/* Compiler driver program that can handle many languages.
Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
- 2010, 2011
+ 2010, 2011, 2012
Free Software Foundation, Inc.
This file is part of GCC.
%{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\
%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
%{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
+ %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
%(mflib) " STACK_SPLIT_SPEC "\
%{fprofile-arcs|fprofile-generate*|coverage:-lgcov}\
%{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
static const char *sysroot_spec = SYSROOT_SPEC;
static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
+static const char *self_spec = "";
/* Standard options to cpp, cc1, and as, to reduce duplication in specs.
There should be no need to override these in target dependent files,
#define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: -pthread}"
#endif
+/* Likewise for -fgnu-tm. */
+#ifndef GTM_SELF_SPECS
+#define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
+#endif
+
static const char *const driver_self_specs[] = {
"%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
- DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS
+ DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS
};
#ifndef OPTION_DEFAULT_SPECS
INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
+ INIT_STATIC_SPEC ("self_spec", &self_spec),
};
#ifdef EXTRA_SPECS /* additional specs needed */
if (target_system_root)
{
+ char *sysroot_no_trailing_dir_separator = xstrdup (target_system_root);
+ size_t sysroot_len = strlen (target_system_root);
+
+ if (sysroot_len > 0
+ && target_system_root[sysroot_len - 1] == DIR_SEPARATOR)
+ sysroot_no_trailing_dir_separator[sysroot_len - 1] = '\0';
+
if (target_sysroot_suffix)
prefix = concat (target_sysroot_suffix, prefix, NULL);
- prefix = concat (target_system_root, prefix, NULL);
+ prefix = concat (sysroot_no_trailing_dir_separator, prefix, NULL);
+ free (sysroot_no_trailing_dir_separator);
/* We have to override this because GCC's notion of sysroot
moves along with GCC. */
fputs (_(" -pass-exit-codes Exit with highest error code from a phase\n"), stdout);
fputs (_(" --help Display this information\n"), stdout);
fputs (_(" --target-help Display target specific command line options\n"), stdout);
- fputs (_(" --help={target|optimizers|warnings|params|[^]{joined|separate|undocumented}}[,...]\n"), stdout);
+ fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]\n"), stdout);
fputs (_(" Display specific types of command line options\n"), stdout);
if (! verbose_flag)
fputs (_(" (Use '-v --help' to display command line options of sub-processes)\n"), stdout);
fputs (_(" -S Compile only; do not assemble or link\n"), stdout);
fputs (_(" -c Compile and assemble, but do not link\n"), stdout);
fputs (_(" -o <file> Place the output into <file>\n"), stdout);
+ fputs (_(" -pie Create a position independent executable\n"), stdout);
+ fputs (_(" -shared Create a shared library\n"), stdout);
fputs (_("\
-x <language> Specify the language of the following input files\n\
Permissible languages include: c c++ assembler none\n\
&decoded->canonical_option[1], false);
}
-/* Note that an option (index OPT_INDEX, argument ARG, value VALUE)
- has been successfully handled with a handler for mask MASK. */
-
-static void
-driver_post_handling_callback (const struct cl_decoded_option *decoded ATTRIBUTE_UNUSED,
- unsigned int mask ATTRIBUTE_UNUSED)
-{
- /* Nothing to do here. */
-}
-
static const char *spec_lang = 0;
static int last_language_n_infiles;
{
handlers->unknown_option_callback = driver_unknown_option_callback;
handlers->wrong_lang_callback = driver_wrong_lang_callback;
- handlers->post_handling_callback = driver_post_handling_callback;
handlers->num_handlers = 3;
handlers->handlers[0].handler = driver_handle_option;
handlers->handlers[0].mask = CL_DRIVER;
&& check_live_switch (i, plen))
return true;
+ /* Check if a switch with separated form matching the atom.
+ We check -D and -U switches. */
+ else if (switches[i].args != 0)
+ {
+ if ((*switches[i].part1 == 'D' || *switches[i].part1 == 'U')
+ && *switches[i].part1 == atom[0])
+ {
+ if (!strncmp (switches[i].args[0], &atom[1], len - 1)
+ && (starred || (switches[i].part1[1] == '\0'
+ && switches[i].args[0][len - 1] == '\0'))
+ && check_live_switch (i, (starred ? 1 : -1)))
+ return true;
+ }
+ }
+
return false;
}
for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
do_self_spec (driver_self_specs[i]);
- if (compare_debug)
- {
- enum save_temps save;
-
- if (!compare_debug_second)
- {
- n_switches_debug_check[1] = n_switches;
- n_switches_alloc_debug_check[1] = n_switches_alloc;
- switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
- n_switches_alloc);
-
- do_self_spec ("%:compare-debug-self-opt()");
- n_switches_debug_check[0] = n_switches;
- n_switches_alloc_debug_check[0] = n_switches_alloc;
- switches_debug_check[0] = switches;
-
- n_switches = n_switches_debug_check[1];
- n_switches_alloc = n_switches_alloc_debug_check[1];
- switches = switches_debug_check[1];
- }
-
- /* Avoid crash when computing %j in this early. */
- save = save_temps_flag;
- save_temps_flag = SAVE_TEMPS_NONE;
-
- compare_debug = -compare_debug;
- do_self_spec ("%:compare-debug-self-opt()");
-
- save_temps_flag = save;
-
- if (!compare_debug_second)
- {
- n_switches_debug_check[1] = n_switches;
- n_switches_alloc_debug_check[1] = n_switches_alloc;
- switches_debug_check[1] = switches;
- compare_debug = -compare_debug;
- n_switches = n_switches_debug_check[0];
- n_switches_alloc = n_switches_debug_check[0];
- switches = switches_debug_check[0];
- }
- }
-
/* If not cross-compiling, look for executables in the standard
places. */
if (*cross_compile == '0')
read_specs (filename ? filename : uptr->filename, FALSE);
}
+ /* Process any user self specs. */
+ {
+ struct spec_list *sl;
+ for (sl = specs; sl; sl = sl->next)
+ if (sl->name_len == sizeof "self_spec" - 1
+ && !strcmp (sl->name, "self_spec"))
+ do_self_spec (*sl->ptr_spec);
+ }
+
+ if (compare_debug)
+ {
+ enum save_temps save;
+
+ if (!compare_debug_second)
+ {
+ n_switches_debug_check[1] = n_switches;
+ n_switches_alloc_debug_check[1] = n_switches_alloc;
+ switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
+ n_switches_alloc);
+
+ do_self_spec ("%:compare-debug-self-opt()");
+ n_switches_debug_check[0] = n_switches;
+ n_switches_alloc_debug_check[0] = n_switches_alloc;
+ switches_debug_check[0] = switches;
+
+ n_switches = n_switches_debug_check[1];
+ n_switches_alloc = n_switches_alloc_debug_check[1];
+ switches = switches_debug_check[1];
+ }
+
+ /* Avoid crash when computing %j in this early. */
+ save = save_temps_flag;
+ save_temps_flag = SAVE_TEMPS_NONE;
+
+ compare_debug = -compare_debug;
+ do_self_spec ("%:compare-debug-self-opt()");
+
+ save_temps_flag = save;
+
+ if (!compare_debug_second)
+ {
+ n_switches_debug_check[1] = n_switches;
+ n_switches_alloc_debug_check[1] = n_switches_alloc;
+ switches_debug_check[1] = switches;
+ compare_debug = -compare_debug;
+ n_switches = n_switches_debug_check[0];
+ n_switches_alloc = n_switches_debug_check[0];
+ switches = switches_debug_check[0];
+ }
+ }
+
+
/* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
if (gcc_exec_prefix)
gcc_exec_prefix = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
/* Set up to remember the pathname of the lto wrapper. */
- lto_wrapper_file = find_a_file (&exec_prefixes, "lto-wrapper", X_OK, false);
+ if (have_c)
+ lto_wrapper_file = NULL;
+ else
+ lto_wrapper_file = find_a_file (&exec_prefixes, "lto-wrapper",
+ X_OK, false);
if (lto_wrapper_file)
{
lto_wrapper_spec = lto_wrapper_file;
{
printf (_("%s %s%s\n"), progname, pkgversion_string,
version_string);
- printf ("Copyright %s 2011 Free Software Foundation, Inc.\n",
+ printf ("Copyright %s 2012 Free Software Foundation, Inc.\n",
_("(C)"));
fputs (_("This is free software; see the source for copying conditions. There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2)
{
int tmp = execution_count;
+
+ if (! have_c)
+ {
#if HAVE_LTO_PLUGIN > 0
#if HAVE_LTO_PLUGIN == 2
- const char *fno_use_linker_plugin = "fno-use-linker-plugin";
+ const char *fno_use_linker_plugin = "fno-use-linker-plugin";
#else
- const char *fuse_linker_plugin = "fuse-linker-plugin";
+ const char *fuse_linker_plugin = "fuse-linker-plugin";
#endif
#endif
- /* We'll use ld if we can't find collect2. */
- if (! strcmp (linker_name_spec, "collect2"))
- {
- char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
- if (s == NULL)
- linker_name_spec = "ld";
- }
+ /* We'll use ld if we can't find collect2. */
+ if (! strcmp (linker_name_spec, "collect2"))
+ {
+ char *s = find_a_file (&exec_prefixes, "collect2", X_OK, false);
+ if (s == NULL)
+ linker_name_spec = "ld";
+ }
#if HAVE_LTO_PLUGIN > 0
#if HAVE_LTO_PLUGIN == 2
- if (!switch_matches (fno_use_linker_plugin,
- fno_use_linker_plugin + strlen (fno_use_linker_plugin), 0))
+ if (!switch_matches (fno_use_linker_plugin,
+ fno_use_linker_plugin
+ + strlen (fno_use_linker_plugin), 0))
#else
- if (switch_matches (fuse_linker_plugin,
- fuse_linker_plugin + strlen (fuse_linker_plugin), 0))
+ if (switch_matches (fuse_linker_plugin,
+ fuse_linker_plugin
+ + strlen (fuse_linker_plugin), 0))
#endif
- {
- linker_plugin_file_spec = find_a_file (&exec_prefixes,
- LTOPLUGINSONAME, R_OK,
- false);
- if (!linker_plugin_file_spec)
- fatal_error ("-fuse-linker-plugin, but " LTOPLUGINSONAME " not found");
- }
+ {
+ linker_plugin_file_spec = find_a_file (&exec_prefixes,
+ LTOPLUGINSONAME, R_OK,
+ false);
+ if (!linker_plugin_file_spec)
+ fatal_error ("-fuse-linker-plugin, but %s not found",
+ LTOPLUGINSONAME);
+ }
#endif
- lto_gcc_spec = argv[0];
+ lto_gcc_spec = argv[0];
+ }
/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
for collect. */
return NULL;
}
-/* Compute a timestamp to initialize flag_random_seed. */
+/* Get a random number for -frandom-seed */
-static unsigned
-get_local_tick (void)
+static unsigned HOST_WIDE_INT
+get_random_number (void)
{
- unsigned ret = 0;
+ unsigned HOST_WIDE_INT ret = 0;
+ int fd;
+
+ fd = open ("/dev/urandom", O_RDONLY);
+ if (fd >= 0)
+ {
+ read (fd, &ret, sizeof (HOST_WIDE_INT));
+ close (fd);
+ if (ret)
+ return ret;
+ }
/* Get some more or less random data. */
#ifdef HAVE_GETTIMEOFDAY
}
#endif
- return ret;
+ return ret ^ getpid();
}
/* %:compare-debug-dump-opt spec function. Save the last argument,
if (!which)
{
- unsigned HOST_WIDE_INT value = get_local_tick () ^ getpid ();
+ unsigned HOST_WIDE_INT value = get_random_number ();
sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
}
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