lib/bpf/libbpf_probes.c

1 // SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
21 /* On Ubuntu LINUX_VERSION_CODE doesn't correspond to info.release,
26  *   Ubuntu 5.4.0-12.15-generic 5.4.8
29  * uname() call will return 5.4.0 in info.release.
53 /* On Debian LINUX_VERSION_CODE doesn't correspond to info.release.
55  * Debian 10 looks like the below.
57  *   utsname::release   4.19.0-22-amd64
58  *   utsname::version   #1 SMP Debian 4.19.260-1 (2022-09-29)
61  * uname() call will return 4.19.0 in info.release.
68 	p = strstr(info->version, "Debian ");  in get_debian_kernel_version()
70 		/* This is not a Debian kernel. */  in get_debian_kernel_version()
74 	if (sscanf(p, "Debian %u.%u.%u", &major, &minor, &patch) != 3)  in get_debian_kernel_version()
92 	/* Check if this is a Debian kernel. */  in get_kernel_version()
97 	if (sscanf(info.release, "%u.%u.%u", &major, &minor, &patch) != 3)  in get_kernel_version()
143 		exp_err = -EINVAL;  in probe_prog_load()
152 		exp_err = -EINVAL;  in probe_prog_load()
159 		exp_err = -524; /* -ENOTSUPP */  in probe_prog_load()
188 		return -EOPNOTSUPP;  in probe_prog_load()
192 	err = -errno;  in probe_prog_load()
215 		return libbpf_err(-EINVAL);  in libbpf_probe_bpf_prog_type()
243 		return -ENOMEM;  in libbpf__load_raw_btf()
287 	int fd = -1, btf_fd = -1, fd_inner = -1, exp_err = 0, err = 0;  in probe_map_create()
332 		/* we'll get -ENOTSUPP for invalid BTF type ID for struct_ops */  in probe_map_create()
334 		opts.value_type_btf_obj_fd = -1;  in probe_map_create()
335 		exp_err = -524; /* -ENOTSUPP */  in probe_map_create()
369 		return -EOPNOTSUPP;  in probe_map_create()
389 	err = -errno;  in probe_map_create()
410 		return libbpf_err(-EINVAL);  in libbpf_probe_bpf_map_type()
428 		return libbpf_err(-EINVAL);  in libbpf_probe_bpf_helper()
431 	 * support, so bail out with -EOPNOTSUPP error  in libbpf_probe_bpf_helper()
438 		return -EOPNOTSUPP;  in libbpf_probe_bpf_helper()