-/* Specific flags and argument handling of the C++ front-end.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
- 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 GCC.
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.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GCC; 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"
#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 "-lm"
+#define MATH_LIBRARY_PROFILE MATH_LIBRARY
#endif
#ifndef LIBSTDCXX
#define LIBSTDCXX "-lstdc++"
#endif
#ifndef LIBSTDCXX_PROFILE
-#define LIBSTDCXX_PROFILE "-lstdc++"
+#define LIBSTDCXX_PROFILE LIBSTDCXX
+#endif
+#ifndef LIBSTDCXX_STATIC
+#define LIBSTDCXX_STATIC NULL
#endif
void
/* If nonzero, the user gave us the `-p' or `-pg' flag. */
int saw_profile_flag = 0;
- /* If nonzero, the user gave us the `-v' flag. */
- int saw_verbose_flag = 0;
-
- /* This is a tristate:
+ /* 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. */
+ 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
/* 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 = xcalloc (argc, sizeof (int));
+ args = XCNEWVEC (int, argc);
for (i = 1; i < argc; i++)
{
{
library = -1;
}
- else if (strcmp (argv[i], "-lm") == 0
- || strcmp (argv[i], "-lmath") == 0
- || strcmp (argv[i], MATH_LIBRARY) == 0
- )
+ else if (strcmp (argv[i], MATH_LIBRARY) == 0)
{
args[i] |= MATHLIB;
need_math = 0;
args[i] |= WITHLIBC;
else if (strcmp (argv[i], "-pg") == 0 || strcmp (argv[i], "-p") == 0)
saw_profile_flag++;
- else if (strcmp (argv[i], "-v") == 0)
- saw_verbose_flag = 1;
else if (strncmp (argv[i], "-x", 2) == 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 (strcmp (argv[i], "-ObjC++") == 0)
+ {
if (library == 0)
- {
- const char * arg;
- if (argv[i][2] != '\0')
- arg = argv[i]+2;
- else if (argv[i+1] != NULL)
- arg = argv[i+1];
- else /* Error condition, message will be printed later. */
- arg = "";
- if (strcmp (arg, "c++") == 0
- || strcmp (arg, "c++-cpp-output") == 0)
- library = 1;
- }
+ 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'
&& strchr ("bBVDUoeTuIYmLiA", argv[i][1]) != NULL)
- || strcmp (argv[i], "-Xlinker") == 0
|| strcmp (argv[i], "-Tdata") == 0))
quote = argv[i];
else if ((argv[i][2] == '\0'
cause a warning. */
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
}
else
{
- int len;
+ int len;
if (saw_speclang)
{
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] == '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 <= 0)
- {
- 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 + (library > 0) + 1;
- arglist = 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++];
arglist[j++] = "-xc++-header";
break;
default:
- abort ();
+ 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 > 0)
{
- arglist[j++] = saw_profile_flag ? LIBSTDCXX_PROFILE : LIBSTDCXX;
- added_libraries++;
-#ifdef USE_LIBUNWIND_EXCEPTIONS
-# ifndef LIBUNWIND
-# define LIBUNWIND "-lunwind"
-# endif
- arglist[j++] = LIBUNWIND;
- 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 > 0 && need_math)
{
- arglist[j++] = saw_profile_flag ? MATH_LIBRARY_PROFILE : 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;
}
/* Called before linking. Returns 0 on success and -1 on failure. */
-int lang_specific_pre_link () /* Not used for C++. */
+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++. */
-
-/* Table of language-specific spec functions. */
-const struct spec_function lang_specific_spec_functions[] =
-{
- { 0, 0 }
-};
OSDN Git Service
