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Set PLT_CFLAGS to "-fplt" if supported

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GCC 6 supports -fno-plt.  But some linker tests expect PLT.  This patch
defines PLT_CFLAGS to "-fplt" if target compiler supports it.

	* config/default.exp (PLT_CFLAGS): New.
This commit is contained in:
H.J. Lu 2015-07-27 03:42:39 -07:00
parent 32f573bcb3
commit e10461aebd
2 changed files with 39 additions and 0 deletions
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4
ld/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2015-07-27 H.J. Lu <hongjiu.lu@intel.com>
* config/default.exp (PLT_CFLAGS): New.
2015-07-27 Szabolcs Nagy <szabolcs.nagy@arm.com>
PR ld/18705

35
ld/testsuite/config/default.exp
View File

@ -278,3 +278,38 @@ if ![info exists LD] then {
if ![info exists LDFLAGS] then {
set LDFLAGS {}
}
# Set PLT_CFLAGS to "-fplt" if target compiler supports it.
if { ![info exists PLT_CFLAGS] } then {
if { [which $CC] != 0 } {
# Check if gcc supports -fplt
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/plt[pid]"
set src ${basename}.c
set output ${basename}.o
set f [open $src "w"]
puts $f ""
close $f
remote_download host $src
set plt_available [run_host_cmd_yesno "$CC" "$flags -c -fplt $src -o $output"]
remote_file host delete $src
remote_file host delete $output
file delete $src
if { $plt_available == 1 } then {
set PLT_CFLAGS "-fplt"
} else {
set PLT_CFLAGS ""
}
} else {
set PLT_CFLAGS ""
}
}