From 33275c22c0eebec8e2658eead8e6dda4fee33a50 Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Tue, 23 Nov 1999 14:13:07 +0000 Subject: [PATCH] Do not check sections without a LOAD attribute for overlap --- ld/ChangeLog | 6 ++++ ld/ldlang.c | 85 +++++++++++++++++++++++++++------------------------- 2 files changed, 50 insertions(+), 41 deletions(-) diff --git a/ld/ChangeLog b/ld/ChangeLog index 3bc5a895801..8a723c9430b 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,3 +1,9 @@ +1999-11-22 Nick Clifton + + * 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): diff --git a/ld/ldlang.c b/ld/ldlang.c index 33dc573c0d7..ad890d19998 100644 --- a/ld/ldlang.c +++ b/ld/ldlang.c @@ -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 -- 2.30.2