diff mbox series

ffmpeg: Fix wrong code found with gas/2.41

Message ID 20230731195259.2183474-1-raj.khem@gmail.com
State Accepted, archived
Commit 692e414aed5313ff275b69e93179aa7c559700f3
Headers show
Series ffmpeg: Fix wrong code found with gas/2.41 | expand

Commit Message

Khem Raj July 31, 2023, 7:52 p.m. UTC 
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 ...ops-clip-constants-used-with-shift-i.patch | 77 +++++++++++++++++++
 meta/recipes-multimedia/ffmpeg/ffmpeg_6.0.bb  |  1 +
 2 files changed, 78 insertions(+)
 create mode 100644 meta/recipes-multimedia/ffmpeg/ffmpeg/0001-avcodec-x86-mathops-clip-constants-used-with-shift-i.patch
diff mbox series

Patch

diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/0001-avcodec-x86-mathops-clip-constants-used-with-shift-i.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/0001-avcodec-x86-mathops-clip-constants-used-with-shift-i.patch
new file mode 100644
index 00000000000..a47a20365fe
--- /dev/null
+++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/0001-avcodec-x86-mathops-clip-constants-used-with-shift-i.patch
@@ -0,0 +1,77 @@ 
+From effadce6c756247ea8bae32dc13bb3e6f464f0eb Mon Sep 17 00:00:00 2001
+From: =?UTF-8?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
+
+Upstream-Status: Backport [https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/effadce6c756247ea8bae32dc13bb3e6f464f0eb]
+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;
+ }
+ 
+-- 
+2.41.0
+
diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_6.0.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_6.0.bb
index 1d80fd92949..07c641dc96c 100644
--- a/meta/recipes-multimedia/ffmpeg/ffmpeg_6.0.bb
+++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_6.0.bb
@@ -23,6 +23,7 @@  LIC_FILES_CHKSUM = "file://COPYING.GPLv2;md5=b234ee4d69f5fce4486a80fdaf4a4263 \
                     file://COPYING.LGPLv3;md5=e6a600fd5e1d9cbde2d983680233ad02"
 
 SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \
+           file://0001-avcodec-x86-mathops-clip-constants-used-with-shift-i.patch \
            file://0001-libswscale-riscv-Fix-syntax-of-vsetvli.patch"
 
 SRC_URI[sha256sum] = "57be87c22d9b49c112b6d24bc67d42508660e6b718b3db89c44e47e289137082"