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* [PATCH] Move -lsocket check to common.m4
@ 2023-10-06 13:24 Tom Tromey
  2023-10-10 16:55 ` Tom Tromey
  0 siblings, 1 reply; 3+ messages in thread
From: Tom Tromey @ 2023-10-06 13:24 UTC (permalink / raw)
  To: gdb-patches; +Cc: Tom Tromey

A user pointed out that the -lsocket check in gdb should also apply to
gdbserver -- otherwise it can't find the Solaris socketpair.  This
patch makes the change.  It also removes a couple of redundant
function checks from gdb's configure.ac.

This was tested by the person who reported the bug.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30927
---
 gdb/configure        | 119 +++++++++++++++++++++----------------------
 gdb/configure.ac     |   7 +--
 gdbserver/configure  |  57 +++++++++++++++++++++
 gdbsupport/common.m4 |   2 +
 gdbsupport/configure |  57 +++++++++++++++++++++
 5 files changed, 177 insertions(+), 65 deletions(-)

diff --git a/gdb/configure b/gdb/configure
index 1cbc356cb96..5361bf42952 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -19704,64 +19704,6 @@ if test "$ac_res" != no; then :
 fi
 
 
-# Some systems (e.g. Solaris) have `socketpair' in libsocket.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing socketpair" >&5
-$as_echo_n "checking for library containing socketpair... " >&6; }
-if ${ac_cv_search_socketpair+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char socketpair ();
-int
-main ()
-{
-return socketpair ();
-  ;
-  return 0;
-}
-_ACEOF
-for ac_lib in '' socket; do
-  if test -z "$ac_lib"; then
-    ac_res="none required"
-  else
-    ac_res=-l$ac_lib
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-  fi
-  if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_search_socketpair=$ac_res
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext
-  if ${ac_cv_search_socketpair+:} false; then :
-  break
-fi
-done
-if ${ac_cv_search_socketpair+:} false; then :
-
-else
-  ac_cv_search_socketpair=no
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_socketpair" >&5
-$as_echo "$ac_cv_search_socketpair" >&6; }
-ac_res=$ac_cv_search_socketpair
-if test "$ac_res" != no; then :
-  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-fi
-
-
 # Link in zlib/zstd if we can.  This allows us to read compressed debug
 # sections.
 
@@ -23626,9 +23568,9 @@ $as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
 # ------------------------------ #
 
 for ac_func in getuid getgid \
-		pipe pread pread64 pwrite resize_term \
+		pread pread64 pwrite resize_term \
 		getpgid setsid \
-		sigaction sigsetmask socketpair \
+		sigsetmask \
 		ttrace wresize setlocale iconvlist libiconvlist btowc \
 		setrlimit getrlimit posix_madvise waitpid \
 		use_default_colors
@@ -24473,6 +24415,63 @@ if test "x$ac_cv_func_fork_works" = xyes; then
 
 $as_echo "#define HAVE_WORKING_FORK 1" >>confdefs.h
 
+fi
+
+  # Some systems (e.g. Solaris) have `socketpair' in libsocket.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing socketpair" >&5
+$as_echo_n "checking for library containing socketpair... " >&6; }
+if ${ac_cv_search_socketpair+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char socketpair ();
+int
+main ()
+{
+return socketpair ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' socket; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_socketpair=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_socketpair+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_socketpair+:} false; then :
+
+else
+  ac_cv_search_socketpair=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_socketpair" >&5
+$as_echo "$ac_cv_search_socketpair" >&6; }
+ac_res=$ac_cv_search_socketpair
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
 fi
 
   for ac_func in fdwalk getrlimit pipe pipe2 poll socketpair sigaction \
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 0264199b948..3912b77b27f 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -511,9 +511,6 @@ AC_CHECK_LIB(m, main)
 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 AC_SEARCH_LIBS(gethostbyname, nsl)
 
-# Some systems (e.g. Solaris) have `socketpair' in libsocket.
-AC_SEARCH_LIBS(socketpair, socket)
-
 # Link in zlib/zstd if we can.  This allows us to read compressed debug
 # sections.
 AM_ZLIB
@@ -1349,9 +1346,9 @@ AC_C_BIGENDIAN
 # ------------------------------ #
 
 AC_CHECK_FUNCS([getuid getgid \
-		pipe pread pread64 pwrite resize_term \
+		pread pread64 pwrite resize_term \
 		getpgid setsid \
-		sigaction sigsetmask socketpair \
+		sigsetmask \
 		ttrace wresize setlocale iconvlist libiconvlist btowc \
 		setrlimit getrlimit posix_madvise waitpid \
 		use_default_colors])
diff --git a/gdbserver/configure b/gdbserver/configure
index e807c60c08a..202043202cd 100755
--- a/gdbserver/configure
+++ b/gdbserver/configure
@@ -7135,6 +7135,63 @@ if test "x$ac_cv_func_fork_works" = xyes; then
 
 $as_echo "#define HAVE_WORKING_FORK 1" >>confdefs.h
 
+fi
+
+  # Some systems (e.g. Solaris) have `socketpair' in libsocket.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing socketpair" >&5
+$as_echo_n "checking for library containing socketpair... " >&6; }
+if ${ac_cv_search_socketpair+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char socketpair ();
+int
+main ()
+{
+return socketpair ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' socket; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_socketpair=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_socketpair+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_socketpair+:} false; then :
+
+else
+  ac_cv_search_socketpair=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_socketpair" >&5
+$as_echo "$ac_cv_search_socketpair" >&6; }
+ac_res=$ac_cv_search_socketpair
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
 fi
 
   for ac_func in fdwalk getrlimit pipe pipe2 poll socketpair sigaction \
diff --git a/gdbsupport/common.m4 b/gdbsupport/common.m4
index 3909ec81ccb..baee66f7326 100644
--- a/gdbsupport/common.m4
+++ b/gdbsupport/common.m4
@@ -51,6 +51,8 @@ AC_DEFUN([GDB_AC_COMMON], [
 
   AC_FUNC_MMAP
   AC_FUNC_FORK
+  # Some systems (e.g. Solaris) have `socketpair' in libsocket.
+  AC_SEARCH_LIBS(socketpair, socket)
   AC_CHECK_FUNCS([fdwalk getrlimit pipe pipe2 poll socketpair sigaction \
 		  ptrace64 sbrk setns sigaltstack sigprocmask \
 		  setpgid setpgrp getrusage getauxval sigtimedwait])
diff --git a/gdbsupport/configure b/gdbsupport/configure
index 9433ac41468..2c15e9df840 100755
--- a/gdbsupport/configure
+++ b/gdbsupport/configure
@@ -8151,6 +8151,63 @@ if test "x$ac_cv_func_fork_works" = xyes; then
 
 $as_echo "#define HAVE_WORKING_FORK 1" >>confdefs.h
 
+fi
+
+  # Some systems (e.g. Solaris) have `socketpair' in libsocket.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing socketpair" >&5
+$as_echo_n "checking for library containing socketpair... " >&6; }
+if ${ac_cv_search_socketpair+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char socketpair ();
+int
+main ()
+{
+return socketpair ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' socket; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_socketpair=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_socketpair+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_socketpair+:} false; then :
+
+else
+  ac_cv_search_socketpair=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_socketpair" >&5
+$as_echo "$ac_cv_search_socketpair" >&6; }
+ac_res=$ac_cv_search_socketpair
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
 fi
 
   for ac_func in fdwalk getrlimit pipe pipe2 poll socketpair sigaction \
-- 
2.41.0


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] Move -lsocket check to common.m4
  2023-10-06 13:24 [PATCH] Move -lsocket check to common.m4 Tom Tromey
@ 2023-10-10 16:55 ` Tom Tromey
  2023-10-12 18:32   ` Pedro Alves
  0 siblings, 1 reply; 3+ messages in thread
From: Tom Tromey @ 2023-10-10 16:55 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

>>>>> "Tom" == Tom Tromey <tom@tromey.com> writes:

Tom> A user pointed out that the -lsocket check in gdb should also apply to
Tom> gdbserver -- otherwise it can't find the Solaris socketpair.  This
Tom> patch makes the change.  It also removes a couple of redundant
Tom> function checks from gdb's configure.ac.

Tom> This was tested by the person who reported the bug.

BTW this one should probably also go on the GDB 14 branch.
It seems pretty safe, IMO, and it fixes a Solaris build problem.

Tom

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] Move -lsocket check to common.m4
  2023-10-10 16:55 ` Tom Tromey
@ 2023-10-12 18:32   ` Pedro Alves
  0 siblings, 0 replies; 3+ messages in thread
From: Pedro Alves @ 2023-10-12 18:32 UTC (permalink / raw)
  To: Tom Tromey; +Cc: gdb-patches

On 2023-10-10 17:55, Tom Tromey wrote:
>>>>>> "Tom" == Tom Tromey <tom@tromey.com> writes:
> 
> Tom> A user pointed out that the -lsocket check in gdb should also apply to
> Tom> gdbserver -- otherwise it can't find the Solaris socketpair.  This
> Tom> patch makes the change.  It also removes a couple of redundant
> Tom> function checks from gdb's configure.ac.
> 
> Tom> This was tested by the person who reported the bug.
> 
> BTW this one should probably also go on the GDB 14 branch.
> It seems pretty safe, IMO, and it fixes a Solaris build problem.

Agreed, for both branches:

 Approved-By: Pedro Alves <pedro@palves.net>


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2023-10-12 18:32 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2023-10-06 13:24 [PATCH] Move -lsocket check to common.m4 Tom Tromey
2023-10-10 16:55 ` Tom Tromey
2023-10-12 18:32   ` Pedro Alves

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