7fe7231a49
Update the OpenRISC main loop code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state (We don't implement sigreturn on this target so there is no code there to update.) Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-31-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>
28 lines
547 B
C
28 lines
547 B
C
#ifndef TARGET_SIGNAL_H
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#define TARGET_SIGNAL_H
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#include "cpu.h"
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/* this struct defines a stack used during syscall handling */
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typedef struct target_sigaltstack {
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abi_long ss_sp;
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abi_ulong ss_size;
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abi_long ss_flags;
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} target_stack_t;
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/* sigaltstack controls */
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#define TARGET_SS_ONSTACK 1
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#define TARGET_SS_DISABLE 2
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#define TARGET_MINSIGSTKSZ 2048
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#define TARGET_SIGSTKSZ 8192
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static inline abi_ulong get_sp_from_cpustate(CPUOpenRISCState *state)
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{
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return state->gpr[1];
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}
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#endif /* TARGET_SIGNAL_H */
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