qemu/linux-user/xtensa/target_signal.h
Andreas Schwab 513823e752 linux-user: Move TARGET_SA_RESTORER out of generic/signal.h
SA_RESTORER and the associated sa_restorer field of struct sigaction are
an obsolete feature, not expected to be used by future architectures.
They are also absent on RISC-V, LoongArch, Hexagon and OpenRISC, but
defined due to their use of generic/signal.h.  This leads to corrupted
data and out-of-bounds accesses.

Move the definition of TARGET_SA_RESTORER out of generic/signal.h into the
target_signal.h files that need it.  Note that m68k has the sa_restorer
field, but does not use it and does not define SA_RESTORER.

Reported-by: Thomas Weißschuh <thomas@t-8ch.de>
Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Thomas Weißschuh <thomas@t-8ch.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <mvmed060xc9.fsf@suse.de>
2025-02-18 08:29:03 -08:00

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C

#ifndef XTENSA_TARGET_SIGNAL_H
#define XTENSA_TARGET_SIGNAL_H
#include "../generic/signal.h"
#define TARGET_SA_RESTORER 0x04000000
#define TARGET_ARCH_HAS_SIGTRAMP_PAGE 1
#endif