[yocto] [meta-raspberrypi][PATCH 2/2] userland: Make vchostif as shared library

[Jonathan Liu]

Hi Khem,

On 3 April 2016 at 03:59, Khem Raj <raj.khem at gmail.com> wrote:
> This helps in using this library when building
> with PIE binaries
>
> Signed-off-by: Khem Raj <raj.khem at gmail.com>
> ---
>  .../0014-build-shared-library-for-vchostif.patch   | 28 ++++++++++++++++++++++
>  recipes-graphics/userland/userland_git.bb          |  1 +
>  2 files changed, 29 insertions(+)
>  create mode 100644 recipes-graphics/userland/userland/0014-build-shared-library-for-vchostif.patch
>
> diff --git a/recipes-graphics/userland/userland/0014-build-shared-library-for-vchostif.patch b/recipes-graphics/userland/userland/0014-build-shared-library-for-vchostif.patch
> new file mode 100644
> index 0000000..ca7cb66
> --- /dev/null
> +++ b/recipes-graphics/userland/userland/0014-build-shared-library-for-vchostif.patch
> @@ -0,0 +1,28 @@
> +From 4e9aa3fffb458ca4fafd2241c18e9c8008b66ad8 Mon Sep 17 00:00:00 2001
> +From: Khem Raj <raj.khem at gmail.com>
> +Date: Sat, 2 Apr 2016 10:37:24 -0700
> +Subject: [PATCH] build shared library for vchostif
> +
> +Fixes #149
> +
> +Signed-off-by: Khem Raj <raj.khem at gmail.com>
> +---
> + interface/vmcs_host/CMakeLists.txt | 2 +-
> + 1 file changed, 1 insertion(+), 1 deletion(-)
> +
> +diff --git a/interface/vmcs_host/CMakeLists.txt b/interface/vmcs_host/CMakeLists.txt
> +index 22949a8..f8c2f2f 100755
> +--- a/interface/vmcs_host/CMakeLists.txt
> ++++ b/interface/vmcs_host/CMakeLists.txt
> +@@ -17,7 +17,7 @@ set(VCHOSTIF_SOURCE
> + #            ${VMCS_TARGET}/vmcs_main.c
> + #  vc_vchi_haud.c
> +
> +-add_library(vchostif ${VCHOSTIF_SOURCE})
> ++add_library(vchostif SHARED ${VCHOSTIF_SOURCE})
> +
> + #add_library(bufman            vc_vchi_bufman.c            )
> +
> +--
> +2.8.0
> +
> diff --git a/recipes-graphics/userland/userland_git.bb b/recipes-graphics/userland/userland_git.bb
> index efa2128..6ed8fcf 100644
> --- a/recipes-graphics/userland/userland_git.bb
> +++ b/recipes-graphics/userland/userland_git.bb
> @@ -33,6 +33,7 @@ SRC_URI = "\
>      file://0011-fix-cmake-dependency-race.patch \
>      file://0012-Fix-enum-conversion-warnings.patch \
>      file://0013-Fix-for-framerate-with-nested-composition.patch \
> +    file://0014-build-shared-library-for-vchostif.patch \
>      file://0015-wl-dispmanx-buffer-wrapping.patch \
>  "
>  S = "${WORKDIR}/git"
> --
> 2.8.0
>
> --
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This breaks omxplayer compilation when linking omxplayer.bin:
[...]/sysroots/x86_64-linux/usr/libexec/arm-custom-linux-gnueabi/gcc/arm-custom-linux-gnueabi/5.3.0/ld:
omxplayer.o: undefined reference to symbol
'vc_dispmanx_resource_write_data'
[...]/sysroots/raspberrypi2/usr/lib/libvchostif.so: error adding
symbols: DSO missing from command line

Regards,
Jonathan