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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2023-02-15 00:12:16 +0100 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2023-02-16 15:32:45 -0800 |
| commit | 38f0408ef756e738387f7d8f62b8d58ca5938da4 (patch) | |
| tree | d29cd0b378e4dba10f0f6c0c981ea9a37944ecd4 /tools/bpf/bpftool/btf.c | |
| parent | 629dfc660cae86a6a48d19f5295226d03caae673 (diff) | |
| download | linux-38f0408ef756e738387f7d8f62b8d58ca5938da4.tar.gz linux-38f0408ef756e738387f7d8f62b8d58ca5938da4.tar.bz2 linux-38f0408ef756e738387f7d8f62b8d58ca5938da4.zip | |
bpftool: Use bpf_{btf,link,map,prog}_get_info_by_fd()
Use the new type-safe wrappers around bpf_obj_get_info_by_fd().
Split the bpf_obj_get_info_by_fd() call in build_btf_type_table() in
two, since knowing the type helps with the Memory Sanitizer.
Improve map_parse_fd_and_info() type safety by using
struct bpf_map_info * instead of void * for info.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20230214231221.249277-4-iii@linux.ibm.com
Diffstat (limited to 'tools/bpf/bpftool/btf.c')
| -rw-r--r-- | tools/bpf/bpftool/btf.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c index 352290ba7b29..91fcb75babe3 100644 --- a/tools/bpf/bpftool/btf.c +++ b/tools/bpf/bpftool/btf.c @@ -537,7 +537,7 @@ static bool btf_is_kernel_module(__u32 btf_id) len = sizeof(btf_info); btf_info.name = ptr_to_u64(btf_name); btf_info.name_len = sizeof(btf_name); - err = bpf_obj_get_info_by_fd(btf_fd, &btf_info, &len); + err = bpf_btf_get_info_by_fd(btf_fd, &btf_info, &len); close(btf_fd); if (err) { p_err("can't get BTF (ID %u) object info: %s", btf_id, strerror(errno)); @@ -606,7 +606,7 @@ static int do_dump(int argc, char **argv) if (fd < 0) return -1; - err = bpf_obj_get_info_by_fd(fd, &info, &len); + err = bpf_prog_get_info_by_fd(fd, &info, &len); if (err) { p_err("can't get prog info: %s", strerror(errno)); goto done; @@ -789,7 +789,10 @@ build_btf_type_table(struct hashmap *tab, enum bpf_obj_type type, } memset(info, 0, *len); - err = bpf_obj_get_info_by_fd(fd, info, len); + if (type == BPF_OBJ_PROG) + err = bpf_prog_get_info_by_fd(fd, info, len); + else + err = bpf_map_get_info_by_fd(fd, info, len); close(fd); if (err) { p_err("can't get %s info: %s", names[type], @@ -931,7 +934,7 @@ show_btf(int fd, struct hashmap *btf_prog_table, int err; memset(&info, 0, sizeof(info)); - err = bpf_obj_get_info_by_fd(fd, &info, &len); + err = bpf_btf_get_info_by_fd(fd, &info, &len); if (err) { p_err("can't get BTF object info: %s", strerror(errno)); return -1; @@ -943,7 +946,7 @@ show_btf(int fd, struct hashmap *btf_prog_table, info.name = ptr_to_u64(name); len = sizeof(info); - err = bpf_obj_get_info_by_fd(fd, &info, &len); + err = bpf_btf_get_info_by_fd(fd, &info, &len); if (err) { p_err("can't get BTF object info: %s", strerror(errno)); return -1; |