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[PATCH][GCC][AARCH64] Add tests for pointer authentication B-key

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gcc/testsuite/ChangeLog
	* gcc.target/aarch64/return_address_sign_b_1.c: New file.
	* gcc.target/aarch64/return_address_sign_b_2.c: New file.
	* gcc.target/aarch64/return_address_sign_b_3.c: New file.
	* gcc.target/aarch64/return_address_sign_builtin.c: New file.
	* g++.target/aarch64/return_address_sign_ab_exception.C: New file.
	* g++.target/aarch64/return_address_sign_b_exception.C: New file.

From-SVN: r271954
This commit is contained in:
Sam Tebbs 2019-06-05 11:06:56 +00:00 • committed by Sam Tebbs
parent d301c1a41d
commit 2098f8ec2f
7 changed files with 164 additions and 0 deletions
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9
gcc/testsuite/ChangeLog
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@ -1,3 +1,12 @@
2019-06-05 Sam Tebbs <sam.tebbs@arm.com>
* gcc.target/aarch64/return_address_sign_b_1.c: New file.
* gcc.target/aarch64/return_address_sign_b_2.c: New file.
* gcc.target/aarch64/return_address_sign_b_3.c: New file.
* gcc.target/aarch64/return_address_sign_builtin.c: New file.
* g++.target/aarch64/return_address_sign_ab_exception.C: New file.
* g++.target/aarch64/return_address_sign_b_exception.C: New file.
2019-06-05 Jakub Jelinek <jakub@redhat.com>
PR debug/90733

30
gcc/testsuite/g++.target/aarch64/return_address_sign_ab_exception.C Normal file
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/* { dg-do run } */
/* { dg-options "--save-temps" } */
__attribute__((target("branch-protection=pac-ret+leaf")))
int foo_a () {
throw 22;
}
__attribute__((target("branch-protection=pac-ret+leaf+b-key")))
int foo_b () {
throw 22;
}
int main (int argc, char** argv) {
try {
foo_a ();
} catch (...) {
try {
foo_b ();
} catch (...) {
return 0;
}
}
return 1;
}
/* { dg-final { scan-assembler-times "paciasp" 1 } } */
/* { dg-final { scan-assembler-times "pacibsp" 1 } } */
/* { dg-final { scan-assembler-times ".cfi_b_key_frame" 1 } } */

17
gcc/testsuite/g++.target/aarch64/return_address_sign_b_exception.C Normal file
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/* { dg-do run } */
/* { dg-options "-mbranch-protection=pac-ret+leaf+b-key --save-temps" } */
int foo () {
throw 22;
}
int main (int argc, char** argv) {
try {
foo();
} catch (...) {
return 0;
}
return 1;
}
/* { dg-final { scan-assembler-times ".cfi_b_key_frame" 2 } } */

52
gcc/testsuite/gcc.target/aarch64/return_address_sign_b_1.c Normal file
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/* Testing return address signing where no combined instructions used. */
/* { dg-do compile } */
/* { dg-options "-O2 -mbranch-protection=pac-ret+leaf+b-key" } */
/* { dg-require-effective-target lp64 } */
int foo (int);
/* sibcall only. */
int __attribute__ ((target ("arch=armv8.3-a")))
func1 (int a, int b)
{
/* pacibsp */
return foo (a + b);
/* autibsp */
}
/* non-leaf function with sibcall. */
int __attribute__ ((target ("arch=armv8.3-a")))
func2 (int a, int b)
{
/* pacibsp */
if (a < b)
return b;
a = foo (b);
return foo (a);
/* autibsp */
}
/* non-leaf function, legacy arch. */
int __attribute__ ((target ("arch=armv8.2-a")))
func3 (int a, int b, int c)
{
/* pacibsp */
return a + foo (b) + c;
/* autibsp */
}
/* eh_return. */
void __attribute__ ((target ("arch=armv8.3-a")))
func4 (long offset, void *handler, int *ptr, int imm1, int imm2)
{
/* pacibsp */
*ptr = imm1 + foo (imm1) + imm2;
__builtin_eh_return (offset, handler);
/* autibsp */
return;
}
/* { dg-final { scan-assembler-times "pacibsp" 4 } } */
/* { dg-final { scan-assembler-times "autibsp" 4 } } */

18
gcc/testsuite/gcc.target/aarch64/return_address_sign_b_2.c Normal file
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/* Testing return address signing where combined instructions used. */
/* { dg-do compile } */
/* { dg-options "-O2 -mbranch-protection=pac-ret+leaf+b-key" } */
/* { dg-require-effective-target lp64 } */
int foo (int);
int bar (int, int);
int __attribute__ ((target ("arch=armv8.3-a")))
func1 (int a, int b, int c)
{
/* pacibsp */
return a + foo (b) + c;
/* retab */
}
/* { dg-final { scan-assembler-times "pacibsp" 1 } } */
/* { dg-final { scan-assembler-times "retab" 1 } } */

22
gcc/testsuite/gcc.target/aarch64/return_address_sign_b_3.c Normal file
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/* Testing the disable of return address signing. */
/* { dg-do compile } */
/* { dg-options "-O2 -mbranch-protection=pac-ret+leaf+b-key" } */
/* { dg-require-effective-target lp64 } */
int bar (int, int);
int __attribute__ ((target ("arch=armv8.3-a,branch-protection=pac-ret+b-key")))
func1_leaf (int a, int b, int c, int d)
{
return a + b + c + d;
}
int __attribute__ ((target ("arch=armv8.3-a,branch-protection=none")))
func2_none (int a, int b, int c, int d)
{
return c + bar (a, b) + d;
}
/* { dg-final { scan-assembler-not "pacibsp" } } */
/* { dg-final { scan-assembler-not "autibsp" } } */
/* { dg-final { scan-assembler-not "retab" } } */

16
gcc/testsuite/gcc.target/aarch64/return_address_sign_builtin.c Normal file
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/* { dg-do compile } */
/* { dg-options "-mbranch-protection=pac-ret+leaf+b-key" } */
/* The correct pauth instruction should be generated no matter the return
address signing key/scope specified in the options. */
int foo() {
/* { dg-final { scan-assembler-times "pacia1716" 1 } } */
__builtin_aarch64_pacia1716(0, 0);
/* { dg-final { scan-assembler-times "pacib1716" 1 } } */
__builtin_aarch64_pacib1716(0, 0);
/* { dg-final { scan-assembler-times "autia1716" 1 } } */
__builtin_aarch64_autia1716(0, 0);
/* { dg-final { scan-assembler-times "autib1716" 1 } } */
__builtin_aarch64_autib1716(0, 0);
}