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media-libs/openh264: wire up tests, add mips patch
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Patch backports cisco/openh264#3630

Tests are currently broken on BE but pass on LE.

cisco/openh264#3634

Bug: https://bugs.gentoo.org/896138
Signed-off-by: Matoro Mahri <[email protected]>
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matoro committed Mar 15, 2023
1 parent 0773873 commit ee3acb4
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156 changes: 156 additions & 0 deletions media-libs/openh264/files/openh264-2.3.1-pr3630.patch
Original file line number Diff line number Diff line change
@@ -0,0 +1,156 @@
From f60e7d9bdc39e51b644db7624256116202cac992 Mon Sep 17 00:00:00 2001
From: matoro <[email protected]>
Date: Thu, 2 Mar 2023 17:39:45 -0500
Subject: [PATCH] Use environment for mips feature detection

The -march= option is perfectly happy to emit code to run on a processor
different than the one on which it is being compiled. This results in
misdetection of mips features because the test compiles specify that a
given extension should be emitted, but this does not check whether or
not this corresponds to the subarchitecture targeted in CFLAGS by the
rest of the build.

$ echo "void main(void){ __asm__ volatile(\"punpcklhw \$f0, \$f0, \$f0\"); }" > test.c
$ CFLAGS="-march=loongson3a" make test
cc -march=loongson3a test.c -o test
$ ./test
Illegal instruction
$ CFLAGS="-march=native" make -B test
cc -march=native test.c -o test
/tmp/ccLbeyM1.s: Assembler messages:
/tmp/ccLbeyM1.s:25: Error: opcode not supported on this processor: octeon2 (mips64r2) `punpcklhw $f0,$f0,$f0'
make: *** [<builtin>: test] Error 1

This leads to -march=loongson3a getting appended to CFLAGS, which may
conflict with previously specified -march= levels for the build, or
other options. Calling make in the test will use whatever CC/CFLAGS are
specified in the environment to determine whether the actual compile
command line to be used in the build supports these features.

Fixes: 8b942ee ("Adjust the mmi/msa detection mode for mips platform.")
---
build/arch.mk | 8 ++++----
build/loongarch-simd-check.sh | 17 +++++++----------
build/mips-simd-check.sh | 17 +++++++----------
3 files changed, 18 insertions(+), 24 deletions(-)

diff --git a/build/arch.mk b/build/arch.mk
index 4e1538c45c..80983686f7 100644
--- a/build/arch.mk
+++ b/build/arch.mk
@@ -39,14 +39,14 @@ ASM_ARCH = mips
ASMFLAGS += -I$(SRC_PATH)codec/common/mips/
#mmi
ifeq ($(ENABLE_MMI), Yes)
-ENABLE_MMI = $(shell $(SRC_PATH)build/mips-simd-check.sh $(CC) mmi)
+ENABLE_MMI = $(shell CC="$(CC)" CFLAGS="$(CFLAGS)" $(SRC_PATH)build/mips-simd-check.sh mmi)
ifeq ($(ENABLE_MMI), Yes)
CFLAGS += -DHAVE_MMI -march=loongson3a
endif
endif
#msa
ifeq ($(ENABLE_MSA), Yes)
-ENABLE_MSA = $(shell $(SRC_PATH)build/mips-simd-check.sh $(CC) msa)
+ENABLE_MSA = $(shell CC="$(CC)" CFLAGS="$(CFLAGS)" $(SRC_PATH)build/mips-simd-check.sh msa)
ifeq ($(ENABLE_MSA), Yes)
CFLAGS += -DHAVE_MSA -mmsa
endif
@@ -63,14 +63,14 @@ ASM_ARCH = loongarch
ASMFLAGS += -I$(SRC_PATH)codec/common/loongarch/
#lsx
ifeq ($(ENABLE_LSX), Yes)
-ENABLE_LSX = $(shell $(SRC_PATH)build/loongarch-simd-check.sh $(CC) lsx)
+ENABLE_LSX = $(shell CC="$(CC)" CFLAGS="$(CFLAGS)" $(SRC_PATH)build/loongarch-simd-check.sh lsx)
ifeq ($(ENABLE_LSX), Yes)
CFLAGS += -DHAVE_LSX -mlsx
endif
endif
#lasx
ifeq ($(ENABLE_LASX), Yes)
-ENABLE_LASX = $(shell $(SRC_PATH)build/loongarch-simd-check.sh $(CC) lasx)
+ENABLE_LASX = $(shell CC="$(CC)" CFLAGS="$(CFLAGS)" $(SRC_PATH)build/loongarch-simd-check.sh lasx)
ifeq ($(ENABLE_LASX), Yes)
CFLAGS += -DHAVE_LASX -mlasx
endif
diff --git a/build/loongarch-simd-check.sh b/build/loongarch-simd-check.sh
index 597ddcdc22..2e609443b9 100755
--- a/build/loongarch-simd-check.sh
+++ b/build/loongarch-simd-check.sh
@@ -8,29 +8,26 @@
# lsx, lasx (maybe more in the future).
#
# --usage:
-# ./loongarch-simd-check.sh $(CC) lsx
-# or ./loongarch-simd-check.sh $(CC) lasx
+# ./loongarch-simd-check.sh lsx
+# or ./loongarch-simd-check.sh lasx
#
# date: 11/23/2021 Created
#***************************************************************************************

TMPC=$(mktemp tmp.XXXXXX.c)
-TMPO=$(mktemp tmp.XXXXXX.o)
-if [ $2 == "lsx" ]
+if [ $1 == "lsx" ]
then
echo "void main(void){ __asm__ volatile(\"vadd.b \$vr0, \$vr1, \$vr1\"); }" > $TMPC
- $1 -mlsx $TMPC -o $TMPO &> /dev/null
- if test -s $TMPO
+ if make -f /dev/null "${TMPC/.c/.o}"
then
echo "Yes"
fi
-elif [ $2 == "lasx" ]
+elif [ $1 == "lasx" ]
then
echo "void main(void){ __asm__ volatile(\"xvadd.b \$xr0, \$xr1, \$xr1\"); }" > $TMPC
- $1 -mlasx $TMPC -o $TMPO &> /dev/null
- if test -s $TMPO
+ if make -f /dev/null "${TMPC/.c/.o}"
then
echo "Yes"
fi
fi
-rm -f $TMPC $TMPO
+rm -f $TMPC
diff --git a/build/mips-simd-check.sh b/build/mips-simd-check.sh
index d0d72f9edd..5ff1eb432c 100755
--- a/build/mips-simd-check.sh
+++ b/build/mips-simd-check.sh
@@ -4,29 +4,26 @@
# mmi, msa (maybe more in the future).
#
# --usage:
-# ./mips-simd-check.sh $(CC) mmi
-# or ./mips-simd-check.sh $(CC) msa
+# ./mips-simd-check.sh mmi
+# or ./mips-simd-check.sh msa
#
# date: 10/17/2019 Created
#**********************************************************************************

TMPC=$(mktemp tmp.XXXXXX.c)
-TMPO=$(mktemp tmp.XXXXXX.o)
-if [ $2 == "mmi" ]
+if [ $1 == "mmi" ]
then
echo "void main(void){ __asm__ volatile(\"punpcklhw \$f0, \$f0, \$f0\"); }" > $TMPC
- $1 -march=loongson3a $TMPC -o $TMPO &> /dev/null
- if test -s $TMPO
+ if make -f /dev/null "${TMPC/.c/.o}" &> /dev/null
then
echo "Yes"
fi
-elif [ $2 == "msa" ]
+elif [ $1 == "msa" ]
then
echo "void main(void){ __asm__ volatile(\"addvi.b \$w0, \$w1, 1\"); }" > $TMPC
- $1 -mmsa $TMPC -o $TMPO &> /dev/null
- if test -s $TMPO
+ if make -f /dev/null "${TMPC/.c/.o}" &> /dev/null
then
echo "Yes"
fi
fi
-rm -f $TMPC $TMPO
+rm -f $TMPC
20 changes: 16 additions & 4 deletions media-libs/openh264/openh264-2.3.1-r1.ebuild
Original file line number Diff line number Diff line change
Expand Up @@ -19,21 +19,28 @@ LICENSE="BSD"
# https://github.com/cisco/openh264/issues/3459 )
SLOT="0/7"
KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~loong ppc ppc64 ~riscv sparc x86"
IUSE="cpu_flags_arm_neon cpu_flags_x86_avx2 +plugin utils"
IUSE="cpu_flags_arm_neon cpu_flags_x86_avx2 +plugin test utils"

RESTRICT="bindist test"
RESTRICT="bindist !test? ( test )"

BDEPEND="
abi_x86_32? ( dev-lang/nasm )
abi_x86_64? ( dev-lang/nasm )"
abi_x86_64? ( dev-lang/nasm )
test? ( dev-cpp/gtest[${MULTILIB_USEDEP}] )"

DOCS=( LICENSE CONTRIBUTORS README.md )

PATCHES=( "${FILESDIR}"/openh264-2.3.0-pkgconfig-pathfix.patch )
PATCHES=(
"${FILESDIR}"/openh264-2.3.0-pkgconfig-pathfix.patch
"${FILESDIR}"/${PN}-2.3.1-pr3630.patch
)

src_prepare() {
default

ln -svf "/dev/null" "build/gtest-targets.mk" || die
sed -i -e 's/$(LIBPREFIX)gtest.$(LIBSUFFIX)//g' Makefile || die

sed -i -e 's/ | generate-version//g' Makefile || die
sed -e 's|$FULL_VERSION|""|g' codec/common/inc/version_gen.h.template > \
codec/common/inc/version_gen.h
Expand All @@ -53,6 +60,7 @@ emakecmd() {
SHAREDLIB_DIR="${EPREFIX}/usr/$(get_libdir)" \
INCLUDES_DIR="${EPREFIX}/usr/include/${PN}" \
HAVE_AVX2=$(usex cpu_flags_x86_avx2 Yes No) \
HAVE_GTEST=$(usex test Yes No) \
ARCH="$(tc-arch)" \
$@
}
Expand All @@ -71,6 +79,10 @@ multilib_src_compile() {
use plugin && emakecmd ${myopts} plugin
}

multilib_src_test() {
emakecmd test
}

multilib_src_install() {
emakecmd DESTDIR="${D}" install-shared

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