gprofng: a new GNU profiler

top-level
	* Makefile.def: Add gprofng module.
	* configure.ac: Add --enable-gprofng option.
	* src-release.sh: Add gprofng.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* gprofng: New directory.

binutils
	* MAINTAINERS: Add gprofng maintainer.
	* README-how-to-make-a-release: Add gprofng.

include.
	* collectorAPI.h: New file.
	* libcollector.h: New file.
	* libfcollector.h: New file.

4 files changed, 210 insertions, 0 deletions

diff --git a/include/ChangeLog b/include/ChangeLog
index 416fb6b..6cda7e6 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,9 @@
+2022-03-11  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>
+
+	* collectorAPI.h: New file.
+	* libcollector.h: New file.
+	* libfcollector.h: New file.
+
 2022-01-25  Klaus Ziegler  <klausz@haus-gisela.de>
 
 	PR 28816
diff --git a/include/collectorAPI.h b/include/collectorAPI.h
new file mode 100644
index 0000000..df0d0cd
--- /dev/null
+++ b/include/collectorAPI.h
@@ -0,0 +1,73 @@
+/* Copyright (C) 2021-2022 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.  */
+
+#ifndef _COLLECTORAPI_H
+#define _COLLECTORAPI_H
+
+/* This file contains function prototypes for the user-callable API
+   routines in libcollector.  */
+
+#include <pthread.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+  /* Routine to record a sample in the experiment.  */
+  extern void collector_sample (const char *name);
+
+  /* Routine to suspend data collection during an experiment.  */
+  extern void collector_pause (void);
+
+  /* Routine to resume data collection during an experiment.  */
+  extern void collector_resume (void);
+
+  /* Routine to suspend per-thread data collection during an experiment.  */
+  extern void collector_thread_pause (pthread_t tid);
+
+  /* Routine to resume per-thread data collection during an experiment.  */
+  extern void collector_thread_resume (pthread_t tid);
+
+  /* Routine to close the experiment, and stop all data collection.  */
+  extern void  collector_terminate_expt (void);
+
+  typedef struct
+  {
+    unsigned int offset;
+    unsigned int lineno;
+  } Lineno;
+
+  /* Routines to let libcollector know about dynamically loaded functions.  */
+  extern void collector_func_load (const char *name, const char *alias,
+				   const char *sourcename, void *vaddr,
+				   int size, int lntsize, Lineno *lntable);
+
+  extern void collector_func_unload (void *vaddr);
+
+#ifdef NEED_COLLECTOR_MODULE
+  extern void collector_module_load (const char *modulename, void *vaddr);
+  extern void collector_module_unload (void *vaddr);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _COLLECTORAPI_H */
diff --git a/include/libcollector.h b/include/libcollector.h
new file mode 100644
index 0000000..5627cfd
--- /dev/null
+++ b/include/libcollector.h
@@ -0,0 +1,89 @@
+/* Copyright (C) 2021-2022 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.  */
+
+#ifndef _LIBCOLLECTOR_H
+#define _LIBCOLLECTOR_H
+
+typedef struct
+{
+  unsigned int offset;
+  unsigned int lineno;
+} Lineno;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+  /* This file contains function prototypes for the user-callable API
+     routines in libcollector for C and C++ codes.  */
+
+  /* Routine to record a sample in the experiment.  */
+  void collector_sample (char *name);
+
+  /* Routine to suspend data collection during an experiment.  */
+  void collector_pause (void);
+
+  /* Routine to resume data collection during an experiment.  */
+  void collector_resume (void);
+
+  /* Routine to suspend per-thread data collection during an experiment.  */
+  void collector_thread_pause (unsigned int tid);
+
+  /* Routine to resume per-thread data collection during an experiment.  */
+  void collector_thread_resume (unsigned int tid);
+
+  /* Routine to close the experiment, and stop all data collection.  */
+  void collector_terminate_expt (void);
+
+  /* Routines to let libcollector know about a dynamically loaded function.  */
+  void collector_func_load (char *name, char *alias, char *sourcename,
+			  void *vaddr, int size, int lntsize, Lineno *lntable);
+  void collector_func_unload (void *vaddr);
+
+  /* Define the weak symbols for the API.  */
+  void collector_sample () __attribute__ ((weak));
+  void collector_pause () __attribute__ ((weak));
+  void collector_resume () __attribute__ ((weak));
+  void collector_thread_pause () __attribute__ ((weak));
+  void collector_thread_resume () __attribute__ ((weak));
+  void collector_terminate_expt () __attribute__ ((weak));
+  void collector_func_load () __attribute__ ((weak));
+  void collector_func_unload () __attribute__ ((weak));
+
+#ifdef __cplusplus
+}
+#endif
+
+/* Define the macros that actually get inserted in the caller's code.  */
+#define collector_sample(x)	(collector_sample ? collector_sample(x), 0 : 0)
+#define collector_pause()	(collector_pause ? collector_pause(), 0 : 0)
+#define collector_resume()	(collector_resume ? collector_resume(),0 : 0 
+#define collector_thread_pause(tid) \
+	(collector_thread_pause ? collector_thread_pause(tid), 0 : 0)
+#define collector_thread_resume(tid) \
+	(collector_thread_resume ? collector_thread_resume(tid), 0 : 0)
+#define collector_terminate_expt() \
+	(collector_terminate_expt ? collector_terminate_expt(), 0 : 0)
+#define collector_func_load(x0,x1,x2,x3,x4,x5,x6) \
+	collector_func_load ? collector_func_load(x0,x1,x2,x3,x4,x5,x6), 0 : 0)
+#define collector_func_unload(x) \
+	(collector_func_unload ? collector_func_unload(x), 0 : 0)
+#endif /* _LIBCOLLECTOR_H */
diff --git a/include/libfcollector.h b/include/libfcollector.h
new file mode 100644
index 0000000..c9a840a
--- /dev/null
+++ b/include/libfcollector.h
@@ -0,0 +1,42 @@
+! Copyright (C) 2021-2022 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.
+!
+! Developer Sampling Collector interface include file
+
+        interface
+
+        ! Routine to record a sample in the experiment.
+        subroutine collector_sample(name)
+        character(len=*), intent(in) :: name
+        end subroutine
+
+        ! Routine to suspend data collection during an experiment.
+        subroutine collector_pause()
+        end subroutine
+
+        ! Routine to resume data collection during an experiment.
+        subroutine collector_resume()
+        end subroutine
+
+        ! Routine to stop all data collection and close the experiment.
+        subroutine collector_terminate_expt()
+        end subroutine
+
+        end interface