13 #define SAVEt_NSTAB 12
14 #define SAVEt_SVREF 13
16 #define SAVEt_FREESV 15
17 #define SAVEt_FREEOP 16
18 #define SAVEt_FREEPV 17
19 #define SAVEt_CLEARSV 18
20 #define SAVEt_DELETE 19
21 #define SAVEt_DESTRUCTOR 20
22 #define SAVEt_REGCONTEXT 21
23 #define SAVEt_STACK_POS 22
26 #define SSCHECK(need) if (savestack_ix + need > savestack_max) savestack_grow()
27 #define SSPUSHINT(i) (savestack[savestack_ix++].any_i32 = (I32)(i))
28 #define SSPUSHLONG(i) (savestack[savestack_ix++].any_long = (long)(i))
29 #define SSPUSHIV(i) (savestack[savestack_ix++].any_iv = (IV)(i))
30 #define SSPUSHPTR(p) (savestack[savestack_ix++].any_ptr = (void*)(p))
31 #define SSPUSHDPTR(p) (savestack[savestack_ix++].any_dptr = (p))
32 #define SSPOPINT (savestack[--savestack_ix].any_i32)
33 #define SSPOPLONG (savestack[--savestack_ix].any_long)
34 #define SSPOPIV (savestack[--savestack_ix].any_iv)
35 #define SSPOPPTR (savestack[--savestack_ix].any_ptr)
36 #define SSPOPDPTR (savestack[--savestack_ix].any_dptr)
38 #define SAVETMPS save_int((int*)&tmps_floor), tmps_floor = tmps_ix
39 #define FREETMPS if (tmps_ix > tmps_floor) free_tmps()
41 #define FREE_TMPS() FREETMPS
44 #define ENTER push_scope()
45 #define LEAVE pop_scope()
46 #define LEAVE_SCOPE(old) if (savestack_ix > old) leave_scope(old)
49 * Not using SOFT_CAST on SAVEFREESV and SAVEFREESV
50 * because these are used for several kinds of pointer values
52 #define SAVEI16(i) save_I16(SOFT_CAST(I16*)&(i))
53 #define SAVEI32(i) save_I32(SOFT_CAST(I32*)&(i))
54 #define SAVEINT(i) save_int(SOFT_CAST(int*)&(i))
55 #define SAVEIV(i) save_iv(SOFT_CAST(IV*)&(i))
56 #define SAVELONG(l) save_long(SOFT_CAST(long*)&(l))
57 #define SAVESPTR(s) save_sptr((SV**)&(s))
58 #define SAVEPPTR(s) save_pptr(SOFT_CAST(char**)&(s))
59 #define SAVEFREESV(s) save_freesv((SV*)(s))
60 #define SAVEFREEOP(o) save_freeop(SOFT_CAST(OP*)(o))
61 #define SAVEFREEPV(p) save_freepv(SOFT_CAST(char*)(p))
62 #define SAVECLEARSV(sv) save_clearsv(SOFT_CAST(SV**)&(sv))
63 #define SAVEDELETE(h,k,l) \
64 save_delete(SOFT_CAST(HV*)(h), SOFT_CAST(char*)(k), (I32)(l))
65 #define SAVEDESTRUCTOR(f,p) \
66 save_destructor(SOFT_CAST(void(*)_((void*)))(f),SOFT_CAST(void*)(p))
67 #define SAVESTACK_POS() STMT_START { \
69 SSPUSHINT(stack_sp - stack_base); \
70 SSPUSHINT(SAVEt_STACK_POS); \
74 /* A jmpenv packages the state required to perform a proper non-local jump.
75 * Note that there is a start_env initialized when perl starts, and top_env
76 * points to this initially, so top_env should always be non-null.
78 * Existence of a non-null top_env->je_prev implies it is valid to call
79 * longjmp() at that runlevel (we make sure start_env.je_prev is always
80 * null to ensure this).
82 * je_mustcatch, when set at any runlevel to TRUE, means eval ops must
83 * establish a local jmpenv to handle exception traps. Care must be taken
84 * to restore the previous value of je_mustcatch before exiting the
85 * stack frame iff JMPENV_PUSH was not called in that stack frame.
90 struct jmpenv * je_prev;
92 int je_ret; /* return value of last setjmp() */
93 bool je_mustcatch; /* longjmp()s must be caught locally */
96 typedef struct jmpenv JMPENV;
98 #define dJMPENV JMPENV cur_env
99 #define JMPENV_PUSH(v) \
101 cur_env.je_prev = top_env; \
102 cur_env.je_ret = Sigsetjmp(cur_env.je_buf, 1); \
103 top_env = &cur_env; \
104 cur_env.je_mustcatch = FALSE; \
105 (v) = cur_env.je_ret; \
108 STMT_START { top_env = cur_env.je_prev; } STMT_END
109 #define JMPENV_JUMP(v) \
111 if (top_env->je_prev) \
112 Siglongjmp(top_env->je_buf, (v)); \
114 exit(STATUS_NATIVE_EXPORT); \
115 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); \
119 #define CATCH_GET (top_env->je_mustcatch)
120 #define CATCH_SET(v) (top_env->je_mustcatch = (v))