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/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_POWERPC_SYSCALLS_32_H
#define _ASM_POWERPC_SYSCALLS_32_H
#include <linux/compat.h>
#include <asm/siginfo.h>
#include <asm/signal.h>
/*
* Data types and macros for providing 32b PowerPC support.
*/
/* These are here to support 32-bit syscalls on a 64-bit kernel. */
struct pt_regs32 {
unsigned int gpr[32];
unsigned int nip;
unsigned int msr;
unsigned int orig_gpr3; /* Used for restarting system calls */
unsigned int ctr;
unsigned int link;
unsigned int xer;
unsigned int ccr;
unsigned int mq; /* 601 only (not used at present) */
unsigned int trap; /* Reason for being here */
unsigned int dar; /* Fault registers */
unsigned int dsisr;
unsigned int result; /* Result of a system call */
};
struct sigcontext32 {
unsigned int _unused[4];
int signal;
compat_uptr_t handler;
unsigned int oldmask;
compat_uptr_t regs; /* 4 byte pointer to the pt_regs32 structure. */
};
struct mcontext32 {
elf_gregset_t32 mc_gregs;
elf_fpregset_t mc_fregs;
unsigned int mc_pad[2];
elf_vrregset_t32 mc_vregs __attribute__((__aligned__(16)));
elf_vsrreghalf_t32 mc_vsregs __attribute__((__aligned__(16)));
};
struct ucontext32 {
unsigned int uc_flags;
unsigned int uc_link;
compat_stack_t uc_stack;
int uc_pad[7];
compat_uptr_t uc_regs; /* points to uc_mcontext field */
compat_sigset_t uc_sigmask; /* mask last for extensibility */
/* glibc has 1024-bit signal masks, ours are 64-bit */
int uc_maskext[30];
int uc_pad2[3];
struct mcontext32 uc_mcontext;
};
#endif // _ASM_POWERPC_SYSCALLS_32_H