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Do not check sections without a LOAD attribute for overlap

This commit is contained in:
Nick Clifton 1999-11-23 14:13:07 +00:00
parent 96ac8957e8
commit 33275c22c0
2 changed files with 50 additions and 41 deletions
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6
ld/ChangeLog
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@ -1,3 +1,9 @@
1999-11-22 Nick Clifton <nickc@cygnus.com>
* ldlang.c (lang_check_section_addresses): Fix test to determine
if a section should be tested.
(IGNORE_SECTION): New macro.
Wed Nov 3 23:31:19 1999 Jeffrey A Law (law@cygnus.com)
* emultempl/elf32.em (gld${EMULATION_NAME}_open_dynamic_archive):

85
ld/ldlang.c
View File

@ -2608,6 +2608,10 @@ size_input_section (this_ptr, output_section_statement, fill, dot, relax)
return dot;
}
#define IGNORE_SECTION(bfd, s) \
(((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_LOAD)) == 0) \
|| bfd_section_size (bfd, s) == 0)
/* Check to see if any allocated sections overlap with other allocated
sections. This can happen when the linker script specifically specifies
the output section addresses of the two sections. */
@ -2618,49 +2622,48 @@ lang_check_section_addresses ()
/* Scan all sections in the output list. */
for (s = output_bfd->sections; s != NULL; s = s->next)
/* Ignore sections which are not loaded or which have no contents. */
if ((bfd_get_section_flags (output_bfd, s) & (SEC_ALLOC | SEC_LOAD))
&& bfd_section_size (output_bfd, s) != 0)
{
asection * os;
{
asection * os;
/* Ignore sections which are not loaded or which have no contents. */
if (IGNORE_SECTION (output_bfd, s))
continue;
/* Once we reach section 's' stop our seach. This prevents two
warning messages from being produced, one for 'section A overlaps
section B' and one for 'section B overlaps section A'. */
for (os = output_bfd->sections; os != s; os = os->next)
{
bfd_vma s_start;
bfd_vma s_end;
bfd_vma os_start;
bfd_vma os_end;
/* Only consider loadable sections with real contents. */
if (IGNORE_SECTION (output_bfd, os))
continue;
/* Once we reach section 's' stop our seach. This prevents two
warning messages from being produced, one for 'section A overlaps
section B' and one for 'section B overlaps section A'. */
for (os = output_bfd->sections; os != s; os = os->next)
{
bfd_vma s_start;
bfd_vma s_end;
bfd_vma os_start;
bfd_vma os_end;
/* Only consider loadable sections with real contents. */
if (((bfd_get_section_flags (output_bfd, os)
& (SEC_ALLOC | SEC_LOAD)) == 0)
|| bfd_section_size (output_bfd, os) == 0)
continue;
/* We must check the sections' LMA addresses not their
VMA addresses because overlay sections can have
overlapping VMAs but they must have distinct LMAs. */
s_start = bfd_section_lma (output_bfd, s);
os_start = bfd_section_lma (output_bfd, os);
s_end = s_start + bfd_section_size (output_bfd, s) - 1;
os_end = os_start + bfd_section_size (output_bfd, os) - 1;
/* Look for an overlap. */
if ((s_end < os_start) || (s_start > os_end))
continue;
einfo (
/* We must check the sections' LMA addresses not their
VMA addresses because overlay sections can have
overlapping VMAs but they must have distinct LMAs. */
s_start = bfd_section_lma (output_bfd, s);
os_start = bfd_section_lma (output_bfd, os);
s_end = s_start + bfd_section_size (output_bfd, s) - 1;
os_end = os_start + bfd_section_size (output_bfd, os) - 1;
/* Look for an overlap. */
if ((s_end < os_start) || (s_start > os_end))
continue;
einfo (
_("%X%P: section %s [%V -> %V] overlaps section %s [%V -> %V]\n"),
s->name, s_start, s_end, os->name, os_start, os_end);
/* Once we have found one overlap for this section,
stop looking for others. */
break;
}
}
s->name, s_start, s_end, os->name, os_start, os_end);
/* Once we have found one overlap for this section,
stop looking for others. */
break;
}
}
}
/* This variable indicates whether bfd_relax_section should be called