tools: Move x86 syscall number fallbacks to .../uapi/

Move unistd_{32,64}.h from x86/include/asm to x86/include/uapi/asm so
that tools/selftests that install kernel headers, e.g. KVM selftests, can
include non-uapi tools headers, e.g. to get 'struct list_head', without
effectively overriding the installed non-tool uapi headers.

Swapping KVM's search order, e.g. to search the kernel headers before
tool headers, is not a viable option as doing results in linux/type.h and
other core headers getting pulled from the kernel headers, which do not
have the kernel-internal typedefs that are used through tools, including
many files outside of selftests/kvm's control.

Prior to commit 6e0b7617551a ("perf tools: Move syscall number fallbacks
from perf-sys.h to tools/arch/x86/include/asm/"), the handcoded numbers
were actual fallbacks, i.e. overriding unistd_{32,64}.h from the kernel
headers was unintentional.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210901203030.1292304-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/tools/arch/x86/include/asm/unistd_32.h b/tools/arch/x86/include/asm/unistd_32.h
deleted file mode 100644 (file)
index 60a89db..0000000
--- a/tools/arch/x86/include/asm/unistd_32.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __NR_perf_event_open
-# define __NR_perf_event_open 336
-#endif
-#ifndef __NR_futex
-# define __NR_futex 240
-#endif
-#ifndef __NR_gettid
-# define __NR_gettid 224
-#endif
-#ifndef __NR_getcpu
-# define __NR_getcpu 318
-#endif
-#ifndef __NR_setns
-# define __NR_setns 346
-#endif

diff --git a/tools/arch/x86/include/asm/unistd_64.h b/tools/arch/x86/include/asm/unistd_64.h
deleted file mode 100644 (file)
index 4205ed4..0000000
--- a/tools/arch/x86/include/asm/unistd_64.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __NR_userfaultfd
-#define __NR_userfaultfd 282
-#endif
-#ifndef __NR_perf_event_open
-# define __NR_perf_event_open 298
-#endif
-#ifndef __NR_futex
-# define __NR_futex 202
-#endif
-#ifndef __NR_gettid
-# define __NR_gettid 186
-#endif
-#ifndef __NR_getcpu
-# define __NR_getcpu 309
-#endif
-#ifndef __NR_setns
-#define __NR_setns 308
-#endif

diff --git a/tools/arch/x86/include/uapi/asm/unistd_32.h b/tools/arch/x86/include/uapi/asm/unistd_32.h
new file mode 100644 (file)
index 0000000..60a89db
--- /dev/null
+++ b/tools/arch/x86/include/uapi/asm/unistd_32.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NR_perf_event_open
+# define __NR_perf_event_open 336
+#endif
+#ifndef __NR_futex
+# define __NR_futex 240
+#endif
+#ifndef __NR_gettid
+# define __NR_gettid 224
+#endif
+#ifndef __NR_getcpu
+# define __NR_getcpu 318
+#endif
+#ifndef __NR_setns
+# define __NR_setns 346
+#endif

diff --git a/tools/arch/x86/include/uapi/asm/unistd_64.h b/tools/arch/x86/include/uapi/asm/unistd_64.h
new file mode 100644 (file)
index 0000000..4205ed4
--- /dev/null
+++ b/tools/arch/x86/include/uapi/asm/unistd_64.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NR_userfaultfd
+#define __NR_userfaultfd 282
+#endif
+#ifndef __NR_perf_event_open
+# define __NR_perf_event_open 298
+#endif
+#ifndef __NR_futex
+# define __NR_futex 202
+#endif
+#ifndef __NR_gettid
+# define __NR_gettid 186
+#endif
+#ifndef __NR_getcpu
+# define __NR_getcpu 309
+#endif
+#ifndef __NR_setns
+#define __NR_setns 308
+#endif