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
2021-08-11 13:05:50 +03:00
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plugin_ldflags = []
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# Modules need more symbols than just those in plugins/qemu-plugins.symbols
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if not enable_modules
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if 'CONFIG_HAS_LD_DYNAMIC_LIST' in config_host
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plugin_ldflags = ['-Wl,--dynamic-list=' + (meson.build_root() / 'qemu-plugins-ld.symbols')]
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elif 'CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST' in config_host
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plugin_ldflags = ['-Wl,-exported_symbols_list,' + (meson.build_root() / 'qemu-plugins-ld64.symbols')]
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endif
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2020-08-03 18:04:25 +03:00
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endif
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2020-01-24 15:08:01 +03:00
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specific_ss.add(when: 'CONFIG_PLUGIN', if_true: [files(
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'loader.c',
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'core.c',
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'api.c',
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2020-08-03 18:04:25 +03:00
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), declare_dependency(link_args: plugin_ldflags)])
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