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Tom de Vries 0e8dbf5c5d [gdb/build] Work around GCC ipa-modref bug 
PR mi/32571 reports the following problem:
...
$ gdb -q -batch -ex "b bla.c:100"
<random output>
Make breakpoint pending on future shared library load? (y or [n]) \
  [answered N; input not from terminal]
...
while this is expected:
...
$ gdb -q -batch -ex "b bla.c:100"
No symbol table is loaded.  Use the "file" command.
Make breakpoint pending on future shared library load? (y or [n]) \
  [answered N; input not from terminal]
...

A few factors in reproducing this are building gdb using gcc 14,
"-O2 -flto=auto" and --disable-nls.  For more details, see the PR.

This turns out to be caused by a GCC PR [1], more specifically a problem in
ipa-modref.

Work around this by disabling ipa-modref for GCC versions 12-15 and 16.0,
assuming the GCC 16.1 release will contain a fix.

Tested on aarch64-linux and x86_64-linux.

Approved-By: Andrew Burgess <aburgess@redhat.com>

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=32571

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120987
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..
.dir-locals.el
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.gitattributes
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acinclude.m4
gdb: move libiberty.m4 to gdbsupport
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aclocal.m4
[gdbsupport] Rerun autoreconf -f
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agent.cc
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agent.h
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alt-stack.h
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array-view.h
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ax.def
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block-signals.h
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break-common.h
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btrace-common.cc
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btrace-common.h
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buildargv.h
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byte-vector.h
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ChangeLog-2020-2021
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check-defines.el
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cleanups.cc
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cleanups.h
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common-debug.cc
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common-debug.h
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common-defs.h
[gdb/build] Work around GCC ipa-modref bug
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common-exceptions.cc
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common-exceptions.h
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common-gdbthread.h
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common-inferior.cc
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common-inferior.h
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common-regcache.cc
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common-regcache.h
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common-types.h
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common-utils.cc
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common-utils.h
Introduce attribute::signed_constant
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common.m4
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compiler-type.m4
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config.in
[gdb/build] Fix build breaker on mingw-w64
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configure
gdbsupport: add some -Wunused-* warning flags
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configure.ac
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create-version.sh
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def-vector.h
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default-init-alloc.h
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eintr.h
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enum-flags.h
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environ.cc
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environ.h
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errors.cc
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errors.h
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event-loop.cc
gdbsupport/event-loop: do not truncate poll timeouts to lower second
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event-loop.h
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event-pipe.cc
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event-pipe.h
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fileio.cc
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fileio.h
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filestuff.cc
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filestuff.h
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filtered-iterator.h
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format.cc
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format.h
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forward-scope-exit.h
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function-view.h
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gdb_argv_vec.h
gdbserver: introduce and use new gdb::argv_vec class
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gdb_assert.h
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gdb_binary_search.h
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gdb_file.h
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gdb_locale.h
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gdb_obstack.cc
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gdb_obstack.h
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gdb_proc_service.h
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gdb_ref_ptr.h
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gdb_regex.cc
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gdb_regex.h
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gdb_select.h
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gdb_setjmp.h
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gdb_signals.h
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gdb_splay_tree.h
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gdb_sys_time.h
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gdb_tilde_expand.cc
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gdb_tilde_expand.h
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gdb_unique_ptr.h
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gdb_unlinker.h
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gdb_vecs.cc
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gdb_vecs.h
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gdb_wait.cc
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gdb_wait.h
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gdb-checked-static-cast.h
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gdb-dlfcn.cc
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gdb-dlfcn.h
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gdb-hashtab.h
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gdb-safe-ctype.h
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gdb-sigmask.h
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gdb-xfree.h
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host-defs.h
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intrusive_list.h
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iterator-range.h
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job-control.cc
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job-control.h
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libiberty.m4
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Makefile.am
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Makefile.in
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netstuff.cc
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netstuff.h
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new-op.cc
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next-iterator.h
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observable.h
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offset-type.h
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osabi.cc
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osabi.def
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osabi.h
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owning_intrusive_list.h
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packed.h
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parallel-for.h
gdbsupport: make gdb::parallel_for_each's n parameter a template parameter
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pathstuff.cc
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pathstuff.h
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poison.h
gdb, gdbsupport: fix all ;; instances
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preprocessor.h
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print-utils.cc
gdbsupport: Use xsnprintf() instead of strcat() in print-utils
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print-utils.h
[gdbsupport] Reimplement phex and phex_nz as templates
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ptid.cc
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ptid.h
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ptrace.m4
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range-chain.h
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README
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refcounted-object.h
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reference-to-pointer-iterator.h
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remote-args.cc
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remote-args.h
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rsp-low.cc
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rsp-low.h
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run-time-clock.cc
Fix build when RUSAGE_THREAD is not available & add warning
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run-time-clock.h
Fix build when RUSAGE_THREAD is not available & add warning
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safe-iterator.h
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safe-strerror.cc
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scope-exit.h
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scoped_fd.h
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scoped_ignore_signal.h
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scoped_ignore_sigttou.h
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scoped_mmap.cc
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scoped_mmap.h
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scoped_restore.h
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scoped_signal_handler.h
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search.cc
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search.h
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selftest.cc
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selftest.h
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selftest.m4
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signals-state-save-restore.cc
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signals-state-save-restore.h
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signals.cc
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string-set.h
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symbol.h
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task-group.cc
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task-group.h
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tdesc.cc
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tdesc.h
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thread-pool.cc
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thread-pool.h
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traits.h
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underlying.h
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unordered_dense.h
gdb, gdbserver, gdbsupport: fix some namespace comment formatting
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unordered_map.h
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unordered_set.h
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valid-expr.h
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version.h
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warning.m4
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x86-xstate.h
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xml-utils.cc
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xml-utils.h
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README 

This is a helper library that is used by gdb and gdbserver.

To send patches, follow the gdb patch submission instructions in
../gdb/CONTRIBUTE.  For maintainers, see ../gdb/MAINTAINERS.