[RFC PATCH xserver] xfree86: build a shared lib identical to Xorg

[Peter Hutterer]

Because we can use a shared lib in dlsym() for the symbol loader test, but we
can't use the executable.

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
A quick hack to make the xorg_symbol_test bit actually load things and
bail out for appropriate reasons.

 hw/xfree86/drivers/modesetting/meson.build |  2 +-
 hw/xfree86/loader/symbol-test.c            |  3 +--
 hw/xfree86/meson.build                     | 42 +++++++++++++++++++++---------
 3 files changed, 31 insertions(+), 16 deletions(-)

diff --git a/hw/xfree86/drivers/modesetting/meson.build b/hw/xfree86/drivers/modesetting/meson.build
index 518d6c19e..ac6f3275d 100644
--- a/hw/xfree86/drivers/modesetting/meson.build
+++ b/hw/xfree86/drivers/modesetting/meson.build
@@ -28,7 +28,7 @@ shared_module(
 # Test that we don't have any unresolved symbols from our module to Xorg.
 xorg_build_root = join_paths(meson.build_root(), 'hw', 'xfree86')
 symbol_test_args = []
-symbol_test_args += join_paths(xorg_build_root, 'Xorg')
+symbol_test_args += join_paths(xorg_build_root, 'libxorgserver.so')
 symbol_test_args += join_paths(xorg_build_root, 'dixmods', 'libfb.so')
 symbol_test_args += join_paths(xorg_build_root, 'dixmods', 'libshadow.so')
 if build_glamor
diff --git a/hw/xfree86/loader/symbol-test.c b/hw/xfree86/loader/symbol-test.c
index 6b4eb1a71..1d7d84635 100644
--- a/hw/xfree86/loader/symbol-test.c
+++ b/hw/xfree86/loader/symbol-test.c
@@ -35,8 +35,7 @@ int main (int argc, char**argv)
 
     if (argc < 2) {
         fprintf(stderr,
-                "Must pass path of Xorg executable and any "
-                "modules to be loaded.\n");
+                "Must pass path any modules to be loaded.\n");
         exit(1);
     }
 
diff --git a/hw/xfree86/meson.build b/hw/xfree86/meson.build
index 22de2fdd6..e4f7bd681 100644
--- a/hw/xfree86/meson.build
+++ b/hw/xfree86/meson.build
@@ -90,25 +90,41 @@ if build_dri2
     xorg_link += xorg_dri2
 endif
 
+xorg_deps = [
+    pixman_dep,
+    m_dep,
+    dl_dep,
+    pciaccess_dep,
+    sha1_dep,
+    dependency('xau'),
+    xdmcp_dep,
+    xfont2_dep,
+    xshmfence_dep,
+    config_dep,
+    dependency('libdrm'),
+]
+
 executable(
     'Xorg',
     srcs_xorg,
     include_directories: [inc, xorg_inc],
     link_whole: xorg_link,
-    dependencies: [
-        pixman_dep,
-        m_dep,
-        dl_dep,
-        pciaccess_dep,
-        sha1_dep,
-        dependency('xau'),
-        xdmcp_dep,
-        xfont2_dep,
-        xshmfence_dep,
-        config_dep,
-        dependency('libdrm'),
-    ],
+    dependencies: xorg_deps,
     link_args: '-Wl,--export-dynamic',
     c_args: xorg_c_args,
     install: true,
 )
+
+# For symbol presence testing only
+xorgserver_lib = shared_library(
+    'xorgserver',
+    srcs_xorg,
+    include_directories: [inc, xorg_inc],
+    link_whole: xorg_link,
+    dependencies: xorg_deps,
+    link_args: '-Wl,--export-dynamic',
+    c_args: xorg_c_args,
+    install: false,
+)
+
+xorgserver_dep = declare_dependency(link_with : xorgserver_lib)
-- 
2.12.2