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/* Copyright (C) 2021 Free Software Foundation, Inc.
Contributed by Oracle.
This file is part of GNU Binutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
/* C and Fortran stubs for collector API */
#include "config.h"
#include <dlfcn.h>
#include "gp-defs.h"
#include "collectorAPI.h"
#include "gp-experiment.h"
static void *__real_collector_sample = NULL;
static void *__real_collector_pause = NULL;
static void *__real_collector_resume = NULL;
static void *__real_collector_terminate_expt = NULL;
static void *__real_collector_func_load = NULL;
static void *__real_collector_func_unload = NULL;
#define INIT_API if (init_API == 0) collectorAPI_initAPI()
#define NULL_PTR(x) (__real_##x == NULL)
#define CALL_REAL(x) (*(void(*)())__real_##x)
#define CALL_IF_REAL(x) INIT_API; if (!NULL_PTR(x)) CALL_REAL(x)
static int init_API = 0;
void
collectorAPI_initAPI (void)
{
void *libcollector = dlopen (SP_LIBCOLLECTOR_NAME, RTLD_NOLOAD);
if (libcollector == NULL)
libcollector = RTLD_DEFAULT;
__real_collector_sample = dlsym (libcollector, "__collector_sample");
__real_collector_pause = dlsym (libcollector, "__collector_pause");
__real_collector_resume = dlsym (libcollector, "__collector_resume");
__real_collector_terminate_expt = dlsym (libcollector, "__collector_terminate_expt");
__real_collector_func_load = dlsym (libcollector, "__collector_func_load");
__real_collector_func_unload = dlsym (libcollector, "__collector_func_unload");
init_API = 1;
}
/* initialization -- init section routine */
static void collectorAPI_init () __attribute__ ((constructor));
static void
collectorAPI_init (void)
{
collectorAPI_initAPI ();
}
/* C API */
void
collector_pause (void)
{
CALL_IF_REAL (collector_pause)();
}
void
collector_resume (void)
{
CALL_IF_REAL (collector_resume)();
}
void
collector_sample (const char *name)
{
CALL_IF_REAL (collector_sample)(name);
}
void
collector_terminate_expt (void)
{
CALL_IF_REAL (collector_terminate_expt)();
}
void
collector_func_load (const char *name, const char *alias, const char *sourcename,
void *vaddr, int size, int lntsize, Lineno *lntable)
{
CALL_IF_REAL (collector_func_load)(name, alias, sourcename,
vaddr, size, lntsize, lntable);
}
void
collector_func_unload (void *vaddr)
{
CALL_IF_REAL (collector_func_unload)(vaddr);
}
/* Fortran API */
void
collector_pause_ (void)
{
CALL_IF_REAL (collector_pause)();
}
void
collector_resume_ (void)
{
CALL_IF_REAL (collector_resume)();
}
void
collector_terminate_expt_ (void)
{
CALL_IF_REAL (collector_terminate_expt)();
}
void
collector_sample_ (char *name, long name_length)
{
INIT_API;
if (!NULL_PTR (collector_sample))
{
char name_string[256];
long length = sizeof (name_string) - 1;
if (name_length < length)
length = name_length;
for (long i = 0; i < length; i++)
name_string[i] = name[i];
name_string[length] = '\0';
CALL_REAL (collector_sample)(name_string);
}
}
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