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Comment bfd_get_section_limit_octets and bfd_get_section_alloc_size

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* bfd.c (bfd_get_section_limit_octets): Add comment.
	(bfd_get_section_alloc_size): Likewise.
	* libbfd.c (_bfd_generic_get_section_contents): Use
	bfd_get_section_limit_octets.
	* section.c (bfd_get_section_contents): Likewise.
	* bfd-in2.h: Regenerate.
This commit is contained in:
Alan Modra
2022-12-18 13:04:13 +10:30
parent 3bbdb440d0
commit 20d8836e4a
4 changed files with 12 additions and 13 deletions
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5
bfd/bfd-in2.h
View File

@ -6946,6 +6946,8 @@ bfd_set_asymbol_name (asymbol *sy, const char *name)
sy->name = name; sy->name = name;
} }
/* For input sections return the original size on disk of the
section. For output sections return the current size. */
static inline bfd_size_type static inline bfd_size_type
bfd_get_section_limit_octets (const bfd *abfd, const asection *sec) bfd_get_section_limit_octets (const bfd *abfd, const asection *sec)
{ {
@ -6962,6 +6964,9 @@ bfd_get_section_limit (const bfd *abfd, const asection *sec)
/ bfd_octets_per_byte (abfd, sec)); / bfd_octets_per_byte (abfd, sec));
} }
/* For input sections return the larger of the current size and the
original size on disk of the section. For output sections return
the current size. */
static inline bfd_size_type static inline bfd_size_type
bfd_get_section_alloc_size (const bfd *abfd, const asection *sec) bfd_get_section_alloc_size (const bfd *abfd, const asection *sec)
{ {

5
bfd/bfd.c
View File

@ -502,6 +502,8 @@ CODE_FRAGMENT
. sy->name = name; . sy->name = name;
.} .}
. .
.{* For input sections return the original size on disk of the
. section. For output sections return the current size. *}
.static inline bfd_size_type .static inline bfd_size_type
.bfd_get_section_limit_octets (const bfd *abfd, const asection *sec) .bfd_get_section_limit_octets (const bfd *abfd, const asection *sec)
.{ .{
@ -518,6 +520,9 @@ CODE_FRAGMENT
. / bfd_octets_per_byte (abfd, sec)); . / bfd_octets_per_byte (abfd, sec));
.} .}
. .
.{* For input sections return the larger of the current size and the
. original size on disk of the section. For output sections return
. the current size. *}
.static inline bfd_size_type .static inline bfd_size_type
.bfd_get_section_alloc_size (const bfd *abfd, const asection *sec) .bfd_get_section_alloc_size (const bfd *abfd, const asection *sec)
.{ .{

10
bfd/libbfd.c
View File

@ -943,15 +943,7 @@ _bfd_generic_get_section_contents (bfd *abfd,
return false; return false;
} }
/* We do allow reading of a section after bfd_final_link has sz = bfd_get_section_limit_octets (abfd, section);
written the contents out to disk. In that situation, rawsize is
just a stale version of size, so ignore it. Otherwise we must be
reading an input section, where rawsize, if different to size,
is the on-disk size. */
if (abfd->direction != write_direction && section->rawsize != 0)
sz = section->rawsize;
else
sz = section->size;
if (offset + count < count if (offset + count < count
|| offset + count > sz || offset + count > sz
|| (abfd->my_archive != NULL || (abfd->my_archive != NULL

5
bfd/section.c
View File

@ -1550,10 +1550,7 @@ bfd_get_section_contents (bfd *abfd,
return true; return true;
} }
if (abfd->direction != write_direction && section->rawsize != 0) sz = bfd_get_section_limit_octets (abfd, section);
sz = section->rawsize;
else
sz = section->size;
if ((bfd_size_type) offset > sz if ((bfd_size_type) offset > sz
|| count > sz - offset || count > sz - offset
|| count != (size_t) count) || count != (size_t) count)