elf.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:3k
- #ifndef __ASMi386_ELF_H
- #define __ASMi386_ELF_H
- /*
- * ELF register definitions..
- */
- #include <asm/ptrace.h>
- #include <asm/user.h>
- #include <linux/utsname.h>
- typedef unsigned long elf_greg_t;
- #define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
- typedef elf_greg_t elf_gregset_t[ELF_NGREG];
- typedef struct user_i387_struct elf_fpregset_t;
- typedef struct user_fxsr_struct elf_fpxregset_t;
- /*
- * This is used to ensure we don't load something for the wrong architecture.
- */
- #define elf_check_arch(x)
- (((x)->e_machine == EM_386) || ((x)->e_machine == EM_486))
- /*
- * These are used to set parameters in the core dumps.
- */
- #define ELF_CLASS ELFCLASS32
- #define ELF_DATA ELFDATA2LSB
- #define ELF_ARCH EM_386
- /* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program starts %edx
- contains a pointer to a function which might be registered using `atexit'.
- This provides a mean for the dynamic linker to call DT_FINI functions for
- shared libraries that have been loaded before the code runs.
- A value of 0 tells we have no such handler.
- We might as well make sure everything else is cleared too (except for %esp),
- just to make things more deterministic.
- */
- #define ELF_PLAT_INIT(_r) do {
- _r->ebx = 0; _r->ecx = 0; _r->edx = 0;
- _r->esi = 0; _r->edi = 0; _r->ebp = 0;
- _r->eax = 0;
- } while (0)
- #define USE_ELF_CORE_DUMP
- #define ELF_EXEC_PAGESIZE 4096
- /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
- use of this is to invoke "./ld.so someprog" to test out a new version of
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
- #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
- /* Wow, the "main" arch needs arch dependent functions too.. :) */
- /* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
- now struct_user_regs, they are different) */
- #define ELF_CORE_COPY_REGS(pr_reg, regs)
- pr_reg[0] = regs->ebx;
- pr_reg[1] = regs->ecx;
- pr_reg[2] = regs->edx;
- pr_reg[3] = regs->esi;
- pr_reg[4] = regs->edi;
- pr_reg[5] = regs->ebp;
- pr_reg[6] = regs->eax;
- pr_reg[7] = regs->xds;
- pr_reg[8] = regs->xes;
- /* fake once used fs and gs selectors? */
- pr_reg[9] = regs->xds; /* was fs and __fs */
- pr_reg[10] = regs->xds; /* was gs and __gs */
- pr_reg[11] = regs->orig_eax;
- pr_reg[12] = regs->eip;
- pr_reg[13] = regs->xcs;
- pr_reg[14] = regs->eflags;
- pr_reg[15] = regs->esp;
- pr_reg[16] = regs->xss;
- /* This yields a mask that user programs can use to figure out what
- instruction set this CPU supports. This could be done in user space,
- but it's not easy, and we've already done it here. */
- #define ELF_HWCAP (boot_cpu_data.x86_capability[0])
- /* This yields a string that ld.so will use to load implementation
- specific libraries for optimization. This is more specific in
- intent than poking at uname or /proc/cpuinfo.
- For the moment, we have only optimizations for the Intel generations,
- but that could change... */
- #define ELF_PLATFORM (system_utsname.machine)
- #ifdef __KERNEL__
- #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
- #endif
- #endif