9d3897630e
Add rt_sigframe_x32 to <asm/sigframe.h>. Unfortunately we can't just define all the data structures unconditionally, due to the #ifdef CONFIG_COMPAT in <linux/compat.h> and its trickle-down effects, hence the #ifdef mess. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
83 lines
2 KiB
C
83 lines
2 KiB
C
#ifndef _ASM_X86_SIGFRAME_H
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#define _ASM_X86_SIGFRAME_H
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#include <asm/sigcontext.h>
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#include <asm/siginfo.h>
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#include <asm/ucontext.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 sigcontext_ia32 sigcontext
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#define _fpstate_ia32 _fpstate
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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_ia32 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_ia32 fpstate_unused;
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#ifdef CONFIG_IA32_EMULATION
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unsigned int extramask[_COMPAT_NSIG_WORDS-1];
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#else /* !CONFIG_IA32_EMULATION */
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unsigned long extramask[_NSIG_WORDS-1];
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#endif /* CONFIG_IA32_EMULATION */
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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 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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