diff options
Diffstat (limited to 'elfutils/backends/sparc_regs.c')
-rw-r--r-- | elfutils/backends/sparc_regs.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/elfutils/backends/sparc_regs.c b/elfutils/backends/sparc_regs.c new file mode 100644 index 00000000..b3e9e201 --- /dev/null +++ b/elfutils/backends/sparc_regs.c @@ -0,0 +1,108 @@ +/* Register names and numbers for SPARC DWARF. + Copyright (C) 2005, 2006 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 sparc_ +#include "libebl_CPU.h" + +ssize_t +sparc_register_info (Ebl *ebl, + int regno, char *name, size_t namelen, + const char **prefix, const char **setname, + int *bits, int *type) +{ + const int nfp = 32 + (ebl->machine == EM_SPARC ? 0 : 16); + const int nspec = ebl->machine == EM_SPARC ? 8 : 6; + + if (name == NULL) + return 32 + nfp + nspec; + + if (regno < 0 || regno >= 32 + nfp + nspec || namelen < 6) + return -1; + + *bits = ebl->machine == EM_SPARC ? 32 : 64; + *type = DW_ATE_signed; + + *prefix = "%"; + + if (regno >= 32 + nfp) + { + regno -= 32 + nfp; + static const char names[2][8][6] = + { + { "y", "psr", "wim", "tbr", "pc", "npc", "fsr", "csr" }, /* v8 */ + { "pc", "npc", "state", "fsr", "fprs", "y" } /* v9 */ + }; + *setname = "control"; + *type = DW_ATE_unsigned; + if ((ebl->machine != EM_SPARC ? 0 : 4) + 1 - (unsigned int) regno <= 1) + *type = DW_ATE_address; + return stpncpy (name, names[ebl->machine != EM_SPARC][regno], + namelen) + 1 - name; + } + + if (regno < 32) + { + *setname = "integer"; + name[0] = "goli"[regno >> 3]; + name[1] = (regno & 7) + '0'; + namelen = 2; + if ((regno & 8) && (regno & 7) == 6) + *type = DW_ATE_address; + } + else + { + *setname = "FPU"; + *type = DW_ATE_float; + + regno -= 32; + if (regno >= 32) + regno = 32 + 2 * (regno - 32); + else + *bits = 32; + + name[0] = 'f'; + if (regno < 10) + { + name[1] = regno + '0'; + namelen = 2; + } + else + { + name[1] = regno / 10 + '0'; + name[2] = regno % 10 + '0'; + namelen = 3; + } + } + + name[namelen++] = '\0'; + return namelen; +} |