re PR target/17751 (Undefined .LCTOC0 symbol)

	PR target/17751
	* config/rs6000/rs6000.c (rs6000_file_start): Create toc section
	for AIX ABI or ELF -fPIC.
	(rs6000_emit_load_toc_table): Don't create toc_section here.
	(rs6000_xcoff_file_start): Nor here.

	* gcc.dg/ppc64-toc.c: New test.

From-SVN: r94166

gcc/ChangeLog

+2005-01-24  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/17751
+	* config/rs6000/rs6000.c (rs6000_file_start): Create toc section
+	for AIX ABI or ELF -fPIC.
+	(rs6000_emit_load_toc_table): Don't create toc_section here.
+	(rs6000_xcoff_file_start): Nor here.
+
 2005-01-24  J"orn Rennecke <joern.rennecke@st.com>
 
 	* sh.c (ra.h): Don't #include.

gcc/config/rs6000/rs6000.c

@@ -1768,6 +1768,12 @@ rs6000_file_start (void)
       if (*start == '\0')
 	putc ('\n', file);
     }
+
+  if (DEFAULT_ABI == ABI_AIX || (TARGET_ELF && flag_pic == 2))
+    {
+      toc_section ();
+      text_section ();
+    }
 }
 
 
@@ -13294,13 +13300,6 @@ rs6000_emit_load_toc_table (int fromprolog)
 		   : gen_reg_rtx (Pmode));
       rtx symF;
 
-      /* possibly create the toc section */
-      if (! toc_initialized)
-	{
-	  toc_section ();
-	  function_section (current_function_decl);
-	}
-
       if (fromprolog)
 	{
 	  rtx symL;
@@ -18086,7 +18085,6 @@ rs6000_xcoff_file_start (void)
   fputs ("\t.file\t", asm_out_file);
   output_quoted_string (asm_out_file, main_input_filename);
   fputc ('\n', asm_out_file);
-  toc_section ();
   if (write_symbols != NO_DEBUG)
     private_data_section ();
   text_section ();

gcc/testsuite/ChangeLog

 2005-01-24  Jakub Jelinek  <jakub@redhat.com>
 
+	PR target/17751
+	* gcc.dg/ppc64-toc.c: New test.
+
 	* g++.dg/tree-ssa/empty-1.C: New test.
 
 	PR middle-end/19551

gcc/testsuite/gcc.dg/ppc64-toc.c

+/* { dg-do link } */
+/* { dg-options "-m64 -mminimal-toc" { target powerpc64-*-* } } */
+
+char *strchr (const char *, int);
+
+int
+foo (int a)
+{
+  int b;
+
+  b = 0;
+  if ("/"[1] != '\0')
+    if (strchr ("/", a))
+      b = 1;
+  return b;
+}
+
+int
+main (void)
+{
+  return 0;
+}