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d6376244 JH |
1 | /* scope.h |
2 | * | |
4bb101f2 JH |
3 | * Copyright (C) 1993, 1994, 1996, 1997, 1998, 1999, |
4 | * 2000, 2001, 2002, by Larry Wall and others | |
d6376244 JH |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
b9d12d37 GS |
11 | #define SAVEt_ITEM 0 |
12 | #define SAVEt_SV 1 | |
13 | #define SAVEt_AV 2 | |
14 | #define SAVEt_HV 3 | |
15 | #define SAVEt_INT 4 | |
16 | #define SAVEt_LONG 5 | |
17 | #define SAVEt_I32 6 | |
18 | #define SAVEt_IV 7 | |
19 | #define SAVEt_SPTR 8 | |
20 | #define SAVEt_APTR 9 | |
21 | #define SAVEt_HPTR 10 | |
22 | #define SAVEt_PPTR 11 | |
23 | #define SAVEt_NSTAB 12 | |
24 | #define SAVEt_SVREF 13 | |
25 | #define SAVEt_GP 14 | |
26 | #define SAVEt_FREESV 15 | |
27 | #define SAVEt_FREEOP 16 | |
28 | #define SAVEt_FREEPV 17 | |
29 | #define SAVEt_CLEARSV 18 | |
30 | #define SAVEt_DELETE 19 | |
31 | #define SAVEt_DESTRUCTOR 20 | |
32 | #define SAVEt_REGCONTEXT 21 | |
33 | #define SAVEt_STACK_POS 22 | |
34 | #define SAVEt_I16 23 | |
35 | #define SAVEt_AELEM 24 | |
36 | #define SAVEt_HELEM 25 | |
37 | #define SAVEt_OP 26 | |
38 | #define SAVEt_HINTS 27 | |
39 | #define SAVEt_ALLOC 28 | |
40 | #define SAVEt_GENERIC_SVREF 29 | |
c76ac1ee | 41 | #define SAVEt_DESTRUCTOR_X 30 |
7766f137 | 42 | #define SAVEt_VPTR 31 |
e8347627 | 43 | #define SAVEt_I8 32 |
354992b1 | 44 | #define SAVEt_COMPPAD 33 |
f4dd75d9 | 45 | #define SAVEt_GENERIC_PVREF 34 |
c3564e5c | 46 | #define SAVEt_PADSV 35 |
26d9b02f | 47 | #define SAVEt_MORTALIZESV 36 |
05ec9bb3 | 48 | #define SAVEt_SHARED_PVREF 37 |
9febdf04 | 49 | #define SAVEt_BOOL 38 |
14f338dc | 50 | #define SAVEt_SET_SVFLAGS 39 |
79072805 | 51 | |
b03c0a3a | 52 | #ifndef SCOPE_SAVES_SIGNAL_MASK |
1b266415 | 53 | #define SCOPE_SAVES_SIGNAL_MASK 0 |
b03c0a3a NIS |
54 | #endif |
55 | ||
4b3c1a47 AE |
56 | #define SSCHECK(need) if (PL_savestack_ix + (need) > PL_savestack_max) savestack_grow() |
57 | #define SSGROW(need) if (PL_savestack_ix + (need) > PL_savestack_max) savestack_grow_cnt(need) | |
3280af22 NIS |
58 | #define SSPUSHINT(i) (PL_savestack[PL_savestack_ix++].any_i32 = (I32)(i)) |
59 | #define SSPUSHLONG(i) (PL_savestack[PL_savestack_ix++].any_long = (long)(i)) | |
9febdf04 | 60 | #define SSPUSHBOOL(p) (PL_savestack[PL_savestack_ix++].any_bool = (p)) |
3280af22 NIS |
61 | #define SSPUSHIV(i) (PL_savestack[PL_savestack_ix++].any_iv = (IV)(i)) |
62 | #define SSPUSHPTR(p) (PL_savestack[PL_savestack_ix++].any_ptr = (void*)(p)) | |
63 | #define SSPUSHDPTR(p) (PL_savestack[PL_savestack_ix++].any_dptr = (p)) | |
c76ac1ee | 64 | #define SSPUSHDXPTR(p) (PL_savestack[PL_savestack_ix++].any_dxptr = (p)) |
3280af22 NIS |
65 | #define SSPOPINT (PL_savestack[--PL_savestack_ix].any_i32) |
66 | #define SSPOPLONG (PL_savestack[--PL_savestack_ix].any_long) | |
9febdf04 | 67 | #define SSPOPBOOL (PL_savestack[--PL_savestack_ix].any_bool) |
3280af22 NIS |
68 | #define SSPOPIV (PL_savestack[--PL_savestack_ix].any_iv) |
69 | #define SSPOPPTR (PL_savestack[--PL_savestack_ix].any_ptr) | |
70 | #define SSPOPDPTR (PL_savestack[--PL_savestack_ix].any_dptr) | |
c76ac1ee | 71 | #define SSPOPDXPTR (PL_savestack[--PL_savestack_ix].any_dxptr) |
8990e307 | 72 | |
954c1994 | 73 | /* |
ccfc67b7 JH |
74 | =head1 Callback Functions |
75 | ||
954c1994 GS |
76 | =for apidoc Ams||SAVETMPS |
77 | Opening bracket for temporaries on a callback. See C<FREETMPS> and | |
78 | L<perlcall>. | |
79 | ||
80 | =for apidoc Ams||FREETMPS | |
81 | Closing bracket for temporaries on a callback. See C<SAVETMPS> and | |
82 | L<perlcall>. | |
83 | ||
84 | =for apidoc Ams||ENTER | |
85 | Opening bracket on a callback. See C<LEAVE> and L<perlcall>. | |
86 | ||
87 | =for apidoc Ams||LEAVE | |
88 | Closing bracket on a callback. See C<ENTER> and L<perlcall>. | |
89 | ||
90 | =cut | |
91 | */ | |
92 | ||
3280af22 NIS |
93 | #define SAVETMPS save_int((int*)&PL_tmps_floor), PL_tmps_floor = PL_tmps_ix |
94 | #define FREETMPS if (PL_tmps_ix > PL_tmps_floor) free_tmps() | |
a0d0e21e | 95 | |
f46d017c GS |
96 | #ifdef DEBUGGING |
97 | #define ENTER \ | |
98 | STMT_START { \ | |
99 | push_scope(); \ | |
b4ab917c | 100 | DEBUG_SCOPE("ENTER") \ |
f46d017c GS |
101 | } STMT_END |
102 | #define LEAVE \ | |
103 | STMT_START { \ | |
b4ab917c | 104 | DEBUG_SCOPE("LEAVE") \ |
f46d017c GS |
105 | pop_scope(); \ |
106 | } STMT_END | |
107 | #else | |
a0d0e21e LW |
108 | #define ENTER push_scope() |
109 | #define LEAVE pop_scope() | |
f46d017c | 110 | #endif |
3280af22 | 111 | #define LEAVE_SCOPE(old) if (PL_savestack_ix > old) leave_scope(old) |
a0d0e21e | 112 | |
55497cff | 113 | /* |
b9d12d37 | 114 | * Not using SOFT_CAST on SAVESPTR, SAVEGENERICSV and SAVEFREESV |
55497cff | 115 | * because these are used for several kinds of pointer values |
116 | */ | |
e8347627 | 117 | #define SAVEI8(i) save_I8(SOFT_CAST(I8*)&(i)) |
4fdae800 | 118 | #define SAVEI16(i) save_I16(SOFT_CAST(I16*)&(i)) |
119 | #define SAVEI32(i) save_I32(SOFT_CAST(I32*)&(i)) | |
120 | #define SAVEINT(i) save_int(SOFT_CAST(int*)&(i)) | |
121 | #define SAVEIV(i) save_iv(SOFT_CAST(IV*)&(i)) | |
122 | #define SAVELONG(l) save_long(SOFT_CAST(long*)&(l)) | |
9febdf04 | 123 | #define SAVEBOOL(b) save_bool(SOFT_CAST(bool*)&(b)) |
55497cff | 124 | #define SAVESPTR(s) save_sptr((SV**)&(s)) |
125 | #define SAVEPPTR(s) save_pptr(SOFT_CAST(char**)&(s)) | |
57b2e452 | 126 | #define SAVEVPTR(s) save_vptr((void*)&(s)) |
c3564e5c | 127 | #define SAVEPADSV(s) save_padsv(s) |
55497cff | 128 | #define SAVEFREESV(s) save_freesv((SV*)(s)) |
26d9b02f | 129 | #define SAVEMORTALIZESV(s) save_mortalizesv((SV*)(s)) |
55497cff | 130 | #define SAVEFREEOP(o) save_freeop(SOFT_CAST(OP*)(o)) |
131 | #define SAVEFREEPV(p) save_freepv(SOFT_CAST(char*)(p)) | |
132 | #define SAVECLEARSV(sv) save_clearsv(SOFT_CAST(SV**)&(sv)) | |
b9d12d37 | 133 | #define SAVEGENERICSV(s) save_generic_svref((SV**)&(s)) |
f4dd75d9 | 134 | #define SAVEGENERICPV(s) save_generic_pvref((char**)&(s)) |
05ec9bb3 | 135 | #define SAVESHAREDPV(s) save_shared_pvref((char**)&(s)) |
14f338dc | 136 | #define SAVESETSVFLAGS(sv,mask,val) save_set_svflags(sv,mask,val) |
55497cff | 137 | #define SAVEDELETE(h,k,l) \ |
138 | save_delete(SOFT_CAST(HV*)(h), SOFT_CAST(char*)(k), (I32)(l)) | |
139 | #define SAVEDESTRUCTOR(f,p) \ | |
c76ac1ee GS |
140 | save_destructor((DESTRUCTORFUNC_NOCONTEXT_t)(f), SOFT_CAST(void*)(p)) |
141 | ||
142 | #define SAVEDESTRUCTOR_X(f,p) \ | |
143 | save_destructor_x((DESTRUCTORFUNC_t)(f), SOFT_CAST(void*)(p)) | |
25eaa213 GS |
144 | |
145 | #define SAVESTACK_POS() \ | |
146 | STMT_START { \ | |
147 | SSCHECK(2); \ | |
3280af22 | 148 | SSPUSHINT(PL_stack_sp - PL_stack_base); \ |
25eaa213 GS |
149 | SSPUSHINT(SAVEt_STACK_POS); \ |
150 | } STMT_END | |
151 | ||
462e5cf6 | 152 | #define SAVEOP() save_op() |
25eaa213 GS |
153 | |
154 | #define SAVEHINTS() \ | |
155 | STMT_START { \ | |
3280af22 | 156 | if (PL_hints & HINT_LOCALIZE_HH) \ |
25eaa213 GS |
157 | save_hints(); \ |
158 | else { \ | |
159 | SSCHECK(2); \ | |
3280af22 | 160 | SSPUSHINT(PL_hints); \ |
25eaa213 GS |
161 | SSPUSHINT(SAVEt_HINTS); \ |
162 | } \ | |
163 | } STMT_END | |
354992b1 GS |
164 | |
165 | #define SAVECOMPPAD() \ | |
166 | STMT_START { \ | |
f3548bdc DM |
167 | SSCHECK(2); \ |
168 | SSPUSHPTR((SV*)PL_comppad); \ | |
169 | SSPUSHINT(SAVEt_COMPPAD); \ | |
354992b1 | 170 | } STMT_END |
a9332b4a | 171 | |
57843af0 | 172 | #ifdef USE_ITHREADS |
f4dd75d9 | 173 | # define SAVECOPSTASH(c) SAVEPPTR(CopSTASHPV(c)) |
05ec9bb3 | 174 | # define SAVECOPSTASH_FREE(c) SAVESHAREDPV(CopSTASHPV(c)) |
f4dd75d9 | 175 | # define SAVECOPFILE(c) SAVEPPTR(CopFILE(c)) |
05ec9bb3 | 176 | # define SAVECOPFILE_FREE(c) SAVESHAREDPV(CopFILE(c)) |
57843af0 | 177 | #else |
f4dd75d9 GS |
178 | # define SAVECOPSTASH(c) SAVESPTR(CopSTASH(c)) |
179 | # define SAVECOPSTASH_FREE(c) SAVECOPSTASH(c) /* XXX not refcounted */ | |
180 | # define SAVECOPFILE(c) SAVESPTR(CopFILEGV(c)) | |
181 | # define SAVECOPFILE_FREE(c) SAVEGENERICSV(CopFILEGV(c)) | |
57843af0 GS |
182 | #endif |
183 | ||
dea28490 | 184 | #define SAVECOPLINE(c) SAVEI32(CopLINE(c)) |
57843af0 | 185 | |
455ece5e AD |
186 | /* SSNEW() temporarily allocates a specified number of bytes of data on the |
187 | * savestack. It returns an integer index into the savestack, because a | |
188 | * pointer would get broken if the savestack is moved on reallocation. | |
189 | * SSNEWa() works like SSNEW(), but also aligns the data to the specified | |
190 | * number of bytes. MEM_ALIGNBYTES is perhaps the most useful. The | |
191 | * alignment will be preserved therough savestack reallocation *only* if | |
192 | * realloc returns data aligned to a size divisible by `align'! | |
193 | * | |
194 | * SSPTR() converts the index returned by SSNEW/SSNEWa() into a pointer. | |
195 | */ | |
196 | ||
f2b2c1a7 | 197 | #define SSNEW(size) Perl_save_alloc(aTHX_ (size), 0) |
02db2b7b | 198 | #define SSNEWt(n,t) SSNEW((n)*sizeof(t)) |
f2b2c1a7 | 199 | #define SSNEWa(size,align) Perl_save_alloc(aTHX_ (size), \ |
455ece5e | 200 | (align - ((int)((caddr_t)&PL_savestack[PL_savestack_ix]) % align)) % align) |
02db2b7b | 201 | #define SSNEWat(n,t,align) SSNEWa((n)*sizeof(t), align) |
455ece5e | 202 | |
02db2b7b IZ |
203 | #define SSPTR(off,type) ((type) ((char*)PL_savestack + off)) |
204 | #define SSPTRt(off,type) ((type*) ((char*)PL_savestack + off)) | |
455ece5e | 205 | |
54310121 | 206 | /* A jmpenv packages the state required to perform a proper non-local jump. |
207 | * Note that there is a start_env initialized when perl starts, and top_env | |
208 | * points to this initially, so top_env should always be non-null. | |
209 | * | |
210 | * Existence of a non-null top_env->je_prev implies it is valid to call | |
6224f72b GS |
211 | * longjmp() at that runlevel (we make sure start_env.je_prev is always |
212 | * null to ensure this). | |
54310121 | 213 | * |
214 | * je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
215 | * establish a local jmpenv to handle exception traps. Care must be taken | |
216 | * to restore the previous value of je_mustcatch before exiting the | |
217 | * stack frame iff JMPENV_PUSH was not called in that stack frame. | |
6224f72b | 218 | * GSAR 97-03-27 |
54310121 | 219 | */ |
220 | ||
221 | struct jmpenv { | |
222 | struct jmpenv * je_prev; | |
312caa8e CS |
223 | Sigjmp_buf je_buf; /* only for use if !je_throw */ |
224 | int je_ret; /* last exception thrown */ | |
225 | bool je_mustcatch; /* need to call longjmp()? */ | |
14dd3ad8 | 226 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 227 | void (*je_throw)(int v); /* last for bincompat */ |
db36c5a1 | 228 | bool je_noset; /* no need for setjmp() */ |
14dd3ad8 | 229 | #endif |
1163b5c4 | 230 | }; |
1163b5c4 | 231 | |
6224f72b | 232 | typedef struct jmpenv JMPENV; |
1163b5c4 | 233 | |
14dd3ad8 GS |
234 | #ifdef OP_IN_REGISTER |
235 | #define OP_REG_TO_MEM PL_opsave = op | |
236 | #define OP_MEM_TO_REG op = PL_opsave | |
237 | #else | |
238 | #define OP_REG_TO_MEM NOOP | |
239 | #define OP_MEM_TO_REG NOOP | |
240 | #endif | |
312caa8e CS |
241 | |
242 | /* | |
243 | * How to build the first jmpenv. | |
244 | * | |
245 | * top_env needs to be non-zero. It points to an area | |
246 | * in which longjmp() stuff is stored, as C callstack | |
247 | * info there at least is thread specific this has to | |
248 | * be per-thread. Otherwise a 'die' in a thread gives | |
249 | * that thread the C stack of last thread to do an eval {}! | |
250 | */ | |
251 | ||
252 | #define JMPENV_BOOTSTRAP \ | |
253 | STMT_START { \ | |
14dd3ad8 | 254 | Zero(&PL_start_env, 1, JMPENV); \ |
312caa8e CS |
255 | PL_start_env.je_ret = -1; \ |
256 | PL_start_env.je_mustcatch = TRUE; \ | |
257 | PL_top_env = &PL_start_env; \ | |
258 | } STMT_END | |
259 | ||
14dd3ad8 | 260 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
462e5cf6 | 261 | |
312caa8e CS |
262 | /* |
263 | * These exception-handling macros are split up to | |
264 | * ease integration with C++ exceptions. | |
265 | * | |
266 | * To use C++ try+catch to catch Perl exceptions, an extension author | |
267 | * needs to first write an extern "C" function to throw an appropriate | |
268 | * exception object; typically it will be or contain an integer, | |
269 | * because Perl's internals use integers to track exception types: | |
270 | * extern "C" { static void thrower(int i) { throw i; } } | |
271 | * | |
272 | * Then (as shown below) the author needs to use, not the simple | |
273 | * JMPENV_PUSH, but several of its constitutent macros, to arrange for | |
274 | * the Perl internals to call thrower() rather than longjmp() to | |
275 | * report exceptions: | |
276 | * | |
277 | * dJMPENV; | |
278 | * JMPENV_PUSH_INIT(thrower); | |
279 | * try { | |
280 | * ... stuff that may throw exceptions ... | |
281 | * } | |
282 | * catch (int why) { // or whatever matches thrower() | |
283 | * JMPENV_POST_CATCH; | |
284 | * EXCEPT_SET(why); | |
285 | * switch (why) { | |
286 | * ... // handle various Perl exception codes | |
287 | * } | |
288 | * } | |
289 | * JMPENV_POP; // don't forget this! | |
290 | */ | |
291 | ||
14dd3ad8 GS |
292 | /* |
293 | * Function that catches/throws, and its callback for the | |
294 | * body of protected processing. | |
295 | */ | |
296 | typedef void *(CPERLscope(*protect_body_t)) (pTHX_ va_list); | |
297 | typedef void *(CPERLscope(*protect_proc_t)) (pTHX_ volatile JMPENV *pcur_env, | |
298 | int *, protect_body_t, ...); | |
299 | ||
db36c5a1 GS |
300 | #define dJMPENV JMPENV cur_env; \ |
301 | volatile JMPENV *pcur_env = ((cur_env.je_noset = 0),&cur_env) | |
312caa8e | 302 | |
db36c5a1 | 303 | #define JMPENV_PUSH_INIT_ENV(ce,THROWFUNC) \ |
6224f72b | 304 | STMT_START { \ |
db36c5a1 GS |
305 | (ce).je_throw = (THROWFUNC); \ |
306 | (ce).je_ret = -1; \ | |
307 | (ce).je_mustcatch = FALSE; \ | |
308 | (ce).je_prev = PL_top_env; \ | |
309 | PL_top_env = &(ce); \ | |
6224f72b | 310 | OP_REG_TO_MEM; \ |
312caa8e | 311 | } STMT_END |
1d651c14 | 312 | |
f2b2c1a7 | 313 | #define JMPENV_PUSH_INIT(THROWFUNC) JMPENV_PUSH_INIT_ENV(*(JMPENV*)pcur_env,THROWFUNC) |
1d651c14 | 314 | |
db36c5a1 | 315 | #define JMPENV_POST_CATCH_ENV(ce) \ |
312caa8e | 316 | STMT_START { \ |
6224f72b | 317 | OP_MEM_TO_REG; \ |
db36c5a1 | 318 | PL_top_env = &(ce); \ |
6224f72b | 319 | } STMT_END |
312caa8e | 320 | |
db36c5a1 | 321 | #define JMPENV_POST_CATCH JMPENV_POST_CATCH_ENV(*(JMPENV*)pcur_env) |
1d651c14 | 322 | |
db36c5a1 GS |
323 | #define JMPENV_PUSH_ENV(ce,v) \ |
324 | STMT_START { \ | |
325 | if (!(ce).je_noset) { \ | |
14dd3ad8 GS |
326 | DEBUG_l(Perl_deb(aTHX_ "Setting up jumplevel %p, was %p\n", \ |
327 | ce, PL_top_env)); \ | |
db36c5a1 | 328 | JMPENV_PUSH_INIT_ENV(ce,NULL); \ |
b03c0a3a | 329 | EXCEPT_SET_ENV(ce,PerlProc_setjmp((ce).je_buf, SCOPE_SAVES_SIGNAL_MASK));\ |
db36c5a1 GS |
330 | (ce).je_noset = 1; \ |
331 | } \ | |
332 | else \ | |
333 | EXCEPT_SET_ENV(ce,0); \ | |
334 | JMPENV_POST_CATCH_ENV(ce); \ | |
335 | (v) = EXCEPT_GET_ENV(ce); \ | |
312caa8e CS |
336 | } STMT_END |
337 | ||
f2b2c1a7 | 338 | #define JMPENV_PUSH(v) JMPENV_PUSH_ENV(*(JMPENV*)pcur_env,v) |
1d651c14 | 339 | |
db36c5a1 | 340 | #define JMPENV_POP_ENV(ce) \ |
14dd3ad8 GS |
341 | STMT_START { \ |
342 | if (PL_top_env == &(ce)) \ | |
343 | PL_top_env = (ce).je_prev; \ | |
344 | } STMT_END | |
312caa8e | 345 | |
f2b2c1a7 | 346 | #define JMPENV_POP JMPENV_POP_ENV(*(JMPENV*)pcur_env) |
1d651c14 | 347 | |
22921e25 CS |
348 | #define JMPENV_JUMP(v) \ |
349 | STMT_START { \ | |
462e5cf6 | 350 | OP_REG_TO_MEM; \ |
312caa8e CS |
351 | if (PL_top_env->je_prev) { \ |
352 | if (PL_top_env->je_throw) \ | |
353 | PL_top_env->je_throw(v); \ | |
354 | else \ | |
355 | PerlProc_longjmp(PL_top_env->je_buf, (v)); \ | |
356 | } \ | |
6224f72b | 357 | if ((v) == 2) \ |
312caa8e | 358 | PerlProc_exit(STATUS_NATIVE_EXPORT); \ |
bf49b057 | 359 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); \ |
312caa8e | 360 | PerlProc_exit(1); \ |
22921e25 | 361 | } STMT_END |
312caa8e | 362 | |
db36c5a1 GS |
363 | #define EXCEPT_GET_ENV(ce) ((ce).je_ret) |
364 | #define EXCEPT_GET EXCEPT_GET_ENV(*(JMPENV*)pcur_env) | |
365 | #define EXCEPT_SET_ENV(ce,v) ((ce).je_ret = (v)) | |
366 | #define EXCEPT_SET(v) EXCEPT_SET_ENV(*(JMPENV*)pcur_env,v) | |
312caa8e | 367 | |
14dd3ad8 GS |
368 | #else /* !PERL_FLEXIBLE_EXCEPTIONS */ |
369 | ||
370 | #define dJMPENV JMPENV cur_env | |
371 | ||
372 | #define JMPENV_PUSH(v) \ | |
373 | STMT_START { \ | |
374 | DEBUG_l(Perl_deb(aTHX_ "Setting up jumplevel %p, was %p\n", \ | |
375 | &cur_env, PL_top_env)); \ | |
376 | cur_env.je_prev = PL_top_env; \ | |
377 | OP_REG_TO_MEM; \ | |
b03c0a3a | 378 | cur_env.je_ret = PerlProc_setjmp(cur_env.je_buf, SCOPE_SAVES_SIGNAL_MASK); \ |
14dd3ad8 GS |
379 | OP_MEM_TO_REG; \ |
380 | PL_top_env = &cur_env; \ | |
381 | cur_env.je_mustcatch = FALSE; \ | |
382 | (v) = cur_env.je_ret; \ | |
383 | } STMT_END | |
384 | ||
385 | #define JMPENV_POP \ | |
386 | STMT_START { PL_top_env = cur_env.je_prev; } STMT_END | |
387 | ||
388 | #define JMPENV_JUMP(v) \ | |
389 | STMT_START { \ | |
390 | OP_REG_TO_MEM; \ | |
391 | if (PL_top_env->je_prev) \ | |
392 | PerlProc_longjmp(PL_top_env->je_buf, (v)); \ | |
393 | if ((v) == 2) \ | |
394 | PerlProc_exit(STATUS_NATIVE_EXPORT); \ | |
395 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); \ | |
396 | PerlProc_exit(1); \ | |
397 | } STMT_END | |
398 | ||
399 | #endif /* PERL_FLEXIBLE_EXCEPTIONS */ | |
400 | ||
db36c5a1 GS |
401 | #define CATCH_GET (PL_top_env->je_mustcatch) |
402 | #define CATCH_SET(v) (PL_top_env->je_mustcatch = (v)) |