861ef92859
gcc/java: * java-tree.h (otable_methods, otable_decl, otable_syms_decl, otable_type, otable_ptr_type, method_symbol_type, method_symbols_array_type, method_symbols_array_ptr_type): New field/global tree definitions. (flag_indirect_dispatch): New flag. * decl.c (java_init_decl_processing): Initialize new otable and otable_syms type nodes and decls. Add new field "index" to method_type_node. * class.c (build_method_symbols_entry): New function. (make_method_value): Set "index" to to method's vtable index for virtual methods when indirect-dispatch is not used. (make_class_data): For indirect-dispatch, dont emit the dtable_decl, and set vtable_method_count to -1. Set otable and otable_syms field if indirect-dispatch is used and there was something to put in them. (build_method_symbols_entry): New function. (emit_offset_symbol_table): New function. * expr.c (get_offset_table_index): New function. (build_invokevirtual): Build array reference to otable at the index returned by get_offset_table_index, and use the result as the vtable offset. (build_invokeinterface): Similar. * jcf-parse.c (yyparse): If indirect-dispatch, call emit_offset_symbol_table at the end of compilation, after all classes have been generated. * jvspec.c: Don't pass findirect-dispatch to jvgenmain. * lang.c (flag_indirect_dispatch): Define. (lang_f_options): Add indirect-dispatch flag. libjava: * include/jvm.h (_Jv_VTable::idx_to_offset): New method. * java/lang/natClassLoader.cc (_Jv_PrepareCompiledClass): Call _Jv_MakeVTable and _Jv_LinkOffsetTable if needed. * java/lang/Class.h (_Jv_Method): Add "index" field. (_Jv_MethodSymbol): New struct type. (_Jv_LinkOffsetTable, _Jv_LayoutVTableMethods, _Jv_SetVTableEntries, _Jv_MakeVTable): Friends. (otable, otable_syms): New Class fields. * java/lang/natClass.cc (_Jv_LinkOffsetTable): New function. (isVirtualMethod): New static function. (_Jv_LayoutVTableMethods): New function. (_Jv_SetVTableEntries): New function. (_Jv_MakeVTable): New function. From-SVN: r48038
598 lines
16 KiB
C
598 lines
16 KiB
C
/* Specific flags and argument handling of the front-end of the
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GNU compiler for the Java(TM) language.
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Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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Java and all Java-based marks are trademarks or registered trademarks
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of Sun Microsystems, Inc. in the United States and other countries.
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The Free Software Foundation is independent of Sun Microsystems, Inc. */
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#include "config.h"
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#include "system.h"
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#include "gcc.h"
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/* Name of spec file. */
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#define SPEC_FILE "libgcj.spec"
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/* This bit is set if we saw a `-xfoo' language specification. */
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#define LANGSPEC (1<<1)
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/* True if this arg is a parameter to the previous option-taking arg. */
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#define PARAM_ARG (1<<2)
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/* True if this arg is a .java input file name. */
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#define JAVA_FILE_ARG (1<<3)
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/* True if this arg is a .class input file name. */
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#define CLASS_FILE_ARG (1<<4)
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/* True if this arg is a .zip or .jar input file name. */
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#define ZIP_FILE_ARG (1<<5)
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/* True if this arg is @FILE - where FILE contains a list of filenames. */
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#define INDIRECT_FILE_ARG (1<<6)
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/* True if this arg is a resource file. */
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#define RESOURCE_FILE_ARG (1<<7)
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static char *find_spec_file PARAMS ((const char *));
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static const char *main_class_name = NULL;
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int lang_specific_extra_outfiles = 0;
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/* True if we should add -shared-libgcc to the command-line. */
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int shared_libgcc = 1;
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const char jvgenmain_spec[] =
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"jvgenmain %{D*} %b %{!pipe:%u.i} |\n\
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cc1 %{!pipe:%U.i} %1 \
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%{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
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%{g*} %{O*} \
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%{v:-version} %{pg:-p} %{p}\
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%{<fbounds-check} %{<fno-bounds-check}\
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%{<fassume-compiled} %{<fno-assume-compiled}\
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%{<fcompile-resource*}\
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%{<femit-class-file} %{<femit-class-files} %{<fencoding*}\
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%{<fuse-boehm-gc} %{<fhash-synchronization} %{<fjni}\
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%{<findirect-dispatch} \
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%{<fclasspath*} %{<fCLASSPATH*} %{<foutput-class-dir}\
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%{<fuse-divide-subroutine} %{<fno-use-divide-subroutine}\
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%{<fcheck-references} %{<fno-check-references}\
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%{<ffilelist-file}\
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%{f*} -fdollars-in-identifiers\
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%{aux-info*}\
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%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
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%{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
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%{!S:as %a %Y -o %d%w%u%O %{!pipe:%g.s} %A\n }";
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/* Return full path name of spec file if it is in DIR, or NULL if
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not. */
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static char *
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find_spec_file (dir)
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const char *dir;
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{
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char *spec;
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int x;
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struct stat sb;
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spec = (char *) xmalloc (strlen (dir) + sizeof (SPEC_FILE)
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+ sizeof ("-specs=") + 4);
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strcpy (spec, "-specs=");
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x = strlen (spec);
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strcat (spec, dir);
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strcat (spec, "/");
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strcat (spec, SPEC_FILE);
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if (! stat (spec + x, &sb))
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return spec;
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free (spec);
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return NULL;
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}
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void
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lang_specific_driver (in_argc, in_argv, in_added_libraries)
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int *in_argc;
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const char *const **in_argv;
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int *in_added_libraries;
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{
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int i, j;
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/* If non-zero, the user gave us the `-v' flag. */
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int saw_verbose_flag = 0;
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int saw_save_temps = 0;
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/* This will be 0 if we encounter a situation where we should not
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link in libgcj. */
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int library = 1;
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/* This will be 1 if multiple input files (.class and/or .java)
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should be passed to a single jc1 invocation. */
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int combine_inputs = 0;
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/* Index of last .java or .class argument. */
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int last_input_index;
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/* Number of .java and .class source file arguments seen. */
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int java_files_count = 0;
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int class_files_count = 0;
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/* Number of .zip or .jar file arguments seen. */
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int zip_files_count = 0;
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/* Number of '@FILES' arguments seen. */
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int indirect_files_count = 0;
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/* Name of file containing list of files to compile. */
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char *filelist_filename = 0;
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FILE *filelist_file = 0;
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/* The number of arguments being added to what's in argv, other than
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libraries. */
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int added = 2;
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/* Used to track options that take arguments, so we don't go wrapping
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those with -xc++/-xnone. */
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const char *quote = NULL;
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/* The new argument list will be contained in this. */
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const char **arglist;
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/* Non-zero if we saw a `-xfoo' language specification on the
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command line. Used to avoid adding our own -xc++ if the user
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already gave a language for the file. */
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int saw_speclang = 0;
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#if 0
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/* "-lm" or "-lmath" if it appears on the command line. */
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const char *saw_math ATTRIBUTE_UNUSED = 0;
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/* "-lc" if it appears on the command line. */
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const char *saw_libc ATTRIBUTE_UNUSED = 0;
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/* "-lgcjgc" if it appears on the command line. */
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const char *saw_gc ATTRIBUTE_UNUSED = 0;
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/* Saw `-l' option for the thread library. */
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const char *saw_threadlib ATTRIBUTE_UNUSED = 0;
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/* Saw `-lgcj' on command line. */
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int saw_libgcj ATTRIBUTE_UNUSED = 0;
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#endif
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/* Saw -R, -C or -o options, respectively. */
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int saw_R = 0;
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int saw_C = 0;
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int saw_o = 0;
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/* Saw some -O* or -g* option, respectively. */
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int saw_O = 0;
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int saw_g = 0;
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/* Saw a `-D' option. */
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int saw_D = 0;
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/* An array used to flag each argument that needs a bit set for
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LANGSPEC, MATHLIB, WITHLIBC, or GCLIB. */
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int *args;
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/* The total number of arguments with the new stuff. */
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int argc;
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/* The argument list. */
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const char *const *argv;
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/* The number of libraries added in. */
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int added_libraries;
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/* The total number of arguments with the new stuff. */
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int num_args = 1;
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/* Non-zero if linking is supposed to happen. */
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int will_link = 1;
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/* Non-zero if we want to find the spec file. */
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int want_spec_file = 1;
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/* The argument we use to specify the spec file. */
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char *spec_file = NULL;
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argc = *in_argc;
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argv = *in_argv;
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added_libraries = *in_added_libraries;
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args = (int *) xcalloc (argc, sizeof (int));
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for (i = 1; i < argc; i++)
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{
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/* If the previous option took an argument, we swallow it here. */
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if (quote)
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{
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quote = NULL;
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args[i] |= PARAM_ARG;
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continue;
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}
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/* We don't do this anymore, since we don't get them with minus
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signs on them. */
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if (argv[i][0] == '\0' || argv[i][1] == '\0')
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continue;
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if (argv[i][0] == '-')
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{
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if (library != 0 && (strcmp (argv[i], "-nostdlib") == 0
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|| strcmp (argv[i], "-nodefaultlibs") == 0))
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{
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library = 0;
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}
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else if (strncmp (argv[i], "-fmain=", 7) == 0)
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{
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main_class_name = argv[i] + 7;
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added--;
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}
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else if (strcmp (argv[i], "-fhelp") == 0)
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want_spec_file = 0;
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else if (strcmp (argv[i], "-v") == 0)
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{
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saw_verbose_flag = 1;
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if (argc == 2)
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{
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/* If they only gave us `-v', don't try to link
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in libgcj. */
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library = 0;
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}
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}
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else if (strncmp (argv[i], "-x", 2) == 0)
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saw_speclang = 1;
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else if (strcmp (argv[i], "-C") == 0)
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{
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saw_C = 1;
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want_spec_file = 0;
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if (library != 0)
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added -= 2;
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library = 0;
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will_link = 0;
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}
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else if (strcmp (argv[i], "-R") == 0)
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{
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saw_R = 1;
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quote = argv[i];
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want_spec_file = 0;
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if (library != 0)
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added -= 2;
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library = 0;
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will_link = 0;
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}
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else if (argv[i][1] == 'D')
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saw_D = 1;
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else if (argv[i][1] == 'g')
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saw_g = 1;
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else if (argv[i][1] == 'O')
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saw_O = 1;
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else if ((argv[i][2] == '\0'
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&& (char *)strchr ("bBVDUoeTuIYmLiA", argv[i][1]) != NULL)
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|| strcmp (argv[i], "-Tdata") == 0
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|| strcmp (argv[i], "-MT") == 0
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|| strcmp (argv[i], "-MF") == 0)
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{
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if (strcmp (argv[i], "-o") == 0)
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saw_o = 1;
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quote = argv[i];
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}
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else if (strcmp(argv[i], "-classpath") == 0
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|| strcmp(argv[i], "-CLASSPATH") == 0)
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{
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quote = argv[i];
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added -= 1;
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}
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else if (library != 0
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&& ((argv[i][2] == '\0'
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&& (char *) strchr ("cSEM", argv[i][1]) != NULL)
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|| strcmp (argv[i], "-MM") == 0))
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{
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/* Don't specify libraries if we won't link, since that would
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cause a warning. */
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library = 0;
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added -= 2;
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/* Remember this so we can confirm -fmain option. */
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will_link = 0;
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}
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else if (strcmp (argv[i], "-d") == 0)
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{
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/* `-d' option is for javac compatibility. */
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quote = argv[i];
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added -= 1;
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}
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else if (strcmp (argv[i], "-fsyntax-only") == 0
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|| strcmp (argv[i], "--syntax-only") == 0)
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{
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want_spec_file = 0;
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library = 0;
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will_link = 0;
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continue;
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}
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else if (strcmp (argv[i], "-save-temps") == 0)
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saw_save_temps = 1;
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else if (strcmp (argv[i], "-static-libgcc") == 0
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|| strcmp (argv[i], "-static") == 0)
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shared_libgcc = 0;
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else
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/* Pass other options through. */
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continue;
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}
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else
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{
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int len;
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if (saw_speclang)
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{
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saw_speclang = 0;
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continue;
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}
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if (saw_R)
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{
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args[i] |= RESOURCE_FILE_ARG;
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last_input_index = i;
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added += 2; /* for -xjava and -xnone */
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}
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if (argv[i][0] == '@')
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{
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args[i] |= INDIRECT_FILE_ARG;
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indirect_files_count++;
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added += 2; /* for -xjava and -xnone */
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}
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len = strlen (argv[i]);
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if (len > 5 && strcmp (argv[i] + len - 5, ".java") == 0)
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{
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args[i] |= JAVA_FILE_ARG;
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java_files_count++;
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last_input_index = i;
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}
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if (len > 6 && strcmp (argv[i] + len - 6, ".class") == 0)
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{
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args[i] |= CLASS_FILE_ARG;
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class_files_count++;
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last_input_index = i;
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}
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if (len > 4
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&& (strcmp (argv[i] + len - 4, ".zip") == 0
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|| strcmp (argv[i] + len - 4, ".jar") == 0))
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{
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args[i] |= ZIP_FILE_ARG;
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zip_files_count++;
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last_input_index = i;
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}
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}
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}
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if (quote)
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fatal ("argument to `%s' missing\n", quote);
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if (saw_D && ! main_class_name)
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fatal ("can't specify `-D' without `--main'\n");
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num_args = argc + added;
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if (saw_R)
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{
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if (! saw_o)
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fatal ("-R requires -o");
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}
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if (saw_C)
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{
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num_args += 3;
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if (class_files_count + zip_files_count > 0)
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{
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error ("warning: already-compiled .class files ignored with -C");
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num_args -= class_files_count + zip_files_count;
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class_files_count = 0;
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zip_files_count = 0;
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}
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num_args += 2; /* For -o NONE. */
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if (saw_o)
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fatal ("cannot specify both -C and -o");
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}
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if ((saw_o && java_files_count + class_files_count + zip_files_count > 1)
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|| (saw_C && java_files_count > 1)
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|| (indirect_files_count > 0
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&& java_files_count + class_files_count + zip_files_count > 0))
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combine_inputs = 1;
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if (combine_inputs)
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{
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filelist_filename = make_temp_file ("jx");
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if (filelist_filename == NULL)
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fatal ("cannot create temporary file");
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record_temp_file (filelist_filename, ! saw_save_temps, 0);
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filelist_file = fopen (filelist_filename, "w");
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if (filelist_file == NULL)
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pfatal_with_name (filelist_filename);
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num_args -= java_files_count + class_files_count + zip_files_count;
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num_args += 2; /* for the combined arg and "-xjava" */
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}
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/* If we know we don't have to do anything, bail now. */
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#if 0
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if (! added && ! library && main_class_name == NULL && ! saw_C)
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{
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free (args);
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return;
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}
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#endif
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if (main_class_name)
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{
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lang_specific_extra_outfiles++;
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}
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if (saw_g + saw_O == 0)
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num_args++;
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num_args++;
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if (combine_inputs || indirect_files_count > 0)
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num_args += 1; /* for "-ffilelist-file" */
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if (combine_inputs && indirect_files_count > 0)
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fatal("using both @FILE with multiple files not implemented");
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/* There's no point adding -shared-libgcc if we don't have a shared
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libgcc. */
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#ifndef ENABLE_SHARED_LIBGCC
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shared_libgcc = 0;
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#endif
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num_args += shared_libgcc;
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arglist = (const char **) xmalloc ((num_args + 1) * sizeof (char *));
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j = 0;
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for (i = 0; i < argc; i++, j++)
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{
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arglist[j] = argv[i];
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if ((args[i] & PARAM_ARG) || i == 0)
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continue;
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if ((args[i] & RESOURCE_FILE_ARG) != 0)
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{
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arglist[j++] = "-xjava";
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arglist[j++] = argv[i];
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arglist[j] = "-xnone";
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}
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if (strcmp (argv[i], "-R") == 0)
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{
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arglist[j] = concat ("-fcompile-resource=",
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*argv[i+1] == '/' ? "" : "/",
|
|
argv[i+1], NULL);
|
|
i++;
|
|
continue;
|
|
}
|
|
|
|
if (strcmp (argv[i], "-classpath") == 0
|
|
|| strcmp (argv[i], "-CLASSPATH") == 0)
|
|
{
|
|
arglist[j] = concat ("-f", argv[i]+1, "=", argv[i+1], NULL);
|
|
i++;
|
|
continue;
|
|
}
|
|
|
|
if (strcmp (argv[i], "-d") == 0)
|
|
{
|
|
arglist[j] = concat ("-foutput-class-dir=", argv[i + 1], NULL);
|
|
++i;
|
|
continue;
|
|
}
|
|
|
|
if (spec_file == NULL && strncmp (argv[i], "-L", 2) == 0)
|
|
spec_file = find_spec_file (argv[i] + 2);
|
|
|
|
if (strncmp (argv[i], "-fmain=", 7) == 0)
|
|
{
|
|
if (! will_link)
|
|
fatal ("cannot specify `main' class when not linking");
|
|
--j;
|
|
continue;
|
|
}
|
|
|
|
if ((args[i] & INDIRECT_FILE_ARG) != 0)
|
|
{
|
|
arglist[j++] = "-xjava";
|
|
arglist[j++] = argv[i]+1; /* Drop '@'. */
|
|
arglist[j] = "-xnone";
|
|
}
|
|
|
|
if ((args[i] & (CLASS_FILE_ARG|ZIP_FILE_ARG)) && saw_C)
|
|
{
|
|
--j;
|
|
continue;
|
|
}
|
|
|
|
if (combine_inputs
|
|
&& (args[i] & (CLASS_FILE_ARG|JAVA_FILE_ARG|ZIP_FILE_ARG)) != 0)
|
|
{
|
|
fputs (argv[i], filelist_file);
|
|
fputc ('\n', filelist_file);
|
|
--j;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (combine_inputs || indirect_files_count > 0)
|
|
arglist[j++] = "-ffilelist-file";
|
|
|
|
if (combine_inputs)
|
|
{
|
|
if (fclose (filelist_file))
|
|
pfatal_with_name (filelist_filename);
|
|
arglist[j++] = "-xjava";
|
|
arglist[j++] = filelist_filename;
|
|
}
|
|
|
|
/* If we saw no -O or -g option, default to -g1, for javac compatibility. */
|
|
if (saw_g + saw_O == 0)
|
|
arglist[j++] = "-g1";
|
|
|
|
/* Read the specs file corresponding to libgcj.
|
|
If we didn't find the spec file on the -L path, then we hope it
|
|
is somewhere in the standard install areas. */
|
|
if (want_spec_file)
|
|
arglist[j++] = spec_file == NULL ? "-specs=libgcj.spec" : spec_file;
|
|
|
|
if (saw_C)
|
|
{
|
|
arglist[j++] = "-fsyntax-only";
|
|
arglist[j++] = "-femit-class-files";
|
|
arglist[j++] = "-S";
|
|
arglist[j++] = "-o";
|
|
arglist[j++] = "NONE";
|
|
}
|
|
|
|
if (shared_libgcc)
|
|
arglist[j++] = "-shared-libgcc";
|
|
|
|
arglist[j] = NULL;
|
|
|
|
*in_argc = j;
|
|
*in_argv = arglist;
|
|
*in_added_libraries = added_libraries;
|
|
}
|
|
|
|
int
|
|
lang_specific_pre_link ()
|
|
{
|
|
int err;
|
|
if (main_class_name == NULL)
|
|
return 0;
|
|
/* Append `main' to make the filename unique and allow
|
|
|
|
gcj --main=hello -save-temps hello.java
|
|
|
|
to work. jvgenmain needs to strip this `main' to arrive at the correct
|
|
class name. Append dummy `.c' that can be stripped by set_input so %b
|
|
is correct. */
|
|
set_input (concat (main_class_name, "main.c", NULL));
|
|
err = do_spec (jvgenmain_spec);
|
|
if (err == 0)
|
|
{
|
|
/* Shift the outfiles array so the generated main comes first.
|
|
This is important when linking against (non-shared) libraries,
|
|
since otherwise we risk (a) nothing getting linked or
|
|
(b) 'main' getting picked up from a library. */
|
|
int i = n_infiles;
|
|
const char *generated = outfiles[i];
|
|
while (--i >= 0)
|
|
outfiles[i + 1] = outfiles[i];
|
|
outfiles[0] = generated;
|
|
}
|
|
return err;
|
|
}
|