mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-23 14:42:26 +00:00
67 lines
2.9 KiB
Diff
67 lines
2.9 KiB
Diff
|
textrels are bad for forcing copy-on-write (this affects everyone),
|
||
|
|
and for security/runtime code generation, this affects security ppl.
|
||
|
|
But in either case, it doesn't matter who needs textrels, it's
|
||
|
|
the very fact that they're needed at all.
|
||
|
|
|
||
|
|
2006-06-10 Ned Ludd <solar@gentoo.org>, Mike Frysinger <vapier@gentoo.org>
|
||
|
|
|
||
|
|
* bfd/elflink.c (bfd_elf_final_link): Check all objects for TEXTRELs.
|
||
|
|
* ld/ldmain.c (main): Change textrel warning default to true.
|
||
|
|
* ld/testsuite/lib/ld-lib.exp (default_ld_simple_link): Scrub TEXTREL
|
||
|
|
warnings from ld output.
|
||
|
|
|
||
|
|
diff -durN binutils-2.20.1.orig/bfd/elflink.c binutils-2.20.1/bfd/elflink.c
|
||
|
|
--- binutils-2.20.1.orig/bfd/elflink.c 2010-08-17 19:32:11.000000000 +0200
|
||
|
|
+++ binutils-2.20.1/bfd/elflink.c 2010-08-17 19:32:13.000000000 +0200
|
||
|
|
@@ -10988,14 +10988,12 @@
|
||
|
|
goto error_return;
|
||
|
|
|
||
|
|
/* Check for DT_TEXTREL (late, in case the backend removes it). */
|
||
|
|
- if (info->warn_shared_textrel && info->shared)
|
||
|
|
+ o = bfd_get_section_by_name (dynobj, ".dynamic");
|
||
|
|
+ if (info->warn_shared_textrel && o != NULL)
|
||
|
|
{
|
||
|
|
bfd_byte *dyncon, *dynconend;
|
||
|
|
|
||
|
|
/* Fix up .dynamic entries. */
|
||
|
|
- o = bfd_get_section_by_name (dynobj, ".dynamic");
|
||
|
|
- BFD_ASSERT (o != NULL);
|
||
|
|
-
|
||
|
|
dyncon = o->contents;
|
||
|
|
dynconend = o->contents + o->size;
|
||
|
|
for (; dyncon < dynconend; dyncon += bed->s->sizeof_dyn)
|
||
|
|
@@ -11007,7 +11005,7 @@
|
||
|
|
if (dyn.d_tag == DT_TEXTREL)
|
||
|
|
{
|
||
|
|
info->callbacks->einfo
|
||
|
|
- (_("%P: warning: creating a DT_TEXTREL in a shared object.\n"));
|
||
|
|
+ (_("%P: warning: creating a DT_TEXTREL in object.\n"));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
diff -durN binutils-2.20.1.orig/ld/ldmain.c binutils-2.20.1/ld/ldmain.c
|
||
|
|
--- binutils-2.20.1.orig/ld/ldmain.c 2009-09-14 13:43:29.000000000 +0200
|
||
|
|
+++ binutils-2.20.1/ld/ldmain.c 2010-08-17 19:32:13.000000000 +0200
|
||
|
|
@@ -280,6 +280,7 @@
|
||
|
|
emulation = get_emulation (argc, argv);
|
||
|
|
ldemul_choose_mode (emulation);
|
||
|
|
default_target = ldemul_choose_target (argc, argv);
|
||
|
|
+ link_info.warn_shared_textrel = TRUE;
|
||
|
|
config.maxpagesize = bfd_emul_get_maxpagesize (default_target);
|
||
|
|
config.commonpagesize = bfd_emul_get_commonpagesize (default_target);
|
||
|
|
lang_init ();
|
||
|
|
diff -durN binutils-2.20.1.orig/ld/testsuite/lib/ld-lib.exp binutils-2.20.1/ld/testsuite/lib/ld-lib.exp
|
||
|
|
--- binutils-2.20.1.orig/ld/testsuite/lib/ld-lib.exp 2009-10-02 12:51:13.000000000 +0200
|
||
|
|
+++ binutils-2.20.1/ld/testsuite/lib/ld-lib.exp 2010-08-17 19:32:13.000000000 +0200
|
||
|
|
@@ -196,6 +196,10 @@
|
||
|
|
# symbol, since the default linker script might use ENTRY.
|
||
|
|
regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
|
||
|
|
|
||
|
|
+ # Gentoo tweak:
|
||
|
|
+ # We want to ignore TEXTREL warnings since we force enable them by default
|
||
|
|
+ regsub -all "^lt-ld-new: warning: creating a DT_TEXTREL in object\." $exec_output "\\1" exec_output
|
||
|
|
+
|
||
|
|
if [string match "" $exec_output] then {
|
||
|
|
return 1
|
||
|
|
} else {
|