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bfd/ChangeLog

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* elf32-avr.c: Add DIFF relocations for AVR.
	(avr_final_link_relocate): Handle the DIFF relocs.
	(bfd_elf_avr_diff_reloc): New.
	(elf32_avr_is_diff_reloc): New.
	(elf32_avr_adjust_diff_reloc_value): Reduce difference value.
	(elf32_avr_relax_delete_bytes): Recompute difference after deleting
	bytes.

	* reloc.c: Add BFD_RELOC_AVR_DIFF8/16/32 relocations

gas/ChangeLog

	* config/tc-avr.c: Add new flag mlink-relax.
	(md_show_usage): Add flag and help text.
	(md_parse_option): Record whether link relax is turned on.
	(relaxable_section): New.
	(avr_validate_fix_sub): New.
	(avr_force_relocation): New.
	(md_apply_fix): Generate DIFF reloc.
	(avr_allow_local_subtract): New.

	* config/tc-avr.h (TC_LINKRELAX_FIXUP): Define to 0.
	(TC_FORCE_RELOCATION): Define.
	(TC_FORCE_RELOCATION_SUB_SAME): Define.
	(TC_VALIDATE_FIX_SUB): Define.
	(avr_force_relocation): Declare.
	(avr_validate_fix_sub): Declare.
	(md_allow_local_subtract): Define.
	(avr_allow_local_subtract): Declare.

gas/testsuite/ChangeLog

	* gas/avr/diffreloc_withrelax.d: New testcase.
	* gas/avr/noreloc_withoutrelax.d: Likewise.
	* gas/avr/relax.s: Likewise.

include/ChangeLog

	* elf/avr.h: Add new DIFF relocs.

ld/testsuite/ChangeLog

	* ld-avr/norelax_diff.d: New testcase.
	* ld-avr/relax_diff.d: Likewise.
	* ld-avr/relax.s: Likewise.
This commit is contained in:
Denis Chertykov
2014-04-10 19:50:33 +04:00
parent 9d497a19ea
commit e4ef1b6c3f
17 changed files with 503 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
ld/testsuite/ChangeLog
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2014-04-10 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
* ld-avr/norelax_diff.d: New testcase.
* ld-avr/relax_diff.d: Likewise.
* ld-avr/relax.s: Likewise.
2014-04-05 Andreas Schwab <schwab@linux-m68k.org>
* ld-plugin/lto.exp: Make "-Wp," prefix optional when filtering

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# Copyright 2014
# Free Software Foundation, Inc.
# This program 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 3 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#
# Some AVR tests
#
if {![istarget avr-*-*]} {
return
}
set avr_test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
foreach avr_test $avr_test_list {
verbose [file rootname $avr_test]
run_dump_test [file rootname $avr_test]
}

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ld/testsuite/ld-avr/norelax_diff.d Normal file
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#name: AVR No change in behavior without relaxation
#as: -mmcu=avrxmega2
#ld: -mavrxmega2
#source: relax.s
#objdump: -s
#target: avr-*-*
.*: file format elf32-avr
Contents of section .text:
0000 0c940000 .*
Contents of section .data:
802000 0400 .*

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ld/testsuite/ld-avr/relax.s Normal file
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.file "relax.s"
.section .text,"ax",@progbits
main:
L1:
jmp L1
L2:
.global x
.section .data
.type x, @object
.size x, 2
x:
.word L2 - L1

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ld/testsuite/ld-avr/relax_diff.d Normal file
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#name: AVR Account for relaxation in label differences
#as: -mmcu=avrxmega2 -mlink-relax
#ld: -mavrxmega2 --relax
#source: relax.s
#objdump: -s
#target: avr-*-*
.*: file format elf32-avr
Contents of section .text:
0000 ffcf .*
Contents of section .data:
802000 0200 .*