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build: Add new libbsd_symver_weak() macro
We will use it for the reworked md5 deprecation logic.
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@ -42,18 +42,29 @@
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#define libbsd_symver_variant(alias, symbol, version) \
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extern __typeof__(symbol) symbol \
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__attribute__((__symver__(#alias "@" #version)))
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#define libbsd_symver_weak(alias, symbol, version) \
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extern __typeof__(symbol) symbol \
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__attribute__((__symver__(#alias "@" #version), __weak__))
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# else
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#define libbsd_symver_default(alias, symbol, version) \
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__asm__(".symver " #symbol "," #alias "@@" #version)
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#define libbsd_symver_variant(alias, symbol, version) \
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__asm__(".symver " #symbol "," #alias "@" #version)
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#define libbsd_symver_weak(alias, symbol, version) \
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libbsd_symver_variant(alias, symbol, version); \
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extern __typeof__(symbol) alias \
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__attribute__((__weak__))
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# endif
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#else
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#define libbsd_symver_default(alias, symbol, version) \
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extern __typeof__(symbol) alias __attribute__((__alias__(#symbol)))
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#define libbsd_symver_variant(alias, symbol, version)
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#define libbsd_symver_weak(alias, symbol, version)
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#endif
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#endif
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