Various parts of the kernel API didn't need to exist before, so add
them:
- spin_trylock()
- DECLARE_FLEX_ARRAY
- vmalloc
- __vmalloc_node
- kvmalloc
- kvfree_rcu_mightsleep
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
tools/include/linux/compiler.h | 4 ++++
tools/include/linux/compiler_types.h | 2 ++
tools/include/linux/spinlock.h | 2 ++
tools/include/linux/stddef.h | 3 +++
tools/testing/radix-tree/linux/kernel.h | 2 ++
tools/testing/radix-tree/linux/vmalloc.h | 14 ++++++++++++++
6 files changed, 27 insertions(+)
create mode 100644 tools/include/linux/stddef.h
create mode 100644 tools/testing/radix-tree/linux/vmalloc.h
diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h
index 8a63a9913495..936b5153b0fe 100644
--- a/tools/include/linux/compiler.h
+++ b/tools/include/linux/compiler.h
@@ -62,6 +62,10 @@
#define __nocf_check __attribute__((nocf_check))
#endif
+#ifndef __refdata
+#define __refdata
+#endif
+
/* Are two types/vars the same type (ignoring qualifiers)? */
#ifndef __same_type
# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
diff --git a/tools/include/linux/compiler_types.h b/tools/include/linux/compiler_types.h
index d09f9dc172a4..18bd8767cebc 100644
--- a/tools/include/linux/compiler_types.h
+++ b/tools/include/linux/compiler_types.h
@@ -17,6 +17,7 @@
/* context/locking */
# define __must_hold(x) __attribute__((context(x,1,1)))
# define __acquires(x) __attribute__((context(x,0,1)))
+# define __cond_acquires(x) __attribute__((context(x,0,-1)))
# define __releases(x) __attribute__((context(x,1,0)))
# define __acquire(x) __context__(x,1)
# define __release(x) __context__(x,-1)
@@ -27,6 +28,7 @@
# define __acquires(x)
# define __releases(x)
# define __acquire(x) (void)0
+# define __cond_acquires(x)
# define __release(x) (void)0
# define __cond_lock(x,c) (c)
#endif /* __CHECKER__ */
diff --git a/tools/include/linux/spinlock.h b/tools/include/linux/spinlock.h
index a6cdf25b6b9d..871a6a305b9d 100644
--- a/tools/include/linux/spinlock.h
+++ b/tools/include/linux/spinlock.h
@@ -20,6 +20,8 @@
#define spin_lock_irqsave(x, f) (void)f, pthread_mutex_lock(x)
#define spin_unlock_irqrestore(x, f) (void)f, pthread_mutex_unlock(x)
+#define spin_trylock(x) (pthread_mutex_trylock(x) == 0)
+
#define arch_spinlock_t pthread_mutex_t
#define __ARCH_SPIN_LOCK_UNLOCKED PTHREAD_MUTEX_INITIALIZER
diff --git a/tools/include/linux/stddef.h b/tools/include/linux/stddef.h
new file mode 100644
index 000000000000..337f520eba1d
--- /dev/null
+++ b/tools/include/linux/stddef.h
@@ -0,0 +1,3 @@
+#include <uapi/linux/stddef.h>
+
+#define DECLARE_FLEX_ARRAY(TYPE, NAME) __DECLARE_FLEX_ARRAY(TYPE, NAME)
diff --git a/tools/testing/radix-tree/linux/kernel.h b/tools/testing/radix-tree/linux/kernel.h
index c0a2bb785b92..72a95fd9708c 100644
--- a/tools/testing/radix-tree/linux/kernel.h
+++ b/tools/testing/radix-tree/linux/kernel.h
@@ -26,4 +26,6 @@
#define __must_hold(x)
#define EXPORT_PER_CPU_SYMBOL_GPL(x)
+
+#define PAGE_SIZE 4096
#endif /* _KERNEL_H */
diff --git a/tools/testing/radix-tree/linux/vmalloc.h b/tools/testing/radix-tree/linux/vmalloc.h
new file mode 100644
index 000000000000..2857c37472bb
--- /dev/null
+++ b/tools/testing/radix-tree/linux/vmalloc.h
@@ -0,0 +1,14 @@
+#include <malloc.h>
+
+#define vmalloc(x) malloc(x)
+#define __vmalloc_node(size, align, gfp, node, caller) memalign(size, align)
+#define vfree(x) free(x)
+
+#define kvmalloc(x, gfp) memalign(x, x)
+#define kvfree(x) free(x)
+
+/* A correct but slow implementation */
+#define kvfree_rcu_mightsleep(x) { \
+ synchronize_rcu(); \
+ free(x); \
+}
--
2.43.0
