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Diffstat (limited to 'elfutils/tests/allregs.c')
| -rw-r--r-- | elfutils/tests/allregs.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/elfutils/tests/allregs.c b/elfutils/tests/allregs.c new file mode 100644 index 00000000..f1856dfd --- /dev/null +++ b/elfutils/tests/allregs.c @@ -0,0 +1,229 @@ +/* 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 <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <error.h> +#include <locale.h> +#include <argp.h> +#include <assert.h> +#include ELFUTILS_HEADER(dwfl) +#include <dwarf.h> + + +static const char * +dwarf_encoding_string (unsigned int code) +{ + static const char *known[] = + { + [DW_ATE_void] = "void", + [DW_ATE_address] = "address", + [DW_ATE_boolean] = "boolean", + [DW_ATE_complex_float] = "complex_float", + [DW_ATE_float] = "float", + [DW_ATE_signed] = "signed", + [DW_ATE_signed_char] = "signed_char", + [DW_ATE_unsigned] = "unsigned", + [DW_ATE_unsigned_char] = "unsigned_char", + [DW_ATE_imaginary_float] = "imaginary_float", + [DW_ATE_packed_decimal] = "packed_decimal", + [DW_ATE_numeric_string] = "numeric_string", + [DW_ATE_edited] = "edited", + [DW_ATE_signed_fixed] = "signed_fixed", + [DW_ATE_unsigned_fixed] = "unsigned_fixed", + [DW_ATE_decimal_float] = "decimal_float", + }; + + if (code < sizeof (known) / sizeof (known[0])) + return known[code]; + + if (code >= DW_ATE_lo_user && code <= DW_ATE_hi_user) + { + static char buf[30]; + snprintf (buf, sizeof (buf), "lo_user+%u", code - DW_ATE_lo_user); + return buf; + } + + return "???"; +} + +static int +first_module (Dwfl_Module *mod, + void **userdatap __attribute__ ((unused)), + const char *name __attribute__ ((unused)), + Dwarf_Addr low_addr __attribute__ ((unused)), + void *arg) +{ + Dwarf_Addr bias; + if (dwfl_module_getelf (mod, &bias) == NULL) /* Not really a module. */ + return DWARF_CB_OK; + + *(Dwfl_Module **) arg = mod; + return DWARF_CB_ABORT; +} + + +struct state +{ + struct reginfo *info; + int nregs; +}; + +struct reginfo +{ + const char *set, *pfx; + int regno; + int bits; + int type; + char name[32]; +}; + +static int +compare (const void *r1, const void *r2) +{ + const struct reginfo *a = r1, *b = r2; + if (a->set == b->set) + return a->regno - b->regno; + if (a->set == NULL) + return 1; + if (b->set == NULL) + return -1; + if (!strcmp (a->set, "integer")) + return -1; + if (!strcmp (b->set, "integer")) + return 1; + return strcmp (a->set, b->set); +} + +static int +one_register (void *arg, + int regno, + const char *setname, + const char *prefix, + const char *regname, + int bits, int type) +{ + struct state *state = arg; + + if (regno >= state->nregs) + { + state->info = realloc (state->info, (regno + 1) * sizeof state->info[0]); + memset (&state->info[state->nregs], 0, + ((void *) &state->info[regno + 1] + - (void *) &state->info[state->nregs])); + state->nregs = regno + 1; + } + + state->info[regno].regno = regno; + state->info[regno].set = setname; + state->info[regno].pfx = prefix; + state->info[regno].bits = bits; + state->info[regno].type = type; + assert (strlen (regname) < sizeof state->info[regno].name); + strcpy (state->info[regno].name, regname); + + return DWARF_CB_OK; +} + + +static int +match_register (void *arg, + int regno, + const char *setname, + const char *prefix, + const char *regname, + int bits, int type) +{ + if (regno == *(int *) arg) + printf ("%5d => %s register %s%s %s %d bits\n", + regno, setname, prefix, regname, + dwarf_encoding_string (type), bits); + + return DWARF_CB_ABORT; +} + + +int +main (int argc, char **argv) +{ + int remaining; + + /* Set locale. */ + (void) setlocale (LC_ALL, ""); + + Dwfl *dwfl = NULL; + (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &remaining, &dwfl); + assert (dwfl != NULL); + + Dwfl_Module *mod = NULL; + if (dwfl_getmodules (dwfl, &first_module, &mod, 0) < 0) + error (EXIT_FAILURE, 0, "dwfl_getmodules: %s", dwfl_errmsg (-1)); + + if (remaining == argc) + { + struct state state = { NULL, 0 }; + int result = dwfl_module_register_names (mod, &one_register, &state); + if (result != 0 || state.nregs == 0) + error (EXIT_FAILURE, 0, "dwfl_module_register_names: %s", + result ? dwfl_errmsg (-1) : "no backend registers known"); + + qsort (state.info, state.nregs, sizeof state.info[0], &compare); + + const char *set = NULL; + for (int i = 0; i < state.nregs; ++i) + if (state.info[i].set != NULL) + { + if (set != state.info[i].set) + printf ("%s registers:\n", state.info[i].set); + set = state.info[i].set; + + printf ("\t%3d: %s%s (%s), %s %d bits\n", + state.info[i].regno, + state.info[i].pfx ?: "", state.info[i].name, + state.info[i].name, + dwarf_encoding_string (state.info[i].type), + state.info[i].bits); + } + } + else + do + { + const char *arg = argv[remaining++]; + int regno = atoi (arg); + int result = dwfl_module_register_names (mod, &match_register, ®no); + if (result != DWARF_CB_ABORT) + error (EXIT_FAILURE, 0, "dwfl_module_register_names: %s", + result ? dwfl_errmsg (-1) : "no backend registers known"); + } + while (remaining < argc); + + dwfl_end (dwfl); + + return 0; +} |