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| author | Alexandre Rostovtsev <tetromino@gentoo.org> | 2013-09-02 13:59:18 -0400 |
|---|---|---|
| committer | Alexandre Rostovtsev <tetromino@gentoo.org> | 2014-04-10 01:38:41 -0400 |
| commit | 2b178c762fbc0706031e9890ba190233e243a602 (patch) | |
| tree | 950e112052d9824c488eea3bcd51f4c36f482eaf /configure.ac | |
| parent | 7089cf89672b70711b0ebe10fdd24cd73f6060d5 (diff) | |
| download | glib-2b178c762fbc0706031e9890ba190233e243a602.tar.gz glib-2b178c762fbc0706031e9890ba190233e243a602.tar.bz2 glib-2b178c762fbc0706031e9890ba190233e243a602.zip | |
gobject: try to link with -Wl,-z,nodelete
Since the type system does not support reloading its data and assumes
that libgobject remains loaded for the lifetime of the process, we
should link libgobject with a flag indicating that it can't be unloaded.
https://bugzilla.gnome.org/show_bug.cgi?id=707298
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index b94e6f3cc..806b6dfe2 100644 --- a/configure.ac +++ b/configure.ac @@ -3469,6 +3469,40 @@ fi AC_SUBST(GLIB_LINK_FLAGS) dnl +dnl Check for -z,nodelete linker flag: the type system assumes that +dnl libgobject stays loaded for the lifetime of the process. +dnl Since ld.bfd does not treat wrong -z options as fatal by default, +dnl we also try to check for the --fatal-warnings linker flag if +dnl auto-detecting. +dnl + +AC_ARG_ENABLE([znodelete], + [AS_HELP_STRING([--disable-znodelete], + [avoid linking with -z,nodelete])],, + [SAVED_LDFLAGS="${LDFLAGS}" + AC_MSG_CHECKING([for --fatal-warnings linker flag]) + LDFLAGS=-Wl,--fatal-warnings + AC_TRY_LINK([], [int main (void) { return 0; }], + AC_MSG_RESULT(yes) + [ldflags_fatal=-Wl,--fatal-warnings], + AC_MSG_RESULT(no) + ldflags_fatal=) + AC_MSG_CHECKING([for -z,nodelete linker flag]) + LDFLAGS="$ldflags_fatal -Wl,-z,nodelete" + AC_TRY_LINK([], [int main (void) { return 0; }], + AC_MSG_RESULT(yes) + enable_znodelete=yes, + AC_MSG_RESULT(no) + enable_znodelete=no) + LDFLAGS="${SAVED_LDFLAGS}"]) + +if test "x${enable_znodelete}" = "xyes"; then + GOBJECT_LINK_FLAGS=-Wl,-z,nodelete +fi + +AC_SUBST(GOBJECT_LINK_FLAGS) + +dnl dnl Check for -fvisibility=hidden to determine if we can do GNU-style dnl visibility attributes for symbol export control dnl |