/* * uClinux flat-format executables * * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au> * * This file is subject to the terms and conditions of the GNU General * Public License. See the file COPYING in the main directory of this * archive for more details. */ #ifndef _ASM_MICROBLAZE_FLAT_H #define _ASM_MICROBLAZE_FLAT_H #include <asm/unaligned.h> #define flat_argvp_envp_on_stack() 0 #define flat_old_ram_flag(flags) (flags) #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) #define flat_set_persistent(relval, p) 0 /* * Microblaze works a little differently from other arches, because * of the MICROBLAZE_64 reloc type. Here, a 32 bit address is split * over two instructions, an 'imm' instruction which provides the top * 16 bits, then the instruction "proper" which provides the low 16 * bits. */ /* * Crack open a symbol reference and extract the address to be * relocated. rp is a potentially unaligned pointer to the * reference */ static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags, u32 *addr, u32 *persistent) { u32 *p = (__force u32 *)rp; /* Is it a split 64/32 reference? */ if (relval & 0x80000000) { /* Grab the two halves of the reference */ u32 val_hi, val_lo; val_hi = get_unaligned(p); val_lo = get_unaligned(p+1); /* Crack the address out */ *addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff); } else { /* Get the address straight out */ *addr = get_unaligned(p); } return 0; } /* * Insert an address into the symbol reference at rp. rp is potentially * unaligned. */ static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 relval) { u32 *p = (__force u32 *)rp; /* Is this a split 64/32 reloc? */ if (relval & 0x80000000) { /* Get the two "halves" */ unsigned long val_hi = get_unaligned(p); unsigned long val_lo = get_unaligned(p + 1); /* insert the address */ val_hi = (val_hi & 0xffff0000) | addr >> 16; val_lo = (val_lo & 0xffff0000) | (addr & 0xffff); /* store the two halves back into memory */ put_unaligned(val_hi, p); put_unaligned(val_lo, p+1); } else { /* Put it straight in, no messing around */ put_unaligned(addr, p); } return 0; } #define flat_get_relocate_addr(rel) (rel & 0x7fffffff) #endif /* _ASM_MICROBLAZE_FLAT_H */
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Kbuild | File | 742 B | 0644 |
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asm-compat.h | File | 518 B | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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atomic.h | File | 626 B | 0644 |
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cache.h | File | 644 B | 0644 |
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cacheflush.h | File | 4.12 KB | 0644 |
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checksum.h | File | 942 B | 0644 |
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cmpxchg.h | File | 919 B | 0644 |
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cpuinfo.h | File | 2.13 KB | 0644 |
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cputable.h | File | 1 B | 0644 |
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current.h | File | 850 B | 0644 |
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delay.h | File | 2.26 KB | 0644 |
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dma-mapping.h | File | 765 B | 0644 |
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dma.h | File | 706 B | 0644 |
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elf.h | File | 738 B | 0644 |
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entry.h | File | 1.13 KB | 0644 |
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exceptions.h | File | 2.08 KB | 0644 |
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fixmap.h | File | 1.96 KB | 0644 |
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flat.h | File | 2.26 KB | 0644 |
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ftrace.h | File | 641 B | 0644 |
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futex.h | File | 2.13 KB | 0644 |
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hash.h | File | 2.37 KB | 0644 |
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highmem.h | File | 2.2 KB | 0644 |
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hw_irq.h | File | 1 B | 0644 |
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io.h | File | 2.05 KB | 0644 |
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irq.h | File | 538 B | 0644 |
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irqflags.h | File | 2.6 KB | 0644 |
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kgdb.h | File | 739 B | 0644 |
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mmu.h | File | 4.19 KB | 0644 |
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mmu_context.h | File | 141 B | 0644 |
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mmu_context_mm.h | File | 3.91 KB | 0644 |
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module.h | File | 840 B | 0644 |
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page.h | File | 6.11 KB | 0644 |
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pci-bridge.h | File | 4.57 KB | 0644 |
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pci.h | File | 2.47 KB | 0644 |
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pgalloc.h | File | 4.74 KB | 0644 |
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pgtable.h | File | 17.66 KB | 0644 |
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processor.h | File | 4.11 KB | 0644 |
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prom.h | File | 713 B | 0644 |
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ptrace.h | File | 727 B | 0644 |
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pvr.h | File | 8.72 KB | 0644 |
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registers.h | File | 1.65 KB | 0644 |
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seccomp.h | File | 256 B | 0644 |
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sections.h | File | 637 B | 0644 |
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setup.h | File | 1.37 KB | 0644 |
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string.h | File | 630 B | 0644 |
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switch_to.h | File | 629 B | 0644 |
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syscall.h | File | 2.26 KB | 0644 |
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thread_info.h | File | 4.01 KB | 0644 |
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timex.h | File | 402 B | 0644 |
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tlb.h | File | 714 B | 0644 |
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tlbflush.h | File | 2.04 KB | 0644 |
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uaccess.h | File | 9.98 KB | 0644 |
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unaligned.h | File | 871 B | 0644 |
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unistd.h | File | 1.19 KB | 0644 |
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unwind.h | File | 719 B | 0644 |
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user.h | File | 1 B | 0644 |
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