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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
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