diff options
| author |   Andrii Nakryiko <andriin@fb.com> | 2019-07-08 21:00:07 -0700 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-07-12 14:51:03 +0200 |
| commit | 36db2a94f19ae1fcf1e6d8253df0c32f90f92860 (patch) | |
| tree | c5303ec4f058cdda3566e2df0becd7fb15d32262 /tools | |
| parent | bpf: fix precision bit propagation for BPF_ST instructions (diff) | |
| download | linux-dev-36db2a94f19ae1fcf1e6d8253df0c32f90f92860.tar.xz linux-dev-36db2a94f19ae1fcf1e6d8253df0c32f90f92860.zip | |
libbpf: fix ptr to u64 conversion warning on 32-bit platforms
On 32-bit platforms compiler complains about conversion:
libbpf.c: In function ‘perf_event_open_probe’:
libbpf.c:4112:17: error: cast from pointer to integer of different
size [-Werror=pointer-to-int-cast]
attr.config1 = (uint64_t)(void *)name; /* kprobe_func or uprobe_path */
^
Reported-by: Matt Hart <matthew.hart@linaro.org>
Fixes: b26500274767 ("libbpf: add kprobe/uprobe attach API")
Tested-by: Matt Hart <matthew.hart@linaro.org>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/lib/bpf/libbpf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index ed07789b3e62..794dd5064ae8 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -4126,8 +4126,8 @@ static int perf_event_open_probe(bool uprobe, bool retprobe, const char *name, } attr.size = sizeof(attr); attr.type = type; - attr.config1 = (uint64_t)(void *)name; /* kprobe_func or uprobe_path */ - attr.config2 = offset; /* kprobe_addr or probe_offset */ + attr.config1 = ptr_to_u64(name); /* kprobe_func or uprobe_path */ + attr.config2 = offset; /* kprobe_addr or probe_offset */ /* pid filter is meaningful only for uprobes */ pfd = syscall(__NR_perf_event_open, &attr, |