[Mesa-dev] [PATCH] gallium/dri-targets: hide all symbols except for __driDriverExtensions
Chia-I Wu
olvaffe at gmail.com
Wed Aug 14 22:26:28 PDT 2013
On Sat, Aug 10, 2013 at 2:56 AM, Marek Olšák <maraeo at gmail.com> wrote:
> Most importantly, this hides all LLVM symbols. They shouldn't clash
> with a different LLVM version used by apps (at least in theory).
>
> $ nm -g --defined-only radeonsi_dri.so
> 01148f30 D __driDriverExtensions
I am not familiar with issues regarding LLVM symbols so I am fine with
the change if this is what needs to be done (except maybe use
-export-symbols-regex __driDriverExtensions to avoid the version
script?)
But I ran the nm command on ilo_dri.so, and almost all of the exported
symbols are from libdricommon or st/dri. I think those two components
need VISIBILITY_CFLAGS in their AM_CFLAGS and __driDriverExtensions
needs to be marked as PUBLIC. This way other gallium targets can
benefit.
> We could do something similar for the other targets.
> ---
> src/gallium/targets/dri-freedreno/Makefile.am | 5 ++++-
> src/gallium/targets/dri-i915/Makefile.am | 5 ++++-
> src/gallium/targets/dri-ilo/Makefile.am | 5 ++++-
> src/gallium/targets/dri-nouveau/Makefile.am | 5 ++++-
> src/gallium/targets/dri-r300/Makefile.am | 5 ++++-
> src/gallium/targets/dri-r600/Makefile.am | 5 ++++-
> src/gallium/targets/dri-radeonsi/Makefile.am | 5 ++++-
> src/gallium/targets/dri-swrast/Makefile.am | 5 ++++-
> src/gallium/targets/dri-vmwgfx/Makefile.am | 5 ++++-
> src/gallium/targets/dri.version | 5 +++++
> 10 files changed, 41 insertions(+), 9 deletions(-)
> create mode 100644 src/gallium/targets/dri.version
>
> diff --git a/src/gallium/targets/dri-freedreno/Makefile.am b/src/gallium/targets/dri-freedreno/Makefile.am
> index cfa1f37..79aa3db 100644
> --- a/src/gallium/targets/dri-freedreno/Makefile.am
> +++ b/src/gallium/targets/dri-freedreno/Makefile.am
> @@ -46,7 +46,10 @@ kgsl_dri_la_SOURCES = \
> $(top_srcdir)/src/mesa/drivers/dri/common/dri_util.c \
> $(top_srcdir)/src/mesa/drivers/dri/common/xmlconfig.c
>
> -kgsl_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined
> +kgsl_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined \
> + -Wl,--version-script=../dri.version
> +
> +kgsl_dri_la_DEPENDENCIES = ../dri.version
>
> kgsl_dri_la_LIBADD = \
> $(top_builddir)/src/mesa/libmesagallium.la \
> diff --git a/src/gallium/targets/dri-i915/Makefile.am b/src/gallium/targets/dri-i915/Makefile.am
> index ce6be78..f13a10b 100644
> --- a/src/gallium/targets/dri-i915/Makefile.am
> +++ b/src/gallium/targets/dri-i915/Makefile.am
> @@ -46,7 +46,10 @@ i915_dri_la_SOURCES = \
> $(top_srcdir)/src/mesa/drivers/dri/common/dri_util.c \
> $(top_srcdir)/src/mesa/drivers/dri/common/xmlconfig.c
>
> -i915_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined
> +i915_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined \
> + -Wl,--version-script=../dri.version
> +
> +i915_dri_la_DEPENDENCIES = ../dri.version
>
> i915_dri_la_LIBADD = \
> $(top_builddir)/src/mesa/libmesagallium.la \
> diff --git a/src/gallium/targets/dri-ilo/Makefile.am b/src/gallium/targets/dri-ilo/Makefile.am
> index 7761f33..9864e5c 100644
> --- a/src/gallium/targets/dri-ilo/Makefile.am
> +++ b/src/gallium/targets/dri-ilo/Makefile.am
> @@ -47,7 +47,10 @@ ilo_dri_la_SOURCES = \
>
> # need -rpath to create a noinst shared library
> ilo_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined \
> - -rpath $(abs_builddir)
> + -rpath $(abs_builddir) \
> + -Wl,--version-script=../dri.version
> +
> +ilo_dri_la_DEPENDENCIES = ../dri.version
>
> ilo_dri_la_LIBADD = \
> $(top_builddir)/src/mesa/libmesagallium.la \
> diff --git a/src/gallium/targets/dri-nouveau/Makefile.am b/src/gallium/targets/dri-nouveau/Makefile.am
> index 69ccf32..26ed682 100644
> --- a/src/gallium/targets/dri-nouveau/Makefile.am
> +++ b/src/gallium/targets/dri-nouveau/Makefile.am
> @@ -45,7 +45,10 @@ nouveau_dri_la_SOURCES = \
> $(top_srcdir)/src/mesa/drivers/dri/common/dri_util.c \
> $(top_srcdir)/src/mesa/drivers/dri/common/xmlconfig.c
>
> -nouveau_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined
> +nouveau_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined \
> + -Wl,--version-script=../dri.version
> +
> +nouveau_dri_la_DEPENDENCIES = ../dri.version
>
> nouveau_dri_la_LIBADD = \
> $(top_builddir)/src/mesa/libmesagallium.la \
> diff --git a/src/gallium/targets/dri-r300/Makefile.am b/src/gallium/targets/dri-r300/Makefile.am
> index 8c0215d..956e0b5 100644
> --- a/src/gallium/targets/dri-r300/Makefile.am
> +++ b/src/gallium/targets/dri-r300/Makefile.am
> @@ -46,7 +46,10 @@ r300_dri_la_SOURCES = \
> $(top_srcdir)/src/mesa/drivers/dri/common/dri_util.c \
> $(top_srcdir)/src/mesa/drivers/dri/common/xmlconfig.c
>
> -r300_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined
> +r300_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined \
> + -Wl,--version-script=../dri.version
> +
> +r300_dri_la_DEPENDENCIES = ../dri.version
>
> r300_dri_la_LIBADD = \
> $(top_builddir)/src/mesa/libmesagallium.la \
> diff --git a/src/gallium/targets/dri-r600/Makefile.am b/src/gallium/targets/dri-r600/Makefile.am
> index 2b3524b..d6804fe 100644
> --- a/src/gallium/targets/dri-r600/Makefile.am
> +++ b/src/gallium/targets/dri-r600/Makefile.am
> @@ -45,7 +45,10 @@ r600_dri_la_SOURCES = \
> $(top_srcdir)/src/mesa/drivers/dri/common/dri_util.c \
> $(top_srcdir)/src/mesa/drivers/dri/common/xmlconfig.c
>
> -r600_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined
> +r600_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined \
> + -Wl,--version-script=../dri.version
> +
> +r600_dri_la_DEPENDENCIES = ../dri.version
>
> r600_dri_la_LIBADD = \
> $(top_builddir)/src/mesa/libmesagallium.la \
> diff --git a/src/gallium/targets/dri-radeonsi/Makefile.am b/src/gallium/targets/dri-radeonsi/Makefile.am
> index f7d87a6..6f2e36c 100644
> --- a/src/gallium/targets/dri-radeonsi/Makefile.am
> +++ b/src/gallium/targets/dri-radeonsi/Makefile.am
> @@ -46,7 +46,10 @@ radeonsi_dri_la_SOURCES = \
> $(top_srcdir)/src/mesa/drivers/dri/common/dri_util.c \
> $(top_srcdir)/src/mesa/drivers/dri/common/xmlconfig.c
>
> -radeonsi_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined
> +radeonsi_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined \
> + -Wl,--version-script=../dri.version
> +
> +radeonsi_dri_la_DEPENDENCIES = ../dri.version
>
> radeonsi_dri_la_LIBADD = \
> $(top_builddir)/src/mesa/libmesagallium.la \
> diff --git a/src/gallium/targets/dri-swrast/Makefile.am b/src/gallium/targets/dri-swrast/Makefile.am
> index 1104379..698fff8 100644
> --- a/src/gallium/targets/dri-swrast/Makefile.am
> +++ b/src/gallium/targets/dri-swrast/Makefile.am
> @@ -46,7 +46,10 @@ swrast_dri_la_SOURCES = \
> $(top_srcdir)/src/mesa/drivers/dri/common/drisw_util.c \
> $(top_srcdir)/src/mesa/drivers/dri/common/xmlconfig.c
>
> -swrast_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined
> +swrast_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined \
> + -Wl,--version-script=../dri.version
> +
> +swrast_dri_la_DEPENDENCIES = ../dri.version
>
> swrast_dri_la_LIBADD = \
> $(top_builddir)/src/mesa/libmesagallium.la \
> diff --git a/src/gallium/targets/dri-vmwgfx/Makefile.am b/src/gallium/targets/dri-vmwgfx/Makefile.am
> index ca7df65..9b7b256 100644
> --- a/src/gallium/targets/dri-vmwgfx/Makefile.am
> +++ b/src/gallium/targets/dri-vmwgfx/Makefile.am
> @@ -45,7 +45,10 @@ vmwgfx_dri_la_SOURCES = \
> $(top_srcdir)/src/mesa/drivers/dri/common/dri_util.c \
> $(top_srcdir)/src/mesa/drivers/dri/common/xmlconfig.c
>
> -vmwgfx_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined
> +vmwgfx_dri_la_LDFLAGS = -module -avoid-version -shared -no-undefined \
> + -Wl,--version-script=../dri.version
> +
> +vmwgfx_dri_la_DEPENDENCIES = ../dri.version
>
> vmwgfx_dri_la_LIBADD = \
> $(top_builddir)/src/mesa/libmesagallium.la \
> diff --git a/src/gallium/targets/dri.version b/src/gallium/targets/dri.version
> new file mode 100644
> index 0000000..d1038a2
> --- /dev/null
> +++ b/src/gallium/targets/dri.version
> @@ -0,0 +1,5 @@
> +{
> + global:
> + __driDriverExtensions;
> + local: *;
> +};
> --
> 1.8.1.2
>
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--
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