glibc/nptl_db/Makefile
Paul E. Murphy aa13fd1618 nptl_db: disable DT_RELR on libthread_db.so
Some nptl tests inadvertently use the host's gdb to verify
libthread_db.so, which is loaded with the host's runtime.  This causes
a couple of test failures when the host glibc does not support DT_RELR.

The not correct, but simple, workaround is to build without DT_RELR
as this library is otherwise likely to load on glibc 2.17 and newer
today.

This allows tst-pthread-gdb-attach{,-static} to continue working
when testing on a gdb loaded with an older glibc.

This avoids a failure in tst-pthread-gdb-attach similar to:

  Trying host libthread_db library: .../build/glibc/nptl_db/libthread_db.so.1.
  dlopen failed: /lib64/libc.so.6: version `GLIBC_ABI_DT_RELR' not found (required by .../build/glibc/nptl_db/libthread_db.so.1).

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2022-06-08 11:17:47 -05:00

73 lines
2.6 KiB
Makefile

# Copyright (C) 2002-2022 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library 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
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
# Makefile for NPTL debug library subdirectory of GNU C Library.
subdir := nptl_db
include ../Makeconfig
extra-libs = libthread_db
extra-libs-others := $(extra-libs)
headers = proc_service.h thread_db.h sys/procfs.h
libthread_db-routines = td_init td_log td_ta_new td_ta_delete \
td_ta_get_nthreads td_ta_get_ph \
td_ta_map_id2thr td_ta_map_lwp2thr \
td_ta_thr_iter td_ta_tsd_iter \
td_thr_get_info td_thr_getfpregs td_thr_getgregs \
td_thr_getxregs td_thr_getxregsize td_thr_setfpregs \
td_thr_setgregs td_thr_setprio td_thr_setsigpending \
td_thr_setxregs td_thr_sigsetmask td_thr_tsd \
td_thr_validate td_thr_dbsuspend td_thr_dbresume \
td_ta_setconcurrency td_ta_enable_stats \
td_ta_reset_stats td_ta_get_stats td_ta_event_addr \
td_thr_event_enable td_thr_set_event \
td_thr_clear_event td_thr_event_getmsg \
td_ta_set_event td_ta_event_getmsg \
td_ta_clear_event td_symbol_list \
td_thr_tlsbase td_thr_tls_get_addr \
fetch-value
libthread_db-inhibit-o = $(filter-out .os,$(object-suffixes))
# The ps_* callback functions are not defined.
libthread_db.so-no-z-defs = yes
# This is a hack. This is not the correct solution. When this glibc
# is tested, the gdb used could be loaded by the host glibc, which
# may not support DT_RELR, and report a failure instead of unsupported.
# For now, build this without DT_RELR support to avoid this situation.
libthread_db.so-no-dt-relr = yes
tests-special += $(objpfx)db-symbols.out
include ../Rules
$(objpfx)db-symbols.out: $(objpfx)db-symbols.v.i \
$(objpfx)libc.symlist-private
LC_ALL=C $(AWK) -f $^ > $@; \
$(evaluate-test)
$(objpfx)db-symbols.v.i: db-symbols.awk
$(objpfx)libc.symlist-private: $(..)scripts/abilist.awk \
$(common-objpfx)libc.dynsym
LC_ALL=C $(AWK) -v include_private=1 -f $^ > $@T
mv -f $@T $@