kselftest/arm64: Use the tools/include compiler.h rather than our own

The BTI test program started life as standalone programs outside the
kselftest suite so provided it's own compiler.h. Now that we have updated
the tools/include compiler.h to have all the definitions that we are using
and the arm64 selftsets pull in tools/includes let's drop our custom
version.

__unreachable() is named unreachable() there requiring an update in the
code.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230728-arm64-signal-memcpy-fix-v4-6-0c1290db5d46@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/tools/testing/selftests/arm64/bti/compiler.h b/tools/testing/selftests/arm64/bti/compiler.h
deleted file mode 100644 (file)
index ebb6204..0000000
--- a/tools/testing/selftests/arm64/bti/compiler.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2019  Arm Limited
- * Original author: Dave Martin <Dave.Martin@arm.com>
- */
-
-#ifndef COMPILER_H
-#define COMPILER_H
-
-#define __always_unused __attribute__((__unused__))
-#define __noreturn __attribute__((__noreturn__))
-#define __unreachable() __builtin_unreachable()
-
-/* curse(e) has value e, but the compiler cannot assume so */
-#define curse(e) ({                            \
-       __typeof__(e) __curse_e = (e);          \
-       asm ("" : "+r" (__curse_e));            \
-       __curse_e;                              \
-})
-
-#endif /* ! COMPILER_H */

diff --git a/tools/testing/selftests/arm64/bti/system.c b/tools/testing/selftests/arm64/bti/system.c
index 6385d8d..93d772b 100644 (file)
--- a/tools/testing/selftests/arm64/bti/system.c
+++ b/tools/testing/selftests/arm64/bti/system.c
@@ -8,12 +8,10 @@
 
 #include <asm/unistd.h>
 
-#include "compiler.h"
-
 void __noreturn exit(int n)
 {
        syscall(__NR_exit, n);
-       __unreachable();
+       unreachable();
 }
 
 ssize_t write(int fd, const void *buf, size_t size)

diff --git a/tools/testing/selftests/arm64/bti/system.h b/tools/testing/selftests/arm64/bti/system.h
index aca1185..2e9ee12 100644 (file)
--- a/tools/testing/selftests/arm64/bti/system.h
+++ b/tools/testing/selftests/arm64/bti/system.h
@@ -14,12 +14,12 @@ typedef __kernel_size_t size_t;
 typedef __kernel_ssize_t ssize_t;
 
 #include <linux/errno.h>
+#include <linux/compiler.h>
+
 #include <asm/hwcap.h>
 #include <asm/ptrace.h>
 #include <asm/unistd.h>
 
-#include "compiler.h"
-
 long syscall(int nr, ...);
 
 void __noreturn exit(int n);

diff --git a/tools/testing/selftests/arm64/bti/test.c b/tools/testing/selftests/arm64/bti/test.c
index 2cd8dce..28a8e8a 100644 (file)
--- a/tools/testing/selftests/arm64/bti/test.c
+++ b/tools/testing/selftests/arm64/bti/test.c
@@ -17,7 +17,6 @@
 typedef struct ucontext ucontext_t;
 
 #include "btitest.h"
-#include "compiler.h"
 #include "signal.h"
 
 #define EXPECTED_TESTS 18