[x265] [PATCH 08 of 13] x86inc: Support creating global symbols from local labels

[vignesh at multicorewareinc.com]

# HG changeset patch
# User Vignesh Vijayakumar<vignesh at multicorewareinc.com>
# Date 1517546394 -19800
#      Fri Feb 02 10:09:54 2018 +0530
# Node ID 801c3fde5a56db5c33e2512a68db5ae6297f451c
# Parent  57f5256f729bb0432ace18ba2f229d99499df24e
x86inc: Support creating global symbols from local labels

On ELF platforms such symbols needs to be flagged as functions with the correct visibility to please certain linkers in some scenarios.

diff -r 57f5256f729b -r 801c3fde5a56 source/common/x86/x86inc.asm
--- a/source/common/x86/x86inc.asm	Fri Feb 02 10:07:53 2018 +0530
+++ b/source/common/x86/x86inc.asm	Fri Feb 02 10:09:54 2018 +0530
@@ -728,6 +728,16 @@
     %endif
 %endmacro
 
+; Create a global symbol from a local label with the correct name mangling and type
+%macro cglobal_label 1
+    %if FORMAT_ELF
+        global current_function %+ %1:function hidden
+    %else
+        global current_function %+ %1
+    %endif
+    %1:
+%endmacro
+
 %macro cextern 1
     %xdefine %1 mangle(private_prefix %+ _ %+ %1)
     CAT_XDEFINE cglobaled_, %1, 1
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