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165 lines
3.5 KiB
165 lines
3.5 KiB
/* Register names and numbers for Alpha DWARF.
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Copyright (C) 2007 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 <string.h>
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#include <dwarf.h>
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#define BACKEND alpha_
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#include "libebl_CPU.h"
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ssize_t
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alpha_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 **setname,
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int *bits, int *type)
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{
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if (name == NULL)
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return 67;
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if (regno < 0 || regno > 66 || namelen < 7)
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return -1;
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*prefix = "$";
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*bits = 64;
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*type = DW_ATE_signed;
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*setname = "integer";
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if (regno >= 32 && regno < 64)
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{
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*setname = "FPU";
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*type = DW_ATE_float;
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}
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switch (regno)
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{
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case 0:
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name[0] = 'v';
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name[1] = '0';
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namelen = 2;
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break;
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case 1 ... 8:
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name[0] = 't';
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name[1] = regno - 1 + '0';
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namelen = 2;
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break;
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case 9 ... 15:
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name[0] = 's';
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name[1] = regno - 9 + '0';
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namelen = 2;
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break;
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case 16 ... 21:
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name[0] = 'a';
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name[1] = regno - 16 + '0';
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namelen = 2;
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break;
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case 22 ... 23:
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name[0] = 't';
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name[1] = regno - 22 + '8';
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namelen = 2;
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break;
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case 24 ... 25:
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name[0] = 't';
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name[1] = '1';
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name[2] = regno - 24 + '0';
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namelen = 3;
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break;
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case 26:
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*type = DW_ATE_address;
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return stpcpy (name, "ra") + 1 - name;
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case 27:
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return stpcpy (name, "t12") + 1 - name;
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case 28:
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return stpcpy (name, "at") + 1 - name;
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case 29:
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*type = DW_ATE_address;
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return stpcpy (name, "gp") + 1 - name;
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case 30:
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*type = DW_ATE_address;
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return stpcpy (name, "sp") + 1 - name;
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case 31:
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return stpcpy (name, "zero") + 1 - name;
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case 32 ... 32 + 9:
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name[0] = 'f';
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name[1] = regno - 32 + '0';
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namelen = 2;
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break;
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case 32 + 10 ... 32 + 19:
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name[0] = 'f';
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name[1] = '1';
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name[2] = regno - 32 - 10 + '0';
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namelen = 3;
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break;
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case 32 + 20 ... 32 + 29:
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name[0] = 'f';
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name[1] = '2';
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name[2] = regno - 32 - 20 + '0';
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namelen = 3;
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break;
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case 32 + 30:
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return stpcpy (name, "f30") + 1 - name;
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case 32 + 31:
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*type = DW_ATE_unsigned;
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return stpcpy (name, "fpcr") + 1 - name;
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case 64:
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*type = DW_ATE_address;
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return stpcpy (name, "pc") + 1 - name;
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case 66:
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*type = DW_ATE_address;
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return stpcpy (name, "unique") + 1 - name;
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default:
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*setname = NULL;
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return 0;
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}
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name[namelen++] = '\0';
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return namelen;
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}
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