[XTENSA] Remove non-rt signal handling

The non-rt signal handling was never really used, so we don't break
anything. This patch also cleans up the signal stack-frame to make
it independent from the processor configuration. It also improves
the method used for controlling single-stepping. We now save and
restore the 'icountlevel' register that controls single stepping
and set or clear the saved state to enable or disable it.

Signed-off-by: Chris Zankel <chris@zankel.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/include/asm-xtensa/elf.h b/include/asm-xtensa/elf.h
index f0f9fd8560a5..1569b53cec91 100644
--- a/include/asm-xtensa/elf.h
+++ b/include/asm-xtensa/elf.h
@@ -13,7 +13,6 @@
 #ifndef _XTENSA_ELF_H
 #define _XTENSA_ELF_H
 
-#include <asm/variant/core.h>
 #include <asm/ptrace.h>
 
 /* Xtensa processor ELF architecture-magic number */
@@ -49,7 +48,7 @@ typedef struct {
         elf_greg_t lcount;
         elf_greg_t sar;
         elf_greg_t syscall;
-        elf_greg_t ar[XCHAL_NUM_AREGS];
+        elf_greg_t ar[64];
 } xtensa_gregset_t;
 
 #define ELF_NGREG       (sizeof(xtensa_gregset_t) / sizeof(elf_greg_t))