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 12:05:50 +02:00
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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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2023-11-03 09:17:48 +01:00
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if host_os == 'darwin'
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2022-07-14 10:43:57 +02:00
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configure_file(
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2021-12-10 09:55:15 +01:00
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input: files('qemu-plugins.symbols'),
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output: 'qemu-plugins-ld64.symbols',
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capture: true,
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command: ['sed', '-ne', 's/^[[:space:]]*\\(qemu_.*\\);/_\\1/p', '@INPUT@'])
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plugin_ldflags = ['-Wl,-exported_symbols_list,plugins/qemu-plugins-ld64.symbols']
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else
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plugin_ldflags = ['-Xlinker', '--dynamic-list=' + (meson.project_source_root() / 'plugins/qemu-plugins.symbols')]
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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 12:05:50 +02:00
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endif
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2020-08-03 17:04:25 +02:00
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endif
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2023-08-30 12:20:53 +02:00
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if get_option('plugins')
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2023-11-03 09:17:48 +01:00
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if host_os == 'windows'
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2023-11-06 19:51:04 +01:00
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dlltool = find_program('dlltool', required: true)
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# Generate a .lib file for plugins to link against.
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# First, create a .def file listing all the symbols a plugin should expect to have
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# available in qemu
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win32_plugin_def = configure_file(
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input: files('qemu-plugins.symbols'),
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output: 'qemu_plugin_api.def',
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capture: true,
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command: ['sed', '-e', '0,/^/s//EXPORTS/; s/[{};]//g', '@INPUT@'])
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# then use dlltool to assemble a delaylib.
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win32_qemu_plugin_api_lib = configure_file(
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input: win32_plugin_def,
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2023-11-20 16:08:23 +01:00
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output: 'libqemu_plugin_api.a',
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2023-11-06 19:51:04 +01:00
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command: [dlltool, '--input-def', '@INPUT@',
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'--output-delaylib', '@OUTPUT@', '--dllname', 'qemu.exe']
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)
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endif
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2023-08-30 12:20:53 +02:00
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specific_ss.add(files(
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'loader.c',
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'core.c',
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'api.c',
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), declare_dependency(link_args: plugin_ldflags))
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endif
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