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1 : : /* Error handling in libasm. 2 : : Copyright (C) 2002, 2004, 2005, 2009 Red Hat, Inc. 3 : : This file is part of elfutils. 4 : : Written by Ulrich Drepper <drepper@redhat.com>, 2002. 5 : : 6 : : This file is free software; you can redistribute it and/or modify 7 : : it under the terms of either 8 : : 9 : : * the GNU Lesser General Public License as published by the Free 10 : : Software Foundation; either version 3 of the License, or (at 11 : : your option) any later version 12 : : 13 : : or 14 : : 15 : : * the GNU General Public License as published by the Free 16 : : Software Foundation; either version 2 of the License, or (at 17 : : your option) any later version 18 : : 19 : : or both in parallel, as here. 20 : : 21 : : elfutils is distributed in the hope that it will be useful, but 22 : : WITHOUT ANY WARRANTY; without even the implied warranty of 23 : : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 24 : : General Public License for more details. 25 : : 26 : : You should have received copies of the GNU General Public License and 27 : : the GNU Lesser General Public License along with this program. If 28 : : not, see <http://www.gnu.org/licenses/>. */ 29 : : 30 : : #ifdef HAVE_CONFIG_H 31 : : # include <config.h> 32 : : #endif 33 : : 34 : : #include <stdbool.h> 35 : : #include <stdlib.h> 36 : : 37 : : #include "libasmP.h" 38 : : 39 : : 40 : : /* This is the key for the thread specific memory. */ 41 : : static __thread int global_error; 42 : : 43 : : 44 : : int 45 : 0 : asm_errno (void) 46 : : { 47 : 0 : int result = global_error; 48 : 0 : global_error = ASM_E_NOERROR; 49 : 0 : return result; 50 : : } 51 : : 52 : : 53 : : void 54 : : internal_function 55 : 0 : __libasm_seterrno (int value) 56 : : { 57 : 0 : global_error = value; 58 : 0 : } 59 : : 60 : : 61 : : /* Return the appropriate message for the error. */ 62 : : static const char *msgs[ASM_E_NUM] = 63 : : { 64 : : [ASM_E_NOERROR] = N_("no error"), 65 : : [ASM_E_NOMEM] = N_("out of memory"), 66 : : [ASM_E_CANNOT_CREATE] = N_("cannot create output file"), 67 : : [ASM_E_INVALID] = N_("invalid parameter"), 68 : : [ASM_E_CANNOT_CHMOD] = N_("cannot change mode of output file"), 69 : : [ASM_E_CANNOT_RENAME] = N_("cannot rename output file"), 70 : : [ASM_E_DUPLSYM] = N_("duplicate symbol"), 71 : : [ASM_E_TYPE] = N_("invalid section type for operation"), 72 : : [ASM_E_IOERROR] = N_("error during output of data"), 73 : : [ASM_E_ENOSUP] = N_("no backend support available"), 74 : : }; 75 : : 76 : : const char * 77 : 0 : asm_errmsg (int error) 78 : : { 79 : 0 : int last_error = global_error; 80 : : 81 [ # # ]: 0 : if (error < -1) 82 : 0 : return _("unknown error"); 83 [ # # ]: 0 : if (error == 0 && last_error == 0) 84 : : /* No error. */ 85 : : return NULL; 86 : : 87 [ # # ]: 0 : if (error != -1) 88 : 0 : last_error = error; 89 : : 90 [ # # ]: 0 : if (last_error == ASM_E_LIBELF) 91 : 0 : return elf_errmsg (-1); 92 : : 93 : 0 : return _(msgs[last_error]); 94 : : }