|  | @@ -173,6 +173,7 @@ static void **NextStackFrame(void **old_fp, const void *uc) {
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				|  |  |      static const unsigned char *kernel_rt_sigreturn_address = nullptr;
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				|  |  |      static const unsigned char *kernel_vsyscall_address = nullptr;
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				|  |  |      if (num_push_instructions == -1) {
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				|  |  | +#ifdef ABSL_HAVE_VDSO_SUPPORT
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				|  |  |        absl::debugging_internal::VDSOSupport vdso;
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				|  |  |        if (vdso.IsPresent()) {
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				|  |  |          absl::debugging_internal::VDSOSupport::SymbolInfo
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				|  | @@ -201,6 +202,9 @@ static void **NextStackFrame(void **old_fp, const void *uc) {
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				|  |  |        } else {
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				|  |  |          num_push_instructions = 0;
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				|  |  |        }
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				|  |  | +#else
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				|  |  | +      num_push_instructions = 0;
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				|  |  | +#endif
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				|  |  |      }
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				|  |  |      if (num_push_instructions != 0 && kernel_rt_sigreturn_address != nullptr &&
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				|  |  |          old_fp[1] == kernel_rt_sigreturn_address) {
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