diff options
Diffstat (limited to 'elfutils/backends/i386_regs.c')
-rw-r--r-- | elfutils/backends/i386_regs.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/elfutils/backends/i386_regs.c b/elfutils/backends/i386_regs.c new file mode 100644 index 00000000..c2c21423 --- /dev/null +++ b/elfutils/backends/i386_regs.c @@ -0,0 +1,121 @@ +/* Register names and numbers for i386 DWARF. + Copyright (C) 2005 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> + +#define BACKEND i386_ +#include "libebl_CPU.h" + +ssize_t +i386_register_name (Ebl *ebl __attribute__ ((unused)), + int regno, char *name, size_t namelen, + const char **prefix, const char **setname) +{ + if (name == NULL) + return 46; + + if (regno < 0 || regno > 45 || namelen < 6) + return -1; + + *prefix = "%"; + if (regno < 11) + *setname = "integer"; + else if (regno < 19) + *setname = "x87"; + else if (regno < 29) + *setname = "SSE"; + else if (regno < 37) + *setname = "MMX"; + else if (regno < 40) + *setname = "FPU-control"; + else + *setname = "segment"; + + switch (regno) + { + static const char baseregs[][2] = + { + "ax", "cx", "dx", "bx", "sp", "bp", "si", "di", "ip" + }; + + case 0 ... 8: + name[0] = 'e'; + name[1] = baseregs[regno][0]; + name[2] = baseregs[regno][1]; + namelen = 3; + break; + + case 9: + return stpcpy (name, "eflags") - name; + case 10: + return stpcpy (name, "trapno") - name; + + case 11 ... 18: + name[0] = 's'; + name[1] = 't'; + name[2] = regno - 11 + '0'; + namelen = 3; + break; + + case 21 ... 28: + name[0] = 'x'; + name[1] = 'm'; + name[2] = 'm'; + name[3] = regno - 21 + '0'; + namelen = 4; + break; + + case 29 ... 36: + name[0] = 'm'; + name[1] = 'm'; + name[2] = regno - 29 + '0'; + namelen = 3; + break; + + case 37: + return stpcpy (name, "fctrl") - name; + case 38: + return stpcpy (name, "fstat") - name; + case 39: + return stpcpy (name, "mxcsr") - name; + + case 40 ... 45: + name[0] = "ecsdfg"[regno - 40]; + name[1] = 's'; + namelen = 2; + break; + + default: + *setname = NULL; + return 0; + } + + name[namelen++] = '\0'; + return namelen; +} |