* alpha-linux-tdep.c: New file. Move alpha_linux_sigtramp_offset

to here...
* alpha-tdep.c: ...from here.
* config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-linux-tdep.o.

1 files changed, 0 insertions, 70 deletions

diff --git a/gdb/alpha-tdep.c b/gdb/alpha-tdep.c
index 4f89237..537ba92 100644
--- a/gdb/alpha-tdep.c
+++ b/gdb/alpha-tdep.c
@@ -201,76 +201,6 @@ alpha_osf_in_sigtramp (CORE_ADDR pc, char *func_name)
   return (func_name != NULL && STREQ ("__sigtramp", func_name));
 }
 
-/* Under GNU/Linux, signal handler invocations can be identified by the
-   designated code sequence that is used to return from a signal
-   handler.  In particular, the return address of a signal handler
-   points to the following sequence (the first instruction is quadword
-   aligned):
-
-   bis $30,$30,$16
-   addq $31,0x67,$0
-   call_pal callsys
-
-   Each instruction has a unique encoding, so we simply attempt to
-   match the instruction the pc is pointing to with any of the above
-   instructions.  If there is a hit, we know the offset to the start
-   of the designated sequence and can then check whether we really are
-   executing in a designated sequence.  If not, -1 is returned,
-   otherwise the offset from the start of the desingated sequence is
-   returned.
-
-   There is a slight chance of false hits: code could jump into the
-   middle of the designated sequence, in which case there is no
-   guarantee that we are in the middle of a sigreturn syscall.  Don't
-   think this will be a problem in praxis, though.
- */
-
-#ifndef TM_LINUXALPHA_H
-/* HACK: Provide a prototype when compiling this file for non
-   linuxalpha targets. */
-long alpha_linux_sigtramp_offset (CORE_ADDR pc);
-#endif
-long
-alpha_linux_sigtramp_offset (CORE_ADDR pc)
-{
-  unsigned int i[3], w;
-  long off;
-
-  if (read_memory_nobpt (pc, (char *) &w, 4) != 0)
-    return -1;
-
-  off = -1;
-  switch (w)
-    {
-    case 0x47de0410:
-      off = 0;
-      break;			/* bis $30,$30,$16 */
-    case 0x43ecf400:
-      off = 4;
-      break;			/* addq $31,0x67,$0 */
-    case 0x00000083:
-      off = 8;
-      break;			/* call_pal callsys */
-    default:
-      return -1;
-    }
-  pc -= off;
-  if (pc & 0x7)
-    {
-      /* designated sequence is not quadword aligned */
-      return -1;
-    }
-
-  if (read_memory_nobpt (pc, (char *) i, sizeof (i)) != 0)
-    return -1;
-
-  if (i[0] == 0x47de0410 && i[1] == 0x43ecf400 && i[2] == 0x00000083)
-    return off;
-
-  return -1;
-}
-
-
 /* Under OSF/1, the __sigtramp routine is frameless and has a frame
    size of zero, but we are able to backtrace through it.  */
 CORE_ADDR