binfmt_elf32.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:4k
- /*
- * binfmt_elf32.c: Support 32-bit Sparc ELF binaries on Ultra.
- *
- * Copyright (C) 1995, 1996, 1997, 1998 David S. Miller (davem@redhat.com)
- * Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek (jj@ultra.linux.cz)
- */
- #define ELF_ARCH EM_SPARC
- #define ELF_CLASS ELFCLASS32
- #define ELF_DATA ELFDATA2MSB;
- /* For the most part we present code dumps in the format
- * Solaris does.
- */
- typedef unsigned int elf_greg_t;
- #define ELF_NGREG 38
- typedef elf_greg_t elf_gregset_t[ELF_NGREG];
- /* Format is:
- * G0 --> G7
- * O0 --> O7
- * L0 --> L7
- * I0 --> I7
- * PSR, PC, nPC, Y, WIM, TBR
- */
- #include <asm/psrcompat.h>
- #define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs)
- do { unsigned int *dest = &(__elf_regs[0]);
- struct pt_regs *src = (__pt_regs);
- unsigned int *sp;
- int i;
- for(i = 0; i < 16; i++)
- dest[i] = (unsigned int) src->u_regs[i];
- /* Don't try this at home kids... */
- set_fs(USER_DS);
- sp = (unsigned int *) (src->u_regs[14] &
- 0x00000000fffffffc);
- for(i = 0; i < 16; i++)
- __get_user(dest[i+16], &sp[i]);
- set_fs(KERNEL_DS);
- dest[32] = tstate_to_psr(src->tstate);
- dest[33] = (unsigned int) src->tpc;
- dest[34] = (unsigned int) src->tnpc;
- dest[35] = src->y;
- dest[36] = dest[37] = 0; /* XXX */
- } while(0);
- typedef struct {
- union {
- unsigned int pr_regs[32];
- unsigned long pr_dregs[16];
- } pr_fr;
- unsigned int __unused;
- unsigned int pr_fsr;
- unsigned char pr_qcnt;
- unsigned char pr_q_entrysize;
- unsigned char pr_en;
- unsigned int pr_q[64];
- } elf_fpregset_t;
- /* UltraSparc extensions. Still unused, but will be eventually. */
- typedef struct {
- unsigned int pr_type;
- unsigned int pr_align;
- union {
- struct {
- union {
- unsigned int pr_regs[32];
- unsigned long pr_dregs[16];
- long double pr_qregs[8];
- } pr_xfr;
- } pr_v8p;
- unsigned int pr_xfsr;
- unsigned int pr_fprs;
- unsigned int pr_xg[8];
- unsigned int pr_xo[8];
- unsigned long pr_tstate;
- unsigned int pr_filler[8];
- } pr_un;
- } elf_xregset_t;
- #define elf_check_arch(x) (((x)->e_machine == EM_SPARC) || ((x)->e_machine == EM_SPARC32PLUS))
- #define ELF_ET_DYN_BASE 0x08000000
- #include <asm/processor.h>
- #include <linux/module.h>
- #include <linux/config.h>
- #include <linux/elfcore.h>
- struct timeval32
- {
- int tv_sec, tv_usec;
- };
- #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 */
- };
- #include <linux/highuid.h>
- #undef NEW_TO_OLD_UID
- #undef NEW_TO_OLD_GID
- #define NEW_TO_OLD_UID(uid) ((uid) > 65535) ? (u16)overflowuid : (u16)(uid)
- #define NEW_TO_OLD_GID(gid) ((gid) > 65535) ? (u16)overflowgid : (u16)(gid)
- #define elf_addr_t u32
- #define elf_caddr_t u32
- #undef start_thread
- #define start_thread start_thread32
- #define init_elf_binfmt init_elf32_binfmt
- #undef CONFIG_BINFMT_ELF
- #ifdef CONFIG_BINFMT_ELF32
- #define CONFIG_BINFMT_ELF CONFIG_BINFMT_ELF32
- #endif
- #undef CONFIG_BINFMT_ELF_MODULE
- #ifdef CONFIG_BINFMT_ELF32_MODULE
- #define CONFIG_BINFMT_ELF_MODULE CONFIG_BINFMT_ELF32_MODULE
- #endif
- #define ELF_FLAGS_INIT current->thread.flags |= SPARC_FLAG_32BIT
- MODULE_DESCRIPTION("Binary format loader for compatibility with 32bit SparcLinux binaries on the Ultra");
- MODULE_AUTHOR("Eric Youngdale, David S. Miller, Jakub Jelinek");
- #undef MODULE_DESCRIPTION
- #undef MODULE_AUTHOR
- #include "../../../fs/binfmt_elf.c"