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From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com>,
	"Thomas Huth" <thuth@redhat.com>
Subject: [PULL 15/26] configure, meson: move pthread_setname_np checks to Meson
Date: Thu, 14 Oct 2021 18:29:27 +0200	[thread overview]
Message-ID: <20211014162938.430211-16-pbonzini@redhat.com> (raw)
In-Reply-To: <20211014162938.430211-1-pbonzini@redhat.com>

This makes the pthreads check dead in configure, so remove it
as well.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20211007130829.632254-9-pbonzini@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure                | 78 ----------------------------------------
 meson.build              | 23 ++++++++++++
 util/qemu-thread-posix.c |  5 ++-
 3 files changed, 25 insertions(+), 81 deletions(-)

diff --git a/configure b/configure
index e78f58978f..c7e95e59cc 100755
--- a/configure
+++ b/configure
@@ -3148,71 +3148,6 @@ if test "$modules" = yes; then
     fi
 fi
 
-##########################################
-# pthread probe
-PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
-
-pthread=no
-cat > $TMPC << EOF
-#include <pthread.h>
-static void *f(void *p) { return NULL; }
-int main(void) {
-  pthread_t thread;
-  pthread_create(&thread, 0, f, 0);
-  return 0;
-}
-EOF
-if compile_prog "" "" ; then
-  pthread=yes
-else
-  for pthread_lib in $PTHREADLIBS_LIST; do
-    if compile_prog "" "$pthread_lib" ; then
-      pthread=yes
-      break
-    fi
-  done
-fi
-
-if test "$mingw32" != yes && test "$pthread" = no; then
-  error_exit "pthread check failed" \
-      "Make sure to have the pthread libs and headers installed."
-fi
-
-# check for pthread_setname_np with thread id
-pthread_setname_np_w_tid=no
-cat > $TMPC << EOF
-#include <pthread.h>
-
-static void *f(void *p) { return NULL; }
-int main(void)
-{
-    pthread_t thread;
-    pthread_create(&thread, 0, f, 0);
-    pthread_setname_np(thread, "QEMU");
-    return 0;
-}
-EOF
-if compile_prog "" "$pthread_lib" ; then
-  pthread_setname_np_w_tid=yes
-fi
-
-# check for pthread_setname_np without thread id
-pthread_setname_np_wo_tid=no
-cat > $TMPC << EOF
-#include <pthread.h>
-
-static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
-int main(void)
-{
-    pthread_t thread;
-    pthread_create(&thread, 0, f, 0);
-    return 0;
-}
-EOF
-if compile_prog "" "$pthread_lib" ; then
-  pthread_setname_np_wo_tid=yes
-fi
-
 ##########################################
 # libssh probe
 if test "$libssh" != "no" ; then
@@ -4498,19 +4433,6 @@ if test "$debug_mutex" = "yes" ; then
   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
 fi
 
-# Hold two types of flag:
-#   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
-#                                     a thread we have a handle to
-#   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
-#                                     platform
-if test "$pthread_setname_np_w_tid" = "yes" ; then
-  echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
-  echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
-elif test "$pthread_setname_np_wo_tid" = "yes" ; then
-  echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
-  echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
-fi
-
 if test "$bochs" = "yes" ; then
   echo "CONFIG_BOCHS=y" >> $config_host_mak
 fi
diff --git a/meson.build b/meson.build
index e8e728bf72..26fc4e5792 100644
--- a/meson.build
+++ b/meson.build
@@ -1584,6 +1584,29 @@ config_host_data.set('CONFIG_POSIX_MADVISE', cc.links(gnu_source_prefix + '''
   #include <sys/mman.h>
   #include <stddef.h>
   int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }'''))
+
+config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_W_TID', cc.links('''
+  #include <pthread.h>
+
+  static void *f(void *p) { return NULL; }
+  int main(void)
+  {
+    pthread_t thread;
+    pthread_create(&thread, 0, f, 0);
+    pthread_setname_np(thread, "QEMU");
+    return 0;
+  }''', dependencies: threads))
+config_host_data.set('CONFIG_PTHREAD_SETNAME_NP_WO_TID', cc.links('''
+  #include <pthread.h>
+
+  static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
+  int main(void)
+  {
+    pthread_t thread;
+    pthread_create(&thread, 0, f, 0);
+    return 0;
+  }''', dependencies: threads))
+
 config_host_data.set('CONFIG_SIGNALFD', cc.links(gnu_source_prefix + '''
   #include <sys/signalfd.h>
   #include <stddef.h>
diff --git a/util/qemu-thread-posix.c b/util/qemu-thread-posix.c
index 6c5004220d..e1225b63bd 100644
--- a/util/qemu-thread-posix.c
+++ b/util/qemu-thread-posix.c
@@ -23,7 +23,8 @@ void qemu_thread_naming(bool enable)
 {
     name_threads = enable;
 
-#ifndef CONFIG_THREAD_SETNAME_BYTHREAD
+#if !defined CONFIG_PTHREAD_SETNAME_NP_W_TID && \
+    !defined CONFIG_PTHREAD_SETNAME_NP_WO_TID
     /* This is a debugging option, not fatal */
     if (enable) {
         fprintf(stderr, "qemu: thread naming not supported on this host\n");
@@ -522,7 +523,6 @@ static void *qemu_thread_start(void *args)
     void *arg = qemu_thread_args->arg;
     void *r;
 
-#ifdef CONFIG_THREAD_SETNAME_BYTHREAD
     /* Attempt to set the threads name; note that this is for debug, so
      * we're not going to fail if we can't set it.
      */
@@ -533,7 +533,6 @@ static void *qemu_thread_start(void *args)
         pthread_setname_np(qemu_thread_args->name);
 # endif
     }
-#endif
     QEMU_TSAN_ANNOTATE_THREAD_NAME(qemu_thread_args->name);
     g_free(qemu_thread_args->name);
     g_free(qemu_thread_args);
-- 
2.31.1




  parent reply	other threads:[~2021-10-14 16:40 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-14 16:29 [PULL 00/26] Meson changes for 2021-10-14 Paolo Bonzini
2021-10-14 16:29 ` [PULL 01/26] configure: remove --oss-lib Paolo Bonzini
2021-10-14 16:29 ` [PULL 02/26] audio: remove CONFIG_AUDIO_WIN_INT Paolo Bonzini
2021-10-14 16:29 ` [PULL 03/26] configure, meson: move audio driver detection to Meson Paolo Bonzini
2021-11-01 14:32   ` Peter Maydell
2021-10-14 16:29 ` [PULL 04/26] meson: define symbols for all available audio drivers Paolo Bonzini
2021-10-14 16:29 ` [PULL 05/26] configure: add command line options for " Paolo Bonzini
2021-10-14 16:29 ` [PULL 06/26] kconfig: split CONFIG_SPARSE_MEM from fuzzing Paolo Bonzini
2021-10-14 16:29 ` [PULL 07/26] configure, meson: move fuzzing configuration to Meson Paolo Bonzini
2021-10-14 16:29 ` [PULL 08/26] trace: simple: pass trace_file unmodified to config-host.h Paolo Bonzini
2021-10-14 16:29 ` [PULL 09/26] trace: move configuration from configure to Meson Paolo Bonzini
2021-10-14 16:29 ` [PULL 10/26] configure, meson: move CONFIG_HOST_DSOSUF " Paolo Bonzini
2021-10-14 16:29 ` [PULL 11/26] configure, meson: get HOST_WORDS_BIGENDIAN via the machine object Paolo Bonzini
2021-10-14 16:29 ` [PULL 12/26] configure, meson: remove CONFIG_GCOV from config-host.mak Paolo Bonzini
2021-10-14 16:29 ` [PULL 13/26] meson: HAVE_GDB_BIN is not used by C code Paolo Bonzini
2021-10-14 16:29 ` [PULL 14/26] configure, meson: move remaining HAVE_* compiler tests to Meson Paolo Bonzini
2021-10-14 16:29 ` Paolo Bonzini [this message]
2021-11-15 17:15   ` [PULL 15/26] configure, meson: move pthread_setname_np checks " Daniel P. Berrangé
2021-11-15 17:25     ` Peter Maydell
2021-10-14 16:29 ` [PULL 16/26] configure, meson: move libaio check to meson.build Paolo Bonzini
2021-10-14 16:29 ` [PULL 17/26] configure, meson: move vde detection to meson Paolo Bonzini
2021-10-14 16:29 ` [PULL 18/26] configure, meson: move netmap " Paolo Bonzini
2021-10-14 16:29 ` [PULL 19/26] configure, meson: move Spice configure handling " Paolo Bonzini
2021-10-14 16:29 ` [PULL 20/26] configure: remove obsolete Solaris ar check Paolo Bonzini
2021-10-14 16:29 ` [PULL 21/26] configure, meson: move more compiler checks to Meson Paolo Bonzini
2021-11-15 16:36   ` Peter Maydell
2021-11-15 16:42     ` Peter Maydell
2021-11-16  9:29       ` Paolo Bonzini
2021-11-16 13:13       ` Peter Maydell
2021-11-15 16:55     ` Peter Maydell
2021-10-14 16:29 ` [PULL 22/26] configure: remove deprecated --{enable, disable}-git-update Paolo Bonzini
2021-10-14 16:29 ` [PULL 23/26] configure: accept "internal" for --enable-capstone/slirp/fdt Paolo Bonzini
2021-10-14 16:29 ` [PULL 24/26] configure: prepare for auto-generated option parsing Paolo Bonzini
2021-10-14 16:29 ` [PULL 25/26] meson-buildoptions: include list of tracing backends Paolo Bonzini
2021-10-14 16:29 ` [PULL 26/26] configure: automatically parse command line for meson -D options Paolo Bonzini
2021-10-14 19:15 ` [PULL 00/26] Meson changes for 2021-10-14 Richard Henderson

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