[perl #120043] fix some warnings

[perl5.git] / cop.h

diff --git a/cop.h b/cop.h
index 2a976ad..6950814 100644 (file)
--- a/cop.h
+++ b/cop.h
@@ -31,7 +31,7 @@
 
 struct jmpenv {
     struct jmpenv *    je_prev;
-    Sigjmp_buf         je_buf;         /* only for use if !je_throw */
+    Sigjmp_buf         je_buf;         /* uninit if je_prev is NULL */
     int                        je_ret;         /* last exception thrown */
     bool               je_mustcatch;   /* need to call longjmp()? */
 };
@@ -50,10 +50,11 @@ typedef struct jmpenv JMPENV;
 
 #define JMPENV_BOOTSTRAP \
     STMT_START {                               \
-       Zero(&PL_start_env, 1, JMPENV);         \
+       PERL_POISON_EXPR(PoisonNew(&PL_start_env, 1, JMPENV));\
+       PL_top_env = &PL_start_env;             \
+       PL_start_env.je_prev = NULL;            \
        PL_start_env.je_ret = -1;               \
        PL_start_env.je_mustcatch = TRUE;       \
-       PL_top_env = &PL_start_env;             \
     } STMT_END
 
 /*