* Makefile.in (alphanbsd-tdep.o): Add $(frame_h) to dependency

list.
* alphanbsd-tdep.c (alphanbsd_sigcontext_addr)
(alphanbsd_skip_sigtramp_frame): New functions.
(alphanbsd_init_abi): Set tdep->skip_sigtramp_frame to
alphanbsd_skip_sigtramp_frame.  Set tdep->sigcontext_addr
to alphanbsd_sigcontext_addr.

1 files changed, 26 insertions, 0 deletions

diff --git a/gdb/alphanbsd-tdep.c b/gdb/alphanbsd-tdep.c
index a3a1f53..bc7b1a4 100644
--- a/gdb/alphanbsd-tdep.c
+++ b/gdb/alphanbsd-tdep.c
@@ -21,6 +21,7 @@
 
 #include "defs.h"
 #include "gdbcore.h"
+#include "frame.h"
 #include "regcache.h"
 #include "value.h"
 
@@ -182,6 +183,29 @@ alphanbsd_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
 	  || alphanbsd_sigtramp_offset (pc) >= 0);
 }
 
+static CORE_ADDR
+alphanbsd_sigcontext_addr (struct frame_info *frame)
+{
+  /* FIXME: This is not correct for all versions of NetBSD/alpha.
+     We will probably need to disassemble the trampoline to figure
+     out which trampoline frame type we have.  */
+  return frame->frame;
+}
+
+static CORE_ADDR
+alphanbsd_skip_sigtramp_frame (struct frame_info *frame, CORE_ADDR pc)
+{
+  char *name;
+
+  /* FIXME: This is not correct for all versions of NetBSD/alpha.
+     We will probably need to disassemble the trampoline to figure
+     out which trampoline frame type we have.  */
+  find_pc_partial_function (pc, &name, (CORE_ADDR *) NULL, (CORE_ADDR *) NULL);
+  if (PC_IN_SIGTRAMP (pc, name))
+    return frame->frame;
+  return 0;
+}
+
 static void
 alphanbsd_init_abi (struct gdbarch_info info,
                     struct gdbarch *gdbarch)
@@ -197,7 +221,9 @@ alphanbsd_init_abi (struct gdbarch_info info,
   set_solib_svr4_fetch_link_map_offsets (gdbarch,
                                  nbsd_lp64_solib_svr4_fetch_link_map_offsets);
 
+  tdep->skip_sigtramp_frame = alphanbsd_skip_sigtramp_frame;
   tdep->dynamic_sigtramp_offset = alphanbsd_sigtramp_offset;
+  tdep->sigcontext_addr = alphanbsd_sigcontext_addr;
 
   tdep->jb_pc = 2;
   tdep->jb_elt_size = 8;