# Support routines for LD testsuite.
# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-# 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+# 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
proc default_ld_version { ld } {
global host_triplet
- if { [which $ld] == 0 } then {
+ if { ![is_remote host] && [which $ld] == 0 } then {
perror "$ld does not exist"
exit 1
}
- catch "exec $ld --version" tmp
- set tmp [prune_warnings $tmp]
+ remote_exec host "$ld --version" "" "/dev/null" "ld.version"
+ remote_upload host "ld.version"
+ set tmp [prune_warnings [file_contents "ld.version"]]
+ remote_file build delete "ld.version"
+ remote_file host delete "ld.version"
+
regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
if [info exists number] then {
clone_output "$ld $number\n"
}
}
-# Link an object using relocation.
-#
-proc default_ld_relocate { ld target objects } {
- global HOSTING_EMU
- global host_triplet
- global exec_output
+proc run_host_cmd { prog command } {
+ global link_output
- if { [which $ld] == 0 } then {
- perror "$ld does not exist"
+ if { ![is_remote host] && [which "$prog"] == 0 } then {
+ perror "$prog does not exist"
return 0
}
- catch "exec rm -f $target" exec_output
+ verbose -log "$prog $command"
+ set status [remote_exec host [concat sh -c [list "$prog $command 2>&1"]] "" "/dev/null" "ld.tmp"]
+ remote_upload host "ld.tmp"
+ set link_output [file_contents "ld.tmp"]
+ regsub "\n$" $link_output "" link_output
+ if { [lindex $status 0] != 0 && [string match "" $link_output] } then {
+ append link_output "child process exited abnormally"
+ }
+ remote_file build delete ld.tmp
+ remote_file host delete ld.tmp
- verbose -log "$ld $HOSTING_EMU -o $target -r $objects"
+ if [string match "" $link_output] then {
+ return ""
+ }
- catch "exec $ld $HOSTING_EMU -o $target -r $objects" exec_output
- set exec_output [prune_warnings $exec_output]
+ verbose -log "$link_output"
+ return "$link_output"
+}
+
+proc run_host_cmd_yesno { prog command } {
+ global exec_output
+
+ set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]]
if [string match "" $exec_output] then {
- return 1
- } else {
- verbose -log "$exec_output"
- return 0
+ return 1;
}
+ return 0;
+}
+
+# Link an object using relocation.
+#
+proc default_ld_relocate { ld target objects } {
+ global HOSTING_EMU
+
+ remote_file host delete $target
+ return [run_host_cmd_yesno "$ld" "$HOSTING_EMU -o $target -r $objects"]
}
# Check to see if ld is being invoked with a non-endian output format
set objs "$HOSTING_CRT0 $objects"
set libs "$LIBS $HOSTING_LIBS"
- if { [which $ld] == 0 } then {
- perror "$ld does not exist"
- return 0
- }
-
if [is_endian_output_format $objects] then {
set flags [big_or_little_endian]
} else {
set flags ""
}
- catch "exec rm -f $target" exec_output
-
- verbose -log "$ld $HOSTING_EMU $flags -o $target $objs $libs"
+ remote_file host delete $target
- catch "exec $ld $HOSTING_EMU $flags -o $target $objs $libs" link_output
- set exec_output [prune_warnings $link_output]
- if [string match "" $exec_output] then {
- return 1
- } else {
- verbose -log "$exec_output"
- return 0
- }
+ return [run_host_cmd_yesno "$ld" "$HOSTING_EMU $flags -o $target $objs $libs"]
}
# Link a program using ld, without including any libraries.
#
proc default_ld_simple_link { ld target objects } {
global host_triplet
- global link_output
global gcc_ld_flag
global exec_output
- if { [which $ld] == 0 } then {
- perror "$ld does not exist"
- return 0
- }
-
if [is_endian_output_format $objects] then {
set flags [big_or_little_endian]
} else {
set flags "$gcc_ld_flag $flags"
}
- catch "exec rm -f $target" exec_output
+ remote_file host delete $target
- verbose -log "$ld $flags -o $target $objects"
-
- catch "exec $ld $flags -o $target $objects" link_output
- set exec_output [prune_warnings $link_output]
+ set exec_output [run_host_cmd "$ld" "$flags -o $target $objects"]
+ set exec_output [prune_warnings $exec_output]
# We don't care if we get a warning about a non-existent start
# symbol, since the default linker script might use ENTRY.
if [string match "" $exec_output] then {
return 1
} else {
- verbose -log "$exec_output"
return 0
}
}
#
proc default_ld_compile { cc source object } {
global CFLAGS
+ global CXXFLAGS
global srcdir
global subdir
global host_triplet
if {[llength $cc_prog] > 1} then {
set cc_prog [lindex $cc_prog 0]
}
- if {[which $cc_prog] == 0} then {
+ if {![is_remote host] && [which $cc_prog] == 0} then {
perror "$cc_prog does not exist"
return 0
}
- catch "exec rm -f $object" exec_output
+ remote_file build delete "$object"
+ remote_file host delete "$object"
- set flags "-I$srcdir/$subdir $CFLAGS"
+ set flags "-I$srcdir/$subdir"
# If we are compiling with gcc, we want to add gcc_gas_flag to
# flags. Rather than determine this in some complex way, we guess
set flags "$gcc_gas_flag $flags"
}
+ if {[string match "*++*" $ccexe]} {
+ set flags "$flags $CXXFLAGS"
+ } else {
+ set flags "$flags $CFLAGS"
+ }
+
if [board_info [target_info name] exists multilib_flags] {
append flags " [board_info [target_info name] multilib_flags]"
}
verbose -log "$cc $flags $ccflags -c $source -o $object"
- catch "exec $cc $flags $ccflags -c $source -o $object" exec_output
+ set status [remote_exec host [concat sh -c [list "$cc $flags $ccflags -c $source -o $object 2>&1"]] "" "/dev/null" "ld.tmp"]
+ remote_upload host "ld.tmp"
+ set exec_output [file_contents "ld.tmp"]
+ remote_file build delete "ld.tmp"
+ remote_file host delete "ld.tmp"
set exec_output [prune_warnings $exec_output]
if [string match "" $exec_output] then {
if {![file exists $object]} then {
regexp ".*/(\[^/\]*)$" $source all dobj
regsub "\\.c" $dobj ".o" realobj
verbose "looking for $realobj"
- if {[file exists $realobj]} then {
+ if {[remote_file host exists $realobj]} then {
verbose -log "mv $realobj $object"
- catch "exec mv $realobj $object" exec_output
- set exec_output [prune_warnings $exec_output]
- if {![string match "" $exec_output]} then {
- verbose -log "$exec_output"
- perror "could not move $realobj to $object"
- return 0
- }
+ remote_upload "$realobj" "$object"
} else {
perror "$object not found after compilation"
return 0
global ASFLAGS
global host_triplet
- if {[which $as] == 0} then {
- perror "$as does not exist"
- return 0
- }
-
if ![info exists ASFLAGS] { set ASFLAGS "" }
set flags [big_or_little_endian]
-
- verbose -log "$as $flags $ASFLAGS -o $object $source"
-
- catch "exec $as $flags $ASFLAGS -o $object $source" exec_output
+ set exec_output [run_host_cmd "$as" "$flags $ASFLAGS -o $object $source"]
set exec_output [prune_warnings $exec_output]
if [string match "" $exec_output] then {
return 1
} else {
- verbose -log "$exec_output"
perror "$source: assembly failed"
return 0
}
global nm_output
global host_triplet
- if {[which $nm] == 0} then {
- perror "$nm does not exist"
- return 0
- }
-
if {[info exists nm_output]} {
unset nm_output
}
set old_lc_all $env(LC_ALL)
}
set env(LC_ALL) "C"
+
verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out"
- catch "exec $nm $NMFLAGS $nmflags $object >tmpdir/nm.out" exec_output
+ set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"]
if {[info exists old_lc_all]} {
set env(LC_ALL) $old_lc_all
} else {
unset env(LC_ALL)
}
- set exec_output [prune_warnings $exec_output]
+ remote_upload host "ld.stderr"
+ remote_upload host "tmpdir/nm.out" "tmpdir/nm.out"
+ set exec_output [prune_warnings [file_contents "ld.stderr"]]
+ remote_file host delete "ld.stderr"
+ remote_file build delete "ld.stderr"
if [string match "" $exec_output] then {
set file [open tmpdir/nm.out r]
while { [gets $file line] != -1 } {
}
}
+# Define various symbols needed when not linking against all
+# target libs.
+proc ld_simple_link_defsyms {} {
+
+ set flags "--defsym __stack_chk_fail=0"
+
+ # ARM targets call __gccmain
+ if {[istarget arm*-*-*] || \
+ [istarget strongarm*-*-*] || \
+ [istarget xscale*-*-*] || \
+ [istarget thumb-*-*] } {
+ append flags " --defsym __gccmain=0"
+ }
+
+ # PowerPC EABI code calls __eabi.
+ if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} {
+ append flags " --defsym __eabi=0"
+ }
+
+ # mn10200 code calls __truncsipsi2_d0_d2.
+ if {[istarget mn10200*-*-*]} then {
+ append flags " --defsym __truncsipsi2_d0_d2=0"
+ }
+
+ # m6811/m6812 code has references to soft registers.
+ if {[istarget m6811-*-*] || [istarget m6812-*-*]} {
+ append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0"
+ append flags " --defsym _.d3=0 --defsym _.d4=0"
+ append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0"
+ }
+
+ # Some OpenBSD targets have ProPolice and reference __guard and
+ # __stack_smash_handler.
+ if [istarget *-*-openbsd*] {
+ append flags " --defsym __guard=0"
+ append flags " --defsym __stack_smash_handler=0"
+ }
+
+ return $flags
+}
+
# True if the object format is known to be ELF.
#
proc is_elf_format {} {
&& ![istarget hppa*64*-*-hpux*] \
&& ![istarget *-*-linux*] \
&& ![istarget frv-*-uclinux*] \
+ && ![istarget bfin-*-uclinux] \
&& ![istarget *-*-irix5*] \
&& ![istarget *-*-irix6*] \
&& ![istarget *-*-netbsd*] \
proc is_pecoff_format {} {
if { ![istarget *-*-mingw*] \
&& ![istarget *-*-cygwin*] \
+ && ![istarget *-*-cegcc*] \
&& ![istarget *-*-pe*] } {
return 0
}
# Link assembled files using FLAGS, in the order of the "source"
# directives, when using multiple files.
#
+# ld_after_inputfiles: FLAGS
+# Similar to "ld", but put after all input files.
+#
# objcopy_linked_file: FLAGS
# Run objcopy on the linked file with the specified flags.
# This lets you transform the linked file using objcopy, before the
#
# target: TARGET
# Only run the test for TARGET. This may occur more than once; the
-# target being tested must match at least one.
+# target being tested must match at least one. You may provide target
+# name "cfi" for any target supporting the CFI statements.
#
# notarget: TARGET
# Do not run the test for TARGET. This may occur more than once;
global OBJDUMP NM AS OBJCOPY READELF LD
global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS
global host_triplet runtests
- global env
+ global env verbose
if [string match "*/*" $name] {
set file $name
set run_objcopy 0
set opts(as) {}
set opts(ld) {}
+ set opts(ld_after_inputfiles) {}
set opts(xfail) {}
set opts(target) {}
set opts(notarget) {}
}
}
}
+ if { $opt_name == "as" || $opt_name == "ld" } {
+ set opt_val [subst $opt_val]
+ }
set opts($opt_name) [concat $opts($opt_name) $opt_val]
}
+ foreach opt { as ld } {
+ regsub {\[big_or_little_endian\]} $opts($opt) \
+ [big_or_little_endian] opts($opt)
+ }
# Decide early whether we should run the test for this target.
if { [llength $opts(target)] > 0 } {
set cmd "$AS $ASFLAGS $opts(as) $asflags($sourcefile) -o $objfile $sourcefile"
send_log "$cmd\n"
- set cmdret [catch "exec $cmd" comp_output]
- set comp_output [prune_warnings $comp_output]
+ set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
+ remote_upload host "ld.tmp"
+ set comp_output [prune_warnings [file_contents "ld.tmp"]]
+ remote_file host delete "ld.tmp"
+ remote_file build delete "ld.tmp"
- if { $cmdret != 0 || ![string match "" $comp_output] } then {
+ if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then {
send_log "$comp_output\n"
verbose "$comp_output" 3
# Add -L$srcdir/$subdir so that the linker command can use
# linker scripts in the source directory.
set cmd "$LD $LDFLAGS -L$srcdir/$subdir \
- $opts(ld) -o $objfile $objfiles"
+ $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)"
send_log "$cmd\n"
- set cmdret [catch "exec $cmd" comp_output]
- set comp_output [prune_warnings $comp_output]
-
- if { $cmdret != 0 } then {
- # If the executed program writes to stderr and stderr is not
- # redirected, exec *always* returns failure, regardless of the
- # program exit code. Thankfully, we can retrieve the true
- # return status from a special variable. Redirection would
- # cause a Tcl-specific message to be appended, and we'd rather
- # not deal with that if we can help it.
- global errorCode
- if { [lindex $errorCode 0] == "NONE" } {
- set cmdret 0
- }
- }
+ set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
+ remote_upload host "ld.tmp"
+ set comp_output [file_contents "ld.tmp"]
+ remote_file host delete "ld.tmp"
+ remote_file build delete "ld.tmp"
+ set cmdret [lindex $cmdret 0]
if { $cmdret == 0 && $run_objcopy } {
set infile $objfile
set objfile "tmpdir/dump1"
- catch "exec rm -f $objfile" exec_output
+ remote_file host delete $objfile
# Note that we don't use OBJCOPYFLAGS here; any flags must be
# explicitly specified.
set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile"
send_log "$cmd\n"
- set cmdret [catch "exec $cmd" comp_output]
- append comp_output [prune_warnings $comp_output]
-
- if { $cmdret != 0 } then {
- global errorCode
- if { [lindex $errorCode 0] == "NONE" } {
- set cmdret 0
- }
- }
+ set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
+ remote_upload host "ld.tmp"
+ append comp_output [file_contents "ld.tmp"]
+ remote_file host delete "ld.tmp"
+ remote_file build delete "ld.tmp"
+ set cmdret [lindex $cmdret 0]
}
+ regsub "\n$" $comp_output "" comp_output
if { $cmdret != 0 || $comp_output != "" || $expmsg != "" } then {
set exitstat "succeeded"
if { $cmdret != 0 } { set exitstat "failed" }
eval set progopts \$[string toupper $program]FLAGS
eval set binary \$[string toupper $program]
- if { [which $binary] == 0 } {
+ if { ![is_remote host] && [which $binary] == 0 } {
untested $testname
return
}
}
set env(LC_ALL) "C"
send_log "$cmd\n"
- catch "exec $cmd" comp_output
+ set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"]
+ remote_upload host "ld.tmp"
+ set comp_output [prune_warnings [file_contents "ld.tmp"]]
+ remote_file host delete "ld.tmp"
+ remote_file build delete "ld.tmp"
if {[info exists old_lc_all]} {
set env(LC_ALL) $old_lc_all
} else {
unset env(LC_ALL)
}
- set comp_output [prune_warnings $comp_output]
if ![string match "" $comp_output] then {
send_log "$comp_output\n"
fail $testname
return
}
- verbose_eval {[file_contents $dumpfile]} 3
+ if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 }
if { [regexp_diff $dumpfile "${file}.d"] } then {
fail $testname
- verbose "output is [file_contents $dumpfile]" 2
+ if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 }
return
}
return $contents
}
+# Create an archive using ar
+#
+proc ar_simple_create { ar aropts target objects } {
+ remote_file host delete $target
+
+ set exec_output [run_host_cmd "$ar" "$aropts rc $target $objects"]
+ set exec_output [prune_warnings $exec_output]
+
+ if [string match "" $exec_output] then {
+ send_log "$exec_output\n"
+ return 1
+ } else {
+ return 0
+ }
+}
+
# List contains test-items with 3 items followed by 2 lists, one item and
# one optional item:
-# 0:name 1:ld options 2:assembler options
+# 0:name 1:ld/ar options 2:assembler options
# 3:filenames of assembler files 4: action and options. 5: name of output file
# 6:compiler flags (optional)
#
global ld
global as
global nm
+ global ar
global objdump
global READELF
global srcdir
global env
global CC
global CFLAGS
+ global runtests
foreach testitem $ldtests {
set testname [lindex $testitem 0]
+
+ if ![runtest_file_p $runtests $testname] then {
+ continue
+ }
+
set ld_options [lindex $testitem 1]
set as_options [lindex $testitem 2]
set src_files [lindex $testitem 3]
continue
}
- if ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
+ if { [regexp ".*a$" $binfile] } {
+ if { ![ar_simple_create $ar $ld_options $binfile "$objfiles"] } {
+ fail $testname
+ set failed 1
+ } else {
+ set failed 0
+ }
+ } elseif { ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles"] } {
fail $testname
+ set failed 1
} else {
set failed 0
+ }
+
+ if { $failed == 0 } {
foreach actionlist $actions {
set action [lindex $actionlist 0]
set progopts [lindex $actionlist 1]
set old_lc_all $env(LC_ALL)
}
set env(LC_ALL) "C"
- set cmd "$binary $progopts $binfile > dump.out"
+ set cmd "$binary $progopts $binfile"
+ set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"]
send_log "$cmd\n"
- catch "exec $cmd" comp_output
+ remote_upload host "ld.stderr"
+ set comp_output [prune_warnings [file_contents "ld.stderr"]]
+ remote_file host delete "ld.stderr"
+ remote_file build delete "ld.stderr"
+
if {[info exists old_lc_all]} {
set env(LC_ALL) $old_lc_all
} else {
unset env(LC_ALL)
}
- set comp_output [prune_warnings $comp_output]
if ![string match "" $comp_output] then {
send_log "$comp_output\n"
break
}
+ remote_upload host "dump.out"
+
if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then {
verbose "output is [file_contents "dump.out"]" 2
set failed 1
+ remote_file build delete "dump.out"
+ remote_file host delete "dump.out"
break
}
+ remote_file build delete "dump.out"
+ remote_file host delete "dump.out"
}
}
}
}
-
-proc verbose_eval { expr { level 1 } } {
- global verbose
- if $verbose>$level then { eval verbose "$expr" $level }
-}
-
# This definition is taken from an unreleased version of DejaGnu. Once
# that version gets released, and has been out in the world for a few
# months at least, it may be safe to delete this copy.
global CC
global CXX
global CFLAGS
+ global CXXFLAGS
global errcnt
global exec_output
# We ignore warnings since some compilers may generate
# incorrect section attributes and the assembler will warn
# them.
- ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ if { [ string match "c++" $lang ] } {
+ ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ } else {
+ ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ }
# We have to use $CC to build PIE and shared library.
if { [ string match "c" $lang ] } {
# List contains test-items with 3 items followed by 2 lists, one item and
# one optional item:
# 0:name
-# 1:link options
+# 1:ld or ar options
# 2:compile options
# 3:filenames of source files
# 4:action and options.
global CC
global CXX
global CFLAGS
+ global CXXFLAGS
+ global ar
foreach testitem $ldtests {
set testname [lindex $testitem 0]
# We ignore warnings since some compilers may generate
# incorrect section attributes and the assembler will warn
# them.
- ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ if { [ string match "c++" $lang ] } {
+ ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ } else {
+ ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile
+ }
}
# Clear error and warning counts.
set cc_cmd $CC
}
- if ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] {
+ if { [regexp ".*a$" $binfile] } {
+ if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
+ fail $testname
+ set failed 1
+ } else {
+ set failed 0
+ }
+ } elseif { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } {
fail $testname
+ set failed 1
} else {
set failed 0
+ }
+
+ if { $failed == 0 } {
foreach actionlist $actions {
set action [lindex $actionlist 0]
set progopts [lindex $actionlist 1]
}
}
}
+
+# Returns true if --gc-sections is supported on the target.
+
+proc check_gc_sections_available { } {
+ global gc_sections_available_saved
+ global ld
+
+ if {![info exists gc_sections_available_saved]} {
+ # Some targets don't support gc-sections despite whatever's
+ # advertised by ld's options.
+ if { [istarget alpha*-*-*]
+ || [istarget mep-*-*]
+ || [istarget ia64-*-*]
+ || [istarget *-*-cygwin]
+ || [istarget *-*-mingw*] } {
+ set gc_sections_available_saved 0
+ return 0
+ }
+
+ # elf2flt uses -q (--emit-relocs), which is incompatible with
+ # --gc-sections.
+ if { [board_info target exists ldflags]
+ && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
+ set gc_sections_available_saved 0
+ return 0
+ }
+
+ # Check if the ld used by gcc supports --gc-sections.
+ set ld_output [remote_exec host $ld "--help"]
+ if { [ string first "--gc-sections" $ld_output ] >= 0 } {
+ set gc_sections_available_saved 1
+ } else {
+ set gc_sections_available_saved 0
+ }
+ }
+ return $gc_sections_available_saved
+}
+
+# Check if the assembler supports CFI statements.
+
+proc check_as_cfi { } {
+ global check_as_cfi_result
+ global as
+ if [info exists check_as_cfi_result] {
+ return $check_as_cfi_result
+ }
+ set as_file "tmpdir/check_as_cfi.s"
+ set as_fh [open $as_file w 0666]
+ puts $as_fh "# Generated file. DO NOT EDIT"
+ puts $as_fh "\t.cfi_startproc"
+ puts $as_fh "\t.cfi_endproc"
+ close $as_fh
+ remote_download host $as_file
+ verbose -log "Checking CFI support:"
+ rename "perror" "check_as_cfi_perror"
+ proc perror { args } { }
+ set success [ld_assemble $as $as_file "/dev/null"]
+ rename "perror" ""
+ rename "check_as_cfi_perror" "perror"
+ #remote_file host delete $as_file
+ set check_as_cfi_result $success
+ return $success
+}
+
+# Provide virtual target "cfi" for targets supporting CFI.
+
+rename "istarget" "istarget_ld"
+proc istarget { target } {
+ if {$target == "cfi"} {
+ return [check_as_cfi]
+ }
+ return [istarget_ld $target]
+}