1 /* Wrapper for ar/ranlib/nm to pass the LTO plugin. 2 Copyright (C) 2011, 2012 Free Software Foundation, Inc. 3 Contributed by Andi Kleen. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 3, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #include "config.h" 22 #include "system.h" 23 #include "libiberty.h" 24 25 #ifndef PERSONALITY 26 #error "Please set personality" 27 #endif 28 29 static const char standard_libexec_prefix[] = STANDARD_LIBEXEC_PREFIX; 30 static const char standard_bin_prefix[] = STANDARD_BINDIR_PREFIX; 31 static const char *const target_machine = TARGET_MACHINE; 32 33 static const char dir_separator[] = { DIR_SEPARATOR, 0 }; 34 35 int 36 main(int ac, char **av) 37 { 38 const char *nprefix; 39 const char *exe_name; 40 char *plugin; 41 int k, status, err; 42 const char *err_msg; 43 const char **nargv; 44 bool is_ar = !strcmp (PERSONALITY, "ar"); 45 int exit_code = FATAL_EXIT_CODE; 46 47 exe_name = PERSONALITY; 48 #ifdef CROSS_DIRECTORY_STRUCTURE 49 exe_name = concat (target_machine, "-", exe_name, NULL); 50 #endif 51 52 /* Find plugin */ 53 /* XXX implement more magic from gcc.c? */ 54 nprefix = getenv ("GCC_EXEC_PREFIX"); 55 if (!nprefix) 56 nprefix = av[0]; 57 else 58 nprefix = concat (nprefix, "gcc-" PERSONALITY, NULL); 59 60 nprefix = make_relative_prefix (nprefix, 61 standard_bin_prefix, 62 standard_libexec_prefix); 63 if (nprefix == NULL) 64 nprefix = standard_libexec_prefix; 65 66 plugin = concat (nprefix, 67 dir_separator, 68 DEFAULT_TARGET_MACHINE, 69 dir_separator, 70 DEFAULT_TARGET_VERSION, 71 dir_separator, 72 LTOPLUGINSONAME, 73 NULL); 74 if (access (plugin, R_OK)) 75 { 76 fprintf (stderr, "%s: Cannot find plugin %s\n", av[0], plugin); 77 exit (1); 78 } 79 80 /* Create new command line with plugin */ 81 nargv = XCNEWVEC (const char *, ac + 4); 82 nargv[0] = exe_name; 83 nargv[1] = "--plugin"; 84 nargv[2] = plugin; 85 if (is_ar && av[1] && av[1][0] != '-') 86 av[1] = concat("-", av[1], NULL); 87 for (k = 1; k < ac; k++) 88 nargv[2 + k] = av[k]; 89 nargv[2 + k] = NULL; 90 91 /* Run utility */ 92 /* ??? the const is misplaced in pex_one's argv? */ 93 err_msg = pex_one (PEX_LAST|PEX_SEARCH, 94 exe_name, 95 CONST_CAST2 (char * const *, const char **, nargv), 96 concat("gcc-", exe_name, NULL), 97 NULL,NULL, &status, &err); 98 if (err_msg) 99 fprintf(stderr, "Error running %s: %s\n", exe_name, err_msg); 100 else if (status) 101 { 102 if (WIFSIGNALED (status)) 103 { 104 int sig = WTERMSIG (status); 105 fprintf (stderr, "%s terminated with signal %d [%s]%s\n", 106 exe_name, sig, strsignal(sig), 107 WCOREDUMP(status) ? ", core dumped" : ""); 108 } 109 else if (WIFEXITED (status)) 110 exit_code = WEXITSTATUS (status); 111 } 112 else 113 exit_code = SUCCESS_EXIT_CODE; 114 115 return exit_code; 116 } 117