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plugins: detect qemu plugin API symbols from header

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Instead of using a static file (error prone and hard to keep in sync),
we generate it using a script.

Note: if a symbol is not exported, we'll now notice it when linking for
Windows/MacOS platforms.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20241112212622.3590693-3-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20241121165806.476008-37-alex.bennee@linaro.org>
This commit is contained in:
Pierrick Bouvier 2024-11-21 16:58:03 +00:00 • committed by Alex Bennée
parent cfa3a6c545
commit 1ef08e341f
3 changed files with 55 additions and 3 deletions
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12
plugins/meson.build
View file

@ -2,17 +2,23 @@ if not get_option('plugins')
subdir_done()
endif
qemu_plugin_symbols = configure_file(
input: files('../include/qemu/qemu-plugin.h'),
output: 'qemu-plugin.symbols',
capture: true,
command: [files('../scripts/qemu-plugin-symbols.py'), '@INPUT@'])
# Modules need more symbols than just those in plugins/qemu-plugins.symbols
if not enable_modules
if host_os == 'darwin'
configure_file(
input: files('qemu-plugins.symbols'),
input: qemu_plugin_symbols,
output: 'qemu-plugins-ld64.symbols',
capture: true,
command: ['sed', '-ne', 's/^[[:space:]]*\\(qemu_.*\\);/_\\1/p', '@INPUT@'])
emulator_link_args += ['-Wl,-exported_symbols_list,plugins/qemu-plugins-ld64.symbols']
else
emulator_link_args += ['-Xlinker', '--dynamic-list=' + (meson.project_source_root() / 'plugins/qemu-plugins.symbols')]
emulator_link_args += ['-Xlinker', '--dynamic-list=' + qemu_plugin_symbols.full_path()]
endif
endif
@ -23,7 +29,7 @@ if host_os == 'windows'
# First, create a .def file listing all the symbols a plugin should expect to have
# available in qemu
win32_plugin_def = configure_file(
input: files('qemu-plugins.symbols'),
input: qemu_plugin_symbols,
output: 'qemu_plugin_api.def',
capture: true,
command: ['sed', '-e', '0,/^/s//EXPORTS/; s/[{};]//g', '@INPUT@'])