-/* Specific flags and argument handling of the C++ front-end.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+/* Specific flags and argument handling of the C++ front end.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2007, 2008, 2009 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC 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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC 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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
#include "gcc.h"
/* This bit is set if we saw a `-xfoo' language specification. */
#define MATHLIB (1<<2)
/* This bit is set if they did `-lc'. */
#define WITHLIBC (1<<3)
+/* Skip this option. */
+#define SKIPOPT (1<<4)
#ifndef MATH_LIBRARY
#define MATH_LIBRARY "-lm"
#endif
+#ifndef MATH_LIBRARY_PROFILE
+#define MATH_LIBRARY_PROFILE MATH_LIBRARY
+#endif
#ifndef LIBSTDCXX
#define LIBSTDCXX "-lstdc++"
#endif
+#ifndef LIBSTDCXX_PROFILE
+#define LIBSTDCXX_PROFILE LIBSTDCXX
+#endif
+#ifndef LIBSTDCXX_STATIC
+#define LIBSTDCXX_STATIC NULL
+#endif
void
-lang_specific_driver (in_argc, in_argv, in_added_libraries)
- int *in_argc;
- const char *const **in_argv;
- int *in_added_libraries;
+lang_specific_driver (int *in_argc, const char *const **in_argv,
+ int *in_added_libraries)
{
int i, j;
- /* If non-zero, the user gave us the `-v' flag. */
- int saw_verbose_flag = 0;
+ /* If nonzero, the user gave us the `-p' or `-pg' flag. */
+ int saw_profile_flag = 0;
- /* This will be 0 if we encounter a situation where we should not
- link in libstdc++. */
- int library = 1;
+ /* What do with libstdc++:
+ -1 means we should not link in libstdc++
+ 0 means we should link in libstdc++ if it is needed
+ 1 means libstdc++ is needed and should be linked in.
+ 2 means libstdc++ is needed and should be linked statically. */
+ int library = 0;
/* The number of arguments being added to what's in argv, other than
libraries. We use this to track the number of times we've inserted
-xc++/-xnone. */
- int added = 2;
+ int added = 0;
/* Used to track options that take arguments, so we don't go wrapping
those with -xc++/-xnone. */
/* The new argument list will be contained in this. */
const char **arglist;
- /* Non-zero if we saw a `-xfoo' language specification on the
+ /* Nonzero if we saw a `-xfoo' language specification on the
command line. Used to avoid adding our own -xc++ if the user
already gave a language for the file. */
int saw_speclang = 0;
/* By default, we throw on the math library if we have one. */
int need_math = (MATH_LIBRARY[0] != '\0');
+ /* True if we saw -static. */
+ int static_link = 0;
+
/* True if we should add -shared-libgcc to the command-line. */
int shared_libgcc = 1;
argv = *in_argv;
added_libraries = *in_added_libraries;
- args = (int *) xcalloc (argc, sizeof (int));
+ args = XCNEWVEC (int, argc);
for (i = 1; i < argc; i++)
{
if (argv[i][0] == '-')
{
- if (library != 0 && (strcmp (argv[i], "-nostdlib") == 0
- || strcmp (argv[i], "-nodefaultlibs") == 0))
+ if (strcmp (argv[i], "-nostdlib") == 0
+ || strcmp (argv[i], "-nodefaultlibs") == 0)
{
- library = 0;
+ library = -1;
}
- else if (strcmp (argv[i], "-lm") == 0
- || strcmp (argv[i], "-lmath") == 0
- || strcmp (argv[i], MATH_LIBRARY) == 0
-#ifdef ALT_LIBM
- || strcmp (argv[i], ALT_LIBM) == 0
-#endif
- )
+ else if (strcmp (argv[i], MATH_LIBRARY) == 0)
{
args[i] |= MATHLIB;
need_math = 0;
}
else if (strcmp (argv[i], "-lc") == 0)
args[i] |= WITHLIBC;
- else if (strcmp (argv[i], "-v") == 0)
+ else if (strcmp (argv[i], "-pg") == 0 || strcmp (argv[i], "-p") == 0)
+ saw_profile_flag++;
+ else if (strncmp (argv[i], "-x", 2) == 0)
{
- saw_verbose_flag = 1;
- if (argc == 2)
- {
- /* If they only gave us `-v', don't try to link
- in libg++. */
- library = 0;
- }
+ const char * arg;
+ if (argv[i][2] != '\0')
+ arg = argv[i]+2;
+ else if ((argv[i+1]) != NULL)
+ /* We need to swallow arg on next loop. */
+ quote = arg = argv[i+1];
+ else /* Error condition, message will be printed later. */
+ arg = "";
+ if (library == 0
+ && (strcmp (arg, "c++") == 0
+ || strcmp (arg, "c++-cpp-output") == 0
+ || strcmp (arg, "objective-c++") == 0
+ || strcmp (arg, "objective-c++-cpp-output") == 0))
+ library = 1;
+
+ saw_speclang = 1;
}
- else if (strncmp (argv[i], "-x", 2) == 0)
- saw_speclang = 1;
+ else if (strcmp (argv[i], "-ObjC++") == 0)
+ {
+ if (library == 0)
+ library = 1;
+ saw_speclang = 1;
+ }
+ /* Arguments that go directly to the linker might be .o files,
+ or something, and so might cause libstdc++ to be needed. */
+ else if (strcmp (argv[i], "-Xlinker") == 0)
+ {
+ quote = argv[i];
+ if (library == 0)
+ library = 1;
+ }
+ else if (strncmp (argv[i], "-Wl,", 4) == 0)
+ library = (library == 0) ? 1 : library;
+ /* Unrecognized libraries (e.g. -lfoo) may require libstdc++. */
+ else if (strncmp (argv[i], "-l", 2) == 0)
+ library = (library == 0) ? 1 : library;
else if (((argv[i][2] == '\0'
- && (char *)strchr ("bBVDUoeTuIYmLiA", argv[i][1]) != NULL)
- || strcmp (argv[i], "-Xlinker") == 0
+ && strchr ("bBVDUoeTuIYmLiA", argv[i][1]) != NULL)
|| strcmp (argv[i], "-Tdata") == 0))
quote = argv[i];
- else if (library != 0 && ((argv[i][2] == '\0'
- && (char *) strchr ("cSEM", argv[i][1]) != NULL)
- || strcmp (argv[i], "-MM") == 0
- || strcmp (argv[i], "-fsyntax-only") == 0))
+ else if ((argv[i][2] == '\0'
+ && strchr ("cSEM", argv[i][1]) != NULL)
+ || strcmp (argv[i], "-MM") == 0
+ || strcmp (argv[i], "-fsyntax-only") == 0)
{
/* Don't specify libraries if we won't link, since that would
cause a warning. */
- library = 0;
- added -= 2;
+ library = -1;
}
- else if (strcmp (argv[i], "-static-libgcc") == 0
- || strcmp (argv[i], "-static") == 0)
+ else if (strcmp (argv[i], "-static") == 0)
+ static_link = 1;
+ else if (strcmp (argv[i], "-static-libgcc") == 0)
shared_libgcc = 0;
+ else if (strcmp (argv[i], "-static-libstdc++") == 0)
+ {
+ library = library >= 0 ? 2 : library;
+ args[i] |= SKIPOPT;
+ }
+ else if (DEFAULT_WORD_SWITCH_TAKES_ARG (&argv[i][1]))
+ i++;
else
/* Pass other options through. */
continue;
}
else
{
- int len;
+ int len;
if (saw_speclang)
{
continue;
}
- /* If the filename ends in .c or .i, put options around it.
+ /* If the filename ends in .[chi], put options around it.
But not if a specified -x option is currently active. */
len = strlen (argv[i]);
if (len > 2
- && (argv[i][len - 1] == 'c' || argv[i][len - 1] == 'i')
+ && (argv[i][len - 1] == 'c'
+ || argv[i][len - 1] == 'i'
+ || argv[i][len - 1] == 'h')
&& argv[i][len - 2] == '.')
{
args[i] |= LANGSPEC;
added += 2;
}
+
+ /* If we don't know that this is a header file, we might
+ need to be linking in the libraries. */
+ if (library == 0)
+ {
+ if ((len <= 2 || strcmp (argv[i] + (len - 2), ".H") != 0)
+ && (len <= 2 || strcmp (argv[i] + (len - 2), ".h") != 0)
+ && (len <= 4 || strcmp (argv[i] + (len - 4), ".hpp") != 0)
+ && (len <= 3 || strcmp (argv[i] + (len - 3), ".hp") != 0)
+ && (len <= 4 || strcmp (argv[i] + (len - 4), ".hxx") != 0)
+ && (len <= 4 || strcmp (argv[i] + (len - 4), ".h++") != 0)
+ && (len <= 4 || strcmp (argv[i] + (len - 4), ".HPP") != 0)
+ && (len <= 4 || strcmp (argv[i] + (len - 4), ".tcc") != 0)
+ && (len <= 3 || strcmp (argv[i] + (len - 3), ".hh") != 0))
+ library = 1;
+ }
}
}
if (quote)
- fatal ("argument to `%s' missing\n", quote);
-
- /* If we know we don't have to do anything, bail now. */
- if (! added && ! library)
- {
- free (args);
- return;
- }
+ fatal ("argument to '%s' missing\n", quote);
/* There's no point adding -shared-libgcc if we don't have a shared
libgcc. */
shared_libgcc = 0;
#endif
- /* Make sure to have room for the trailing NULL argument. */
- num_args = argc + added + need_math + shared_libgcc + 1;
- arglist = (const char **) xmalloc (num_args * sizeof (char *));
+ /* Make sure to have room for the trailing NULL argument.
+ Add one for shared_libgcc or extra static library. */
+ num_args = argc + added + need_math + (library > 0) * 4 + 2;
+ arglist = XNEWVEC (const char *, num_args);
i = 0;
j = 0;
-
+
/* Copy the 0th argument, i.e., the name of the program itself. */
arglist[i++] = argv[j++];
/* Make sure -lstdc++ is before the math library, since libstdc++
itself uses those math routines. */
- if (!saw_math && (args[i] & MATHLIB) && library)
+ if (!saw_math && (args[i] & MATHLIB) && library > 0)
{
--j;
saw_math = argv[i];
}
- if (!saw_libc && (args[i] & WITHLIBC) && library)
+ if (!saw_libc && (args[i] & WITHLIBC) && library > 0)
{
--j;
saw_libc = argv[i];
}
- /* Wrap foo.c and foo.i files in a language specification to
+ /* Wrap foo.[chi] files in a language specification to
force the gcc compiler driver to run cc1plus on them. */
if (args[i] & LANGSPEC)
{
int len = strlen (argv[i]);
- if (argv[i][len - 1] == 'i')
- arglist[j++] = "-xc++-cpp-output";
- else
- arglist[j++] = "-xc++";
+ switch (argv[i][len - 1])
+ {
+ case 'c':
+ arglist[j++] = "-xc++";
+ break;
+ case 'i':
+ arglist[j++] = "-xc++-cpp-output";
+ break;
+ case 'h':
+ arglist[j++] = "-xc++-header";
+ break;
+ default:
+ gcc_unreachable ();
+ }
arglist[j++] = argv[i];
arglist[j] = "-xnone";
}
+ if ((args[i] & SKIPOPT) != 0)
+ --j;
+
i++;
j++;
}
/* Add `-lstdc++' if we haven't already done so. */
- if (library)
+ if (library > 0)
{
- arglist[j++] = LIBSTDCXX;
- added_libraries++;
+#ifdef HAVE_LD_STATIC_DYNAMIC
+ if (library > 1 && !static_link)
+ {
+ arglist[j] = "-Wl,-Bstatic";
+ j++;
+ }
+#endif
+ arglist[j] = saw_profile_flag ? LIBSTDCXX_PROFILE : LIBSTDCXX;
+ if (arglist[j][0] != '-' || arglist[j][1] == 'l')
+ added_libraries++;
+ j++;
+ /* Add target-dependent static library, if necessary. */
+ if ((static_link || library > 1) && LIBSTDCXX_STATIC != NULL)
+ {
+ arglist[j] = LIBSTDCXX_STATIC;
+ if (arglist[j][0] != '-' || arglist[j][1] == 'l')
+ added_libraries++;
+ j++;
+ }
+#ifdef HAVE_LD_STATIC_DYNAMIC
+ if (library > 1 && !static_link)
+ {
+ arglist[j] = "-Wl,-Bdynamic";
+ j++;
+ }
+#endif
}
if (saw_math)
arglist[j++] = saw_math;
- else if (library && need_math)
+ else if (library > 0 && need_math)
{
- arglist[j++] = MATH_LIBRARY;
- added_libraries++;
+ arglist[j] = saw_profile_flag ? MATH_LIBRARY_PROFILE : MATH_LIBRARY;
+ if (arglist[j][0] != '-' || arglist[j][1] == 'l')
+ added_libraries++;
+ j++;
}
if (saw_libc)
arglist[j++] = saw_libc;
- if (shared_libgcc)
+ if (shared_libgcc && !static_link)
arglist[j++] = "-shared-libgcc";
arglist[j] = NULL;
*in_added_libraries = added_libraries;
}
-/* Called before linking. Returns 0 on success and -1 on failure. */
-int lang_specific_pre_link () /* Not used for C++. */
+/* Called before linking. Returns 0 on success and -1 on failure. */
+int lang_specific_pre_link (void) /* Not used for C++. */
{
return 0;
}
-/* Number of extra output files that lang_specific_pre_link may generate. */
-int lang_specific_extra_outfiles = 0; /* Not used for C++. */
+/* Number of extra output files that lang_specific_pre_link may generate. */
+int lang_specific_extra_outfiles = 0; /* Not used for C++. */
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