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linux-user/sparc/signal.c: Remove unnecessary comment

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Remove a comment suggesting that we need to call tb_flush()
after writing the SPARC signal frame trampoline insns.
This isn't necessary in QEMU, because (even if the guest
architecture requires explicit icache maintenance) we
ensure that memory writes result in invalidation of
translated code from that memory.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20181009184017.15675-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Peter Maydell 2018-10-09 19:40:17 +01:00 committed by Laurent Vivier
parent 850d5e330a
commit 6d5bb0b896
1 changed files with 0 additions and 4 deletions
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linux-user/sparc/signal.c
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@ -258,10 +258,6 @@ void setup_frame(int sig, struct target_sigaction *ka,
__put_user(val32, &sf->insns[1]);
if (err)
goto sigsegv;
/* Flush instruction space. */
// flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
// tb_flush(env);
}
unlock_user(sf, sf_addr, sizeof(struct target_signal_frame));
return;