/* Specific flags and argument handling of the C++ front end.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2007 Free Software Foundation, Inc.
+ 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GCC.
#include "coretypes.h"
#include "tm.h"
#include "gcc.h"
+#include "opts.h"
/* This bit is set if we saw a `-xfoo' language specification. */
#define LANGSPEC (1<<1)
#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"
+#define MATH_LIBRARY "m"
#endif
#ifndef MATH_LIBRARY_PROFILE
#define MATH_LIBRARY_PROFILE MATH_LIBRARY
#endif
#ifndef LIBSTDCXX
-#define LIBSTDCXX "-lstdc++"
+#define LIBSTDCXX "stdc++"
#endif
#ifndef LIBSTDCXX_PROFILE
#define LIBSTDCXX_PROFILE LIBSTDCXX
#endif
#ifndef LIBSTDCXX_STATIC
-#define LIBSTDCXX_STATIC LIBSTDCXX
+#define LIBSTDCXX_STATIC NULL
#endif
void
-lang_specific_driver (int *in_argc, const char *const **in_argv,
+lang_specific_driver (struct cl_decoded_option **in_decoded_options,
+ unsigned int *in_decoded_options_count,
int *in_added_libraries)
{
- int i, j;
+ unsigned int i, j;
/* 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
-xc++/-xnone. */
int added = 0;
- /* Used to track options that take arguments, so we don't go wrapping
- those with -xc++/-xnone. */
- const char *quote = NULL;
-
/* The new argument list will be contained in this. */
- const char **arglist;
+ struct cl_decoded_option *new_decoded_options;
/* Nonzero if we saw a `-xfoo' language specification on the
command line. Used to avoid adding our own -xc++ if the user
int saw_speclang = 0;
/* "-lm" or "-lmath" if it appears on the command line. */
- const char *saw_math = 0;
+ const struct cl_decoded_option *saw_math = NULL;
/* "-lc" if it appears on the command line. */
- const char *saw_libc = 0;
+ const struct cl_decoded_option *saw_libc = NULL;
/* An array used to flag each argument that needs a bit set for
LANGSPEC, MATHLIB, or WITHLIBC. */
/* 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;
/* The total number of arguments with the new stuff. */
- int argc;
+ unsigned int argc;
/* The argument list. */
- const char *const *argv;
+ struct cl_decoded_option *decoded_options;
/* The number of libraries added in. */
int added_libraries;
/* The total number of arguments with the new stuff. */
- int num_args = 1;
+ unsigned int num_args = 1;
- argc = *in_argc;
- argv = *in_argv;
+ argc = *in_decoded_options_count;
+ decoded_options = *in_decoded_options;
added_libraries = *in_added_libraries;
args = XCNEWVEC (int, argc);
for (i = 1; i < argc; i++)
{
- /* If the previous option took an argument, we swallow it here. */
- if (quote)
- {
- quote = NULL;
- continue;
- }
-
- /* We don't do this anymore, since we don't get them with minus
- signs on them. */
- if (argv[i][0] == '\0' || argv[i][1] == '\0')
- continue;
+ const char *arg = decoded_options[i].arg;
+ if (decoded_options[i].errors & CL_ERR_MISSING_ARG)
+ continue; /* Avoid examining arguments of options missing them. */
- if (argv[i][0] == '-')
+ switch (decoded_options[i].opt_index)
{
- if (strcmp (argv[i], "-nostdlib") == 0
- || strcmp (argv[i], "-nodefaultlibs") == 0)
- {
- library = -1;
- }
- else if (strcmp (argv[i], MATH_LIBRARY) == 0)
+ case OPT_nostdlib:
+ case OPT_nodefaultlibs:
+ library = -1;
+ break;
+
+ case OPT_l:
+ if (strcmp (arg, MATH_LIBRARY) == 0)
{
args[i] |= MATHLIB;
need_math = 0;
}
- else if (strcmp (argv[i], "-lc") == 0)
+ else if (strcmp (arg, "c") == 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;
+ else
+ /* Unrecognized libraries (e.g. -lfoo) may require libstdc++. */
+ library = (library == 0) ? 1 : library;
+ break;
+
+ case OPT_pg:
+ case OPT_p:
+ saw_profile_flag++;
+ break;
+
+ case OPT_x:
+ 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)
- library = 1;
- saw_speclang = 1;
- }
+ saw_speclang = 1;
+ break;
+
+ case OPT_Xlinker:
+ case OPT_Wl_:
/* 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], "-Tdata") == 0))
- quote = argv[i];
- 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 = -1;
- }
- else if (strcmp (argv[i], "-static-libgcc") == 0
- || strcmp (argv[i], "-static") == 0)
- shared_libgcc = 0;
- else if (DEFAULT_WORD_SWITCH_TAKES_ARG (&argv[i][1]))
- i++;
- else
- /* Pass other options through. */
- continue;
- }
- else
- {
- int len;
-
- if (saw_speclang)
- {
- saw_speclang = 0;
+ if (library == 0)
+ library = 1;
+ break;
+
+ case OPT_c:
+ case OPT_S:
+ case OPT_E:
+ case OPT_M:
+ case OPT_MM:
+ case OPT_fsyntax_only:
+ /* Don't specify libraries if we won't link, since that would
+ cause a warning. */
+ library = -1;
+ break;
+
+ case OPT_static:
+ static_link = 1;
+ break;
+
+ case OPT_static_libgcc:
+ shared_libgcc = 0;
+ break;
+
+ case OPT_static_libstdc__:
+ library = library >= 0 ? 2 : library;
+ args[i] |= SKIPOPT;
+ break;
+
+ case OPT_SPECIAL_input_file:
+ {
+ int len;
+
+ /* We don't do this anymore, since we don't get them with minus
+ signs on them. */
+ if (arg[0] == '\0' || arg[1] == '\0')
continue;
- }
- /* 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] == '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 (saw_speclang)
+ {
+ saw_speclang = 0;
+ continue;
+ }
+
+ /* If the filename ends in .[chi], put options around it.
+ But not if a specified -x option is currently active. */
+ len = strlen (arg);
+ if (len > 2
+ && (arg[len - 1] == 'c'
+ || arg[len - 1] == 'i'
+ || arg[len - 1] == 'h')
+ && arg[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 (arg + (len - 2), ".H") != 0)
+ && (len <= 2 || strcmp (arg + (len - 2), ".h") != 0)
+ && (len <= 4 || strcmp (arg + (len - 4), ".hpp") != 0)
+ && (len <= 3 || strcmp (arg + (len - 3), ".hp") != 0)
+ && (len <= 4 || strcmp (arg + (len - 4), ".hxx") != 0)
+ && (len <= 4 || strcmp (arg + (len - 4), ".h++") != 0)
+ && (len <= 4 || strcmp (arg + (len - 4), ".HPP") != 0)
+ && (len <= 4 || strcmp (arg + (len - 4), ".tcc") != 0)
+ && (len <= 3 || strcmp (arg + (len - 3), ".hh") != 0))
+ library = 1;
+ }
+ }
+ break;
}
}
- if (quote)
- fatal ("argument to '%s' missing\n", quote);
-
/* There's no point adding -shared-libgcc if we don't have a shared
libgcc. */
#ifndef ENABLE_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 = XNEWVEC (const char *, num_args);
+ /* Add one for shared_libgcc or extra static library. */
+ num_args = argc + added + need_math + (library > 0) * 4 + 1;
+ new_decoded_options = XNEWVEC (struct cl_decoded_option, num_args);
i = 0;
j = 0;
/* Copy the 0th argument, i.e., the name of the program itself. */
- arglist[i++] = argv[j++];
+ new_decoded_options[j++] = decoded_options[i++];
/* NOTE: We start at 1 now, not 0. */
while (i < argc)
{
- arglist[j] = argv[i];
+ new_decoded_options[j] = decoded_options[i];
/* Make sure -lstdc++ is before the math library, since libstdc++
itself uses those math routines. */
if (!saw_math && (args[i] & MATHLIB) && library > 0)
{
--j;
- saw_math = argv[i];
+ saw_math = &decoded_options[i];
}
if (!saw_libc && (args[i] & WITHLIBC) && library > 0)
{
--j;
- saw_libc = argv[i];
+ saw_libc = &decoded_options[i];
}
/* 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]);
- switch (argv[i][len - 1])
+ const char *arg = decoded_options[i].arg;
+ int len = strlen (arg);
+ switch (arg[len - 1])
{
case 'c':
- arglist[j++] = "-xc++";
+ generate_option (OPT_x, "c++", 1, CL_DRIVER,
+ &new_decoded_options[j++]);
break;
case 'i':
- arglist[j++] = "-xc++-cpp-output";
+ generate_option (OPT_x, "c++-cpp-output", 1, CL_DRIVER,
+ &new_decoded_options[j++]);
break;
case 'h':
- arglist[j++] = "-xc++-header";
+ generate_option (OPT_x, "c++-header", 1, CL_DRIVER,
+ &new_decoded_options[j++]);
break;
default:
gcc_unreachable ();
}
- arglist[j++] = argv[i];
- arglist[j] = "-xnone";
+ new_decoded_options[j++] = decoded_options[i];
+ generate_option (OPT_x, "none", 1, CL_DRIVER,
+ &new_decoded_options[j]);
}
+ if ((args[i] & SKIPOPT) != 0)
+ --j;
+
i++;
j++;
}
/* Add `-lstdc++' if we haven't already done so. */
if (library > 0)
{
- arglist[j] = shared_libgcc == 0 ? LIBSTDCXX_STATIC
- : saw_profile_flag ? LIBSTDCXX_PROFILE : LIBSTDCXX;
- if (arglist[j][0] != '-' || arglist[j][1] == 'l')
- added_libraries++;
+#ifdef HAVE_LD_STATIC_DYNAMIC
+ if (library > 1 && !static_link)
+ {
+ generate_option (OPT_Wl_, "-Bstatic", 1, CL_DRIVER,
+ &new_decoded_options[j]);
+ j++;
+ }
+#endif
+ generate_option (OPT_l,
+ saw_profile_flag ? LIBSTDCXX_PROFILE : LIBSTDCXX, 1,
+ CL_DRIVER, &new_decoded_options[j]);
+ added_libraries++;
j++;
+ /* Add target-dependent static library, if necessary. */
+ if ((static_link || library > 1) && LIBSTDCXX_STATIC != NULL)
+ {
+ generate_option (OPT_l, LIBSTDCXX_STATIC, 1,
+ CL_DRIVER, &new_decoded_options[j]);
+ added_libraries++;
+ j++;
+ }
+#ifdef HAVE_LD_STATIC_DYNAMIC
+ if (library > 1 && !static_link)
+ {
+ generate_option (OPT_Wl_, "-Bdynamic", 1, CL_DRIVER,
+ &new_decoded_options[j]);
+ j++;
+ }
+#endif
}
if (saw_math)
- arglist[j++] = saw_math;
+ new_decoded_options[j++] = *saw_math;
else if (library > 0 && need_math)
{
- arglist[j] = saw_profile_flag ? MATH_LIBRARY_PROFILE : MATH_LIBRARY;
- if (arglist[j][0] != '-' || arglist[j][1] == 'l')
- added_libraries++;
+ generate_option (OPT_l,
+ saw_profile_flag ? MATH_LIBRARY_PROFILE : MATH_LIBRARY,
+ 1, CL_DRIVER, &new_decoded_options[j]);
+ added_libraries++;
j++;
}
if (saw_libc)
- arglist[j++] = saw_libc;
- if (shared_libgcc)
- arglist[j++] = "-shared-libgcc";
-
- arglist[j] = NULL;
+ new_decoded_options[j++] = *saw_libc;
+ if (shared_libgcc && !static_link)
+ generate_option (OPT_shared_libgcc, NULL, 1, CL_DRIVER,
+ &new_decoded_options[j++]);
- *in_argc = j;
- *in_argv = arglist;
+ *in_decoded_options_count = j;
+ *in_decoded_options = new_decoded_options;
*in_added_libraries = added_libraries;
}