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Date: Wed, 2 May 2018 13:33:25 -0700
From: Laura Abbott <labbott@...hat.com>
To: Alexander Popov <alex.popov@...ux.com>,
Kees Cook <keescook@...omium.org>,
Mark Rutland <mark.rutland@....com>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc: Laura Abbott <labbott@...hat.com>,
kernel-hardening@...ts.openwall.com,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] stackleak: Update for arm64
arm64 has another layer of indirection in the RTL.
Account for this in the plugin.
Signed-off-by: Laura Abbott <labbott@...hat.com>
---
Fixed from previous version to be a vector expression.
---
scripts/gcc-plugins/stackleak_plugin.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/scripts/gcc-plugins/stackleak_plugin.c b/scripts/gcc-plugins/stackleak_plugin.c
index 6ac2a055ec61..0a55ecaf44df 100644
--- a/scripts/gcc-plugins/stackleak_plugin.c
+++ b/scripts/gcc-plugins/stackleak_plugin.c
@@ -253,6 +253,10 @@ static unsigned int stackleak_cleanup_execute(void)
* that insn.
*/
body = PATTERN(insn);
+ /* arm64 is different */
+ if (GET_CODE(body) == PARALLEL)
+ body = XVECEXP(body, 0, 0);
+
if (GET_CODE(body) != CALL)
continue;
--
2.14.3
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