5e03027845
This adds a configure check for std::thread. This is needed because std::thread is not available on some systems, like some versions of mingw and DJGPP. This also adds configury to make sure that a threaded gdb links against the correct threading library (-lpthread or the like), and passes the right flags (e.g., -pthread) to the compilations. Note that this also links gdbserver against the thread library. This is not strictly necessary at this point in the series, but a later patch will change gdbsupport to use pthread_sigmask, at which point this will be needed. gdb/ChangeLog 2019-11-26 Tom Tromey <tom@tromey.com> * acinclude.m4: Include ax_pthread.m4. * Makefile.in (PTHREAD_CFLAGS, PTHREAD_LIBS): New variables. (INTERNAL_CFLAGS_BASE): Use PTHREAD_CFLAGS. (CLIBS): Use PTHREAD_LIBS. (aclocal_m4_deps): Add ax_pthread.m4. * config.in, configure: Rebuild. * gdbsupport/common.m4 (GDB_AC_COMMON): Check for std::thread. gdb/gdbserver/ChangeLog 2019-11-26 Tom Tromey <tom@tromey.com> * Makefile.in (PTHREAD_CFLAGS, PTHREAD_LIBS): New variables. (INTERNAL_CFLAGS_BASE): Use PTHREAD_CFLAGS. (GDBSERVER_LIBS): Use PTHREAD_LIBS. * acinclude.m4: Include ax_pthread.m4. * config.in, configure: Rebuild. Change-Id: I00ec55db6077f2615421a93461fc3be57e916aa0
54 lines
1.4 KiB
Plaintext
54 lines
1.4 KiB
Plaintext
dnl gdb/gdbserver/configure.in uses BFD_HAVE_SYS_PROCFS_TYPE.
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m4_include(../../bfd/bfd.m4)
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m4_include(../acx_configure_dir.m4)
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# This gets AM_GDB_WARNINGS.
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m4_include(../warning.m4)
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dnl This gets autoconf bugfixes
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m4_include(../../config/override.m4)
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dnl For ACX_PKGVERSION and ACX_BUGURL.
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m4_include(../../config/acx.m4)
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m4_include(../../config/depstand.m4)
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m4_include(../../config/lead-dot.m4)
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dnl codeset.m4 is needed for common.m4, but not for
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dnl anything else in gdbserver.
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m4_include(../../config/codeset.m4)
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m4_include(../gdbsupport/common.m4)
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dnl For libiberty_INIT.
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m4_include(../libiberty.m4)
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dnl For GDB_AC_PTRACE.
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m4_include(../ptrace.m4)
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m4_include(../ax_cxx_compile_stdcxx.m4)
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dnl For GDB_AC_SELFTEST.
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m4_include(../selftest.m4)
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m4_include([../../config/ax_pthread.m4])
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dnl Check for existence of a type $1 in libthread_db.h
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dnl Based on BFD_HAVE_SYS_PROCFS_TYPE in bfd/bfd.m4.
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AC_DEFUN([GDBSERVER_HAVE_THREAD_DB_TYPE],
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[AC_MSG_CHECKING([for $1 in thread_db.h])
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AC_CACHE_VAL(gdbserver_cv_have_thread_db_type_$1,
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[AC_TRY_COMPILE([
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#include <thread_db.h>],
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[$1 avar],
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gdbserver_cv_have_thread_db_type_$1=yes,
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gdbserver_cv_have_thread_db_type_$1=no
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)])
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if test $gdbserver_cv_have_thread_db_type_$1 = yes; then
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AC_DEFINE([HAVE_]translit($1, [a-z], [A-Z]), 1,
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[Define if <thread_db.h> has $1.])
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fi
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AC_MSG_RESULT($gdbserver_cv_have_thread_db_type_$1)
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])
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