[IA64] get back PT_IA_64_UNWIND program header

Explicitly put the unwind section into its own program-header.  This
used to be unnecessary (probably because binutils did it for us), but
with current binutils (e.g., v2.17.50.20070804) we won't get
the PT_IA_64_UNWIND header without this patch which will break
unwinding in a debugger and simulators such as Ski.

Signed-off-by: David Mosberger-Tang <dmosberger@gmail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 446f12d866b3e1449e5b0ea039be750c1863de9e..00232b4357ba20eeab9ef1dd82dddbaf489d0a57 100644 (file)
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -21,6 +21,7 @@ PHDRS {
   percpu PT_LOAD;
   data   PT_LOAD;
   note   PT_NOTE;
+  unwind 0x70000001; /* PT_IA_64_UNWIND, but ld doesn't match the name */
 }
 SECTIONS
 {
@@ -103,7 +104,8 @@ SECTIONS
          __start_unwind = .;
          *(.IA_64.unwind*)
          __end_unwind = .;
-       }
+       } :code :unwind
+  code_continues2 : {} : code
 
   RODATA