highperfocused/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Use .p2align in ASMALIGN() macro

Browse Source 
The test for .align syntax was apparently unreliable with some compilers.
Using the .p2align directive instead avoids the need for this test.

Originally committed as revision 23428 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård
2010-06-02 18:55:17 +00:00
parent a76eec3b78
commit 42719e2051
1 changed files with 1 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
configure vendored
View File

@@ -2794,9 +2794,6 @@ if enabled gprof; then
add_ldflags -p add_ldflags -p
fi fi
# Find out if the .align argument is a power of two or not.
check_asm asmalign_pot '".align 3"'
enabled_any $THREADS_LIST && enable threads enabled_any $THREADS_LIST && enable threads
check_deps $CONFIG_LIST \ check_deps $CONFIG_LIST \
@@ -2819,7 +2816,6 @@ enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
echo "install prefix $prefix" echo "install prefix $prefix"
echo "source path $source_path" echo "source path $source_path"
echo "C compiler $cc" echo "C compiler $cc"
echo ".align is power-of-two $asmalign_pot"
echo "ARCH $arch ($cpu)" echo "ARCH $arch ($cpu)"
if test "$build_suffix" != ""; then if test "$build_suffix" != ""; then
echo "build suffix $build_suffix" echo "build suffix $build_suffix"
@@ -3051,8 +3047,6 @@ get_version LIBAVFORMAT libavformat/avformat.h
get_version LIBAVUTIL libavutil/avutil.h get_version LIBAVUTIL libavutil/avutil.h
get_version LIBAVFILTER libavfilter/avfilter.h get_version LIBAVFILTER libavfilter/avfilter.h
enabled asmalign_pot || align_shift="1 <<"
cat > $TMPH <<EOF cat > $TMPH <<EOF
/* Automatically generated by configure - do not modify! */ /* Automatically generated by configure - do not modify! */
#ifndef FFMPEG_CONFIG_H #ifndef FFMPEG_CONFIG_H
@@ -3063,7 +3057,7 @@ cat > $TMPH <<EOF
#define CC_TYPE "$cc_type" #define CC_TYPE "$cc_type"
#define CC_VERSION $cc_version #define CC_VERSION $cc_version
#define restrict $_restrict #define restrict $_restrict
#define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t" #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
#define EXTERN_PREFIX "${extern_prefix}" #define EXTERN_PREFIX "${extern_prefix}"
#define EXTERN_ASM ${extern_prefix} #define EXTERN_ASM ${extern_prefix}
EOF EOF