#include "flags.h"
#include "opts.h"
#include "vec.h"
+#include "filenames.h"
/* By default there is no special suffix for target executables. */
/* FIXME: when autoconf is fixed, remove the host check - dj */
# endif
#endif
-/* Conditional to test whether plugin is used or not. */
-#ifdef HAVE_LTO_PLUGIN
-#define PLUGIN_COND "!fno-use-linker-plugin"
+/* Conditional to test whether the LTO plugin is used or not.
+ FIXME: For slim LTO we will need to enable plugin unconditionally. This
+ still cause problems with PLUGIN_LD != LD and when plugin is built but
+ not useable. For GCC 4.6 we don't support slim LTO and thus we can enable
+ plugin only when LTO is enabled. We still honor explicit
+ -fuse-linker-plugin if the linker used understands -plugin. */
+
+/* The linker has some plugin support. */
+#if HAVE_LTO_PLUGIN > 0
+/* The linker used has full plugin support, use LTO plugin by default. */
+#if HAVE_LTO_PLUGIN == 2
+#define PLUGIN_COND "!fno-use-linker-plugin:%{flto|flto=*|fuse-linker-plugin"
+#define PLUGIN_COND_CLOSE "}"
#else
+/* The linker used has limited plugin support, use LTO plugin with explicit
+ -fuse-linker-plugin. */
#define PLUGIN_COND "fuse-linker-plugin"
+#define PLUGIN_COND_CLOSE ""
+#endif
+#define LINK_PLUGIN_SPEC \
+ "%{"PLUGIN_COND": \
+ -plugin %(linker_plugin_file) \
+ -plugin-opt=%(lto_wrapper) \
+ -plugin-opt=-fresolution=%u.res \
+ %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
+ }"PLUGIN_COND_CLOSE
+#else
+/* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
+#define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
+ %e-fuse-linker-plugin is not supported in this configuration}"
#endif
directories. */
/* We pass any -flto flags on to the linker, which is expected
to understand them. In practice, this means it had better be collect2. */
+/* %{e*} includes -export-dynamic; see comment in common.opt. */
#ifndef LINK_COMMAND_SPEC
#define LINK_COMMAND_SPEC "\
%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
- %(linker) \
- %{"PLUGIN_COND": \
- -plugin %(linker_plugin_file) \
- -plugin-opt=%(lto_wrapper) \
- -plugin-opt=-fresolution=%u.res \
- %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
- } \
- %{flto*:%<fcompare-debug*} \
- %{flto*} %l " LINK_PIE_SPEC \
+ %(linker) " \
+ LINK_PLUGIN_SPEC \
+ "%{flto|flto=*:%<fcompare-debug*} \
+ %{flto} %{flto=*} %l " LINK_PIE_SPEC \
"%X %{o*} %{e*} %{N} %{n} %{r}\
%{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}\
%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
%{coverage:-fprofile-arcs -ftest-coverage}";
static const char *asm_options =
-"%{--target-help:%:print-asm-header()} "
+"%{-target-help:%:print-asm-header()} "
#if HAVE_GNU_AS
/* If GNU AS is used, then convert -w (no warnings), -I, and -v
to the assembler equivalents. */
%W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
{".i", "@cpp-output", 0, 0, 0},
{"@cpp-output",
- "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 1, 0},
+ "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
{".s", "@assembler", 0, 0, 0},
{"@assembler",
"%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
"-lgcc_eh"
#ifdef USE_LIBUNWIND_EXCEPTIONS
# ifdef HAVE_LD_STATIC_DYNAMIC
- " %{!static:-Bstatic} -lunwind %{!static:-Bdynamic}"
+ " %{!static:" LD_STATIC_OPTION "} -lunwind"
+ " %{!static:" LD_DYNAMIC_OPTION "}"
# else
" -lunwind"
# endif
}
#endif
-#if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC
+#if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
+ defined LINKER_HASH_STYLE
# ifdef LINK_BUILDID_SPEC
/* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof(LINK_BUILDID_SPEC) - 1);
# ifdef LINK_EH_SPEC
/* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
obstack_grow (&obstack, LINK_EH_SPEC, sizeof(LINK_EH_SPEC) - 1);
+# endif
+# ifdef LINKER_HASH_STYLE
+ /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
+ before. */
+ {
+ static const char hash_style[] = "--hash-style=";
+ obstack_grow (&obstack, hash_style, sizeof(hash_style) - 1);
+ obstack_grow (&obstack, LINKER_HASH_STYLE, sizeof(LINKER_HASH_STYLE) - 1);
+ obstack_1grow (&obstack, ' ');
+ }
# endif
obstack_grow0 (&obstack, link_spec, strlen (link_spec));
link_spec = XOBFINISH (&obstack, const char *);
{
struct temp_file *temp;
for (temp = always_delete_queue; temp; temp = temp->next)
- if (! strcmp (name, temp->name))
+ if (! filename_cmp (name, temp->name))
goto already1;
temp = XNEW (struct temp_file);
{
struct temp_file *temp;
for (temp = failure_delete_queue; temp; temp = temp->next)
- if (! strcmp (name, temp->name))
+ if (! filename_cmp (name, temp->name))
goto already2;
temp = XNEW (struct temp_file);
}
fputc ('"', stderr);
}
+ /* If it's empty, print "". */
+ else if (!**j)
+ fprintf (stderr, " \"\"");
else
fprintf (stderr, " %s", *j);
}
}
else
for (j = commands[i].argv; *j; j++)
- fprintf (stderr, " %s", *j);
+ /* If it's empty, print "". */
+ if (!**j)
+ fprintf (stderr, " \"\"");
+ else
+ fprintf (stderr, " %s", *j);
/* Print a pipe symbol after all but the last command. */
if (i + 1 != n_commands)
}
/* Handle an option DECODED that is unknown to the option-processing
- machinery, but may be known to specs. */
+ machinery. */
static bool
driver_unknown_option_callback (const struct cl_decoded_option *decoded)
{
- save_switch (decoded->canonical_option[0],
- decoded->canonical_option_num_elements - 1,
- &decoded->canonical_option[1], false);
-
- return false;
+ const char *opt = decoded->arg;
+ if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-'
+ && !(decoded->errors & CL_ERR_NEGATIVE))
+ {
+ /* Leave unknown -Wno-* options for the compiler proper, to be
+ diagnosed only if there are warnings. */
+ save_switch (decoded->canonical_option[0],
+ decoded->canonical_option_num_elements - 1,
+ &decoded->canonical_option[1], false);
+ return false;
+ }
+ else
+ return true;
}
/* Handle an option DECODED that is not marked as CL_DRIVER.
options. */
const struct cl_option *option = &cl_options[decoded->opt_index];
- if (option->flags & CL_REJECT_DRIVER)
+ if (option->cl_reject_driver)
error ("unrecognized command line option %qs",
decoded->orig_option_with_args_text);
else
- driver_unknown_option_callback (decoded);
+ save_switch (decoded->canonical_option[0],
+ decoded->canonical_option_num_elements - 1,
+ &decoded->canonical_option[1], false);
}
/* Note that an option (index OPT_INDEX, argument ARG, value VALUE)
save_switch (concat ("-L", arg, NULL), 0, NULL, validated);
return true;
+ case OPT_F:
+ /* Likewise -F. */
+ save_switch (concat ("-F", arg, NULL), 0, NULL, validated);
+ return true;
+
case OPT_save_temps:
save_temps_flag = SAVE_TEMPS_CWD;
validated = true;
{
temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
if (IS_DIR_SEPARATOR (*temp)
- && strncmp (temp + 1, "lib", 3) == 0
+ && filename_ncmp (temp + 1, "lib", 3) == 0
&& IS_DIR_SEPARATOR (temp[4])
- && strncmp (temp + 5, "gcc", 3) == 0)
+ && filename_ncmp (temp + 5, "gcc", 3) == 0)
len -= sizeof ("/lib/gcc/") - 1;
}
int i;
int value;
+ /* If it's an empty string argument to a switch, keep it as is. */
+ if (inswitch && !*p)
+ arg_going = 1;
+
while ((c = *p++))
/* If substituting a switch, treat all chars like letters.
Otherwise, NL, SPC, TAB and % are special. */
tmp[basename_length + suffix_length] = '\0';
temp_filename = tmp;
- if (strcmp (temp_filename, gcc_input_filename) != 0)
+ if (filename_cmp (temp_filename, gcc_input_filename) != 0)
{
#ifndef HOST_LACKS_INODE_NUMBERS
struct stat st_temp;
/* Just compare canonical pathnames. */
char* input_realname = lrealpath (gcc_input_filename);
char* temp_realname = lrealpath (temp_filename);
- bool files_differ = strcmp (input_realname, temp_realname);
+ bool files_differ = filename_cmp (input_realname, temp_realname);
free (input_realname);
free (temp_realname);
if (files_differ)
t->filename_length = temp_filename_length;
}
- if (saved_suffix)
- free (saved_suffix);
+ free (saved_suffix);
obstack_grow (&obstack, t->filename, t->filename_length);
delete_this_arg = 1;
case '*':
if (soft_matched_part)
{
- do_spec_1 (soft_matched_part, 1, NULL);
+ if (soft_matched_part[0])
+ do_spec_1 (soft_matched_part, 1, NULL);
do_spec_1 (" ", 0, NULL);
}
else
if (linker
&& IS_DIR_SEPARATOR (path[0])
&& ((cp - path == 6
- && strncmp (path + 1, "lib", 3) == 0)
+ && filename_ncmp (path + 1, "lib", 3) == 0)
|| (cp - path == 10
- && strncmp (path + 1, "usr", 3) == 0
+ && filename_ncmp (path + 1, "usr", 3) == 0
&& IS_DIR_SEPARATOR (path[4])
- && strncmp (path + 5, "lib", 3) == 0)))
+ && filename_ncmp (path + 5, "lib", 3) == 0)))
return 0;
return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
if (n_infiles == added_libraries)
fatal_error ("no input files");
+ if (seen_error ())
+ goto out;
+
/* Make a place to record the compiler output file names
that correspond to the input files. */
{
if (compare_debug)
{
- if (debug_check_temp_file[0])
- free (debug_check_temp_file[0]);
+ free (debug_check_temp_file[0]);
debug_check_temp_file[0] = NULL;
- if (debug_check_temp_file[1])
- free (debug_check_temp_file[1]);
+ free (debug_check_temp_file[1]);
debug_check_temp_file[1] = NULL;
}
}
gcc_assert (debug_check_temp_file[1]
- && strcmp (debug_check_temp_file[0],
- debug_check_temp_file[1]));
+ && filename_cmp (debug_check_temp_file[0],
+ debug_check_temp_file[1]));
if (verbose_flag)
inform (0, "comparing final insns dumps");
if (compare_debug)
{
- if (debug_check_temp_file[0])
- free (debug_check_temp_file[0]);
+ free (debug_check_temp_file[0]);
debug_check_temp_file[0] = NULL;
- if (debug_check_temp_file[1])
- free (debug_check_temp_file[1]);
+ free (debug_check_temp_file[1]);
debug_check_temp_file[1] = NULL;
}
}
if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2)
{
int tmp = execution_count;
-#ifdef HAVE_LTO_PLUGIN
+#if HAVE_LTO_PLUGIN > 0
+#if HAVE_LTO_PLUGIN == 2
const char *fno_use_linker_plugin = "fno-use-linker-plugin";
#else
const char *fuse_linker_plugin = "fuse-linker-plugin";
+#endif
#endif
/* We'll use ld if we can't find collect2. */
linker_name_spec = "ld";
}
-#ifdef HAVE_LTO_PLUGIN
+#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))
#else
if (!linker_plugin_file_spec)
fatal_error ("-fuse-linker-plugin, but " LTOPLUGINSONAME " not found");
}
+#endif
lto_gcc_spec = argv[0];
/* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
printf ("%s\n", bug_report_url);
}
+ out:
return (signal_count != 0 ? 2
: seen_error () ? (pass_exit_codes ? greatest_status : 1)
: 0);
/* If this is a duplicate, skip it. */
skip = (last_path != 0
&& (unsigned int) (p - this_path) == last_path_len
- && ! strncmp (last_path, this_path, last_path_len));
+ && ! filename_ncmp (last_path, this_path, last_path_len));
last_path = this_path;
last_path_len = p - this_path;
for (i = 0; i < n_infiles; i++)
{
- if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
+ if (outfiles[i] && !filename_cmp (outfiles[i], argv[0]))
outfiles[i] = xstrdup (argv[1]);
}
return NULL;
for (i = 0; i < n_infiles; i++)
{
- if (outfiles[i] && !strcmp (outfiles[i], argv[0]))
+ if (outfiles[i] && !filename_cmp (outfiles[i], argv[0]))
outfiles[i] = NULL;
}
return NULL;
projects / gcc.git / blobdiff