ld/ChangeLog:

* ldlang.c (IGNORE_SECTION): Remove check for zero size.
        (lang_check_section_addresses): Ignore zero size sections here.
ld/testsuite/ChangeLog:
        * ld-scripts/empty-orphan.d, ld-scripts/empty-orphan.exp,
        ld-scripts/empty-orphan.s, ld-scripts/emtpy-orphan.t: New test.
This commit is contained in:
Bob Wilson 2005-03-17 16:20:39 +00:00
parent 2115ce97f8
commit de7f8cc8e0
7 changed files with 70 additions and 4 deletions

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@ -1,3 +1,9 @@
2005-03-16 David Heine <dlheine@tensilica.com>
Bob Wilson <bob.wilson@acm.org>
* ldlang.c (IGNORE_SECTION): Remove check for zero size.
(lang_check_section_addresses): Ignore zero size sections here.
2005-03-16 H.J. Lu <hongjiu.lu@intel.com>
* emultempl/elf32.em (gld${EMULATION_NAME}_finish): Remove

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@ -3300,8 +3300,7 @@ size_input_section
((s->flags & SEC_NEVER_LOAD) != 0 \
|| (s->flags & SEC_ALLOC) == 0 \
|| ((s->flags & SEC_THREAD_LOCAL) != 0 \
&& (s->flags & SEC_LOAD) == 0) \
|| s->size == 0)
&& (s->flags & SEC_LOAD) == 0))
/* Check to see if any allocated sections overlap with other allocated
sections. This can happen if a linker script specifies the output
@ -3318,7 +3317,7 @@ lang_check_section_addresses (void)
asection *os;
/* Ignore sections which are not loaded or which have no contents. */
if (IGNORE_SECTION (s))
if (IGNORE_SECTION (s) || s->size == 0)
continue;
/* Once we reach section 's' stop our seach. This prevents two
@ -3332,7 +3331,7 @@ lang_check_section_addresses (void)
bfd_vma os_end;
/* Only consider loadable sections with real contents. */
if (IGNORE_SECTION (os))
if (IGNORE_SECTION (os) || os->size == 0)
continue;
/* We must check the sections' LMA addresses not their

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@ -1,3 +1,9 @@
2005-03-16 David Heine <dlheine@tensilica.com>
Bob Wilson <bob.wilson@acm.org>
* ld-scripts/empty-orphan.d, ld-scripts/empty-orphan.exp,
ld-scripts/empty-orphan.s, ld-scripts/emtpy-orphan.t: New test.
2005-03-16 H.J. Lu <hongjiu.lu@intel.com>
* ld-cris/hiddef1.d: Updated for empty section removal.

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@ -0,0 +1,3 @@
#source: empty-orphan.s
#ld: -T empty-orphan.t
#error: no memory region specified for loadable section

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# Make sure orphan sections do not lead to huge output files.
# By David Heine, Tensilica, Inc.
# Copyright 2005
# Free Software Foundation, Inc.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# PHDRS is only meaningful for ELF.
if ![is_elf_format] {
return
}
set testname "empty-orphan"
run_dump_test empty-orphan

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@ -0,0 +1,4 @@
.section .orphan_data, "a"
# empty but defined
.section .data
.word 0x1111

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@ -0,0 +1,21 @@
MEMORY
{
default_mem : ORIGIN = 0x0, LENGTH = 0x100000
text_mem : ORIGIN = 0x60000000, LENGTH = 0x100
data_mem : ORIGIN = 0x70000000, LENGTH = 0x100
}
PHDRS
{
default_phdr PT_LOAD;
text_phdr PT_LOAD;
data_phdr PT_LOAD;
}
SECTIONS
{
.text : { *(.text) } > text_mem : text_phdr
.data : { *(.data) } > data_mem : data_phdr
.bss : { *(.bss) } > data_mem : data_phdr
/* .orphan_data is an orphan */
}