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$NetBSD: patch-src_zm_signal_cpp,v 1.3 2022/09/27 01:20:39 gdt Exp $
Don't assume machine-dependent IP register details are available for any
platform except Linux. Only Linux is sure to have this style of mcontext_t.
Resolves build on systems that have ucontext_t but an mcontext_t that
doesn't look like Linux.
--- src/zm_signal.cpp.orig 2019-02-23 04:38:47.000000000 +1300
+++ src/zm_signal.cpp 2022-01-18 00:42:50.000000000 +1300
@@ -66,13 +66,17 @@
#ifdef __FreeBSD_kernel__
ip = (void *)(uc->uc_mcontext.mc_rip);
#else
+ #if defined(__linux__)
ip = (void *)(uc->uc_mcontext.gregs[REG_RIP]);
+ #endif
#endif
#else
#ifdef __FreeBSD_kernel__
ip = (void *)(uc->uc_mcontext.mc_eip);
#else
+ #if defined(__linux__)
ip = (void *)(uc->uc_mcontext.gregs[REG_EIP]);
+ #endif
#endif
#endif // defined(__x86_64__)
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