projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 5c2628e8 HS |
2 | #ifndef _ASM_X86_SIGFRAME_H |
| 3 | #define _ASM_X86_SIGFRAME_H | |
| 4 | ||
| decb4c41 | 5 | #include <uapi/asm/sigcontext.h> |
| b2fa739c HS |
6 | #include <asm/siginfo.h> |
| 7 | #include <asm/ucontext.h> | |
| b829d1be | 8 | #include <linux/compat.h> |
| b2fa739c | 9 | |
| 123a6347 | 10 | #ifdef CONFIG_X86_32 |
| a5c56eb3 HS |
11 | #define sigframe_ia32 sigframe |
| 12 | #define rt_sigframe_ia32 rt_sigframe | |
| a5c56eb3 | 13 | #define ucontext_ia32 ucontext |
| c85c2ff8 HS |
14 | #else /* !CONFIG_X86_32 */ |
| 15 | ||
| 16 | #ifdef CONFIG_IA32_EMULATION | |
| 17 | #include <asm/ia32.h> | |
| 18 | #endif /* CONFIG_IA32_EMULATION */ | |
| 19 | ||
| 20 | #endif /* CONFIG_X86_32 */ | |
| a5c56eb3 | 21 | |
| c85c2ff8 | 22 | #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) |
| a5c56eb3 HS |
23 | struct sigframe_ia32 { |
| 24 | u32 pretcode; | |
| 1da177e4 | 25 | int sig; |
| 8fcb346b | 26 | struct sigcontext_32 sc; |
| 3c1c7f10 SS |
27 | /* |
| 28 | * fpstate is unused. fpstate is moved/allocated after | |
| 29 | * retcode[] below. This movement allows to have the FP state and the | |
| 30 | * future state extensions (xsave) stay together. | |
| 31 | * And at the same time retaining the unused fpstate, prevents changing | |
| 32 | * the offset of extramask[] in the sigframe and thus prevent any | |
| 33 | * legacy application accessing/modifying it. | |
| 34 | */ | |
| 86e9fc3a | 35 | struct _fpstate_32 fpstate_unused; |
| c85c2ff8 HS |
36 | #ifdef CONFIG_IA32_EMULATION |
| 37 | unsigned int extramask[_COMPAT_NSIG_WORDS-1]; | |
| 38 | #else /* !CONFIG_IA32_EMULATION */ | |
| 1da177e4 | 39 | unsigned long extramask[_NSIG_WORDS-1]; |
| c85c2ff8 | 40 | #endif /* CONFIG_IA32_EMULATION */ |
| 1da177e4 | 41 | char retcode[8]; |
| 3c1c7f10 | 42 | /* fp state follows here */ |
| 1da177e4 LT |
43 | }; |
| 44 | ||
| a5c56eb3 HS |
45 | struct rt_sigframe_ia32 { |
| 46 | u32 pretcode; | |
| 1da177e4 | 47 | int sig; |
| a5c56eb3 HS |
48 | u32 pinfo; |
| 49 | u32 puc; | |
| c85c2ff8 HS |
50 | #ifdef CONFIG_IA32_EMULATION |
| 51 | compat_siginfo_t info; | |
| 52 | #else /* !CONFIG_IA32_EMULATION */ | |
| 1da177e4 | 53 | struct siginfo info; |
| c85c2ff8 | 54 | #endif /* CONFIG_IA32_EMULATION */ |
| a5c56eb3 | 55 | struct ucontext_ia32 uc; |
| 1da177e4 | 56 | char retcode[8]; |
| 3c1c7f10 | 57 | /* fp state follows here */ |
| 1da177e4 | 58 | }; |
| c85c2ff8 HS |
59 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */ |
| 60 | ||
| 61 | #ifdef CONFIG_X86_64 | |
| 9d389763 | 62 | |
| 123a6347 HH |
63 | struct rt_sigframe { |
| 64 | char __user *pretcode; | |
| 65 | struct ucontext uc; | |
| 66 | struct siginfo info; | |
| 3c1c7f10 | 67 | /* fp state follows here */ |
| 123a6347 | 68 | }; |
| 9d389763 PA |
69 | |
| 70 | #ifdef CONFIG_X86_X32_ABI | |
| 71 | ||
| b829d1be BG |
72 | struct ucontext_x32 { |
| 73 | unsigned int uc_flags; | |
| 74 | unsigned int uc_link; | |
| 75 | compat_stack_t uc_stack; | |
| 76 | unsigned int uc__pad0; /* needed for alignment */ | |
| 77 | struct sigcontext uc_mcontext; /* the 64-bit sigcontext type */ | |
| 78 | compat_sigset_t uc_sigmask; /* mask last for extensibility */ | |
| 79 | }; | |
| 80 | ||
| 9d389763 PA |
81 | struct rt_sigframe_x32 { |
| 82 | u64 pretcode; | |
| 83 | struct ucontext_x32 uc; | |
| 84 | compat_siginfo_t info; | |
| 85 | /* fp state follows here */ | |
| 86 | }; | |
| 87 | ||
| 88 | #endif /* CONFIG_X86_X32_ABI */ | |
| 89 | ||
| c85c2ff8 | 90 | #endif /* CONFIG_X86_64 */ |
| 5c2628e8 HS |
91 | |
| 92 | #endif /* _ASM_X86_SIGFRAME_H */ |