* m68klinux-nat.c (IS_SIGTRAMP, IS_RT_SIGTRAMP)

	(m68k_linux_in_sigtramp, SIGCONTEXT_PC_OFFSET)
	(UCONTEXT_PC_OFFSET, m68k_linux_sigtramp_saved_pc)
	(m68k_linux_frame_saved_pc): Move to ...
	* m68klinux-tdep.c: ... here.  New file.
	* Makefile.in (m68klinux-tdep.o): Add dependencies.
	* config/m68k/linux.mt (TDEPFILES): Add m68klinux-tdep.o.

1 files changed, 0 insertions, 97 deletions

diff --git a/gdb/m68klinux-nat.c b/gdb/m68klinux-nat.c
index b2d3a6f..b206852 100644
--- a/gdb/m68klinux-nat.c
+++ b/gdb/m68klinux-nat.c
@@ -594,103 +594,6 @@ kernel_u_size (void)
   return (sizeof (struct user));
 }
 
-/* Check whether insn1 and insn2 are parts of a signal trampoline.  */
-
-#define IS_SIGTRAMP(insn1, insn2)					\
-  (/* addaw #20,sp; moveq #119,d0; trap #0 */				\
-   (insn1 == 0xdefc0014 && insn2 == 0x70774e40)				\
-   /* moveq #119,d0; trap #0 */						\
-   || insn1 == 0x70774e40)
-
-#define IS_RT_SIGTRAMP(insn1, insn2)					\
-  (/* movel #173,d0; trap #0 */						\
-   (insn1 == 0x203c0000 && insn2 == 0x00ad4e40)				\
-   /* moveq #82,d0; notb d0; trap #0 */					\
-   || (insn1 == 0x70524600 && (insn2 >> 16) == 0x4e40))
-
-/* Return non-zero if PC points into the signal trampoline.  For the sake
-   of m68k_linux_frame_saved_pc we also distinguish between non-RT and RT
-   signal trampolines.  */
-
-int
-m68k_linux_in_sigtramp (CORE_ADDR pc)
-{
-  CORE_ADDR sp;
-  char buf[12];
-  unsigned long insn0, insn1, insn2;
-
-  if (read_memory_nobpt (pc - 4, buf, sizeof (buf)))
-    return 0;
-  insn1 = extract_unsigned_integer (buf + 4, 4);
-  insn2 = extract_unsigned_integer (buf + 8, 4);
-  if (IS_SIGTRAMP (insn1, insn2))
-    return 1;
-  if (IS_RT_SIGTRAMP (insn1, insn2))
-    return 2;
-
-  insn0 = extract_unsigned_integer (buf, 4);
-  if (IS_SIGTRAMP (insn0, insn1))
-    return 1;
-  if (IS_RT_SIGTRAMP (insn0, insn1))
-    return 2;
-
-  insn0 = (insn0 << 16) | (insn1 >> 16);
-  insn1 = (insn1 << 16) | (insn2 >> 16);
-  if (IS_SIGTRAMP (insn0, insn1))
-    return 1;
-  if (IS_RT_SIGTRAMP (insn0, insn1))
-    return 2;
-
-  return 0;
-}
-
-/* Offset to saved PC in sigcontext, from <asm/sigcontext.h>.  */
-#define SIGCONTEXT_PC_OFFSET 26
-
-/* Offset to saved PC in ucontext, from <asm/ucontext.h>.  */
-#define UCONTEXT_PC_OFFSET 88
-
-/* Get saved user PC for sigtramp from sigcontext or ucontext.  */
-
-static CORE_ADDR
-m68k_linux_sigtramp_saved_pc (struct frame_info *frame)
-{
-  CORE_ADDR sigcontext_addr;
-  char buf[TARGET_PTR_BIT / TARGET_CHAR_BIT];
-  int ptrbytes = TARGET_PTR_BIT / TARGET_CHAR_BIT;
-  int sigcontext_offs = (2 * TARGET_INT_BIT) / TARGET_CHAR_BIT;
-
-  /* Get sigcontext address, it is the third parameter on the stack.  */
-  if (frame->next)
-    sigcontext_addr = read_memory_integer (FRAME_ARGS_ADDRESS (frame->next)
-					   + FRAME_ARGS_SKIP
-					   + sigcontext_offs,
-					   ptrbytes);
-  else
-    sigcontext_addr = read_memory_integer (read_register (SP_REGNUM)
-					   + sigcontext_offs,
-					   ptrbytes);
-
-  /* Don't cause a memory_error when accessing sigcontext in case the
-     stack layout has changed or the stack is corrupt.  */
-  if (m68k_linux_in_sigtramp (frame->pc) == 2)
-    target_read_memory (sigcontext_addr + UCONTEXT_PC_OFFSET, buf, ptrbytes);
-  else
-    target_read_memory (sigcontext_addr + SIGCONTEXT_PC_OFFSET, buf, ptrbytes);
-  return extract_unsigned_integer (buf, ptrbytes);
-}
-
-/* Return the saved program counter for FRAME.  */
-
-CORE_ADDR
-m68k_linux_frame_saved_pc (struct frame_info *frame)
-{
-  if ((get_frame_type (frame) == SIGTRAMP_FRAME))
-    return m68k_linux_sigtramp_saved_pc (frame);
-
-  return read_memory_integer (frame->frame + 4, 4);
-}
-
 /* Register that we are able to handle GNU/Linux ELF core file
    formats.  */