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@@ -0,0 +1,183 @@
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+From Binutils CVS:
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+
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+http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elf32-arm.c?rev=1.230&content-type=text/x-cvsweb-markup&cvsroot=src
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+
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+Improves linking time from large projects on ARM.
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+diff -dupr binutils-2.20.orig/bfd/elf32-arm.c binutils-2.20/bfd/elf32-arm.c
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+--- binutils-2.20.orig/bfd/elf32-arm.c 2010-04-19 10:08:50.000000000 -0700
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++++ binutils-2.20/bfd/elf32-arm.c 2010-04-19 10:12:45.000000000 -0700
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+@@ -12736,108 +12736,15 @@ elf32_arm_section_from_shdr (bfd *abfd,
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+ return TRUE;
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+ }
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+
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+-/* A structure used to record a list of sections, independently
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+- of the next and prev fields in the asection structure. */
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+-typedef struct section_list
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+-{
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+- asection * sec;
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+- struct section_list * next;
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+- struct section_list * prev;
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+-}
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+-section_list;
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+-
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+-/* Unfortunately we need to keep a list of sections for which
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+- an _arm_elf_section_data structure has been allocated. This
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+- is because it is possible for functions like elf32_arm_write_section
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+- to be called on a section which has had an elf_data_structure
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+- allocated for it (and so the used_by_bfd field is valid) but
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+- for which the ARM extended version of this structure - the
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+- _arm_elf_section_data structure - has not been allocated. */
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+-static section_list * sections_with_arm_elf_section_data = NULL;
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+-
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+-static void
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+-record_section_with_arm_elf_section_data (asection * sec)
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+-{
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+- struct section_list * entry;
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+-
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+- entry = bfd_malloc (sizeof (* entry));
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+- if (entry == NULL)
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+- return;
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+- entry->sec = sec;
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+- entry->next = sections_with_arm_elf_section_data;
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+- entry->prev = NULL;
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+- if (entry->next != NULL)
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+- entry->next->prev = entry;
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+- sections_with_arm_elf_section_data = entry;
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+-}
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+-
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+-static struct section_list *
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+-find_arm_elf_section_entry (asection * sec)
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+-{
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+- struct section_list * entry;
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+- static struct section_list * last_entry = NULL;
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+-
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+- /* This is a short cut for the typical case where the sections are added
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+- to the sections_with_arm_elf_section_data list in forward order and
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+- then looked up here in backwards order. This makes a real difference
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+- to the ld-srec/sec64k.exp linker test. */
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+- entry = sections_with_arm_elf_section_data;
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+- if (last_entry != NULL)
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+- {
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+- if (last_entry->sec == sec)
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+- entry = last_entry;
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+- else if (last_entry->next != NULL
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+- && last_entry->next->sec == sec)
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+- entry = last_entry->next;
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+- }
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+-
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+- for (; entry; entry = entry->next)
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+- if (entry->sec == sec)
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+- break;
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+-
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+- if (entry)
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+- /* Record the entry prior to this one - it is the entry we are most
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+- likely to want to locate next time. Also this way if we have been
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+- called from unrecord_section_with_arm_elf_section_data() we will not
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+- be caching a pointer that is about to be freed. */
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+- last_entry = entry->prev;
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+-
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+- return entry;
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+-}
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+-
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+ static _arm_elf_section_data *
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+ get_arm_elf_section_data (asection * sec)
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+ {
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+- struct section_list * entry;
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+-
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+- entry = find_arm_elf_section_entry (sec);
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+-
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+- if (entry)
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+- return elf32_arm_section_data (entry->sec);
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++ if (sec && sec->owner && is_arm_elf (sec->owner))
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++ return elf32_arm_section_data (sec);
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+ else
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+ return NULL;
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+ }
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+
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+-static void
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+-unrecord_section_with_arm_elf_section_data (asection * sec)
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+-{
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+- struct section_list * entry;
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+-
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+- entry = find_arm_elf_section_entry (sec);
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+-
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+- if (entry)
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+- {
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+- if (entry->prev != NULL)
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+- entry->prev->next = entry->next;
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+- if (entry->next != NULL)
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+- entry->next->prev = entry->prev;
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+- if (entry == sections_with_arm_elf_section_data)
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+- sections_with_arm_elf_section_data = entry->next;
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+- free (entry);
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+- }
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+-}
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+-
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+-
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+ typedef struct
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+ {
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+ void *finfo;
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+@@ -13230,8 +13137,6 @@ elf32_arm_new_section_hook (bfd *abfd, a
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+ sec->used_by_bfd = sdata;
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+ }
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+
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+- record_section_with_arm_elf_section_data (sec);
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+-
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+ return _bfd_elf_new_section_hook (abfd, sec);
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+ }
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+
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+@@ -13659,44 +13564,13 @@ elf32_arm_write_section (bfd *output_bfd
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+ }
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+
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+ free (map);
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+- arm_data->mapcount = 0;
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++ arm_data->mapcount = -1;
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+ arm_data->mapsize = 0;
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+ arm_data->map = NULL;
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+- unrecord_section_with_arm_elf_section_data (sec);
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+
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+ return FALSE;
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+ }
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+
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+-static void
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+-unrecord_section_via_map_over_sections (bfd * abfd ATTRIBUTE_UNUSED,
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+- asection * sec,
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+- void * ignore ATTRIBUTE_UNUSED)
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+-{
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+- unrecord_section_with_arm_elf_section_data (sec);
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+-}
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+-
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+-static bfd_boolean
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+-elf32_arm_close_and_cleanup (bfd * abfd)
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+-{
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+- if (abfd->sections)
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+- bfd_map_over_sections (abfd,
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+- unrecord_section_via_map_over_sections,
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+- NULL);
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+-
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+- return _bfd_elf_close_and_cleanup (abfd);
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+-}
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+-
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+-static bfd_boolean
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+-elf32_arm_bfd_free_cached_info (bfd * abfd)
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+-{
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+- if (abfd->sections)
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+- bfd_map_over_sections (abfd,
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+- unrecord_section_via_map_over_sections,
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+- NULL);
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+-
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+- return _bfd_free_cached_info (abfd);
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+-}
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+-
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+ /* Display STT_ARM_TFUNC symbols as functions. */
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+
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+ static void
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+@@ -13882,8 +13756,6 @@ const struct elf_size_info elf32_arm_siz
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+ #define bfd_elf32_find_inliner_info elf32_arm_find_inliner_info
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+ #define bfd_elf32_new_section_hook elf32_arm_new_section_hook
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+ #define bfd_elf32_bfd_is_target_special_symbol elf32_arm_is_target_special_symbol
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+-#define bfd_elf32_close_and_cleanup elf32_arm_close_and_cleanup
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+-#define bfd_elf32_bfd_free_cached_info elf32_arm_bfd_free_cached_info
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+ #define bfd_elf32_bfd_final_link elf32_arm_final_link
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+
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+ #define elf_backend_get_symbol_type elf32_arm_get_symbol_type
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Laine Walker-Avina