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https://git.ffmpeg.org/gitweb/ffmpeg.git/commitdiff/effadce6c756247ea8bae32dc13bb3e6f464f0eb
From db99a6e0ed9490478a7af7b6a3299688b1a329e1 Mon Sep 17 00:00:00 2001
From: Alfred Wingate <parona@protonmail.com>
Date: Sun, 24 Dec 2023 14:02:37 +0200
Subject: [PATCH] ffmpeg: add patch to fix build against binutils-2.41
Signed-off-by: Alfred Wingate <parona@protonmail.com>
--- a/cmake/modules/FindFFMPEG.cmake
+++ b/cmake/modules/FindFFMPEG.cmake
@@ -96,7 +96,9 @@ macro(buildFFMPEG)
-DPKG_CONFIG_PATH=${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/lib/pkgconfig)
set(PATCH_COMMAND ${CMAKE_COMMAND} -E copy
${CMAKE_SOURCE_DIR}/tools/depends/target/ffmpeg/CMakeLists.txt
- <SOURCE_DIR>)
+ <SOURCE_DIR> &&
+ # patch internal ffmpeg, fix build against binutils 2.41
+ patch -p1 < ${CMAKE_SOURCE_DIR}/tools/depends/target/ffmpeg/build-fix-for-binutils-2.41.patch)
if(CMAKE_GENERATOR STREQUAL Xcode)
set(FFMPEG_GENERATOR CMAKE_GENERATOR "Unix Makefiles")
--- /dev/null
+++ b/tools/depends/target/ffmpeg/build-fix-for-binutils-2.41.patch
@@ -0,0 +1,76 @@
+From effadce6c756247ea8bae32dc13bb3e6f464f0eb Mon Sep 17 00:00:00 2001
+From: =?utf8?q?R=C3=A9mi=20Denis-Courmont?= <remi@remlab.net>
+Date: Sun, 16 Jul 2023 18:18:02 +0300
+Subject: [PATCH] avcodec/x86/mathops: clip constants used with shift
+ instructions within inline assembly
+
+Fixes assembling with binutil as >= 2.41
+
+Signed-off-by: James Almer <jamrial@gmail.com>
+---
+ libavcodec/x86/mathops.h | 26 +++++++++++++++++++++++---
+ 1 file changed, 23 insertions(+), 3 deletions(-)
+
+diff --git a/libavcodec/x86/mathops.h b/libavcodec/x86/mathops.h
+index 6298f5ed19..ca7e2dffc1 100644
+--- a/libavcodec/x86/mathops.h
++++ b/libavcodec/x86/mathops.h
+@@ -35,12 +35,20 @@
+ static av_always_inline av_const int MULL(int a, int b, unsigned shift)
+ {
+ int rt, dummy;
++ if (__builtin_constant_p(shift))
+ __asm__ (
+ "imull %3 \n\t"
+ "shrdl %4, %%edx, %%eax \n\t"
+ :"=a"(rt), "=d"(dummy)
+- :"a"(a), "rm"(b), "ci"((uint8_t)shift)
++ :"a"(a), "rm"(b), "i"(shift & 0x1F)
+ );
++ else
++ __asm__ (
++ "imull %3 \n\t"
++ "shrdl %4, %%edx, %%eax \n\t"
++ :"=a"(rt), "=d"(dummy)
++ :"a"(a), "rm"(b), "c"((uint8_t)shift)
++ );
+ return rt;
+ }
+
+@@ -113,19 +121,31 @@ __asm__ volatile(\
+ // avoid +32 for shift optimization (gcc should do that ...)
+ #define NEG_SSR32 NEG_SSR32
+ static inline int32_t NEG_SSR32( int32_t a, int8_t s){
++ if (__builtin_constant_p(s))
+ __asm__ ("sarl %1, %0\n\t"
+ : "+r" (a)
+- : "ic" ((uint8_t)(-s))
++ : "i" (-s & 0x1F)
+ );
++ else
++ __asm__ ("sarl %1, %0\n\t"
++ : "+r" (a)
++ : "c" ((uint8_t)(-s))
++ );
+ return a;
+ }
+
+ #define NEG_USR32 NEG_USR32
+ static inline uint32_t NEG_USR32(uint32_t a, int8_t s){
++ if (__builtin_constant_p(s))
+ __asm__ ("shrl %1, %0\n\t"
+ : "+r" (a)
+- : "ic" ((uint8_t)(-s))
++ : "i" (-s & 0x1F)
+ );
++ else
++ __asm__ ("shrl %1, %0\n\t"
++ : "+r" (a)
++ : "c" ((uint8_t)(-s))
++ );
+ return a;
+ }
+
+--
+2.25.1
+
--
2.43.0
|
