binutils-gdb/ld/testsuite/ld-scripts/script.exp
Senthil Kumar Selvaraj cc9ad334a7 Allow symbols in MEMORY region specification
This patch fixes PR 4643 by allowing symbols in the LENGTH and ORIGIN
fields of MEMORY regions.  Previously, only constants and constant
expressions are allowed.

For the AVR target, this helps define memory constraints more
accurately (per device), without having to create a ton of device
specific linker scripts.

ld/
	PR 4643
	* ldexp.c (fold_name): Fold LENGTH only after
	lang_first_phase_enum.
	* ldgram.y (memory_spec): Don't evaluate ORIGIN and LENGTH
	rightaway.
	* ldlang.h (struct memory_region_struct): Add origin_exp and
	length_exp fields.
	* ldlang.c (lang_do_memory_regions): New.
	(lang_memory_region_lookup): Initialize origin_exp and
	length_exp fields.
	(lang_process): Call lang_do_memory_regions.
ld/testsuite/
	* ld-scripts/memory.t: Define new symbol tred.
	* ld-scripts/memory_sym.t: New.
	* ld-scripts/script.exp: Perform MEMORY with symbols test, and
	conditionally check values of linker symbols.
2015-01-28 15:06:48 +10:30

157 lines
4.0 KiB
Plaintext

# Test basic linker script functionality
# By Ian Lance Taylor, Cygnus Support
# Copyright (C) 1999-2015 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# 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.
set testname "script"
if ![ld_assemble $as $srcdir/$subdir/script.s tmpdir/script.o] {
unresolved $testname
return
}
proc check_script { } {
global nm
global testname
global nm_output
if ![ld_nm $nm "" tmpdir/script] {
unresolved $testname
return
}
if {![info exists nm_output(text_start)] \
|| ![info exists nm_output(text_end)] \
|| ![info exists nm_output(data_start)] \
|| ![info exists nm_output(data_end)]} {
send_log "bad output from nm\n"
verbose "bad output from nm"
fail $testname
return
}
set passes 1
set text_end 0x104
set data_end 0x1004
if [istarget *c4x*-*-*] then {
set text_end 0x101
set data_end 0x1001
}
if [istarget *c54x*-*-*] then {
set text_end 0x102
set data_end 0x1002
}
if {$nm_output(text_start) != 0x100} {
send_log "text_start == $nm_output(text_start)\n"
verbose "text_start == $nm_output(text_start)"
set passes 0
}
if {[info exists nm_output(tred)] \
&& $nm_output(tred) != (0x100 + 0x8000)} {
send_log "tred == $nm_output(tred)\n"
verbose "tred == $nm_output(tred)"
set passes 0
}
if {$nm_output(text_end) < $text_end \
|| $nm_output(text_end) > 0x110} {
send_log "text_end == $nm_output(text_end)\n"
verbose "text_end == $nm_output(text_end)"
set passes 0
}
if {$nm_output(data_start) != 0x1000} {
send_log "data_start == $nm_output(data_start)\n"
verbose "data_start == $nm_output(data_start)"
set passes 0
}
if {[info exists nm_output(fred)] \
&& $nm_output(fred) != (0x1000 + 0x10000)} {
send_log "fred == $nm_output(fred)\n"
verbose "fred == $nm_output(fred)"
set passes 0
}
if {$nm_output(data_end) < $data_end \
|| $nm_output(data_end) > 0x1010} {
send_log "data_end == $nm_output(data_end)\n"
verbose "data_end == $nm_output(data_end)"
set passes 0
}
if { $passes } {
pass $testname
} else {
fail $testname
}
}
# PE targets need to set the image base to 0 to avoid complications from nm.
set flags ""
if {[istarget "*-*-pe*"] \
|| [istarget "*-*-cygwin*"] \
|| [istarget "*-*-mingw*"] \
|| [istarget "*-*-winnt*"] \
|| [istarget "*-*-nt"] \
|| [istarget "*-*-interix*"] } then {
set flags "--image-base 0"
}
if ![ld_simple_link $ld tmpdir/script "$flags -T $srcdir/$subdir/script.t tmpdir/script.o"] {
fail $testname
} else {
check_script
}
set testname "MRI script"
if ![ld_simple_link $ld tmpdir/script "$flags -c $srcdir/$subdir/scriptm.t"] {
fail $testname
} else {
check_script
}
set testname "MEMORY"
if ![ld_simple_link $ld tmpdir/script "$flags -T $srcdir/$subdir/memory.t tmpdir/script.o"] {
fail $testname
} else {
check_script
}
set testname "MEMORY with symbols"
if ![ld_simple_link $ld tmpdir/script "$flags -defsym DATA_ORIGIN=0x1000 -defsym DATA_LENGTH=0x10000 -T $srcdir/$subdir/memory_sym.t tmpdir/script.o"] {
fail $testname
} else {
check_script
}
set test_script_list [lsort [glob $srcdir/$subdir/region-alias-*.t]]
foreach test_script $test_script_list {
run_dump_test [string range $test_script 0 end-2]
}
run_dump_test "align-with-input"