Fix 64 bit red zone frame size in AIX

diff --git a/gdb/rs6000-aix-tdep.c b/gdb/rs6000-aix-tdep.c
index 829f55981ca9a25d02b467180984f49a4e22a79d..1894f60d01450861e5754b5cccf337fb489da376 100644 (file)
--- a/gdb/rs6000-aix-tdep.c
+++ b/gdb/rs6000-aix-tdep.c
@@ -1391,7 +1391,9 @@ rs6000_aix_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
        224.  */
     set_gdbarch_frame_red_zone_size (gdbarch, 224);
   else
-    set_gdbarch_frame_red_zone_size (gdbarch, 0);
+    /* In 64 bit mode the red zone should have 18 8 byte GPRS + 18 8 byte
+       FPRS making it 288 bytes.  This is 16 byte aligned as well.  */
+    set_gdbarch_frame_red_zone_size (gdbarch, 288);
 
   if (tdep->wordsize == 8)
     set_gdbarch_wchar_bit (gdbarch, 32);