From 7ccb84a91618eda626b12ce83d62cfe678cfc58f Mon Sep 17 00:00:00 2001
From: Timothy E Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Date: Thu, 12 May 2016 18:47:39 +0100
Subject: linux-user: Support for restarting system calls for M68K targets
Update the M68K main loop and sigreturn code:
* on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn
* set all guest CPU state within signal.c code on sigreturn
* handle TARGET_QEMU_ESIGRETURN in the main loop as the indication
that the main loop should not touch any guest CPU state
Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Message-id: 1441497448-32489-32-git-send-email-T.E.Baldwin99@members.leeds.ac.uk
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: tweak commit message; drop TARGET_USE_ERESTARTSYS define]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
---
linux-user/m68k/target_signal.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'linux-user/m68k')
diff --git a/linux-user/m68k/target_signal.h b/linux-user/m68k/target_signal.h
index 479758a..9deaa89 100644
--- a/linux-user/m68k/target_signal.h
+++ b/linux-user/m68k/target_signal.h
@@ -26,4 +26,5 @@ static inline abi_ulong get_sp_from_cpustate(CPUM68KState *state)
return state->aregs[7];
}
+
#endif /* TARGET_SIGNAL_H */
--
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