X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=gcc%2Ff%2Fg77spec.c;fp=gcc%2Ff%2Fg77spec.c;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=2e094d911c7b41f250a2b7e47a80542298f9a7c2;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gcc/f/g77spec.c b/gcc/f/g77spec.c deleted file mode 100644 index 2e094d91..00000000 --- a/gcc/f/g77spec.c +++ /dev/null @@ -1,565 +0,0 @@ -/* Specific flags and argument handling of the Fortran front-end. - Copyright (C) 1997, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC 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; either version 2, or (at your option) -any later version. - -GNU CC 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 GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* This file contains a filter for the main `gcc' driver, which is - replicated for the `g77' driver by adding this filter. The purpose - of this filter is to be basically identical to gcc (in that - it faithfully passes all of the original arguments to gcc) but, - unless explicitly overridden by the user in certain ways, ensure - that the needs of the language supported by this wrapper are met. - - For GNU Fortran (g77), we do the following to the argument list - before passing it to `gcc': - - 1. Make sure `-lg2c -lm' is at the end of the list. - - 2. Make sure each time `-lg2c' or `-lm' is seen, it forms - part of the series `-lg2c -lm'. - - #1 and #2 are not done if `-nostdlib' or any option that disables - the linking phase is present, or if `-xfoo' is in effect. Note that - a lack of source files or -l options disables linking. - - This program was originally made out of gcc/cp/g++spec.c, but the - way it builds the new argument list was rewritten so it is much - easier to maintain, improve the way it decides to add or not add - extra arguments, etc. And several improvements were made in the - handling of arguments, primarily to make it more consistent with - `gcc' itself. */ - -#include "config.h" -#include "system.h" -#include "gcc.h" -#include - -#ifndef MATH_LIBRARY -#define MATH_LIBRARY "-lm" -#endif - -#ifndef FORTRAN_INIT -#define FORTRAN_INIT "-lfrtbegin" -#endif - -#ifndef FORTRAN_LIBRARY -#define FORTRAN_LIBRARY "-lg2c" -#endif - -/* Options this driver needs to recognize, not just know how to - skip over. */ -typedef enum -{ - OPTION_b, /* Aka --prefix. */ - OPTION_B, /* Aka --target. */ - OPTION_c, /* Aka --compile. */ - OPTION_driver, /* Wrapper-specific option. */ - OPTION_E, /* Aka --preprocess. */ - OPTION_help, /* --help. */ - OPTION_i, /* -imacros, -include, -include-*. */ - OPTION_l, - OPTION_L, /* Aka --library-directory. */ - OPTION_M, /* Aka --dependencies. */ - OPTION_MM, /* Aka --user-dependencies. */ - OPTION_nostdlib, /* Aka --no-standard-libraries, or - -nodefaultlibs. */ - OPTION_o, /* Aka --output. */ - OPTION_S, /* Aka --assemble. */ - OPTION_syntax_only, /* -fsyntax-only. */ - OPTION_v, /* Aka --verbose. */ - OPTION_version, /* --version. */ - OPTION_V, /* Aka --use-version. */ - OPTION_x, /* Aka --language. */ - OPTION_ /* Unrecognized or unimportant. */ -} Option; - -/* The original argument list and related info is copied here. */ -static int g77_xargc; -static const char *const *g77_xargv; -static void lookup_option PARAMS ((Option *, int *, const char **, - const char *)); -static void append_arg PARAMS ((const char *)); - -/* The new argument list will be built here. */ -static int g77_newargc; -static const char **g77_newargv; - -/* --- This comes from gcc.c (2.8.1) verbatim: */ - -/* This defines which switch letters take arguments. */ - -#define DEFAULT_SWITCH_TAKES_ARG(CHAR) \ - ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \ - || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \ - || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \ - || (CHAR) == 'L' || (CHAR) == 'A') - -#ifndef SWITCH_TAKES_ARG -#define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR) -#endif - -/* This defines which multi-letter switches take arguments. */ - -#define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \ - (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \ - || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \ - || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \ - || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \ - || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \ - || !strcmp (STR, "isystem") || !strcmp (STR, "specs")) - -#ifndef WORD_SWITCH_TAKES_ARG -#define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR) -#endif - -/* --- End of verbatim. */ - -/* Assumes text[0] == '-'. Returns number of argv items that belong to - (and follow) this one, an option id for options important to the - caller, and a pointer to the first char of the arg, if embedded (else - returns NULL, meaning no arg or it's the next argv). - - Note that this also assumes gcc.c's pass converting long options - to short ones, where available, has already been run. */ - -static void -lookup_option (xopt, xskip, xarg, text) - Option *xopt; - int *xskip; - const char **xarg; - const char *text; -{ - Option opt = OPTION_; - int skip; - const char *arg = NULL; - - if ((skip = SWITCH_TAKES_ARG (text[1]))) - skip -= (text[2] != '\0'); /* See gcc.c. */ - - if (text[1] == 'B') - opt = OPTION_B, skip = (text[2] == '\0'), arg = text + 2; - else if (text[1] == 'b') - opt = OPTION_b, skip = (text[2] == '\0'), arg = text + 2; - else if ((text[1] == 'c') && (text[2] == '\0')) - opt = OPTION_c, skip = 0; - else if ((text[1] == 'E') && (text[2] == '\0')) - opt = OPTION_E, skip = 0; - else if (text[1] == 'i') - opt = OPTION_i, skip = 0; - else if (text[1] == 'l') - opt = OPTION_l; - else if (text[1] == 'L') - opt = OPTION_L, arg = text + 2; - else if (text[1] == 'o') - opt = OPTION_o; - else if ((text[1] == 'S') && (text[2] == '\0')) - opt = OPTION_S, skip = 0; - else if (text[1] == 'V') - opt = OPTION_V, skip = (text[2] == '\0'); - else if ((text[1] == 'v') && (text[2] == '\0')) - opt = OPTION_v, skip = 0; - else if (text[1] == 'x') - opt = OPTION_x, arg = text + 2; - else - { - if ((skip = WORD_SWITCH_TAKES_ARG (text + 1)) != 0) /* See gcc.c. */ - ; - else if (! strncmp (text, "-fdriver", 8)) /* Really --driver!! */ - opt = OPTION_driver; /* Never mind arg, this is unsupported. */ - else if (! strcmp (text, "-fhelp")) /* Really --help!! */ - opt = OPTION_help; - else if (! strcmp (text, "-M")) - opt = OPTION_M; - else if (! strcmp (text, "-MM")) - opt = OPTION_MM; - else if (! strcmp (text, "-nostdlib") - || ! strcmp (text, "-nodefaultlibs")) - opt = OPTION_nostdlib; - else if (! strcmp (text, "-fsyntax-only")) - opt = OPTION_syntax_only; - else if (! strcmp (text, "-dumpversion")) - opt = OPTION_version; - else if (! strcmp (text, "-fversion")) /* Really --version!! */ - opt = OPTION_version; - else if (! strcmp (text, "-Xlinker") - || ! strcmp (text, "-specs")) - skip = 1; - else - skip = 0; - } - - if (xopt != NULL) - *xopt = opt; - if (xskip != NULL) - *xskip = skip; - if (xarg != NULL) - { - if ((arg != NULL) - && (arg[0] == '\0')) - *xarg = NULL; - else - *xarg = arg; - } -} - -/* Append another argument to the list being built. As long as it is - identical to the corresponding arg in the original list, just increment - the new arg count. Otherwise allocate a new list, etc. */ - -static void -append_arg (arg) - const char *arg; -{ - static int newargsize; - -#if 0 - fprintf (stderr, "`%s'\n", arg); -#endif - - if (g77_newargv == g77_xargv - && g77_newargc < g77_xargc - && (arg == g77_xargv[g77_newargc] - || ! strcmp (arg, g77_xargv[g77_newargc]))) - { - ++g77_newargc; - return; /* Nothing new here. */ - } - - if (g77_newargv == g77_xargv) - { /* Make new arglist. */ - int i; - - newargsize = (g77_xargc << 2) + 20; /* This should handle all. */ - g77_newargv = (const char **) xmalloc (newargsize * sizeof (char *)); - - /* Copy what has been done so far. */ - for (i = 0; i < g77_newargc; ++i) - g77_newargv[i] = g77_xargv[i]; - } - - if (g77_newargc == newargsize) - fatal ("overflowed output arg list for `%s'", arg); - - g77_newargv[g77_newargc++] = arg; -} - -void -lang_specific_driver (in_argc, in_argv, in_added_libraries) - int *in_argc; - const char *const **in_argv; - int *in_added_libraries ATTRIBUTE_UNUSED; -{ - int argc = *in_argc; - const char *const *argv = *in_argv; - int i; - int verbose = 0; - Option opt; - int skip; - const char *arg; - - /* This will be NULL if we encounter a situation where we should not - link in libf2c. */ - const char *library = FORTRAN_LIBRARY; - - /* 0 => -xnone in effect. - 1 => -xfoo in effect. */ - int saw_speclang = 0; - - /* 0 => initial/reset state - 1 => last arg was -l - 2 => last two args were -l -lm. */ - int saw_library = 0; - - /* 0 => initial/reset state - 1 => FORTRAN_INIT linked in */ - int use_init = 0; - /* By default, we throw on the math library if we have one. */ - int need_math = (MATH_LIBRARY[0] != '\0'); - - /* The number of input and output files in the incoming arg list. */ - int n_infiles = 0; - int n_outfiles = 0; - -#if 0 - fprintf (stderr, "Incoming:"); - for (i = 0; i < argc; i++) - fprintf (stderr, " %s", argv[i]); - fprintf (stderr, "\n"); -#endif - - g77_xargc = argc; - g77_xargv = argv; - g77_newargc = 0; - g77_newargv = (const char **) argv; - - /* First pass through arglist. - - If -nostdlib or a "turn-off-linking" option is anywhere in the - command line, don't do any library-option processing (except - relating to -x). Also, if -v is specified, but no other options - that do anything special (allowing -V version, etc.), remember - to add special stuff to make gcc command actually invoke all - the different phases of the compilation process so all the version - numbers can be seen. - - Also, here is where all problems with missing arguments to options - are caught. If this loop is exited normally, it means all options - have the appropriate number of arguments as far as the rest of this - program is concerned. */ - - for (i = 1; i < argc; ++i) - { - if ((argv[i][0] == '+') && (argv[i][1] == 'e')) - { - continue; - } - - if ((argv[i][0] != '-') || (argv[i][1] == '\0')) - { - ++n_infiles; - continue; - } - - lookup_option (&opt, &skip, NULL, argv[i]); - - switch (opt) - { - case OPTION_nostdlib: - case OPTION_c: - case OPTION_S: - case OPTION_syntax_only: - case OPTION_E: - case OPTION_M: - case OPTION_MM: - /* These options disable linking entirely or linking of the - standard libraries. */ - library = 0; - break; - - case OPTION_l: - ++n_infiles; - break; - - case OPTION_o: - ++n_outfiles; - break; - - case OPTION_v: - verbose = 1; - break; - - case OPTION_b: - case OPTION_B: - case OPTION_L: - case OPTION_i: - case OPTION_V: - /* These options are useful in conjunction with -v to get - appropriate version info. */ - break; - - case OPTION_version: - printf ("\ -GNU Fortran (GCC %s) %s\n\ -Copyright (C) 2002 Free Software Foundation, Inc.\n\ -\n\ -GNU Fortran comes with NO WARRANTY, to the extent permitted by law.\n\ -You may redistribute copies of GNU Fortran\n\ -under the terms of the GNU General Public License.\n\ -For more information about these matters, see the file named COPYING\n\ -or type the command `info -f g77 Copying'.\n\ -", version_string, ffe_version_string); - exit (0); - break; - - case OPTION_help: - /* Let gcc.c handle this, as it has a really - cool facility for handling --help and --verbose --help. */ - return; - - case OPTION_driver: - fatal ("--driver no longer supported"); - break; - - default: - break; - } - - /* This is the one place we check for missing arguments in the - program. */ - - if (i + skip < argc) - i += skip; - else - fatal ("argument to `%s' missing", argv[i]); - } - - if ((n_outfiles != 0) && (n_infiles == 0)) - fatal ("no input files; unwilling to write output files"); - - /* If there are no input files, no need for the library. */ - if (n_infiles == 0) - library = 0; - - /* Second pass through arglist, transforming arguments as appropriate. */ - - append_arg (argv[0]); /* Start with command name, of course. */ - - for (i = 1; i < argc; ++i) - { - if (argv[i][0] == '\0') - { - append_arg (argv[i]); /* Interesting. Just append as is. */ - continue; - } - - if ((argv[i][0] == '-') && (argv[i][1] != 'l')) - { - /* Not a filename or library. */ - - if (saw_library == 1 && need_math) /* -l. */ - append_arg (MATH_LIBRARY); - - saw_library = 0; - - lookup_option (&opt, &skip, &arg, argv[i]); - - if (argv[i][1] == '\0') - { - append_arg (argv[i]); /* "-" == Standard input. */ - continue; - } - - if (opt == OPTION_x) - { - /* Track input language. */ - const char *lang; - - if (arg == NULL) - lang = argv[i+1]; - else - lang = arg; - - saw_speclang = (strcmp (lang, "none") != 0); - } - - append_arg (argv[i]); - - for (; skip != 0; --skip) - append_arg (argv[++i]); - - continue; - } - - /* A filename/library, not an option. */ - - if (saw_speclang) - saw_library = 0; /* -xfoo currently active. */ - else - { /* -lfoo or filename. */ - if (strcmp (argv[i], MATH_LIBRARY) == 0 -#ifdef ALT_LIBM - || strcmp (argv[i], ALT_LIBM) == 0 -#endif - ) - { - if (saw_library == 1) - saw_library = 2; /* -l -lm. */ - else - { - if (0 == use_init) - { - append_arg (FORTRAN_INIT); - use_init = 1; - } - append_arg (FORTRAN_LIBRARY); - } - } - else if (strcmp (argv[i], FORTRAN_LIBRARY) == 0) - saw_library = 1; /* -l. */ - else - { /* Other library, or filename. */ - if (saw_library == 1 && need_math) - append_arg (MATH_LIBRARY); - saw_library = 0; - } - } - append_arg (argv[i]); - } - - /* Append `-lg2c -lm' as necessary. */ - - if (library) - { /* Doing a link and no -nostdlib. */ - if (saw_speclang) - append_arg ("-xnone"); - - switch (saw_library) - { - case 0: - if (0 == use_init) - { - append_arg (FORTRAN_INIT); - use_init = 1; - } - append_arg (library); - case 1: - if (need_math) - append_arg (MATH_LIBRARY); - default: - break; - } - } - -#ifdef ENABLE_SHARED_LIBGCC - if (library) - { - int i; - - for (i = 1; i < g77_newargc; i++) - if (g77_newargv[i][0] == '-') - if (strcmp (g77_newargv[i], "-static-libgcc") == 0 - || strcmp (g77_newargv[i], "-static") == 0) - break; - - if (i == g77_newargc) - append_arg ("-shared-libgcc"); - } - -#endif - - if (verbose - && g77_newargv != g77_xargv) - { - fprintf (stderr, "Driving:"); - for (i = 0; i < g77_newargc; i++) - fprintf (stderr, " %s", g77_newargv[i]); - fprintf (stderr, "\n"); - } - - *in_argc = g77_newargc; - *in_argv = g77_newargv; -} - -/* Called before linking. Returns 0 on success and -1 on failure. */ -int lang_specific_pre_link () /* Not used for F77. */ -{ - return 0; -} - -/* Number of extra output files that lang_specific_pre_link may generate. */ -int lang_specific_extra_outfiles = 0; /* Not used for F77. */