Vladimir Mezentsev 35fab451d9 gprofng: 30360 Seg. Fault when application uses std::thread ... We interpose a lot of libC functions (dlopen, fork, pthread_create, etc.). Some of these functions have versions. For example, % nm -D /lib64/gprofng/libgp-collector.so | grep thread_create@ | sort 000000000004b420 T pthread_create@GLIBC_2.34 000000000004b490 T pthread_create@GLIBC_2.17 000000000004b500 T pthread_create@GLIBC_2.2.5 000000000004b570 T pthread_create@GLIBC_2.1 000000000004b5e0 T pthread_create@GLIBC_2.0 Our library does not set the default version for symbols. This is correct because we don't know which libC will be used. gcc and g++ links differently the version symbols when the default version is not set. c-linker is using our pthread_create@GLIBC_2.34 and c++-linker is using our pthread_create@GLIBC_2.0 by default. The current implementation of the interposed functions is: If we are in our pthread_create@GLIBC_<NN>, we use dlvsym (dlflag, "pthread_create", "GLIBC_<NN>") to find and call the same function from libC. In the test from PR 30360, pthread_create@GLIBC_2.0 is not in the current libC. We need to call the default version symbol from libC. gprofng/ChangeLog 2023-04-16 Vladimir Mezentsev <vladimir.mezentsev@oracle.com> PR gprofng/30360 * libcollector/iotrace.c: Find and call a default libC version symbol. * libcollector/dispatcher.c: Likewise. * libcollector/iotrace.c: Likewise. * libcollector/linetrace.c: Likewise. * libcollector/mmaptrace.c: Likewise. * libcollector/synctrace.c: Likewise. * libcollector/collector.h (REAL_DCL): Remove an unused argument.		2023-04-17 13:01:38 -07:00
..
aclocal.m4
CHK_LIBC_OBJ
collector.c	gprofng: Use prototype to call libc functions	2023-03-19 18:03:58 -07:00
collector.h	gprofng: 30360 Seg. Fault when application uses std::thread	2023-04-17 13:01:38 -07:00
collectorAPI.c
configure	gprofng: 30089 [display text] Invalid number of threads	2023-03-27 11:47:52 -07:00
configure.ac	gprofng: 30089 [display text] Invalid number of threads	2023-03-27 11:47:52 -07:00
descendants.h
dispatcher.c	gprofng: 30360 Seg. Fault when application uses std::thread	2023-04-17 13:01:38 -07:00
envmgmt.c
gethrtime.c
heaptrace.c	gprofng: Use prototype to call libc functions	2023-03-19 18:03:58 -07:00
hwprofile.c
hwprofile.h
iolib.c
iotrace.c	gprofng: 30360 Seg. Fault when application uses std::thread	2023-04-17 13:01:38 -07:00
jprofile.c
libcol_hwcdrv.c
libcol_hwcfuncs.c
libcol_util.c	gprofng: 30089 [display text] Invalid number of threads	2023-03-27 11:47:52 -07:00
libcol_util.h
libcol-i386-dis.c
libgprofng.ver	gprofng: Add version symbols to libgprofng.ver	2023-03-29 23:09:40 -07:00
linetrace.c	gprofng: 30360 Seg. Fault when application uses std::thread	2023-04-17 13:01:38 -07:00
Makefile.am	gprofng: 30089 [display text] Invalid number of threads	2023-03-27 11:47:52 -07:00
Makefile.in	gprofng: 30089 [display text] Invalid number of threads	2023-03-27 11:47:52 -07:00
memmgr.c
memmgr.h
mmaptrace.c	gprofng: 30360 Seg. Fault when application uses std::thread	2023-04-17 13:01:38 -07:00
profile.c
synctrace.c	gprofng: 30360 Seg. Fault when application uses std::thread	2023-04-17 13:01:38 -07:00
tsd.c
tsd.h
unwind.c