# Test NOCROSSREFS in a linker script.
# By Ian Lance Taylor, Cygnus Support.
+# Copyright (C) 2000-2016 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 "NOCROSSREFS"
+set test1 "NOCROSSREFS 1"
+set test2 "NOCROSSREFS 2"
+set test3 "NOCROSSREFS 3"
-if { [which $CC] == 0 } {
- untested $testname
+if { ![is_remote host] && [which $CC] == 0 } {
+ untested $test1
+ untested $test2
+ untested $test3
return
}
+global CFLAGS
+set old_CFLAGS "$CFLAGS"
+
+# Pass -fplt to CC since -fno-plt doesn't work with NOCROSSREFS tests.
+global PLT_CFLAGS
+set old_CC "$CC"
+set CC "$CC $PLT_CFLAGS"
+
+# Xtensa targets currently default to putting literal values in a separate
+# section and that requires linker script support, so put literals in text.
+if [istarget xtensa*-*-*] {
+ set CFLAGS "$CFLAGS -mtext-section-literals"
+}
+
+# If we have a compiler that doesn't use/reference dot-symbols, then
+# calls to functions reference the .opd section function descriptor.
+# This makes NOCROSSREFS rather useless on powerpc64.
+if [istarget powerpc64-*-*] {
+ set CFLAGS "$CFLAGS -mcall-aixdesc"
+}
+
+# Prevent the use of the MeP's small data area which references a symbol
+# called __sdabase which will not be defined by our test linker scripts.
+if [istarget mep*-*-elf] {
+ set CFLAGS "-mtiny=0"
+}
+
+# The .dsbt section and __c6xabi_DSBT_BASE are not defined in our test
+# linker scripts.
+if [istarget tic6x*-*-*] {
+ set CFLAGS "-mno-dsbt -msdata=none"
+}
+
if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
|| ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
- unresolved $testname
+ unresolved $test1
+ unresolved $test2
+ set CFLAGS "$old_CFLAGS"
+ set CC "$old_CC"
return
}
-verbose -log "$ld -o tmpdir/crossref -T $srcdir/$subdir/crossref.t tmpdir/cross1.o tmpdir/cross2.o"
+set flags [big_or_little_endian]
+
+if [istarget sh64*-*-elf] {
+ # This is what gcc passes to ld by default.
+ set flags "-mshelf32"
+}
+
+# arc-elf32 requires the symbol __SDATA_BEGIN__ to always be present.
+if [istarget arc*-*-elf32] {
+ set flags "$flags --defsym=__SDATA_BEGIN__=0"
+}
+
+# IA64 has both ordered and unordered sections in an input file.
+setup_xfail ia64-*-*
-catch "exec $ld -o tmpdir/crossref -T $srcdir/$subdir/crossref.t tmpdir/cross1.o tmpdir/cross2.o" exec_output
-set exec_output [prune_system_crud $host_triplet $exec_output]
+set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"]
+
+set exec_output [prune_warnings $exec_output]
regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
if [string match "" $exec_output] then {
- fail $testname
+ fail $test1
} else {
verbose -log "$exec_output"
- if [regexp "prohibited cross reference from .* to `foo' in" $exec_output] {
- pass $testname
+ if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
+ pass $test1
} else {
- fail $testname
+ fail $test1
}
}
+
+# Check cross references within a single object.
+
+if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
+ unresolved $test2
+ set CFLAGS "$old_CFLAGS"
+ set CC "$old_CC"
+ return
+}
+
+set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"]
+set exec_output [prune_warnings $exec_output]
+
+regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
+
+if [string match "" $exec_output] then {
+ fail $test2
+} else {
+ verbose -log "$exec_output"
+ if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
+ pass $test2
+ } else {
+ fail $test2
+ }
+}
+
+# Check cross references for ld -r
+
+if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
+ unresolved $test3
+ set CFLAGS "$old_CFLAGS"
+ set CC "$old_CC"
+ return
+}
+
+if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] {
+ unresolved $test3
+ set CFLAGS "$old_CFLAGS"
+ set CC "$old_CC"
+ return
+}
+
+set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"]
+
+set exec_output [prune_warnings $exec_output]
+
+regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
+
+if [string match "" $exec_output] then {
+ pass $test3
+} else {
+ verbose -log "$exec_output"
+ fail $test3
+}
+
+set CFLAGS "$old_CFLAGS"
+set CC "$old_CC"
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