/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ASM_IA64_SIGCONTEXT_H #define _ASM_IA64_SIGCONTEXT_H /* * Copyright (C) 1998, 1999, 2001 Hewlett-Packard Co * Copyright (C) 1998, 1999, 2001 David Mosberger-Tang <davidm@hpl.hp.com> */ #include <asm/fpu.h> #define IA64_SC_FLAG_ONSTACK_BIT 0 /* is handler running on signal stack? */ #define IA64_SC_FLAG_IN_SYSCALL_BIT 1 /* did signal interrupt a syscall? */ #define IA64_SC_FLAG_FPH_VALID_BIT 2 /* is state in f[32]-f[127] valid? */ #define IA64_SC_FLAG_ONSTACK (1 << IA64_SC_FLAG_ONSTACK_BIT) #define IA64_SC_FLAG_IN_SYSCALL (1 << IA64_SC_FLAG_IN_SYSCALL_BIT) #define IA64_SC_FLAG_FPH_VALID (1 << IA64_SC_FLAG_FPH_VALID_BIT) # ifndef __ASSEMBLY__ /* * Note on handling of register backing store: sc_ar_bsp contains the address that would * be found in ar.bsp after executing a "cover" instruction the context in which the * signal was raised. If signal delivery required switching to an alternate signal stack * (sc_rbs_base is not NULL), the "dirty" partition (as it would exist after executing the * imaginary "cover" instruction) is backed by the *alternate* signal stack, not the * original one. In this case, sc_rbs_base contains the base address of the new register * backing store. The number of registers in the dirty partition can be calculated as: * * ndirty = ia64_rse_num_regs(sc_rbs_base, sc_rbs_base + (sc_loadrs >> 16)) * */ struct sigcontext { unsigned long sc_flags; /* see manifest constants above */ unsigned long sc_nat; /* bit i == 1 iff scratch reg gr[i] is a NaT */ stack_t sc_stack; /* previously active stack */ unsigned long sc_ip; /* instruction pointer */ unsigned long sc_cfm; /* current frame marker */ unsigned long sc_um; /* user mask bits */ unsigned long sc_ar_rsc; /* register stack configuration register */ unsigned long sc_ar_bsp; /* backing store pointer */ unsigned long sc_ar_rnat; /* RSE NaT collection register */ unsigned long sc_ar_ccv; /* compare and exchange compare value register */ unsigned long sc_ar_unat; /* ar.unat of interrupted context */ unsigned long sc_ar_fpsr; /* floating-point status register */ unsigned long sc_ar_pfs; /* previous function state */ unsigned long sc_ar_lc; /* loop count register */ unsigned long sc_pr; /* predicate registers */ unsigned long sc_br[8]; /* branch registers */ /* Note: sc_gr[0] is used as the "uc_link" member of ucontext_t */ unsigned long sc_gr[32]; /* general registers (static partition) */ struct ia64_fpreg sc_fr[128]; /* floating-point registers */ unsigned long sc_rbs_base; /* NULL or new base of sighandler's rbs */ unsigned long sc_loadrs; /* see description above */ unsigned long sc_ar25; /* cmp8xchg16 uses this */ unsigned long sc_ar26; /* rsvd for scratch use */ unsigned long sc_rsvd[12]; /* reserved for future use */ /* * The mask must come last so we can increase _NSIG_WORDS * without breaking binary compatibility. */ sigset_t sc_mask; /* signal mask to restore after handler returns */ }; # endif /* __ASSEMBLY__ */ #endif /* _ASM_IA64_SIGCONTEXT_H */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 152 | 82.16% | 1 | 14.29% |
| Linus Torvalds | 21 | 11.35% | 3 | 42.86% |
| David Mosberger-Tang | 11 | 5.95% | 2 | 28.57% |
| Greg Kroah-Hartman | 1 | 0.54% | 1 | 14.29% |
| Total | 185 | 100.00% | 7 | 100.00% |