arch: introduce BR2_BINFMT_SUPPORTS_SHARED

In preparation for the refactoring of the static/shared library
support, we add a BR2_BINFMT_SUPPORTS_SHARED hidden option that binary
formats supporting shared libraries should select.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

diff --git a/arch/Config.in b/arch/Config.in
index c05e5d7e8a01507a21ea35661c20db2e1bab099c..c7bef5d8ad2d40e6175c0c4e637df0c1b613e9f1 100644 (file)
--- a/arch/Config.in
+++ b/arch/Config.in
@@ -251,6 +251,10 @@ config BR2_GCC_TARGET_MODE
 config BR2_ARCH_HAS_ATOMICS
        bool
 
+# Must be selected by binary formats that support shared libraries.
+config BR2_BINFMT_SUPPORTS_SHARED
+       bool
+
 # Set up target binary format
 choice
        prompt "Target Binary Format"
@@ -261,6 +265,7 @@ choice
 config BR2_BINFMT_ELF
        bool "ELF"
        depends on !BR2_bfin && !BR2_m68k
+       select BR2_BINFMT_SUPPORTS_SHARED
        help
          ELF (Executable and Linkable Format) is a format for libraries and
          executables used across different architectures and operating
@@ -269,6 +274,7 @@ config BR2_BINFMT_ELF
 config BR2_BINFMT_FDPIC
        bool "FDPIC"
        depends on BR2_bfin
+       select BR2_BINFMT_SUPPORTS_SHARED
        help
          ELF FDPIC binaries are based on ELF, but allow the individual load
          segments of a binary to be located in memory independently of each
@@ -307,6 +313,7 @@ config BR2_BINFMT_FLAT_SEP_DATA
 config BR2_BINFMT_FLAT_SHARED
        bool "Shared binary"
        depends on BR2_bfin || BR2_m68k
+       select BR2_BINFMT_SUPPORTS_SHARED
        help
          Allow to load and link indiviual FLAT binaries at run time.