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/*
 * Copyright 2010 Tilera Corporation. All Rights Reserved.
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   This program is distributed in the hope that it will be useful, but
 *   WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 *   NON INFRINGEMENT.  See the GNU General Public License for
 *   more details.
 */

#ifndef _ASM_TILE_ELF_H
#define _ASM_TILE_ELF_H

/*
 * ELF register definitions.
 */

#include <arch/chip.h>

#include <linux/ptrace.h>
#include <linux/elf-em.h>
#include <asm/byteorder.h>
#include <asm/page.h>

typedef unsigned long elf_greg_t;

#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];

/* Provide a nominal data structure. */
#define ELF_NFPREG	0
typedef double elf_fpreg_t;
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];

#ifdef __tilegx__
#define ELF_CLASS	ELFCLASS64
#else
#define ELF_CLASS	ELFCLASS32
#endif
#ifdef __BIG_ENDIAN__
#define ELF_DATA	ELFDATA2MSB
#else
#define ELF_DATA	ELFDATA2LSB
#endif

/*
 * There seems to be a bug in how compat_binfmt_elf.c works: it
 * #undefs ELF_ARCH, but it is then used in binfmt_elf.c for fill_note_info().
 * Hack around this by providing an enum value of ELF_ARCH.
 */
enum { ELF_ARCH = CHIP_ELF_TYPE() };
#define ELF_ARCH ELF_ARCH

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
#define elf_check_arch(x)  \
	((x)->e_ident[EI_CLASS] == ELF_CLASS && \
	 (x)->e_ident[EI_DATA] == ELF_DATA && \
	 (x)->e_machine == CHIP_ELF_TYPE())

/* The module loader only handles a few relocation types. */
#ifndef __tilegx__
#define R_TILE_32                 1
#define R_TILE_JOFFLONG_X1       15
#define R_TILE_IMM16_X0_LO       25
#define R_TILE_IMM16_X1_LO       26
#define R_TILE_IMM16_X0_HA       29
#define R_TILE_IMM16_X1_HA       30
#else
#define R_TILEGX_64                       1
#define R_TILEGX_JUMPOFF_X1              21
#define R_TILEGX_IMM16_X0_HW0            36
#define R_TILEGX_IMM16_X1_HW0            37
#define R_TILEGX_IMM16_X0_HW1            38
#define R_TILEGX_IMM16_X1_HW1            39
#define R_TILEGX_IMM16_X0_HW2_LAST       48
#define R_TILEGX_IMM16_X1_HW2_LAST       49
#endif

/* Use standard page size for core dumps. */
#define ELF_EXEC_PAGESIZE	PAGE_SIZE

/*
 * 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)

#define ELF_CORE_COPY_REGS(_dest, _regs)			\
	memcpy((char *) &_dest, (char *) _regs,			\
	       sizeof(struct pt_regs));

/* No additional FP registers to copy. */
#define ELF_CORE_COPY_FPREGS(t, fpu) 0

/*
 * 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	(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.
 */
#define ELF_PLATFORM  (NULL)

extern void elf_plat_init(struct pt_regs *regs, unsigned long load_addr);

#define ELF_PLAT_INIT(_r, load_addr) elf_plat_init(_r, load_addr)

extern int dump_task_regs(struct task_struct *, elf_gregset_t *);
#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)

/* Tilera Linux has no personalities currently, so no need to do anything. */
#define SET_PERSONALITY(ex) do { } while (0)

#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
/* Support auto-mapping of the user interrupt vectors. */
struct linux_binprm;
extern int arch_setup_additional_pages(struct linux_binprm *bprm,
				       int executable_stack);
/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
#define ARCH_DLINFO \
do { \
	NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \
} while (0)

struct mm_struct;
extern unsigned long arch_randomize_brk(struct mm_struct *mm);
#define arch_randomize_brk arch_randomize_brk

#ifdef CONFIG_COMPAT

#define COMPAT_ELF_PLATFORM "tilegx-m32"

/*
 * "Compat" binaries have the same machine type, but 32-bit class,
 * since they're not a separate machine type, but just a 32-bit
 * variant of the standard 64-bit architecture.
 */
#define compat_elf_check_arch(x)  \
	((x)->e_ident[EI_CLASS] == ELFCLASS32 && \
	 (x)->e_machine == CHIP_ELF_TYPE())

#define compat_start_thread(regs, ip, usp) do { \
		regs->pc = ptr_to_compat_reg((void *)(ip)); \
		regs->sp = ptr_to_compat_reg((void *)(usp)); \
		single_step_execve();	\
	} while (0)

/*
 * Use SET_PERSONALITY to indicate compatibility via TS_COMPAT.
 */
#undef SET_PERSONALITY
#define SET_PERSONALITY(ex) \
do { \
	set_personality(PER_LINUX | (current->personality & (~PER_MASK))); \
	current_thread_info()->status &= ~TS_COMPAT; \
} while (0)
#define COMPAT_SET_PERSONALITY(ex) \
do { \
	set_personality(PER_LINUX | (current->personality & (~PER_MASK))); \
	current_thread_info()->status |= TS_COMPAT; \
} while (0)

#define COMPAT_ELF_ET_DYN_BASE (0xffffffff / 3 * 2)

#endif /* CONFIG_COMPAT */

#define CORE_DUMP_USE_REGSET

#endif /* _ASM_TILE_ELF_H */

Filemanager

Name Type Size Permission Actions
Kbuild File 439 B 0644
asm-offsets.h File 35 B 0644
atomic.h File 5.14 KB 0644
atomic_32.h File 8.91 KB 0644
atomic_64.h File 5.51 KB 0644
backtrace.h File 3.98 KB 0644
barrier.h File 2.89 KB 0644
bitops.h File 2.37 KB 0644
bitops_32.h File 4.01 KB 0644
bitops_64.h File 2.67 KB 0644
cache.h File 2.6 KB 0644
cacheflush.h File 4.94 KB 0644
checksum.h File 1.23 KB 0644
cmpxchg.h File 3.47 KB 0644
compat.h File 7.38 KB 0644
current.h File 947 B 0644
delay.h File 1.1 KB 0644
device.h File 978 B 0644
div64.h File 319 B 0644
dma-mapping.h File 1.82 KB 0644
dma.h File 762 B 0644
elf.h File 5.42 KB 0644
fixmap.h File 2.73 KB 0644
ftrace.h File 1.08 KB 0644
futex.h File 4.23 KB 0644
hardirq.h File 1.28 KB 0644
hardwall.h File 1.08 KB 0644
highmem.h File 2.08 KB 0644
homecache.h File 4.21 KB 0644
hugetlb.h File 3.04 KB 0644
hv_driver.h File 1.92 KB 0644
ide.h File 758 B 0644
insn.h File 1.79 KB 0644
io.h File 12.43 KB 0644
irq.h File 3.11 KB 0644
irq_work.h File 283 B 0644
irqflags.h File 10.55 KB 0644
jump_label.h File 1.47 KB 0644
kdebug.h File 769 B 0644
kexec.h File 2.23 KB 0644
kgdb.h File 1.99 KB 0644
kmap_types.h File 1.02 KB 0644
kprobes.h File 2.19 KB 0644
linkage.h File 1.46 KB 0644
mmu.h File 965 B 0644
mmu_context.h File 4.5 KB 0644
mmzone.h File 2.07 KB 0644
module.h File 1.12 KB 0644
page.h File 10.32 KB 0644
pci.h File 6.58 KB 0644
percpu.h File 1.79 KB 0644
perf_event.h File 766 B 0644
pgalloc.h File 4.76 KB 0644
pgtable.h File 15.66 KB 0644
pgtable_32.h File 4.08 KB 0644
pgtable_64.h File 5.11 KB 0644
pmc.h File 2.15 KB 0644
processor.h File 10.62 KB 0644
ptrace.h File 2.96 KB 0644
sections.h File 1.37 KB 0644
setup.h File 1.63 KB 0644
sigframe.h File 956 B 0644
signal.h File 1.07 KB 0644
smp.h File 3.98 KB 0644
spinlock.h File 741 B 0644
spinlock_32.h File 2.9 KB 0644
spinlock_64.h File 3.88 KB 0644
spinlock_types.h File 1.58 KB 0644
stack.h File 2.59 KB 0644
string.h File 1.19 KB 0644
switch_to.h File 2.75 KB 0644
syscall.h File 2.88 KB 0644
syscalls.h File 2.35 KB 0644
thread_info.h File 5.54 KB 0644
tile-desc.h File 650 B 0644
tile-desc_32.h File 12.54 KB 0644
tile-desc_64.h File 10.83 KB 0644
timex.h File 1.71 KB 0644
tlb.h File 878 B 0644
tlbflush.h File 3.99 KB 0644
topology.h File 1.52 KB 0644
traps.h File 2.44 KB 0644
uaccess.h File 12.77 KB 0644
unaligned.h File 1.56 KB 0644
unistd.h File 777 B 0644
user.h File 717 B 0644
vdso.h File 1.84 KB 0644
vga.h File 1.05 KB 0644
word-at-a-time.h File 1.07 KB 0644