[FFmpeg-cvslog] arm: Emit .thumb_func directives

[Martin Storsjö]

ffmpeg | branch: master | Martin Storsjö <martin at martin.st> | Fri Oct 12 13:29:51 2018 +0300| [5584abf69d83169a010aca404cd1cf95c23ad9ef] | committer: Martin Storsjö

arm: Emit .thumb_func directives

Prior to Xcode 9.3, the clang built-in assembler didn't support
altmacro, and gas-preprocessor was used for assembling for arm/darwin.

For thumb functions, gas-preprocessor took care of adding the .thumb_func
directives, but when now being able to assemble without gas-preprocessor,
we need to add these directives ourselves.

Signed-off-by: Martin Storsjö <martin at martin.st>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5584abf69d83169a010aca404cd1cf95c23ad9ef
---

 libavutil/arm/asm.S | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libavutil/arm/asm.S b/libavutil/arm/asm.S
index e7eea0271f..62ce493180 100644
--- a/libavutil/arm/asm.S
+++ b/libavutil/arm/asm.S
@@ -46,6 +46,12 @@
 #   define FPU @
 #endif
 
+#if CONFIG_THUMB && defined(__APPLE__)
+#   define TFUNC
+#else
+#   define TFUNC @
+#endif
+
 #if HAVE_AS_ARCH_DIRECTIVE
 #if   HAVE_NEON
         .arch           armv7-a
@@ -98,10 +104,12 @@ FUNC    .endfunc
         .global EXTERN_ASM\name
 ELF     .type   EXTERN_ASM\name, %function
 FUNC    .func   EXTERN_ASM\name
+TFUNC   .thumb_func EXTERN_ASM\name
 EXTERN_ASM\name:
     .else
 ELF     .type   \name, %function
 FUNC    .func   \name
+TFUNC   .thumb_func \name
 \name:
     .endif
 .endm