src/Makefile.common.inc

   1 # SPDX-FileCopyrightText: 2017-2024 EfficiOS, Inc.
   2 # SPDX-License-Identifier: MIT
   3
   4 # Path to the plugins build directory.
   5 PLUGINS_PATH = $(abs_top_builddir)/src/plugins
   6
   7 # Takes a plugin name and outputs the needed LDFLAGS to embed it.
   8 #
   9 # The --whole-archive option is important here. From the GNU linker's
  10 # documentation:
  11 #
  12 #     For each archive mentioned on the command line after the
  13 #     --whole-archive option, include every object file in the archive in
  14 #     the link, rather than searching the archive for the required object
  15 #     files.
  16 #
  17 # In our case, we find the plugins thanks to special sections in the
  18 # binary that are filled by plugin objects. If the linker discards those
  19 # symbols because the CLI does not use them directly, the CLI reports
  20 # no plugins found (plugins are effectively not embedded).
  21 pluginarchive = $(LD_WHOLE_ARCHIVE)$(PLUGINS_PATH)/$(1)/.libs/babeltrace-plugin-$(1).a$(LD_NO_WHOLE_ARCHIVE)