[patch] gcc41-pr22313.patch

gcc41-pr22313.patch (text/plain), 1.39 KB, created by Ryan Hill (RETIRED) on 2006-10-21 19:19:05 UTC

--- branches/gcc-4_1-branch/gcc/dwarf2out.c	2006/09/01 15:38:00	116627
+++ branches/gcc-4_1-branch/gcc/dwarf2out.c	2006/09/01 15:47:29	116628
@@ -656,13 +656,19 @@
 	{
 	  dw_cfi_ref xcfi;
 
-	  fde->dw_fde_current_label = label = xstrdup (label);
+	  label = xstrdup (label);
 
 	  /* Set the location counter to the new label.  */
 	  xcfi = new_cfi ();
-	  xcfi->dw_cfi_opc = DW_CFA_advance_loc4;
+	  /* If we have a current label, advance from there, otherwise
+	     set the location directly using set_loc.  */
+	  xcfi->dw_cfi_opc = fde->dw_fde_current_label
+			     ? DW_CFA_advance_loc4
+			     : DW_CFA_set_loc;
 	  xcfi->dw_cfi_oprnd1.dw_cfi_addr = label;
 	  add_cfi (&fde->dw_fde_cfi, xcfi);
+
+	  fde->dw_fde_current_label = label;
 	}
 
       add_cfi (&fde->dw_fde_cfi, cfi);
@@ -2050,6 +2056,7 @@
 	  else
 	    dw2_asm_output_addr (DWARF2_ADDR_SIZE,
 				 cfi->dw_cfi_oprnd1.dw_cfi_addr, NULL);
+	  fde->dw_fde_current_label = cfi->dw_cfi_oprnd1.dw_cfi_addr;
 	  break;
 
 	case DW_CFA_advance_loc1:
@@ -3934,6 +3941,10 @@
   fde->dw_fde_unlikely_section_label = cfun->cold_section_label;
   fde->dw_fde_unlikely_section_end_label = cfun->cold_section_end_label;
   have_switched_text_section = true;
+
+  /* Reset the current label on switching text sections, so that we
+     don't attempt to advance_loc4 between labels in different sections.  */
+  fde->dw_fde_current_label = NULL;
 }
 
 #endif