/* Wrapper to call lto. Used by collect2 and the linker plugin.
- Copyright (C) 2009 Free Software Foundation, Inc.
+ Copyright (C) 2009, 2010 Free Software Foundation, Inc.
Factored out of collect2 by Rafael Espindola <espindola@google.com>
The above will print something like
/tmp/ccwbQ8B2.lto.o
- If -fwhopr is used instead, more than one file might be produced
+ If WHOPR is used instead, more than one file might be produced
./ccXj2DTk.lto.ltrans.o
./ccCJuXGv.lto.ltrans.o
*/
#include "config.h"
#include "system.h"
#include "coretypes.h"
-#include "tm.h"
#include "intl.h"
-#include "libiberty.h"
+#include "diagnostic.h"
+#include "obstack.h"
+#include "opts.h"
+#include "options.h"
+#include "simple-object.h"
-int debug; /* true if -debug */
+/* From lto-streamer.h which we cannot include with -fkeep-inline-functions.
+ ??? Split out a lto-streamer-core.h. */
+
+#define LTO_SECTION_NAME_PREFIX ".gnu.lto_"
+
+/* End of lto-streamer.h copy. */
+
+int debug; /* true if -save-temps. */
+int verbose; /* true if -v. */
enum lto_mode_d {
- LTO_MODE_NONE, /* Not doing LTO. */
- LTO_MODE_LTO, /* Normal LTO. */
- LTO_MODE_WHOPR /* WHOPR. */
+ LTO_MODE_NONE, /* Not doing LTO. */
+ LTO_MODE_LTO, /* Normal LTO. */
+ LTO_MODE_WHOPR /* WHOPR. */
};
/* Current LTO mode. */
static enum lto_mode_d lto_mode = LTO_MODE_NONE;
+static char *ltrans_output_file;
+static char *flto_out;
+static char *args_name;
+static unsigned int nr;
+static char **input_names;
+static char **output_names;
+static char *makefile;
+
+static void maybe_unlink_file (const char *);
+
+ /* Delete tempfiles. */
+
+static void
+lto_wrapper_cleanup (void)
+{
+ static bool cleanup_done = false;
+ unsigned int i;
+
+ if (cleanup_done)
+ return;
+
+ /* Setting cleanup_done prevents an infinite loop if one of the
+ calls to maybe_unlink_file fails. */
+ cleanup_done = true;
+
+ if (ltrans_output_file)
+ maybe_unlink_file (ltrans_output_file);
+ if (flto_out)
+ maybe_unlink_file (flto_out);
+ if (args_name)
+ maybe_unlink_file (args_name);
+ if (makefile)
+ maybe_unlink_file (makefile);
+ for (i = 0; i < nr; ++i)
+ {
+ maybe_unlink_file (input_names[i]);
+ if (output_names[i])
+ maybe_unlink_file (output_names[i]);
+ }
+}
+
+static void
+fatal_signal (int signum)
+{
+ signal (signum, SIG_DFL);
+ lto_wrapper_cleanup ();
+ /* Get the same signal again, this time not handled,
+ so its normal effect occurs. */
+ kill (getpid (), signum);
+}
+
/* Just die. CMSGID is the error message. */
static void __attribute__ ((format (printf, 1, 2)))
fprintf (stderr, "\n");
va_end (ap);
+ lto_wrapper_cleanup ();
exit (FATAL_EXIT_CODE);
}
fprintf (stderr, ": %s\n", xstrerror (e));
va_end (ap);
+ lto_wrapper_cleanup ();
exit (FATAL_EXIT_CODE);
}
const char *errmsg;
int err;
- if (debug)
+ if (verbose)
{
char **p_argv;
const char *str;
if (pex == NULL)
fatal_perror ("pex_init failed");
- errmsg = pex_run (pex, PEX_LAST | PEX_SEARCH, argv[0], argv, NULL,
+ /* Do not use PEX_LAST here, we use our stdout for communicating with
+ collect2 or the linker-plugin. Any output from the sub-process
+ will confuse that. */
+ errmsg = pex_run (pex, PEX_SEARCH, argv[0], argv, NULL,
NULL, &err);
if (errmsg != NULL)
{
{
if (! debug)
{
- if (unlink_if_ordinary (file))
+ if (unlink_if_ordinary (file)
+ && errno != ENOENT)
fatal_perror ("deleting LTRANS file %s", file);
}
else
{
struct pex_obj *pex;
char *new_argv[3];
- char *args_name = make_temp_file (".args");
- char *at_args = concat ("@", args_name, NULL);
- FILE *args = fopen (args_name, "w");
+ char *at_args;
+ FILE *args;
int status;
+ args_name = make_temp_file (".args");
+ at_args = concat ("@", args_name, NULL);
+ args = fopen (args_name, "w");
if (args == NULL)
fatal ("failed to open %s", args_name);
collect_wait (new_argv[0], pex);
maybe_unlink_file (args_name);
- free (args_name);
+ args_name = NULL;
free (at_args);
}
+/* Template of LTRANS dumpbase suffix. */
+#define DUMPBASE_SUFFIX ".ltrans18446744073709551615"
+
+/* Create decoded options from the COLLECT_GCC and COLLECT_GCC_OPTIONS
+ environment according to LANG_MASK. */
+
+static void
+get_options_from_collect_gcc_options (const char *collect_gcc,
+ const char *collect_gcc_options,
+ unsigned int lang_mask,
+ struct cl_decoded_option **decoded_options,
+ unsigned int *decoded_options_count)
+{
+ struct obstack argv_obstack;
+ char *argv_storage;
+ const char **argv;
+ int j, k, argc;
+
+ argv_storage = xstrdup (collect_gcc_options);
+ obstack_init (&argv_obstack);
+ obstack_ptr_grow (&argv_obstack, collect_gcc);
+
+ for (j = 0, k = 0; argv_storage[j] != '\0'; ++j)
+ {
+ if (argv_storage[j] == '\'')
+ {
+ obstack_ptr_grow (&argv_obstack, &argv_storage[k]);
+ ++j;
+ do
+ {
+ if (argv_storage[j] == '\0')
+ fatal ("malformed COLLECT_GCC_OPTIONS");
+ else if (strncmp (&argv_storage[j], "'\\''", 4) == 0)
+ {
+ argv_storage[k++] = '\'';
+ j += 4;
+ }
+ else if (argv_storage[j] == '\'')
+ break;
+ else
+ argv_storage[k++] = argv_storage[j++];
+ }
+ while (1);
+ argv_storage[k++] = '\0';
+ }
+ }
+
+ obstack_ptr_grow (&argv_obstack, NULL);
+ argc = obstack_object_size (&argv_obstack) / sizeof (void *) - 1;
+ argv = XOBFINISH (&argv_obstack, const char **);
+
+ decode_cmdline_options_to_array (argc, (const char **)argv,
+ lang_mask,
+ decoded_options, decoded_options_count);
+ obstack_free (&argv_obstack, NULL);
+}
+
+/* Append OPTION to the options array DECODED_OPTIONS with size
+ DECODED_OPTIONS_COUNT. */
+
+static void
+append_option (struct cl_decoded_option **decoded_options,
+ unsigned int *decoded_options_count,
+ struct cl_decoded_option *option)
+{
+ ++*decoded_options_count;
+ *decoded_options
+ = (struct cl_decoded_option *)
+ xrealloc (*decoded_options,
+ (*decoded_options_count
+ * sizeof (struct cl_decoded_option)));
+ memcpy (&(*decoded_options)[*decoded_options_count - 1], option,
+ sizeof (struct cl_decoded_option));
+}
+
+/* Try to merge and complain about options FDECODED_OPTIONS when applied
+ ontop of DECODED_OPTIONS. */
+
+static void
+merge_and_complain (struct cl_decoded_option **decoded_options,
+ unsigned int *decoded_options_count,
+ struct cl_decoded_option *fdecoded_options,
+ unsigned int fdecoded_options_count)
+{
+ unsigned int i, j;
+
+ /* ??? Merge options from files. Most cases can be
+ handled by either unioning or intersecting
+ (for example -fwrapv is a case for unioning,
+ -ffast-math is for intersection). Most complaints
+ about real conflicts between different options can
+ be deferred to the compiler proper. Options that
+ we can neither safely handle by intersection nor
+ unioning would need to be complained about here.
+ Ideally we'd have a flag in the opt files that
+ tells whether to union or intersect or reject.
+ In absence of that it's unclear what a good default is.
+ It's also difficult to get positional handling correct. */
+
+ /* The following does what the old LTO option code did,
+ union all target and a selected set of common options. */
+ for (i = 0; i < fdecoded_options_count; ++i)
+ {
+ struct cl_decoded_option *foption = &fdecoded_options[i];
+ switch (foption->opt_index)
+ {
+ default:
+ if (!(cl_options[foption->opt_index].flags & CL_TARGET))
+ break;
+
+ /* Fallthru. */
+ case OPT_fPIC:
+ case OPT_fpic:
+ case OPT_fpie:
+ case OPT_fcommon:
+ case OPT_fexceptions:
+ case OPT_fgnu_tm:
+ /* Do what the old LTO code did - collect exactly one option
+ setting per OPT code, we pick the first we encounter.
+ ??? This doesn't make too much sense, but when it doesn't
+ then we should complain. */
+ for (j = 0; j < *decoded_options_count; ++j)
+ if ((*decoded_options)[j].opt_index == foption->opt_index)
+ break;
+ if (j == *decoded_options_count)
+ append_option (decoded_options, decoded_options_count, foption);
+ break;
+ }
+ }
+}
/* Execute gcc. ARGC is the number of arguments. ARGV contains the arguments. */
static void
run_gcc (unsigned argc, char *argv[])
{
- unsigned i;
- unsigned new_argc = argc;
+ unsigned i, j;
const char **new_argv;
const char **argv_ptr;
- char *ltrans_output_file = NULL;
- char *flto_out = NULL;
char *list_option_full = NULL;
+ const char *linker_output = NULL;
+ const char *collect_gcc, *collect_gcc_options;
+ int parallel = 0;
+ int jobserver = 0;
+ bool no_partition = false;
+ struct cl_decoded_option *fdecoded_options = NULL;
+ unsigned int fdecoded_options_count = 0;
+ struct cl_decoded_option *decoded_options;
+ unsigned int decoded_options_count;
+ struct obstack argv_obstack;
+ int new_head_argc;
+
+ /* Get the driver and options. */
+ collect_gcc = getenv ("COLLECT_GCC");
+ if (!collect_gcc)
+ fatal ("environment variable COLLECT_GCC must be set");
+ collect_gcc_options = getenv ("COLLECT_GCC_OPTIONS");
+ if (!collect_gcc_options)
+ fatal ("environment variable COLLECT_GCC_OPTIONS must be set");
+ get_options_from_collect_gcc_options (collect_gcc, collect_gcc_options,
+ CL_LANG_ALL,
+ &decoded_options,
+ &decoded_options_count);
+
+ /* Look at saved options in the IL files. */
+ for (i = 1; i < argc; ++i)
+ {
+ char *data, *p;
+ char *fopts;
+ int fd;
+ const char *errmsg;
+ int err;
+ off_t file_offset = 0, offset, length;
+ long loffset;
+ simple_object_read *sobj;
+ int consumed;
+ struct cl_decoded_option *f2decoded_options;
+ unsigned int f2decoded_options_count;
+ char *filename = argv[i];
+ if ((p = strrchr (argv[i], '@'))
+ && p != argv[i]
+ && sscanf (p, "@%li%n", &loffset, &consumed) >= 1
+ && strlen (p) == (unsigned int) consumed)
+ {
+ filename = XNEWVEC (char, p - argv[i] + 1);
+ memcpy (filename, argv[i], p - argv[i]);
+ filename[p - argv[i]] = '\0';
+ file_offset = (off_t) loffset;
+ }
+ fd = open (argv[i], O_RDONLY);
+ if (fd == -1)
+ continue;
+ sobj = simple_object_start_read (fd, file_offset, "__GNU_LTO",
+ &errmsg, &err);
+ if (!sobj)
+ {
+ close (fd);
+ continue;
+ }
+ if (!simple_object_find_section (sobj, LTO_SECTION_NAME_PREFIX "." "opts",
+ &offset, &length, &errmsg, &err))
+ {
+ simple_object_release_read (sobj);
+ close (fd);
+ continue;
+ }
+ lseek (fd, file_offset + offset, SEEK_SET);
+ data = (char *)xmalloc (length);
+ read (fd, data, length);
+ fopts = data;
+ do
+ {
+ get_options_from_collect_gcc_options (collect_gcc,
+ fopts, CL_LANG_ALL,
+ &f2decoded_options,
+ &f2decoded_options_count);
+ if (!fdecoded_options)
+ {
+ fdecoded_options = f2decoded_options;
+ fdecoded_options_count = f2decoded_options_count;
+ }
+ else
+ merge_and_complain (&fdecoded_options,
+ &fdecoded_options_count,
+ f2decoded_options, f2decoded_options_count);
+
+ fopts += strlen (fopts) + 1;
+ }
+ while (fopts - data < length);
- new_argc += 8;
- new_argv = (const char **) xcalloc (sizeof (char *), new_argc);
+ free (data);
+ simple_object_release_read (sobj);
+ close (fd);
+ }
- argv_ptr = new_argv;
+ /* Initalize the common arguments for the driver. */
+ obstack_init (&argv_obstack);
+ obstack_ptr_grow (&argv_obstack, collect_gcc);
+ obstack_ptr_grow (&argv_obstack, "-xlto");
+ obstack_ptr_grow (&argv_obstack, "-c");
+
+ /* Append compiler driver arguments as far as they were merged. */
+ for (j = 1; j < fdecoded_options_count; ++j)
+ {
+ struct cl_decoded_option *option = &fdecoded_options[j];
+
+ /* File options have been properly filtered by lto-opts.c. */
+ switch (option->opt_index)
+ {
+ /* Drop arguments that we want to take from the link line. */
+ case OPT_flto_:
+ case OPT_flto:
+ case OPT_flto_partition_none:
+ case OPT_flto_partition_1to1:
+ case OPT_flto_partition_balanced:
+ continue;
+
+ default:
+ break;
+ }
+
+ /* For now do what the original LTO option code was doing - pass
+ on any CL_TARGET flag and a few selected others. */
+ switch (option->opt_index)
+ {
+ case OPT_fPIC:
+ case OPT_fpic:
+ case OPT_fpie:
+ case OPT_fcommon:
+ case OPT_fexceptions:
+ case OPT_fgnu_tm:
+ break;
+
+ default:
+ if (!(cl_options[option->opt_index].flags & CL_TARGET))
+ continue;
+ }
+
+ /* Pass the option on. */
+ for (i = 0; i < option->canonical_option_num_elements; ++i)
+ obstack_ptr_grow (&argv_obstack, option->canonical_option[i]);
+ }
+
+ /* Append linker driver arguments. Compiler options from the linker
+ driver arguments will override / merge with those from the compiler. */
+ for (j = 1; j < decoded_options_count; ++j)
+ {
+ struct cl_decoded_option *option = &decoded_options[j];
+
+ /* Do not pass on frontend specific flags not suitable for lto. */
+ if (!(cl_options[option->opt_index].flags
+ & (CL_COMMON|CL_TARGET|CL_DRIVER|CL_LTO)))
+ continue;
+
+ switch (option->opt_index)
+ {
+ case OPT_o:
+ linker_output = option->arg;
+ /* We generate new intermediate output, drop this arg. */
+ continue;
+
+ case OPT_save_temps:
+ debug = 1;
+ break;
+
+ case OPT_v:
+ verbose = 1;
+ break;
+
+ case OPT_flto_partition_none:
+ no_partition = true;
+ break;
+
+ case OPT_flto_:
+ if (strcmp (option->arg, "jobserver") == 0)
+ {
+ jobserver = 1;
+ parallel = 1;
+ }
+ else
+ {
+ parallel = atoi (option->arg);
+ if (parallel <= 1)
+ parallel = 0;
+ }
+ /* Fallthru. */
+
+ case OPT_flto:
+ lto_mode = LTO_MODE_WHOPR;
+ /* We've handled these LTO options, do not pass them on. */
+ continue;
+
+ default:
+ break;
+ }
+
+ /* Pass the option on. */
+ for (i = 0; i < option->canonical_option_num_elements; ++i)
+ obstack_ptr_grow (&argv_obstack, option->canonical_option[i]);
+ }
+
+ if (no_partition)
+ {
+ lto_mode = LTO_MODE_LTO;
+ jobserver = 0;
+ parallel = 0;
+ }
+
+ if (linker_output)
+ {
+ char *output_dir, *base, *name;
+ bool bit_bucket = strcmp (linker_output, HOST_BIT_BUCKET) == 0;
+
+ output_dir = xstrdup (linker_output);
+ base = output_dir;
+ for (name = base; *name; name++)
+ if (IS_DIR_SEPARATOR (*name))
+ base = name + 1;
+ *base = '\0';
+
+ linker_output = &linker_output[base - output_dir];
+ if (*output_dir == '\0')
+ {
+ static char current_dir[] = { '.', DIR_SEPARATOR, '\0' };
+ output_dir = current_dir;
+ }
+ if (!bit_bucket)
+ {
+ obstack_ptr_grow (&argv_obstack, "-dumpdir");
+ obstack_ptr_grow (&argv_obstack, output_dir);
+ }
+
+ obstack_ptr_grow (&argv_obstack, "-dumpbase");
+ }
+
+ /* Remember at which point we can scrub args to re-use the commons. */
+ new_head_argc = obstack_object_size (&argv_obstack) / sizeof (void *);
- *argv_ptr++ = argv[0];
- *argv_ptr++ = "-combine";
- *argv_ptr++ = "-x";
- *argv_ptr++ = "lto";
- *argv_ptr++ = "-c";
if (lto_mode == LTO_MODE_LTO)
{
flto_out = make_temp_file (".lto.o");
- *argv_ptr++ = "-o";
- *argv_ptr++ = flto_out;
+ if (linker_output)
+ obstack_ptr_grow (&argv_obstack, linker_output);
+ obstack_ptr_grow (&argv_obstack, "-o");
+ obstack_ptr_grow (&argv_obstack, flto_out);
}
- else if (lto_mode == LTO_MODE_WHOPR)
+ else
{
const char *list_option = "-fltrans-output-list=";
size_t list_option_len = strlen (list_option);
char *tmp;
- ltrans_output_file = make_temp_file (".ltrans.out");
+ if (linker_output)
+ {
+ char *dumpbase = (char *) xmalloc (strlen (linker_output)
+ + sizeof (".wpa") + 1);
+ strcpy (dumpbase, linker_output);
+ strcat (dumpbase, ".wpa");
+ obstack_ptr_grow (&argv_obstack, dumpbase);
+ }
+
+ if (linker_output && debug)
+ {
+ ltrans_output_file = (char *) xmalloc (strlen (linker_output)
+ + sizeof (".ltrans.out") + 1);
+ strcpy (ltrans_output_file, linker_output);
+ strcat (ltrans_output_file, ".ltrans.out");
+ }
+ else
+ ltrans_output_file = make_temp_file (".ltrans.out");
list_option_full = (char *) xmalloc (sizeof (char) *
(strlen (ltrans_output_file) + list_option_len + 1));
tmp = list_option_full;
- *argv_ptr++ = tmp;
+ obstack_ptr_grow (&argv_obstack, tmp);
strcpy (tmp, list_option);
tmp += list_option_len;
strcpy (tmp, ltrans_output_file);
- *argv_ptr++ = "-fwpa";
- }
- else
- fatal ("invalid LTO mode");
-
- /* Add inherited GCC options to the LTO back end command line.
- Filter out some obviously inappropriate options that will
- conflict with the options that we force above. We pass
- all of the remaining options on to LTO, and let it complain
- about any it doesn't like. Note that we invoke LTO via the
- `gcc' driver, so the usual option processing takes place.
- Except for `-flto' and `-fwhopr', we should only filter options that
- are meaningful to `ld', lest an option go silently unclaimed. */
- for (i = 1; i < argc; i++)
- {
- const char *s = argv[i];
-
- if (strcmp (s, "-flto") == 0 || strcmp (s, "-fwhopr") == 0)
- /* We've handled this LTO option, don't pass it on. */
- ;
- else if (*s == '-' && s[1] == 'o')
- {
- /* Drop `-o' and its filename argument. We will use a
- temporary file for the LTO output. The `-o' option
- will be interpreted by the linker. */
- if (s[2] == '\0')
- i++;
- }
- else
- /* Pass the option or argument to LTO. */
- *argv_ptr++ = s;
+ obstack_ptr_grow (&argv_obstack, "-fwpa");
}
- *argv_ptr = NULL;
+ /* Append the input objects and possible preceeding arguments. */
+ for (i = 1; i < argc; ++i)
+ obstack_ptr_grow (&argv_obstack, argv[i]);
+ obstack_ptr_grow (&argv_obstack, NULL);
+ new_argv = XOBFINISH (&argv_obstack, const char **);
+ argv_ptr = &new_argv[new_head_argc];
fork_execute (CONST_CAST (char **, new_argv));
- free (new_argv);
- new_argv = NULL;
if (lto_mode == LTO_MODE_LTO)
{
free (flto_out);
flto_out = NULL;
}
- else if (lto_mode == LTO_MODE_WHOPR)
+ else
{
FILE *stream = fopen (ltrans_output_file, "r");
- int c;
+ FILE *mstream = NULL;
+ struct obstack env_obstack;
if (!stream)
fatal_perror ("fopen: %s", ltrans_output_file);
- while ((c = getc (stream)) != EOF)
- putc (c, stdout);
+ /* Parse the list of LTRANS inputs from the WPA stage. */
+ obstack_init (&env_obstack);
+ nr = 0;
+ for (;;)
+ {
+ const unsigned piece = 32;
+ char *output_name = NULL;
+ char *buf, *input_name = (char *)xmalloc (piece);
+ size_t len;
+
+ buf = input_name;
+cont:
+ if (!fgets (buf, piece, stream))
+ break;
+ len = strlen (input_name);
+ if (input_name[len - 1] != '\n')
+ {
+ input_name = (char *)xrealloc (input_name, len + piece);
+ buf = input_name + len;
+ goto cont;
+ }
+ input_name[len - 1] = '\0';
+
+ if (input_name[0] == '*')
+ output_name = &input_name[1];
+
+ nr++;
+ input_names = (char **)xrealloc (input_names, nr * sizeof (char *));
+ output_names = (char **)xrealloc (output_names, nr * sizeof (char *));
+ input_names[nr-1] = input_name;
+ output_names[nr-1] = output_name;
+ }
fclose (stream);
maybe_unlink_file (ltrans_output_file);
- free (ltrans_output_file);
- free (list_option_full);
- }
- else
- fatal ("invalid LTO mode");
-}
-
+ ltrans_output_file = NULL;
-/* Parse the command line. Copy any unused argument to GCC_ARGV. ARGC is the
- number of arguments. ARGV contains the arguments. */
+ if (parallel)
+ {
+ makefile = make_temp_file (".mk");
+ mstream = fopen (makefile, "w");
+ }
-static int
-process_args (int argc, char *argv[], char *gcc_argv[])
-{
- int i;
- int j = 0;
+ /* Execute the LTRANS stage for each input file (or prepare a
+ makefile to invoke this in parallel). */
+ for (i = 0; i < nr; ++i)
+ {
+ char *output_name;
+ char *input_name = input_names[i];
+ /* If it's a pass-through file do nothing. */
+ if (output_names[i])
+ continue;
+
+ /* Replace the .o suffix with a .ltrans.o suffix and write
+ the resulting name to the LTRANS output list. */
+ obstack_grow (&env_obstack, input_name, strlen (input_name) - 2);
+ obstack_grow (&env_obstack, ".ltrans.o", sizeof (".ltrans.o"));
+ output_name = XOBFINISH (&env_obstack, char *);
+
+ /* Adjust the dumpbase if the linker output file was seen. */
+ if (linker_output)
+ {
+ char *dumpbase
+ = (char *) xmalloc (strlen (linker_output)
+ + sizeof(DUMPBASE_SUFFIX) + 1);
+ snprintf (dumpbase,
+ strlen (linker_output) + sizeof(DUMPBASE_SUFFIX),
+ "%s.ltrans%u", linker_output, i);
+ argv_ptr[0] = dumpbase;
+ }
+
+ argv_ptr[1] = "-fltrans";
+ argv_ptr[2] = "-o";
+ argv_ptr[3] = output_name;
+ argv_ptr[4] = input_name;
+ argv_ptr[5] = NULL;
+ if (parallel)
+ {
+ fprintf (mstream, "%s:\n\t@%s ", output_name, new_argv[0]);
+ for (j = 1; new_argv[j] != NULL; ++j)
+ fprintf (mstream, " '%s'", new_argv[j]);
+ fprintf (mstream, "\n");
+ /* If we are not preserving the ltrans input files then
+ truncate them as soon as we have processed it. This
+ reduces temporary disk-space usage. */
+ if (! debug)
+ fprintf (mstream, "\t@-touch -r %s %s.tem > /dev/null 2>&1 "
+ "&& mv %s.tem %s\n",
+ input_name, input_name, input_name, input_name);
+ }
+ else
+ {
+ fork_execute (CONST_CAST (char **, new_argv));
+ maybe_unlink_file (input_name);
+ }
- for (i = 1; i < argc; i ++)
- {
- if (! strcmp (argv[i], "-debug"))
- debug = 1;
- else if (! strcmp (argv[i], "-flto"))
- lto_mode = LTO_MODE_LTO;
- else if (! strcmp (argv[i], "-fwhopr"))
- lto_mode = LTO_MODE_WHOPR;
- else
+ output_names[i] = output_name;
+ }
+ if (parallel)
{
- gcc_argv[j] = argv[i];
- j++;
+ struct pex_obj *pex;
+ char jobs[32];
+
+ fprintf (mstream, "all:");
+ for (i = 0; i < nr; ++i)
+ fprintf (mstream, " \\\n\t%s", output_names[i]);
+ fprintf (mstream, "\n");
+ fclose (mstream);
+ if (!jobserver)
+ {
+ /* Avoid passing --jobserver-fd= and similar flags
+ unless jobserver mode is explicitly enabled. */
+ putenv (xstrdup ("MAKEFLAGS="));
+ putenv (xstrdup ("MFLAGS="));
+ }
+ new_argv[0] = getenv ("MAKE");
+ if (!new_argv[0])
+ new_argv[0] = "make";
+ new_argv[1] = "-f";
+ new_argv[2] = makefile;
+ i = 3;
+ if (!jobserver)
+ {
+ snprintf (jobs, 31, "-j%d", parallel);
+ new_argv[i++] = jobs;
+ }
+ new_argv[i++] = "all";
+ new_argv[i++] = NULL;
+ pex = collect_execute (CONST_CAST (char **, new_argv));
+ collect_wait (new_argv[0], pex);
+ maybe_unlink_file (makefile);
+ makefile = NULL;
+ for (i = 0; i < nr; ++i)
+ maybe_unlink_file (input_names[i]);
}
+ for (i = 0; i < nr; ++i)
+ {
+ fputs (output_names[i], stdout);
+ putc ('\n', stdout);
+ free (input_names[i]);
+ }
+ nr = 0;
+ free (output_names);
+ free (input_names);
+ free (list_option_full);
+ obstack_free (&env_obstack, NULL);
}
- return j;
+ obstack_free (&argv_obstack, NULL);
}
int
main (int argc, char *argv[])
{
- char **gcc_argv;
- int gcc_argc;
+ const char *p;
+
+ p = argv[0] + strlen (argv[0]);
+ while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
+ --p;
+ progname = p;
+
+ xmalloc_set_program_name (progname);
gcc_init_libintl ();
+ diagnostic_initialize (global_dc, 0);
+
+ if (signal (SIGINT, SIG_IGN) != SIG_IGN)
+ signal (SIGINT, fatal_signal);
+#ifdef SIGHUP
+ if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
+ signal (SIGHUP, fatal_signal);
+#endif
+ if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
+ signal (SIGTERM, fatal_signal);
+#ifdef SIGPIPE
+ if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
+ signal (SIGPIPE, fatal_signal);
+#endif
+#ifdef SIGCHLD
+ /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
+ receive the signal. A different setting is inheritable */
+ signal (SIGCHLD, SIG_DFL);
+#endif
+
/* We may be called with all the arguments stored in some file and
passed with @file. Expand them into argv before processing. */
expandargv (&argc, &argv);
- gcc_argv = (char **) xcalloc (sizeof (char *), argc);
- gcc_argc = process_args (argc, argv, gcc_argv);
- run_gcc (gcc_argc, gcc_argv);
- free (gcc_argv);
+
+ run_gcc (argc, argv);
return 0;
}
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