github.com/afumu/libc@v0.0.6/musl/arch/x32/bits/user.h (about)

     1  #undef __WORDSIZE
     2  #define __WORDSIZE 64
     3  
     4  typedef struct user_fpregs_struct {
     5  	uint16_t cwd, swd, ftw, fop;
     6  	uint64_t rip, rdp;
     7  	uint32_t mxcsr, mxcr_mask;
     8  	uint32_t st_space[32], xmm_space[64], padding[24];
     9  } elf_fpregset_t;
    10  
    11  struct user_regs_struct {
    12  	unsigned long r15, r14, r13, r12, rbp, rbx, r11, r10, r9, r8;
    13  	unsigned long rax, rcx, rdx, rsi, rdi, orig_rax, rip;
    14  	unsigned long cs, eflags, rsp, ss, fs_base, gs_base, ds, es, fs, gs;
    15  };
    16  #define ELF_NGREG 27
    17  typedef unsigned long long elf_greg_t, elf_gregset_t[ELF_NGREG];
    18  
    19  struct user {
    20  	struct user_regs_struct		regs;
    21  	int				u_fpvalid;
    22  	struct user_fpregs_struct	i387;
    23  	unsigned long			u_tsize;
    24  	unsigned long			u_dsize;
    25  	unsigned long			u_ssize;
    26  	unsigned long			start_code;
    27  	unsigned long			start_stack;
    28  	long				signal;
    29  	int				reserved;
    30  	struct user_regs_struct		*u_ar0;
    31  	struct user_fpregs_struct	*u_fpstate;
    32  	unsigned long			magic;
    33  	char				u_comm[32];
    34  	unsigned long			u_debugreg[8];
    35  };
    36  
    37  #define PAGE_MASK		(~(PAGESIZE-1))
    38  #define NBPG			PAGESIZE
    39  #define UPAGES			1
    40  #define HOST_TEXT_START_ADDR	(u.start_code)
    41  #define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)