mirror of
https://github.com/hedge-dev/XenonRecomp.git
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106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
#include "dis-asm.h"
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/* Get LENGTH bytes from info's buffer, at target address memaddr.
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Transfer them to myaddr. */
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int
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buffer_read_memory(bfd_vma memaddr, bfd_byte* myaddr, int length,
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struct disassemble_info* info)
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{
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if (memaddr < info->buffer_vma
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|| memaddr + length > info->buffer_vma + info->buffer_length)
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/* Out of bounds. Use EIO because GDB uses it. */
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return EIO;
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memcpy(myaddr, info->buffer + (memaddr - info->buffer_vma), length);
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return 0;
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}
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/* Print an error message. We can assume that this is in response to
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an error return from buffer_read_memory. */
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void
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perror_memory(int status, bfd_vma memaddr, struct disassemble_info* info)
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{
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if (status != EIO)
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/* Can't happen. */
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(*info->fprintf_func) (info->stream, "Unknown error %d\n", status);
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else
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/* Actually, address between memaddr and memaddr + len was
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out of bounds. */
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(*info->fprintf_func) (info->stream,
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"Address 0x%" PRIx64 " is out of bounds.\n", memaddr);
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}
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/* This could be in a separate file, to save miniscule amounts of space
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in statically linked executables. */
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/* Just print the address is hex. This is included for completeness even
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though both GDB and objdump provide their own (to print symbolic
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addresses). */
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void
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generic_print_address(bfd_vma addr, struct disassemble_info* info)
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{
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(*info->fprintf_func) (info->stream, "0x%" PRIx64, addr);
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}
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/* Just return the given address. */
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int
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generic_symbol_at_address(bfd_vma addr, struct disassemble_info* info)
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{
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return 1;
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}
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bfd_vma bfd_getl64(const bfd_byte* addr)
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{
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unsigned long long v;
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v = (unsigned long long) addr[0];
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v |= (unsigned long long) addr[1] << 8;
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v |= (unsigned long long) addr[2] << 16;
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v |= (unsigned long long) addr[3] << 24;
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v |= (unsigned long long) addr[4] << 32;
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v |= (unsigned long long) addr[5] << 40;
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v |= (unsigned long long) addr[6] << 48;
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v |= (unsigned long long) addr[7] << 56;
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return (bfd_vma)v;
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}
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bfd_vma bfd_getl32(const bfd_byte* addr)
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{
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unsigned long v;
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v = (unsigned long)addr[0];
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v |= (unsigned long)addr[1] << 8;
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v |= (unsigned long)addr[2] << 16;
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v |= (unsigned long)addr[3] << 24;
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return (bfd_vma)v;
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}
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bfd_vma bfd_getb32(const bfd_byte* addr)
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{
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unsigned long v;
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v = (unsigned long)addr[0] << 24;
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v |= (unsigned long)addr[1] << 16;
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v |= (unsigned long)addr[2] << 8;
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v |= (unsigned long)addr[3];
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return (bfd_vma)v;
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}
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bfd_vma bfd_getl16(const bfd_byte* addr)
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{
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unsigned long v;
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v = (unsigned long)addr[0];
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v |= (unsigned long)addr[1] << 8;
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return (bfd_vma)v;
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}
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bfd_vma bfd_getb16(const bfd_byte* addr)
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{
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unsigned long v;
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v = (unsigned long)addr[0] << 24;
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v |= (unsigned long)addr[1] << 16;
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return (bfd_vma)v;
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}
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