd_hppa_insn2fmt (unsigned long) |
| __attribute__ ((__unused__)); |
| static INLINE unsigned long hppa_rebuild_insn (bfd *, unsigned long, |
| unsigned long, unsigned long) |
| __attribute__ ((__unused__)); |
| #endif /* gcc 2.7 or higher */ |
| |
| |
| /* The PA instruction set variants. */ |
| enum pa_arch {pa10 = 10, pa11 = 11, pa20 = 20}; |
| |
| /* 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) ((((int)(a)) << 10) >> 10) |
| #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{1} 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. |
| */ |
| |
| static INLINE unsigned long |
| sign_extend (x, len) |
| unsigned int x, len; |
| { |
| return (int)(x >> (len - 1) ? (-1 << len) | x : x); |
| } |
| |
| 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 void |
| dis_assemble_3 (x, r) |
| unsigned int x; |
| unsigned int *r; |
| { |
| *r = (((x & 4) >> 2) | ((x & 3) << 1)) & 7; |
| } |
| |
| static INLINE unsigned int |
| assemble_6 (x, y) |
| unsigned int x, y; |
| { |
| return (((x & 0x1) << 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 void |
| dis_assemble_12 (as12, x, y) |
| unsigned int as12; |
| unsigned int *x, *y; |
| { |
| *y = (as12 & 0x800) >> 11; |
| *x = ((as12 & 0x3ff) << 1) | ((as12 & 0x400) >> 10); |
| } |
| |
| static INLINE unsigned long |
| 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 long |
| 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 long |
| assemble_17 (x, y, z) |
| unsigned int x, y, z; |
| { |
| unsigned long 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 void |
| dis_assemble_17 (as17, x, y, z) |
| unsigned int as17; |
| unsigned int *x, *y, *z; |
| { |
| |
| *z = (as17 & 0x10000) >> 16; |
| *x = (as17 & 0x0f800) >> 11; |
| *y = (((as17 & 0x00400) >> 10) | ((as17 & 0x3ff) << 1)) & 0x7ff; |
| } |
| |
| static INLINE void |
| dis_assemble_22 (as22, a, b, c, d) |
| unsigned int as22; |
| unsigned int *a, *b, *c, *d; |
| { |
| |
| *d = (as22 & 0x200000) >> 21; |
| *a = (as22 & 0x1f0000) >> 16; |
| *b = (as22 & 0x0f800) >> 11; |
| *c = (((as22 & 0x00400) >> 10) | ((as22 & 0x3ff) << 1)) & 0x7ff; |
| } |
| |
| static INLINE unsigned long |
| assemble_21 (x) |
| unsigned int x; |
| { |
| unsigned long temp; |
| |
| temp = ((x & 1) << 20) | |
| ((x & 0xffe) << 8) | |
| ((x & 0xc000) >> 7) | |
| ((x & 0x1f0000) >> 14) | |
| ((x & 0x003000) >> 12); |
| return temp & 0x1fffff; |
| } |
| |
| static INLINE unsigned long |
| assemble_22 (a,b,c,d) |
| unsigned int a,b,c,d; |
| { |
| unsigned long temp; |
| |
| temp = CATENATE (CATENATE (d, 1, a, 5), 6, |
| CATENATE (b, 5, ELEVEN (c), 11), 16); |
| |
| return sign_extend (temp, 22); |
| } |
| |
| static INLINE void |
| dis_assemble_21 (as21, x) |
| unsigned int as21, *x; |
| { |
| unsigned long temp; |
| |
| |
| temp = (as21 & 0x100000) >> 20; |
| temp |= (as21 & 0x0ffe00) >> 8; |
| temp |= (as21 & 0x000180) << 7; |
| temp |= (as21 & 0x00007c) << 14; |
| temp |= (as21 & 0x000003) << 12; |
| *x = temp; |
| } |
| |
| static INLINE unsigned int |
| ones (n) |
| int n; |
| { |
| unsigned int len_ones; |
| int i; |
| |
| i = 0; |
| len_ones = 0; |
| while (i < n) |
| { |
| len_ones = (len_ones << 1) | 1; |
| i++; |
| } |
| |
| return len_ones; |
| } |
| |
| static INLINE void |
| sign_unext (x, len, result) |
| unsigned int x, len; |
| unsigned int *result; |
| { |
| unsigned int len_ones; |
| |
| len_ones = ones (len); |
| |
| *result = x & len_ones; |
| } |
| |
| static INLINE unsigned long |
| low_sign_extend (x, len) |
| unsigned int x, len; |
| { |
| return (int)((x & 0x1 ? (-1 << (len - 1)) : 0) | x >> 1); |
| } |
| |
| static INLINE void |
| low_sign_unext (x, len, result) |
| unsigned int x, len; |
| unsigned int *result; |
| { |
| unsigned int temp; |
| unsigned int sign; |
| unsigned int rest; |
| unsigned int one_bit_at_len; |
| unsigned int len_ones; |
| |
| len_ones = ones (len); |
| one_bit_at_len = 1 << (len - 1); |
| |
| sign_unext (x, len, &temp); |
| sign = temp & one_bit_at_len; |
| sign >>= (len - 1); |
| |
| rest = temp & (len_ones ^ one_bit_at_len); |
| rest <<= 1; |
| |
| *result = rest | sign; |
| } |
| |
| /* Handle field selectors for PA instructions. */ |
| |
| static INLINE unsigned long |
| hppa_field_adjust (value, constant_value, r_field) |
| unsigned long value; |
| unsigned long constant_value; |
| unsigned short r_field; |
| { |
| switch (r_field) |
| { |
| case e_fsel: /* F : no change */ |
| case e_nsel: /* N : no change */ |
| value += constant_value; |
| break; |
| |
| case e_lssel: /* LS : if (bit 21) then add 0x800 |
| arithmetic shift right 11 bits */ |
| value += constant_value; |
| if (value & 0x00000400) |
| value += 0x800; |
| value = (value & 0xfffff800) >> 11; |
| break; |
| |
| case e_rssel: /* RS : Sign extend from bit 21 */ |
| value += constant_value; |
| if (value & 0x00000400) |
| value |= 0xfffff800; |
| else |
| value &= 0x7ff; |
| break; |
| |
| case e_lsel: /* L : Arithmetic shift right 11 bits */ |
| case e_nlsel: /* NL : Arithmetic shift right 11 bits */ |
| value += constant_value; |
| value = (value & 0xfffff800) >> 11; |
| break; |
| |
| case e_rsel: /* R : Set bits 0-20 to zero */ |
| value += constant_value; |
| value = value & 0x7ff; |
| break; |
| |
| case e_ldsel: /* LD : Add 0x800, arithmetic shift |
| right 11 bits */ |
| value += constant_value; |
| value += 0x800; |
| value = (value & 0xfffff800) >> 11; |
| break; |
| |
| case e_rdsel: /* RD : Set bits 0-20 to one */ |
| value += constant_value; |
| value |= 0xfffff800; |
| break; |
| |
| case e_lrsel: /* LR : L with "rounded" constant */ |
| case e_nlrsel: /* NLR : NL with "rounded" constant */ |
| value = value + ((constant_value + 0x1000) & 0xffffe000); |
| value = (value & 0xfffff800) >> 11; |
| break; |
| |
| case e_rrsel: /* RR : R with "rounded" constant */ |
| value = value + ((constant_value + 0x1000) & 0xffffe000); |
| value = (value & 0x7ff) + constant_value - ((constant_value + 0x1000) & 0xffffe000); |
| break; |
| |
| default: |
| abort (); |
| } |
| return value; |
| |
| } |
| |
| /* PA-RISC OPCODES */ |
| #define get_opcode(insn) ((insn) & 0xfc000000) >> 26 |
| |
| /* 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 FDLW 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 long insn; |
| { |
| int fmt = -1; |
| unsigned char op = get_opcode (insn); |
| |
| switch (op) |
| { |
| case ADDI: |
| case ADDIT: |
| case SUBI: |
| fmt = 11; |
| break; |
| 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: |
| fmt = 12; |
| break; |
| case LDO: |
| case LDB: |
| case LDH: |
| case LDW: |
| case LDWM: |
| case STB: |
| case STH: |
| case STW: |
| case STWM: |
| fmt = 14; |
| break; |
| case LDWL: |
| case STWL: |
| case FDLW: |
| 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 10a format. */ |
| fmt = -11; |
| break; |
| case LDD: |
| case STD: |
| fmt = 10; |
| break; |
| case BL: |
| case BE: |
| case BLE: |
| if ((insn & 0x00008000) == 0x00008000) |
| return 22; |
| fmt = 17; |
| break; |
| case LDIL: |
| case ADDIL: |
| fmt = 21; |
| break; |
| default: |
| fmt = 32; |
| break; |
| } |
| return fmt; |
| } |
| |
| |
| /* Insert VALUE into INSN using R_FORMAT to determine exactly what |
| bits to change. */ |
| |
| static INLINE unsigned long |
| hppa_rebuild_insn (abfd, insn, value, r_format) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| unsigned long insn; |
| unsigned long value; |
| unsigned long r_format; |
| { |
| unsigned long const_part; |
| unsigned long rebuilt_part; |
| |
| switch (r_format) |
| { |
| case 11: |
| { |
| unsigned w1, w; |
| |
| const_part = insn & 0xffffe002; |
| dis_assemble_12 (value, &w1, &w); |
| rebuilt_part = (w1 << 2) | w; |
| return const_part | rebuilt_part; |
| } |
| |
| case 12: |
| { |
| unsigned w1, w; |
| |
| const_part = insn & 0xffffe002; |
| dis_assemble_12 (value, &w1, &w); |
| rebuilt_part = (w1 << 2) | w; |
| return const_part | rebuilt_part; |
| } |
| |
| case 14: |
| { |
| unsigned int ext; |
| |
| const_part = insn & 0xffffc000; |
| low_sign_unext (value, 14, &ext); |
| return const_part | ext; |
| } |
| |
| case 17: |
| { |
| unsigned w1, w2, w; |
| |
| const_part = insn & 0xffe0e002; |
| dis_assemble_17 (value, &w1, &w2, &w); |
| rebuilt_part = (w2 << 2) | (w1 << 16) | w; |
| return const_part | rebuilt_part; |
| } |
| |
| case 21: |
| { |
| unsigned int w; |
| |
| const_part = insn & 0xffe00000; |
| dis_assemble_21 (value, &w); |
| return const_part | w; |
| } |
| |
| case 32: |
| const_part = 0; |
| return value; |
| |
| default: |
| abort (); |
| } |
| return insn; |
| } |
| |
| #endif /* _HPPA_H */ |