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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-i386/] [elf.h] - Blame information for rev 1774

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1 1275 phoenix
#ifndef __ASMi386_ELF_H
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#define __ASMi386_ELF_H
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/*
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 * ELF register definitions..
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 */
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#include <asm/ptrace.h>
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#include <asm/user.h>
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#include <linux/utsname.h>
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typedef unsigned long elf_greg_t;
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#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef struct user_i387_struct elf_fpregset_t;
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typedef struct user_fxsr_struct elf_fpxregset_t;
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/*
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 * This is used to ensure we don't load something for the wrong architecture.
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 */
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#define elf_check_arch(x) \
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        (((x)->e_machine == EM_386) || ((x)->e_machine == EM_486))
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/*
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 * These are used to set parameters in the core dumps.
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 */
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#define ELF_CLASS       ELFCLASS32
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#define ELF_DATA        ELFDATA2LSB
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#define ELF_ARCH        EM_386
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/* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program starts %edx
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   contains a pointer to a function which might be registered using `atexit'.
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   This provides a mean for the dynamic linker to call DT_FINI functions for
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   shared libraries that have been loaded before the code runs.
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   A value of 0 tells we have no such handler.
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   We might as well make sure everything else is cleared too (except for %esp),
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   just to make things more deterministic.
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 */
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#define ELF_PLAT_INIT(_r, load_addr)    do { \
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        _r->ebx = 0; _r->ecx = 0; _r->edx = 0; \
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        _r->esi = 0; _r->edi = 0; _r->ebp = 0; \
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        _r->eax = 0; \
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} while (0)
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE       4096
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/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
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   use of this is to invoke "./ld.so someprog" to test out a new version of
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   the loader.  We need to make sure that it is out of the way of the program
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   that it will "exec", and that there is sufficient room for the brk.  */
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#define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2)
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/* Wow, the "main" arch needs arch dependent functions too.. :) */
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/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
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   now struct_user_regs, they are different) */
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#define ELF_CORE_COPY_REGS(pr_reg, regs)                \
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        pr_reg[0] = regs->ebx;                           \
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        pr_reg[1] = regs->ecx;                          \
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        pr_reg[2] = regs->edx;                          \
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        pr_reg[3] = regs->esi;                          \
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        pr_reg[4] = regs->edi;                          \
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        pr_reg[5] = regs->ebp;                          \
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        pr_reg[6] = regs->eax;                          \
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        pr_reg[7] = regs->xds;                          \
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        pr_reg[8] = regs->xes;                          \
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        /* fake once used fs and gs selectors? */       \
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        pr_reg[9] = regs->xds;  /* was fs and __fs */   \
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        pr_reg[10] = regs->xds; /* was gs and __gs */   \
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        pr_reg[11] = regs->orig_eax;                    \
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        pr_reg[12] = regs->eip;                         \
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        pr_reg[13] = regs->xcs;                         \
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        pr_reg[14] = regs->eflags;                      \
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        pr_reg[15] = regs->esp;                         \
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        pr_reg[16] = regs->xss;
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/* This yields a mask that user programs can use to figure out what
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   instruction set this CPU supports.  This could be done in user space,
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   but it's not easy, and we've already done it here.  */
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#define ELF_HWCAP       (boot_cpu_data.x86_capability[0])
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/* This yields a string that ld.so will use to load implementation
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   specific libraries for optimization.  This is more specific in
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   intent than poking at uname or /proc/cpuinfo.
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   For the moment, we have only optimizations for the Intel generations,
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   but that could change... */
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#define ELF_PLATFORM  (system_utsname.machine)
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#ifdef __KERNEL__
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#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
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#endif
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#endif

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