Bpftool sync 2025-11-10

BPF-CHECKPOINT-COMMIT

@@ -1 +1 @@
-4d920ed684392ae064af62957d6f5a90312dfaf6
+e427054ae7bc8b1268cf1989381a43885795616f

CHECKPOINT-COMMIT

@@ -1 +1 @@
-de7342228b7343774d6a9981c2ddbfb5e201044b
+f8c67d8550ee69ce684c7015b2c8c63cda24bbfb

docs/bpftool-map.rst

@@ -55,7 +55,8 @@ MAP COMMANDS
 |     | **devmap** | **devmap_hash** | **sockmap** | **cpumap** | **xskmap** | **sockhash**
 |     | **cgroup_storage** | **reuseport_sockarray** | **percpu_cgroup_storage**
 |     | **queue** | **stack** | **sk_storage** | **struct_ops** | **ringbuf** | **inode_storage**
-|     | **task_storage** | **bloom_filter** | **user_ringbuf** | **cgrp_storage** | **arena** }
+|     | **task_storage** | **bloom_filter** | **user_ringbuf** | **cgrp_storage** | **arena**
+|     | **insn_array** }
 
 DESCRIPTION
 ===========

docs/bpftool-prog.rst

@@ -182,7 +182,7 @@ bpftool prog tracelog
 
 bpftool prog tracelog { stdout | stderr } *PROG*
     Dump the BPF stream of the program. BPF programs can write to these streams
-    at runtime with the **bpf_stream_vprintk**\ () kfunc. The kernel may write
+    at runtime with the **bpf_stream_vprintk_impl**\ () kfunc. The kernel may write
     error messages to the standard error stream. This facility should be used
     only for debugging purposes.
 

include/uapi/linux/bpf.h

@@ -1026,6 +1026,7 @@ enum bpf_map_type {
 	BPF_MAP_TYPE_USER_RINGBUF,
 	BPF_MAP_TYPE_CGRP_STORAGE,
 	BPF_MAP_TYPE_ARENA,
+	BPF_MAP_TYPE_INSN_ARRAY,
 	__MAX_BPF_MAP_TYPE
 };
 
@@ -1430,6 +1431,9 @@ enum {
 
 /* Do not translate kernel bpf_arena pointers to user pointers */
 	BPF_F_NO_USER_CONV	= (1U << 18),
+
+/* Enable BPF ringbuf overwrite mode */
+	BPF_F_RB_OVERWRITE	= (1U << 19),
 };
 
 /* Flags for BPF_PROG_QUERY. */
@@ -5618,7 +5622,7 @@ union bpf_attr {
  *	Return
  *		*sk* if casting is valid, or **NULL** otherwise.
  *
- * long bpf_dynptr_from_mem(void *data, u32 size, u64 flags, struct bpf_dynptr *ptr)
+ * long bpf_dynptr_from_mem(void *data, u64 size, u64 flags, struct bpf_dynptr *ptr)
  *	Description
  *		Get a dynptr to local memory *data*.
  *
@@ -5661,7 +5665,7 @@ union bpf_attr {
  *	Return
  *		Nothing. Always succeeds.
  *
- * long bpf_dynptr_read(void *dst, u32 len, const struct bpf_dynptr *src, u32 offset, u64 flags)
+ * long bpf_dynptr_read(void *dst, u64 len, const struct bpf_dynptr *src, u64 offset, u64 flags)
  *	Description
  *		Read *len* bytes from *src* into *dst*, starting from *offset*
  *		into *src*.
@@ -5671,7 +5675,7 @@ union bpf_attr {
  *		of *src*'s data, -EINVAL if *src* is an invalid dynptr or if
  *		*flags* is not 0.
  *
- * long bpf_dynptr_write(const struct bpf_dynptr *dst, u32 offset, void *src, u32 len, u64 flags)
+ * long bpf_dynptr_write(const struct bpf_dynptr *dst, u64 offset, void *src, u64 len, u64 flags)
  *	Description
  *		Write *len* bytes from *src* into *dst*, starting from *offset*
  *		into *dst*.
@@ -5692,7 +5696,7 @@ union bpf_attr {
  *		is a read-only dynptr or if *flags* is not correct. For skb-type dynptrs,
  *		other errors correspond to errors returned by **bpf_skb_store_bytes**\ ().
  *
- * void *bpf_dynptr_data(const struct bpf_dynptr *ptr, u32 offset, u32 len)
+ * void *bpf_dynptr_data(const struct bpf_dynptr *ptr, u64 offset, u64 len)
  *	Description
  *		Get a pointer to the underlying dynptr data.
  *
@@ -6231,6 +6235,7 @@ enum {
 	BPF_RB_RING_SIZE = 1,
 	BPF_RB_CONS_POS = 2,
 	BPF_RB_PROD_POS = 3,
+	BPF_RB_OVERWRITE_POS = 4,
 };
 
 /* BPF ring buffer constants */
@@ -7645,4 +7650,24 @@ enum bpf_kfunc_flags {
 	BPF_F_PAD_ZEROS = (1ULL << 0),
 };
 
+/*
+ * Values of a BPF_MAP_TYPE_INSN_ARRAY entry must be of this type.
+ *
+ * Before the map is used the orig_off field should point to an
+ * instruction inside the program being loaded. The other fields
+ * must be set to 0.
+ *
+ * After the program is loaded, the xlated_off will be adjusted
+ * by the verifier to point to the index of the original instruction
+ * in the xlated program. If the instruction is deleted, it will
+ * be set to (u32)-1. The jitted_off will be set to the corresponding
+ * offset in the jitted image of the program.
+ */
+struct bpf_insn_array_value {
+	__u32 orig_off;
+	__u32 xlated_off;
+	__u32 jitted_off;
+	__u32 :32;
+};
+
 #endif /* _UAPI__LINUX_BPF_H__ */

src/btf_dumper.c

@@ -590,7 +590,7 @@ static int btf_dumper_do_type(const struct btf_dumper *d, __u32 type_id,
 	case BTF_KIND_DATASEC:
 		return btf_dumper_datasec(d, type_id, data);
 	default:
-		jsonw_printf(d->jw, "(unsupported-kind");
+		jsonw_printf(d->jw, "(unsupported-kind)");
 		return -EINVAL;
 	}
 }

src/kernel/bpf/disasm.c

@@ -358,6 +358,9 @@ void print_bpf_insn(const struct bpf_insn_cbs *cbs,
 		} else if (insn->code == (BPF_JMP | BPF_JA)) {
 			verbose(cbs->private_data, "(%02x) goto pc%+d\n",
 				insn->code, insn->off);
+		} else if (insn->code == (BPF_JMP | BPF_JA | BPF_X)) {
+			verbose(cbs->private_data, "(%02x) gotox r%d\n",
+				insn->code, insn->dst_reg);
 		} else if (insn->code == (BPF_JMP | BPF_JCOND) &&
 			   insn->src_reg == BPF_MAY_GOTO) {
 			verbose(cbs->private_data, "(%02x) may_goto pc%+d\n",

src/map.c

@@ -1477,7 +1477,8 @@ static int do_help(int argc, char **argv)
 		"                 devmap | devmap_hash | sockmap | cpumap | xskmap | sockhash |\n"
 		"                 cgroup_storage | reuseport_sockarray | percpu_cgroup_storage |\n"
 		"                 queue | stack | sk_storage | struct_ops | ringbuf | inode_storage |\n"
-		"                 task_storage | bloom_filter | user_ringbuf | cgrp_storage | arena }\n"
+		"                 task_storage | bloom_filter | user_ringbuf | cgrp_storage | arena |\n"
+		"                 insn_array }\n"
 		"       " HELP_SPEC_OPTIONS " |\n"
 		"                    {-f|--bpffs} | {-n|--nomount} }\n"
 		"",