* Makefile.in (ALLDEPFILES): Add alpha-osf1-tdep.c.

(alpha-osf1-tdep.o): New dependency list.
* alpha-tdep.h (gdbarch_tdep): Add dynamic_sigtramp_offset
and skip_sigtramp_frame members.
* alpha-linux-tdep.c: Include gdbcore.h.
(alpha_linux_sigtramp_offset): Change return type to LONGEST.
(alpha_linux_init_abi): Initialize tdep->dynamic_sigtramp_offset.
* alpha-osf1-tdep.c: New file.
* alpha-tdep.c (alpha_osf_skip_sigtramp_frame): Moved to
alpha-osf1-dep.c.
(alpha_frame_past_sigtramp_frame): New function.
(alpha_dynamic_sigtramp_offset): Ditto.
(alpha_proc_desc_is_dyn_sigtramp): Ditto.
(alpha_set_proc_desc_is_dyn_sigtramp): Ditto.
(ALPHA_PROC_SIGTRAMP_MAGIC): Define.
(push_sigtramp_desc): Use alpha_set_proc_desc_is_dyn_sigtramp.
(after_prologue): Use alpha_proc_desc_is_dyn_sigtramp.
(find_proc_desc): Use alpha_dynamic_sigtramp_offset.
(alpha_frame_chain): Use alpha_frame_past_sigtramp_frame.
(alpha_init_extra_frame_info): Use alpha_proc_desc_is_dyn_sigtramp.
(alpha_pop_frame): Use alpha_proc_desc_is_dyn_sigtramp.
(alpha_gdbarch_init): Initialize tdep->dynamic_sigtramp_offset
and tdep->skip_sigtramp_frame.  Set gdbarch_skip_trampoline_code
to find_solib_trampoline_target.
* config/alpha/alpha-osf1.mt (TDEPFILES): Add alpha-osf1-tdep.o.
* config/alpha/tm-alpha.h: Remove inclusion of regcache.h.
(SKIP_TRAMPOLINE_CODE): Remove.
(PROC_DESC_IS_DYN_SIGTRAMP): Ditto.
(SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto.
(DYNAMIC_SIGTRAMP_OFFSET): Ditto.
(FRAME_PAST_SIGTRAMP_FRAME): Ditto.
* config/alpha/tm-alphalinux.h (PROC_DESC_IS_DYN_SIGTRAMP): Remove.
(PROC_SIGTRAMP_MAGIC): Ditto.
(PROC_DESC_IS_DYN_SIGTRAMP): Ditto.
(SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto.
(SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto.
(DYNAMIC_SIGTRAMP_OFFSET): Ditto.
(FRAME_PAST_SIGTRAMP_FRAME): Ditto.

3 files changed, 5 insertions, 64 deletions

diff --git a/gdb/config/alpha/alpha-osf1.mt b/gdb/config/alpha/alpha-osf1.mt
index 98f87c1..29212c9 100644
--- a/gdb/config/alpha/alpha-osf1.mt
+++ b/gdb/config/alpha/alpha-osf1.mt
@@ -1,3 +1,3 @@
 # Target: Little-endian Alpha
-TDEPFILES= alpha-tdep.o
+TDEPFILES= alpha-tdep.o alpha-osf1-tdep.o
 TM_FILE= tm-alpha.h
diff --git a/gdb/config/alpha/tm-alpha.h b/gdb/config/alpha/tm-alpha.h
index bfc2a6e..61d9561 100644
--- a/gdb/config/alpha/tm-alpha.h
+++ b/gdb/config/alpha/tm-alpha.h
@@ -26,7 +26,6 @@
 
 #define GDB_MULTI_ARCH GDB_MULTI_ARCH_PARTIAL
 
-#include "regcache.h"
 #include "bfd.h"
 #include "coff/sym.h"		/* Needed for PDR below.  */
 #include "coff/symconst.h"
@@ -36,10 +35,9 @@ struct type;
 struct value;
 struct symbol;
 
-/* Number of traps that happen between exec'ing the shell 
- * to run an inferior, and when we finally get to 
- * the inferior code.  This is 2 on most implementations.
- */
+/* Number of traps that happen between exec'ing the shell
+   to run an inferior, and when we finally get to
+   the inferior code.  This is 2 on most implementations.  */
 #define START_INFERIOR_TRAPS_EXPECTED 3
 
 /* Offset from address of function to start of its code.
@@ -99,40 +97,10 @@ extern void alpha_print_extra_frame_info (struct frame_info *);
   alpha_setup_arbitrary_frame (argc, argv)
 extern struct frame_info *alpha_setup_arbitrary_frame (int, CORE_ADDR *);
 
-/* If PC is in a shared library trampoline code, return the PC
-   where the function itself actually starts.  If not, return 0.  */
-#define SKIP_TRAMPOLINE_CODE(pc)  find_solib_trampoline_target (pc)
-
-/* Return TRUE if procedure descriptor PROC is a procedure descriptor
-   that refers to a dynamically generated sigtramp function.
-
-   OSF/1 doesn't use dynamic sigtramp functions, so this is always
-   FALSE.  */
-
-#define PROC_DESC_IS_DYN_SIGTRAMP(proc)	(0)
-#define SET_PROC_DESC_IS_DYN_SIGTRAMP(proc)
-
-/* If PC is inside a dynamically generated sigtramp function, return
-   how many bytes the program counter is beyond the start of that
-   function.  Otherwise, return a negative value.
-
-   OSF/1 doesn't use dynamic sigtramp functions, so this always
-   returns -1.  */
-
-#define DYNAMIC_SIGTRAMP_OFFSET(pc)	(-1)
-
 /* Translate a signal handler frame into the address of the sigcontext
    structure.  */
 
 #define SIGCONTEXT_ADDR(frame) \
   (read_memory_integer ((frame)->next ? frame->next->frame : frame->frame, 8))
 
-/* If FRAME refers to a sigtramp frame, return the address of the next
-   frame.  */
-
-#define FRAME_PAST_SIGTRAMP_FRAME(frame, pc) \
-  (alpha_osf_skip_sigtramp_frame (frame, pc))
-extern CORE_ADDR alpha_osf_skip_sigtramp_frame (struct frame_info *,
-						CORE_ADDR);
-
 #endif /* TM_ALPHA_H */
diff --git a/gdb/config/alpha/tm-alphalinux.h b/gdb/config/alpha/tm-alphalinux.h
index 23592aa..0235758 100644
--- a/gdb/config/alpha/tm-alphalinux.h
+++ b/gdb/config/alpha/tm-alphalinux.h
@@ -29,7 +29,7 @@
 
 /* Are we currently handling a signal ?  */
 
-extern long alpha_linux_sigtramp_offset (CORE_ADDR);
+extern LONGEST alpha_linux_sigtramp_offset (CORE_ADDR);
 #undef IN_SIGTRAMP
 #define IN_SIGTRAMP(pc, name)	(alpha_linux_sigtramp_offset (pc) >= 0)
 
@@ -42,42 +42,15 @@ extern long alpha_linux_sigtramp_offset (CORE_ADDR);
 /* Number of traps that happen between exec'ing the shell to run an
    inferior, and when we finally get to the inferior code.  This is 2
    on GNU/Linux and most implementations.  */
-
 #undef START_INFERIOR_TRAPS_EXPECTED
 #define START_INFERIOR_TRAPS_EXPECTED 2
 
-/* Return TRUE if procedure descriptor PROC is a procedure descriptor
-   that refers to a dynamically generated sigtramp function.  */
-
-#undef PROC_DESC_IS_DYN_SIGTRAMP
-#define PROC_SIGTRAMP_MAGIC	0x0e0f0f0f
-#define PROC_DESC_IS_DYN_SIGTRAMP(proc) ((proc)->pdr.isym		\
-					 == PROC_SIGTRAMP_MAGIC)
-#undef SET_PROC_DESC_IS_DYN_SIGTRAMP
-#define SET_PROC_DESC_IS_DYN_SIGTRAMP(proc) ((proc)->pdr.isym		\
-					     = PROC_SIGTRAMP_MAGIC)
-
-/* If PC is inside a dynamically generated sigtramp function, return
-   how many bytes the program counter is beyond the start of that
-   function.  Otherwise, return a negative value.  */
-
-#undef DYNAMIC_SIGTRAMP_OFFSET
-#define DYNAMIC_SIGTRAMP_OFFSET(pc)	(alpha_linux_sigtramp_offset (pc))
-
 /* Translate a signal handler frame into the address of the sigcontext
    structure.  */
 
 #undef SIGCONTEXT_ADDR
 #define SIGCONTEXT_ADDR(frame)			((frame)->frame - 0x298)
 
-/* If FRAME refers to a sigtramp frame, return the address of the next frame.
-
-   Under GNU/Linux, sigtramp handlers have dynamically generated
-   procedure descriptors that make this hack unnecessary.  */
-
-#undef FRAME_PAST_SIGTRAMP_FRAME
-#define FRAME_PAST_SIGTRAMP_FRAME(frame, pc)	(0)
-
 #include "tm-linux.h"
 
 #endif /* TM_LINUXALPHA_H */