diff options
Diffstat (limited to 'gas/config/tc-alpha.c')
| -rw-r--r-- | gas/config/tc-alpha.c | 70 |
1 files changed, 48 insertions, 22 deletions
diff --git a/gas/config/tc-alpha.c b/gas/config/tc-alpha.c index 6a7116e..01e9bbd 100644 --- a/gas/config/tc-alpha.c +++ b/gas/config/tc-alpha.c @@ -5673,27 +5673,8 @@ alpha_align (n, pfill, label, force) if (pfill == NULL) { - if (n > 2 - && (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0) - { - static char const unop[4] = { 0x00, 0x00, 0xe0, 0x2f }; - static char const nopunop[8] = { - 0x1f, 0x04, 0xff, 0x47, - 0x00, 0x00, 0xe0, 0x2f - }; - - /* First, make sure we're on a four-byte boundary, in case - someone has been putting .byte values into the text - section. The DEC assembler silently fills with unaligned - no-op instructions. This will zero-fill, then nop-fill - with proper alignment. */ - if (alpha_current_align < 2) - frag_align (2, 0, 0); - if (alpha_current_align < 3) - frag_align_pattern (3, unop, sizeof unop, 0); - if (n > 3) - frag_align_pattern (n, nopunop, sizeof nopunop, 0); - } + if (subseg_text_p (now_seg)) + frag_align_code (n, 0); else frag_align (n, 0, 0); } @@ -5710,10 +5691,55 @@ alpha_align (n, pfill, label, force) record_alignment (now_seg, n); - /* ??? if alpha_flag_relax && force && elf, record the requested alignment + /* ??? If alpha_flag_relax && force && elf, record the requested alignment in a reloc for the linker to see. */ } +/* This is called from HANDLE_ALIGN in write.c. Fill in the contents + of an rs_align_code fragment. */ + +void +alpha_handle_align (fragp) + fragS *fragp; +{ + static char const unop[4] = { 0x00, 0x00, 0xe0, 0x2f }; + static char const nopunop[8] = { + 0x1f, 0x04, 0xff, 0x47, + 0x00, 0x00, 0xe0, 0x2f + }; + + int bytes, fix; + char *p; + + if (fragp->fr_type != rs_align_code) + return; + + bytes = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix; + p = fragp->fr_literal + fragp->fr_fix; + fix = 0; + + if (bytes & 3) + { + fix = bytes & 3; + memset (p, 0, fix); + p += fix; + bytes -= fix; + } + + if (bytes & 4) + { + memcpy (p, unop, 4); + p += 4; + bytes -= 4; + fix += 4; + } + + memcpy (p, nopunop, 8); + + fragp->fr_fix += fix; + fragp->fr_var = 8; +} + /* The Alpha has support for some VAX floating point types, as well as for IEEE floating point. We consider IEEE to be the primary floating point format, and sneak in the VAX floating point support here. */ |