9940799bde
Do not directly access ucontext_t as the third signal parameter. This is preparation for a sparc64 fix. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
38 lines
913 B
C
38 lines
913 B
C
/*
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* host-signal.h: signal info dependent on the host architecture
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*
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* Copyright (C) 2021 Linaro Limited
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef X86_64_HOST_SIGNAL_H
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#define X86_64_HOST_SIGNAL_H
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/* The third argument to a SA_SIGINFO handler is ucontext_t. */
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typedef ucontext_t host_sigcontext;
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static inline uintptr_t host_signal_pc(host_sigcontext *uc)
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{
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return uc->uc_mcontext.gregs[REG_RIP];
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}
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static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc)
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{
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uc->uc_mcontext.gregs[REG_RIP] = pc;
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}
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static inline void *host_signal_mask(host_sigcontext *uc)
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{
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return &uc->uc_sigmask;
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}
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static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc)
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{
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return uc->uc_mcontext.gregs[REG_TRAPNO] == 0xe
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&& (uc->uc_mcontext.gregs[REG_ERR] & 0x2);
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}
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#endif
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