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Diffstat (limited to 'binutils-2.17/bfd/libhppa.h')
| -rw-r--r-- | binutils-2.17/bfd/libhppa.h | 594 |
1 files changed, 0 insertions, 594 deletions
diff --git a/binutils-2.17/bfd/libhppa.h b/binutils-2.17/bfd/libhppa.h deleted file mode 100644 index 064c8321..00000000 --- a/binutils-2.17/bfd/libhppa.h +++ /dev/null @@ -1,594 +0,0 @@ -/* HP PA-RISC SOM object file format: definitions internal to BFD. - Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, - 2003 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ - -#ifndef _LIBHPPA_H -#define _LIBHPPA_H - -#define BYTES_IN_WORD 4 -#define PA_PAGESIZE 0x1000 - -/* 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)) - - -/* Some functions to manipulate PA instructions. */ - -/* Declare the functions with the unused attribute to avoid warnings. */ -static inline int sign_extend (int, int) ATTRIBUTE_UNUSED; -static inline int low_sign_extend (int, int) ATTRIBUTE_UNUSED; -static inline int sign_unext (int, int) ATTRIBUTE_UNUSED; -static inline int low_sign_unext (int, int) ATTRIBUTE_UNUSED; -static inline int re_assemble_3 (int) ATTRIBUTE_UNUSED; -static inline int re_assemble_12 (int) ATTRIBUTE_UNUSED; -static inline int re_assemble_14 (int) ATTRIBUTE_UNUSED; -static inline int re_assemble_16 (int) ATTRIBUTE_UNUSED; -static inline int re_assemble_17 (int) ATTRIBUTE_UNUSED; -static inline int re_assemble_21 (int) ATTRIBUTE_UNUSED; -static inline int re_assemble_22 (int) ATTRIBUTE_UNUSED; -static inline bfd_signed_vma hppa_field_adjust - (bfd_vma, bfd_signed_vma, enum hppa_reloc_field_selector_type_alt) - ATTRIBUTE_UNUSED; -static inline int bfd_hppa_insn2fmt (bfd *, int) ATTRIBUTE_UNUSED; -static inline int hppa_rebuild_insn (int, int, int) ATTRIBUTE_UNUSED; - - -/* The *sign_extend functions are used to assemble various bitfields - taken from an instruction and return the resulting immediate - value. */ - -static inline int -sign_extend (int x, int len) -{ - int signbit = (1 << (len - 1)); - int mask = (signbit << 1) - 1; - return ((x & mask) ^ signbit) - signbit; -} - -static inline int -low_sign_extend (int x, int len) -{ - return (x >> 1) - ((x & 1) << (len - 1)); -} - - -/* The re_assemble_* functions prepare an immediate value for - insertion into an opcode. pa-risc uses all sorts of weird bitfields - in the instruction to hold the value. */ - -static inline int -sign_unext (int x, int len) -{ - int len_ones; - - len_ones = (1 << len) - 1; - - return x & len_ones; -} - -static inline int -low_sign_unext (int x, int len) -{ - int temp; - int sign; - - sign = (x >> (len-1)) & 1; - - temp = sign_unext (x, len-1); - - return (temp << 1) | sign; -} - -static inline int -re_assemble_3 (int as3) -{ - return (( (as3 & 4) << (13-2)) - | ((as3 & 3) << (13+1))); -} - -static inline int -re_assemble_12 (int as12) -{ - return (( (as12 & 0x800) >> 11) - | ((as12 & 0x400) >> (10 - 2)) - | ((as12 & 0x3ff) << (1 + 2))); -} - -static inline int -re_assemble_14 (int as14) -{ - return (( (as14 & 0x1fff) << 1) - | ((as14 & 0x2000) >> 13)); -} - -static inline int -re_assemble_16 (int as16) -{ - int s, t; - - /* Unusual 16-bit encoding, for wide mode only. */ - t = (as16 << 1) & 0xffff; - s = (as16 & 0x8000); - return (t ^ s ^ (s >> 1)) | (s >> 15); -} - -static inline int -re_assemble_17 (int as17) -{ - return (( (as17 & 0x10000) >> 16) - | ((as17 & 0x0f800) << (16 - 11)) - | ((as17 & 0x00400) >> (10 - 2)) - | ((as17 & 0x003ff) << (1 + 2))); -} - -static inline int -re_assemble_21 (int as21) -{ - return (( (as21 & 0x100000) >> 20) - | ((as21 & 0x0ffe00) >> 8) - | ((as21 & 0x000180) << 7) - | ((as21 & 0x00007c) << 14) - | ((as21 & 0x000003) << 12)); -} - -static inline int -re_assemble_22 (int as22) -{ - return (( (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 (bfd_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: - /* F: No change. */ - break; - - case e_nsel: - /* N: null selector. I don't really understand what this is all - about, but HP's documentation says "this indicates that zero - bits are to be used for the displacement on the instruction. - This fixup is used to identify three-instruction sequences to - access data (for importing shared library data)." */ - value = 0; - 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) - -enum hppa_opcode_type -{ - /* None of the opcodes in the first group generate relocs, so we - aren't too concerned about them. */ - OP_SYSOP = 0x00, - OP_MEMMNG = 0x01, - OP_ALU = 0x02, - OP_NDXMEM = 0x03, - OP_SPOP = 0x04, - OP_DIAG = 0x05, - OP_FMPYADD = 0x06, - OP_UNDEF07 = 0x07, - OP_COPRW = 0x09, - OP_COPRDW = 0x0b, - OP_COPR = 0x0c, - OP_FLOAT = 0x0e, - OP_PRDSPEC = 0x0f, - OP_UNDEF15 = 0x15, - OP_UNDEF1d = 0x1d, - OP_FMPYSUB = 0x26, - OP_FPFUSED = 0x2e, - OP_SHEXDP0 = 0x34, - OP_SHEXDP1 = 0x35, - OP_SHEXDP2 = 0x36, - OP_UNDEF37 = 0x37, - OP_SHEXDP3 = 0x3c, - OP_SHEXDP4 = 0x3d, - OP_MULTMED = 0x3e, - OP_UNDEF3f = 0x3f, - - OP_LDIL = 0x08, - OP_ADDIL = 0x0a, - - OP_LDO = 0x0d, - OP_LDB = 0x10, - OP_LDH = 0x11, - OP_LDW = 0x12, - OP_LDWM = 0x13, - OP_STB = 0x18, - OP_STH = 0x19, - OP_STW = 0x1a, - OP_STWM = 0x1b, - - OP_LDD = 0x14, - OP_STD = 0x1c, - - OP_FLDW = 0x16, - OP_LDWL = 0x17, - OP_FSTW = 0x1e, - OP_STWL = 0x1f, - - OP_COMBT = 0x20, - OP_COMIBT = 0x21, - OP_COMBF = 0x22, - OP_COMIBF = 0x23, - OP_CMPBDT = 0x27, - OP_ADDBT = 0x28, - OP_ADDIBT = 0x29, - OP_ADDBF = 0x2a, - OP_ADDIBF = 0x2b, - OP_CMPBDF = 0x2f, - OP_BVB = 0x30, - OP_BB = 0x31, - OP_MOVB = 0x32, - OP_MOVIB = 0x33, - OP_CMPIBD = 0x3b, - - OP_COMICLR = 0x24, - OP_SUBI = 0x25, - OP_ADDIT = 0x2c, - OP_ADDI = 0x2d, - - OP_BE = 0x38, - OP_BLE = 0x39, - OP_BL = 0x3a -}; - - -/* Given a machine instruction, return its format. */ - -static inline int -bfd_hppa_insn2fmt (bfd *abfd, int insn) -{ - enum hppa_opcode_type op = get_opcode (insn); - - switch (op) - { - case OP_COMICLR: - case OP_SUBI: - case OP_ADDIT: - case OP_ADDI: - return 11; - - case OP_COMBT: - case OP_COMIBT: - case OP_COMBF: - case OP_COMIBF: - case OP_CMPBDT: - case OP_ADDBT: - case OP_ADDIBT: - case OP_ADDBF: - case OP_ADDIBF: - case OP_CMPBDF: - case OP_BVB: - case OP_BB: - case OP_MOVB: - case OP_MOVIB: - case OP_CMPIBD: - return 12; - - case OP_LDO: - case OP_LDB: - case OP_LDH: - case OP_LDW: - case OP_LDWM: - case OP_STB: - case OP_STH: - case OP_STW: - case OP_STWM: - if (abfd->arch_info->mach >= 25) - return 16; /* Wide mode, format 16. */ - return 14; - - case OP_FLDW: - case OP_LDWL: - case OP_FSTW: - case OP_STWL: - /* 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. */ - if (abfd->arch_info->mach >= 25) - return -16; /* Wide mode, format 16a. */ - return -11; - - case OP_LDD: - case OP_STD: - if (abfd->arch_info->mach >= 25) - return -10; /* Wide mode, format 10a. */ - return 10; - - case OP_BL: - if ((insn & 0x8000) != 0) - return 22; - /* fall thru */ - case OP_BE: - case OP_BLE: - return 17; - - case OP_LDIL: - case OP_ADDIL: - return 21; - - default: - break; - } - return 32; -} - - -/* Insert VALUE into INSN using R_FORMAT to determine exactly what - bits to change. */ - -static inline int -hppa_rebuild_insn (int insn, int value, int r_format) -{ - switch (r_format) - { - case 11: - return (insn & ~ 0x7ff) | low_sign_unext (value, 11); - - case 12: - return (insn & ~ 0x1ffd) | re_assemble_12 (value); - - - case 10: - return (insn & ~ 0x3ff1) | re_assemble_14 (value & -8); - - case -11: - return (insn & ~ 0x3ff9) | re_assemble_14 (value & -4); - - case 14: - return (insn & ~ 0x3fff) | re_assemble_14 (value); - - - case -10: - return (insn & ~ 0xfff1) | re_assemble_16 (value & -8); - - case -16: - return (insn & ~ 0xfff9) | re_assemble_16 (value & -4); - - case 16: - return (insn & ~ 0xffff) | re_assemble_16 (value); - - - case 17: - return (insn & ~ 0x1f1ffd) | re_assemble_17 (value); - - case 21: - return (insn & ~ 0x1fffff) | re_assemble_21 (value); - - case 22: - return (insn & ~ 0x3ff1ffd) | re_assemble_22 (value); - - case 32: - return value; - - default: - abort (); - } - return insn; -} - -#endif /* _LIBHPPA_H */ |