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.
This adds 'Innovative Computing Labs' as an external author to
update-copyright.py, to cover the copyright notice in
gprofng/common/opteron_pcbe.c, and uses that plus another external
author 'Oracle and' to update gprofng copyright dates. I'm not going
to commit 'Oracle and' as an accepted author, but that covers the
string "Copyright (c) 2006, 2012, Oracle and/or its affiliates. All
rights reserved." found in gprofng/testsuite/gprofng.display/jsynprog
files.
