/* Assembler macros for m68k.

   Copyright (C) 1998-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library.  If not, see

   <http://www.gnu.org/licenses/>.  */

#include <sysdeps/generic/sysdep.h>

#ifdef __ASSEMBLER__

/* Define an entry point visible from C.

   There is currently a bug in gdb which prevents us from specifying

   incomplete stabs information.  Fake some entries here which specify

   the current source file.  */

# define ENTRY(name)							      \

  .globl C_SYMBOL_NAME(name);						      \

  .type C_SYMBOL_NAME(name),@function;					      \

  .p2align 2;								      \

  C_LABEL(name)								      \

  cfi_startproc;							      \

  CALL_MCOUNT

# undef END

# define END(name)							      \

  cfi_endproc;								      \

  .size name,.-name

/* If compiled for profiling, call `_mcount' at the start of each function.  */

# ifdef	PROF

/* The mcount code relies on a normal frame pointer being on the stack

   to locate our caller, so push one just for its benefit.  */

#  define CALL_MCOUNT \

  move.l %fp, -(%sp);							      \

  cfi_adjust_cfa_offset (4);  cfi_rel_offset (%a6, 0);			      \

  move.l %sp, %fp;							      \

  jbsr JUMPTARGET (_mcount);						      \

  move.l (%sp)+, %fp;							      \

  cfi_adjust_cfa_offset (-4); cfi_restore (%a6);

# else

#  define CALL_MCOUNT		/* Do nothing.  */

# endif

# define PSEUDO(name, syscall_name, args)				      \

  .globl __syscall_error;						      \

  ENTRY (name)								      \

    DO_CALL (syscall_name, args);					      \

    jcc JUMPTARGET(__syscall_error)

# undef PSEUDO_END

# define PSEUDO_END(name)						      \

  END (name)

# undef JUMPTARGET

# ifdef PIC

#  define JUMPTARGET(name)	name##@PLTPC

# else

#  define JUMPTARGET(name)	name

# endif

#endif	/* __ASSEMBLER__ */