/* 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 , 95, 1996 Free Software Foundation, Inc.
Contributed by the Center for Software Science at the
University of Utah (pa-gdb-bugs@cs.utah.edu).
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. */
+ 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__
#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_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
+ 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_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,
};
+/* 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;
+ return CATENATE (GET_BIT (x, 2), 1, GET_FIELD (x, 0, 1), 2);
}
static INLINE void
}
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 (((y & 1) << 11) | ((x & 1) << 10) | ((x & 0x7fe) >> 1)) & 0xfff;
+ return CATENATE (CATENATE (y, 1, GET_BIT (x, 10), 1), 2,
+ GET_FIELD (x, 0, 9), 9);
}
static INLINE void
}
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 = ((z & 1) << 16) |
- ((x & 0x1f) << 11) |
- ((y & 1) << 10) |
- ((y & 0x7fe) >> 1);
- return temp & 0x1ffff;
+ 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
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;
*x = temp;
}
-static INLINE unsigned long
-sign_ext (x, len)
- unsigned int x, len;
-{
- return (x << (32 - len)) >> (32 - len);
-}
-
static INLINE unsigned int
ones (n)
int n;
}
static INLINE unsigned long
-low_sign_ext (x, len)
+low_sign_extend (x, len)
unsigned int x, len;
{
- unsigned int temp1, temp2;
- unsigned int len_ones;
-
- len_ones = ones (len);
-
- temp1 = (x & 1) << (len - 1);
- temp2 = ((x & 0xfffffffe) & len_ones) >> 1;
- return sign_ext ((temp1 | temp2), len);
+ return (int)((x & 0x1 ? (-1 << (len - 1)) : 0) | x >> 1);
}
static INLINE void
unsigned long constant_value;
unsigned short r_field;
{
- unsigned long init_value = value;
- value += constant_value;
switch (r_field)
{
- case e_fsel: /* F : no change */
+ 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 */
+ case e_rssel: /* RS : Sign extend from bit 21 */
+ value += constant_value;
if (value & 0x00000400)
value |= 0xfffff800;
else
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 */
+ 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 */
+ right 11 bits */
+ value += constant_value;
value += 0x800;
value = (value & 0xfffff800) >> 11;
break;
- case e_rdsel: /* RD : Set bits 0-20 to one */
+ 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;
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 */
projects / external / binutils.git / blobdiff