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Add support for -z nocopyreloc.

This commit is contained in:
Alan Modra 2001-10-03 15:11:48 +00:00
parent 181ddcac37
commit 8bd621d883
8 changed files with 34 additions and 2 deletions
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4
bfd/ChangeLog
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@ -1,3 +1,7 @@
2001-10-03 Vassili Karpov <malc@pulsesoft.com>
* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Handle nocopyreloc.
2001-10-03 Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
* elf64-mips.c (elf_backend_may_use_rela_p): New define.

7
bfd/elf32-i386.c
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@ -1127,6 +1127,13 @@ elf_i386_adjust_dynamic_symbol (info, h)
if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
return true;
/* If -z nocopyreloc was given, we won't generate them either. */
if (info->nocopyreloc)
{
h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
return true;
}
eh = (struct elf_i386_link_hash_entry *) h;
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{

4
include/ChangeLog
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@ -1,3 +1,7 @@
2001-10-03 Vassili Karpov <malc@pulsesoft.com>
* bfdlink.h (struct bfd_link_info): Add nocopyreloc field.
2001-09-24 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* libiberty.h (reconcat): New function.

4
include/bfdlink.h
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@ -294,6 +294,10 @@ struct bfd_link_info
and sorted so that relocs against the same symbol come together. */
boolean combreloc;
/* True if executable should not contain copy relocs.
Setting this true may result in a non-sharable text segment. */
boolean nocopyreloc;
/* How many spare .dynamic DT_NULL entries should be added? */
unsigned int spare_dynamic_tags;
};

6
ld/ChangeLog
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@ -1,3 +1,9 @@
2001-10-03 Vassili Karpov <malc@pulsesoft.com>
* emultempl/elf32.em (parse_args): Handle -z nocopyreloc.
* NEWS: Mention -z nocopyreloc.
* ld.texinfo (Options): Describe nocopyreloc.
2001-10-03 Alan Modra <amodra@bigpond.net.au>
* configure: Regenerate.

3
ld/NEWS
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@ -1,4 +1,7 @@
-*- text -*-
* Support for -z nocopyreloc in the x86 ELF linker, which disables
production of copy relocs. Warning: using this option may result in
non-sharable applications.
* Support for -z combreloc in the ELF linker, which puts dynamic
relocations against the same symbol together, so that dynamic linker

2
ld/emultempl/elf32.em
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@ -1517,6 +1517,8 @@ cat >>e${EMULATION_NAME}.c <<EOF
link_info.combreloc = true;
else if (strcmp (optarg, "nocombreloc") == 0)
link_info.combreloc = false;
else if (strcmp (optarg, "nocopyreloc") == 0)
link_info.nocopyreloc = true;
/* What about the other Solaris -z options? FIXME. */
break;
EOF

6
ld/ld.texinfo
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@ -840,8 +840,9 @@ for Solaris compatibility.
@item -z @var{keyword}
The recognized keywords are @code{initfirst}, @code{interpose},
@code{loadfltr}, @code{nodefaultlib}, @code{nodelete}, @code{nodlopen},
@code{nodump}, @code{now}, @code{origin}, @code{combreloc} and
@code{nocombreloc}. The other keywords are
@code{nodump}, @code{now}, @code{origin}, @code{combreloc}, @code{nocombreloc}
and @code{nocopyreloc}.
The other keywords are
ignored for Solaris compatibility. @code{initfirst} marks the object
to be initialized first at runtime before any other objects.
@code{interpose} marks the object that its symbol table interposes
@ -858,6 +859,7 @@ of this object will ignore any default library search paths.
@code{combreloc} combines multiple reloc sections and sorts them
to make dynamic symbol lookup caching possible.
@code{nocombreloc} disables multiple reloc sections combining.
@code{nocopyreloc} disables production of copy relocs.
@kindex -(
@cindex groups of archives