libsysprof-profile: stub out libsysprof-profile library

This does the same thing as we did for libsysprof-analyze, but to contain
the profiler bits that will be used from applications/etc.

meson.build

@@ -41,6 +41,11 @@ need_glib = (need_gtk or
              get_option('sysprofd') != 'none' or
              get_option('agent'))
 
+# Determine what libraries to build
+need_libsysprof_capture = true
+need_libsysprof_profile = get_option('libsysprof') or get_option('agent')
+need_libsysprof_analyze = get_option('libsysprof') or get_option('agent')
+
 glib_req = '2.76.0'
 gtk_req = '4.10'
 polkit_req = '0.105'

src/libsysprof-profile/meson.build

@@ -0,0 +1,61 @@
+libsysprof_profile_public_sources = [
+]
+
+libsysprof_profile_private_sources = [
+]
+
+libsysprof_profile_public_headers = [
+  'sysprof-profile.h',
+]
+
+libsysprof_profile_deps = [
+  dependency('gio-2.0', version: glib_req_version),
+
+  libsysprof_capture_dep,
+]
+
+libsysprof_profile_static = static_library(
+  'sysprof-profile-@0@'.format(soname_major_version),
+  libsysprof_profile_public_sources +
+  libsysprof_profile_private_sources,
+
+    include_directories: [include_directories('.'),
+                          ipc_include_dirs,
+                          libsysprof_capture_include_dirs],
+           dependencies: libsysprof_profile_deps,
+  gnu_symbol_visibility: 'hidden',
+)
+
+libsysprof_profile_static_dep = declare_dependency(
+            link_with: libsysprof_profile_static,
+         dependencies: libsysprof_profile_deps,
+  include_directories: [include_directories('.'),
+                        libsysprof_capture_include_dirs],
+)
+
+libsysprof_profile = library('sysprof-profile-@0@'.format(soname_major_version),
+           dependencies: [libsysprof_profile_static_dep],
+  gnu_symbol_visibility: 'hidden',
+                version: '@0@.0.0'.format(soname_major_version),
+        darwin_versions: '@0@.0'.format(soname_major_version),
+                install: true,
+)
+
+libsysprof_profile_dep = declare_dependency(
+            link_with: libsysprof_profile,
+         dependencies: libsysprof_profile_deps,
+  include_directories: [include_directories('.'), libsysprof_capture_include_dirs],
+)
+meson.override_dependency('sysprof-profile-@0@'.format(soname_major_version), libsysprof_profile_dep)
+
+pkgconfig.generate(libsysprof_profile,
+            subdirs: [sysprof_header_subdir],
+        description: 'A library for recording profiles using various instruments',
+        install_dir: join_paths(get_option('libdir'), 'pkgconfig'),
+           requires: ['gio-2.0'],
+          variables: ['datadir=' + datadir_for_pc_file],
+)
+
+install_headers(libsysprof_profile_public_headers, subdir: sysprof_header_subdir)
+
+subdir('tests')

src/libsysprof-profile/sysprof-profile.h

@@ -0,0 +1,28 @@
+/* sysprof-profile.h
+ *
+ * Copyright 2023 Christian Hergert <chergert@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+G_BEGIN_DECLS
+
+#define SYSPROF_PROFILE_INSIDE
+#undef SYSPROF_PROFILE_INSIDE
+
+G_END_DECLS

src/meson.build

@@ -54,8 +54,17 @@ stackstash_sources = files('stackstash.c')
 
 helpers_sources = files('helpers.c')
 
-subdir('libsysprof-capture')
-subdir('libsysprof-analyze')
+if need_libsysprof_capture
+  subdir('libsysprof-capture')
+endif
+
+if need_libsysprof_analyze
+  subdir('libsysprof-analyze')
+endif
+
+if need_libsysprof_profile
+  subdir('libsysprof-profile')
+endif
 
 if get_option('sysprofd') == 'bundled'
   subdir('sysprofd')