diff options
Diffstat (limited to 'backends/alpha_regs.c')
| -rw-r--r-- | backends/alpha_regs.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/backends/alpha_regs.c b/backends/alpha_regs.c new file mode 100644 index 0000000..3bb9a6c --- /dev/null +++ b/backends/alpha_regs.c @@ -0,0 +1,161 @@ +/* Register names and numbers for Alpha DWARF. + Copyright (C) 2007 Red Hat, Inc. + This file is part of Red Hat elfutils. + + Red Hat elfutils 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; version 2 of the License. + + Red Hat elfutils 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 Red Hat elfutils; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. + + Red Hat elfutils is an included package of the Open Invention Network. + An included package of the Open Invention Network is a package for which + Open Invention Network licensees cross-license their patents. No patent + license is granted, either expressly or impliedly, by designation as an + included package. Should you wish to participate in the Open Invention + Network licensing program, please visit www.openinventionnetwork.com + <http://www.openinventionnetwork.com>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <string.h> +#include <dwarf.h> + +#define BACKEND alpha_ +#include "libebl_CPU.h" + +ssize_t +alpha_register_info (Ebl *ebl __attribute__ ((unused)), + int regno, char *name, size_t namelen, + const char **prefix, const char **setname, + int *bits, int *type) +{ + if (name == NULL) + return 67; + + if (regno < 0 || regno > 66 || namelen < 7) + return -1; + + *prefix = "$"; + + *bits = 64; + *type = DW_ATE_signed; + *setname = "integer"; + if (regno >= 32 && regno < 64) + { + *setname = "FPU"; + *type = DW_ATE_float; + } + + switch (regno) + { + case 0: + name[0] = 'v'; + name[1] = '0'; + namelen = 2; + break; + + case 1 ... 8: + name[0] = 't'; + name[1] = regno - 1 + '0'; + namelen = 2; + break; + + case 9 ... 15: + name[0] = 's'; + name[1] = regno - 9 + '0'; + namelen = 2; + break; + + case 16 ... 21: + name[0] = 'a'; + name[1] = regno - 16 + '0'; + namelen = 2; + break; + + case 22 ... 23: + name[0] = 't'; + name[1] = regno - 22 + '8'; + namelen = 2; + break; + + case 24 ... 25: + name[0] = 't'; + name[1] = '1'; + name[2] = regno - 24 + '0'; + namelen = 3; + break; + + case 26: + *type = DW_ATE_address; + return stpcpy (name, "ra") + 1 - name; + + case 27: + return stpcpy (name, "t12") + 1 - name; + + case 28: + return stpcpy (name, "at") + 1 - name; + + case 29: + *type = DW_ATE_address; + return stpcpy (name, "gp") + 1 - name; + + case 30: + *type = DW_ATE_address; + return stpcpy (name, "sp") + 1 - name; + + case 31: + return stpcpy (name, "zero") + 1 - name; + + case 32 ... 32 + 9: + name[0] = 'f'; + name[1] = regno - 32 + '0'; + namelen = 2; + break; + + case 32 + 10 ... 32 + 19: + name[0] = 'f'; + name[1] = '1'; + name[2] = regno - 32 - 10 + '0'; + namelen = 3; + break; + + case 32 + 20 ... 32 + 29: + name[0] = 'f'; + name[1] = '2'; + name[2] = regno - 32 - 20 + '0'; + namelen = 3; + break; + + case 32 + 30: + return stpcpy (name, "f30") + 1 - name; + + case 32 + 31: + *type = DW_ATE_unsigned; + return stpcpy (name, "fpcr") + 1 - name; + + case 64: + *type = DW_ATE_address; + return stpcpy (name, "pc") + 1 - name; + + case 66: + *type = DW_ATE_address; + return stpcpy (name, "unique") + 1 - name; + + default: + *setname = NULL; + return 0; + } + + name[namelen++] = '\0'; + return namelen; +} |