685 lines
18 KiB
C
685 lines
18 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, 2002, 2003, 2004,
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2005, 2006, 2007 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC 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 3, or (at your option)
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any later version.
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GCC 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 GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>.
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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 "coretypes.h"
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#include "tm.h"
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#include "gcc.h"
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#include "jcf.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 (const char *);
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static int verify_class_name (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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static const char jvgenmain_spec[] =
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"jvgenmain %{findirect-dispatch} %{D*} %b %m.i |\n\
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cc1 %m.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* %<fassert %<fno-assert \
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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 %<fnew-verifier\
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%<fno-store-check %<foutput-class-dir\
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%<fclasspath* %<fCLASSPATH* %<fbootclasspath*\
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%<fextdirs*\
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%<fuse-divide-subroutine %<fno-use-divide-subroutine\
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%<fuse-atomic-builtins %<fno-use-atomic-builtins\
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%<fcheck-references %<fno-check-references\
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%<ffilelist-file %<fsaw-java-file %<fsource* %<ftarget*\
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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}}\
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%(invoke_as)";
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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 (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 = XNEWVEC (char, 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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#define JAVA_START_CHAR_P(c) (c < 128 && (ISIDST (c) || c == '$'))
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#define JAVA_PART_CHAR_P(c) (c < 128 \
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&& (ISIDNUM (c) \
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|| c == '$' \
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|| (c >= 0x00 && c <= 0x08) \
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|| (c >= 0x0e && c <= 0x1b) \
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|| c == 0x7f))
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/* Verify that NAME is a valid Java class name that might contain
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`main'. Return 0 on failure. */
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static int
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verify_class_name (const char *name)
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{
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/* FIXME: what encoding do we use for command-line arguments? For
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now we assume plain ASCII, which of course is wrong. */
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while (*name)
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{
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int ch = *name++;
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if (ch < 0 || ! JAVA_START_CHAR_P (ch))
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return 0;
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while (*name)
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{
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ch = *name++;
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if (ch < 0)
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return 0;
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/* We found a break between class names. Next character
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must be an identifier start again. */
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if (ch == '.')
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break;
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if (! JAVA_PART_CHAR_P (ch))
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return 0;
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}
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}
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return 1;
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}
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void
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lang_specific_driver (int *in_argc, 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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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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/* 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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/* Nonzero 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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/* Saw --resource, -C or -o options, respectively. */
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int saw_resource = 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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/* Nonzero if linking is supposed to happen. */
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int will_link = 1;
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/* Nonzero 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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/* If linking, nonzero if the BC-ABI is in use. */
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int link_for_bc_abi = 0;
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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 = XCNEWVEC (int, argc);
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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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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 (strncmp (argv[i], "-fcompile-resource=", 19) == 0)
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{
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saw_resource = 1;
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want_spec_file = 0;
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if (library != 0)
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--added;
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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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&& strchr ("bBVDUoeTuIYmLiAI", 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], "-bootclasspath") == 0
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|| strcmp (argv[i], "-CLASSPATH") == 0
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|| strcmp (argv[i], "-encoding") == 0
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|| strcmp (argv[i], "-extdirs") == 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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&& 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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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 if (strcmp (argv[i], "-findirect-dispatch") == 0
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|| strcmp (argv[i], "--indirect-dispatch") == 0)
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{
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link_for_bc_abi = 1;
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}
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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_resource)
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{
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args[i] |= RESOURCE_FILE_ARG;
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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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}
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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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}
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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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}
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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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if (main_class_name && ! verify_class_name (main_class_name))
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fatal ("'%s' is not a valid class name", main_class_name);
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num_args = argc + added;
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if (saw_resource)
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{
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if (! saw_o)
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fatal ("--resource 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 += 3; /* for the combined arg "-xjava", and "-xnone" */
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}
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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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/* An additional entry for the classpath. */
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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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if (java_files_count > 0)
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++num_args;
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num_args += shared_libgcc;
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num_args += link_for_bc_abi;
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arglist = XNEWVEC (const char *, num_args + 1);
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j = 0;
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arglist[j++] = argv[0];
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if (combine_inputs || indirect_files_count > 0)
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arglist[j++] = "-ffilelist-file";
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if (combine_inputs)
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{
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arglist[j++] = "-xjava";
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arglist[j++] = filelist_filename;
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arglist[j++] = "-xnone";
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}
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if (java_files_count > 0)
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arglist[j++] = "-fsaw-java-file";
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jcf_path_init ();
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for (i = 1; 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))
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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 (argv[i][0] == '-' && argv[i][1] == 'I')
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{
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const char *arg;
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if (argv[i][2] == '\0')
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{
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gcc_assert (i + 1 < argc && (args[i + 1] & PARAM_ARG) != 0);
|
|
arg = argv[i + 1];
|
|
/* Drop the argument. */
|
|
++i;
|
|
}
|
|
else
|
|
arg = &argv[i][2];
|
|
jcf_path_include_arg (arg);
|
|
--j;
|
|
continue;
|
|
}
|
|
if (! strcmp (argv[i], "-classpath")
|
|
|| ! strcmp (argv[i], "-CLASSPATH"))
|
|
{
|
|
jcf_path_classpath_arg (argv[i + 1]);
|
|
++i;
|
|
--j;
|
|
continue;
|
|
}
|
|
if (! strcmp (argv[i], "-bootclasspath"))
|
|
{
|
|
jcf_path_bootclasspath_arg (argv[i + 1]);
|
|
++i;
|
|
--j;
|
|
continue;
|
|
}
|
|
if (! strncmp (argv[i], "-fCLASSPATH=", 12)
|
|
|| ! strncmp (argv[i], "-fclasspath=", 12))
|
|
{
|
|
const char *p = strchr (argv[i], '=');
|
|
jcf_path_classpath_arg (p + 1);
|
|
--j;
|
|
continue;
|
|
}
|
|
if (! strncmp (argv[i], "-fbootclasspath=", 16))
|
|
{
|
|
const char *p = strchr (argv[i], '=');
|
|
jcf_path_bootclasspath_arg (p + 1);
|
|
--j;
|
|
continue;
|
|
}
|
|
if (! strcmp (argv[i], "-extdirs"))
|
|
{
|
|
jcf_path_extdirs_arg (argv[i + 1]);
|
|
++i;
|
|
--j;
|
|
continue;
|
|
}
|
|
|
|
if (strcmp (argv[i], "-encoding") == 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;
|
|
}
|
|
}
|
|
|
|
/* Handle classpath setting. We specify the bootclasspath since
|
|
that requires the fewest changes to our existing code... */
|
|
jcf_path_seal (0);
|
|
arglist[j++] = jcf_path_compute ("-fbootclasspath=");
|
|
|
|
if (combine_inputs)
|
|
{
|
|
if (fclose (filelist_file))
|
|
pfatal_with_name (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";
|
|
|
|
if (link_for_bc_abi)
|
|
arglist[j++] = "-s-bc-abi";
|
|
|
|
arglist[j] = NULL;
|
|
|
|
*in_argc = j;
|
|
*in_argv = arglist;
|
|
*in_added_libraries = added_libraries;
|
|
}
|
|
|
|
int
|
|
lang_specific_pre_link (void)
|
|
{
|
|
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;
|
|
}
|