89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_SIGFRAME_H
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#define _ASM_X86_SIGFRAME_H
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#include <uapi/asm/sigcontext.h>
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#include <asm/siginfo.h>
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#include <asm/ucontext.h>
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#include <linux/compat.h>
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#ifdef CONFIG_X86_32
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#define sigframe_ia32 sigframe
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#define rt_sigframe_ia32 rt_sigframe
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#define ucontext_ia32 ucontext
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#else /* !CONFIG_X86_32 */
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#ifdef CONFIG_IA32_EMULATION
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#include <asm/ia32.h>
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#endif /* CONFIG_IA32_EMULATION */
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#endif /* CONFIG_X86_32 */
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#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
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struct sigframe_ia32 {
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u32 pretcode;
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int sig;
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struct sigcontext_32 sc;
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/*
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* fpstate is unused. fpstate is moved/allocated after
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* retcode[] below. This movement allows to have the FP state and the
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* future state extensions (xsave) stay together.
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* And at the same time retaining the unused fpstate, prevents changing
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* the offset of extramask[] in the sigframe and thus prevent any
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* legacy application accessing/modifying it.
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*/
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struct _fpstate_32 fpstate_unused;
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unsigned int extramask[1];
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char retcode[8];
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/* fp state follows here */
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};
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struct rt_sigframe_ia32 {
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u32 pretcode;
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int sig;
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u32 pinfo;
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u32 puc;
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#ifdef CONFIG_IA32_EMULATION
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compat_siginfo_t info;
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#else /* !CONFIG_IA32_EMULATION */
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struct siginfo info;
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#endif /* CONFIG_IA32_EMULATION */
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struct ucontext_ia32 uc;
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char retcode[8];
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/* fp state follows here */
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};
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#endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */
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#ifdef CONFIG_X86_64
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struct rt_sigframe {
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char __user *pretcode;
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struct ucontext uc;
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struct siginfo info;
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/* fp state follows here */
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};
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#ifdef CONFIG_X86_X32_ABI
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struct ucontext_x32 {
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unsigned int uc_flags;
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unsigned int uc_link;
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compat_stack_t uc_stack;
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unsigned int uc__pad0; /* needed for alignment */
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struct sigcontext uc_mcontext; /* the 64-bit sigcontext type */
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compat_sigset_t uc_sigmask; /* mask last for extensibility */
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};
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struct rt_sigframe_x32 {
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u64 pretcode;
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struct ucontext_x32 uc;
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compat_siginfo_t info;
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/* fp state follows here */
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};
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#endif /* CONFIG_X86_X32_ABI */
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#endif /* CONFIG_X86_64 */
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#endif /* _ASM_X86_SIGFRAME_H */
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