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Diffstat (limited to 'gas/doc/internals.texi')
| -rw-r--r-- | gas/doc/internals.texi | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/gas/doc/internals.texi b/gas/doc/internals.texi index 1d2313a..03162e0 100644 --- a/gas/doc/internals.texi +++ b/gas/doc/internals.texi @@ -1274,12 +1274,14 @@ You may define this macro to indicate whether a fixup against a locally defined symbol should be adjusted to be against the section symbol. It should return a non-zero value if the adjustment is acceptable. -@item MD_PCREL_FROM_SECTION +@item MD_PCREL_FROM_SECTION (@var{fixp}, @var{section}) @cindex MD_PCREL_FROM_SECTION -If you define this macro, it should return the offset between the address of a -PC relative fixup and the position from which the PC relative adjustment should -be made. On many processors, the base of a PC relative instruction is the next -instruction, so this macro would return the length of an instruction. +If you define this macro, it should return the position from which the PC +relative adjustment for a PC relative fixup should be made. On many +processors, the base of a PC relative instruction is the next instruction, +so this macro would return the length of an instruction, plus the address of +the PC relative fixup. The latter can be calculated as +@var{fixp}->fx_where + @var{fixp}->fx_frag->fr_address . @item md_pcrel_from @cindex md_pcrel_from |