diff options
Diffstat (limited to 'arch/s390/include/uapi/asm/ucontext.h')
| -rw-r--r-- | arch/s390/include/uapi/asm/ucontext.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/ucontext.h b/arch/s390/include/uapi/asm/ucontext.h new file mode 100644 index 000000000..c95f42e85 --- /dev/null +++ b/arch/s390/include/uapi/asm/ucontext.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * S390 version + * + * Derived from "include/asm-i386/ucontext.h" + */ + +#ifndef _ASM_S390_UCONTEXT_H +#define _ASM_S390_UCONTEXT_H + +#define UC_GPRS_HIGH 1 /* uc_mcontext_ext has valid high gprs */ +#define UC_VXRS 2 /* uc_mcontext_ext has valid vector regs */ + +/* + * The struct ucontext_extended describes how the registers are stored + * on a rt signal frame. Please note that the structure is not fixed, + * if new CPU registers are added to the user state the size of the + * struct ucontext_extended will increase. + */ +struct ucontext_extended { + unsigned long uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + _sigregs uc_mcontext; + sigset_t uc_sigmask; + /* Allow for uc_sigmask growth. Glibc uses a 1024-bit sigset_t. */ + unsigned char __unused[128 - sizeof(sigset_t)]; + _sigregs_ext uc_mcontext_ext; +}; + +struct ucontext { + unsigned long uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + _sigregs uc_mcontext; + sigset_t uc_sigmask; + /* Allow for uc_sigmask growth. Glibc uses a 1024-bit sigset_t. */ + unsigned char __unused[128 - sizeof(sigset_t)]; +}; + +#endif /* !_ASM_S390_UCONTEXT_H */ |