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-rw-r--r--tools/bpf/bpftool/Documentation/bpftool-gen.rst2
-rw-r--r--tools/bpf/bpftool/Makefile2
-rw-r--r--tools/bpf/bpftool/btf.c16
-rw-r--r--tools/bpf/bpftool/btf_dumper.c2
-rw-r--r--tools/bpf/bpftool/cgroup.c2
-rw-r--r--tools/bpf/bpftool/common.c4
-rw-r--r--tools/bpf/bpftool/feature.c22
-rw-r--r--tools/bpf/bpftool/gen.c10
-rw-r--r--tools/bpf/bpftool/jit_disasm.c2
-rw-r--r--tools/bpf/bpftool/main.c4
-rw-r--r--tools/bpf/bpftool/map.c106
-rw-r--r--tools/bpf/bpftool/map_perf_ring.c4
-rw-r--r--tools/bpf/bpftool/net.c8
-rw-r--r--tools/bpf/bpftool/netlink_dumper.c4
-rw-r--r--tools/bpf/bpftool/perf.c2
-rw-r--r--tools/bpf/bpftool/prog.c6
-rw-r--r--tools/bpf/bpftool/xlated_dumper.c2
17 files changed, 125 insertions, 73 deletions
diff --git a/tools/bpf/bpftool/Documentation/bpftool-gen.rst b/tools/bpf/bpftool/Documentation/bpftool-gen.rst
index 86a87da97d0b..94d91322895a 100644
--- a/tools/bpf/bpftool/Documentation/bpftool-gen.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-gen.rst
@@ -196,7 +196,7 @@ and global variables.
#define __EXAMPLE_SKEL_H__
#include <stdlib.h>
- #include <libbpf.h>
+ #include <bpf/libbpf.h>
struct example {
struct bpf_object_skeleton *skeleton;
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index 39bc6f0f4f0b..c4e810335810 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -45,7 +45,7 @@ CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
-I$(srctree)/kernel/bpf/ \
-I$(srctree)/tools/include \
-I$(srctree)/tools/include/uapi \
- -I$(srctree)/tools/lib/bpf \
+ -I$(srctree)/tools/lib \
-I$(srctree)/tools/perf
CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"'
ifneq ($(EXTRA_CFLAGS),)
diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c
index e5bc97b71ceb..4ba90d81b6a1 100644
--- a/tools/bpf/bpftool/btf.c
+++ b/tools/bpf/bpftool/btf.c
@@ -8,15 +8,15 @@
#include <stdio.h>
#include <string.h>
#include <unistd.h>
-#include <bpf.h>
-#include <libbpf.h>
+#include <bpf/bpf.h>
+#include <bpf/btf.h>
+#include <bpf/libbpf.h>
#include <linux/btf.h>
#include <linux/hashtable.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
-#include "btf.h"
#include "json_writer.h"
#include "main.h"
@@ -370,6 +370,10 @@ static int dump_btf_c(const struct btf *btf,
if (IS_ERR(d))
return PTR_ERR(d);
+ printf("#ifndef BPF_NO_PRESERVE_ACCESS_INDEX\n");
+ printf("#pragma clang attribute push (__attribute__((preserve_access_index)), apply_to = record)\n");
+ printf("#endif\n\n");
+
if (root_type_cnt) {
for (i = 0; i < root_type_cnt; i++) {
err = btf_dump__dump_type(d, root_type_ids[i]);
@@ -386,6 +390,10 @@ static int dump_btf_c(const struct btf *btf,
}
}
+ printf("#ifndef BPF_NO_PRESERVE_ACCESS_INDEX\n");
+ printf("#pragma clang attribute pop\n");
+ printf("#endif\n");
+
done:
btf_dump__free(d);
return err;
@@ -524,7 +532,7 @@ static int do_dump(int argc, char **argv)
if (IS_ERR(btf)) {
err = PTR_ERR(btf);
btf = NULL;
- p_err("failed to load BTF from %s: %s",
+ p_err("failed to load BTF from %s: %s",
*argv, strerror(err));
goto done;
}
diff --git a/tools/bpf/bpftool/btf_dumper.c b/tools/bpf/bpftool/btf_dumper.c
index 397e5716ab6d..01cc52b834fa 100644
--- a/tools/bpf/bpftool/btf_dumper.c
+++ b/tools/bpf/bpftool/btf_dumper.c
@@ -8,8 +8,8 @@
#include <linux/bitops.h>
#include <linux/btf.h>
#include <linux/err.h>
+#include <bpf/btf.h>
-#include "btf.h"
#include "json_writer.h"
#include "main.h"
diff --git a/tools/bpf/bpftool/cgroup.c b/tools/bpf/bpftool/cgroup.c
index 2f017caa678d..62c6a1d7cd18 100644
--- a/tools/bpf/bpftool/cgroup.c
+++ b/tools/bpf/bpftool/cgroup.c
@@ -14,7 +14,7 @@
#include <sys/types.h>
#include <unistd.h>
-#include <bpf.h>
+#include <bpf/bpf.h>
#include "main.h"
diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
index 88264abaa738..b75b8ec5469c 100644
--- a/tools/bpf/bpftool/common.c
+++ b/tools/bpf/bpftool/common.c
@@ -20,8 +20,8 @@
#include <sys/stat.h>
#include <sys/vfs.h>
-#include <bpf.h>
-#include <libbpf.h> /* libbpf_num_possible_cpus */
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h> /* libbpf_num_possible_cpus */
#include "main.h"
diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c
index 03bdc5b3ac49..446ba891f1e2 100644
--- a/tools/bpf/bpftool/feature.c
+++ b/tools/bpf/bpftool/feature.c
@@ -12,8 +12,8 @@
#include <linux/filter.h>
#include <linux/limits.h>
-#include <bpf.h>
-#include <libbpf.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
#include <zlib.h>
#include "main.h"
@@ -572,6 +572,18 @@ probe_helpers_for_progtype(enum bpf_prog_type prog_type, bool supported_type,
printf("\n");
}
+static void
+probe_large_insn_limit(const char *define_prefix, __u32 ifindex)
+{
+ bool res;
+
+ res = bpf_probe_large_insn_limit(ifindex);
+ print_bool_feature("have_large_insn_limit",
+ "Large program size limit",
+ "HAVE_LARGE_INSN_LIMIT",
+ res, define_prefix);
+}
+
static int do_probe(int argc, char **argv)
{
enum probe_component target = COMPONENT_UNSPEC;
@@ -724,6 +736,12 @@ static int do_probe(int argc, char **argv)
probe_helpers_for_progtype(i, supported_types[i],
define_prefix, ifindex);
+ print_end_then_start_section("misc",
+ "Scanning miscellaneous eBPF features...",
+ "/*** eBPF misc features ***/",
+ define_prefix);
+ probe_large_insn_limit(define_prefix, ifindex);
+
exit_close_json:
if (json_output) {
/* End current "section" of probes */
diff --git a/tools/bpf/bpftool/gen.c b/tools/bpf/bpftool/gen.c
index 7ce09a9a6999..f8113b3646f5 100644
--- a/tools/bpf/bpftool/gen.c
+++ b/tools/bpf/bpftool/gen.c
@@ -12,15 +12,15 @@
#include <stdio.h>
#include <string.h>
#include <unistd.h>
-#include <bpf.h>
-#include <libbpf.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <unistd.h>
+#include <bpf/btf.h>
-#include "btf.h"
-#include "libbpf_internal.h"
+#include "bpf/libbpf_internal.h"
#include "json_writer.h"
#include "main.h"
@@ -333,7 +333,7 @@ static int do_skeleton(int argc, char **argv)
#define %2$s \n\
\n\
#include <stdlib.h> \n\
- #include <libbpf.h> \n\
+ #include <bpf/libbpf.h> \n\
\n\
struct %1$s { \n\
struct bpf_object_skeleton *skeleton; \n\
diff --git a/tools/bpf/bpftool/jit_disasm.c b/tools/bpf/bpftool/jit_disasm.c
index bfed711258ce..f7f5885aa3ba 100644
--- a/tools/bpf/bpftool/jit_disasm.c
+++ b/tools/bpf/bpftool/jit_disasm.c
@@ -24,7 +24,7 @@
#include <dis-asm.h>
#include <sys/stat.h>
#include <limits.h>
-#include <libbpf.h>
+#include <bpf/libbpf.h>
#include "json_writer.h"
#include "main.h"
diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index 1fe91c558508..6d41bbfc6459 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -9,8 +9,8 @@
#include <stdlib.h>
#include <string.h>
-#include <bpf.h>
-#include <libbpf.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
#include "main.h"
diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
index c01f76fa6876..e6c85680b34d 100644
--- a/tools/bpf/bpftool/map.c
+++ b/tools/bpf/bpftool/map.c
@@ -15,9 +15,9 @@
#include <sys/types.h>
#include <sys/stat.h>
-#include <bpf.h>
+#include <bpf/bpf.h>
+#include <bpf/btf.h>
-#include "btf.h"
#include "json_writer.h"
#include "main.h"
@@ -48,6 +48,7 @@ const char * const map_type_name[] = {
[BPF_MAP_TYPE_QUEUE] = "queue",
[BPF_MAP_TYPE_STACK] = "stack",
[BPF_MAP_TYPE_SK_STORAGE] = "sk_storage",
+ [BPF_MAP_TYPE_STRUCT_OPS] = "struct_ops",
};
const size_t map_type_name_size = ARRAY_SIZE(map_type_name);
@@ -251,6 +252,7 @@ static int do_dump_btf(const struct btf_dumper *d,
struct bpf_map_info *map_info, void *key,
void *value)
{
+ __u32 value_id;
int ret;
/* start of key-value pair */
@@ -264,9 +266,12 @@ static int do_dump_btf(const struct btf_dumper *d,
goto err_end_obj;
}
+ value_id = map_info->btf_vmlinux_value_type_id ?
+ : map_info->btf_value_type_id;
+
if (!map_is_per_cpu(map_info->type)) {
jsonw_name(d->jw, "value");
- ret = btf_dumper_type(d, map_info->btf_value_type_id, value);
+ ret = btf_dumper_type(d, value_id, value);
} else {
unsigned int i, n, step;
@@ -278,8 +283,7 @@ static int do_dump_btf(const struct btf_dumper *d,
jsonw_start_object(d->jw);
jsonw_int_field(d->jw, "cpu", i);
jsonw_name(d->jw, "value");
- ret = btf_dumper_type(d, map_info->btf_value_type_id,
- value + i * step);
+ ret = btf_dumper_type(d, value_id, value + i * step);
jsonw_end_object(d->jw);
if (ret)
break;
@@ -915,37 +919,63 @@ static int maps_have_btf(int *fds, int nb_fds)
{
struct bpf_map_info info = {};
__u32 len = sizeof(info);
- struct btf *btf = NULL;
int err, i;
for (i = 0; i < nb_fds; i++) {
err = bpf_obj_get_info_by_fd(fds[i], &info, &len);
if (err) {
p_err("can't get map info: %s", strerror(errno));
- goto err_close;
- }
-
- err = btf__get_from_id(info.btf_id, &btf);
- if (err) {
- p_err("failed to get btf");
- goto err_close;
+ return -1;
}
- if (!btf)
+ if (!info.btf_id)
return 0;
}
return 1;
+}
-err_close:
- for (; i < nb_fds; i++)
- close(fds[i]);
- return -1;
+static struct btf *btf_vmlinux;
+
+static struct btf *get_map_kv_btf(const struct bpf_map_info *info)
+{
+ struct btf *btf = NULL;
+
+ if (info->btf_vmlinux_value_type_id) {
+ if (!btf_vmlinux) {
+ btf_vmlinux = libbpf_find_kernel_btf();
+ if (IS_ERR(btf_vmlinux))
+ p_err("failed to get kernel btf");
+ }
+ return btf_vmlinux;
+ } else if (info->btf_value_type_id) {
+ int err;
+
+ err = btf__get_from_id(info->btf_id, &btf);
+ if (err || !btf) {
+ p_err("failed to get btf");
+ btf = err ? ERR_PTR(err) : ERR_PTR(-ESRCH);
+ }
+ }
+
+ return btf;
+}
+
+static void free_map_kv_btf(struct btf *btf)
+{
+ if (!IS_ERR(btf) && btf != btf_vmlinux)
+ btf__free(btf);
+}
+
+static void free_btf_vmlinux(void)
+{
+ if (!IS_ERR(btf_vmlinux))
+ btf__free(btf_vmlinux);
}
static int
map_dump(int fd, struct bpf_map_info *info, json_writer_t *wtr,
- bool enable_btf, bool show_header)
+ bool show_header)
{
void *key, *value, *prev_key;
unsigned int num_elems = 0;
@@ -962,18 +992,13 @@ map_dump(int fd, struct bpf_map_info *info, json_writer_t *wtr,
prev_key = NULL;
- if (enable_btf) {
- err = btf__get_from_id(info->btf_id, &btf);
- if (err || !btf) {
- /* enable_btf is true only if we've already checked
- * that all maps have BTF information.
- */
- p_err("failed to get btf");
+ if (wtr) {
+ btf = get_map_kv_btf(info);
+ if (IS_ERR(btf)) {
+ err = PTR_ERR(btf);
goto exit_free;
}
- }
- if (wtr) {
if (show_header) {
jsonw_start_object(wtr); /* map object */
show_map_header_json(info, wtr);
@@ -1012,7 +1037,7 @@ exit_free:
free(key);
free(value);
close(fd);
- btf__free(btf);
+ free_map_kv_btf(btf);
return err;
}
@@ -1021,7 +1046,7 @@ static int do_dump(int argc, char **argv)
{
json_writer_t *wtr = NULL, *btf_wtr = NULL;
struct bpf_map_info info = {};
- int nb_fds, i = 0, btf = 0;
+ int nb_fds, i = 0;
__u32 len = sizeof(info);
int *fds = NULL;
int err = -1;
@@ -1041,17 +1066,17 @@ static int do_dump(int argc, char **argv)
if (json_output) {
wtr = json_wtr;
} else {
- btf = maps_have_btf(fds, nb_fds);
- if (btf < 0)
+ int do_plain_btf;
+
+ do_plain_btf = maps_have_btf(fds, nb_fds);
+ if (do_plain_btf < 0)
goto exit_close;
- if (btf) {
+
+ if (do_plain_btf) {
btf_wtr = get_btf_writer();
- if (btf_wtr) {
- wtr = btf_wtr;
- } else {
+ wtr = btf_wtr;
+ if (!btf_wtr)
p_info("failed to create json writer for btf. falling back to plain output");
- btf = 0;
- }
}
}
@@ -1062,7 +1087,7 @@ static int do_dump(int argc, char **argv)
p_err("can't get map info: %s", strerror(errno));
break;
}
- err = map_dump(fds[i], &info, wtr, btf, nb_fds > 1);
+ err = map_dump(fds[i], &info, wtr, nb_fds > 1);
if (!wtr && i != nb_fds - 1)
printf("\n");
@@ -1073,13 +1098,14 @@ static int do_dump(int argc, char **argv)
if (wtr && nb_fds > 1)
jsonw_end_array(wtr); /* root array */
- if (btf)
+ if (btf_wtr)
jsonw_destroy(&btf_wtr);
exit_close:
for (; i < nb_fds; i++)
close(fds[i]);
exit_free:
free(fds);
+ free_btf_vmlinux();
return err;
}
diff --git a/tools/bpf/bpftool/map_perf_ring.c b/tools/bpf/bpftool/map_perf_ring.c
index 4c5531d1a450..d9b29c17fbb8 100644
--- a/tools/bpf/bpftool/map_perf_ring.c
+++ b/tools/bpf/bpftool/map_perf_ring.c
@@ -6,7 +6,7 @@
*/
#include <errno.h>
#include <fcntl.h>
-#include <libbpf.h>
+#include <bpf/libbpf.h>
#include <poll.h>
#include <signal.h>
#include <stdbool.h>
@@ -21,7 +21,7 @@
#include <sys/mman.h>
#include <sys/syscall.h>
-#include <bpf.h>
+#include <bpf/bpf.h>
#include <perf-sys.h>
#include "main.h"
diff --git a/tools/bpf/bpftool/net.c b/tools/bpf/bpftool/net.c
index d93bee298e54..c5e3895b7c8b 100644
--- a/tools/bpf/bpftool/net.c
+++ b/tools/bpf/bpftool/net.c
@@ -7,7 +7,8 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include <libbpf.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
#include <net/if.h>
#include <linux/if.h>
#include <linux/rtnetlink.h>
@@ -16,9 +17,8 @@
#include <sys/stat.h>
#include <sys/types.h>
-#include <bpf.h>
-#include <nlattr.h>
-#include "libbpf_internal.h"
+#include "bpf/nlattr.h"
+#include "bpf/libbpf_internal.h"
#include "main.h"
#include "netlink_dumper.h"
diff --git a/tools/bpf/bpftool/netlink_dumper.c b/tools/bpf/bpftool/netlink_dumper.c
index 550a0f537eed..5f65140b003b 100644
--- a/tools/bpf/bpftool/netlink_dumper.c
+++ b/tools/bpf/bpftool/netlink_dumper.c
@@ -3,11 +3,11 @@
#include <stdlib.h>
#include <string.h>
-#include <libbpf.h>
+#include <bpf/libbpf.h>
#include <linux/rtnetlink.h>
#include <linux/tc_act/tc_bpf.h>
-#include <nlattr.h>
+#include "bpf/nlattr.h"
#include "main.h"
#include "netlink_dumper.h"
diff --git a/tools/bpf/bpftool/perf.c b/tools/bpf/bpftool/perf.c
index b2046f33e23f..3341aa14acda 100644
--- a/tools/bpf/bpftool/perf.c
+++ b/tools/bpf/bpftool/perf.c
@@ -13,7 +13,7 @@
#include <unistd.h>
#include <ftw.h>
-#include <bpf.h>
+#include <bpf/bpf.h>
#include "main.h"
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index 47a61ac42dc0..a3521deca869 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -17,9 +17,9 @@
#include <linux/err.h>
#include <linux/sizes.h>
-#include <bpf.h>
-#include <btf.h>
-#include <libbpf.h>
+#include <bpf/bpf.h>
+#include <bpf/btf.h>
+#include <bpf/libbpf.h>
#include "cfg.h"
#include "main.h"
diff --git a/tools/bpf/bpftool/xlated_dumper.c b/tools/bpf/bpftool/xlated_dumper.c
index 5b91ee65a080..8608cd68cdd0 100644
--- a/tools/bpf/bpftool/xlated_dumper.c
+++ b/tools/bpf/bpftool/xlated_dumper.c
@@ -7,7 +7,7 @@
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
-#include <libbpf.h>
+#include <bpf/libbpf.h>
#include "disasm.h"
#include "json_writer.h"
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 04:36:55 +0000