# define SIGCHLD SIGCLD
#endif
+/* TARGET_64BIT may be defined to use driver specific functionality. */
+#undef TARGET_64BIT
+#define TARGET_64BIT TARGET_64BIT_DEFAULT
+
#ifndef LIBRARY_PATH_ENV
#define LIBRARY_PATH_ENV "LIBRARY_PATH"
#endif
int number;
};
-int vflag; /* true if -v */
+bool vflag; /* true if -v or --version */
static int rflag; /* true if -r */
static int strip_flag; /* true if -s */
static const char *demangle_flag;
/* Current LTO mode. */
static enum lto_mode_d lto_mode = LTO_MODE_NONE;
-int debug; /* true if -debug */
+bool debug; /* true if -debug */
+bool helpflag; /* true if --help */
static int shared_obj; /* true if -shared */
va_end (ap);
}
+/* Notify user of a non-error, without translating the format string. */
+void
+notice_translated (const char *cmsgid, ...)
+{
+ va_list ap;
+
+ va_start (ap, cmsgid);
+ vfprintf (stderr, cmsgid, ap);
+ va_end (ap);
+}
+
/* Die when sys call fails. */
void
if (lto_objects.first)
{
- const char *opts;
char **lto_c_argv;
const char **lto_c_ptr;
- const char *cp;
const char **p, **q, **r;
const char **lto_o_ptr;
struct lto_object *list;
if (!lto_wrapper)
fatal ("COLLECT_LTO_WRAPPER must be set.");
+ num_lto_c_args++;
+
/* There is at least one object file containing LTO info,
so we need to run the LTO back end and relink. */
- /* Get compiler options passed down from the parent `gcc' command.
- These must be passed to the LTO back end. */
- opts = getenv ("COLLECT_GCC_OPTIONS");
-
- /* Increment the argument count by the number of inherited options.
- Some arguments may be filtered out later. Again, an upper bound
- suffices. */
-
- cp = opts;
-
- while (cp && *cp)
- {
- extract_string (&cp);
- num_lto_c_args++;
- }
- obstack_free (&temporary_obstack, temporary_firstobj);
-
- if (debug)
- num_lto_c_args++;
-
- /* Increment the argument count by the number of initial
- arguments added below. */
- num_lto_c_args += 9;
-
lto_c_argv = (char **) xcalloc (sizeof (char *), num_lto_c_args);
lto_c_ptr = CONST_CAST2 (const char **, char **, lto_c_argv);
*lto_c_ptr++ = lto_wrapper;
- *lto_c_ptr++ = c_file_name;
-
- cp = opts;
-
- while (cp && *cp)
- {
- const char *s = extract_string (&cp);
-
- /* Pass the option or argument to the wrapper. */
- *lto_c_ptr++ = xstrdup (s);
- }
- obstack_free (&temporary_obstack, temporary_firstobj);
-
- if (debug)
- *lto_c_ptr++ = xstrdup ("-debug");
/* Add LTO objects to the wrapper command line. */
for (list = lto_objects.first; list; list = list->next)
*lto_c_ptr = NULL;
- /* Save intermediate WPA files in lto1 if debug. */
- if (debug)
- putenv (xstrdup ("WPA_SAVE_LTRANS=1"));
-
/* Run the LTO back end. */
pex = collect_execute (prog, lto_c_argv, NULL, NULL, PEX_SEARCH);
{
for (i = 1; argv[i] != NULL; i ++)
{
if (! strcmp (argv[i], "-debug"))
- debug = 1;
+ debug = true;
else if (! strcmp (argv[i], "-flto") && ! use_plugin)
{
use_verbose = true;
if (use_verbose && *q == '-' && q[1] == 'v' && q[2] == 0)
{
/* Turn on trace in collect2 if needed. */
- vflag = 1;
+ vflag = true;
}
}
obstack_free (&temporary_obstack, temporary_firstobj);
case 'v':
if (arg[2] == '\0')
- vflag = 1;
+ vflag = true;
break;
case '-':
}
else if (strncmp (arg, "--sysroot=", 10) == 0)
target_system_root = arg + 10;
+ else if (strncmp (arg, "--version", 9) == 0)
+ vflag = true;
+ else if (strncmp (arg, "--help", 9) == 0)
+ helpflag = true;
break;
}
}
control whether we need a first pass link later on or not, and what
will remain to be scanned there. */
- scanfilter this_filter
- = shared_obj ? ld1_filter : (ld1_filter & ~SCAN_DWEH);
+ scanfilter this_filter = ld1_filter;
+#if HAVE_AS_REF
+ if (!shared_obj)
+ this_filter &= ~SCAN_DWEH;
+#endif
while (export_object_lst < object)
scan_prog_file (*export_object_lst++, PASS_OBJ, this_filter);
fprintf (stderr, "\n");
}
+ if (helpflag)
+ {
+ fprintf (stderr, "Usage: collect2 [options]\n");
+ fprintf (stderr, " Wrap linker and generate constructor code if needed.\n");
+ fprintf (stderr, " Options:\n");
+ fprintf (stderr, " -debug Enable debug output\n");
+ fprintf (stderr, " --help Display this information\n");
+ fprintf (stderr, " -v, --version Display this program's version number\n");
+ fprintf (stderr, "Overview: http://gcc.gnu.org/onlinedocs/gccint/Collect2.html\n");
+ fprintf (stderr, "Report bugs: %s\n", bug_report_url);
+
+ collect_exit (0);
+ }
+
if (debug)
{
const char *ptr;
if (export_file != 0 && export_file[0])
maybe_unlink (export_file);
#endif
- if (lto_mode)
+ if (lto_mode != LTO_MODE_NONE)
maybe_run_lto_and_relink (ld1_argv, object_lst, object, false);
maybe_unlink (c_file);
if (debug)
{
- notice ("%d constructor(s) found\n", constructors.number);
- notice ("%d destructor(s) found\n", destructors.number);
- notice ("%d frame table(s) found\n", frame_tables.number);
+ notice_translated (ngettext ("%d constructor found\n",
+ "%d constructors found\n",
+ constructors.number),
+ constructors.number);
+ notice_translated (ngettext ("%d destructor found\n",
+ "%d destructors found\n",
+ destructors.number),
+ destructors.number);
+ notice_translated (ngettext("%d frame table found\n",
+ "%d frame tables found\n",
+ frame_tables.number),
+ frame_tables.number);
}
/* If the scan exposed nothing of special interest, there's no need to
\f
#ifdef OBJECT_FORMAT_NONE
-/* Check to make sure the file is an ELF file. LTO objects must
- be in ELF format. */
+/* Check to make sure the file is an LTO object file. */
static bool
-is_elf (const char *prog_name)
+maybe_lto_object_file (const char *prog_name)
{
FILE *f;
- char buf[4];
- static char magic[4] = { 0x7f, 'E', 'L', 'F' };
+ unsigned char buf[4];
+ int i;
+
+ static unsigned char elfmagic[4] = { 0x7f, 'E', 'L', 'F' };
+ static unsigned char coffmagic[2] = { 0x4c, 0x01 };
+ static unsigned char coffmagic_x64[2] = { 0x64, 0x86 };
+ static unsigned char machomagic[4][4] = {
+ { 0xcf, 0xfa, 0xed, 0xfe },
+ { 0xce, 0xfa, 0xed, 0xfe },
+ { 0xfe, 0xed, 0xfa, 0xcf },
+ { 0xfe, 0xed, 0xfa, 0xce }
+ };
- f = fopen (prog_name, "r");
+ f = fopen (prog_name, "rb");
if (f == NULL)
return false;
if (fread (buf, sizeof (buf), 1, f) != 1)
buf[0] = 0;
fclose (f);
- return memcmp (buf, magic, sizeof (magic)) == 0;
+
+ if (memcmp (buf, elfmagic, sizeof (elfmagic)) == 0
+ || memcmp (buf, coffmagic, sizeof (coffmagic)) == 0
+ || memcmp (buf, coffmagic_x64, sizeof (coffmagic_x64)) == 0)
+ return true;
+ for (i = 0; i < 4; i++)
+ if (memcmp (buf, machomagic[i], sizeof (machomagic[i])) == 0)
+ return true;
+
+ return false;
}
/* Generic version to scan the name list of the loaded program for
if (which_pass == PASS_SECOND)
return;
- /* LTO objects must be in ELF format. This check prevents
+ /* LTO objects must be in a known format. This check prevents
us from accepting an archive containing LTO objects, which
gcc cannnot currently handle. */
- if (which_pass == PASS_LTOINFO && !is_elf (prog_name))
+ if (which_pass == PASS_LTOINFO && !maybe_lto_object_file (prog_name))
return;
/* If we do not have an `nm', complain. */
/* Look for the LTO info marker symbol, and add filename to
the LTO objects list if found. */
for (p = buf; (ch = *p) != '\0' && ch != '\n'; p++)
- if (ch == ' '
- && (strncmp (p + 1, "__gnu_lto_v1", 12) == 0)
- && ISSPACE (p[13]))
+ if (ch == ' ' && p[1] == '_' && p[2] == '_'
+ && (strncmp (p + (p[3] == '_' ? 2 : 1), "__gnu_lto_v1", 12) == 0)
+ && ISSPACE (p[p[3] == '_' ? 14 : 13]))
{
add_lto_object (<o_objects, prog_name);
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