libgcc/config/arc/gmon/machine-gmon.h

   1 /* Copyright (C) 2007-2012 Free Software Foundation, Inc.
   2    Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
   3                 on behalf of Synopsys Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 Under Section 7 of GPL version 3, you are granted additional
  18 permissions described in the GCC Runtime Library Exception, version
  19 3.1, as published by the Free Software Foundation.
  20
  21 You should have received a copy of the GNU General Public License and
  22 a copy of the GCC Runtime Library Exception along with this program;
  23 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26 #ifndef MACHINE_GMON_H
  27 #define MACHINE_GMON_H
  28
  29 /* We can't fake out own <sys/types.h> header because the newlib / uclibc
  30    headers in GCC_FOR_TARGET take precedence.  */
  31
  32 #define __BEGIN_DECLS
  33 #define __END_DECLS
  34
  35 #define __THROW
  36
  37 extern int __dcache_linesz (void);
  38
  39 #define _MCOUNT_DECL(countp, selfpc) \
  40   static inline void _mcount_internal (void *countp, u_long selfpc)
  41
  42 extern void _mcount (void);
  43 extern void _mcount_call (void);
  44
  45 /* N.B.: the calling point might be a sibcall, thus blink does not necessarily
  46   hold the caller's address.  r8 doesn't hold the caller's address, either,
  47   but rather a pointer to the counter data structure associated with the
  48   caller.
  49   This function must be compiled with optimization turned on in order to
  50   enable a sibcall for the final call to selfpc; this is important when trying
  51   to profile a program with deep tail-recursion that would get a stack
  52   overflow otherwise.  */
  53 #define MCOUNT \
  54 void \
  55 _mcount_call (void) \
  56 { \
  57   register void *countp __asm("r8"); \
  58   register u_long selfpc __asm("r9"); \
  59   _mcount_internal (countp, selfpc); \
  60   ((void (*)(void)) selfpc) (); \
  61 }
  62
  63 extern int __profil (u_short *,size_t, size_t, u_int);
  64
  65 #endif /* MACHINE_GMON_H */