diff options
| author | inwardvessel <5782523+inwardvessel@users.noreply.github.com> | 2023-09-21 11:13:36 -0700 |
|---|---|---|
| committer | Hengqi Chen <chenhengqi@outlook.com> | 2023-10-04 16:57:04 +0800 |
| commit | 32be0a338e9fc89f21168ac7fa3eb6557baa9ba1 (patch) | |
| tree | a6b334bc63f76c410652e0729378c816b80553d5 | |
| parent | ec49363e2e9daec026ee6cae4c5fc316f8fab0ff (diff) | |
| download | bcc-32be0a338e9fc89f21168ac7fa3eb6557baa9ba1.tar.gz | |
use tid instead of tgid
| -rw-r--r-- | libbpf-tools/memleak.bpf.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/libbpf-tools/memleak.bpf.c b/libbpf-tools/memleak.bpf.c index 6556b540..3352f228 100644 --- a/libbpf-tools/memleak.bpf.c +++ b/libbpf-tools/memleak.bpf.c @@ -18,7 +18,7 @@ const volatile bool wa_missing_free = false; struct { __uint(type, BPF_MAP_TYPE_HASH); - __type(key, pid_t); + __type(key, u32); __type(value, u64); __uint(max_entries, 10240); } sizes SEC(".maps"); @@ -96,8 +96,8 @@ static int gen_alloc_enter(size_t size) return 0; } - const pid_t pid = bpf_get_current_pid_tgid() >> 32; - bpf_map_update_elem(&sizes, &pid, &size, BPF_ANY); + const u32 tid = bpf_get_current_pid_tgid(); + bpf_map_update_elem(&sizes, &tid, &size, BPF_ANY); if (trace_all) bpf_printk("alloc entered, size = %lu\n", size); @@ -107,17 +107,17 @@ static int gen_alloc_enter(size_t size) static int gen_alloc_exit2(void *ctx, u64 address) { - const pid_t pid = bpf_get_current_pid_tgid() >> 32; + const u32 tid = bpf_get_current_pid_tgid(); struct alloc_info info; - const u64* size = bpf_map_lookup_elem(&sizes, &pid); + const u64* size = bpf_map_lookup_elem(&sizes, &tid); if (!size) return 0; // missed alloc entry __builtin_memset(&info, 0, sizeof(info)); info.size = *size; - bpf_map_delete_elem(&sizes, &pid); + bpf_map_delete_elem(&sizes, &tid); if (address != 0) { info.timestamp_ns = bpf_ktime_get_ns(); @@ -227,8 +227,8 @@ SEC("uprobe") int BPF_KPROBE(posix_memalign_enter, void **memptr, size_t alignment, size_t size) { const u64 memptr64 = (u64)(size_t)memptr; - const u64 pid = bpf_get_current_pid_tgid() >> 32; - bpf_map_update_elem(&memptrs, &pid, &memptr64, BPF_ANY); + const u32 tid = bpf_get_current_pid_tgid(); + bpf_map_update_elem(&memptrs, &tid, &memptr64, BPF_ANY); return gen_alloc_enter(size); } @@ -236,15 +236,15 @@ int BPF_KPROBE(posix_memalign_enter, void **memptr, size_t alignment, size_t siz SEC("uretprobe") int BPF_KRETPROBE(posix_memalign_exit) { - const u64 pid = bpf_get_current_pid_tgid() >> 32; u64 *memptr64; void *addr; + const u32 tid = bpf_get_current_pid_tgid(); - memptr64 = bpf_map_lookup_elem(&memptrs, &pid); + memptr64 = bpf_map_lookup_elem(&memptrs, &tid); if (!memptr64) return 0; - bpf_map_delete_elem(&memptrs, &pid); + bpf_map_delete_elem(&memptrs, &tid); if (bpf_probe_read_user(&addr, sizeof(void*), (void*)(size_t)*memptr64)) return 0; |