/* HP PA-RISC SOM object file format: definitions internal to BFD.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Copyright (C) 1990, 91, 92, 93, 94 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 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 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.
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <sys/core.h>
-#include <sys/utsname.h>
+#ifndef _HPPA_H
+#define _HPPA_H
#define BYTES_IN_WORD 4
+#define PA_PAGESIZE 0x1000
-struct header;
-struct som_exec_auxhdr;
-struct subspace_dictionary;
+#ifndef INLINE
+#ifdef __GNUC__
+#define INLINE inline
+#else
+#define INLINE
+#endif /* GNU C? */
+#endif /* INLINE */
-#define FILE_HDR_SIZE sizeof(struct header)
-#define AUX_HDR_SIZE sizeof(struct som_exec_auxhdr)
+/* 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_PSEL = 0x9,
+ R_HPPA_LPSEL = 0xa,
+ R_HPPA_RPSEL = 0xb,
+ R_HPPA_TSEL = 0xc,
+ R_HPPA_LTSEL = 0xd,
+ R_HPPA_RTSEL = 0xe
+ };
+
+/* /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_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_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))
+
+/* Some functions to manipulate PA instructions. */
+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;
+}
-typedef struct hppa_symbol
+static INLINE unsigned int
+assemble_12 (x, y)
+ unsigned int x, y;
{
- asymbol symbol;
- short desc;
- char other;
- unsigned char type;
-} hppa_symbol_type;
+ return (((y & 1) << 11) | ((x & 1) << 10) | ((x & 0x7fe) >> 1)) & 0xfff;
+}
-struct hppadata
+static INLINE void
+dis_assemble_12 (as12, x, y)
+ unsigned int as12;
+ unsigned int *x, *y;
{
- struct header *file_hdr;
- struct som_exec_auxhdr *aux_hdr;
- hppa_symbol_type *symbols;
+ *y = (as12 & 0x800) >> 11;
+ *x = ((as12 & 0x3ff) << 1) | ((as12 & 0x400) >> 10);
+}
- /* We remember these offsets so that after check_file_format, we have
- no dependencies on the particular format of the exec_hdr. */
+static INLINE unsigned long
+assemble_17 (x, y, z)
+ unsigned int x, y, z;
+{
+ unsigned long temp;
- file_ptr sym_filepos;
- file_ptr str_filepos;
+ temp = ((z & 1) << 16) |
+ ((x & 0x1f) << 11) |
+ ((y & 1) << 10) |
+ ((y & 0x7fe) >> 1);
+ return temp & 0x1ffff;
+}
- unsigned stringtab_size;
+static INLINE void
+dis_assemble_17 (as17, x, y, z)
+ unsigned int as17;
+ unsigned int *x, *y, *z;
+{
- /* Size of a symbol table entry in external form */
- unsigned hp_symbol_entry_size;
-};
+ *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;
-struct hppa_data_struct {
- struct hppadata a;
-};
+ temp = ((x & 1) << 20) |
+ ((x & 0xffe) << 8) |
+ ((x & 0xc000) >> 7) |
+ ((x & 0x1f0000) >> 14) |
+ ((x & 0x003000) >> 12);
+ return temp & 0x1fffff;
+}
-#define padata(bfd) ((bfd)->tdata.hppa_data->a)
-#define obj_file_hdr(bfd) (padata(bfd).file_hdr)
-#define obj_aux_hdr(bfd) (padata(bfd).aux_hdr)
-#define obj_pa_symbols(bfd) (padata(bfd).symbols)
-#define obj_sym_filepos(bfd) (padata(bfd).sym_filepos)
-#define obj_str_filepos(bfd) (padata(bfd).str_filepos)
-#define obj_stringtab_size(bfd) (padata(bfd).stringtab_size)
+static INLINE void
+dis_assemble_21 (as21, x)
+ unsigned int as21, *x;
+{
+ unsigned long temp;
-/* We take the address of the first element of an asymbol to ensure that the
- macro is only ever applied to an asymbol */
-#define hppa_symbol(asymbol) ((hppa_symbol_type *)(&(asymbol)->the_bfd))
+ temp = (as21 & 0x100000) >> 20;
+ temp |= (as21 & 0x0ffe00) >> 8;
+ temp |= (as21 & 0x000180) << 7;
+ temp |= (as21 & 0x00007c) << 14;
+ temp |= (as21 & 0x000003) << 12;
+ *x = temp;
+}
-/* These are stored in the bfd's tdata */
+static INLINE unsigned long
+sign_ext (x, len)
+ unsigned int x, len;
+{
+ return (x << (32 - len)) >> (32 - len);
+}
-struct hppa_core_struct
+static INLINE unsigned int
+ones (n)
+ int n;
{
- int sig;
- char cmd[MAXCOMLEN + 1];
- asection *data_section;
- asection *stack_section;
- asection *reg_section;
-};
+ unsigned int len_ones;
+ int i;
-#define core_hdr(bfd) ((bfd)->tdata.hppa_core_data)
-#define core_signal(bfd) (core_hdr(bfd)->sig)
-#define core_command(bfd) (core_hdr(bfd)->cmd)
-#define core_datasec(bfd) (core_hdr(bfd)->data_section)
-#define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
-#define core_regsec(bfd) (core_hdr(bfd)->reg_section)
+ i = 0;
+ len_ones = 0;
+ while (i < n)
+ {
+ len_ones = (len_ones << 1) | 1;
+ i++;
+ }
-/* HP PA-RISC relocation types */
+ return len_ones;
+}
-enum hppa_reloc_field_selector_type
+static INLINE void
+sign_unext (x, len, result)
+ unsigned int x, len;
+ unsigned int *result;
{
- 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_PSEL = 0x9, /* P' : procedure address for shlib's */
- R_HPPA_LPSEL = 0xa, /* LP' : L' for procedure addresses */
- R_HPPA_RPSEL = 0xb, /* RP' : R' for procedure addresses */
-
- R_HPPA_TSEL = 0xc, /* T' : DLT-relative offset for shlib's */
- R_HPPA_LTSEL = 0xd, /* LT' : L' for DLT-relative offsets */
- R_HPPA_RTSEL = 0xe /* RT' : R' for DLT-relative offsets */
-
-};
+ unsigned int len_ones;
-/* for compatibility */
-enum hppa_reloc_field_selector_type_alt
+ len_ones = ones (len);
+
+ *result = x & len_ones;
+}
+
+static INLINE unsigned long
+low_sign_ext (x, len)
+ unsigned int x, len;
{
- 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_psel = R_HPPA_PSEL, /* P' : procedure address for shlib's */
- e_lpsel = R_HPPA_LPSEL, /* LP' : L' for procedure addresses */
- e_rpsel = R_HPPA_RPSEL, /* RP' : R' for procedure addresses */
-
- e_tsel = R_HPPA_TSEL, /* T' : DLT-relative offset for shlib's */
- e_ltsel = R_HPPA_LTSEL, /* LT' : L' for DLT-relative offsets */
- e_rtsel = R_HPPA_RTSEL /* RT' : R' for DLT-relative offsets */
-};
+ unsigned int temp1, temp2;
+ unsigned int len_ones;
-enum hppa_reloc_expr_type
+ len_ones = ones (len);
+
+ temp1 = (x & 1) << (len - 1);
+ temp2 = ((x & 0xfffffffe) & len_ones) >> 1;
+ return sign_ext ((temp1 | temp2), len);
+}
+
+static INLINE void
+low_sign_unext (x, len, result)
+ unsigned int x, len;
+ unsigned int *result;
{
- 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
-};
+ unsigned int temp;
+ unsigned int sign;
+ unsigned int rest;
+ unsigned int one_bit_at_len;
+ unsigned int len_ones;
-/* for compatibility */
-enum hppa_reloc_expr_type_alt
+ 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;
{
- 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
-};
+ switch (r_field)
+ {
+ case e_fsel: /* F : no change */
+ break;
+
+ case e_lssel: /* LS : if (bit 21) then add 0x800
+ arithmetic shift right 11 bits */
+ if (value & 0x00000400)
+ value += 0x800;
+ value = (value & 0xfffff800) >> 11;
+ break;
+
+ case e_rssel: /* RS : Sign extend from bit 21 */
+ if (value & 0x00000400)
+ value |= 0xfffff800;
+ else
+ value &= 0x7ff;
+ break;
+
+ case e_lsel: /* L : Arithmetic shift right 11 bits */
+ value = (value & 0xfffff800) >> 11;
+ break;
+
+ case e_rsel: /* R : Set bits 0-20 to zero */
+ value = value & 0x7ff;
+ break;
+
+ case e_ldsel: /* LD : Add 0x800, arithmetic shift
+ right 11 bits */
+ value += 0x800;
+ value = (value & 0xfffff800) >> 11;
+ break;
+
+ case e_rdsel: /* RD : Set bits 0-20 to one */
+ value |= 0xfffff800;
+ break;
+
+ case e_lrsel: /* LR : L 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 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 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:
+ const_part = insn & 0xffffc000;
+ low_sign_unext (value, 14, &rebuilt_part);
+ return const_part | rebuilt_part;
+
+ 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:
+ const_part = insn & 0xffe00000;
+ dis_assemble_21 (value, &rebuilt_part);
+ return const_part | rebuilt_part;
+
+ case 32:
+ const_part = 0;
+ return value;
+
+ default:
+ abort ();
+ }
+ return insn;
+}
+
+#endif /* _HPPA_H */
projects / deliverable / binutils-gdb.git / blobdiff