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Fix sparc64 build with GCC 9.
Similar to the x86_64 and armv7 build issues, glibc fails to build for sparc64 with current mainline GCC because of aliases declared in the course of defining IFUNCs, which copy their attributes from a header declaration, ending up with fewer attributes than the (built-in) string function they alias. This patch fixes the issue similarly to the fixes for those other architectures. Tested with build-many-glibcs.py compilers build for sparc64-linux-gnu. * sysdeps/sparc/sparc-ifunc.h [SHARED] (sparc_ifunc_redirected_hidden_def): Use __attribute_copy__ to copy attributes from name.
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@ -1,3 +1,9 @@
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2018-11-13 Joseph Myers <joseph@codesourcery.com>
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* sysdeps/sparc/sparc-ifunc.h [SHARED]
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(sparc_ifunc_redirected_hidden_def): Use __attribute_copy__ to
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copy attributes from name.
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2018-11-12 Joseph Myers <joseph@codesourcery.com>
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* sysdeps/arm/arm-ifunc.h [SHARED] (arm_libc_ifunc_hidden_def):
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@ -35,7 +35,8 @@
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#if defined SHARED
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# define sparc_ifunc_redirected_hidden_def(redirect_name, name) \
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__hidden_ver1 (name, __GI_##name, redirect_name) \
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__attribute__ ((visibility ("hidden")));
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__attribute__ ((visibility ("hidden"))) \
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__attribute_copy__ (name);
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#else
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# define sparc_ifunc_redirected_hidden_def(redirect_name, name)
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#endif
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