tools: Copy uapi/linux/hw_breakpoint.h from the kernel

To allow the build to complete on older systems, where those files are
either not uptodate, lacking some recent additions or not present at
all.

And check if the copy drifts from the kernel.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-3jz31pz4nw526uko5da9e7o3@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

3 files changed, 34 insertions, 2 deletions

diff --git a/tools/include/uapi/linux/hw_breakpoint.h b/tools/include/uapi/linux/hw_breakpoint.h
new file mode 100644
index 000000000000..b04000a2296a
--- /dev/null
+++ b/tools/include/uapi/linux/hw_breakpoint.h
@@ -0,0 +1,30 @@
+#ifndef _UAPI_LINUX_HW_BREAKPOINT_H
+#define _UAPI_LINUX_HW_BREAKPOINT_H
+
+enum {
+        HW_BREAKPOINT_LEN_1 = 1,
+        HW_BREAKPOINT_LEN_2 = 2,
+        HW_BREAKPOINT_LEN_4 = 4,
+        HW_BREAKPOINT_LEN_8 = 8,
+};
+
+enum {
+        HW_BREAKPOINT_EMPTY     = 0,
+        HW_BREAKPOINT_R         = 1,
+        HW_BREAKPOINT_W         = 2,
+        HW_BREAKPOINT_RW        = HW_BREAKPOINT_R | HW_BREAKPOINT_W,
+        HW_BREAKPOINT_X         = 4,
+        HW_BREAKPOINT_INVALID   = HW_BREAKPOINT_RW | HW_BREAKPOINT_X,
+};
+
+enum bp_type_idx {
+        TYPE_INST       = 0,
+#ifdef CONFIG_HAVE_MIXED_BREAKPOINTS_REGS
+        TYPE_DATA       = 0,
+#else
+        TYPE_DATA       = 1,
+#endif
+        TYPE_MAX
+};
+
+#endif /* _UAPI_LINUX_HW_BREAKPOINT_H */
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index d15c052ccb7b..a4aefaeff355 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -61,6 +61,7 @@ tools/include/linux/list.h
 tools/include/linux/log2.h
 tools/include/uapi/linux/bpf.h
 tools/include/uapi/linux/bpf_common.h
+tools/include/uapi/linux/hw_breakpoint.h
 tools/include/uapi/linux/perf_event.h
 tools/include/linux/poison.h
 tools/include/linux/rbtree.h
@@ -82,10 +83,8 @@ arch/*/include/asm/unistd*.h
 arch/*/include/uapi/asm/unistd*.h
 tools/arch/*/include/uapi/asm/perf_regs.h
 include/linux/poison.h
-include/linux/hw_breakpoint.h
 include/uapi/linux/const.h
 include/uapi/linux/swab.h
-include/uapi/linux/hw_breakpoint.h
 arch/x86/include/asm/svm.h
 arch/x86/include/asm/vmx.h
 arch/x86/include/asm/kvm_host.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 34b91ba8b425..0d07672c3af7 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -348,6 +348,9 @@ $(PERF_IN): prepare FORCE
         @(test -f ../../include/uapi/linux/perf_event.h && ( \
         (diff -B ../include/uapi/linux/perf_event.h ../../include/uapi/linux/perf_event.h >/dev/null) \
         || echo "Warning: tools/include/uapi/linux/perf_event.h differs from kernel" >&2 )) || true
+        @(test -f ../../include/uapi/linux/hw_breakpoint.h && ( \
+        (diff -B ../include/uapi/linux/hw_breakpoint.h ../../include/uapi/linux/hw_breakpoint.h >/dev/null) \
+        || echo "Warning: tools/include/uapi/linux/hw_breakpoint.h differs from kernel" >&2 )) || true
         @(test -f ../../arch/x86/include/asm/disabled-features.h && ( \
         (diff -B ../arch/x86/include/asm/disabled-features.h ../../arch/x86/include/asm/disabled-features.h >/dev/null) \
         || echo "Warning: tools/arch/x86/include/asm/disabled-features.h differs from kernel" >&2 )) || true