sysdeps/arc/machine-gmon.h

   1 /* Machine-dependent definitions for profiling support.  ARC version.
   2    Copyright (C) 2020-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <sysdep.h>
  20
  21 #define _MCOUNT_DECL(frompc, selfpc)                                    \
  22 static void                                                             \
  23 __mcount_internal (unsigned long int frompc, unsigned long int selfpc)
  24
  25 /* This is very simple as gcc does all the heavy lifting at _mcount call site
  26     - sets up caller's blink in r0, so frompc is setup correctly
  27     - preserve argument registers for original call.  */
  28
  29 #define MCOUNT                                                          \
  30 void                                                                    \
  31 _mcount (void *frompc)                                                  \
  32 {                                                                       \
  33   __mcount_internal ((unsigned long int) frompc,                        \
  34                      (unsigned long int) __builtin_return_address (0)); \
  35 }