-/* A jmpenv packages the state required to perform a proper non-local jump.
- * Note that there is a start_env initialized when perl starts, and top_env
- * points to this initially, so top_env should always be non-null.
- *
- * Existence of a non-null top_env->je_prev implies it is valid to call
- * longjmp() at that runlevel (we make sure start_env.je_prev is always
- * null to ensure this).
- *
- * je_mustcatch, when set at any runlevel to TRUE, means eval ops must
- * establish a local jmpenv to handle exception traps. Care must be taken
- * to restore the previous value of je_mustcatch before exiting the
- * stack frame iff JMPENV_PUSH was not called in that stack frame.
- * GSAR 97-03-27
- */
-
-struct jmpenv {
- struct jmpenv * je_prev;
- Sigjmp_buf je_buf; /* only for use if !je_throw */
- int je_ret; /* last exception thrown */
- bool je_mustcatch; /* need to call longjmp()? */
-};
-
-typedef struct jmpenv JMPENV;
-
-#ifdef OP_IN_REGISTER
-#define OP_REG_TO_MEM PL_opsave = op
-#define OP_MEM_TO_REG op = PL_opsave
-#else
-#define OP_REG_TO_MEM NOOP
-#define OP_MEM_TO_REG NOOP
-#endif
-
-/*
- * How to build the first jmpenv.
- *
- * top_env needs to be non-zero. It points to an area
- * in which longjmp() stuff is stored, as C callstack
- * info there at least is thread specific this has to
- * be per-thread. Otherwise a 'die' in a thread gives
- * that thread the C stack of last thread to do an eval {}!
- */
-
-#define JMPENV_BOOTSTRAP \
- STMT_START { \
- Zero(&PL_start_env, 1, JMPENV); \
- PL_start_env.je_ret = -1; \
- PL_start_env.je_mustcatch = TRUE; \
- PL_top_env = &PL_start_env; \
- } STMT_END
+#define save_freesv(op) save_pushptr((void *)(op), SAVEt_FREESV)
+#define save_mortalizesv(op) save_pushptr((void *)(op), SAVEt_MORTALIZESV)
+#define save_freeop(op) save_pushptr((void *)(op), SAVEt_FREEOP)
+#define save_freepv(pv) save_pushptr((void *)(pv), SAVEt_FREEPV)
+#define save_op() save_pushptr((void *)(PL_op), SAVEt_OP)