target-supports.exp [plain text]
# Copyright (C) 1999, 2001, 2003, 2004, 2005, 2006, 2007
# Free Software Foundation, Inc.
# 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 2 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.
# Please email any bugs, comments, and/or additions to this file to:
# gcc-patches@gcc.gnu.org
# This file defines procs for determining features supported by the target.
# Try to compile some code and return the messages printed by the compiler,
# and optionally the contents for assembly files. Either a string or
# a list of two strings are returned, depending on WANT_OUTPUT.
#
# BASENAME is a basename to use for temporary files.
# WANT_OUTPUT is a flag which is 0 to request returning just the
# compiler messages, or 1 to return the messages and the contents
# of the assembly file. TYPE should be "assembly" if WANT_OUTPUT
# is set.
# TYPE is the type of compilation to perform (see target_compile).
# CONTENTS gives the contents of the input file.
# The rest is optional:
# OPTIONS: additional compiler options to use.
proc get_compiler_messages {basename want_output type contents args} {
global tool
if { [llength $args] > 0 } {
set options [list "additional_flags=[lindex $args 0]"]
} else {
set options ""
}
set src ${basename}[pid].c
switch $type {
assembly { set output ${basename}[pid].s }
object { set output ${basename}[pid].o }
}
set f [open $src "w"]
puts $f $contents
close $f
set lines [${tool}_target_compile $src $output $type "$options"]
file delete $src
if { $want_output } {
if { $type != "assembly" } {
error "WANT_OUTPUT can only be used with assembly output"
} elseif { ![string match "" $lines] } {
# An error occurred.
set result [list $lines ""]
} else {
set text ""
set chan [open "$output"]
while {[gets $chan line] >= 0} {
append text "$line\n"
}
close $chan
set result [list $lines $text]
}
} else {
set result $lines
}
remote_file build delete $output
return $result
}
proc current_target_name { } {
global target_info
if [info exists target_info(target,name)] {
set answer $target_info(target,name)
} else {
set answer ""
}
return $answer
}
# Implement an effective-target check for property PROP by invoking
# the compiler and seeing if it prints any messages. Assume that the
# property holds if the compiler doesn't print anything. The other
# arguments are as for get_compiler_messages, starting with TYPE.
proc check_no_compiler_messages {prop args} {
global et_cache
set target [current_target_name]
if {![info exists et_cache($prop,target)]
|| $et_cache($prop,target) != $target} {
verbose "check_no_compiler_messages $prop: compiling source for $target" 2
set et_cache($prop,target) $target
set et_cache($prop,value) \
[string match "" [eval get_compiler_messages $prop 0 $args]]
}
set value $et_cache($prop,value)
verbose "check_no_compiler_messages $prop: returning $value for $target" 2
return $value
}
# Similar to check_no_compiler_messages, but also verify that the regular
# expression PATTERN matches the compiler's output.
proc check_no_messages_and_pattern {prop pattern args} {
global et_cache
set target [current_target_name]
if {![info exists et_cache($prop,target)]
|| $et_cache($prop,target) != $target} {
verbose "check_no_messages_and_pattern $prop: compiling source for $target" 2
set et_cache($prop,target) $target
set results [eval get_compiler_messages $prop 1 $args]
set et_cache($prop,value) \
[expr [string match "" [lindex $results 0]] \
&& [regexp $pattern [lindex $results 1]]]
}
set value $et_cache($prop,value)
verbose "check_no_messages_and_pattern $prop: returning $value for $target" 2
return $value
}
###############################
# proc check_weak_available { }
###############################
# weak symbols are only supported in some configs/object formats
# this proc returns 1 if they're supported, 0 if they're not, or -1 if unsure
proc check_weak_available { } {
global target_triplet
global target_cpu
# All mips targets should support it
if { [ string first "mips" $target_cpu ] >= 0 } {
return 1
}
# All solaris2 targets should support it
if { [regexp ".*-solaris2.*" $target_triplet] } {
return 1
}
# DEC OSF/1/Digital UNIX/Tru64 UNIX supports it
if { [regexp "alpha.*osf.*" $target_triplet] } {
return 1
}
# Windows targets Cygwin and MingW32 support it
if { [regexp ".*mingw32|.*cygwin" $target_triplet] } {
return 1
}
# HP-UX 10.X doesn't support it
if { [istarget "hppa*-*-hpux10*"] } {
return 0
}
# ELF and ECOFF support it. a.out does with gas/gld but may also with
# other linkers, so we should try it
set objformat [gcc_target_object_format]
switch $objformat {
elf { return 1 }
ecoff { return 1 }
a.out { return 1 }
mach-o { return 1 }
som { return 1 }
unknown { return -1 }
default { return 0 }
}
}
###############################
# proc check_visibility_available { what_kind }
###############################
# The visibility attribute is only support in some object formats
# This proc returns 1 if it is supported, 0 if not.
# The argument is the kind of visibility, default/protected/hidden/internal.
proc check_visibility_available { what_kind } {
global tool
global target_triplet
# On NetWare, support makes no sense.
if { [istarget *-*-netware*] } {
return 0
}
if [string match "" $what_kind] { set what_kind "hidden" }
return [check_no_compiler_messages visibility_available_$what_kind object "
void f() __attribute__((visibility(\"$what_kind\")));
void f() {}
"]
}
###############################
# proc check_alias_available { }
###############################
# Determine if the target toolchain supports the alias attribute.
# Returns 2 if the target supports aliases. Returns 1 if the target
# only supports weak aliased. Returns 0 if the target does not
# support aliases at all. Returns -1 if support for aliases could not
# be determined.
proc check_alias_available { } {
global alias_available_saved
global tool
if [info exists alias_available_saved] {
verbose "check_alias_available returning saved $alias_available_saved" 2
} else {
set src alias[pid].c
set obj alias[pid].o
verbose "check_alias_available compiling testfile $src" 2
set f [open $src "w"]
# Compile a small test program. The definition of "g" is
# necessary to keep the Solaris assembler from complaining
# about the program.
puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
puts $f "void g() {} void f() __attribute__((alias(\"g\")));"
close $f
set lines [${tool}_target_compile $src $obj object ""]
file delete $src
remote_file build delete $obj
if [string match "" $lines] then {
# No error messages, everything is OK.
set alias_available_saved 2
} else {
if [regexp "alias definitions not supported" $lines] {
verbose "check_alias_available target does not support aliases" 2
set objformat [gcc_target_object_format]
if { $objformat == "elf" } {
verbose "check_alias_available but target uses ELF format, so it ought to" 2
set alias_available_saved -1
} else {
set alias_available_saved 0
}
} else {
if [regexp "only weak aliases are supported" $lines] {
verbose "check_alias_available target supports only weak aliases" 2
set alias_available_saved 1
} else {
set alias_available_saved -1
}
}
}
verbose "check_alias_available returning $alias_available_saved" 2
}
return $alias_available_saved
}
# Returns true if --gc-sections is supported on the target.
proc check_gc_sections_available { } {
global gc_sections_available_saved
global tool
if {![info exists gc_sections_available_saved]} {
# Some targets don't support gc-sections despite whatever's
# advertised by ld's options.
if { [istarget alpha*-*-*]
|| [istarget ia64-*-*] } {
set gc_sections_available_saved 0
return 0
}
# Check if the ld used by gcc supports --gc-sections.
set gcc_spec [${tool}_target_compile "-dumpspecs" "" "none" ""]
regsub ".*\n\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
set gcc_ld [lindex [${tool}_target_compile "-print-prog-name=$linker" "" "none" ""] 0]
set ld_output [remote_exec host "$gcc_ld" "--help"]
if { [ string first "--gc-sections" $ld_output ] >= 0 } {
set gc_sections_available_saved 1
} else {
set gc_sections_available_saved 0
}
}
return $gc_sections_available_saved
}
# Return true if profiling is supported on the target.
proc check_profiling_available { test_what } {
global profiling_available_saved
verbose "Profiling argument is <$test_what>" 1
# These conditions depend on the argument so examine them before
# looking at the cache variable.
# Support for -p on solaris2 relies on mcrt1.o which comes with the
# vendor compiler. We cannot reliably predict the directory where the
# vendor compiler (and thus mcrt1.o) is installed so we can't
# necessarily find mcrt1.o even if we have it.
if { [istarget *-*-solaris2*] && [lindex $test_what 1] == "-p" } {
return 0
}
# Support for -p on irix relies on libprof1.a which doesn't appear to
# exist on any irix6 system currently posting testsuite results.
# Support for -pg on irix relies on gcrt1.o which doesn't exist yet.
# See: http://gcc.gnu.org/ml/gcc/2002-10/msg00169.html
if { [istarget mips*-*-irix*]
&& ([lindex $test_what 1] == "-p" || [lindex $test_what 1] == "-pg") } {
return 0
}
# At present, there is no profiling support on NetWare.
if { [istarget *-*-netware*] } {
return 0
}
# Now examine the cache variable.
if {![info exists profiling_available_saved]} {
# Some targets don't have any implementation of __bb_init_func or are
# missing other needed machinery.
if { [istarget mmix-*-*]
|| [istarget arm*-*-eabi*]
|| [istarget arm*-*-elf]
|| [istarget arm*-*-symbianelf*]
|| [istarget powerpc-*-eabi*]
|| [istarget strongarm*-*-elf]
|| [istarget xscale*-*-elf]
|| [istarget cris-*-*]
|| [istarget h8300-*-*]
|| [istarget m32c-*-elf]
|| [istarget m68k-*-elf]
|| [istarget mips*-*-elf]
|| [istarget xtensa-*-elf]
|| [istarget *-*-windiss] } {
set profiling_available_saved 0
} else {
set profiling_available_saved 1
}
}
return $profiling_available_saved
}
# Return 1 if target has packed layout of structure members by
# default, 0 otherwise. Note that this is slightly different than
# whether the target has "natural alignment": both attributes may be
# false.
proc check_effective_target_default_packed { } {
return [check_no_compiler_messages default_packed assembly {
struct x { char a; long b; } c;
int s[sizeof (c) == sizeof (char) + sizeof (long) ? 1 : -1];
}]
}
# Return 1 if target has PCC_BITFIELD_TYPE_MATTERS defined. See
# documentation, where the test also comes from.
proc check_effective_target_pcc_bitfield_type_matters { } {
# PCC_BITFIELD_TYPE_MATTERS isn't just about unnamed or empty
# bitfields, but let's stick to the example code from the docs.
return [check_no_compiler_messages pcc_bitfield_type_matters assembly {
struct foo1 { char x; char :0; char y; };
struct foo2 { char x; int :0; char y; };
int s[sizeof (struct foo1) != sizeof (struct foo2) ? 1 : -1];
}]
}
# Return 1 if thread local storage (TLS) is supported, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_tls {} {
global et_tls_saved
global tool
if [info exists et_tls_saved] {
verbose "check_effective_target_tls: using cached result" 2
} else {
set et_tls_saved 1
set src tls[pid].c
set asm tls[pid].S
verbose "check_effective_target_tls: compiling testfile $src" 2
set f [open $src "w"]
# Compile a small test program.
puts $f "__thread int i;\n"
close $f
# Test for thread-local data supported by the platform.
set comp_output \
[${tool}_target_compile $src $asm assembly ""]
file delete $src
if { [string match "*not supported*" $comp_output] } {
set et_tls_saved 0
}
remove-build-file $asm
}
verbose "check_effective_target_tls: returning $et_tls_saved" 2
return $et_tls_saved
}
# Return 1 if TLS executables can run correctly, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_tls_runtime {} {
global et_tls_runtime_saved
global tool
if [info exists et_tls_runtime_saved] {
verbose "check_effective_target_tls_runtime: using cached result" 2
} else {
set et_tls_runtime_saved 0
set src tls_runtime[pid].c
set exe tls_runtime[pid].x
verbose "check_effective_target_tls_runtime: compiling testfile $src" 2
set f [open $src "w"]
# Compile a small test program.
puts $f "__thread int thr = 0;\n"
puts $f "int main(void)\n {\n return thr;\n}"
close $f
set comp_output \
[${tool}_target_compile $src $exe executable ""]
file delete $src
if [string match "" $comp_output] then {
# No error messages, everything is OK.
set result [remote_load target "./$exe" "" ""]
set status [lindex $result 0]
remote_file build delete $exe
verbose "check_effective_target_tls_runtime status is <$status>" 2
if { $status == "pass" } {
set et_tls_runtime_saved 1
}
verbose "check_effective_target_tls_runtime: returning $et_tls_runtime_saved" 2
}
}
return $et_tls_runtime_saved
}
# Return 1 if compilation with -fopenmp is error-free for trivial
# code, 0 otherwise.
proc check_effective_target_fopenmp {} {
return [check_no_compiler_messages fopenmp object {
void foo (void) { }
} "-fopenmp"]
}
# Return 1 if compilation with -freorder-blocks-and-partition is error-free
# for trivial code, 0 otherwise.
proc check_effective_target_freorder {} {
return [check_no_compiler_messages freorder object {
void foo (void) { }
} "-freorder-blocks-and-partition"]
}
# Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
# emitted, 0 otherwise. Whether a shared library can actually be built is
# out of scope for this test.
proc check_effective_target_fpic { } {
# Note that M68K has a multilib that supports -fpic but not
# -fPIC, so we need to check both. We test with a program that
# requires GOT references.
foreach arg {fpic fPIC} {
if [check_no_compiler_messages $arg object {
extern int foo (void); extern int bar;
int baz (void) { return foo () + bar; }
} "-$arg"] {
return 1
}
}
return 0
}
# Return true if the target supports -mpaired-single (as used on MIPS).
proc check_effective_target_mpaired_single { } {
return [check_no_compiler_messages mpaired_single object {
void foo (void) { }
} "-mpaired-single"]
}
# Return true if iconv is supported on the target. In particular IBM1047.
proc check_iconv_available { test_what } {
global tool
global libiconv
set result ""
set src iconv[pid].c
set exe iconv[pid].x
verbose "check_iconv_available compiling testfile $src" 2
set f [open $src "w"]
# Compile a small test program.
puts $f "#include <iconv.h>\n"
puts $f "int main (void)\n {\n iconv_t cd; \n"
puts $f "cd = iconv_open (\"[lindex $test_what 1]\", \"UTF-8\");\n"
puts $f "if (cd == (iconv_t) -1)\n return 1;\n"
puts $f "return 0;\n}"
close $f
# If the tool configuration file has not set libiconv, try "-liconv"
if { ![info exists libiconv] } {
set libiconv "-liconv"
}
set lines [${tool}_target_compile $src $exe executable "libs=$libiconv" ]
file delete $src
if [string match "" $lines] then {
# No error messages, everything is OK.
set result [${tool}_load "./$exe" "" ""]
set status [lindex $result 0]
remote_file build delete $exe
verbose "check_iconv_available status is <$status>" 2
if { $status == "pass" } then {
return 1
}
}
return 0
}
# Return true if named sections are supported on this target.
proc check_named_sections_available { } {
return [check_no_compiler_messages named_sections assembly {
int __attribute__ ((section("whatever"))) foo;
}]
}
# Return 1 if the target supports Fortran real kinds larger than real(8),
# 0 otherwise.
#
# When the target name changes, replace the cached result.
proc check_effective_target_fortran_large_real { } {
global et_fortran_large_real_saved
global et_fortran_large_real_target_name
global tool
if { ![info exists et_fortran_large_real_target_name] } {
set et_fortran_large_real_target_name ""
}
# If the target has changed since we set the cached value, clear it.
set current_target [current_target_name]
if { $current_target != $et_fortran_large_real_target_name } {
verbose "check_effective_target_fortran_large_real: `$et_fortran_large_real_target_name' `$current_target'" 2
set et_fortran_large_real_target_name $current_target
if [info exists et_fortran_large_real_saved] {
verbose "check_effective_target_fortran_large_real: removing cached result" 2
unset et_fortran_large_real_saved
}
}
if [info exists et_fortran_large_real_saved] {
verbose "check_effective_target_fortran_large_real returning saved $et_fortran_large_real_saved" 2
} else {
set et_fortran_large_real_saved 0
# Set up, compile, and execute a test program using large real
# kinds. Include the current process ID in the file names to
# prevent conflicts with invocations for multiple testsuites.
set src real[pid].f90
set exe real[pid].x
set f [open $src "w"]
puts $f "integer,parameter :: k = &"
puts $f " selected_real_kind (precision (0.0_8) + 1)"
puts $f "real(kind=k) :: x"
puts $f "x = cos (x);"
puts $f "end"
close $f
verbose "check_effective_target_fortran_large_real compiling testfile $src" 2
set lines [${tool}_target_compile $src $exe executable ""]
file delete $src
if [string match "" $lines] then {
# No error message, compilation succeeded.
set et_fortran_large_real_saved 1
}
}
return $et_fortran_large_real_saved
}
# Return 1 if the target supports Fortran integer kinds larger than
# integer(8), 0 otherwise.
#
# When the target name changes, replace the cached result.
proc check_effective_target_fortran_large_int { } {
global et_fortran_large_int_saved
global et_fortran_large_int_target_name
global tool
if { ![info exists et_fortran_large_int_target_name] } {
set et_fortran_large_int_target_name ""
}
# If the target has changed since we set the cached value, clear it.
set current_target [current_target_name]
if { $current_target != $et_fortran_large_int_target_name } {
verbose "check_effective_target_fortran_large_int: `$et_fortran_large_int_target_name' `$current_target'" 2
set et_fortran_large_int_target_name $current_target
if [info exists et_fortran_large_int_saved] {
verbose "check_effective_target_fortran_large_int: removing cached result" 2
unset et_fortran_large_int_saved
}
}
if [info exists et_fortran_large_int_saved] {
verbose "check_effective_target_fortran_large_int returning saved $et_fortran_large_int_saved" 2
} else {
set et_fortran_large_int_saved 0
# Set up, compile, and execute a test program using large integer
# kinds. Include the current process ID in the file names to
# prevent conflicts with invocations for multiple testsuites.
set src int[pid].f90
set exe int[pid].x
set f [open $src "w"]
puts $f "integer,parameter :: k = &"
puts $f " selected_int_kind (range (0_8) + 1)"
puts $f "integer(kind=k) :: i"
puts $f "end"
close $f
verbose "check_effective_target_fortran_large_int compiling testfile $src" 2
set lines [${tool}_target_compile $src $exe executable ""]
file delete $src
if [string match "" $lines] then {
# No error message, compilation succeeded.
set et_fortran_large_int_saved 1
}
}
return $et_fortran_large_int_saved
}
# Return 1 if we can statically link libgfortran, 0 otherwise.
#
# When the target name changes, replace the cached result.
proc check_effective_target_static_libgfortran { } {
global et_static_libgfortran
global et_static_libgfortran_target_name
global tool
if { ![info exists et_static_libgfortran_target_name] } {
set et_static_libgfortran_target_name ""
}
# If the target has changed since we set the cached value, clear it.
set current_target [current_target_name]
if { $current_target != $et_static_libgfortran_target_name } {
verbose "check_effective_target_static_libgfortran: `$et_static_libgfortran_target_name' `$current_target'" 2
set et_static_libgfortran_target_name $current_target
if [info exists et_static_libgfortran_saved] {
verbose "check_effective_target_static_libgfortran: removing cached result" 2
unset et_static_libgfortran_saved
}
}
if [info exists et_static_libgfortran_saved] {
verbose "check_effective_target_static_libgfortran returning saved $et_static_libgfortran_saved" 2
} else {
set et_static_libgfortran_saved 0
# Set up, compile, and execute a test program using static linking.
# Include the current process ID in the file names to prevent
# conflicts with invocations for multiple testsuites.
set opts "additional_flags=-static"
set src static[pid].f
set exe static[pid].x
set f [open $src "w"]
puts $f " print *, 'test'"
puts $f " end"
close $f
verbose "check_effective_target_static_libgfortran compiling testfile $src" 2
set lines [${tool}_target_compile $src $exe executable "$opts"]
file delete $src
if [string match "" $lines] then {
# No error message, compilation succeeded.
set et_static_libgfortran_saved 1
}
}
return $et_static_libgfortran_saved
}
# Return 1 if the target supports executing AltiVec instructions, 0
# otherwise. Cache the result.
proc check_vmx_hw_available { } {
global vmx_hw_available_saved
global tool
if [info exists vmx_hw_available_saved] {
verbose "check_hw_available returning saved $vmx_hw_available_saved" 2
} else {
set vmx_hw_available_saved 0
# Some simulators are known to not support VMX instructions.
if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
verbose "check_hw_available returning 0" 2
return $vmx_hw_available_saved
}
# Set up, compile, and execute a test program containing VMX
# instructions. Include the current process ID in the file
# names to prevent conflicts with invocations for multiple
# testsuites.
set src vmx[pid].c
set exe vmx[pid].x
set f [open $src "w"]
puts $f "int main() {"
puts $f "#ifdef __MACH__"
puts $f " asm volatile (\"vor v0,v0,v0\");"
puts $f "#else"
puts $f " asm volatile (\"vor 0,0,0\");"
puts $f "#endif"
puts $f " return 0; }"
close $f
# Most targets don't require special flags for this test case, but
# Darwin does.
if [istarget *-*-darwin*] {
set opts "additional_flags=-maltivec"
} else {
set opts ""
}
verbose "check_vmx_hw_available compiling testfile $src" 2
set lines [${tool}_target_compile $src $exe executable "$opts"]
file delete $src
if [string match "" $lines] then {
# No error message, compilation succeeded.
set result [${tool}_load "./$exe" "" ""]
set status [lindex $result 0]
remote_file build delete $exe
verbose "check_vmx_hw_available testfile status is <$status>" 2
if { $status == "pass" } then {
set vmx_hw_available_saved 1
}
} else {
verbose "check_vmx_hw_availalble testfile compilation failed" 2
}
}
return $vmx_hw_available_saved
}
# GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
# complex float arguments. This affects gfortran tests that call cabsf
# in libm built by an earlier compiler. Return 1 if libm uses the same
# argument passing as the compiler under test, 0 otherwise.
#
# When the target name changes, replace the cached result.
proc check_effective_target_broken_cplxf_arg { } {
global et_broken_cplxf_arg_saved
global et_broken_cplxf_arg_target_name
global tool
# Skip the work for targets known not to be affected.
if { ![istarget powerpc64-*-linux*] } {
return 0
} elseif { [is-effective-target ilp32] } {
return 0
}
if { ![info exists et_broken_cplxf_arg_target_name] } {
set et_broken_cplxf_arg_target_name ""
}
# If the target has changed since we set the cached value, clear it.
set current_target [current_target_name]
if { $current_target != $et_broken_cplxf_arg_target_name } {
verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
set et_broken_cplxf_arg_target_name $current_target
if [info exists et_broken_cplxf_arg_saved] {
verbose "check_effective_target_broken_cplxf_arg: removing cached result" 2
unset et_broken_cplxf_arg_saved
}
}
if [info exists et_broken_cplxf_arg_saved] {
verbose "check_effective_target_broken_cplxf_arg: using cached result" 2
} else {
set et_broken_cplxf_arg_saved 0
# This is only known to affect one target.
if { ![istarget powerpc64-*-linux*] || ![is-effective-target lp64] } {
set et_broken_cplxf_arg_saved 0
verbose "check_effective_target_broken_cplxf_arg: caching 0" 2
return $et_broken_cplxf_arg_saved
}
# Set up, compile, and execute a C test program that calls cabsf.
set src cabsf[pid].c
set exe cabsf[pid].x
set f [open $src "w"]
puts $f "#include <complex.h>"
puts $f "extern void abort (void);"
puts $f "float fabsf (float);"
puts $f "float cabsf (_Complex float);"
puts $f "int main ()"
puts $f "{"
puts $f " _Complex float cf;"
puts $f " float f;"
puts $f " cf = 3 + 4.0fi;"
puts $f " f = cabsf (cf);"
puts $f " if (fabsf (f - 5.0) > 0.0001) abort ();"
puts $f " return 0;"
puts $f "}"
close $f
set lines [${tool}_target_compile $src $exe executable "-lm"]
file delete $src
if [string match "" $lines] {
# No error message, compilation succeeded.
set result [${tool}_load "./$exe" "" ""]
set status [lindex $result 0]
remote_file build delete $exe
verbose "check_effective_target_broken_cplxf_arg: status is <$status>" 2
if { $status != "pass" } {
set et_broken_cplxf_arg_saved 1
}
} else {
verbose "check_effective_target_broken_cplxf_arg: compilation failed" 2
}
}
return $et_broken_cplxf_arg_saved
}
proc check_alpha_max_hw_available { } {
global alpha_max_hw_available_saved
global tool
if [info exists alpha_max_hw_available_saved] {
verbose "check_alpha_max_hw_available returning saved $alpha_max_hw_available_saved" 2
} else {
set alpha_max_hw_available_saved 0
# Set up, compile, and execute a test program probing bit 8 of the
# architecture mask, which indicates presence of MAX instructions.
set src max[pid].c
set exe max[pid].x
set f [open $src "w"]
puts $f "int main() { return __builtin_alpha_amask(1<<8) != 0; }"
close $f
verbose "check_alpha_max_hw_available compiling testfile $src" 2
set lines [${tool}_target_compile $src $exe executable ""]
file delete $src
if [string match "" $lines] then {
# No error message, compilation succeeded.
set result [${tool}_load "./$exe" "" ""]
set status [lindex $result 0]
remote_file build delete $exe
verbose "check_alpha_max_hw_available testfile status is <$status>" 2
if { $status == "pass" } then {
set alpha_max_hw_available_saved 1
}
} else {
verbose "check_alpha_max_hw_availalble testfile compilation failed" 2
}
}
return $alpha_max_hw_available_saved
}
# Returns true iff the FUNCTION is available on the target system.
# (This is essentially a Tcl implementation of Autoconf's
# AC_CHECK_FUNC.)
proc check_function_available { function } {
set var "${function}_available_saved"
global $var
global tool
if {![info exists $var]} {
# Assume it exists.
set $var 1
# Check to make sure.
set src "function[pid].c"
set exe "function[pid].exe"
set f [open $src "w"]
puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
puts $f "char $function ();\n"
puts $f "int main () { $function (); }"
close $f
set lines [${tool}_target_compile $src $exe executable ""]
file delete $src
file delete $exe
if {![string match "" $lines]} then {
set $var 0
verbose -log "$function is not available"
} else {
verbose -log "$function is available"
}
}
eval return \$$var
}
# Returns true iff "fork" is available on the target system.
proc check_fork_available {} {
return [check_function_available "fork"]
}
# Returns true iff "mkfifo" is available on the target system.
proc check_mkfifo_available {} {
if {[istarget *-*-cygwin*]} {
# Cygwin has mkfifo, but support is incomplete.
return 0
}
return [check_function_available "mkfifo"]
}
# Returns true iff "__cxa_atexit" is used on the target system.
proc check_cxa_atexit_available { } {
global et_cxa_atexit
global et_cxa_atexit_target_name
global tool
if { ![info exists et_cxa_atexit_target_name] } {
set et_cxa_atexit_target_name ""
}
# If the target has changed since we set the cached value, clear it.
set current_target [current_target_name]
if { $current_target != $et_cxa_atexit_target_name } {
verbose "check_cxa_atexit_available: `$et_cxa_atexit_target_name'" 2
set et_cxa_atexit_target_name $current_target
if [info exists et_cxa_atexit] {
verbose "check_cxa_atexit_available: removing cached result" 2
unset et_cxa_atexit
}
}
if [info exists et_cxa_atexit] {
verbose "check_cxa_atexit_available: using cached result" 2
} elseif { [istarget "hppa*-*-hpux10*"] } {
# HP-UX 10 doesn't have __cxa_atexit but subsequent test passes.
set et_cxa_atexit 0
} else {
set et_cxa_atexit 0
# Set up, compile, and execute a C++ test program that depends
# on correct ordering of static object destructors. This is
# indicative of the presence and use of __cxa_atexit.
set src cxaatexit[pid].cc
set exe cxaatexit[pid].x
set f [open $src "w"]
puts $f "#include <stdlib.h>"
puts $f "static unsigned int count;"
puts $f "struct X"
puts $f "{"
puts $f " X() { count = 1; }"
puts $f " ~X()"
puts $f " {"
puts $f " if (count != 3)"
puts $f " exit(1);"
puts $f " count = 4;"
puts $f " }"
puts $f "};"
puts $f "void f()"
puts $f "{"
puts $f " static X x;"
puts $f "}"
puts $f "struct Y"
puts $f "{"
puts $f " Y() { f(); count = 2; }"
puts $f " ~Y()"
puts $f " {"
puts $f " if (count != 2)"
puts $f " exit(1);"
puts $f " count = 3;"
puts $f " }"
puts $f "};"
puts $f "Y y;"
puts $f "int main()"
puts $f "{ return 0; }"
close $f
set lines [${tool}_target_compile $src $exe executable ""]
file delete $src
if [string match "" $lines] {
# No error message, compilation succeeded.
set result [${tool}_load "./$exe" "" ""]
set status [lindex $result 0]
remote_file build delete $exe
verbose "check_cxa_atexit_available: status is <$status>" 2
if { $status == "pass" } {
set et_cxa_atexit 1
}
} else {
verbose "check_cxa_atexit_available: compilation failed" 2
}
}
return $et_cxa_atexit
}
# Return 1 if we're generating 32-bit code using default options, 0
# otherwise.
proc check_effective_target_ilp32 { } {
return [check_no_compiler_messages ilp32 object {
int dummy[sizeof (int) == 4
&& sizeof (void *) == 4
&& sizeof (long) == 4 ? 1 : -1];
}]
}
# Return 1 if we're generating 32-bit or larger integers using default
# options, 0 otherwise.
proc check_effective_target_int32plus { } {
return [check_no_compiler_messages int32plus object {
int dummy[sizeof (int) >= 4 ? 1 : -1];
}]
}
# Return 1 if we're generating 32-bit or larger pointers using default
# options, 0 otherwise.
proc check_effective_target_ptr32plus { } {
return [check_no_compiler_messages ptr32plus object {
int dummy[sizeof (void *) >= 4 ? 1 : -1];
}]
}
# Return 1 if we support 32-bit or larger array and structure sizes
# using default options, 0 otherwise.
proc check_effective_target_size32plus { } {
return [check_no_compiler_messages size32plus object {
char dummy[65537];
}]
}
# Returns 1 if we're generating 16-bit or smaller integers with the
# default options, 0 otherwise.
proc check_effective_target_int16 { } {
return [check_no_compiler_messages int16 object {
int dummy[sizeof (int) < 4 ? 1 : -1];
}]
}
# Return 1 if we're generating 64-bit code using default options, 0
# otherwise.
proc check_effective_target_lp64 { } {
return [check_no_compiler_messages lp64 object {
int dummy[sizeof (int) == 4
&& sizeof (void *) == 8
&& sizeof (long) == 8 ? 1 : -1];
}]
}
# Return 1 if the target supports compiling decimal floating point,
# 0 otherwise.
proc check_effective_target_dfp_nocache { } {
verbose "check_effective_target_dfp_nocache: compiling source" 2
set ret [string match "" [get_compiler_messages dfp 0 object {
_Decimal32 x; _Decimal64 y; _Decimal128 z;
}]]
verbose "check_effective_target_dfp_nocache: returning $ret" 2
return $ret
}
proc check_effective_target_dfprt_nocache { } {
global tool
set ret 0
verbose "check_effective_target_dfprt_nocache: compiling source" 2
# Set up, compile, and execute a test program containing decimal
# float operations.
set src dfprt[pid].c
set exe dfprt[pid].x
set f [open $src "w"]
puts $f "_Decimal32 x = 1.2df; _Decimal64 y = 2.3dd; _Decimal128 z;"
puts $f "int main () { z = x + y; return 0; }"
close $f
verbose "check_effective_target_dfprt_nocache: compiling testfile $src" 2
set lines [${tool}_target_compile $src $exe executable ""]
file delete $src
if [string match "" $lines] then {
# No error message, compilation succeeded.
set result [${tool}_load "./$exe" "" ""]
set status [lindex $result 0]
remote_file build delete $exe
verbose "check_effective_target_dfprt_nocache: testfile status is <$status>" 2
if { $status == "pass" } then {
set ret 1
}
}
return $ret
verbose "check_effective_target_dfprt_nocache: returning $ret" 2
}
# Return 1 if the target supports compiling Decimal Floating Point,
# 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_dfp { } {
global et_dfp_saved
if [info exists et_dfp_saved] {
verbose "check_effective_target_dfp: using cached result" 2
} else {
set et_dfp_saved [check_effective_target_dfp_nocache]
}
verbose "check_effective_target_dfp: returning $et_dfp_saved" 2
return $et_dfp_saved
}
# Return 1 if the target supports linking and executing Decimal Floating
# Point, # 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_dfprt { } {
global et_dfprt_saved
global tool
if [info exists et_dfprt_saved] {
verbose "check_effective_target_dfprt: using cached result" 2
} else {
set et_dfprt_saved [check_effective_target_dfprt_nocache]
}
verbose "check_effective_target_dfprt: returning $et_dfprt_saved" 2
return $et_dfprt_saved
}
# Return 1 if the target needs a command line argument to enable a SIMD
# instruction set.
proc check_effective_target_vect_cmdline_needed { } {
global et_vect_cmdline_needed_saved
global et_vect_cmdline_needed_target_name
if { ![info exists et_vect_cmdline_needed_target_name] } {
set et_vect_cmdline_needed_target_name ""
}
# If the target has changed since we set the cached value, clear it.
set current_target [current_target_name]
if { $current_target != $et_vect_cmdline_needed_target_name } {
verbose "check_effective_target_vect_cmdline_needed: `$et_vect_cmdline_needed_target_name' `$current_target'" 2
set et_vect_cmdline_needed_target_name $current_target
if { [info exists et_vect_cmdline_needed_saved] } {
verbose "check_effective_target_vect_cmdline_needed: removing cached result" 2
unset et_vect_cmdline_needed_saved
}
}
if [info exists et_vect_cmdline_needed_saved] {
verbose "check_effective_target_vect_cmdline_needed: using cached result" 2
} else {
set et_vect_cmdline_needed_saved 1
if { [istarget ia64-*-*]
|| (([istarget x86_64-*-*] || [istarget i?86-*-*])
&& [check_effective_target_lp64])
|| ([istarget powerpc*-*-*]
&& ([check_effective_target_powerpc_spe]
|| [check_effective_target_powerpc_altivec]))} {
set et_vect_cmdline_needed_saved 0
}
}
verbose "check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
return $et_vect_cmdline_needed_saved
}
# Return 1 if the target supports hardware vectors of int, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_int { } {
global et_vect_int_saved
if [info exists et_vect_int_saved] {
verbose "check_effective_target_vect_int: using cached result" 2
} else {
set et_vect_int_saved 0
if { [istarget i?86-*-*]
|| [istarget powerpc*-*-*]
|| [istarget x86_64-*-*]
|| [istarget sparc*-*-*]
|| [istarget alpha*-*-*]
|| [istarget ia64-*-*] } {
set et_vect_int_saved 1
}
}
verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
return $et_vect_int_saved
}
# Return 1 is this is an arm target using 32-bit instructions
proc check_effective_target_arm32 { } {
global et_arm32_saved
global et_arm32_target_name
global compiler_flags
if { ![info exists et_arm32_target_name] } {
set et_arm32_target_name ""
}
# If the target has changed since we set the cached value, clear it.
set current_target [current_target_name]
if { $current_target != $et_arm32_target_name } {
verbose "check_effective_target_arm32: `$et_arm32_target_name' `$current_target'" 2
set et_arm32_target_name $current_target
if { [info exists et_arm32_saved] } {
verbose "check_effective_target_arm32: removing cached result" 2
unset et_arm32_saved
}
}
if [info exists et_arm32_saved] {
verbose "check-effective_target_arm32: using cached result" 2
} else {
set et_arm32_saved 0
if { [istarget arm-*-*]
|| [istarget strongarm*-*-*]
|| [istarget xscale-*-*] } {
if ![string match "*-mthumb *" $compiler_flags] {
set et_arm32_saved 1
}
}
}
verbose "check_effective_target_arm32: returning $et_arm32_saved" 2
return $et_arm32_saved
}
# Return 1 if this is an ARM target supporting -mfpu=vfp
# -mfloat-abi=softfp. Some multilibs may be incompatible with these
# options.
proc check_effective_target_arm_vfp_ok { } {
if { [check_effective_target_arm32] } {
return [check_no_compiler_messages arm_vfp_ok object {
int dummy;
} "-mfpu=vfp -mfloat-abi=softfp"]
} else {
return 0
}
}
# Return 1 if this is a PowerPC target with floating-point registers.
proc check_effective_target_powerpc_fprs { } {
if { [istarget powerpc*-*-*]
|| [istarget rs6000-*-*] } {
return [check_no_compiler_messages powerpc_fprs object {
#ifdef __NO_FPRS__
#error no FPRs
#else
int dummy;
#endif
}]
} else {
return 0
}
}
# Return 1 if this is a PowerPC target supporting -maltivec.
proc check_effective_target_powerpc_altivec_ok { } {
if { [istarget powerpc*-*-*]
|| [istarget rs6000-*-*] } {
# AltiVec is not supported on Aix.
if { [istarget powerpc*-*-aix*] } {
return 0
}
return [check_no_compiler_messages powerpc_altivec_ok object {
int dummy;
} "-maltivec"]
} else {
return 0
}
}
# Return 1 if this is a PowerPC target with SPE enabled.
proc check_effective_target_powerpc_spe { } {
if { [istarget powerpc*-*-*] } {
return [check_no_compiler_messages powerpc_spe object {
#ifndef __SPE__
#error not SPE
#else
int dummy;
#endif
}]
} else {
return 0
}
}
# Return 1 if this is a PowerPC target with Altivec enabled.
proc check_effective_target_powerpc_altivec { } {
if { [istarget powerpc*-*-*] } {
return [check_no_compiler_messages powerpc_altivec object {
#ifndef __ALTIVEC__
#error not Altivec
#else
int dummy;
#endif
}]
} else {
return 0
}
}
# Return 1 if the target supports hardware vector shift operation.
proc check_effective_target_vect_shift { } {
global et_vect_shift_saved
if [info exists et_vect_shift_saved] {
verbose "check_effective_target_vect_shift: using cached result" 2
} else {
set et_vect_shift_saved 0
if { [istarget powerpc*-*-*]
|| [istarget ia64-*-*]
|| [istarget i?86-*-*]
|| [istarget x86_64-*-*] } {
set et_vect_shift_saved 1
}
}
verbose "check_effective_target_vect_shift: returning $et_vect_shift_saved" 2
return $et_vect_shift_saved
}
# Return 1 if the target supports hardware vectors of long, 0 otherwise.
#
# This can change for different subtargets so do not cache the result.
proc check_effective_target_vect_long { } {
if { [istarget i?86-*-*]
|| ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
|| [istarget x86_64-*-*]
|| ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
set answer 1
} else {
set answer 0
}
verbose "check_effective_target_vect_long: returning $answer" 2
return $answer
}
# Return 1 if the target supports hardware vectors of float, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_float { } {
global et_vect_float_saved
if [info exists et_vect_float_saved] {
verbose "check_effective_target_vect_float: using cached result" 2
} else {
set et_vect_float_saved 0
if { [istarget i?86-*-*]
|| [istarget powerpc*-*-*]
|| [istarget mipsisa64*-*-*]
|| [istarget x86_64-*-*]
|| [istarget ia64-*-*] } {
set et_vect_float_saved 1
}
}
verbose "check_effective_target_vect_float: returning $et_vect_float_saved" 2
return $et_vect_float_saved
}
# Return 1 if the target supports hardware vectors of double, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_double { } {
global et_vect_double_saved
if [info exists et_vect_double_saved] {
verbose "check_effective_target_vect_double: using cached result" 2
} else {
set et_vect_double_saved 0
if { [istarget i?86-*-*]
|| [istarget x86_64-*-*] } {
set et_vect_double_saved 1
}
}
verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
return $et_vect_double_saved
}
# Return 1 if the target plus current options does not support a vector
# max instruction on "int", 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_no_int_max { } {
global et_vect_no_int_max_saved
if [info exists et_vect_no_int_max_saved] {
verbose "check_effective_target_vect_no_int_max: using cached result" 2
} else {
set et_vect_no_int_max_saved 0
if { [istarget sparc*-*-*]
|| [istarget alpha*-*-*] } {
set et_vect_no_int_max_saved 1
}
}
verbose "check_effective_target_vect_no_int_max: returning $et_vect_no_int_max_saved" 2
return $et_vect_no_int_max_saved
}
# Return 1 if the target plus current options does not support a vector
# add instruction on "int", 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_no_int_add { } {
global et_vect_no_int_add_saved
if [info exists et_vect_no_int_add_saved] {
verbose "check_effective_target_vect_no_int_add: using cached result" 2
} else {
set et_vect_no_int_add_saved 0
# Alpha only supports vector add on V8QI and V4HI.
if { [istarget alpha*-*-*] } {
set et_vect_no_int_add_saved 1
}
}
verbose "check_effective_target_vect_no_int_add: returning $et_vect_no_int_add_saved" 2
return $et_vect_no_int_add_saved
}
# Return 1 if the target plus current options does not support vector
# bitwise instructions, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_no_bitwise { } {
global et_vect_no_bitwise_saved
if [info exists et_vect_no_bitwise_saved] {
verbose "check_effective_target_vect_no_bitwise: using cached result" 2
} else {
set et_vect_no_bitwise_saved 0
}
verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
return $et_vect_no_bitwise_saved
}
# Return 1 if the target plus current options supports a vector
# widening summation of *short* args into *int* result, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_widen_sum_hi_to_si { } {
global et_vect_widen_sum_hi_to_si
if [info exists et_vect_widen_sum_hi_to_si_saved] {
verbose "check_effective_target_vect_widen_sum_hi_to_si: using cached result" 2
} else {
set et_vect_widen_sum_hi_to_si_saved 0
if { [istarget powerpc*-*-*]
|| [istarget ia64-*-*] } {
set et_vect_widen_sum_hi_to_si_saved 1
}
}
verbose "check_effective_target_vect_widen_sum_hi_to_si: returning $et_vect_widen_sum_hi_to_si_saved" 2
return $et_vect_widen_sum_hi_to_si_saved
}
# Return 1 if the target plus current options supports a vector
# widening summation of *char* args into *short* result, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_widen_sum_qi_to_hi { } {
global et_vect_widen_sum_qi_to_hi
if [info exists et_vect_widen_sum_qi_to_hi_saved] {
verbose "check_effective_target_vect_widen_sum_qi_to_hi: using cached result" 2
} else {
set et_vect_widen_sum_qi_to_hi_saved 0
if { [istarget ia64-*-*] } {
set et_vect_widen_sum_qi_to_hi_saved 1
}
}
verbose "check_effective_target_vect_widen_sum_qi_to_hi: returning $et_vect_widen_sum_qi_to_hi_saved" 2
return $et_vect_widen_sum_qi_to_hi_saved
}
# Return 1 if the target plus current options supports a vector
# widening summation of *char* args into *int* result, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_widen_sum_qi_to_si { } {
global et_vect_widen_sum_qi_to_si
if [info exists et_vect_widen_sum_qi_to_si_saved] {
verbose "check_effective_target_vect_widen_sum_qi_to_si: using cached result" 2
} else {
set et_vect_widen_sum_qi_to_si_saved 0
if { [istarget powerpc*-*-*] } {
set et_vect_widen_sum_qi_to_si_saved 1
}
}
verbose "check_effective_target_vect_widen_sum_qi_to_si: returning $et_vect_widen_sum_qi_to_si_saved" 2
return $et_vect_widen_sum_qi_to_si_saved
}
# Return 1 if the target plus current options supports a vector
# widening summation, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_widen_sum { } {
global et_vect_widen_sum
if [info exists et_vect_widen_sum_saved] {
verbose "check_effective_target_vect_widen_sum: using cached result" 2
} else {
set et_vect_widen_sum_saved 0
if { [istarget powerpc*-*-*]
|| [istarget ia64-*-*] } {
set et_vect_widen_sum_saved 1
}
}
verbose "check_effective_target_vect_widen_sum: returning $et_vect_widen_sum_saved" 2
return $et_vect_widen_sum_saved
}
# Return 1 if the target plus current options supports a vector
# dot-product of signed chars, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_sdot_qi { } {
global et_vect_sdot_qi
if [info exists et_vect_sdot_qi_saved] {
verbose "check_effective_target_vect_sdot_qi: using cached result" 2
} else {
set et_vect_sdot_qi_saved 0
if { [istarget ia64-*-*] } {
set et_vect_sdot_qi_saved 1
}
}
verbose "check_effective_target_vect_sdot_qi: returning $et_vect_sdot_qi_saved" 2
return $et_vect_sdot_qi_saved
}
# Return 1 if the target plus current options supports a vector
# dot-product of unsigned chars, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_udot_qi { } {
global et_vect_udot_qi
if [info exists et_vect_udot_qi_saved] {
verbose "check_effective_target_vect_udot_qi: using cached result" 2
} else {
set et_vect_udot_qi_saved 0
if { [istarget powerpc*-*-*]
|| [istarget ia64-*-*] } {
set et_vect_udot_qi_saved 1
}
}
verbose "check_effective_target_vect_udot_qi: returning $et_vect_udot_qi_saved" 2
return $et_vect_udot_qi_saved
}
# Return 1 if the target plus current options supports a vector
# dot-product of signed shorts, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_sdot_hi { } {
global et_vect_sdot_hi
if [info exists et_vect_sdot_hi_saved] {
verbose "check_effective_target_vect_sdot_hi: using cached result" 2
} else {
set et_vect_sdot_hi_saved 0
if { [istarget powerpc*-*-*]
|| [istarget i?86-*-*]
|| [istarget x86_64-*-*]
|| [istarget ia64-*-*] } {
set et_vect_sdot_hi_saved 1
}
}
verbose "check_effective_target_vect_sdot_hi: returning $et_vect_sdot_hi_saved" 2
return $et_vect_sdot_hi_saved
}
# Return 1 if the target plus current options supports a vector
# dot-product of unsigned shorts, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_udot_hi { } {
global et_vect_udot_hi
if [info exists et_vect_udot_hi_saved] {
verbose "check_effective_target_vect_udot_hi: using cached result" 2
} else {
set et_vect_udot_hi_saved 0
if { [istarget powerpc*-*-*] } {
set et_vect_udot_hi_saved 1
}
}
verbose "check_effective_target_vect_udot_hi: returning $et_vect_udot_hi_saved" 2
return $et_vect_udot_hi_saved
}
# Return 1 if the target plus current options does not support a vector
# alignment mechanism, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
proc check_effective_target_vect_no_align { } {
global et_vect_no_align_saved
if [info exists et_vect_no_align_saved] {
verbose "check_effective_target_vect_no_align: using cached result" 2
} else {
set et_vect_no_align_saved 0
if { [istarget mipsisa64*-*-*]
|| [istarget sparc*-*-*]
|| [istarget ia64-*-*] } {
set et_vect_no_align_saved 1
}
}
verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
return $et_vect_no_align_saved
}
# Return 1 if the target supports vector conditional operations, 0 otherwise.
proc check_effective_target_vect_condition { } {
global et_vect_cond_saved
if [info exists et_vect_cond_saved] {
verbose "check_effective_target_vect_cond: using cached result" 2
} else {
set et_vect_cond_saved 0
if { [istarget powerpc*-*-*]
|| [istarget ia64-*-*]
|| [istarget i?86-*-*]
|| [istarget x86_64-*-*] } {
set et_vect_cond_saved 1
}
}
verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
return $et_vect_cond_saved
}
# Return 1 if the target supports vector char multiplication, 0 otherwise.
proc check_effective_target_vect_char_mult { } {
global et_vect_char_mult_saved
if [info exists et_vect_char_mult_saved] {
verbose "check_effective_target_vect_char_mult: using cached result" 2
} else {
set et_vect_char_mult_saved 0
if { [istarget ia64-*-*]
|| [istarget i?86-*-*]
|| [istarget x86_64-*-*] } {
set et_vect_char_mult_saved 1
}
}
verbose "check_effective_target_vect_char_mult: returning $et_vect_char_mult_saved" 2
return $et_vect_char_mult_saved
}
# Return 1 if the target supports vector short multiplication, 0 otherwise.
proc check_effective_target_vect_short_mult { } {
global et_vect_short_mult_saved
if [info exists et_vect_short_mult_saved] {
verbose "check_effective_target_vect_short_mult: using cached result" 2
} else {
set et_vect_short_mult_saved 0
if { [istarget ia64-*-*]
|| [istarget i?86-*-*]
|| [istarget x86_64-*-*] } {
set et_vect_short_mult_saved 1
}
}
verbose "check_effective_target_vect_short_mult: returning $et_vect_short_mult_saved" 2
return $et_vect_short_mult_saved
}
# Return 1 if the target supports vector int multiplication, 0 otherwise.
proc check_effective_target_vect_int_mult { } {
global et_vect_int_mult_saved
if [info exists et_vect_int_mult_saved] {
verbose "check_effective_target_vect_int_mult: using cached result" 2
} else {
set et_vect_int_mult_saved 0
if { [istarget powerpc*-*-*]
|| [istarget i?86-*-*]
|| [istarget x86_64-*-*] } {
set et_vect_int_mult_saved 1
}
}
verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
return $et_vect_int_mult_saved
}
# Return 1 if the target supports section-anchors
proc check_effective_target_section_anchors { } {
global et_section_anchors_saved
if [info exists et_section_anchors_saved] {
verbose "check_effective_target_section_anchors: using cached result" 2
} else {
set et_section_anchors_saved 0
if { [istarget powerpc*-*-*] } {
set et_section_anchors_saved 1
}
}
verbose "check_effective_target_section_anchors: returning $et_section_anchors_saved" 2
return $et_section_anchors_saved
}
# Return 1 if the target supports atomic operations on "int" and "long".
proc check_effective_target_sync_int_long { } {
global et_sync_int_long_saved
if [info exists et_sync_int_long_saved] {
verbose "check_effective_target_sync_int_long: using cached result" 2
} else {
set et_sync_int_long_saved 0
# This is intentionally powerpc but not rs6000, rs6000 doesn't have the
# load-reserved/store-conditional instructions.
if { [istarget ia64-*-*]
|| [istarget i?86-*-*]
|| [istarget x86_64-*-*]
|| [istarget alpha*-*-*]
|| [istarget s390*-*-*]
|| [istarget powerpc*-*-*]
|| [istarget sparc64-*-*]
|| [istarget sparcv9-*-*] } {
set et_sync_int_long_saved 1
}
}
verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
return $et_sync_int_long_saved
}
# Return 1 if the target supports atomic operations on "char" and "short".
proc check_effective_target_sync_char_short { } {
global et_sync_char_short_saved
if [info exists et_sync_char_short_saved] {
verbose "check_effective_target_sync_char_short: using cached result" 2
} else {
set et_sync_char_short_saved 0
# This is intentionally powerpc but not rs6000, rs6000 doesn't have the
# load-reserved/store-conditional instructions.
if { [istarget ia64-*-*]
|| [istarget i?86-*-*]
|| [istarget x86_64-*-*]
|| [istarget alpha*-*-*]
|| [istarget s390*-*-*]
|| [istarget powerpc*-*-*]
|| [istarget sparc64-*-*]
|| [istarget sparcv9-*-*] } {
set et_sync_char_short_saved 1
}
}
verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
return $et_sync_char_short_saved
}
# Return 1 if the target matches the effective target 'arg', 0 otherwise.
# This can be used with any check_* proc that takes no argument and
# returns only 1 or 0. It could be used with check_* procs that take
# arguments with keywords that pass particular arguments.
proc is-effective-target { arg } {
set selected 0
if { [info procs check_effective_target_${arg}] != [list] } {
set selected [check_effective_target_${arg}]
} else {
switch $arg {
"vmx_hw" { set selected [check_vmx_hw_available] }
"named_sections" { set selected [check_named_sections_available] }
"gc_sections" { set selected [check_gc_sections_available] }
"cxa_atexit" { set selected [check_cxa_atexit_available] }
default { error "unknown effective target keyword `$arg'" }
}
}
verbose "is-effective-target: $arg $selected" 2
return $selected
}
# Return 1 if the argument is an effective-target keyword, 0 otherwise.
proc is-effective-target-keyword { arg } {
if { [info procs check_effective_target_${arg}] != [list] } {
return 1
} else {
# These have different names for their check_* procs.
switch $arg {
"vmx_hw" { return 1 }
"named_sections" { return 1 }
"gc_sections" { return 1 }
"cxa_atexit" { return 1 }
default { return 0 }
}
}
}
# Return 1 if target default to short enums
proc check_effective_target_short_enums { } {
return [check_no_compiler_messages short_enums assembly {
enum foo { bar };
int s[sizeof (enum foo) == 1 ? 1 : -1];
}]
}
# Return 1 if target supports merging string constants at link time.
proc check_effective_target_string_merging { } {
return [check_no_messages_and_pattern string_merging \
"rodata\\.str" assembly {
const char *var = "String";
} {-O2}]
}
# Return 1 if programs are intended to be run on a simulator
# (i.e. slowly) rather than hardware (i.e. fast).
proc check_effective_target_simulator { } {
# All "src/sim" simulators set this one.
if [board_info target exists is_simulator] {
return [board_info target is_simulator]
}
# The "sid" simulators don't set that one, but at least they set
# this one.
if [board_info target exists slow_simulator] {
return [board_info target slow_simulator]
}
return 0
}