109 lines
2.8 KiB
C
109 lines
2.8 KiB
C
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/* Register names and numbers for AArch64 DWARF.
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Copyright (C) 2013, 2014 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <dwarf.h>
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#include <stdarg.h>
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#define BACKEND aarch64_
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#include "libebl_CPU.h"
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__attribute__ ((format (printf, 7, 8)))
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static ssize_t
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do_regtype (const char *setname, int type,
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const char **setnamep, int *typep,
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char *name, size_t namelen, const char *fmt, ...)
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{
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*setnamep = setname;
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*typep = type;
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va_list ap;
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va_start (ap, fmt);
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int s = vsnprintf (name, namelen, fmt, ap);
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va_end(ap);
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if (s < 0 || (unsigned) s >= namelen)
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return -1;
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return s + 1;
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}
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ssize_t
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aarch64_register_info (Ebl *ebl __attribute__ ((unused)),
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int regno, char *name, size_t namelen,
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const char **prefix, const char **setnamep,
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int *bits, int *typep)
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{
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if (name == NULL)
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return 128;
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*prefix = "";
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*bits = 64;
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#define regtype(setname, type, ...) \
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do_regtype(setname, type, setnamep, typep, name, namelen, __VA_ARGS__)
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switch (regno)
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{
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case 0 ... 30:
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return regtype ("integer", DW_ATE_signed, "x%d", regno);
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case 31:
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return regtype ("integer", DW_ATE_address, "sp");
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case 32:
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return 0;
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case 33:
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return regtype ("integer", DW_ATE_address, "elr");
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case 34 ... 63:
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return 0;
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case 64 ... 95:
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/* FP/SIMD register file supports a variety of data types--it
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can be thought of as a register holding a single integer or
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floating-point value, or a vector of 8-, 16-, 32- or 64-bit
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integers. 128-bit quad-word is the only singular value that
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covers the whole register, so mark the register thus. */
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*bits = 128;
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return regtype ("FP/SIMD", DW_ATE_unsigned, "v%d", regno - 64);
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case 96 ... 127:
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return 0;
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default:
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return -1;
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}
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}
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