[Minios-devel] [UNIKRAFT PATCH 1/4] lib/posix-libdl: Introduce POSIX libdl library skeleton

[Costin Lupu <costin.lupu@xxxxxxxxx>]

A great number of libraries use explicit loading of dynamic libraries and for
this reason we provide the libdl Unikraft implementation. Given that libdl is
POSIX, we propose a new name convention for internal libraries which implement
POSIX functions: every internal library will have the 'posix-' prefix in order
to differentiate it from libraries that implement Unikraft specific
functionalities.

Signed-off-by: Andrei Gogonea <andrei.gogonea09@xxxxxxxxx>
Signed-off-by: Teodora Serbanescu <teo.serbanescu16@xxxxxxxxx>
Signed-off-by: Costin Lupu <costin.lupu@xxxxxxxxx>
---
 lib/Config.uk                 | 1 +
 lib/Makefile.uk               | 1 +
 lib/posix-libdl/Config.uk     | 3 +++
 lib/posix-libdl/Makefile.uk   | 4 ++++
 lib/posix-libdl/exportsyms.uk | 1 +
 5 files changed, 10 insertions(+)
 create mode 100644 lib/posix-libdl/Config.uk
 create mode 100644 lib/posix-libdl/Makefile.uk
 create mode 100644 lib/posix-libdl/exportsyms.uk

diff --git a/lib/Config.uk b/lib/Config.uk
index f61d3b1e..e97a9af3 100644
--- a/lib/Config.uk
+++ b/lib/Config.uk
@@ -49,3 +49,4 @@ source "lib/ukswrand/Config.uk"
 source "lib/ukbus/Config.uk"
 source "lib/uksglist/Config.uk"
 source "lib/uknetdev/Config.uk"
+source "lib/posix-libdl/Config.uk"
diff --git a/lib/Makefile.uk b/lib/Makefile.uk
index b7ad6287..b41345de 100644
--- a/lib/Makefile.uk
+++ b/lib/Makefile.uk
@@ -26,3 +26,4 @@ $(eval $(call _import_lib,$(CONFIG_UK_BASE)/lib/ukmpi))
 $(eval $(call _import_lib,$(CONFIG_UK_BASE)/lib/ukbus))
 $(eval $(call _import_lib,$(CONFIG_UK_BASE)/lib/uksglist))
 $(eval $(call _import_lib,$(CONFIG_UK_BASE)/lib/uknetdev))
+$(eval $(call _import_lib,$(CONFIG_UK_BASE)/lib/posix-libdl))
diff --git a/lib/posix-libdl/Config.uk b/lib/posix-libdl/Config.uk
new file mode 100644
index 00000000..f2d2fb24
--- /dev/null
+++ b/lib/posix-libdl/Config.uk
@@ -0,0 +1,3 @@
+config POSIX_LIBDL
+       bool "libdl: POSIX libdl library"
+       default n
diff --git a/lib/posix-libdl/Makefile.uk b/lib/posix-libdl/Makefile.uk
new file mode 100644
index 00000000..4e5109a5
--- /dev/null
+++ b/lib/posix-libdl/Makefile.uk
@@ -0,0 +1,4 @@
+$(eval $(call addlib_s,posix_libdl,$(CONFIG_POSIX_LIBDL)))
+
+CINCLUDES-$(CONFIG_POSIX_LIBDL)    += -I$(POSIX_LIBDL_BASE)/include
+CXXINCLUDES-$(CONFIG_POSIX_LIBDL)  += -I$(POSIX_LIBDL_BASE)/include
diff --git a/lib/posix-libdl/exportsyms.uk b/lib/posix-libdl/exportsyms.uk
new file mode 100644
index 00000000..621e94f0
--- /dev/null
+++ b/lib/posix-libdl/exportsyms.uk
@@ -0,0 +1 @@
+none
-- 
2.20.1


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