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authorNick Clifton <nickc@redhat.com>2007-02-21 16:43:50 +0000
committerNick Clifton <nickc@redhat.com>2007-02-21 16:43:50 +0000
commit2889e75bfb63b5638dffb3bf9ae598e85af86af9 (patch)
tree9168e9b39e394aadd1093391a9a676fdec981099 /ld
parent788594688132bc8f503e1b1345006e321a19c09a (diff)
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Take into account MEMORY regions when creating a segment map.
Diffstat (limited to 'ld')
-rw-r--r--ld/ChangeLog7
-rw-r--r--ld/ldlang.c36
-rw-r--r--ld/ldlang.h4
-rw-r--r--ld/ldmain.c3
4 files changed, 49 insertions, 1 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog
index cbe0544..7c6506b 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,10 @@
+2007-02-21 Nick Clifton <nickc@redhat.com>
+
+ * ldlang.c (ldlang_override_segment_assignment): New function.
+ * ldlang.h (ldlang_override_segment_assignment): Prototype.
+ * ldmain.c (link_callbacks): Add
+ ldlang_override_segment_assignment.
+
2007-02-20 Alan Modra <amodra@bigpond.net.au>
* ldexp.c (fold_name <LOADADDR>): Ensure result is always absolute.
diff --git a/ld/ldlang.c b/ld/ldlang.c
index 8a69c70..fa597f3 100644
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -4704,6 +4704,42 @@ lang_size_sections_1
return dot;
}
+/* Callback routine that is used in _bfd_elf_map_sections_to_segments. */
+
+bfd_boolean
+ldlang_override_segment_assignment (struct bfd_link_info * info ATTRIBUTE_UNUSED,
+ bfd * abfd ATTRIBUTE_UNUSED,
+ asection * current_section,
+ asection * previous_section,
+ bfd_boolean new_segment)
+{
+ lang_output_section_statement_type * cur;
+ lang_output_section_statement_type * prev;
+
+ if (new_segment)
+ return TRUE;
+
+ /* Paranoia checks. */
+ if (current_section == NULL || previous_section == NULL)
+ return new_segment;
+
+ /* Find the memory regions associated with the two sections.
+ We call lang_output_section_find() here rather than scanning the list
+ of output sections looking for a matching section pointer because if
+ we have a large number of sections a hash lookup is faster. */
+ cur = lang_output_section_find (current_section->name);
+ prev = lang_output_section_find (previous_section->name);
+
+ if (cur == NULL || prev == NULL)
+ return new_segment;
+
+ /* If the regions are different then force the sections to live in
+ different segments. See the email thread starting here for the
+ reasons why this is necessary:
+ http://sourceware.org/ml/binutils/2007-02/msg00216.html */
+ return cur->region != prev->region;
+}
+
void
one_lang_size_sections_pass (bfd_boolean *relax, bfd_boolean check_regions)
{
diff --git a/ld/ldlang.h b/ld/ldlang.h
index 0074159..d34ea68 100644
--- a/ld/ldlang.h
+++ b/ld/ldlang.h
@@ -623,4 +623,8 @@ extern void add_excluded_libs (const char *);
extern bfd_boolean load_symbols
(lang_input_statement_type *, lang_statement_list_type *);
+extern bfd_boolean
+ldlang_override_segment_assignment
+ (struct bfd_link_info *, bfd *, asection *, asection *, bfd_boolean);
+
#endif
diff --git a/ld/ldmain.c b/ld/ldmain.c
index 9e6a0c3..f47758f 100644
--- a/ld/ldmain.c
+++ b/ld/ldmain.c
@@ -161,7 +161,8 @@ static struct bfd_link_callbacks link_callbacks =
reloc_dangerous,
unattached_reloc,
notice,
- einfo
+ einfo,
+ ldlang_override_segment_assignment
};
struct bfd_link_info link_info;