diff options
Diffstat (limited to 'bfd/cpu-powerpc.c')
| -rw-r--r-- | bfd/cpu-powerpc.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/bfd/cpu-powerpc.c b/bfd/cpu-powerpc.c index 4959467..6c54388 100644 --- a/bfd/cpu-powerpc.c +++ b/bfd/cpu-powerpc.c @@ -48,6 +48,43 @@ powerpc_compatible (const bfd_arch_info_type *a, /*NOTREACHED*/ } +/* Return a COUNT sized buffer filled with nops (if CODE is TRUE) or + zeros (if CODE is FALSE). This is the fill used between input + sections for alignment. It won't normally be executed. */ + +static void * +bfd_arch_ppc_nop_fill (bfd_size_type count, + bfd_boolean is_bigendian, + bfd_boolean code) +{ + bfd_byte *fill; + + if (count == 0) + return NULL; + fill = bfd_malloc (count); + if (fill == NULL) + return fill; + + if (code && (count & 3) == 0) + { + static const char nop_be[4] = {0x60, 0, 0, 0}; + static const char nop_le[4] = {0, 0, 0, 0x60}; + const char *nop = is_bigendian ? nop_be : nop_le; + bfd_byte *p = fill; + + while (count != 0) + { + memcpy (p, nop, 4); + p += 4; + count -= 4; + } + } + else + memset (fill, 0, count); + + return fill; +} + #define N(BITS, NUMBER, PRINT, DEFAULT, NEXT) \ { \ BITS, /* Bits in a word. */ \ @@ -61,7 +98,7 @@ powerpc_compatible (const bfd_arch_info_type *a, DEFAULT, \ powerpc_compatible, \ bfd_default_scan, \ - bfd_arch_default_fill, \ + bfd_arch_ppc_nop_fill, \ NEXT, \ 0 /* Maximum offset of a reloc from the start of an insn. */ \ } |