meson: Introduce meson_user_arch source set for arch-specific user-mode

Similarly to the 'target_softmmu_arch' source set which allows
to restrict target-specific sources to system emulation, add
the equivalent 'target_user_arch' set for user emulation.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210428170410.479308-12-f4bug@amsat.org>

diff --git a/meson.build b/meson.build
index d8bb1ec5aa97d5f05f57a9c04c59b902aa77d511..1ffdc9e6c4ef87f5b6b30f2a72e28c56851dce6f 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -1751,6 +1751,7 @@ modules = {}
 hw_arch = {}
 target_arch = {}
 target_softmmu_arch = {}
+target_user_arch = {}
 
 ###############
 # Trace files #
@@ -2168,6 +2169,11 @@ foreach target : target_dirs
     abi = config_target['TARGET_ABI_DIR']
     target_type='user'
     qemu_target_name = 'qemu-' + target_name
+    if arch in target_user_arch
+      t = target_user_arch[arch].apply(config_target, strict: false)
+      arch_srcs += t.sources()
+      arch_deps += t.dependencies()
+    endif
     if 'CONFIG_LINUX_USER' in config_target
       base_dir = 'linux-user'
       target_inc += include_directories('linux-user/host/' / config_host['ARCH'])