diff options
| author |   Pu Lehui <pulehui@huawei.com> | 2022-04-19 22:52:37 +0800 |
|---|---|---|
| committer |   Andrii Nakryiko <andrii@kernel.org> | 2022-04-19 21:59:35 -0700 |
| commit | 5af25a410acb8d34acb11024d752f0ea3491decf (patch) | |
| tree | a25eef1a7a78ab9ce10fe2108f63719e03d0dbfa /tools/lib/bpf/usdt.c | |
| parent | bpf: Fix usage of trace RCU in local storage. (diff) | |
| download | linux-dev-5af25a410acb8d34acb11024d752f0ea3491decf.tar.xz linux-dev-5af25a410acb8d34acb11024d752f0ea3491decf.zip | |
libbpf: Fix usdt_cookie being cast to 32 bits
The usdt_cookie is defined as __u64, which should not be
used as a long type because it will be cast to 32 bits
in 32-bit platforms.
Signed-off-by: Pu Lehui <pulehui@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220419145238.482134-2-pulehui@huawei.com
Diffstat (limited to 'tools/lib/bpf/usdt.c')
| -rw-r--r-- | tools/lib/bpf/usdt.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/tools/lib/bpf/usdt.c b/tools/lib/bpf/usdt.c index 934c25301ac1..8e77a7260113 100644 --- a/tools/lib/bpf/usdt.c +++ b/tools/lib/bpf/usdt.c @@ -557,10 +557,10 @@ static int parse_usdt_note(Elf *elf, const char *path, long base_addr, GElf_Nhdr *nhdr, const char *data, size_t name_off, size_t desc_off, struct usdt_note *usdt_note); -static int parse_usdt_spec(struct usdt_spec *spec, const struct usdt_note *note, long usdt_cookie); +static int parse_usdt_spec(struct usdt_spec *spec, const struct usdt_note *note, __u64 usdt_cookie); static int collect_usdt_targets(struct usdt_manager *man, Elf *elf, const char *path, pid_t pid, - const char *usdt_provider, const char *usdt_name, long usdt_cookie, + const char *usdt_provider, const char *usdt_name, __u64 usdt_cookie, struct usdt_target **out_targets, size_t *out_target_cnt) { size_t off, name_off, desc_off, seg_cnt = 0, lib_seg_cnt = 0, target_cnt = 0; @@ -939,7 +939,7 @@ static int allocate_spec_id(struct usdt_manager *man, struct hashmap *specs_hash struct bpf_link *usdt_manager_attach_usdt(struct usdt_manager *man, const struct bpf_program *prog, pid_t pid, const char *path, const char *usdt_provider, const char *usdt_name, - long usdt_cookie) + __u64 usdt_cookie) { int i, fd, err, spec_map_fd, ip_map_fd; LIBBPF_OPTS(bpf_uprobe_opts, opts); @@ -1141,7 +1141,7 @@ static int parse_usdt_note(Elf *elf, const char *path, long base_addr, static int parse_usdt_arg(const char *arg_str, int arg_num, struct usdt_arg_spec *arg); -static int parse_usdt_spec(struct usdt_spec *spec, const struct usdt_note *note, long usdt_cookie) +static int parse_usdt_spec(struct usdt_spec *spec, const struct usdt_note *note, __u64 usdt_cookie) { const char *s; int len; |