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2011-04-04 Jakub Jelinek <jakub@redhat.com>
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* toplev.cc (toplev_main_argv): New variable.
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(toplev_main): Initialize it.
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* graphite.cc (init_isl_pointers): Load libisl.so.23 from gcc's private
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directory.
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--- gcc/toplev.cc.jj 2008-12-09 23:59:10.000000000 +0100
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+++ gcc/toplev.cc 2009-01-27 14:33:52.000000000 +0100
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@@ -113,6 +113,8 @@ static void finalize (bool);
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static void crash_signal (int) ATTRIBUTE_NORETURN;
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static void compile_file (void);
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+const char **toplev_main_argv;
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+
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/* Decoded options, and number of such options. */
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struct cl_decoded_option *save_decoded_options;
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unsigned int save_decoded_options_count;
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@@ -2239,6 +2241,8 @@ toplev::main (int argc, char **argv)
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expandargv (&argc, &argv);
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+ toplev_main_argv = CONST_CAST2 (const char **, char **, argv);
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+
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/* Initialization of GCC's environment, and diagnostics. */
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general_init (argv[0], m_init_signals);
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--- gcc/graphite.cc.jj 2010-12-01 10:24:32.000000000 -0500
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+++ gcc/graphite.cc 2010-12-01 11:46:07.832118193 -0500
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@@ -64,11 +64,39 @@ __typeof (isl_pointers__) isl_pointers__
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static bool
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init_isl_pointers (void)
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{
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- void *h;
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+ void *h = NULL;
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+ extern const char **toplev_main_argv;
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+ char *buf, *p;
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+ size_t len;
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if (isl_pointers__.inited)
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return isl_pointers__.h != NULL;
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- h = dlopen ("libisl.so.23", RTLD_LAZY);
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+ len = progname - toplev_main_argv[0];
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+ buf = XALLOCAVAR (char, len + sizeof "libisl.so.23");
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+ memcpy (buf, toplev_main_argv[0], len);
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+ strcpy (buf + len, "libisl.so.23");
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+ len += sizeof "libisl.so.23";
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+ p = strstr (buf, "/libexec/");
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+ if (p != NULL)
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+ {
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+ while (1)
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+ {
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+ char *q = strstr (p + 8, "/libexec/");
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+ if (q == NULL)
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+ break;
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+ p = q;
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+ }
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+ memmove (p + 4, p + 8, len - (p + 8 - buf));
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+ h = dlopen (buf, RTLD_LAZY);
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+ if (h == NULL)
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+ {
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+ len = progname - toplev_main_argv[0];
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+ memcpy (buf, toplev_main_argv[0], len);
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+ strcpy (buf + len, "libisl.so.23");
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+ }
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+ }
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+ if (h == NULL)
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+ h = dlopen (buf, RTLD_LAZY);
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isl_pointers__.h = h;
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if (h == NULL)
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return false;
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