python: Fix broken calculation on arm64 (#2562)

Signed-off-by: Kemal Akkoyun <[email protected]>
parca-dev · Feb 27, 2024 · 575dd4e · 575dd4e
2 parents 248e659 + 90ae3c0
commit 575dd4e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/bpf/unwinders/pyperf.bpf.c b/bpf/unwinders/pyperf.bpf.c
@@ -133,7 +133,7 @@ static inline __attribute__((__always_inline__)) int tls_read(void *tls_base, In
     if (bpf_probe_read_user(&tls_addr, sizeof(tls_addr), tls_base - libc_offsets->pthread_size + libc_offsets->pthread_block)) {
       return -1;
     }
-    tls_addr = key * libc_offsets->pthread_key_data_size;
+    tls_addr = tls_addr + key * libc_offsets->pthread_key_data_size;
 #else
 #error "Unsupported platform"
 #endif