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Vladimir Mezentsev 66f76c545b gprofng: 30089 [display text] Invalid number of threads
The real problem is that libcollector doesn't interpose thread_create@GLIBC_2.34
We interpose a lot of libC functions (dlopen, fork, pthread_create, etc.).
Some of these functions have versions. For example, dlopen@GLIBC_2.34,
dlopen@GLIBC_2.17, dlopen@GLIBC_2.2.5, etc.
We have to interpose each of the functions because we don't know
which version of libC will be used during profiling.
Historically, we have used three versions of scripts (mapfile.aarch64-Linux,
mapfile.amd64-Linux, mapfile.intel-Linux).
Three are not needed. One is enough

The fixes below include:
 - merged all version symbols into one version script.
 - added new version symbols which are defined in latest versions of libC.
 - removed unused defines and duplicated code.
 - added the DCL_FUNC_VER macro to define the version symbols.

Tested on x86_64 and aarch64 (OL8/OL9). No regression.

gprofng/ChangeLog
2023-03-23  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>

	PR gprofng/30089
	* libcollector/Makefile.am: Use libgprofng.ver instead of mapfile.*
	* libcollector/configure.ac: Delete GPROFNG_VARIANT.
	* src/collector_module.h: Move the SYMVER_ATTRIBUTE macro to collector.h
	* libcollector/collector.h: Add macros (SYMVER_ATTRIBUTE, DCL_FUNC_VER).
	Remove unused defines.
	* libcollector/dispatcher.c: Interpose functions from libC.
	Clean up the old code.
	* libcollector/iotrace.c: Likewise.
	* libcollector/libcol_util.c: Likewise.
	* libcollector/linetrace.c: Likewise.
	* libcollector/mmaptrace.c: Likewise.
	* libcollector/synctrace.c: Likewise.
	* libcollector/libgprofng.ver: New file.
	* libcollector/Makefile.in: Rebuild.
	* libcollector/configure: Rebuild.
	* libcollector/mapfile.aarch64-Linux: Removed.
	* libcollector/mapfile.amd64-Linux: Removed.
	* libcollector/mapfile.intel-Linux: Removed.
	* libcollector/mapfile.sparc-Linux: Removed.
	* libcollector/mapfile.sparcv9-Linux: Removed.
2023-03-27 11:47:52 -07:00

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dnl Process this file with autoconf to produce a configure script.
dnl
dnl Copyright (C) 2021-2023 Free Software Foundation, Inc.
dnl
dnl This file is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; see the file COPYING3. If not see
dnl <http://www.gnu.org/licenses/>.
m4_include([../../bfd/version.m4])
AC_INIT([gprofng], BFD_VERSION)
AC_CONFIG_MACRO_DIRS([../../config ../..])
AC_CONFIG_AUX_DIR(../..)
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE
AM_MAINTAINER_MODE
AC_CONFIG_SRCDIR(libcol_util.c)
AC_USE_SYSTEM_EXTENSIONS
AC_PROG_CC
AC_PROG_CXX
AC_PROG_INSTALL
AC_PROG_RANLIB
AM_PROG_AR
LT_INIT
AC_ENABLE_SHARED
AC_DISABLE_STATIC
if test "$enable_shared" != "yes"; then
AC_MSG_WARN([Cannot set --enable-shared for gprofng/libcollector. Profiling will be unavailable.])
fi
ACX_PROG_CC_WARNING_OPTS([-Wno-nonnull-compare], [GPROFNG_NO_NONNULL_COMPARE_CFLAGS])
AC_SUBST(GPROFNG_NO_NONNULL_COMPARE_CFLAGS)
AC_CONFIG_FILES([Makefile])
AC_CONFIG_HEADERS([lib-config.h:../common/lib-config.h.in])
AC_OUTPUT