Adds two new external authors to etc/update-copyright.py to cover
bfd/ax_tls.m4, and adds gprofng to dirs handled automatically, then
updates copyright messages as follows:
1) Update cgen/utils.scm emitted copyrights.
2) Run "etc/update-copyright.py --this-year" with an extra external
author I haven't committed, 'Kalray SA.', to cover gas testsuite
files (which should have their copyright message removed).
3) Build with --enable-maintainer-mode --enable-cgen-maint=yes.
4) Check out */po/*.pot which we don't update frequently.
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.
