X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=include%2Flttng%2Fconstant.h;h=10f1bf694503fc5e42d9a20632fb5c5c9c2fdce7;hp=ed3ebe073b25c973495d059372a8a32e8ce091d9;hb=fae9a062a468c47fc71ef7aa96374bf9d87d137e;hpb=2fa605f7de6b95f50fc864072bc1445c61eb2c79

diff --git a/include/lttng/constant.h b/include/lttng/constant.h
index ed3ebe073..10f1bf694 100644
--- a/include/lttng/constant.h
+++ b/include/lttng/constant.h
@@ -45,6 +45,13 @@
 /*
  * Event symbol length. Copied from LTTng kernel ABI.
  */
-#define LTTNG_SYMBOL_NAME_LEN             256
+#define LTTNG_SYMBOL_NAME_LEN			256
+
+/*
+ * PROC(5) mentions that PID_MAX_LIMIT may not exceed 2^22 on 64-bit HW.
+ * We prefer to use 32-bits for simplicity's sake.
+ */
+#define LTTNG_MAX_PID				INT32_MAX
+#define LTTNG_MAX_PID_STR			"2147483647"
 
 #endif /* LTTNG_CONSTANT_H */