linux-kernel - [PATCH] UBSAN: Add __ubsan_handle_type_mismatch

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Date:   Tue, 10 Oct 2017 00:06:03 -0700
From:   Prasad Sodagudi <psodagud@...eaurora.org>
To:     aryabinin@...tuozzo.com, nicolas.iooss_linux@....org,
        akpm@...ux-foundation.org, mingo@...nel.org
Cc:     linux-kernel@...r.kernel.org, psodagud@...eaurora.org
Subject: [PATCH] UBSAN: Add __ubsan_handle_type_mismatch_v1 handler

In LLVM __ubsan_handle_type_mismatch handler is renamed to
 __ubsan_handle_type_mismatch_v1. Add support for
__ubsan_handle_type_mismatch_v1 handler to avoid compilation
issues with latest llvm tool chain. Also keeping
__ubsan_handle_type_mismatch handler for backward compatibility.

Signed-off-by: Prasad Sodagudi <psodagud@...eaurora.org>
---
 lib/ubsan.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/ubsan.c b/lib/ubsan.c
index fb0409d..9baf17d 100644
--- a/lib/ubsan.c
+++ b/lib/ubsan.c
@@ -328,6 +328,14 @@ void __ubsan_handle_type_mismatch(struct type_mismatch_data *data,
 }
 EXPORT_SYMBOL(__ubsan_handle_type_mismatch);
 
+void __ubsan_handle_type_mismatch_v1(struct type_mismatch_data *data,
+				unsigned long ptr)
+{
+	__ubsan_handle_type_mismatch(data, ptr);
+}
+EXPORT_SYMBOL(__ubsan_handle_type_mismatch_v1);
+
+
 void __ubsan_handle_nonnull_return(struct nonnull_return_data *data)
 {
 	unsigned long flags;
-- 
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