buildsys: Fix building without plugins on Darwin

Since commit 0082475e26 the plugin symbol list is unconditionally
added to the linker flags, leading to a build failure:

  Undefined symbols for architecture arm64:
    "_qemu_plugin_entry_code", referenced from:
        <initial-undefines>
  ...
  ld: symbol(s) not found for architecture arm64
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  ninja: build stopped: subcommand failed.

Fix by restricting the whole meson file to the --enable-plugins
configure argument.

Fixes: 0082475e26 ("meson: merge plugin_ldflags into emulator_link_args")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2476
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240813112457.92560-1-philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240813202329.1237572-9-alex.bennee@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2024-08-13 21:23:16 +01:00 committed by Alex Bennée
parent cf584a908a
commit 20fdd01e51

View File

@ -1,3 +1,7 @@
if not get_option('plugins')
subdir_done()
endif
# Modules need more symbols than just those in plugins/qemu-plugins.symbols
if not enable_modules
if host_os == 'darwin'
@ -12,29 +16,27 @@ if not enable_modules
endif
endif
if get_option('plugins')
if host_os == 'windows'
dlltool = find_program('dlltool', required: true)
if host_os == 'windows'
dlltool = find_program('dlltool', required: true)
# Generate a .lib file for plugins to link against.
# 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'),
output: 'qemu_plugin_api.def',
capture: true,
command: ['sed', '-e', '0,/^/s//EXPORTS/; s/[{};]//g', '@INPUT@'])
# then use dlltool to assemble a delaylib.
win32_qemu_plugin_api_lib = configure_file(
input: win32_plugin_def,
output: 'libqemu_plugin_api.a',
command: [dlltool, '--input-def', '@INPUT@',
'--output-delaylib', '@OUTPUT@', '--dllname', 'qemu.exe']
)
endif
specific_ss.add(files(
'loader.c',
'core.c',
'api.c',
))
# Generate a .lib file for plugins to link against.
# 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'),
output: 'qemu_plugin_api.def',
capture: true,
command: ['sed', '-e', '0,/^/s//EXPORTS/; s/[{};]//g', '@INPUT@'])
# then use dlltool to assemble a delaylib.
win32_qemu_plugin_api_lib = configure_file(
input: win32_plugin_def,
output: 'libqemu_plugin_api.a',
command: [dlltool, '--input-def', '@INPUT@',
'--output-delaylib', '@OUTPUT@', '--dllname', 'qemu.exe']
)
endif
specific_ss.add(files(
'loader.c',
'core.c',
'api.c',
))