include/libcollector.h

   1 /* Copyright (C) 2021-2023 Free Software Foundation, Inc.
   2    Contributed by Oracle.
   3
   4    This file is part of GNU Binutils.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 #ifndef _LIBCOLLECTOR_H
  22 #define _LIBCOLLECTOR_H
  23
  24 typedef struct
  25 {
  26   unsigned int offset;
  27   unsigned int lineno;
  28 } Lineno;
  29
  30 #ifdef __cplusplus
  31 extern "C"
  32 {
  33 #endif
  34
  35   /* This file contains function prototypes for the user-callable API
  36      routines in libcollector for C and C++ codes.  */
  37
  38   /* Routine to record a sample in the experiment.  */
  39   void collector_sample (char *name);
  40
  41   /* Routine to suspend data collection during an experiment.  */
  42   void collector_pause (void);
  43
  44   /* Routine to resume data collection during an experiment.  */
  45   void collector_resume (void);
  46
  47   /* Routine to suspend per-thread data collection during an experiment.  */
  48   void collector_thread_pause (unsigned int tid);
  49
  50   /* Routine to resume per-thread data collection during an experiment.  */
  51   void collector_thread_resume (unsigned int tid);
  52
  53   /* Routine to close the experiment, and stop all data collection.  */
  54   void collector_terminate_expt (void);
  55
  56   /* Routines to let libcollector know about a dynamically loaded function.  */
  57   void collector_func_load (char *name, char *alias, char *sourcename,
  58                           void *vaddr, int size, int lntsize, Lineno *lntable);
  59   void collector_func_unload (void *vaddr);
  60
  61   /* Define the weak symbols for the API.  */
  62   void collector_sample () __attribute__ ((weak));
  63   void collector_pause () __attribute__ ((weak));
  64   void collector_resume () __attribute__ ((weak));
  65   void collector_thread_pause () __attribute__ ((weak));
  66   void collector_thread_resume () __attribute__ ((weak));
  67   void collector_terminate_expt () __attribute__ ((weak));
  68   void collector_func_load () __attribute__ ((weak));
  69   void collector_func_unload () __attribute__ ((weak));
  70
  71 #ifdef __cplusplus
  72 }
  73 #endif
  74
  75 /* Define the macros that actually get inserted in the caller's code.  */
  76 #define collector_sample(x)     (collector_sample ? collector_sample(x), 0 : 0)
  77 #define collector_pause()       (collector_pause ? collector_pause(), 0 : 0)
  78 #define collector_resume()      (collector_resume ? collector_resume(),0 : 0
  79 #define collector_thread_pause(tid) \
  80         (collector_thread_pause ? collector_thread_pause(tid), 0 : 0)
  81 #define collector_thread_resume(tid) \
  82         (collector_thread_resume ? collector_thread_resume(tid), 0 : 0)
  83 #define collector_terminate_expt() \
  84         (collector_terminate_expt ? collector_terminate_expt(), 0 : 0)
  85 #define collector_func_load(x0,x1,x2,x3,x4,x5,x6) \
  86         collector_func_load ? collector_func_load(x0,x1,x2,x3,x4,x5,x6), 0 : 0)
  87 #define collector_func_unload(x) \
  88         (collector_func_unload ? collector_func_unload(x), 0 : 0)
  89 #endif /* _LIBCOLLECTOR_H */