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| <div class="element-contents" id="SEC_Contents"> |
| <h2 class="contents-heading">Table of Contents</h2> |
|
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| <div class="contents"> |
|
|
| <ul class="toc-numbered-mark"> |
| <li><a id="toc-Unix_002dlike" href="#Unix_002dlike">1 Unix-like</a> |
| <ul class="toc-numbered-mark"> |
| <li><a id="toc-Advanced-linking-configuration" href="#Advanced-linking-configuration">1.1 Advanced linking configuration</a></li> |
| <li><a id="toc-BSD" href="#BSD">1.2 BSD</a></li> |
| <li><a id="toc-_0028Open_0029Solaris" href="#g_t_0028Open_0029Solaris">1.3 (Open)Solaris</a></li> |
| <li><a id="toc-Darwin-_0028Mac-OS-X_002c-iPhone_0029" href="#Darwin-_0028Mac-OS-X_002c-iPhone_0029">1.4 Darwin (Mac OS X, iPhone)</a></li> |
| </ul></li> |
| <li><a id="toc-DOS" href="#DOS">2 DOS</a></li> |
| <li><a id="toc-OS_002f2" href="#OS_002f2">3 OS/2</a></li> |
| <li><a id="toc-Windows" href="#Windows">4 Windows</a> |
| <ul class="toc-numbered-mark"> |
| <li><a id="toc-Native-Windows-compilation-using-MinGW-or-MinGW_002dw64" href="#Native-Windows-compilation-using-MinGW-or-MinGW_002dw64">4.1 Native Windows compilation using MinGW or MinGW-w64</a> |
| <ul class="toc-numbered-mark"> |
| <li><a id="toc-Native-Windows-compilation-using-MSYS2" href="#Native-Windows-compilation-using-MSYS2">4.1.1 Native Windows compilation using MSYS2</a></li> |
| </ul></li> |
| <li><a id="toc-Microsoft-Visual-C_002b_002b-or-Intel-C_002b_002b-Compiler-for-Windows" href="#Microsoft-Visual-C_002b_002b-or-Intel-C_002b_002b-Compiler-for-Windows">4.2 Microsoft Visual C++ or Intel C++ Compiler for Windows</a> |
| <ul class="toc-numbered-mark"> |
| <li><a id="toc-Linking-to-FFmpeg-with-Microsoft-Visual-C_002b_002b" href="#Linking-to-FFmpeg-with-Microsoft-Visual-C_002b_002b">4.2.1 Linking to FFmpeg with Microsoft Visual C++</a></li> |
| </ul></li> |
| <li><a id="toc-Cross-compilation-for-Windows-with-Linux-1" href="#Cross-compilation-for-Windows-with-Linux-1">4.3 Cross compilation for Windows with Linux</a></li> |
| <li><a id="toc-Compilation-under-Cygwin" href="#Compilation-under-Cygwin">4.4 Compilation under Cygwin</a></li> |
| <li><a id="toc-Crosscompilation-for-Windows-under-Cygwin" href="#Crosscompilation-for-Windows-under-Cygwin">4.5 Crosscompilation for Windows under Cygwin</a></li> |
| <li><a id="toc-ARM64EC" href="#ARM64EC">4.6 ARM64EC</a></li> |
| </ul></li> |
| </ul> |
| </div> |
| </div> |
|
|
| <a name="Unix_002dlike"></a> |
| <h2 class="chapter">1 Unix-like<span class="pull-right"><a class="anchor hidden-xs" href="#Unix_002dlike" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Unix_002dlike" aria-hidden="true">TOC</a></span></h2> |
|
|
| <p>Some parts of FFmpeg cannot be built with version 2.15 of the GNU |
| assembler which is still provided by a few AMD64 distributions. To |
| make sure your compiler really uses the required version of gas |
| after a binutils upgrade, run: |
| </p> |
| <div class="example"> |
| <pre class="example-preformatted">$(gcc -print-prog-name=as) --version |
| </pre></div> |
|
|
| <p>If not, then you should install a different compiler that has no |
| hard-coded path to gas. In the worst case pass <code class="code">--disable-asm</code> |
| to configure. |
| </p> |
| <a name="Advanced-linking-configuration"></a> |
| <h3 class="section">1.1 Advanced linking configuration<span class="pull-right"><a class="anchor hidden-xs" href="#Advanced-linking-configuration" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Advanced-linking-configuration" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>If you compiled FFmpeg libraries statically and you want to use them to |
| build your own shared library, you may need to force PIC support (with |
| <code class="code">--enable-pic</code> during FFmpeg configure) and add the following option |
| to your project LDFLAGS: |
| </p> |
| <div class="example"> |
| <pre class="example-preformatted">-Wl,-Bsymbolic |
| </pre></div> |
|
|
| <p>If your target platform requires position independent binaries, you should |
| pass the correct linking flag (e.g. <code class="code">-pie</code>) to <code class="code">--extra-ldexeflags</code>. |
| </p> |
| <a name="BSD"></a> |
| <h3 class="section">1.2 BSD<span class="pull-right"><a class="anchor hidden-xs" href="#BSD" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-BSD" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>BSD make will not build FFmpeg, you need to install and use GNU Make |
| (<code class="command">gmake</code>). |
| </p> |
| <a name="g_t_0028Open_0029Solaris"></a> |
| <h3 class="section">1.3 (Open)Solaris<span class="pull-right"><a class="anchor hidden-xs" href="#_0028Open_0029Solaris" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-_0028Open_0029Solaris" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>GNU Make is required to build FFmpeg, so you have to invoke (<code class="command">gmake</code>), |
| standard Solaris Make will not work. When building with a non-c99 front-end |
| (gcc, generic suncc) add either <code class="code">--extra-libs=/usr/lib/values-xpg6.o</code> |
| or <code class="code">--extra-libs=/usr/lib/64/values-xpg6.o</code> to the configure options |
| since the libc is not c99-compliant by default. The probes performed by |
| configure may raise an exception leading to the death of configure itself |
| due to a bug in the system shell. Simply invoke a different shell such as |
| bash directly to work around this: |
| </p> |
| <div class="example"> |
| <pre class="example-preformatted">bash ./configure |
| </pre></div> |
|
|
| <a class="anchor" id="Darwin"></a><a name="Darwin-_0028Mac-OS-X_002c-iPhone_0029"></a> |
| <h3 class="section">1.4 Darwin (Mac OS X, iPhone)<span class="pull-right"><a class="anchor hidden-xs" href="#Darwin-_0028Mac-OS-X_002c-iPhone_0029" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Darwin-_0028Mac-OS-X_002c-iPhone_0029" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>The toolchain provided with Xcode is sufficient to build the basic |
| unaccelerated code. |
| </p> |
| <p>Mac OS X on PowerPC or ARM (iPhone) requires a preprocessor from |
| <a class="url" href="https://github.com/FFmpeg/gas-preprocessor">https://github.com/FFmpeg/gas-preprocessor</a> or |
| <a class="url" href="https://github.com/yuvi/gas-preprocessor">https://github.com/yuvi/gas-preprocessor</a>(currently outdated) to build the optimized |
| assembly functions. Put the Perl script somewhere |
| in your PATH, FFmpeg’s configure will pick it up automatically. |
| </p> |
| <p>Mac OS X on amd64 and x86 requires <code class="command">nasm</code> to build most of the |
| optimized assembly functions. <a class="uref" href="http://www.finkproject.org/">Fink</a>, |
| <a class="uref" href="https://wiki.gentoo.org/wiki/Project:Prefix">Gentoo Prefix</a>, |
| <a class="uref" href="https://mxcl.github.com/homebrew/">Homebrew</a> |
| or <a class="uref" href="http://www.macports.org">MacPorts</a> can easily provide it. |
| </p> |
|
|
| <a name="DOS"></a> |
| <h2 class="chapter">2 DOS<span class="pull-right"><a class="anchor hidden-xs" href="#DOS" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-DOS" aria-hidden="true">TOC</a></span></h2> |
|
|
| <p>Using a cross-compiler is preferred for various reasons. |
| <a class="url" href="http://www.delorie.com/howto/djgpp/linux-x-djgpp.html">http://www.delorie.com/howto/djgpp/linux-x-djgpp.html</a> |
| </p> |
|
|
| <a name="OS_002f2"></a> |
| <h2 class="chapter">3 OS/2<span class="pull-right"><a class="anchor hidden-xs" href="#OS_002f2" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-OS_002f2" aria-hidden="true">TOC</a></span></h2> |
|
|
| <p>For information about compiling FFmpeg on OS/2 see |
| <a class="url" href="http://www.edm2.com/index.php/FFmpeg">http://www.edm2.com/index.php/FFmpeg</a>. |
| </p> |
|
|
| <a name="Windows"></a> |
| <h2 class="chapter">4 Windows<span class="pull-right"><a class="anchor hidden-xs" href="#Windows" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Windows" aria-hidden="true">TOC</a></span></h2> |
|
|
| <a name="Native-Windows-compilation-using-MinGW-or-MinGW_002dw64"></a> |
| <h3 class="section">4.1 Native Windows compilation using MinGW or MinGW-w64<span class="pull-right"><a class="anchor hidden-xs" href="#Native-Windows-compilation-using-MinGW-or-MinGW_002dw64" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Native-Windows-compilation-using-MinGW-or-MinGW_002dw64" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>FFmpeg can be built to run natively on Windows using the MinGW-w64 |
| toolchain. Install the latest versions of MSYS2 and MinGW-w64 from |
| <a class="url" href="http://msys2.github.io/">http://msys2.github.io/</a> and/or <a class="url" href="http://mingw-w64.sourceforge.net/">http://mingw-w64.sourceforge.net/</a>. |
| You can find detailed installation instructions in the download section and |
| the FAQ. |
| </p> |
| <p>Notes: |
| </p> |
| <ul class="itemize mark-bullet"> |
| <li>Building for the MSYS environment is discouraged, MSYS2 provides a full |
| MinGW-w64 environment through <samp class="file">mingw64_shell.bat</samp> or |
| <samp class="file">mingw32_shell.bat</samp> that should be used instead of the environment |
| provided by <samp class="file">msys2_shell.bat</samp>. |
|
|
| </li><li>Building using MSYS2 can be sped up by disabling implicit rules in the |
| Makefile by calling <code class="code">make -r</code> instead of plain <code class="code">make</code>. This |
| speed up is close to non-existent for normal one-off builds and is only |
| noticeable when running make for a second time (for example during |
| <code class="code">make install</code>). |
|
|
| </li><li>In order to compile FFplay, you must have the MinGW development library |
| of <a class="uref" href="http://www.libsdl.org/">SDL</a> and <code class="code">pkg-config</code> installed. |
|
|
| </li><li>By using <code class="code">./configure --enable-shared</code> when configuring FFmpeg, |
| you can build the FFmpeg libraries (e.g. libavutil, libavcodec, |
| libavformat) as DLLs. |
|
|
| </li></ul> |
|
|
| <a name="Native-Windows-compilation-using-MSYS2"></a> |
| <h4 class="subsection">4.1.1 Native Windows compilation using MSYS2<span class="pull-right"><a class="anchor hidden-xs" href="#Native-Windows-compilation-using-MSYS2" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Native-Windows-compilation-using-MSYS2" aria-hidden="true">TOC</a></span></h4> |
|
|
| <p>The MSYS2 MinGW-w64 environment provides ready to use toolchains and dependencies |
| through <code class="command">pacman</code>. |
| </p> |
| <p>Make sure to use <samp class="file">mingw64_shell.bat</samp> or <samp class="file">mingw32_shell.bat</samp> to have |
| the correct MinGW-w64 environment. The default install provides shortcuts to |
| them under <code class="command">MinGW-w64 Win64 Shell</code> and <code class="command">MinGW-w64 Win32 Shell</code>. |
| </p> |
| <div class="example"> |
| <pre class="example-preformatted"># normal msys2 packages |
| pacman -S make pkgconf diffutils |
|
|
| # mingw-w64 packages and toolchains |
| pacman -S mingw-w64-x86_64-nasm mingw-w64-x86_64-gcc mingw-w64-x86_64-SDL2 |
| </pre></div> |
|
|
| <p>To target 32 bits replace <code class="code">x86_64</code> with <code class="code">i686</code> in the command above. |
| </p> |
| <a name="Microsoft-Visual-C_002b_002b-or-Intel-C_002b_002b-Compiler-for-Windows"></a> |
| <h3 class="section">4.2 Microsoft Visual C++ or Intel C++ Compiler for Windows<span class="pull-right"><a class="anchor hidden-xs" href="#Microsoft-Visual-C_002b_002b-or-Intel-C_002b_002b-Compiler-for-Windows" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Microsoft-Visual-C_002b_002b-or-Intel-C_002b_002b-Compiler-for-Windows" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>FFmpeg can be built with MSVC 2013 or later. |
| </p> |
| <p>You will need the following prerequisites: |
| </p> |
| <ul class="itemize mark-bullet"> |
| <li><a class="uref" href="http://msys2.github.io/">MSYS2</a> |
| </li><li><a class="uref" href="http://www.nasm.us/">NASM</a> |
| (Also available via MSYS2’s package manager.) |
| </li></ul> |
|
|
| <p>To set up a proper environment in MSYS2, you need to run <code class="code">msys_shell.bat</code> from |
| the Visual Studio or Intel Compiler command prompt. |
| </p> |
| <p>Place <code class="code">nasm.exe</code> somewhere in your <code class="code">PATH</code>. |
| </p> |
| <p>Next, make sure any other headers and libs you want to use, such as zlib, are |
| located in a spot that the compiler can see. Do so by modifying the <code class="code">LIB</code> |
| and <code class="code">INCLUDE</code> environment variables to include the <strong class="strong">Windows-style</strong> |
| paths to these directories. Alternatively, you can try to use the |
| <code class="code">--extra-cflags</code>/<code class="code">--extra-ldflags</code> configure options. |
| </p> |
| <p>Finally, run: |
| </p> |
| <div class="example"> |
| <pre class="example-preformatted">For MSVC: |
| ./configure --toolchain=msvc |
|
|
| For ICL: |
| ./configure --toolchain=icl |
|
|
| make |
| make install |
| </pre></div> |
|
|
| <p>If you wish to compile shared libraries, add <code class="code">--enable-shared</code> to your |
| configure options. Note that due to the way MSVC and ICL handle DLL imports and |
| exports, you cannot compile static and shared libraries at the same time, and |
| enabling shared libraries will automatically disable the static ones. |
| </p> |
| <p>Notes: |
| </p> |
| <ul class="itemize mark-bullet"> |
| <li>If you wish to build with zlib support, you will have to grab a compatible |
| zlib binary from somewhere, with an MSVC import lib, or if you wish to link |
| statically, you can follow the instructions below to build a compatible |
| <code class="code">zlib.lib</code> with MSVC. Regardless of which method you use, you must still |
| follow step 3, or compilation will fail. |
| <ol class="enumerate"> |
| <li> Grab the <a class="uref" href="http://zlib.net/">zlib sources</a>. |
| </li><li> Edit <code class="code">win32/Makefile.msc</code> so that it uses -MT instead of -MD, since |
| this is how FFmpeg is built as well. |
| </li><li> Edit <code class="code">zconf.h</code> and remove its inclusion of <code class="code">unistd.h</code>. This gets |
| erroneously included when building FFmpeg. |
| </li><li> Run <code class="code">nmake -f win32/Makefile.msc</code>. |
| </li><li> Move <code class="code">zlib.lib</code>, <code class="code">zconf.h</code>, and <code class="code">zlib.h</code> to somewhere MSVC |
| can see. |
| </li></ol> |
|
|
| </li><li>FFmpeg has been tested with the following on i686 and x86_64: |
| <ul class="itemize mark-bullet"> |
| <li>Visual Studio 2013 Pro and Express |
| </li><li>Intel Composer XE 2013 |
| </li><li>Intel Composer XE 2013 SP1 |
| </li></ul> |
| <p>Anything else is not officially supported. |
| </p> |
| </li></ul> |
|
|
| <a name="Linking-to-FFmpeg-with-Microsoft-Visual-C_002b_002b"></a> |
| <h4 class="subsection">4.2.1 Linking to FFmpeg with Microsoft Visual C++<span class="pull-right"><a class="anchor hidden-xs" href="#Linking-to-FFmpeg-with-Microsoft-Visual-C_002b_002b" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Linking-to-FFmpeg-with-Microsoft-Visual-C_002b_002b" aria-hidden="true">TOC</a></span></h4> |
|
|
| <p>If you plan to link with MSVC-built static libraries, you will need |
| to make sure you have <code class="code">Runtime Library</code> set to |
| <code class="code">Multi-threaded (/MT)</code> in your project’s settings. |
| </p> |
| <p>You will need to define <code class="code">inline</code> to something MSVC understands: |
| </p><div class="example"> |
| <pre class="example-preformatted">#define inline __inline |
| </pre></div> |
|
|
| <p>Also note, that as stated in <strong class="strong">Microsoft Visual C++</strong>, you will need |
| an MSVC-compatible <a class="uref" href="http://code.google.com/p/msinttypes/">inttypes.h</a>. |
| </p> |
| <p>If you plan on using import libraries created by dlltool, you must |
| set <code class="code">References</code> to <code class="code">No (/OPT:NOREF)</code> under the linker optimization |
| settings, otherwise the resulting binaries will fail during runtime. |
| This is not required when using import libraries generated by <code class="code">lib.exe</code>. |
| This issue is reported upstream at |
| <a class="url" href="http://sourceware.org/bugzilla/show_bug.cgi?id=12633">http://sourceware.org/bugzilla/show_bug.cgi?id=12633</a>. |
| </p> |
| <p>To create import libraries that work with the <code class="code">/OPT:REF</code> option |
| (which is enabled by default in Release mode), follow these steps: |
| </p> |
| <ol class="enumerate"> |
| <li> Open the <em class="emph">Visual Studio Command Prompt</em>. |
|
|
| <p>Alternatively, in a normal command line prompt, call <samp class="file">vcvars32.bat</samp> |
| which sets up the environment variables for the Visual C++ tools |
| (the standard location for this file is something like |
| <samp class="file">C:\Program Files (x86_\Microsoft Visual Studio 10.0\VC\bin\vcvars32.bat</samp>). |
| </p> |
| </li><li> Enter the <samp class="file">bin</samp> directory where the created LIB and DLL files |
| are stored. |
|
|
| </li><li> Generate new import libraries with <code class="command">lib.exe</code>: |
|
|
| <div class="example"> |
| <pre class="example-preformatted">lib /machine:i386 /def:..\lib\foo-version.def /out:foo.lib |
| </pre></div> |
|
|
| <p>Replace <code class="code">foo-version</code> and <code class="code">foo</code> with the respective library names. |
| </p> |
| </li></ol> |
|
|
| <a class="anchor" id="Cross-compilation-for-Windows-with-Linux"></a><a name="Cross-compilation-for-Windows-with-Linux-1"></a> |
| <h3 class="section">4.3 Cross compilation for Windows with Linux<span class="pull-right"><a class="anchor hidden-xs" href="#Cross-compilation-for-Windows-with-Linux-1" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Cross-compilation-for-Windows-with-Linux-1" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>You must use the MinGW cross compilation tools available at |
| <a class="url" href="http://www.mingw.org/">http://www.mingw.org/</a>. |
| </p> |
| <p>Then configure FFmpeg with the following options: |
| </p><div class="example"> |
| <pre class="example-preformatted">./configure --target-os=mingw32 --cross-prefix=i386-mingw32msvc- |
| </pre></div> |
| <p>(you can change the cross-prefix according to the prefix chosen for the |
| MinGW tools). |
| </p> |
| <p>Then you can easily test FFmpeg with <a class="uref" href="http://www.winehq.com/">Wine</a>. |
| </p> |
| <a name="Compilation-under-Cygwin"></a> |
| <h3 class="section">4.4 Compilation under Cygwin<span class="pull-right"><a class="anchor hidden-xs" href="#Compilation-under-Cygwin" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Compilation-under-Cygwin" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>Please use Cygwin 1.7.x as the obsolete 1.5.x Cygwin versions lack |
| llrint() in its C library. |
| </p> |
| <p>Install your Cygwin with all the "Base" packages, plus the |
| following "Devel" ones: |
| </p><div class="example"> |
| <pre class="example-preformatted">binutils, gcc4-core, make, git, mingw-runtime, texinfo |
| </pre></div> |
|
|
| <p>In order to run FATE you will also need the following "Utils" packages: |
| </p><div class="example"> |
| <pre class="example-preformatted">diffutils |
| </pre></div> |
|
|
| <p>If you want to build FFmpeg with additional libraries, download Cygwin |
| "Devel" packages for Ogg and Vorbis from any Cygwin packages repository: |
| </p><div class="example"> |
| <pre class="example-preformatted">libogg-devel, libvorbis-devel |
| </pre></div> |
|
|
| <p>These library packages are only available from |
| <a class="uref" href="http://sourceware.org/cygwinports/">Cygwin Ports</a>: |
| </p> |
| <div class="example"> |
| <pre class="example-preformatted">libSDL-devel, libgsm-devel, libmp3lame-devel, |
| speex-devel, libtheora-devel, libxvidcore-devel |
| </pre></div> |
|
|
| <p>The recommendation for x264 is to build it from source, as it evolves too |
| quickly for Cygwin Ports to be up to date. |
| </p> |
| <a name="Crosscompilation-for-Windows-under-Cygwin"></a> |
| <h3 class="section">4.5 Crosscompilation for Windows under Cygwin<span class="pull-right"><a class="anchor hidden-xs" href="#Crosscompilation-for-Windows-under-Cygwin" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-Crosscompilation-for-Windows-under-Cygwin" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>With Cygwin you can create Windows binaries that do not need the cygwin1.dll. |
| </p> |
| <p>Just install your Cygwin as explained before, plus these additional |
| "Devel" packages: |
| </p><div class="example"> |
| <pre class="example-preformatted">gcc-mingw-core, mingw-runtime, mingw-zlib |
| </pre></div> |
|
|
| <p>and add some special flags to your configure invocation. |
| </p> |
| <p>For a static build run |
| </p><div class="example"> |
| <pre class="example-preformatted">./configure --target-os=mingw32 --extra-cflags=-mno-cygwin --extra-libs=-mno-cygwin |
| </pre></div> |
|
|
| <p>and for a build with shared libraries |
| </p><div class="example"> |
| <pre class="example-preformatted">./configure --target-os=mingw32 --enable-shared --disable-static --extra-cflags=-mno-cygwin --extra-libs=-mno-cygwin |
| </pre></div> |
|
|
| <a name="ARM64EC"></a> |
| <h3 class="section">4.6 ARM64EC<span class="pull-right"><a class="anchor hidden-xs" href="#ARM64EC" aria-hidden="true">#</a> <a class="anchor hidden-xs"href="#toc-ARM64EC" aria-hidden="true">TOC</a></span></h3> |
|
|
| <p>FFmpeg does not intend to support the Windows ARM64EC build configuration; |
| patches for changing the individual libraries for the purposes of ARM64EC will |
| not be accepted. |
| </p> |
| <p>It may still be possible to build FFmpeg in this build configuration; |
| such a build may seem to work to some extent. Such a build may have some |
| amounts of ABI inconsistencies though - which we are not willing to fix. |
| </p> |
| <p>(Changing aarch64 assembly code to strictly support ARM64EC would require |
| ifdeffing/changing essentially all such assembly code, and would be a |
| huge maintenance burden. Additionally, changing the library ABI |
| surfaces to fix ABI inconsistencies could require extensive and intrusive |
| changes.) |
| </p> |
| <p style="font-size: small;"> |
| This document was generated using <a class="uref" href="https://www.gnu.org/software/texinfo/"><em class="emph">makeinfo</em></a>. |
| </p> |
| </div> |
| </body> |
| </html> |
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