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-rw-r--r--tools/include/asm-generic/bitops/__fls.h2
-rw-r--r--tools/include/asm-generic/bitops/fls.h2
-rw-r--r--tools/include/asm-generic/bitops/fls64.h4
-rw-r--r--tools/include/linux/interval_tree_generic.h10
-rw-r--r--tools/include/linux/livepatch_external.h76
-rw-r--r--tools/include/linux/objtool_types.h2
-rw-r--r--tools/include/linux/string.h14
-rw-r--r--tools/include/nolibc/arch-s390.h5
-rw-r--r--tools/include/nolibc/arch.h2
-rw-r--r--tools/include/uapi/drm/drm.h63
-rw-r--r--tools/include/uapi/linux/kvm.h3
-rw-r--r--tools/include/uapi/linux/nsfs.h70
-rw-r--r--tools/include/uapi/linux/perf_event.h21
13 files changed, 244 insertions, 30 deletions
diff --git a/tools/include/asm-generic/bitops/__fls.h b/tools/include/asm-generic/bitops/__fls.h
index e974ec932ec1..35f33780ca6c 100644
--- a/tools/include/asm-generic/bitops/__fls.h
+++ b/tools/include/asm-generic/bitops/__fls.h
@@ -10,7 +10,7 @@
*
* Undefined if no set bit exists, so code should check against 0 first.
*/
-static __always_inline unsigned int generic___fls(unsigned long word)
+static __always_inline __attribute_const__ unsigned int generic___fls(unsigned long word)
{
unsigned int num = BITS_PER_LONG - 1;
diff --git a/tools/include/asm-generic/bitops/fls.h b/tools/include/asm-generic/bitops/fls.h
index 26f3ce1dd6e4..8eed3437edb9 100644
--- a/tools/include/asm-generic/bitops/fls.h
+++ b/tools/include/asm-generic/bitops/fls.h
@@ -10,7 +10,7 @@
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static __always_inline int generic_fls(unsigned int x)
+static __always_inline __attribute_const__ int generic_fls(unsigned int x)
{
int r = 32;
diff --git a/tools/include/asm-generic/bitops/fls64.h b/tools/include/asm-generic/bitops/fls64.h
index 866f2b2304ff..b5f58dd261a3 100644
--- a/tools/include/asm-generic/bitops/fls64.h
+++ b/tools/include/asm-generic/bitops/fls64.h
@@ -16,7 +16,7 @@
* at position 64.
*/
#if BITS_PER_LONG == 32
-static __always_inline int fls64(__u64 x)
+static __always_inline __attribute_const__ int fls64(__u64 x)
{
__u32 h = x >> 32;
if (h)
@@ -24,7 +24,7 @@ static __always_inline int fls64(__u64 x)
return fls(x);
}
#elif BITS_PER_LONG == 64
-static __always_inline int fls64(__u64 x)
+static __always_inline __attribute_const__ int fls64(__u64 x)
{
if (x == 0)
return 0;
diff --git a/tools/include/linux/interval_tree_generic.h b/tools/include/linux/interval_tree_generic.h
index aaa8a0767aa3..c5a2fed49eb0 100644
--- a/tools/include/linux/interval_tree_generic.h
+++ b/tools/include/linux/interval_tree_generic.h
@@ -77,7 +77,7 @@ ITSTATIC void ITPREFIX ## _remove(ITSTRUCT *node, \
* Cond2: start <= ITLAST(node) \
*/ \
\
-static ITSTRUCT * \
+ITSTATIC ITSTRUCT * \
ITPREFIX ## _subtree_search(ITSTRUCT *node, ITTYPE start, ITTYPE last) \
{ \
while (true) { \
@@ -104,12 +104,8 @@ ITPREFIX ## _subtree_search(ITSTRUCT *node, ITTYPE start, ITTYPE last) \
if (ITSTART(node) <= last) { /* Cond1 */ \
if (start <= ITLAST(node)) /* Cond2 */ \
return node; /* node is leftmost match */ \
- if (node->ITRB.rb_right) { \
- node = rb_entry(node->ITRB.rb_right, \
- ITSTRUCT, ITRB); \
- if (start <= node->ITSUBTREE) \
- continue; \
- } \
+ node = rb_entry(node->ITRB.rb_right, ITSTRUCT, ITRB); \
+ continue; \
} \
return NULL; /* No match */ \
} \
diff --git a/tools/include/linux/livepatch_external.h b/tools/include/linux/livepatch_external.h
new file mode 100644
index 000000000000..138af19b0f5c
--- /dev/null
+++ b/tools/include/linux/livepatch_external.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * External livepatch interfaces for patch creation tooling
+ */
+
+#ifndef _LINUX_LIVEPATCH_EXTERNAL_H_
+#define _LINUX_LIVEPATCH_EXTERNAL_H_
+
+#include <linux/types.h>
+
+#define KLP_RELOC_SEC_PREFIX ".klp.rela."
+#define KLP_SYM_PREFIX ".klp.sym."
+
+#define __KLP_PRE_PATCH_PREFIX __klp_pre_patch_callback_
+#define __KLP_POST_PATCH_PREFIX __klp_post_patch_callback_
+#define __KLP_PRE_UNPATCH_PREFIX __klp_pre_unpatch_callback_
+#define __KLP_POST_UNPATCH_PREFIX __klp_post_unpatch_callback_
+
+#define KLP_PRE_PATCH_PREFIX __stringify(__KLP_PRE_PATCH_PREFIX)
+#define KLP_POST_PATCH_PREFIX __stringify(__KLP_POST_PATCH_PREFIX)
+#define KLP_PRE_UNPATCH_PREFIX __stringify(__KLP_PRE_UNPATCH_PREFIX)
+#define KLP_POST_UNPATCH_PREFIX __stringify(__KLP_POST_UNPATCH_PREFIX)
+
+struct klp_object;
+
+typedef int (*klp_pre_patch_t)(struct klp_object *obj);
+typedef void (*klp_post_patch_t)(struct klp_object *obj);
+typedef void (*klp_pre_unpatch_t)(struct klp_object *obj);
+typedef void (*klp_post_unpatch_t)(struct klp_object *obj);
+
+/**
+ * struct klp_callbacks - pre/post live-(un)patch callback structure
+ * @pre_patch: executed before code patching
+ * @post_patch: executed after code patching
+ * @pre_unpatch: executed before code unpatching
+ * @post_unpatch: executed after code unpatching
+ * @post_unpatch_enabled: flag indicating if post-unpatch callback
+ * should run
+ *
+ * All callbacks are optional. Only the pre-patch callback, if provided,
+ * will be unconditionally executed. If the parent klp_object fails to
+ * patch for any reason, including a non-zero error status returned from
+ * the pre-patch callback, no further callbacks will be executed.
+ */
+struct klp_callbacks {
+ klp_pre_patch_t pre_patch;
+ klp_post_patch_t post_patch;
+ klp_pre_unpatch_t pre_unpatch;
+ klp_post_unpatch_t post_unpatch;
+ bool post_unpatch_enabled;
+};
+
+/*
+ * 'struct klp_{func,object}_ext' are compact "external" representations of
+ * 'struct klp_{func,object}'. They are used by objtool for livepatch
+ * generation. The structs are then read by the livepatch module and converted
+ * to the real structs before calling klp_enable_patch().
+ *
+ * TODO make these the official API for klp_enable_patch(). That should
+ * simplify livepatch's interface as well as its data structure lifetime
+ * management.
+ */
+struct klp_func_ext {
+ const char *old_name;
+ void *new_func;
+ unsigned long sympos;
+};
+
+struct klp_object_ext {
+ const char *name;
+ struct klp_func_ext *funcs;
+ struct klp_callbacks callbacks;
+ unsigned int nr_funcs;
+};
+
+#endif /* _LINUX_LIVEPATCH_EXTERNAL_H_ */
diff --git a/tools/include/linux/objtool_types.h b/tools/include/linux/objtool_types.h
index aceac94632c8..c6def4049b1a 100644
--- a/tools/include/linux/objtool_types.h
+++ b/tools/include/linux/objtool_types.h
@@ -67,4 +67,6 @@ struct unwind_hint {
#define ANNOTYPE_REACHABLE 8
#define ANNOTYPE_NOCFI 9
+#define ANNOTYPE_DATA_SPECIAL 1
+
#endif /* _LINUX_OBJTOOL_TYPES_H */
diff --git a/tools/include/linux/string.h b/tools/include/linux/string.h
index 8499f509f03e..51ad3cf4fa82 100644
--- a/tools/include/linux/string.h
+++ b/tools/include/linux/string.h
@@ -44,6 +44,20 @@ static inline bool strstarts(const char *str, const char *prefix)
return strncmp(str, prefix, strlen(prefix)) == 0;
}
+/*
+ * Checks if a string ends with another.
+ */
+static inline bool str_ends_with(const char *str, const char *substr)
+{
+ size_t len = strlen(str);
+ size_t sublen = strlen(substr);
+
+ if (sublen > len)
+ return false;
+
+ return !strcmp(str + len - sublen, substr);
+}
+
extern char * __must_check skip_spaces(const char *);
extern char *strim(char *);
diff --git a/tools/include/nolibc/arch-s390.h b/tools/include/nolibc/arch-s390.h
index df4c3cc713ac..0a39bee261b9 100644
--- a/tools/include/nolibc/arch-s390.h
+++ b/tools/include/nolibc/arch-s390.h
@@ -143,13 +143,8 @@
void __attribute__((weak, noreturn)) __nolibc_entrypoint __no_stack_protector _start(void)
{
__asm__ volatile (
-#ifdef __s390x__
"lgr %r2, %r15\n" /* save stack pointer to %r2, as arg1 of _start_c */
"aghi %r15, -160\n" /* allocate new stackframe */
-#else
- "lr %r2, %r15\n"
- "ahi %r15, -96\n"
-#endif
"xc 0(8,%r15), 0(%r15)\n" /* clear backchain */
"brasl %r14, _start_c\n" /* transfer to c runtime */
);
diff --git a/tools/include/nolibc/arch.h b/tools/include/nolibc/arch.h
index 426c89198135..ef4743aad188 100644
--- a/tools/include/nolibc/arch.h
+++ b/tools/include/nolibc/arch.h
@@ -27,7 +27,7 @@
#include "arch-powerpc.h"
#elif defined(__riscv)
#include "arch-riscv.h"
-#elif defined(__s390x__) || defined(__s390__)
+#elif defined(__s390x__)
#include "arch-s390.h"
#elif defined(__loongarch__)
#include "arch-loongarch.h"
diff --git a/tools/include/uapi/drm/drm.h b/tools/include/uapi/drm/drm.h
index e63a71d3c607..3cd5cf15e3c9 100644
--- a/tools/include/uapi/drm/drm.h
+++ b/tools/include/uapi/drm/drm.h
@@ -597,35 +597,66 @@ struct drm_set_version {
int drm_dd_minor;
};
-/* DRM_IOCTL_GEM_CLOSE ioctl argument type */
+/**
+ * struct drm_gem_close - Argument for &DRM_IOCTL_GEM_CLOSE ioctl.
+ * @handle: Handle of the object to be closed.
+ * @pad: Padding.
+ *
+ * Releases the handle to an mm object.
+ */
struct drm_gem_close {
- /** Handle of the object to be closed. */
__u32 handle;
__u32 pad;
};
-/* DRM_IOCTL_GEM_FLINK ioctl argument type */
+/**
+ * struct drm_gem_flink - Argument for &DRM_IOCTL_GEM_FLINK ioctl.
+ * @handle: Handle for the object being named.
+ * @name: Returned global name.
+ *
+ * Create a global name for an object, returning the name.
+ *
+ * Note that the name does not hold a reference; when the object
+ * is freed, the name goes away.
+ */
struct drm_gem_flink {
- /** Handle for the object being named */
__u32 handle;
-
- /** Returned global name */
__u32 name;
};
-/* DRM_IOCTL_GEM_OPEN ioctl argument type */
+/**
+ * struct drm_gem_open - Argument for &DRM_IOCTL_GEM_OPEN ioctl.
+ * @name: Name of object being opened.
+ * @handle: Returned handle for the object.
+ * @size: Returned size of the object
+ *
+ * Open an object using the global name, returning a handle and the size.
+ *
+ * This handle (of course) holds a reference to the object, so the object
+ * will not go away until the handle is deleted.
+ */
struct drm_gem_open {
- /** Name of object being opened */
__u32 name;
-
- /** Returned handle for the object */
__u32 handle;
-
- /** Returned size of the object */
__u64 size;
};
/**
+ * struct drm_gem_change_handle - Argument for &DRM_IOCTL_GEM_CHANGE_HANDLE ioctl.
+ * @handle: The handle of a gem object.
+ * @new_handle: An available gem handle.
+ *
+ * This ioctl changes the handle of a GEM object to the specified one.
+ * The new handle must be unused. On success the old handle is closed
+ * and all further IOCTL should refer to the new handle only.
+ * Calls to DRM_IOCTL_PRIME_FD_TO_HANDLE will return the new handle.
+ */
+struct drm_gem_change_handle {
+ __u32 handle;
+ __u32 new_handle;
+};
+
+/**
* DRM_CAP_DUMB_BUFFER
*
* If set to 1, the driver supports creating dumb buffers via the
@@ -1309,6 +1340,14 @@ extern "C" {
*/
#define DRM_IOCTL_SET_CLIENT_NAME DRM_IOWR(0xD1, struct drm_set_client_name)
+/**
+ * DRM_IOCTL_GEM_CHANGE_HANDLE - Move an object to a different handle
+ *
+ * Some applications (notably CRIU) need objects to have specific gem handles.
+ * This ioctl changes the object at one gem handle to use a new gem handle.
+ */
+#define DRM_IOCTL_GEM_CHANGE_HANDLE DRM_IOWR(0xD2, struct drm_gem_change_handle)
+
/*
* Device specific ioctls should only be in their respective headers
* The device specific ioctl range is from 0x40 to 0x9f.
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index f0f0d49d2544..52f6000ab020 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -962,6 +962,7 @@ struct kvm_enable_cap {
#define KVM_CAP_ARM_EL2_E2H0 241
#define KVM_CAP_RISCV_MP_STATE_RESET 242
#define KVM_CAP_ARM_CACHEABLE_PFNMAP_SUPPORTED 243
+#define KVM_CAP_GUEST_MEMFD_FLAGS 244
struct kvm_irq_routing_irqchip {
__u32 irqchip;
@@ -1598,6 +1599,8 @@ struct kvm_memory_attributes {
#define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3)
#define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
+#define GUEST_MEMFD_FLAG_MMAP (1ULL << 0)
+#define GUEST_MEMFD_FLAG_INIT_SHARED (1ULL << 1)
struct kvm_create_guest_memfd {
__u64 size;
diff --git a/tools/include/uapi/linux/nsfs.h b/tools/include/uapi/linux/nsfs.h
index 33c9b578b3b2..a25e38d1c874 100644
--- a/tools/include/uapi/linux/nsfs.h
+++ b/tools/include/uapi/linux/nsfs.h
@@ -53,6 +53,76 @@ enum init_ns_ino {
TIME_NS_INIT_INO = 0xEFFFFFFAU,
NET_NS_INIT_INO = 0xEFFFFFF9U,
MNT_NS_INIT_INO = 0xEFFFFFF8U,
+#ifdef __KERNEL__
+ MNT_NS_ANON_INO = 0xEFFFFFF7U,
+#endif
};
+struct nsfs_file_handle {
+ __u64 ns_id;
+ __u32 ns_type;
+ __u32 ns_inum;
+};
+
+#define NSFS_FILE_HANDLE_SIZE_VER0 16 /* sizeof first published struct */
+#define NSFS_FILE_HANDLE_SIZE_LATEST sizeof(struct nsfs_file_handle) /* sizeof latest published struct */
+
+enum init_ns_id {
+ IPC_NS_INIT_ID = 1ULL,
+ UTS_NS_INIT_ID = 2ULL,
+ USER_NS_INIT_ID = 3ULL,
+ PID_NS_INIT_ID = 4ULL,
+ CGROUP_NS_INIT_ID = 5ULL,
+ TIME_NS_INIT_ID = 6ULL,
+ NET_NS_INIT_ID = 7ULL,
+ MNT_NS_INIT_ID = 8ULL,
+#ifdef __KERNEL__
+ NS_LAST_INIT_ID = MNT_NS_INIT_ID,
+#endif
+};
+
+enum ns_type {
+ TIME_NS = (1ULL << 7), /* CLONE_NEWTIME */
+ MNT_NS = (1ULL << 17), /* CLONE_NEWNS */
+ CGROUP_NS = (1ULL << 25), /* CLONE_NEWCGROUP */
+ UTS_NS = (1ULL << 26), /* CLONE_NEWUTS */
+ IPC_NS = (1ULL << 27), /* CLONE_NEWIPC */
+ USER_NS = (1ULL << 28), /* CLONE_NEWUSER */
+ PID_NS = (1ULL << 29), /* CLONE_NEWPID */
+ NET_NS = (1ULL << 30), /* CLONE_NEWNET */
+};
+
+/**
+ * struct ns_id_req - namespace ID request structure
+ * @size: size of this structure
+ * @spare: reserved for future use
+ * @filter: filter mask
+ * @ns_id: last namespace id
+ * @user_ns_id: owning user namespace ID
+ *
+ * Structure for passing namespace ID and miscellaneous parameters to
+ * statns(2) and listns(2).
+ *
+ * For statns(2) @param represents the request mask.
+ * For listns(2) @param represents the last listed mount id (or zero).
+ */
+struct ns_id_req {
+ __u32 size;
+ __u32 spare;
+ __u64 ns_id;
+ struct /* listns */ {
+ __u32 ns_type;
+ __u32 spare2;
+ __u64 user_ns_id;
+ };
+};
+
+/*
+ * Special @user_ns_id value that can be passed to listns()
+ */
+#define LISTNS_CURRENT_USER 0xffffffffffffffff /* Caller's userns */
+
+/* List of all ns_id_req versions. */
+#define NS_ID_REQ_SIZE_VER0 32 /* sizeof first published struct */
+
#endif /* __LINUX_NSFS_H */
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 78a362b80027..d292f96bc06f 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -463,7 +463,9 @@ struct perf_event_attr {
inherit_thread : 1, /* children only inherit if cloned with CLONE_THREAD */
remove_on_exec : 1, /* event is removed from task on exec */
sigtrap : 1, /* send synchronous SIGTRAP on event */
- __reserved_1 : 26;
+ defer_callchain: 1, /* request PERF_RECORD_CALLCHAIN_DEFERRED records */
+ defer_output : 1, /* output PERF_RECORD_CALLCHAIN_DEFERRED records */
+ __reserved_1 : 24;
union {
__u32 wakeup_events; /* wake up every n events */
@@ -1239,6 +1241,22 @@ enum perf_event_type {
*/
PERF_RECORD_AUX_OUTPUT_HW_ID = 21,
+ /*
+ * This user callchain capture was deferred until shortly before
+ * returning to user space. Previous samples would have kernel
+ * callchains only and they need to be stitched with this to make full
+ * callchains.
+ *
+ * struct {
+ * struct perf_event_header header;
+ * u64 cookie;
+ * u64 nr;
+ * u64 ips[nr];
+ * struct sample_id sample_id;
+ * };
+ */
+ PERF_RECORD_CALLCHAIN_DEFERRED = 22,
+
PERF_RECORD_MAX, /* non-ABI */
};
@@ -1269,6 +1287,7 @@ enum perf_callchain_context {
PERF_CONTEXT_HV = (__u64)-32,
PERF_CONTEXT_KERNEL = (__u64)-128,
PERF_CONTEXT_USER = (__u64)-512,
+ PERF_CONTEXT_USER_DEFERRED = (__u64)-640,
PERF_CONTEXT_GUEST = (__u64)-2048,
PERF_CONTEXT_GUEST_KERNEL = (__u64)-2176,
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-03 14:53:45 +0000