[2.25] sync to a30720e3e633f275250e26f85ccae5dbdddfb6c6

local patches will be re-applied later

commit a30720e3e633f275250e26f85ccae5dbdddfb6c6
Author: Alan Modra <amodra@gmail.com>
Date:   Wed Nov 19 10:30:16 2014 +1030

    daily update

Change-Id: Ieb2a3f4dd2ecb289ac5305ff08d428b2847494ab

1 files changed, 213 insertions, 79 deletions

diff --git a/binutils-2.25/ld/testsuite/lib/ld-lib.exp b/binutils-2.25/ld/testsuite/lib/ld-lib.exp
index 67c429ff..7d2df221 100644
--- a/binutils-2.25/ld/testsuite/lib/ld-lib.exp
+++ b/binutils-2.25/ld/testsuite/lib/ld-lib.exp
@@ -1,5 +1,5 @@
 # Support routines for LD testsuite.
-#   Copyright 1994-2013 Free Software Foundation, Inc.
+#   Copyright (C) 1994-2014 Free Software Foundation, Inc.
 #
 # This file is part of the GNU Binutils.
 #
@@ -79,14 +79,33 @@ proc default_ld_version { ld } {
 
 proc run_host_cmd { prog command } {
     global link_output
+    global gcc_B_opt
+    global ld_L_opt
 
     if { ![is_remote host] && [which "$prog"] == 0 } then {
 	perror "$prog does not exist"
 	return 0
     }
 
-    verbose -log "$prog $command"
-    set status [remote_exec host [concat sh -c [list "$prog $command 2>&1"]] "" "/dev/null" "ld.tmp"]
+    # If we are compiling with gcc, we want to add gcc_B_opt and
+    # ld_L_opt to flags.  However, if $prog already has -B options,
+    # which might be the case when running gcc out of a build
+    # directory, we want our -B options to come first.
+    set gccexe $prog
+    set gccparm [string first " " $gccexe]
+    set gccflags ""
+    if { $gccparm > 0 } then {
+	set gccflags [string range $gccexe $gccparm end]
+	set gccexe [string range $gccexe 0 $gccparm]
+	set prog $gccexe
+    }
+    set gccexe [string replace $gccexe 0 [string last "/" $gccexe] ""]
+    if {[string match "*cc*" $gccexe] || [string match "*++*" $gccexe]} then {
+	set gccflags "$gcc_B_opt $gccflags $ld_L_opt"
+    }
+
+    verbose -log "$prog $gccflags $command"
+    set status [remote_exec host [concat sh -c [list "$prog $gccflags $command 2>&1"]] "" "/dev/null" "ld.tmp"]
     remote_upload host "ld.tmp"
     set link_output [file_contents "ld.tmp"]
     regsub "\n$" $link_output "" link_output
@@ -179,6 +198,7 @@ proc default_ld_link { ld target objects } {
     global HOSTING_CRT0
     global HOSTING_SCRT0
     global HOSTING_LIBS
+    global HOSTING_SLIBS
     global LIBS
     global host_triplet
     global link_output
@@ -186,10 +206,11 @@ proc default_ld_link { ld target objects } {
 
     if { [ string match "* -pie *" $objects ] } {
 	set objs "$HOSTING_SCRT0 $objects"
+	set libs "$LIBS $HOSTING_SLIBS"
     } else {
 	set objs "$HOSTING_CRT0 $objects"
+	set libs "$LIBS $HOSTING_LIBS"
     }
-    set libs "$LIBS $HOSTING_LIBS"
 
     if [is_endian_output_format $objects] then {
 	set flags [big_or_little_endian]
@@ -206,45 +227,22 @@ proc default_ld_link { ld target objects } {
 #
 proc default_ld_simple_link { ld target objects } {
     global host_triplet
-    global gcc_ld_flag
     global exec_output
 
+    set flags ""
     if [is_endian_output_format $objects] then {
 	set flags [big_or_little_endian]
-    } else {
-	set flags ""
-    }
-
-    # If we are compiling with gcc, we want to add gcc_ld_flag to
-    # flags.  Rather than determine this in some complex way, we guess
-    # based on the name of the compiler.
-    set ldexe $ld
-    set ldparm [string first " " $ld]
-    set ldflags ""
-    if { $ldparm > 0 } then {
-	set ldflags [string range $ld $ldparm end]
-	set ldexe [string range $ld 0 $ldparm]
-	set ld $ldexe
-    }
-    set ldexe [string replace $ldexe 0 [string last "/" $ldexe] ""]
-    if {[string match "*gcc*" $ldexe] || [string match "*++*" $ldexe]} then {
-	set ldflags "$gcc_ld_flag $ldflags"
     }
 
     remote_file host delete $target
-
-    set exec_output [run_host_cmd "$ld" "$ldflags $flags -o $target $objects"]
+    set exec_output [run_host_cmd "$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.
     regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 
-    if [string match "" $exec_output] then {
-	return 1
-    } else {
-	return 0
-    }
+    return [string match "" $exec_output]
 }
 
 # Compile an object using cc.
@@ -255,7 +253,7 @@ proc default_ld_compile { cc source object } {
     global srcdir
     global subdir
     global host_triplet
-    global gcc_gas_flag
+    global gcc_B_opt
 
     set cc_prog $cc
     if {[llength $cc_prog] > 1} then {
@@ -269,11 +267,12 @@ proc default_ld_compile { cc source object } {
     remote_file build delete "$object"
     remote_file host delete "$object"
 
-    set flags "-I$srcdir/$subdir"
+    set flags "$gcc_B_opt -I$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
-    # based on the name of the compiler.
+    # If we are compiling with gcc, we want to add gcc_B_opt to flags.
+    # However, if $prog already has -B options, which might be the
+    # case when running gcc out of a build directory, we want our -B
+    # options to come first.
     set ccexe $cc
     set ccparm [string first " " $cc]
     set ccflags ""
@@ -282,24 +281,26 @@ proc default_ld_compile { cc source object } {
 	set ccexe [string range $cc 0 $ccparm]
 	set cc $ccexe
     }
-    set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
-    if {[string match "*gcc*" $ccexe] || [string match "*++*" $ccexe]} then {
-	set flags "$gcc_gas_flag $flags"
-    }
 
+    set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""]
     if {[string match "*++*" $ccexe]} {
-	set flags "$flags $CXXFLAGS"
+	append flags " $CXXFLAGS"
     } else {
-	set flags "$flags $CFLAGS"
+	append flags " $CFLAGS"
+    }
+
+    if [board_info [target_info name] exists cflags] {
+        append flags " [board_info [target_info name] 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 $object"
+    set cmd "$cc $flags $ccflags -c $source -o $object"
+    verbose -log "$cmd"
 
-    set status [remote_exec host [concat sh -c [list "$cc $flags $ccflags -c $source -o $object 2>&1"]] "" "/dev/null" "ld.tmp"]
+    set status [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"]
     remote_upload host "ld.tmp"
     set exec_output [file_contents "ld.tmp"]
     remote_file build delete "ld.tmp"
@@ -409,9 +410,9 @@ proc ld_simple_link_defsyms {} {
         append flags " --defsym __gccmain=0"
     }
 
-    # Windows targets need __main, prefixed with underscore.
+    # Windows targets need __main, some prefixed with underscore.
     if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} {
-        append flags " --defsym ___main=0"
+        append flags " --defsym __main=0 --defsym ___main=0"
     }
 
     # PowerPC EABI code calls __eabi.
@@ -491,6 +492,11 @@ proc ld_simple_link_defsyms {} {
 #   ld_after_inputfiles: FLAGS
 #       Similar to "ld", but put after all input files.
 #
+#   objcopy_objects: FLAGS
+#	Run objcopy with the specified flags after assembling any source
+#	that has the special marker RUN_OBJCOPY in the source specific
+#	flags.
+#
 #   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
@@ -599,6 +605,7 @@ proc run_dump_test { name {extra_options {}} } {
     set opts(error) {}
     set opts(warning) {}
     set opts(objcopy_linked_file) {}
+    set opts(objcopy_objects) {}
 
     foreach i $opt_array {
 	set opt_name [lindex $i 0]
@@ -778,6 +785,12 @@ proc run_dump_test { name {extra_options {}} } {
     for { set i 0 } { $i < [llength $sourcefiles] } { incr i } {
 	set sourcefile [lindex $sourcefiles $i]
 	set sourceasflags [lindex $asflags $i]
+	set run_objcopy_objects 0
+
+	if { [string match "*RUN_OBJCOPY*" $sourceasflags] } {
+	    set run_objcopy_objects 1
+	}
+	regsub "RUN_OBJCOPY" $sourceasflags "" sourceasflags
 
 	set objfile "tmpdir/dump$i.o"
 	catch "exec rm -f $objfile" exec_output
@@ -801,6 +814,30 @@ proc run_dump_test { name {extra_options {}} } {
 	    fail $testname
 	    return
 	}
+
+	if { $run_objcopy_objects } {
+	    set cmd "$OBJCOPY $opts(objcopy_objects) $objfile"
+
+	    send_log "$cmd\n"
+	    set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] \
+			"" "/dev/null" "objcopy.tmp"]
+	    remote_upload host "objcopy.tmp"
+	    set comp_output [prune_warnings [file_contents "objcopy.tmp"]]
+	    remote_file host delete "objcopy.tmp"
+	    remote_file build delete "objcopy.tmp"
+
+	    if { [lindex $cmdret 0] != 0 \
+		  || ![string match "" $comp_output] } {
+		send_log "$comp_output\n"
+		verbose "$comp_output" 3
+
+		set exitstat "succeeded"
+		if { $cmdret != 0 } { set exitstat "failed" }
+		verbose -log "$exitstat with: <$comp_output>"
+		fail $testname
+		return
+	    }
+	}
     }
 
     set expmsg $opts(error)
@@ -1089,7 +1126,9 @@ proc run_ld_link_tests { ldtests } {
 	    continue
 	}
 
-	if { [regexp ".*\\.a$" $binfile] } {
+	if { $binfile eq "tmpdir/" } {
+	    # compile only
+	} elseif { [regexp ".*\\.a$" $binfile] } {
 	    if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } {
 		set failed 1
 	    }
@@ -1292,10 +1331,12 @@ proc run_ld_link_exec_tests { targets_to_xfail ldtests } {
 	    set link_cmd $ld
 	}
 
-	if ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
+	if { $binfile eq "tmpdir/" } {
+	    # compile only
+	    pass $testname
+	    continue;
+	} elseif ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] {
 	    set failed 1
-	} else {
-	    set failed 0
 	}
 
 	# Check if exec_output is expected.
@@ -1383,6 +1424,15 @@ proc run_cc_link_tests { ldtests } {
 	set is_unresolved 0
 	set failed 0
 
+	#verbose -log "testname  is $testname"
+	#verbose -log "ldflags   is $ldflags"
+	#verbose -log "cflags    is $cflags"
+	#verbose -log "src_files is $src_files"
+	#verbose -log "actions   is $actions"
+	#verbose -log "binfile   is $binfile"
+	#verbose -log "lang      is $lang"
+	#verbose -log "warnings  is $warnings"
+
 	# Compile each file in the test.
 	foreach src_file $src_files {
 	    set fileroot "[file rootname [file tail $src_file]]"
@@ -1408,18 +1458,16 @@ proc run_cc_link_tests { ldtests } {
 	    set cc_cmd $CC
 	}
 
-	if { [regexp ".*\\.a$" $binfile] } {
+	if { $binfile eq "tmpdir/" } {
+	    # compile only
+	} elseif { [regexp ".*\\.a$" $binfile] } {
 	    if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } {
 		fail $testname
 		set failed 1
-	    } else {
-		set failed 0
 	    }
 	} else {
 	    if { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } {
 		set failed 1
-	    } else {
-		set failed 0
 	    }
 
 	    # Check if exec_output is expected.
@@ -1493,16 +1541,13 @@ proc run_cc_link_tests { ldtests } {
 		    }
 		}
 	    }
-
-	    if { $failed != 0 } {
-		fail $testname
-	    } else { if { $is_unresolved == 0 } {
-		pass $testname
-	    } }
 	}
 
-	# Catch action errors.
-	if { $is_unresolved != 0 } {
+	if { $failed != 0 } {
+	    fail $testname
+	} elseif { $is_unresolved == 0 } {
+	    pass $testname
+	} else {
 	    unresolved $testname
 	    continue
 	}
@@ -1522,7 +1567,6 @@ proc check_gc_sections_available { } {
 	    || [istarget d30v-*-*]
 	    || [istarget dlx-*-*]
 	    || [istarget i960-*-*]
-	    || [istarget or32-*-*]
 	    || [istarget pj*-*-*]
 	    || [istarget alpha-*-*]
 	    || [istarget hppa*64-*-*]
@@ -1594,8 +1638,8 @@ proc check_shared_lib_support { } {
 	 && ![istarget moxie-*-*]
 	 && ![istarget msp430-*-*]
 	 && ![istarget mt-*-*]
-	 && ![istarget openrisc-*-*]
-	 && ![istarget or32-*-*]
+	 && ![istarget nds32*-*-*]
+	 && ![istarget or1k*-*-*]
 	 && ![istarget pj-*-*]
 	 && ![istarget rl78-*-*]
 	 && ![istarget rx-*-*]
@@ -1616,7 +1660,7 @@ proc check_plugin_api_available { } {
     if {![info exists plugin_api_available_saved]} {
 	# Check if the ld used by gcc supports --plugin.
 	set ld_output [remote_exec host $ld "--help"]
-	if { [ string first "-plugin" $ld_output ] >= 0 } {
+	if { [ string first "-plugin PLUGIN" $ld_output ] >= 0 } {
 	    set plugin_api_available_saved 1
 	} else {
 	    set plugin_api_available_saved 0
@@ -1625,34 +1669,124 @@ proc check_plugin_api_available { } {
     return $plugin_api_available_saved
 }
 
+# Sets ld_sysroot to the current sysroot (empty if not supported) and
+# returns true if the target ld supports sysroot.
+proc check_sysroot_available { } {
+    global ld_sysroot_available_saved ld ld_sysroot
+    if {![info exists ld_sysroot_available_saved]} {
+	# Check if ld supports --sysroot *other* than empty.
+	set ld_sysroot [string trimright [lindex [remote_exec host $ld "--print-sysroot"] 1]]
+	if { $ld_sysroot == "" } {
+	    set ld_sysroot_available_saved 0
+	} else {
+	    set ld_sysroot_available_saved 1
+	}
+    }
+    return $ld_sysroot_available_saved
+}
+
 # Returns true if the target compiler supports LTO
 proc check_lto_available { } {
     global lto_available_saved
     global CC
+
     if {![info exists lto_available_saved]} {
-	# Check if gcc supports -flto -fuse-linker-plugin
-	if { [which $CC] == 0 } {
+        if { [which $CC] == 0 } {
 	    set lto_available_saved 0
 	    return 0
 	}
-	set basename "lto"
-	set src ${basename}[pid].c
-	set output ${basename}[pid].so
+	# Check if gcc supports -flto -fuse-linker-plugin
+	set flags ""
+	if [board_info [target_info name] exists cflags] {
+	    append flags " [board_info [target_info name] cflags]"
+	}
+	if [board_info [target_info name] exists ldflags] {
+	    append flags " [board_info [target_info name] ldflags]"
+	}
+
+	set basename "tmpdir/lto[pid]"
+	set src ${basename}.c
+	set output ${basename}.out
 	set f [open $src "w"]
-	puts $f ""
+	puts $f "int main() { return 0; }"
 	close $f
-	set status [remote_exec host $CC "-shared -B[pwd]/tmpdir/ld/ -flto -fuse-linker-plugin $src -o $output"]
-	if { [lindex $status 0] == 0 } {
-	    set lto_available_saved 1
-	} else {
-	    set lto_available_saved 0
-	}
+	remote_download host $src
+	set lto_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -fuse-linker-plugin $src -o $output"]
+	remote_file host delete $src
+	remote_file host delete $output
 	file delete $src
-	file delete $output
     }
     return $lto_available_saved
 }
 
+# Returns true if the target compiler supports LTO  -ffat-lto-objects
+proc check_lto_fat_available { } {
+    global lto_fat_available_saved
+    global CC
+
+    if {![info exists lto_fat_available_saved]} {
+        if { [which $CC] == 0 } {
+	    set lto_fat_available_saved 0
+	    return 0
+	}
+	# Check if gcc supports -flto -fuse-linker-plugin
+	set flags ""
+	if [board_info [target_info name] exists cflags] {
+	    append flags " [board_info [target_info name] cflags]"
+	}
+	if [board_info [target_info name] exists ldflags] {
+	    append flags " [board_info [target_info name] ldflags]"
+	}
+
+	set basename "tmpdir/lto[pid]"
+	set src ${basename}.c
+	set output ${basename}.out
+	set f [open $src "w"]
+	puts $f "int main() { return 0; }"
+	close $f
+	remote_download host $src
+	set lto_fat_available_saved [run_host_cmd_yesno "$CC" "$flags -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"]
+	remote_file host delete $src
+	remote_file host delete $output
+	file delete $src
+    }
+    return $lto_fat_available_saved
+}
+
+# Returns true if the target compiler supports LTO and -shared
+proc check_lto_shared_available { } {
+    global lto_shared_available_saved
+    global CC
+
+    if {![info exists lto_shared_available_saved]} {
+        if { [which $CC] == 0 } {
+	    set lto_shared_available_saved 0
+	    return 0
+	}
+	# Check if gcc supports -flto -fuse-linker-plugin -shared
+	set flags ""
+	if [board_info [target_info name] exists cflags] {
+	    append flags " [board_info [target_info name] cflags]"
+	}
+	if [board_info [target_info name] exists ldflags] {
+	    append flags " [board_info [target_info name] ldflags]"
+	}
+
+	set basename "tmpdir/lto_shared[pid]"
+	set src ${basename}.c
+	set output ${basename}.so
+	set f [open $src "w"]
+	puts $f ""
+	close $f
+	remote_download host $src
+	set lto_shared_available_saved [run_host_cmd_yesno "$CC" "$flags -shared -fPIC -flto -fuse-linker-plugin $src -o $output"]
+	remote_file host delete $src
+	remote_file host delete $output
+	file delete $src
+    }
+    return $lto_shared_available_saved
+}
+
 # Check if the assembler supports CFI statements.
 
 proc check_as_cfi { } {