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+/* HP PA-RISC SOM object file format: definitions internal to BFD.
+ Copyright (C) 1990, 91, 92, 93, 94 , 95, 1996 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_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 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 char 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
+ };
+
+/* /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
+ };
+
+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 (((x & 1) << 2) | ((x & 6) >> 1)) & 7;
+}
+
+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 /* PA 2.0 */
+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 /* PA 2.0 */
+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 /* PA 2.0 */
+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;
+ int q;
+
+ temp = CATENATE( CATENATE( z, q,
+ x, q), q,
+ CATENATE( GET_BIT( y, 1 ), 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 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 /* PA 2.0 */
+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
+
+
+/* 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 char
+bfd_hppa_insn2fmt (insn)
+ unsigned long insn;
+{
+ char 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:
+ 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 BL:
+ case BE:
+ case BLE:
+ 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;
+ 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 */
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