diff options
Diffstat (limited to 'gas/frags.c')
| -rw-r--r-- | gas/frags.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gas/frags.c b/gas/frags.c index f5a9d9e..f2f8cfe 100644 --- a/gas/frags.c +++ b/gas/frags.c @@ -322,6 +322,39 @@ frag_align_pattern (alignment, fill_pattern, n_fill, max) memcpy (p, fill_pattern, n_fill); } +/* The NOP_OPCODE is for the alignment fill value. Fill it with a nop + instruction so that the disassembler does not choke on it. */ +#ifndef NOP_OPCODE +#define NOP_OPCODE 0x00 +#endif + +/* Use this to restrict the amount of memory allocated for representing + the alignment code. Needs to be large enough to hold any fixed sized + prologue plus the replicating portion. */ +#ifndef MAX_MEM_FOR_RS_ALIGN_CODE + /* Assume that if HANDLE_ALIGN is not defined then no special action + is required to code fill, which means that we get just repeat the + one NOP_OPCODE byte. */ +# ifndef HANDLE_ALIGN +# define MAX_MEM_FOR_RS_ALIGN_CODE 1 +# else +# define MAX_MEM_FOR_RS_ALIGN_CODE ((1 << alignment) - 1) +# endif +#endif + +void +frag_align_code (alignment, max) + int alignment; + int max; +{ + char *p; + + p = frag_var (rs_align_code, MAX_MEM_FOR_RS_ALIGN_CODE, 1, + (relax_substateT) max, (symbolS *) 0, + (offsetT) alignment, (char *) 0); + *p = NOP_OPCODE; +} + addressT frag_now_fix_octets () { |