meson: set visibility flag when compiler supports it

Since vtest_server and the tests make use of private interfaces we must
mirror the autotoosl build that keeps the private interfaces in a static
library so that these functions can be called by the test code. The main
library that get installed then uses this static library and adds the
exported interface.

Closes #152

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>

meson.build

@@ -60,6 +60,16 @@ foreach w : warnings
    endif
 endforeach
 
+flags = [
+   '-fvisibility=hidden',
+]
+
+foreach f : flags
+   if cc.has_argument(f)
+      add_project_arguments(f, language : 'c')
+   endif
+endforeach
+
 prog_python = import('python').find_installation('python3')
 
 libdrm_dep = dependency('libdrm', version : '>=2.4.50')

src/meson.build

@@ -23,12 +23,10 @@
 
 subdir('gallium')
 
-virglrenderer_sources = [
+virgl_sources = [
    'iov.c',
    'virgl_hw.h',
    'virgl_protocol.h',
-   'virglrenderer.c',
-   'virglrenderer.h',
    'vrend_blitter.c',
    'vrend_blitter.h',
    'vrend_debug.c',
@@ -48,19 +46,25 @@ virglrenderer_sources = [
    'vrend_util.h',
 ]
 
-virglrenderer_egl_sources = [
+virglrenderer_sources = [
+   'virglrenderer.c',
+   'virglrenderer.h',
+]
+
+
+virgl_egl_sources = [
    'virgl_gbm.c',
    'virgl_gbm.h',
    'virgl_egl_context.c',
    'virgl_egl.h',
 ]
 
-virglrenderer_glx_sources = [
+virgl_glx_sources = [
    'virgl_glx_context.c',
    'virgl_glx.h',
 ]
 
-virglrenderer_depends = [
+virgl_depends = [
    gallium_dep,
    epoxy_dep,
    libdrm_dep,
@@ -69,35 +73,48 @@ virglrenderer_depends = [
 ]
 
 if have_egl
-   virglrenderer_sources += virglrenderer_egl_sources
+   virgl_sources += virgl_egl_sources
-   virglrenderer_depends += [gbm_dep]
+   virgl_depends += [gbm_dep]
 endif
 
 if have_glx
-   virglrenderer_sources += virglrenderer_glx_sources
+   virgl_sources += virgl_glx_sources
-   virglrenderer_depends += [glx_dep]
+   virgl_depends += [glx_dep]
 endif
 
+libvirgl = static_library(
+   'virgl',
+   virgl_sources,
+   include_directories: [inc_gallium, inc_configuration],
+   dependencies : virgl_depends,
+)
+
+libvirgl_inc = [
+   inc_gallium,
+   inc_configuration,
+   include_directories('.')
+]
+
+libvirgl_dep = declare_dependency(
+   link_with: libvirgl,
+   include_directories: libvirgl_inc
+)
+
 libvirglrenderer = shared_library(
    'virglrenderer',
    virglrenderer_sources,
    include_directories: [inc_gallium, inc_configuration],
-   dependencies : virglrenderer_depends,
+   dependencies : [virgl_depends, libvirgl_dep],
    version : binary_age.to_string() + '.'
              + interface_age.to_string() + '.'
              + revision.to_string(),
    install : true
 )
 
-libvirglrenderer_inc = [
-   inc_gallium,
-   inc_configuration,
-   include_directories('.')
-]
-
 libvirglrenderer_dep = declare_dependency(
    link_with: libvirglrenderer,
-   include_directories: libvirglrenderer_inc
+   include_directories: libvirgl_inc,
+   dependencies : [libvirgl_dep, gallium_dep]
 )
 
 install_headers('virglrenderer.h', subdir : 'virgl')

tests/fuzzer/meson.build

@@ -29,5 +29,5 @@ virgl_fuzzer = executable(
    'virgl_fuzzer.c',
    c_args : [ '-fsanitize=address', '-fsanitize=fuzzer' ],
    link_args : [ '-fsanitize=address', '-fsanitize=fuzzer' ],
-   dependencies : [libvirglrenderer_dep, epoxy_dep]
+   dependencies : [libvirgl_dep, gallium_dep, epoxy_dep]
 )

tests/meson.build

@@ -30,11 +30,11 @@ libvrtest_sources = [
    'testvirgl_encode.h',
 ]
 
-libvrtest = library(
+libvrtest = static_library(
    'vrtest',
    libvrtest_sources,
    dependencies : [
-      libvirglrenderer_dep,
+      libvirgl_dep,
       gallium_dep,
       check_dep
    ]

vtest/meson.build

@@ -36,7 +36,7 @@ virgl_test_server_sources = [
 virgl_test_server = executable(
    'virgl_test_server',
    virgl_test_server_sources,
-   dependencies : libvirglrenderer_dep,
+   dependencies : [libvirglrenderer_dep, gallium_dep],
    install : true
 )
 
@@ -55,6 +55,6 @@ if with_fuzzer
       c_args : [ '-fsanitize=address', '-fsanitize=fuzzer' ],
       link_args : [ '-fsanitize=address', '-fsanitize=fuzzer' ],
       objects : vtest_obj,
-      dependencies : libvirglrenderer_dep
+      dependencies : libvirgl_dep
    )
 endif