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-rw-r--r--erts/emulator/sys/unix/sys_float.c26
1 files changed, 3 insertions, 23 deletions
diff --git a/erts/emulator/sys/unix/sys_float.c b/erts/emulator/sys/unix/sys_float.c
index 8fe7e599e5..89e2484b17 100644
--- a/erts/emulator/sys/unix/sys_float.c
+++ b/erts/emulator/sys/unix/sys_float.c
@@ -499,18 +499,8 @@ static int mask_fpe(void)
#define mc_pc(mc) ((mc)->gregs[REG_RIP])
#elif defined(__linux__) && defined(__i386__)
#define mc_pc(mc) ((mc)->gregs[REG_EIP])
-#elif defined(__DARWIN__) && defined(__i386__)
-#ifdef DARWIN_MODERN_MCONTEXT
-#define mc_pc(mc) ((mc)->__ss.__eip)
-#else
-#define mc_pc(mc) ((mc)->ss.eip)
-#endif
-#elif defined(__DARWIN__) && defined(__x86_64__)
-#ifdef DARWIN_MODERN_MCONTEXT
-#define mc_pc(mc) ((mc)->__ss.__rip)
-#else
-#define mc_pc(mc) ((mc)->ss.rip)
-#endif
+#elif defined(__DARWIN__)
+# error "Floating-point exceptions not supported on MacOS X"
#elif defined(__FreeBSD__) && defined(__x86_64__)
#define mc_pc(mc) ((mc)->mc_rip)
#elif defined(__FreeBSD__) && defined(__i386__)
@@ -575,17 +565,7 @@ static void fpe_sig_action(int sig, siginfo_t *si, void *puc)
regs[PT_FPSCR] = 0x80|0x40|0x10; /* VE, OE, ZE; not UE or XE */
#endif
#elif defined(__DARWIN__) && (defined(__i386__) || defined(__x86_64__))
-#ifdef DARWIN_MODERN_MCONTEXT
- mcontext_t mc = uc->uc_mcontext;
- pc = mc_pc(mc);
- mc->__fs.__fpu_mxcsr = 0x1F80;
- *(unsigned short *)&mc->__fs.__fpu_fsw &= ~0xFF;
-#else
- mcontext_t mc = uc->uc_mcontext;
- pc = mc_pc(mc);
- mc->fs.fpu_mxcsr = 0x1F80;
- *(unsigned short *)&mc->fs.fpu_fsw &= ~0xFF;
-#endif /* DARWIN_MODERN_MCONTEXT */
+# error "Floating-point exceptions not supported on MacOS X"
#elif defined(__DARWIN__) && defined(__ppc__)
mcontext_t mc = uc->uc_mcontext;
pc = mc->ss.srr0;