该文件是rt_linux
源代码在线查看： binfmt_elf32.c
/* * Support for 32-bit Linux/Parisc ELF binaries on 64 bit kernels * * Copyright (C) 2000 John Marvin * Copyright (C) 2000 Hewlett Packard Co. * * Heavily inspired from various other efforts to do the same thing * (ia64,sparc64/mips64) */ /* Make sure include/asm-parisc/elf.h does the right thing */ #define ELF_CLASS ELFCLASS32 typedef unsigned int elf_greg_t; #include #include #include #include #include #include "sys32.h" /* struct timeval32 */ #define elf_prstatus elf_prstatus32 struct elf_prstatus32 { struct elf_siginfo pr_info; /* Info associated with signal */ short pr_cursig; /* Current signal */ unsigned int pr_sigpend; /* Set of pending signals */ unsigned int pr_sighold; /* Set of held signals */ pid_t pr_pid; pid_t pr_ppid; pid_t pr_pgrp; pid_t pr_sid; struct timeval32 pr_utime; /* User time */ struct timeval32 pr_stime; /* System time */ struct timeval32 pr_cutime; /* Cumulative user time */ struct timeval32 pr_cstime; /* Cumulative system time */ elf_gregset_t pr_reg; /* GP registers */ int pr_fpvalid; /* True if math co-processor being used. */ }; #define elf_prpsinfo elf_prpsinfo32 struct elf_prpsinfo32 { char pr_state; /* numeric process state */ char pr_sname; /* char for pr_state */ char pr_zomb; /* zombie */ char pr_nice; /* nice val */ unsigned int pr_flag; /* flags */ u16 pr_uid; u16 pr_gid; pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; /* Lots missing */ char pr_fname[16]; /* filename of executable */ char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ }; #define elf_addr_t unsigned int typedef unsigned int elf_caddr_t; #define init_elf_binfmt init_elf32_binfmt #define ELF_PLATFORM ("PARISC32\0") #define ELF_CORE_COPY_REGS(dst, pt) \ memset(dst, 0, sizeof(dst)); /* don't leak any "random" bits */ \ { int i; \ for (i = 0; i < 32; i++) dst[i] = (elf_greg_t) pt->gr[i]; \ for (i = 0; i < 8; i++) dst[32 + i] = (elf_greg_t) pt->sr[i]; \ } \ dst[40] = (elf_greg_t) pt->iaoq[0]; dst[41] = (elf_greg_t) pt->iaoq[1]; \ dst[42] = (elf_greg_t) pt->iasq[0]; dst[43] = (elf_greg_t) pt->iasq[1]; \ dst[44] = (elf_greg_t) pt->sar; dst[45] = (elf_greg_t) pt->iir; \ dst[46] = (elf_greg_t) pt->isr; dst[47] = (elf_greg_t) pt->ior; \ dst[48] = (elf_greg_t) mfctl(22); dst[49] = (elf_greg_t) mfctl(0); \ dst[50] = (elf_greg_t) mfctl(24); dst[51] = (elf_greg_t) mfctl(25); \ dst[52] = (elf_greg_t) mfctl(26); dst[53] = (elf_greg_t) mfctl(27); \ dst[54] = (elf_greg_t) mfctl(28); dst[55] = (elf_greg_t) mfctl(29); \ dst[56] = (elf_greg_t) mfctl(30); dst[57] = (elf_greg_t) mfctl(31); \ dst[58] = (elf_greg_t) mfctl( 8); dst[59] = (elf_greg_t) mfctl( 9); \ dst[60] = (elf_greg_t) mfctl(12); dst[61] = (elf_greg_t) mfctl(13); \ dst[62] = (elf_greg_t) mfctl(10); dst[63] = (elf_greg_t) mfctl(15); /* * We should probably use this macro to set a flag somewhere to indicate * this is a 32 on 64 process. We could use PER_LINUX_32BIT, or we * could set a processor dependent flag in the thread_struct. */ #define SET_PERSONALITY(ex, ibcs2) \ current->personality = PER_LINUX_32BIT #include "../../../fs/binfmt_elf.c"
