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cc/gcc: add preliminray support for 4.8

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This means:
  - introduce the new symbols for 4.8
  - do not always select PPL if graphite is selected

Reported-by: "Plotnikov Dmitry" <leitz@ispras.ru>
[Dmitry did a preliminray patch to add gcc-4.8 support,
 which this patch is inspired from]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
This commit is contained in:
Yann E. MORIN" 2013-05-05 17:59:00 +02:00
parent e4828c01d3
commit 1dc3dd9167
3 changed files with 66 additions and 35 deletions
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46
config/cc/gcc.in
View File

@ -316,9 +316,25 @@ config CC_GCC_4_7_or_later
bool
select CC_GCC_4_6_or_later
config CC_GCC_latest
config CC_GCC_4_8
bool
select CC_GCC_4_8_or_later
select CC_GCC_USE_GMP_MPFR
select CC_GCC_USE_MPC
select CC_GCC_HAS_GRAPHITE
select CC_GCC_HAS_LTO
select CC_GCC_HAS_PKGVERSION_BUGURL
select CC_GCC_HAS_BUILD_ID
select CC_GCC_HAS_LNK_HASH_STYLE
select CC_GCC_HAS_LIBQUADMATH
config CC_GCC_4_8_or_later
bool
select CC_GCC_4_7_or_later
config CC_GCC_latest
bool
select CC_GCC_4_8_or_later
select CC_GCC_USE_GMP_MPFR
select CC_GCC_USE_MPC
select CC_GCC_HAS_GRAPHITE
@ -331,6 +347,22 @@ config CC_GCC_latest
config CC_GCC_HAS_GRAPHITE
bool
# For graphite: gcc 4.4..4.7 need ppl, while 4.8.. need isl
# Prompt in config/cc/gcc.in.2
config CC_GCC_USE_GRAPHITE
bool
default y
depends on CC_GCC_HAS_GRAPHITE
select CLOOG_NEEDED
select PPL_NEEDED if !CC_GCC_4_8_or_later
select ISL_NEEDED if CC_GCC_4_8_or_later
help
Enable the GRAPHITE loop optimsations.
On some systems (eg. Cygwin), PPL and/or CLooG (required to enable
GRAPHITE) may not build properly (yet), so you'll have to say 'N'
here (or help debug the issues)
# The way LTO works is a bit twisted.
# See: http://gcc.gnu.org/wiki/LinkTimeOptimization#Requirements
# Basically:
@ -342,6 +374,15 @@ config CC_GCC_HAS_GRAPHITE
config CC_GCC_HAS_LTO
bool
# Prompt in config/cc/gcc.in.2
config CC_GCC_USE_LTO
bool
default y
depends on CC_GCC_HAS_LTO
select CC_GCC_USE_LIBELF if CC_GCC_4_5
help
Enable the Link Time Optimisations.
config CC_GCC_HAS_PKGVERSION_BUGURL
bool
@ -371,9 +412,6 @@ config CC_GCC_USE_GMP_MPFR
select GMP_NEEDED
select MPFR_NEEDED
config CC_GCC_USE_PPL_CLOOG
bool
select PPL_NEEDED
select CLOOG_NEEDED
config CC_GCC_USE_MPC

23
config/cc/gcc.in.2
View File

@ -70,20 +70,9 @@ config CC_GCC_SYSTEM_ZLIB
comment "Optimisation features"
# Defined in config/cc/gcc.in
config CC_GCC_USE_GRAPHITE
bool
prompt "Enable GRAPHITE loop optimisations"
default y
depends on CC_GCC_HAS_GRAPHITE
select CC_GCC_USE_PPL_CLOOG
help
Enable the GRAPHITE loop optimsations.
This requires the PPL and CLooG companion libraries, and
those will be automatically build for you.
On some systems (eg. Cygwin), PPL and/or CLooG may not
build properly (yet), so you'll have to say 'N' here.
# The way LTO works is a bit twisted.
# See: http://gcc.gnu.org/wiki/LinkTimeOptimization#Requirements
@ -95,17 +84,9 @@ config CC_GCC_USE_GRAPHITE
# advantage of it
# Also, only the 4.5 series needs libelf for LTO; 4.6 has dropped
# the dependency.
# Defined in config/cc/gcc.in
config CC_GCC_USE_LTO
bool
prompt "Enable LTO"
default y
depends on CC_GCC_HAS_LTO
select CC_GCC_USE_LIBELF if CC_GCC_4_5
help
Enable the Link Time Optimisations.
This will require the libelf companion library, and it
wil be build automatically for you.
#-----------------------------------------------------------------------------
comment "Settings for libraries running on target"

32
scripts/build/cc/gcc.sh
View File

@ -282,15 +282,21 @@ do_cc_core_backend() {
extra_config+=("--with-mpc=${complibs}")
fi
if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
extra_config+=("--with-ppl=${complibs}")
# With PPL 0.11+, also pull libpwl if needed
if [ "${CT_PPL_NEEDS_LIBPWL}" = "y" ]; then
host_libstdcxx_flags+=("-L${complibs}/lib")
host_libstdcxx_flags+=("-lpwl")
if [ "${CT_PPL}" = "y" ]; then
extra_config+=("--with-ppl=${complibs}")
# With PPL 0.11+, also pull libpwl if needed
if [ "${CT_PPL_NEEDS_LIBPWL}" = "y" ]; then
host_libstdcxx_flags+=("-L${complibs}/lib")
host_libstdcxx_flags+=("-lpwl")
fi
fi
if [ "${CT_ISL}" = "y" ]; then
extra_config+=("--with-isl=${complibs}")
fi
extra_config+=("--with-cloog=${complibs}")
elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
extra_config+=("--with-ppl=no")
extra_config+=("--with-isl=no")
extra_config+=("--with-cloog=no")
fi
if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
@ -694,15 +700,21 @@ do_cc_backend() {
extra_config+=("--with-mpc=${complibs}")
fi
if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
extra_config+=("--with-ppl=${complibs}")
# With PPL 0.11+, also pull libpwl if needed
if [ "${CT_PPL_NEEDS_LIBPWL}" = "y" ]; then
host_libstdcxx_flags+=("-L${complibs}/lib")
host_libstdcxx_flags+=("-lpwl")
if [ "${CT_PPL}" = "y" ]; then
extra_config+=("--with-ppl=${complibs}")
# With PPL 0.11+, also pull libpwl if needed
if [ "${CT_PPL_NEEDS_LIBPWL}" = "y" ]; then
host_libstdcxx_flags+=("-L${complibs}/lib")
host_libstdcxx_flags+=("-lpwl")
fi
fi
if [ "${CT_ISL}" = "y" ]; then
extra_config+=("--with-isl=${complibs}")
fi
extra_config+=("--with-cloog=${complibs}")
elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
extra_config+=("--with-ppl=no")
extra_config+=("--with-isl=no")
extra_config+=("--with-cloog=no")
fi
if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then