Re: [RFC PATCH v3 5/7] audio/coreaudio: Remove a deprecation warning on macOS 12

[Roman Bolshakov <roman@roolebo.dev>]

On Mon, Jan 10, 2022 at 02:09:59PM +0100, Philippe Mathieu-Daudé wrote:
> When building on macOS 12 we get:
> 
>   audio/coreaudio.c:50:5: error: 'kAudioObjectPropertyElementMaster' is deprecated: first deprecated in macOS 12.0 [-Werror,-Wdeprecated-declarations]
>       kAudioObjectPropertyElementMaster
>       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>       kAudioObjectPropertyElementMain
>   /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreAudio.framework/Headers/AudioHardwareBase.h:208:5: note: 'kAudioObjectPropertyElementMaster' has been explicitly marked deprecated here
>       kAudioObjectPropertyElementMaster API_DEPRECATED_WITH_REPLACEMENT("kAudioObjectPropertyElementMain", macos(10.0, 12.0), ios(2.0, 15.0), watchos(1.0, 8.0), tvos(9.0, 15.0)) = kAudioObjectPropertyElementMain
>       ^
> 
> Replace by kAudioObjectPropertyElementMain, redefining it to
> kAudioObjectPropertyElementMaster if not available, using
> Clang __is_identifier() feature (coreaudio is restricted to
> macOS).
> 
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
> Checkpatch:
> 
>  WARNING: architecture specific defines should be avoided
>  #10: FILE: audio/coreaudio.c:47:
>  +#if !__is_identifier(kAudioObjectPropertyElementMain) /* macOS >= 12.0 */
> 
> Should we define __is_identifier() to 0 for GCC on macOS?
> ---
>  audio/coreaudio.c | 16 ++++++++++------
>  1 file changed, 10 insertions(+), 6 deletions(-)
> 
> diff --git a/audio/coreaudio.c b/audio/coreaudio.c
> index d8a21d3e507..73cbfd479ac 100644
> --- a/audio/coreaudio.c
> +++ b/audio/coreaudio.c
> @@ -44,10 +44,14 @@ typedef struct coreaudioVoiceOut {
>      bool enabled;
>  } coreaudioVoiceOut;
>  
> +#if !__is_identifier(kAudioObjectPropertyElementMain) /* macOS >= 12.0 */
> +#define kAudioObjectPropertyElementMain kAudioObjectPropertyElementMaster
> +#endif

Christian and Akihiko are right you need to replace it with macOS version
wrappers:

diff --git a/audio/coreaudio.c b/audio/coreaudio.c
index 73cbfd479a..7367a2ffd4 100644
--- a/audio/coreaudio.c
+++ b/audio/coreaudio.c
@@ -44,7 +44,8 @@ typedef struct coreaudioVoiceOut {
     bool enabled;
 } coreaudioVoiceOut;

-#if !__is_identifier(kAudioObjectPropertyElementMain) /* macOS >= 12.0 */
+#if !defined(MAC_OS_VERSION_12_0) || \
+    (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_VERSION_12_0)
 #define kAudioObjectPropertyElementMain kAudioObjectPropertyElementMaster
 #endif


And in the patch 6 you'd do likewise:

diff --git a/block/file-posix.c b/block/file-posix.c
index 1d0512026c..c0038629a1 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -3325,7 +3325,8 @@ BlockDriver bdrv_file = {
 static kern_return_t GetBSDPath(io_iterator_t mediaIterator, char *bsdPath,
                                 CFIndex maxPathSize, int flags);

-#if !__is_identifier(IOMainPort) /* macOS >= 12.0 */
+#if !defined(MAC_OS_VERSION_12_0) || \
+    (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_VERSION_12_0)
 #define IOMainPort IOMasterPort
 #endif

This way it the build would work also on older macOS.


Two more issues are left:

1. Linker has corrupted paths to clang directory (happens on all macOS versions).

Monterey:

[732/737] Linking target qemu-system-mips-unsigned
ld: warning: directory not found for option '-Lns/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/13.0.0'
[733/737] Linking target qemu-system-mips64-unsigned
ld: warning: directory not found for option '-Lns/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/13.0.0'
[737/737] Generating qemu-system-mips64 with a custom command

Catalina:

ld: warning: directory not found for option '-Lveloper/CommandLineTools/usr/lib/clang/11.0.0'
[102/105] Linking target qemu-system-or1k-unsigned
ld: warning: directory not found for option '-Lveloper/CommandLineTools/usr/lib/clang/11.0.0'
[104/105] Linking target qemu-system-ppc-unsigned
ld: warning: directory not found for option '-Lveloper/CommandLineTools/usr/lib/clang/11.0.0'
[105/105] Generating qemu-system-ppc with a custom command

2. QEMU tests show FENV_ACCESS warning on Monterey:


[409/771] Compiling C object tests/fp/libtestfloat.a.p/berkeley-testfloat-3_source_test_az_f128_rx.c.o
../tests/fp/berkeley-testfloat-3/source/test_az_f128_rx.c:49:14: warning: '#pragma FENV_ACCESS' is not supported on this target - ignored [-Wignored-pragmas]
#pragma STDC FENV_ACCESS ON
             ^
1 warning generated.
[410/771] Compiling C object tests/fp/libtestfloat.a.p/berkeley-testfloat-3_source_test_abcz_f128.c.o
../tests/fp/berkeley-testfloat-3/source/test_abcz_f128.c:48:14: warning: '#pragma FENV_ACCESS' is not supported on this target - ignored [-Wignored-pragmas]
#pragma STDC FENV_ACCESS ON
             ^
1 warning generated.

Regards,
Roman

> +
>  static const AudioObjectPropertyAddress voice_addr = {
>      kAudioHardwarePropertyDefaultOutputDevice,
>      kAudioObjectPropertyScopeGlobal,
> -    kAudioObjectPropertyElementMaster
> +    kAudioObjectPropertyElementMain
>  };
>  
>  static OSStatus coreaudio_get_voice(AudioDeviceID *id)
> @@ -69,7 +73,7 @@ static OSStatus coreaudio_get_framesizerange(AudioDeviceID id,
>      AudioObjectPropertyAddress addr = {
>          kAudioDevicePropertyBufferFrameSizeRange,
>          kAudioDevicePropertyScopeOutput,
> -        kAudioObjectPropertyElementMaster
> +        kAudioObjectPropertyElementMain
>      };
>  
>      return AudioObjectGetPropertyData(id,
> @@ -86,7 +90,7 @@ static OSStatus coreaudio_get_framesize(AudioDeviceID id, UInt32 *framesize)
>      AudioObjectPropertyAddress addr = {
>          kAudioDevicePropertyBufferFrameSize,
>          kAudioDevicePropertyScopeOutput,
> -        kAudioObjectPropertyElementMaster
> +        kAudioObjectPropertyElementMain
>      };
>  
>      return AudioObjectGetPropertyData(id,
> @@ -103,7 +107,7 @@ static OSStatus coreaudio_set_framesize(AudioDeviceID id, UInt32 *framesize)
>      AudioObjectPropertyAddress addr = {
>          kAudioDevicePropertyBufferFrameSize,
>          kAudioDevicePropertyScopeOutput,
> -        kAudioObjectPropertyElementMaster
> +        kAudioObjectPropertyElementMain
>      };
>  
>      return AudioObjectSetPropertyData(id,
> @@ -121,7 +125,7 @@ static OSStatus coreaudio_set_streamformat(AudioDeviceID id,
>      AudioObjectPropertyAddress addr = {
>          kAudioDevicePropertyStreamFormat,
>          kAudioDevicePropertyScopeOutput,
> -        kAudioObjectPropertyElementMaster
> +        kAudioObjectPropertyElementMain
>      };
>  
>      return AudioObjectSetPropertyData(id,
> @@ -138,7 +142,7 @@ static OSStatus coreaudio_get_isrunning(AudioDeviceID id, UInt32 *result)
>      AudioObjectPropertyAddress addr = {
>          kAudioDevicePropertyDeviceIsRunning,
>          kAudioDevicePropertyScopeOutput,
> -        kAudioObjectPropertyElementMaster
> +        kAudioObjectPropertyElementMain
>      };
>  
>      return AudioObjectGetPropertyData(id,
> -- 
> 2.33.1