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| author | Alan Modra <amodra@bigpond.net.au> | 2007-05-11 06:39:05 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@bigpond.net.au> | 2007-05-11 06:39:05 +0000 |
| commit | c328533883522d5e18d6c87779217cdbf2e4a8e4 (patch) | |
| tree | 11efad41f05fdb4f08a5da36ccf3e43fabf7dab8 /ld/ld.texinfo | |
| parent | 0bea58b09c441665687506d1f2c309589d2e2c00 (diff) | |
| download | binutils-redhat-c328533883522d5e18d6c87779217cdbf2e4a8e4.tar.gz | |
bfd/
* elf32-ppc.h (ppc_elf_select_plt_layout): Update prototype.
(enum ppc_elf_plt_type): Move from..
* elf32-ppc.c: ..here.
(struct ppc_elf_obj_tdata): Add makes_plt_call and has_rel16.
(struct ppc_elf_link_hash_table): Reorder. Add old_bfd. Delete
can_use_new_plt. Make is_vxworks a bitfield.
(ppc_elf_link_hash_table_create): Don't clear is_vxworks (again).
(ppc_elf_check_relocs): Update setting of reloc flags. Set old_bfd.
(ppc_elf_select_plt_layout): Modify parameters. Use bfd reloc
flags to better detect object files needing old bss-style plt.
Allow secure plt to be used without rel16 relocs being detected.
Warn if secure plt request cannot be allowed.
ld/
* emultempl/ppc32elf.em (plt_style): New variable.
(old_plt): Delete.
(ppc_after_open): Adjust ppc_elf_select_plt_layout call.
(PARSE_AND_LIST_PROLOGUE): Define OPTION_NEW_PLT, renumber
OPTION_OLD_PLT, OPTION_OLD_GOT and OPTION_STUBSYMS.
(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add secure-plt.
(PARSE_AND_LIST_ARGS_CASES): Handle OPTION_NEW_PLT.
* ld.texinfo (--secure-plt): Document.
Diffstat (limited to 'ld/ld.texinfo')
| -rw-r--r-- | ld/ld.texinfo | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/ld/ld.texinfo b/ld/ld.texinfo index 788c515efc..700662eaa3 100644 --- a/ld/ld.texinfo +++ b/ld/ld.texinfo @@ -5699,6 +5699,14 @@ PLT, if all input files (including startup and static libraries) were compiled with @samp{-msecure-plt}. @samp{--bss-plt} forces the old BSS PLT (and GOT layout) which can give slightly better performance. +@kindex --secure-plt +@item --secure-plt +@command{ld} will use the new PLT and GOT layout if it is linking new +@samp{-fpic} or @samp{-fPIC} code, but does not do so automatically +when linking non-PIC code. This option requests the new PLT and GOT +layout. A warning will be given if some object file requires the old +style BSS PLT. + @cindex PowerPC GOT @kindex --sdata-got @item --sdata-got |