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x86inc: Support creating global symbols from local labels

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On ELF platforms such symbols needs to be flagged as functions with the
correct visibility to please certain linkers in some scenarios.
This commit is contained in:
Henrik Gramner
2017-08-16 15:59:16 +02:00
parent 9e4b3675f2
commit 6b6edd1216
1 changed files with 11 additions and 1 deletions
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12
libavutil/x86/x86inc.asm
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@@ -4,9 +4,9 @@
;* Copyright (C) 2005-2017 x264 project ;* Copyright (C) 2005-2017 x264 project
;* ;*
;* Authors: Loren Merritt <lorenm@u.washington.edu> ;* Authors: Loren Merritt <lorenm@u.washington.edu>
;* Henrik Gramner <henrik@gramner.com>
;* Anton Mitrofanov <BugMaster@narod.ru> ;* Anton Mitrofanov <BugMaster@narod.ru>
;* Fiona Glaser <fiona@x264.com> ;* Fiona Glaser <fiona@x264.com>
;* Henrik Gramner <henrik@gramner.com>
;* ;*
;* Permission to use, copy, modify, and/or distribute this software for any ;* Permission to use, copy, modify, and/or distribute this software for any
;* purpose with or without fee is hereby granted, provided that the above ;* purpose with or without fee is hereby granted, provided that the above
@@ -743,6 +743,16 @@ BRANCH_INSTR jz, je, jnz, jne, jl, jle, jnl, jnle, jg, jge, jng, jnge, ja, jae,
%endif %endif
%endmacro %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 %macro cextern 1
%xdefine %1 mangle(private_prefix %+ _ %+ %1) %xdefine %1 mangle(private_prefix %+ _ %+ %1)
CAT_XDEFINE cglobaled_, %1, 1 CAT_XDEFINE cglobaled_, %1, 1