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authorArnaldo Carvalho de Melo <acme@redhat.com>2016-07-12 11:12:18 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-07-12 15:20:39 -0300
commitbb9707077b4ee5f77bc9939b057ff8a0d410296f (patch)
tree5d532c5066c0b7e40948a44f6cab11cb3b8d6e61 /tools/include
parent39f54862a935e14a448cbd68d6a6bef68d026dbe (diff)
tools: Copy the bitsperlong.h files from the kernel
We use it in bitops/__ffs.h and bitops/atomic.h, that we also got from the kernel, but were getting it from either newer systems that carry it in /usr/include, or from the kernel sources, that we decided not to touch from tools/ code. Fix it. 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-lwqvgbuitjmrdpjmjp6zqnyx@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/include')
-rw-r--r--tools/include/asm-generic/bitops/__ffs.h1
-rw-r--r--tools/include/asm-generic/bitops/atomic.h1
-rw-r--r--tools/include/asm-generic/bitsperlong.h25
-rw-r--r--tools/include/uapi/asm-generic/bitsperlong.h15
4 files changed, 42 insertions, 0 deletions
diff --git a/tools/include/asm-generic/bitops/__ffs.h b/tools/include/asm-generic/bitops/__ffs.h
index c94175015a82..b3accfdf24b9 100644
--- a/tools/include/asm-generic/bitops/__ffs.h
+++ b/tools/include/asm-generic/bitops/__ffs.h
@@ -2,6 +2,7 @@
#define _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_
#include <asm/types.h>
+#include <asm/bitsperlong.h>
/**
* __ffs - find first bit in word.
diff --git a/tools/include/asm-generic/bitops/atomic.h b/tools/include/asm-generic/bitops/atomic.h
index 4bccd7c3d5d6..18663f59d72f 100644
--- a/tools/include/asm-generic/bitops/atomic.h
+++ b/tools/include/asm-generic/bitops/atomic.h
@@ -2,6 +2,7 @@
#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
#include <asm/types.h>
+#include <asm/bitsperlong.h>
static inline void set_bit(int nr, unsigned long *addr)
{
diff --git a/tools/include/asm-generic/bitsperlong.h b/tools/include/asm-generic/bitsperlong.h
new file mode 100644
index 000000000000..d1d70aa19021
--- /dev/null
+++ b/tools/include/asm-generic/bitsperlong.h
@@ -0,0 +1,25 @@
+#ifndef __ASM_GENERIC_BITS_PER_LONG
+#define __ASM_GENERIC_BITS_PER_LONG
+
+#include <uapi/asm-generic/bitsperlong.h>
+
+
+#ifdef CONFIG_64BIT
+#define BITS_PER_LONG 64
+#else
+#define BITS_PER_LONG 32
+#endif /* CONFIG_64BIT */
+
+/*
+ * FIXME: The check currently breaks x86-64 build, so it's
+ * temporarily disabled. Please fix x86-64 and reenable
+ */
+#if 0 && BITS_PER_LONG != __BITS_PER_LONG
+#error Inconsistent word size. Check asm/bitsperlong.h
+#endif
+
+#ifndef BITS_PER_LONG_LONG
+#define BITS_PER_LONG_LONG 64
+#endif
+
+#endif /* __ASM_GENERIC_BITS_PER_LONG */
diff --git a/tools/include/uapi/asm-generic/bitsperlong.h b/tools/include/uapi/asm-generic/bitsperlong.h
new file mode 100644
index 000000000000..23e6c416b85f
--- /dev/null
+++ b/tools/include/uapi/asm-generic/bitsperlong.h
@@ -0,0 +1,15 @@
+#ifndef _UAPI__ASM_GENERIC_BITS_PER_LONG
+#define _UAPI__ASM_GENERIC_BITS_PER_LONG
+
+/*
+ * There seems to be no way of detecting this automatically from user
+ * space, so 64 bit architectures should override this in their
+ * bitsperlong.h. In particular, an architecture that supports
+ * both 32 and 64 bit user space must not rely on CONFIG_64BIT
+ * to decide it, but rather check a compiler provided macro.
+ */
+#ifndef __BITS_PER_LONG
+#define __BITS_PER_LONG 32
+#endif
+
+#endif /* _UAPI__ASM_GENERIC_BITS_PER_LONG */