/* Wrapper for ar/ranlib/nm to pass the LTO plugin.
- Copyright (C) 2011 Free Software Foundation, Inc.
+ Copyright (C) 2011-2019 Free Software Foundation, Inc.
Contributed by Andi Kleen.
This file is part of GCC.
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
-#include <stdio.h>
#include "config.h"
#include "system.h"
#include "libiberty.h"
+#include "file-find.h"
#ifndef PERSONALITY
#error "Please set personality"
#endif
+/* The exec prefix as derived at compile-time from --prefix. */
+
+static const char standard_exec_prefix[] = STANDARD_EXEC_PREFIX;
+
+/* The libexec prefix as derived at compile-time from --prefix. */
+
static const char standard_libexec_prefix[] = STANDARD_LIBEXEC_PREFIX;
+
+/* The bindir prefix as derived at compile-time from --prefix. */
+
static const char standard_bin_prefix[] = STANDARD_BINDIR_PREFIX;
+/* A relative path to be used in finding the location of tools
+ relative to this program. */
+
+static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
+
+/* The exec prefix as relocated from the location of this program. */
+
+static const char *self_exec_prefix;
+
+/* The libexec prefix as relocated from the location of this program. */
+
+static const char *self_libexec_prefix;
+
+/* The tools prefix as relocated from the location of this program. */
+
+static const char *self_tooldir_prefix;
+
+/* The name of the machine that is being targeted. */
+
+static const char *const target_machine = DEFAULT_TARGET_MACHINE;
+
+/* The target version. */
+
+static const char *const target_version = DEFAULT_TARGET_VERSION;
+
+/* The collection of target specific path prefixes. */
+
+static struct path_prefix target_path;
+
+/* The collection path prefixes. */
+
+static struct path_prefix path;
+
+/* The directory separator. */
+
static const char dir_separator[] = { DIR_SEPARATOR, 0 };
+static void
+setup_prefixes (const char *exec_path)
+{
+ const char *self;
+
+ self = getenv ("GCC_EXEC_PREFIX");
+ if (!self)
+ self = exec_path;
+ else
+ self = concat (self, "gcc-" PERSONALITY, NULL);
+
+ /* Relocate the exec prefix. */
+ self_exec_prefix = make_relative_prefix (self,
+ standard_bin_prefix,
+ standard_exec_prefix);
+ if (self_exec_prefix == NULL)
+ self_exec_prefix = standard_exec_prefix;
+
+ /* Relocate libexec prefix. */
+ self_libexec_prefix = make_relative_prefix (self,
+ standard_bin_prefix,
+ standard_libexec_prefix);
+ if (self_libexec_prefix == NULL)
+ self_libexec_prefix = standard_libexec_prefix;
+
+
+ /* Build the relative path to the target-specific tool directory. */
+ self_tooldir_prefix = concat (tooldir_base_prefix, target_machine,
+ dir_separator, NULL);
+ self_tooldir_prefix = concat (self_exec_prefix, target_machine,
+ dir_separator, target_version, dir_separator,
+ self_tooldir_prefix, NULL);
+
+ /* Add the target-specific tool bin prefix. */
+ prefix_from_string (concat (self_tooldir_prefix, "bin", NULL), &target_path);
+
+ /* Add the target-specific libexec prefix. */
+ self_libexec_prefix = concat (self_libexec_prefix, target_machine,
+ dir_separator, target_version,
+ dir_separator, NULL);
+ prefix_from_string (self_libexec_prefix, &target_path);
+
+ /* Add path as a last resort. */
+ prefix_from_env ("PATH", &path);
+}
+
int
-main(int ac, char **av)
+main (int ac, char **av)
{
- const char *nprefix;
const char *exe_name;
+#if HAVE_LTO_PLUGIN > 0
char *plugin;
+#endif
int k, status, err;
const char *err_msg;
const char **nargv;
bool is_ar = !strcmp (PERSONALITY, "ar");
+ int exit_code = FATAL_EXIT_CODE;
+ int i;
- exe_name = PERSONALITY;
-#ifdef CROSS_DIRECTORY_STRUCTURE
- exe_name = concat (target_machine, "-", exe_name, NULL);
-#endif
+ setup_prefixes (av[0]);
+
+ /* Not using getopt for now. */
+ for (i = 0; i < ac; i++)
+ if (!strncmp (av[i], "-B", 2))
+ {
+ const char *arg = av[i] + 2;
+ const char *end;
+ size_t len;
+
+ memmove (av + i, av + i + 1, sizeof (char *) * ((ac + 1) - i));
+ ac--;
+ if (*arg == 0)
+ {
+ arg = av[i];
+ if (!arg)
+ {
+ fprintf (stderr, "Usage: gcc-ar [-B prefix] ar arguments ...\n");
+ exit (EXIT_FAILURE);
+ }
+ memmove (av + i, av + i + 1, sizeof (char *) * ((ac + 1) - i));
+ ac--;
+ i++;
+ }
+ /* else it's a joined argument */
+
+ len = strlen (arg);
+ if (len > 0)
+ len--;
+ end = arg + len;
- /* Find plugin */
- /* XXX implement more magic from gcc.c? */
- nprefix = getenv ("GCC_EXEC_PREFIX");
- if (!nprefix)
- nprefix = standard_libexec_prefix;
-
- nprefix = make_relative_prefix (av[0],
- standard_bin_prefix,
- nprefix);
- plugin = concat (nprefix,
- dir_separator,
- DEFAULT_TARGET_MACHINE,
- dir_separator,
- DEFAULT_TARGET_VERSION,
- dir_separator,
- LTOPLUGINSONAME,
- NULL);
- if (access (plugin, X_OK))
+ /* Always add a dir separator for the prefix list. */
+ if (end > arg && !IS_DIR_SEPARATOR (*end))
+ {
+ static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
+ arg = concat (arg, dir_separator_str, NULL);
+ }
+
+ add_prefix_begin (&path, arg);
+ add_prefix_begin (&target_path, arg);
+ break;
+ }
+
+#if HAVE_LTO_PLUGIN > 0
+ /* Find the GCC LTO plugin */
+ plugin = find_a_file (&target_path, LTOPLUGINSONAME, R_OK);
+ if (!plugin)
{
- fprintf (stderr, "%s: Cannot find plugin %s\n", av[0], plugin);
+ fprintf (stderr, "%s: Cannot find plugin '%s'\n", av[0], LTOPLUGINSONAME);
exit (1);
}
+#endif
- /* Create new command line with plugin */
+ /* Find the wrapped binutils program. */
+ exe_name = find_a_file (&target_path, PERSONALITY, X_OK);
+ if (!exe_name)
+ {
+ const char *real_exe_name = PERSONALITY;
+#ifdef CROSS_DIRECTORY_STRUCTURE
+ real_exe_name = concat (target_machine, "-", PERSONALITY, NULL);
+#endif
+ exe_name = find_a_file (&path, real_exe_name, X_OK);
+ if (!exe_name)
+ {
+ fprintf (stderr, "%s: Cannot find binary '%s'\n", av[0],
+ real_exe_name);
+ exit (1);
+ }
+ }
+
+ /* Create new command line with plugin - if we have one, otherwise just
+ copy the command through. */
nargv = XCNEWVEC (const char *, ac + 4);
nargv[0] = exe_name;
+#if HAVE_LTO_PLUGIN > 0
nargv[1] = "--plugin";
nargv[2] = plugin;
if (is_ar && av[1] && av[1][0] != '-')
- av[1] = concat("-", av[1], NULL);
+ av[1] = concat ("-", av[1], NULL);
for (k = 1; k < ac; k++)
nargv[2 + k] = av[k];
nargv[2 + k] = NULL;
+#else
+ if (is_ar && av[1] && av[1][0] != '-')
+ av[1] = concat ("-", av[1], NULL);
+ for (k = 1; k < ac; k++)
+ nargv[k] = av[k];
+ nargv[k] = NULL;
+#endif
/* Run utility */
/* ??? the const is misplaced in pex_one's argv? */
err_msg = pex_one (PEX_LAST|PEX_SEARCH,
exe_name,
CONST_CAST2 (char * const *, const char **, nargv),
- concat("gcc-", exe_name, NULL),
+ concat ("gcc-", exe_name, NULL),
NULL,NULL, &status, &err);
if (err_msg)
- fprintf(stderr, "Error running %s: %s\n", exe_name, err_msg);
+ fprintf (stderr, "Error running %s: %s\n", exe_name, err_msg);
+ else if (status)
+ {
+ if (WIFSIGNALED (status))
+ {
+ int sig = WTERMSIG (status);
+ fprintf (stderr, "%s terminated with signal %d [%s]%s\n",
+ exe_name, sig, strsignal (sig),
+ WCOREDUMP (status) ? ", core dumped" : "");
+ }
+ else if (WIFEXITED (status))
+ exit_code = WEXITSTATUS (status);
+ }
+ else
+ exit_code = SUCCESS_EXIT_CODE;
- return err;
+ return exit_code;
}
projects / thirdparty / gcc.git / blobdiff