Update libunwind custom frame register and deregister functions for
FreeBSD: use the new doubly underscored names for unw_add_dynamic_fde and unw_remove_dynamic_fde. NOTE: this should be upstreamed...
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/projects/clang900-import/; revision=351610
@ -227,7 +227,7 @@ _LIBUNWIND_EXPORT uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context,
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#if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND)
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#ifdef __FreeBSD__
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#if defined(__FreeBSD__)
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// Based on LLVM's lib/ExecutionEngine/RuntimeDyld/RTDyldMemoryManager.cpp
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// and XXX should be fixed to be alignment-safe.
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@ -242,9 +242,9 @@ static void processFDE(const char *addr, bool isDeregister) {
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uint32_t offset = *((const uint32_t *)p);
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if (offset != 0) {
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if (isDeregister)
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_unw_remove_dynamic_fde((unw_word_t)(uintptr_t)addr);
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__unw_remove_dynamic_fde((unw_word_t)(uintptr_t)addr);
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else
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_unw_add_dynamic_fde((unw_word_t)(uintptr_t)addr);
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__unw_add_dynamic_fde((unw_word_t)(uintptr_t)addr);
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}
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addr = p + length;
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}
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@ -265,8 +265,7 @@ _LIBUNWIND_EXPORT void __deregister_frame(const void *addr) {
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processFDE(addr, true);
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}
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#else
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#else // defined(__FreeBSD__)
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/// Called by programs with dynamic code generators that want
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/// to register a dynamically generated FDE.
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@ -277,7 +276,6 @@ _LIBUNWIND_EXPORT void __register_frame(const void *fde) {
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__unw_add_dynamic_fde((unw_word_t)(uintptr_t)fde);
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}
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/// Called by programs with dynamic code generators that want
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/// to unregister a dynamically generated FDE.
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/// This function has existed on Mac OS X since 10.4, but
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@ -287,7 +285,7 @@ _LIBUNWIND_EXPORT void __deregister_frame(const void *fde) {
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__unw_remove_dynamic_fde((unw_word_t)(uintptr_t)fde);
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}
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#endif
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#endif // defined(__FreeBSD__)
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// The following register/deregister functions are gcc extensions.
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// They have existed on Mac OS X, but have never worked because Mac OS X
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