summary refs log tree commit diff stats
path: root/plugins
diff options
context:
space:
mode:
authorPaolo Bonzini <pbonzini@redhat.com>2021-08-11 12:05:50 +0200
committerAlex Bennée <alex.bennee@linaro.org>2021-09-02 11:29:34 +0100
commitb906acace2d4f68b6ff8de73739a773cc4851436 (patch)
tree42e6cd9dda73a14c6d714e175c6e989b6ea0a7cd /plugins
parent40e916b4bc414c730df48c7d4405e66c8691756f (diff)
downloadfocaccia-qemu-b906acace2d4f68b6ff8de73739a773cc4851436.tar.gz
focaccia-qemu-b906acace2d4f68b6ff8de73739a773cc4851436.zip
plugins: do not limit exported symbols if modules are active
On Mac --enable-modules and --enable-plugins are currently incompatible, because the
Apple -Wl,-exported_symbols_list command line options prevents the export of any
symbols needed by the modules.  On x86 -Wl,--dynamic-list does not have this effect,
but only because the -Wl,--export-dynamic option provided by gmodule-2.0.pc overrides
it.  On Apple there is no -Wl,--export-dynamic, because it is the default, and thus
no override.

Either way, when modules are active there is no reason to include the plugin_ldflags.
While at it, avoid the useless -Wl,--export-dynamic when --enable-plugins is
specified but --enable-modules is not; this way, the GNU and Apple configurations
are more similar.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/516
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AJB: fix noexport to no-export]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210811100550.54714-1-pbonzini@redhat.com>
Cc: qemu-stable@nongnu.org
Diffstat (limited to 'plugins')
-rw-r--r--plugins/meson.build14
1 files changed, 8 insertions, 6 deletions
diff --git a/plugins/meson.build b/plugins/meson.build
index e77723010e..bfd5c9822a 100644
--- a/plugins/meson.build
+++ b/plugins/meson.build
@@ -1,9 +1,11 @@
-if 'CONFIG_HAS_LD_DYNAMIC_LIST' in config_host
-  plugin_ldflags = ['-Wl,--dynamic-list=' + (meson.build_root() / 'qemu-plugins-ld.symbols')]
-elif 'CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST' in config_host
-  plugin_ldflags = ['-Wl,-exported_symbols_list,' + (meson.build_root() / 'qemu-plugins-ld64.symbols')]
-else
-  plugin_ldflags = []
+plugin_ldflags = []
+# Modules need more symbols than just those in plugins/qemu-plugins.symbols
+if not enable_modules
+  if 'CONFIG_HAS_LD_DYNAMIC_LIST' in config_host
+    plugin_ldflags = ['-Wl,--dynamic-list=' + (meson.build_root() / 'qemu-plugins-ld.symbols')]
+  elif 'CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST' in config_host
+    plugin_ldflags = ['-Wl,-exported_symbols_list,' + (meson.build_root() / 'qemu-plugins-ld64.symbols')]
+  endif
 endif
 
 specific_ss.add(when: 'CONFIG_PLUGIN', if_true: [files(