2003-01-15 David Carlton <carlton@math.stanford.edu>

[deliverable/binutils-gdb.git] / gdb / alpha-linux-tdep.c

diff --git a/gdb/alpha-linux-tdep.c b/gdb/alpha-linux-tdep.c
index cb4e9c7ee7915b389c516b24254ae724f4b64dd1..c5d7481fbf95ef042297031d96dd5cd030e307c1 100644 (file)
--- a/gdb/alpha-linux-tdep.c
+++ b/gdb/alpha-linux-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for GNU/Linux on Alpha.
-   Copyright 2002 Free Software Foundation, Inc.
+   Copyright 2002, 2003 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -19,7 +19,10 @@
    Boston, MA 02111-1307, USA.  */
 
 #include "defs.h"
+#include "frame.h"
+#include "gdbcore.h"
 #include "value.h"
+#include "osabi.h"
 
 #include "alpha-tdep.h"
 
@@ -45,7 +48,7 @@
    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.  */
-long
+LONGEST
 alpha_linux_sigtramp_offset (CORE_ADDR pc)
 {
   unsigned int i[3], w;
@@ -84,15 +87,36 @@ alpha_linux_sigtramp_offset (CORE_ADDR pc)
   return -1;
 }
 
+static int
+alpha_linux_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
+{
+  return (alpha_linux_sigtramp_offset (pc) >= 0);
+}
+
+static CORE_ADDR
+alpha_linux_sigcontext_addr (struct frame_info *frame)
+{
+  return (get_frame_base (frame) - 0x298); /* sizeof(struct sigcontext) */
+}
+
 static void
 alpha_linux_init_abi (struct gdbarch_info info,
                       struct gdbarch *gdbarch)
 {
-  /* Place holder. */
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+  set_gdbarch_pc_in_sigtramp (gdbarch, alpha_linux_pc_in_sigtramp);
+
+  tdep->dynamic_sigtramp_offset = alpha_linux_sigtramp_offset;
+  tdep->sigcontext_addr = alpha_linux_sigcontext_addr;
+
+  tdep->jb_pc = 2;
+  tdep->jb_elt_size = 8;
 }
 
 void
 _initialize_alpha_linux_tdep (void)
 {
-  alpha_gdbarch_register_os_abi (ALPHA_ABI_LINUX, alpha_linux_init_abi);
+  gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_LINUX,
+                          alpha_linux_init_abi);
 }