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x86: Run GNU2 TLS tests with working GNU2 TLS support

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Check if GNU2 TLS really works before running GNU2 TLS tests.

	* testsuite/ld-i386/tls.exp: Run GNU2 TLS tests only if there
	is working GNU2 TLS support.
	* testsuite/ld-x86-64/tls.exp: Likewise.
	* testsuite/lib/ld-lib.exp (check_gnu2_tls_available): New proc.
This commit is contained in:
H.J. Lu 2017-05-01 11:02:55 -07:00
parent 3f380b5027
commit 0aae7e72a2
4 changed files with 81 additions and 0 deletions
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7
ld/ChangeLog
View File

@ -1,3 +1,10 @@
2017-05-01 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/ld-i386/tls.exp: Run GNU2 TLS tests only if there
is working GNU2 TLS support.
* testsuite/ld-x86-64/tls.exp: Likewise.
* testsuite/lib/ld-lib.exp (check_gnu2_tls_available): New proc.
2017-04-28 H.J. Lu <hongjiu.lu@intel.com> 2017-04-28 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/config/default.exp (GNU2_CFLAGS): New. Set * testsuite/config/default.exp (GNU2_CFLAGS): New. Set

5
ld/testsuite/ld-i386/tls.exp
View File

@ -177,6 +177,11 @@ run_ld_link_exec_tests [list \
] \ ] \
] ]
# Run-time tests which require working GNU2 TLS support.
if { ![check_gnu2_tls_available] } {
return
}
run_cc_link_tests [list \ run_cc_link_tests [list \
[list \ [list \
"Build libtlsdesc1.so" \ "Build libtlsdesc1.so" \

5
ld/testsuite/ld-x86-64/tls.exp
View File

@ -201,6 +201,11 @@ run_cc_link_tests [list \
] \ ] \
] ]
# Run-time tests which require working GNU2 TLS support.
if { ![check_gnu2_tls_available] } {
return
}
run_ld_link_exec_tests [list \ run_ld_link_exec_tests [list \
[list \ [list \
"Run tlsdesc1" \ "Run tlsdesc1" \

64
ld/testsuite/lib/ld-lib.exp
View File

@ -2210,3 +2210,67 @@ proc check_libdl_available { } {
} }
return $libdl_available_saved return $libdl_available_saved
} }
# Returns true if GNU2 TLS works.
proc check_gnu2_tls_available { } {
global gnu2_tls_available_saved
global CC
global GNU2_CFLAGS
if {![info exists gnu2_tls_available_saved]} {
if { [which $CC] == 0 || "$GNU2_CFLAGS" == "" } {
set gnu2_tls_available_saved 0
return 0
}
# Check if GNU2 TLS works.
set flags "$GNU2_CFLAGS"
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_tls[pid]"
set src1 ${basename}1.c
set output1 ${basename}.so
set f [open $src1 "w"]
puts $f "extern __thread int zzz;"
puts $f "int foo (void)"
puts $f "{"
puts $f " return zzz;"
puts $f "}"
close $f
if [is_remote host] {
set src1 [remote_download host $src1]
}
set src2 ${basename}2.c
set output2 ${basename}.exe
set f [open $src2 "w"]
puts $f "__thread int zzz = 20;"
puts $f "extern int foo (void);"
puts $f "int main (void)"
puts $f "{"
puts $f " if (foo () != 20) __builtin_abort ();"
puts $f " return 0; "
puts $f "}"
close $f
if [is_remote host] {
set src2 [remote_download host $src2]
}
set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "-fPIC -shared $flags $src1 -o $output1"]
if { $gnu2_tls_available_saved == 1 } {
set gnu2_tls_available_saved [run_host_cmd_yesno "$CC" "$flags $src2 $output1 -o $output2"]
if { $gnu2_tls_available_saved == 1 } {
set gnu2_tls_available_saved [run_host_cmd_yesno "$output2" ""]
}
}
remote_file host delete $src1
remote_file host delete $output1
remote_file host delete $src2
remote_file host delete $output2
file delete $src1 $src2
}
return $gnu2_tls_available_saved
}