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[binutils-gdb] Set PLT_CFLAGS to "-fplt" if supported
- From: H.J.Lu <hjl at sourceware dot org>
- To: bfd-cvs at sourceware dot org
- Date: 27 Jul 2015 12:12:16 -0000
- Subject: [binutils-gdb] Set PLT_CFLAGS to "-fplt" if supported
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=e10461aebd2c9165c168583e70e7901e962ed1bb
commit e10461aebd2c9165c168583e70e7901e962ed1bb
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Jul 27 03:42:39 2015 -0700
Set PLT_CFLAGS to "-fplt" if supported
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.
Diff:
---
ld/testsuite/ChangeLog | 4 ++++
ld/testsuite/config/default.exp | 35 +++++++++++++++++++++++++++++++++++
2 files changed, 39 insertions(+)
diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index db1302f..a81149c 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -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
diff --git a/ld/testsuite/config/default.exp b/ld/testsuite/config/default.exp
index e25189b..5acc963 100644
--- a/ld/testsuite/config/default.exp
+++ b/ld/testsuite/config/default.exp
@@ -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 ""
+ }
+}