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6f52b16c5b
Many user space API headers are missing licensing information, which makes it hard for compliance tools to determine the correct license. By default are files without license information under the default license of the kernel, which is GPLV2. Marking them GPLV2 would exclude them from being included in non GPLV2 code, which is obviously not intended. The user space API headers fall under the syscall exception which is in the kernels COPYING file: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". otherwise syscall usage would not be possible. Update the files which contain no license information with an SPDX license identifier. The chosen identifier is 'GPL-2.0 WITH Linux-syscall-note' which is the officially assigned identifier for the Linux syscall exception. SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
72 lines
3.1 KiB
C
72 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _ASM_IA64_SIGCONTEXT_H
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#define _ASM_IA64_SIGCONTEXT_H
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/*
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* Copyright (C) 1998, 1999, 2001 Hewlett-Packard Co
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* Copyright (C) 1998, 1999, 2001 David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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#include <asm/fpu.h>
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#define IA64_SC_FLAG_ONSTACK_BIT 0 /* is handler running on signal stack? */
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#define IA64_SC_FLAG_IN_SYSCALL_BIT 1 /* did signal interrupt a syscall? */
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#define IA64_SC_FLAG_FPH_VALID_BIT 2 /* is state in f[32]-f[127] valid? */
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#define IA64_SC_FLAG_ONSTACK (1 << IA64_SC_FLAG_ONSTACK_BIT)
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#define IA64_SC_FLAG_IN_SYSCALL (1 << IA64_SC_FLAG_IN_SYSCALL_BIT)
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#define IA64_SC_FLAG_FPH_VALID (1 << IA64_SC_FLAG_FPH_VALID_BIT)
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# ifndef __ASSEMBLY__
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/*
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* Note on handling of register backing store: sc_ar_bsp contains the address that would
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* be found in ar.bsp after executing a "cover" instruction the context in which the
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* signal was raised. If signal delivery required switching to an alternate signal stack
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* (sc_rbs_base is not NULL), the "dirty" partition (as it would exist after executing the
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* imaginary "cover" instruction) is backed by the *alternate* signal stack, not the
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* original one. In this case, sc_rbs_base contains the base address of the new register
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* backing store. The number of registers in the dirty partition can be calculated as:
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*
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* ndirty = ia64_rse_num_regs(sc_rbs_base, sc_rbs_base + (sc_loadrs >> 16))
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*
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*/
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struct sigcontext {
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unsigned long sc_flags; /* see manifest constants above */
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unsigned long sc_nat; /* bit i == 1 iff scratch reg gr[i] is a NaT */
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stack_t sc_stack; /* previously active stack */
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unsigned long sc_ip; /* instruction pointer */
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unsigned long sc_cfm; /* current frame marker */
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unsigned long sc_um; /* user mask bits */
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unsigned long sc_ar_rsc; /* register stack configuration register */
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unsigned long sc_ar_bsp; /* backing store pointer */
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unsigned long sc_ar_rnat; /* RSE NaT collection register */
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unsigned long sc_ar_ccv; /* compare and exchange compare value register */
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unsigned long sc_ar_unat; /* ar.unat of interrupted context */
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unsigned long sc_ar_fpsr; /* floating-point status register */
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unsigned long sc_ar_pfs; /* previous function state */
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unsigned long sc_ar_lc; /* loop count register */
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unsigned long sc_pr; /* predicate registers */
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unsigned long sc_br[8]; /* branch registers */
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/* Note: sc_gr[0] is used as the "uc_link" member of ucontext_t */
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unsigned long sc_gr[32]; /* general registers (static partition) */
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struct ia64_fpreg sc_fr[128]; /* floating-point registers */
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unsigned long sc_rbs_base; /* NULL or new base of sighandler's rbs */
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unsigned long sc_loadrs; /* see description above */
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unsigned long sc_ar25; /* cmp8xchg16 uses this */
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unsigned long sc_ar26; /* rsvd for scratch use */
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unsigned long sc_rsvd[12]; /* reserved for future use */
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/*
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* The mask must come last so we can increase _NSIG_WORDS
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* without breaking binary compatibility.
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*/
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sigset_t sc_mask; /* signal mask to restore after handler returns */
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};
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# endif /* __ASSEMBLY__ */
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#endif /* _ASM_IA64_SIGCONTEXT_H */
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