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| author | Jakub Jelinek <jakub@redhat.com> | 2004-10-04 13:41:15 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2004-10-04 13:41:15 +0000 |
| commit | a4f5ad884ecd1b56c973e0d562d97720140d1ec8 (patch) | |
| tree | 53f1cb3832ca29707b8bacd44f9ff14538fbbbce /ld/ld.texinfo | |
| parent | daab19f765f12cce4c9f73efaff8b8ba75a139b5 (diff) | |
| download | binutils-a4f5ad884ecd1b56c973e0d562d97720140d1ec8.tar.gz binutils-a4f5ad884ecd1b56c973e0d562d97720140d1ec8.tar.bz2 binutils-a4f5ad884ecd1b56c973e0d562d97720140d1ec8.zip | |
* ldgram.y (DATA_SEGMENT_RELRO_END): Add one argument.
* scripttempl/elf.sc (DATA_SEGMENT_RELRO_END): Add 0 as first
argument.
(DATA_SEGMENT_RELRO_GOTPLT_END): Pass $SEPARATE_GOTPLT as first
and . as second argument.
(GOTPLT): Move $DATA_SEGMENT_RELRO_GOTPLT_END before the section.
* ldexp.c (fold_unary): Remove DATA_SEGMENT_RELRO_END handling here.
(fold_binary): Add it here. Insert padding to make relro_end
COMMONPAGESIZE bytes aligned. For DATA_SEGMENT_ALIGN in
exp_dataseg_relro_adjust phase just use previously computed
exp_data_seg.base.
* ldlang.c (lang_size_sections): Set exp_data_seg.base for
relro_adjust here. Call lang_size_sections_1 once more if there
was too big padding at DATA_SEGMENT_RELRO_END.
* ld.texinfo (DATA_SEGMENT_RELRO_END): Add documentation.
Diffstat (limited to 'ld/ld.texinfo')
| -rw-r--r-- | ld/ld.texinfo | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/ld/ld.texinfo b/ld/ld.texinfo index 047933aaf0b..10134a648af 100644 --- a/ld/ld.texinfo +++ b/ld/ld.texinfo @@ -4545,6 +4545,21 @@ evaluation purposes. . = DATA_SEGMENT_END(.); @end smallexample +@item DATA_SEGMENT_RELRO_END(@var{offset}, @var{exp}) +@kindex DATA_SEGMENT_RELRO_END(@var{offset}, @var{exp}) +This defines the end of the @code{PT_GNU_RELRO} segment when +@samp{-z relro} option is used. Second argument is returned. +When @samp{-z relro} option is not present, @code{DATA_SEGMENT_RELRO_END} +does nothing, otherwise @code{DATA_SEGMENT_ALIGN} is padded so that +@var{exp} + @var{offset} is aligned to the most commonly used page +boundary for particular target. If present in the linker script, +it must always come in between @code{DATA_SEGMENT_ALIGN} and +@code{DATA_SEGMENT_END}. + +@smallexample + . = DATA_SEGMENT_RELRO_END(24, .); +@end smallexample + @item DEFINED(@var{symbol}) @kindex DEFINED(@var{symbol}) @cindex symbol defaults |