rs6000: testsuite: Add rop_ok effective-target function

This patch adds a new effective-target function that tests whether
it is safe to emit the ROP-protect instructions and updates the
ROP test cases to use it.

2021-12-03  Peter Bergner  <bergner@linux.ibm.com>

gcc/testsuite/
	* lib/target-supports.exp (check_effective_target_rop_ok): New function.
	* gcc.target/powerpc/rop-1.c: Use it.
	* gcc.target/powerpc/rop-2.c: Likewise.
	* gcc.target/powerpc/rop-3.c: Likewise.
	* gcc.target/powerpc/rop-4.c: Likewise.
	* gcc.target/powerpc/rop-5.c: Likewise.

diff --git a/gcc/testsuite/gcc.target/powerpc/rop-1.c b/gcc/testsuite/gcc.target/powerpc/rop-1.c
index 8cedcb6668aa039bcccaf8f13b2ac11e058a104f..12893dec02703514a8c0bdafee58533437af1a67 100644 (file)
--- a/gcc/testsuite/gcc.target/powerpc/rop-1.c
+++ b/gcc/testsuite/gcc.target/powerpc/rop-1.c
@@ -1,6 +1,6 @@
 /* { dg-do compile } */
 /* { dg-options "-O2 -mdejagnu-cpu=power10 -mrop-protect" } */
-/* { dg-require-effective-target powerpc_elfv2 } */
+/* { dg-require-effective-target rop_ok } */
 
 /* Verify that ROP-protect instructions are inserted when a
    call is present.  */

diff --git a/gcc/testsuite/gcc.target/powerpc/rop-2.c b/gcc/testsuite/gcc.target/powerpc/rop-2.c
index c556952aec1b277397cdd0f004e272058aa9d134..5f1d7c39bfc0bc9af47571e11938ebc2eb83253a 100644 (file)
--- a/gcc/testsuite/gcc.target/powerpc/rop-2.c
+++ b/gcc/testsuite/gcc.target/powerpc/rop-2.c
@@ -1,6 +1,6 @@
 /* { dg-do compile } */
 /* { dg-options "-O2 -mdejagnu-cpu=power10 -mrop-protect -mprivileged" } */
-/* { dg-require-effective-target powerpc_elfv2 } */
+/* { dg-require-effective-target rop_ok } */
 
 /* Verify that privileged ROP-protect instructions are inserted when a
    call is present.  */

diff --git a/gcc/testsuite/gcc.target/powerpc/rop-3.c b/gcc/testsuite/gcc.target/powerpc/rop-3.c
index 8d03792e3e5e16b352dbe184a1a7433fc5980449..d2ef3bf4badc6df880ae521317355d9a8d7661ed 100644 (file)
--- a/gcc/testsuite/gcc.target/powerpc/rop-3.c
+++ b/gcc/testsuite/gcc.target/powerpc/rop-3.c
@@ -1,5 +1,5 @@
 /* { dg-do run { target { power10_hw } } } */
-/* { dg-require-effective-target powerpc_elfv2 } */
+/* { dg-require-effective-target rop_ok } */
 /* { dg-options "-O2 -mdejagnu-cpu=power10 -mrop-protect" } */
 
 /* Verify that ROP-protect instructions execute correctly when a

diff --git a/gcc/testsuite/gcc.target/powerpc/rop-4.c b/gcc/testsuite/gcc.target/powerpc/rop-4.c
index dcf47c63fb794e6736e6005e711cd70fbd549114..80faa9b3f7b420e36058ef93996877ff7ef817a2 100644 (file)
--- a/gcc/testsuite/gcc.target/powerpc/rop-4.c
+++ b/gcc/testsuite/gcc.target/powerpc/rop-4.c
@@ -1,6 +1,6 @@
 /* { dg-do compile } */
 /* { dg-options "-O2 -mdejagnu-cpu=power10 -mrop-protect" } */
-/* { dg-require-effective-target powerpc_elfv2 } */
+/* { dg-require-effective-target rop_ok } */
 
 /* Verify that no ROP-protect instructions are inserted when no
    call is present.  */

diff --git a/gcc/testsuite/gcc.target/powerpc/rop-5.c b/gcc/testsuite/gcc.target/powerpc/rop-5.c
index f2594df8a44eb454189bf09cecf7a4060cc16c4e..f7970f1fe25b4f0a30accb9ba54c121c3acffbd7 100644 (file)
--- a/gcc/testsuite/gcc.target/powerpc/rop-5.c
+++ b/gcc/testsuite/gcc.target/powerpc/rop-5.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-require-effective-target powerpc_elfv2 } */
+/* { dg-require-effective-target rop_ok } */
 /* { dg-options "-O2 -mdejagnu-cpu=power10 -mrop-protect" } */
 
 /* Verify that __ROP_PROTECT__ is predefined for -mrop-protect.  */

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index caa8ab930566f02bb67c89de6d68f7199c937fa7..7956c387c556c338484dc1f732f0fa6bcb8e3dca 100644 (file)
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -6628,6 +6628,13 @@ proc check_effective_target_powerpc_elfv2 { } {
     }
 }
 
+# Return 1 if this is a PowerPC target supporting -mrop-protect
+
+proc check_effective_target_rop_ok { } {
+    return [check_effective_target_power10_ok]
+           && [check_effective_target_powerpc_elfv2]
+}
+
 # The VxWorks SPARC simulator accepts only EM_SPARC executables and
 # chokes on EM_SPARC32PLUS or EM_SPARCV9 executables.  Return 1 if the
 # test environment appears to run executables on such a simulator.