# Basic expect script for LD Regression Tests
-# Copyright (C) 1993-2017 Free Software Foundation, Inc.
+# Copyright (C) 1993-2020 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
}
}
-# Many ELF testcases expect that "-z relro" is off.
-set ld_elf_shared_opt "-z norelro"
-
# The "make check" target in the Makefile passes in
# "CC=$(CC_FOR_TARGET)". But, if the user invokes runtest directly
# (as when testing an installed linker), these flags may not be set.
set CXXFLAGS ""
}
+# This allows us to run the linker testsuite with clang as the compilation
+# driver instead of gcc. The syntax of the overrides are as follows, one
+# per line:
+#
+# '#': Silence information about the changes to the command line arguments.
+#
+# '^': Add FOO as a new argument at the beginning of the command line.
+#
+# '+': Add FOO as a new argument at the end of the command line.
+#
+# 's/XXX/YYY/': Substitute the regular expression XXX with YYY in the command
+# line.
+#
+# 'xOPTION': Removes all instances of the literal argument OPTION.
+#
+# 'XOPTION': Removes all instances of the literal argument OPTION,
+# and the following argument.
+#
+# 'Ox': Removes all flags matching 'O' or 'O[sz0-9]' and adds 'Ox'
+# at the end of the command line.
+#
+# \param OS - The stream to write edit information to.
+# \param Args - The vector of command line arguments.
+# \param Edit - The override command to perform.
+# \param SavedStrings - Set to use for storing string representations.
+
+# Only set up the environment variable if the user has not already provided one.
+if {! [info exists env(CCC_OVERRIDE_OPTIONS)]} {
+ set env(CCC_OVERRIDE_OPTIONS) "#\
+ +-Wno-unused-command-line-argument \
+ +-Wno-unknown-attributes \
+ +-Wno-tautological-compare \
+ +-Wno-ignored-optimization-argument \
+ +-Wno-deprecated \
+ +-fuse-ld=$ld \
+ x-Wa,--elf-stt-common=yes \
+ x-Wa,-mx86-used-note=no \
+ x-Wa,-mx86-used-note=yes \
+ x-Wa,-madd-bnd-prefix \
+ x-fno-early-inlining \
+ x-fno-toplevel-reorder \
+ x-flto-partition=none \
+ x-feliminate-dwarf2-dups \
+ s/-Wa,-mrelax-relocations=yes,-mx86-used-note=yes/-Wa,-mrelax-relocations=yes/ \
+ s/-Wa,--compress-debug-sections=zlib/-Wa,-compress-debug-sections=zlib/ \
+ s/-Wa,--compress-debug-sections=zlib-gabi/-Wa,-compress-debug-sections=zlib-gabi/ \
+"
+}
+
# The mips64-*-linux-gnu compiler defaults to the N32 ABI after
# installed, but to the O32 ABI in the build tree, because of some
# specs-file hacks. Make sure we use an ABI that is compatible with
# load the utility procedures
load_lib ld-lib.exp
-proc get_link_files {varname} {
- global $varname
- global target_triplet
- global srcdir
- global CC
- if ![info exists $varname] {
- #configure.host returns variables that can be substituted into
- #makefile rules, with embedded shell variable expansions.
- #make wants $$shell_var, we want $shell_var ...
- set cmd "host='$target_triplet' && . $srcdir/../configure.host && sed -e 's,\\\$\\\$,\$,g' <<EOF\n\$$varname\nEOF"
- set status [catch "exec sh -c [list $cmd]" result]
- if $status { error "Error getting native link files: $result" }
- set cmd "CC='$CC' && eval echo \"$result\""
- set status [catch "exec sh -c [list $cmd]" result]
- if $status { error "Error getting native link files: $result" }
- set $varname $result
- send_log "$varname = $result\n"
- }
-}
-
proc get_target_emul {} {
global target_triplet
global srcdir
return $result
}
-if [isnative] {
- foreach x {HOSTING_CRT0 HOSTING_SCRT0 HOSTING_LIBS HOSTING_SLIBS} {
- get_link_files $x
- }
-} else {
- foreach x {HOSTING_CRT0 HOSTING_SCRT0 HOSTING_LIBS HOSTING_SLIBS} { set $x "" }
-}
if ![info exists HOSTING_EMU] { set HOSTING_EMU "-m [get_target_emul]" }
#
default_ld_link $ld $target $objects
}
-#
-# ld_simple_link
-# link a program using ld, without including any libraries
-#
-proc ld_simple_link { ld target objects } {
- default_ld_simple_link $ld $target $objects
-}
-
#
# ld_compile
# compile an object using $cc
set READELFFLAGS {}
}
+if ![info exists ELFEDIT] then {
+ set ELFEDIT [findfile $base_dir/../binutils/elfedit]
+}
+
if ![info exists LD] then {
set LD [findfile $base_dir/ld-new ./ld-new [transform ld]]
}
set LDFLAGS {}
}
+# Set LD_CLASS to "64bit" for a 64-bit *host* linker.
+if { ![info exists LD_CLASS] } then {
+ set REAL_LD [findfile $base_dir/.libs/ld-new .libs/ld-new $LD [transform ld]]
+ set readelf_output [run_host_cmd "$READELF" "-h $REAL_LD"]
+ if { [regexp {[ \t]+Class:[ \t]+ELF64} $readelf_output] } then {
+ set LD_CLASS "64bit"
+ } else {
+ set LD_CLASS "32bit"
+ }
+}
+
# Set PLT_CFLAGS to "-fplt" if target compiler supports it.
if { ![info exists PLT_CFLAGS] } then {
- if { [which $CC] != 0 } {
+ if { [check_compiler_available] } {
# Check if gcc supports -fplt
set flags ""
if [board_info [target_info name] exists cflags] {
# target compiler supports them.
if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
- if { [which $CC] != 0 } {
+ if { [check_compiler_available] } {
# Check if gcc supports -fno-PIE -no-pie.
set flags ""
if [board_info [target_info name] exists cflags] {
set NOPIE_LDFLAGS ""
}
}
+
+# Set NOCF_PROTECTION_CFLAGS to "-fcf-protection=none" if target compiler
+# supports it.
+
+if { ![info exists NOCF_PROTECTION_CFLAGS] } then {
+ if { [check_compiler_available] } {
+ # Check if gcc supports -fcf-protection=none.
+ 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/available[pid]"
+ set src ${basename}.c
+ set output ${basename}
+ set f [open $src "w"]
+ puts $f "int main (void) { return 0; }"
+ close $f
+ if [is_remote host] {
+ set src [remote_download host $src]
+ }
+ set available [run_host_cmd_yesno "$CC" "$flags -fcf-protection=none $src -o $output"]
+ remote_file host delete $src
+ remote_file host delete $output
+ file delete $src
+
+ if { $available == 1 } then {
+ set NOCF_PROTECTION_CFLAGS "-fcf-protection=none"
+ } else {
+ set NOCF_PROTECTION_CFLAGS ""
+ }
+ } else {
+ set NOCF_PROTECTION_CFLAGS ""
+ }
+}
+
+# Set GNU2_CFLAGS to "-mtls-dialect=gnu2" if target compiler supports it.
+
+if { ![info exists GNU2_CFLAGS] } then {
+ if { [check_compiler_available] } {
+ # Check if gcc supports -mtls-dialect=gnu2
+ 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/gnu2[pid]"
+ set src ${basename}.c
+ set output ${basename}.o
+ set f [open $src "w"]
+ puts $f "__thread int yyy = 100;"
+ close $f
+ if [is_remote host] {
+ set src [remote_download host $src]
+ }
+ set gnu2_available [run_host_cmd_yesno "$CC" "$flags -c -mtls-dialect=gnu2 $src -o $output"]
+ remote_file host delete $src
+ remote_file host delete $output
+ file delete $src
+
+ if { $gnu2_available == 1 } then {
+ set GNU2_CFLAGS "-mtls-dialect=gnu2"
+ } else {
+ set GNU2_CFLAGS ""
+ }
+ } else {
+ set GNU2_CFLAGS ""
+ }
+}
+
+# Set INT128_CFLAGS to "-DHAS_INT128" if target compiler supports __int128.
+
+if { ![info exists INT128_CFLAGS] } then {
+ if { [check_compiler_available] } {
+ # Check if gcc supports __int128.
+ 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/int128[pid]"
+ set src ${basename}.c
+ set output ${basename}.o
+ set f [open $src "w"]
+ puts $f "__int128 a = 42;"
+ close $f
+ if [is_remote host] {
+ set src [remote_download host $src]
+ }
+ set int128_available [run_host_cmd_yesno "$CC" "$flags -c $src -o $output"]
+ remote_file host delete $src
+ remote_file host delete $output
+ file delete $src
+
+ if { $int128_available == 1 } then {
+ set INT128_CFLAGS "-DHAS_INT128"
+ } else {
+ set INT128_CFLAGS ""
+ }
+ } else {
+ set INT128_CFLAGS ""
+ }
+}
+
+# Set STATIC_LDFLAGS to "-static" if target compiler supports it.
+
+if { ![info exists STATIC_LDFLAGS] } then {
+ if { [check_compiler_available] } {
+ # Check if gcc supports -static.
+ 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/static[pid]"
+ set src ${basename}.c
+ set output ${basename}
+ set f [open $src "w"]
+ puts $f "int main (void) { return 0; }"
+ close $f
+ if [is_remote host] {
+ set src [remote_download host $src]
+ }
+ set static_available [run_host_cmd_yesno "$CC" "-static $flags $src -o $output"]
+ remote_file host delete $src
+ remote_file host delete $output
+ file delete $src
+
+ if { $static_available == 1 } then {
+ set STATIC_LDFLAGS "-static"
+ } else {
+ set STATIC_LDFLAGS ""
+ }
+ } else {
+ set STATIC_LDFLAGS ""
+ }
+}
+
+# Set STATIC_PIE_LDFLAGS to "-static-pie" if target compiler supports it.
+
+if { ![info exists STATIC_PIE_LDFLAGS] } then {
+ if { [check_compiler_available] } {
+ # Check if gcc supports -static-pie.
+ 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/static[pid]"
+ set src ${basename}.c
+ set output ${basename}
+ set f [open $src "w"]
+ puts $f "int main (void) { return 0; }"
+ close $f
+ if [is_remote host] {
+ set src [remote_download host $src]
+ }
+ set static_available [run_host_cmd_yesno "$CC" "-static-pie $flags $src -o $output"]
+ remote_file host delete $src
+ remote_file host delete $output
+ file delete $src
+
+ if { $static_available == 1 } then {
+ set STATIC_PIE_LDFLAGS "-static-pie"
+ } else {
+ set STATIC_PIE_LDFLAGS ""
+ }
+ } else {
+ set STATIC_PIE_LDFLAGS ""
+ }
+}
+
+# Set NOSANTIZE_CFLAGS to "-fno-sanitize=all" if target compiler
+# supports it.
+
+if { ![info exists NOSANTIZE_CFLAGS] } then {
+ if { [check_compiler_available] } {
+ # Check if gcc supports -fno-sanitize=all.
+ 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/available[pid]"
+ set src ${basename}.c
+ set output ${basename}
+ set f [open $src "w"]
+ puts $f "int main (void) { return 0; }"
+ close $f
+ if [is_remote host] {
+ set src [remote_download host $src]
+ }
+ set available [run_host_cmd_yesno "$CC" "$flags -fno-sanitize=all $src -o $output"]
+ remote_file host delete $src
+ remote_file host delete $output
+ file delete $src
+
+ if { $available == 1 } then {
+ set NOSANTIZE_CFLAGS "-fno-sanitize=all"
+ } else {
+ set NOSANTIZE_CFLAGS ""
+ }
+ } else {
+ set NOSANTIZE_CFLAGS ""
+ }
+}
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