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Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 547c09a247f..cf08b12d149 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -1695,6 +1695,20 @@ pointer to which the function's data is relative. If vtables are used, the value of this macro should be the number of words that the function descriptor occupies. + +@findex TARGET_VTABLE_ENTRY_ALIGN +@item TARGET_VTABLE_ENTRY_ALIGN +By default, the vtable entries are void pointers, the so the alignment +is the same as pointer alignment. The value of this macro specifies +the alignment of the vtable entry in bits. It should be defined only +when special alignment is necessary. */ + +@findex TARGET_VTABLE_DATA_ENTRY_DISTANCE +@item TARGET_VTABLE_DATA_ENTRY_DISTANCE +There are a few non-descriptor entries in the vtable at offsets below +zero. If these entries must be padded (say, to preserve the alignment +specified by @code{TARGET_VTABLE_ENTRY_ALIGN}), set this to the number +of words in each data entry. @end table @node Escape Sequences |