mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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1a29ef8e97
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19815 3c298f89-4303-0410-b956-a3cf2f4a3e73
174 lines
5.6 KiB
C
174 lines
5.6 KiB
C
/*
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* arch/ubicom32/include/asm/elf.h
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* Definitions for elf executable format for Ubicom32 architecture.
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*
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* (C) Copyright 2009, Ubicom, Inc.
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*
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* This file is part of the Ubicom32 Linux Kernel Port.
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*
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* The Ubicom32 Linux Kernel Port is free software: you can redistribute
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* it and/or modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 2 of the
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* License, or (at your option) any later version.
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*
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* The Ubicom32 Linux Kernel Port is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the Ubicom32 Linux Kernel Port. If not,
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* see <http://www.gnu.org/licenses/>.
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*
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* Ubicom32 implementation derived from (with many thanks):
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* arch/m68knommu
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* arch/blackfin
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* arch/parisc
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*/
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#ifndef _ASM_UBICOM32_ELF_H
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#define _ASM_UBICOM32_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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/*
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* Processor specific flags for the ELF header e_flags field.
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*/
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#define EF_UBICOM32_V3 0x00000001 /* -fmarch=ubicom32v3 */
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#define EF_UBICOM32_V4 0x00000002 /* -fmarch=ubicom32v4 */
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#define EF_UBICOM32_PIC 0x80000000 /* -fpic */
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#define EF_UBICOM32_FDPIC 0x40000000 /* -mfdpic */
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/*
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* Ubicom32 ELF relocation types
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*/
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#define R_UBICOM32_NONE 0
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#define R_UBICOM32_16 1
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#define R_UBICOM32_32 2
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#define R_UBICOM32_LO16 3
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#define R_UBICOM32_HI16 4
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#define R_UBICOM32_21_PCREL 5
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#define R_UBICOM32_24_PCREL 6
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#define R_UBICOM32_HI24 7
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#define R_UBICOM32_LO7_S 8
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#define R_UBICOM32_LO7_2_S 9
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#define R_UBICOM32_LO7_4_S 10
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#define R_UBICOM32_LO7_D 11
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#define R_UBICOM32_LO7_2_D 12
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#define R_UBICOM32_LO7_4_D 13
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#define R_UBICOM32_32_HARVARD 14
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#define R_UBICOM32_LO7_CALLI 15
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#define R_UBICOM32_LO16_CALLI 16
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#define R_UBICOM32_GOT_HI24 17
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#define R_UBICOM32_GOT_LO7_S 18
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#define R_UBICOM32_GOT_LO7_2_S 19
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#define R_UBICOM32_GOT_LO7_4_S 20
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#define R_UBICOM32_GOT_LO7_D 21
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#define R_UBICOM32_GOT_LO7_2_D 22
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#define R_UBICOM32_GOT_LO7_4_D 23
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#define R_UBICOM32_FUNCDESC_GOT_HI24 24
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#define R_UBICOM32_FUNCDESC_GOT_LO7_S 25
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#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26
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#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27
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#define R_UBICOM32_FUNCDESC_GOT_LO7_D 28
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#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29
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#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30
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#define R_UBICOM32_GOT_LO7_CALLI 31
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#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32
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#define R_UBICOM32_FUNCDESC_VALUE 33
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#define R_UBICOM32_FUNCDESC 34
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#define R_UBICOM32_GOTOFFSET_LO 35
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#define R_UBICOM32_GOTOFFSET_HI 36
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#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37
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#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38
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#define R_UBICOM32_GNU_VTINHERIT 200
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#define R_UBICOM32_GNU_VTENTRY 201
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typedef unsigned long elf_greg_t;
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#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef struct user_ubicom32fp_struct elf_fpregset_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) ((x)->e_machine == EM_UBICOM32)
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#define elf_check_fdpic(x) ((x)->e_flags & EF_UBICOM32_FDPIC)
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#define elf_check_const_displacement(x) ((x)->e_flags & EF_UBICOM32_PIC)
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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 ELFDATA2MSB
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#define ELF_ARCH EM_UBICOM32
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/* For SVR4/m68k the function pointer to be registered with `atexit' is
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passed in %a1. Although my copy of the ABI has no such statement, it
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is actually used on ASV. */
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#define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0
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#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, \
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_dynamic_addr) \
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do { \
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_regs->dn[1] = _exec_map_addr; \
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_regs->dn[2] = _interp_map_addr; \
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_regs->dn[3] = _dynamic_addr; \
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_regs->an[1] = 0; /* dl_fini will be set by ldso */ \
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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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#ifdef __KERNEL__
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#ifdef CONFIG_UBICOM32_V4
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#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V4)
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#elif defined CONFIG_UBICOM32_V3
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#define ELF_FDPIC_CORE_EFLAGS (EF_UBICOM32_FDPIC | EF_UBICOM32_V3)
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#else
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#error Unknown/Unsupported ubicom32 architecture.
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#endif
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#endif
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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 0xD0000000UL
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/*
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* For Ubicom32, the elf_gregset_t and struct pt_regs are the same size
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* data structure so a copy is performed instead of providing the
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* ELF_CORE_COPY_REGS macro.
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*/
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/*
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* ELF_CORE_COPY_TASK_REGS is needed to dump register state from multi threaded user projects.
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*/
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extern int dump_task_regs(struct task_struct *, elf_gregset_t *);
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#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
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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. */
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#define ELF_HWCAP (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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#define ELF_PLATFORM (NULL)
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#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
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#endif /* _ASM_UBICOM32_ELF_H */
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