[PATCH v4 6/7] tools: separate out shared radix-tree components

From: Lorenzo Stoakes
Date: Mon Jul 29 2024 - 07:53:42 EST

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The core components contained within the radix-tree tests which provide
shims for kernel headers and access to the maple tree are useful for
testing other things, so separate them out and make the radix tree tests
dependent on the shared components.

This lays the groundwork for us to add VMA tests of the newly introduced
vma.c file.

Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
---
tools/testing/radix-tree/.gitignore | 1 +
tools/testing/radix-tree/Makefile | 72 ++++---------------
tools/testing/radix-tree/xarray.c | 10 +--
.../generated => shared}/autoconf.h | 0
tools/testing/{radix-tree => shared}/linux.c | 0
.../{radix-tree => shared}/linux/bug.h | 0
.../{radix-tree => shared}/linux/cpu.h | 0
.../{radix-tree => shared}/linux/idr.h | 0
.../{radix-tree => shared}/linux/init.h | 0
.../{radix-tree => shared}/linux/kconfig.h | 0
.../{radix-tree => shared}/linux/kernel.h | 0
.../{radix-tree => shared}/linux/kmemleak.h | 0
.../{radix-tree => shared}/linux/local_lock.h | 0
.../{radix-tree => shared}/linux/lockdep.h | 0
.../{radix-tree => shared}/linux/maple_tree.h | 0
.../{radix-tree => shared}/linux/percpu.h | 0
.../{radix-tree => shared}/linux/preempt.h | 0
.../{radix-tree => shared}/linux/radix-tree.h | 0
.../{radix-tree => shared}/linux/rcupdate.h | 0
.../{radix-tree => shared}/linux/xarray.h | 0
tools/testing/shared/maple-shared.h | 9 +++
tools/testing/shared/maple-shim.c | 7 ++
tools/testing/shared/shared.h | 33 +++++++++
tools/testing/shared/shared.mk | 72 +++++++++++++++++++
.../trace/events/maple_tree.h | 0
tools/testing/shared/xarray-shared.c | 5 ++
tools/testing/shared/xarray-shared.h | 4 ++
27 files changed, 144 insertions(+), 69 deletions(-)
rename tools/testing/{radix-tree/generated => shared}/autoconf.h (100%)
rename tools/testing/{radix-tree => shared}/linux.c (100%)
rename tools/testing/{radix-tree => shared}/linux/bug.h (100%)
rename tools/testing/{radix-tree => shared}/linux/cpu.h (100%)
rename tools/testing/{radix-tree => shared}/linux/idr.h (100%)
rename tools/testing/{radix-tree => shared}/linux/init.h (100%)
rename tools/testing/{radix-tree => shared}/linux/kconfig.h (100%)
rename tools/testing/{radix-tree => shared}/linux/kernel.h (100%)
rename tools/testing/{radix-tree => shared}/linux/kmemleak.h (100%)
rename tools/testing/{radix-tree => shared}/linux/local_lock.h (100%)
rename tools/testing/{radix-tree => shared}/linux/lockdep.h (100%)
rename tools/testing/{radix-tree => shared}/linux/maple_tree.h (100%)
rename tools/testing/{radix-tree => shared}/linux/percpu.h (100%)
rename tools/testing/{radix-tree => shared}/linux/preempt.h (100%)
rename tools/testing/{radix-tree => shared}/linux/radix-tree.h (100%)
rename tools/testing/{radix-tree => shared}/linux/rcupdate.h (100%)
rename tools/testing/{radix-tree => shared}/linux/xarray.h (100%)
create mode 100644 tools/testing/shared/maple-shared.h
create mode 100644 tools/testing/shared/maple-shim.c
create mode 100644 tools/testing/shared/shared.h
create mode 100644 tools/testing/shared/shared.mk
rename tools/testing/{radix-tree => shared}/trace/events/maple_tree.h (100%)
create mode 100644 tools/testing/shared/xarray-shared.c
create mode 100644 tools/testing/shared/xarray-shared.h

diff --git a/tools/testing/radix-tree/.gitignore b/tools/testing/radix-tree/.gitignore
index 49bccb90c35b..ce167a761981 100644
--- a/tools/testing/radix-tree/.gitignore
+++ b/tools/testing/radix-tree/.gitignore
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
+generated/autoconf.h
generated/bit-length.h
generated/map-shift.h
idr.c
diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index d1acd7d58850..8b3591a51e1f 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -1,77 +1,29 @@
# SPDX-License-Identifier: GPL-2.0

-CFLAGS += -I. -I../../include -I../../../lib -g -Og -Wall \
- -D_LGPL_SOURCE -fsanitize=address -fsanitize=undefined
-LDFLAGS += -fsanitize=address -fsanitize=undefined
-LDLIBS+= -lpthread -lurcu
-TARGETS = main idr-test multiorder xarray maple
-LIBS := slab.o find_bit.o bitmap.o hweight.o vsprintf.o
-CORE_OFILES := xarray.o radix-tree.o idr.o linux.o test.o maple.o $(LIBS)
-OFILES = main.o $(CORE_OFILES) regression1.o regression2.o regression3.o \
- regression4.o tag_check.o multiorder.o idr-test.o iteration_check.o \
- iteration_check_2.o benchmark.o
-
-ifndef SHIFT
- SHIFT=3
-endif
+.PHONY: clean

-ifeq ($(BUILD), 32)
- CFLAGS += -m32
- LDFLAGS += -m32
-LONG_BIT := 32
-endif
-
-ifndef LONG_BIT
-LONG_BIT := $(shell getconf LONG_BIT)
-endif
+TARGETS = main idr-test multiorder xarray maple
+CORE_OFILES = $(SHARED_OFILES) xarray.o maple.o test.o
+OFILES = main.o $(CORE_OFILES) regression1.o regression2.o \
+ regression3.o regression4.o tag_check.o multiorder.o idr-test.o \
+ iteration_check.o iteration_check_2.o benchmark.o

targets: generated/map-shift.h generated/bit-length.h $(TARGETS)

+include ../shared/shared.mk
+
main: $(OFILES)

idr-test.o: ../../../lib/test_ida.c
idr-test: idr-test.o $(CORE_OFILES)

-xarray: $(CORE_OFILES)
+xarray: $(CORE_OFILES) xarray.o

-maple: $(CORE_OFILES)
+maple: $(CORE_OFILES) maple.o

multiorder: multiorder.o $(CORE_OFILES)

clean:
- $(RM) $(TARGETS) *.o radix-tree.c idr.c generated/map-shift.h generated/bit-length.h
-
-vpath %.c ../../lib
-
-$(OFILES): Makefile *.h */*.h generated/map-shift.h generated/bit-length.h \
- ../../include/linux/*.h \
- ../../include/asm/*.h \
- ../../../include/linux/xarray.h \
- ../../../include/linux/maple_tree.h \
- ../../../include/linux/radix-tree.h \
- ../../../lib/radix-tree.h \
- ../../../include/linux/idr.h
-
-radix-tree.c: ../../../lib/radix-tree.c
- sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline //' < $< > $@
-
-idr.c: ../../../lib/idr.c
- sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline //' < $< > $@
-
-xarray.o: ../../../lib/xarray.c ../../../lib/test_xarray.c
-
-maple.o: ../../../lib/maple_tree.c ../../../lib/test_maple_tree.c
-
-generated/map-shift.h:
- @if ! grep -qws $(SHIFT) generated/map-shift.h; then \
- echo "#define XA_CHUNK_SHIFT $(SHIFT)" > \
- generated/map-shift.h; \
- fi
-
-generated/bit-length.h: FORCE
- @if ! grep -qws CONFIG_$(LONG_BIT)BIT generated/bit-length.h; then \
- echo "Generating $@"; \
- echo "#define CONFIG_$(LONG_BIT)BIT 1" > $@; \
- fi
+ $(RM) $(TARGETS) *.o radix-tree.c idr.c generated/*

-FORCE: ;
+$(OFILES): $(SHARED_DEPS) *.h
diff --git a/tools/testing/radix-tree/xarray.c b/tools/testing/radix-tree/xarray.c
index d0e53bff1eb6..253208a8541b 100644
--- a/tools/testing/radix-tree/xarray.c
+++ b/tools/testing/radix-tree/xarray.c
@@ -4,17 +4,9 @@
* Copyright (c) 2018 Matthew Wilcox <willy@xxxxxxxxxxxxx>
*/

-#define XA_DEBUG
+#include "xarray-shared.h"
#include "test.h"

-#define module_init(x)
-#define module_exit(x)
-#define MODULE_AUTHOR(x)
-#define MODULE_DESCRIPTION(X)
-#define MODULE_LICENSE(x)
-#define dump_stack() assert(0)
-
-#include "../../../lib/xarray.c"
#undef XA_DEBUG
#include "../../../lib/test_xarray.c"

diff --git a/tools/testing/radix-tree/generated/autoconf.h b/tools/testing/shared/autoconf.h
similarity index 100%
rename from tools/testing/radix-tree/generated/autoconf.h
rename to tools/testing/shared/autoconf.h
diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/shared/linux.c
similarity index 100%
rename from tools/testing/radix-tree/linux.c
rename to tools/testing/shared/linux.c
diff --git a/tools/testing/radix-tree/linux/bug.h b/tools/testing/shared/linux/bug.h
similarity index 100%
rename from tools/testing/radix-tree/linux/bug.h
rename to tools/testing/shared/linux/bug.h
diff --git a/tools/testing/radix-tree/linux/cpu.h b/tools/testing/shared/linux/cpu.h
similarity index 100%
rename from tools/testing/radix-tree/linux/cpu.h
rename to tools/testing/shared/linux/cpu.h
diff --git a/tools/testing/radix-tree/linux/idr.h b/tools/testing/shared/linux/idr.h
similarity index 100%
rename from tools/testing/radix-tree/linux/idr.h
rename to tools/testing/shared/linux/idr.h
diff --git a/tools/testing/radix-tree/linux/init.h b/tools/testing/shared/linux/init.h
similarity index 100%
rename from tools/testing/radix-tree/linux/init.h
rename to tools/testing/shared/linux/init.h
diff --git a/tools/testing/radix-tree/linux/kconfig.h b/tools/testing/shared/linux/kconfig.h
similarity index 100%
rename from tools/testing/radix-tree/linux/kconfig.h
rename to tools/testing/shared/linux/kconfig.h
diff --git a/tools/testing/radix-tree/linux/kernel.h b/tools/testing/shared/linux/kernel.h
similarity index 100%
rename from tools/testing/radix-tree/linux/kernel.h
rename to tools/testing/shared/linux/kernel.h
diff --git a/tools/testing/radix-tree/linux/kmemleak.h b/tools/testing/shared/linux/kmemleak.h
similarity index 100%
rename from tools/testing/radix-tree/linux/kmemleak.h
rename to tools/testing/shared/linux/kmemleak.h
diff --git a/tools/testing/radix-tree/linux/local_lock.h b/tools/testing/shared/linux/local_lock.h
similarity index 100%
rename from tools/testing/radix-tree/linux/local_lock.h
rename to tools/testing/shared/linux/local_lock.h
diff --git a/tools/testing/radix-tree/linux/lockdep.h b/tools/testing/shared/linux/lockdep.h
similarity index 100%
rename from tools/testing/radix-tree/linux/lockdep.h
rename to tools/testing/shared/linux/lockdep.h
diff --git a/tools/testing/radix-tree/linux/maple_tree.h b/tools/testing/shared/linux/maple_tree.h
similarity index 100%
rename from tools/testing/radix-tree/linux/maple_tree.h
rename to tools/testing/shared/linux/maple_tree.h
diff --git a/tools/testing/radix-tree/linux/percpu.h b/tools/testing/shared/linux/percpu.h
similarity index 100%
rename from tools/testing/radix-tree/linux/percpu.h
rename to tools/testing/shared/linux/percpu.h
diff --git a/tools/testing/radix-tree/linux/preempt.h b/tools/testing/shared/linux/preempt.h
similarity index 100%
rename from tools/testing/radix-tree/linux/preempt.h
rename to tools/testing/shared/linux/preempt.h
diff --git a/tools/testing/radix-tree/linux/radix-tree.h b/tools/testing/shared/linux/radix-tree.h
similarity index 100%
rename from tools/testing/radix-tree/linux/radix-tree.h
rename to tools/testing/shared/linux/radix-tree.h
diff --git a/tools/testing/radix-tree/linux/rcupdate.h b/tools/testing/shared/linux/rcupdate.h
similarity index 100%
rename from tools/testing/radix-tree/linux/rcupdate.h
rename to tools/testing/shared/linux/rcupdate.h
diff --git a/tools/testing/radix-tree/linux/xarray.h b/tools/testing/shared/linux/xarray.h
similarity index 100%
rename from tools/testing/radix-tree/linux/xarray.h
rename to tools/testing/shared/linux/xarray.h
diff --git a/tools/testing/shared/maple-shared.h b/tools/testing/shared/maple-shared.h
new file mode 100644
index 000000000000..3d847edd149d
--- /dev/null
+++ b/tools/testing/shared/maple-shared.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#define CONFIG_DEBUG_MAPLE_TREE
+#define CONFIG_MAPLE_SEARCH
+#define MAPLE_32BIT (MAPLE_NODE_SLOTS > 31)
+#include "shared.h"
+#include <stdlib.h>
+#include <time.h>
+#include "linux/init.h"
diff --git a/tools/testing/shared/maple-shim.c b/tools/testing/shared/maple-shim.c
new file mode 100644
index 000000000000..640df76f483e
--- /dev/null
+++ b/tools/testing/shared/maple-shim.c
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/* Very simple shim around the maple tree. */
+
+#include "maple-shared.h"
+
+#include "../../../lib/maple_tree.c"
diff --git a/tools/testing/shared/shared.h b/tools/testing/shared/shared.h
new file mode 100644
index 000000000000..f08f683812ad
--- /dev/null
+++ b/tools/testing/shared/shared.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include <linux/types.h>
+#include <linux/bug.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+
+#include <linux/gfp.h>
+#include <linux/rcupdate.h>
+
+#ifndef module_init
+#define module_init(x)
+#endif
+
+#ifndef module_exit
+#define module_exit(x)
+#endif
+
+#ifndef MODULE_AUTHOR
+#define MODULE_AUTHOR(x)
+#endif
+
+#ifndef MODULE_LICENSE
+#define MODULE_LICENSE(x)
+#endif
+
+#ifndef MODULE_DESCRIPTION
+#define MODULE_DESCRIPTION(x)
+#endif
+
+#ifndef dump_stack
+#define dump_stack() assert(0)
+#endif
diff --git a/tools/testing/shared/shared.mk b/tools/testing/shared/shared.mk
new file mode 100644
index 000000000000..a05f0588513a
--- /dev/null
+++ b/tools/testing/shared/shared.mk
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += -I../shared -I. -I../../include -I../../../lib -g -Og -Wall \
+ -D_LGPL_SOURCE -fsanitize=address -fsanitize=undefined
+LDFLAGS += -fsanitize=address -fsanitize=undefined
+LDLIBS += -lpthread -lurcu
+LIBS := slab.o find_bit.o bitmap.o hweight.o vsprintf.o
+SHARED_OFILES = xarray-shared.o radix-tree.o idr.o linux.o $(LIBS)
+
+SHARED_DEPS = Makefile ../shared/shared.mk ../shared/*.h generated/map-shift.h \
+ generated/bit-length.h generated/autoconf.h \
+ ../../include/linux/*.h \
+ ../../include/asm/*.h \
+ ../../../include/linux/xarray.h \
+ ../../../include/linux/maple_tree.h \
+ ../../../include/linux/radix-tree.h \
+ ../../../lib/radix-tree.h \
+ ../../../include/linux/idr.h
+
+ifndef SHIFT
+ SHIFT=3
+endif
+
+ifeq ($(BUILD), 32)
+ CFLAGS += -m32
+ LDFLAGS += -m32
+LONG_BIT := 32
+endif
+
+ifndef LONG_BIT
+LONG_BIT := $(shell getconf LONG_BIT)
+endif
+
+%.o: ../shared/%.c
+ $(CC) -c $(CFLAGS) $< -o $@
+
+vpath %.c ../../lib
+
+$(SHARED_OFILES): $(SHARED_DEPS)
+
+radix-tree.c: ../../../lib/radix-tree.c
+ sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline //' < $< > $@
+
+idr.c: ../../../lib/idr.c
+ sed -e 's/^static //' -e 's/__always_inline //' -e 's/inline //' < $< > $@
+
+xarray-shared.o: ../shared/xarray-shared.c ../../../lib/xarray.c \
+ ../../../lib/test_xarray.c
+
+maple-shared.o: ../shared/maple-shared.c ../../../lib/maple_tree.c \
+ ../../../lib/test_maple_tree.c
+
+generated/autoconf.h:
+ @mkdir -p generated
+ cp ../shared/autoconf.h generated/autoconf.h
+
+generated/map-shift.h:
+ @mkdir -p generated
+ @if ! grep -qws $(SHIFT) generated/map-shift.h; then \
+ echo "Generating $@"; \
+ echo "#define XA_CHUNK_SHIFT $(SHIFT)" > \
+ generated/map-shift.h; \
+ fi
+
+generated/bit-length.h: FORCE
+ @mkdir -p generated
+ @if ! grep -qws CONFIG_$(LONG_BIT)BIT generated/bit-length.h; then \
+ echo "Generating $@"; \
+ echo "#define CONFIG_$(LONG_BIT)BIT 1" > $@; \
+ fi
+
+FORCE: ;
diff --git a/tools/testing/radix-tree/trace/events/maple_tree.h b/tools/testing/shared/trace/events/maple_tree.h
similarity index 100%
rename from tools/testing/radix-tree/trace/events/maple_tree.h
rename to tools/testing/shared/trace/events/maple_tree.h
diff --git a/tools/testing/shared/xarray-shared.c b/tools/testing/shared/xarray-shared.c
new file mode 100644
index 000000000000..e90901958dcd
--- /dev/null
+++ b/tools/testing/shared/xarray-shared.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "xarray-shared.h"
+
+#include "../../../lib/xarray.c"
diff --git a/tools/testing/shared/xarray-shared.h b/tools/testing/shared/xarray-shared.h
new file mode 100644
index 000000000000..ac2d16ff53ae
--- /dev/null
+++ b/tools/testing/shared/xarray-shared.h
@@ -0,0 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#define XA_DEBUG
+#include "shared.h"
--
2.45.2

Next message: Lorenzo Stoakes: "[PATCH v4 7/7] tools: add skeleton code for userland testing of VMA logic"
Previous message: Abhash Jha: "[PATCH v3 2/3] iio: light: ltr390: Add ALS channel and support for gain and resolution"
In reply to: Lorenzo Stoakes: "[PATCH v4 5/7] MAINTAINERS: Add entry for new VMA files"
Next in thread: Lorenzo Stoakes: "[PATCH v4 7/7] tools: add skeleton code for userland testing of VMA logic"
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