linux-user/loader.h

   1 /*
   2  * loader.h: prototypes for linux-user guest binary loader
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; either version 2 of the License, or
   7  *  (at your option) any later version.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef LINUX_USER_LOADER_H
  19 #define LINUX_USER_LOADER_H
  20
  21 /*
  22  * Read a good amount of data initially, to hopefully get all the
  23  * program headers loaded.
  24  */
  25 #define BPRM_BUF_SIZE  1024
  26
  27 /*
  28  * This structure is used to hold the arguments that are
  29  * used when loading binaries.
  30  */
  31 struct linux_binprm {
  32         char buf[BPRM_BUF_SIZE] __attribute__((aligned));
  33         abi_ulong p;
  34         int fd;
  35         int e_uid, e_gid;
  36         int argc, envc;
  37         char **argv;
  38         char **envp;
  39         char *filename;        /* Name of binary */
  40         int (*core_dump)(int, const CPUArchState *); /* coredump routine */
  41 };
  42
  43 void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
  44 abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
  45                               abi_ulong stringp, int push_ptr);
  46 int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
  47              struct target_pt_regs *regs, struct image_info *infop,
  48              struct linux_binprm *);
  49
  50 uint32_t get_elf_eflags(int fd);
  51 int load_elf_binary(struct linux_binprm *bprm, struct image_info *info);
  52 int load_flt_binary(struct linux_binprm *bprm, struct image_info *info);
  53
  54 abi_long memcpy_to_target(abi_ulong dest, const void *src,
  55                           unsigned long len);
  56
  57 extern unsigned long guest_stack_size;
  58
  59 #endif /* LINUX_USER_LOADER_H */