Commit | Line | Data |
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d6376244 JH |
1 | /* scope.h |
2 | * | |
e6906430 | 3 | * Copyright (C) 1993, 1994, 1996, 1997, 1998, 1999, |
31ab2e0d | 4 | * 2000, 2001, 2002, 2004, 2005 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 | |
f0e060fc | 25 | #define SAVEt_GP_OLD 14 /* Old style save, kept for bincompat. */ |
b9d12d37 GS |
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 |
4f4e7967 | 49 | #define SAVEt_BOOL 38 |
240fcc4a | 50 | #define SAVEt_SAVESWITCHSTACK 40 |
2cb86c03 | 51 | #define SAVEt_COP_ARYBASE 41 |
4c49a5e0 | 52 | #define SAVEt_RE_STATE 42 |
f0e060fc NC |
53 | #define SAVEt_GP_NEW 43 |
54 | ||
55 | #ifndef PERL_CORE | |
56 | /* There may just be something out there hand building save stacks. */ | |
57 | # define SAVEt_GP SAVEt_GP_OLD | |
58 | #endif | |
bf9e0bfe | 59 | #define SAVEt_STACK_CXPOS 44 |
79072805 | 60 | |
b03c0a3a | 61 | #ifndef SCOPE_SAVES_SIGNAL_MASK |
1b266415 | 62 | #define SCOPE_SAVES_SIGNAL_MASK 0 |
b03c0a3a NIS |
63 | #endif |
64 | ||
9f01e09a MHM |
65 | #define SSCHECK(need) if (PL_savestack_ix + (I32)(need) > PL_savestack_max) savestack_grow() |
66 | #define SSGROW(need) if (PL_savestack_ix + (I32)(need) > PL_savestack_max) savestack_grow_cnt(need) | |
3280af22 NIS |
67 | #define SSPUSHINT(i) (PL_savestack[PL_savestack_ix++].any_i32 = (I32)(i)) |
68 | #define SSPUSHLONG(i) (PL_savestack[PL_savestack_ix++].any_long = (long)(i)) | |
4f4e7967 | 69 | #define SSPUSHBOOL(p) (PL_savestack[PL_savestack_ix++].any_bool = (p)) |
3280af22 NIS |
70 | #define SSPUSHIV(i) (PL_savestack[PL_savestack_ix++].any_iv = (IV)(i)) |
71 | #define SSPUSHPTR(p) (PL_savestack[PL_savestack_ix++].any_ptr = (void*)(p)) | |
72 | #define SSPUSHDPTR(p) (PL_savestack[PL_savestack_ix++].any_dptr = (p)) | |
c76ac1ee | 73 | #define SSPUSHDXPTR(p) (PL_savestack[PL_savestack_ix++].any_dxptr = (p)) |
3280af22 NIS |
74 | #define SSPOPINT (PL_savestack[--PL_savestack_ix].any_i32) |
75 | #define SSPOPLONG (PL_savestack[--PL_savestack_ix].any_long) | |
4f4e7967 | 76 | #define SSPOPBOOL (PL_savestack[--PL_savestack_ix].any_bool) |
3280af22 NIS |
77 | #define SSPOPIV (PL_savestack[--PL_savestack_ix].any_iv) |
78 | #define SSPOPPTR (PL_savestack[--PL_savestack_ix].any_ptr) | |
79 | #define SSPOPDPTR (PL_savestack[--PL_savestack_ix].any_dptr) | |
c76ac1ee | 80 | #define SSPOPDXPTR (PL_savestack[--PL_savestack_ix].any_dxptr) |
8990e307 | 81 | |
954c1994 | 82 | /* |
ccfc67b7 JH |
83 | =head1 Callback Functions |
84 | ||
954c1994 GS |
85 | =for apidoc Ams||SAVETMPS |
86 | Opening bracket for temporaries on a callback. See C<FREETMPS> and | |
87 | L<perlcall>. | |
88 | ||
89 | =for apidoc Ams||FREETMPS | |
90 | Closing bracket for temporaries on a callback. See C<SAVETMPS> and | |
91 | L<perlcall>. | |
92 | ||
93 | =for apidoc Ams||ENTER | |
94 | Opening bracket on a callback. See C<LEAVE> and L<perlcall>. | |
95 | ||
96 | =for apidoc Ams||LEAVE | |
97 | Closing bracket on a callback. See C<ENTER> and L<perlcall>. | |
98 | ||
99 | =cut | |
100 | */ | |
101 | ||
3280af22 NIS |
102 | #define SAVETMPS save_int((int*)&PL_tmps_floor), PL_tmps_floor = PL_tmps_ix |
103 | #define FREETMPS if (PL_tmps_ix > PL_tmps_floor) free_tmps() | |
a0d0e21e | 104 | |
f46d017c GS |
105 | #ifdef DEBUGGING |
106 | #define ENTER \ | |
107 | STMT_START { \ | |
108 | push_scope(); \ | |
1aa6899f | 109 | DEBUG_SCOPE("ENTER") \ |
f46d017c GS |
110 | } STMT_END |
111 | #define LEAVE \ | |
112 | STMT_START { \ | |
1aa6899f | 113 | DEBUG_SCOPE("LEAVE") \ |
f46d017c GS |
114 | pop_scope(); \ |
115 | } STMT_END | |
116 | #else | |
a0d0e21e LW |
117 | #define ENTER push_scope() |
118 | #define LEAVE pop_scope() | |
f46d017c | 119 | #endif |
3280af22 | 120 | #define LEAVE_SCOPE(old) if (PL_savestack_ix > old) leave_scope(old) |
a0d0e21e | 121 | |
b21e3693 NC |
122 | #define SAVEI8(i) save_I8((I8*)&(i)) |
123 | #define SAVEI16(i) save_I16((I16*)&(i)) | |
124 | #define SAVEI32(i) save_I32((I32*)&(i)) | |
125 | #define SAVEINT(i) save_int((int*)&(i)) | |
126 | #define SAVEIV(i) save_iv((IV*)&(i)) | |
127 | #define SAVELONG(l) save_long((long*)&(l)) | |
128 | #define SAVEBOOL(b) save_bool((bool*)&(b)) | |
55497cff | 129 | #define SAVESPTR(s) save_sptr((SV**)&(s)) |
b21e3693 | 130 | #define SAVEPPTR(s) save_pptr((char**)&(s)) |
57b2e452 | 131 | #define SAVEVPTR(s) save_vptr((void*)&(s)) |
c3564e5c | 132 | #define SAVEPADSV(s) save_padsv(s) |
55497cff | 133 | #define SAVEFREESV(s) save_freesv((SV*)(s)) |
26d9b02f | 134 | #define SAVEMORTALIZESV(s) save_mortalizesv((SV*)(s)) |
b21e3693 NC |
135 | #define SAVEFREEOP(o) save_freeop((OP*)(o)) |
136 | #define SAVEFREEPV(p) save_freepv((char*)(p)) | |
137 | #define SAVECLEARSV(sv) save_clearsv((SV**)&(sv)) | |
b9d12d37 | 138 | #define SAVEGENERICSV(s) save_generic_svref((SV**)&(s)) |
f4dd75d9 | 139 | #define SAVEGENERICPV(s) save_generic_pvref((char**)&(s)) |
05ec9bb3 | 140 | #define SAVESHAREDPV(s) save_shared_pvref((char**)&(s)) |
55497cff | 141 | #define SAVEDELETE(h,k,l) \ |
b21e3693 | 142 | save_delete((HV*)(h), (char*)(k), (I32)(l)) |
55497cff | 143 | #define SAVEDESTRUCTOR(f,p) \ |
b21e3693 | 144 | save_destructor((DESTRUCTORFUNC_NOCONTEXT_t)(f), (void*)(p)) |
c76ac1ee GS |
145 | |
146 | #define SAVEDESTRUCTOR_X(f,p) \ | |
b21e3693 | 147 | save_destructor_x((DESTRUCTORFUNC_t)(f), (void*)(p)) |
25eaa213 GS |
148 | |
149 | #define SAVESTACK_POS() \ | |
150 | STMT_START { \ | |
151 | SSCHECK(2); \ | |
3280af22 | 152 | SSPUSHINT(PL_stack_sp - PL_stack_base); \ |
25eaa213 GS |
153 | SSPUSHINT(SAVEt_STACK_POS); \ |
154 | } STMT_END | |
155 | ||
462e5cf6 | 156 | #define SAVEOP() save_op() |
25eaa213 GS |
157 | |
158 | #define SAVEHINTS() \ | |
1f26b251 NC |
159 | STMT_START { \ |
160 | SSCHECK(3); \ | |
161 | if (PL_hints & HINT_LOCALIZE_HH) { \ | |
162 | SSPUSHPTR(GvHV(PL_hintgv)); \ | |
163 | GvHV(PL_hintgv) = newHVhv(GvHV(PL_hintgv)); \ | |
164 | } \ | |
165 | SSPUSHINT(PL_hints); \ | |
166 | SSPUSHINT(SAVEt_HINTS); \ | |
25eaa213 | 167 | } STMT_END |
354992b1 GS |
168 | |
169 | #define SAVECOMPPAD() \ | |
170 | STMT_START { \ | |
d7afa7f5 JH |
171 | SSCHECK(2); \ |
172 | SSPUSHPTR((SV*)PL_comppad); \ | |
173 | SSPUSHINT(SAVEt_COMPPAD); \ | |
354992b1 | 174 | } STMT_END |
a9332b4a | 175 | |
240fcc4a JC |
176 | #define SAVESWITCHSTACK(f,t) \ |
177 | STMT_START { \ | |
178 | SSCHECK(3); \ | |
179 | SSPUSHPTR((SV*)(f)); \ | |
180 | SSPUSHPTR((SV*)(t)); \ | |
181 | SSPUSHINT(SAVEt_SAVESWITCHSTACK); \ | |
182 | SWITCHSTACK((f),(t)); \ | |
183 | PL_curstackinfo->si_stack = (t); \ | |
184 | } STMT_END | |
185 | ||
2cb86c03 NC |
186 | #define SAVECOPARYBASE(c) \ |
187 | STMT_START { \ | |
188 | SSCHECK(3); \ | |
189 | SSPUSHINT(CopARYBASE_get(c)); \ | |
190 | SSPUSHPTR(c); \ | |
191 | SSPUSHINT(SAVEt_COP_ARYBASE); \ | |
192 | } STMT_END | |
193 | ||
194 | ||
bf9e0bfe NC |
195 | #define SAVESTACK_CXPOS() \ |
196 | STMT_START { \ | |
197 | SSCHECK(3); \ | |
198 | SSPUSHINT(cxstack[cxstack_ix].blk_oldsp); \ | |
199 | SSPUSHINT(cxstack_ix); \ | |
200 | SSPUSHINT(SAVEt_STACK_CXPOS); \ | |
201 | } STMT_END | |
202 | ||
57843af0 | 203 | #ifdef USE_ITHREADS |
f4dd75d9 | 204 | # define SAVECOPSTASH(c) SAVEPPTR(CopSTASHPV(c)) |
05ec9bb3 | 205 | # define SAVECOPSTASH_FREE(c) SAVESHAREDPV(CopSTASHPV(c)) |
f4dd75d9 | 206 | # define SAVECOPFILE(c) SAVEPPTR(CopFILE(c)) |
05ec9bb3 | 207 | # define SAVECOPFILE_FREE(c) SAVESHAREDPV(CopFILE(c)) |
57843af0 | 208 | #else |
f4dd75d9 GS |
209 | # define SAVECOPSTASH(c) SAVESPTR(CopSTASH(c)) |
210 | # define SAVECOPSTASH_FREE(c) SAVECOPSTASH(c) /* XXX not refcounted */ | |
211 | # define SAVECOPFILE(c) SAVESPTR(CopFILEGV(c)) | |
212 | # define SAVECOPFILE_FREE(c) SAVEGENERICSV(CopFILEGV(c)) | |
57843af0 GS |
213 | #endif |
214 | ||
219ef941 | 215 | #define SAVECOPLINE(c) SAVEI32(CopLINE(c)) |
57843af0 | 216 | |
455ece5e AD |
217 | /* SSNEW() temporarily allocates a specified number of bytes of data on the |
218 | * savestack. It returns an integer index into the savestack, because a | |
219 | * pointer would get broken if the savestack is moved on reallocation. | |
220 | * SSNEWa() works like SSNEW(), but also aligns the data to the specified | |
221 | * number of bytes. MEM_ALIGNBYTES is perhaps the most useful. The | |
222 | * alignment will be preserved therough savestack reallocation *only* if | |
5332c881 | 223 | * realloc returns data aligned to a size divisible by "align"! |
455ece5e AD |
224 | * |
225 | * SSPTR() converts the index returned by SSNEW/SSNEWa() into a pointer. | |
226 | */ | |
227 | ||
f2b2c1a7 | 228 | #define SSNEW(size) Perl_save_alloc(aTHX_ (size), 0) |
02db2b7b | 229 | #define SSNEWt(n,t) SSNEW((n)*sizeof(t)) |
f2b2c1a7 | 230 | #define SSNEWa(size,align) Perl_save_alloc(aTHX_ (size), \ |
455ece5e | 231 | (align - ((int)((caddr_t)&PL_savestack[PL_savestack_ix]) % align)) % align) |
02db2b7b | 232 | #define SSNEWat(n,t,align) SSNEWa((n)*sizeof(t), align) |
455ece5e | 233 | |
02db2b7b IZ |
234 | #define SSPTR(off,type) ((type) ((char*)PL_savestack + off)) |
235 | #define SSPTRt(off,type) ((type*) ((char*)PL_savestack + off)) | |
455ece5e | 236 | |
54310121 | 237 | /* A jmpenv packages the state required to perform a proper non-local jump. |
238 | * Note that there is a start_env initialized when perl starts, and top_env | |
239 | * points to this initially, so top_env should always be non-null. | |
240 | * | |
241 | * Existence of a non-null top_env->je_prev implies it is valid to call | |
6224f72b GS |
242 | * longjmp() at that runlevel (we make sure start_env.je_prev is always |
243 | * null to ensure this). | |
54310121 | 244 | * |
245 | * je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
246 | * establish a local jmpenv to handle exception traps. Care must be taken | |
247 | * to restore the previous value of je_mustcatch before exiting the | |
248 | * stack frame iff JMPENV_PUSH was not called in that stack frame. | |
6224f72b | 249 | * GSAR 97-03-27 |
54310121 | 250 | */ |
251 | ||
252 | struct jmpenv { | |
253 | struct jmpenv * je_prev; | |
312caa8e CS |
254 | Sigjmp_buf je_buf; /* only for use if !je_throw */ |
255 | int je_ret; /* last exception thrown */ | |
256 | bool je_mustcatch; /* need to call longjmp()? */ | |
14dd3ad8 | 257 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 258 | void (*je_throw)(int v); /* last for bincompat */ |
db36c5a1 | 259 | bool je_noset; /* no need for setjmp() */ |
14dd3ad8 | 260 | #endif |
1163b5c4 | 261 | }; |
1163b5c4 | 262 | |
6224f72b | 263 | typedef struct jmpenv JMPENV; |
1163b5c4 | 264 | |
14dd3ad8 GS |
265 | #ifdef OP_IN_REGISTER |
266 | #define OP_REG_TO_MEM PL_opsave = op | |
267 | #define OP_MEM_TO_REG op = PL_opsave | |
268 | #else | |
269 | #define OP_REG_TO_MEM NOOP | |
270 | #define OP_MEM_TO_REG NOOP | |
271 | #endif | |
312caa8e CS |
272 | |
273 | /* | |
274 | * How to build the first jmpenv. | |
275 | * | |
276 | * top_env needs to be non-zero. It points to an area | |
277 | * in which longjmp() stuff is stored, as C callstack | |
278 | * info there at least is thread specific this has to | |
279 | * be per-thread. Otherwise a 'die' in a thread gives | |
280 | * that thread the C stack of last thread to do an eval {}! | |
281 | */ | |
282 | ||
283 | #define JMPENV_BOOTSTRAP \ | |
284 | STMT_START { \ | |
14dd3ad8 | 285 | Zero(&PL_start_env, 1, JMPENV); \ |
312caa8e CS |
286 | PL_start_env.je_ret = -1; \ |
287 | PL_start_env.je_mustcatch = TRUE; \ | |
288 | PL_top_env = &PL_start_env; \ | |
289 | } STMT_END | |
290 | ||
14dd3ad8 | 291 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
462e5cf6 | 292 | |
312caa8e CS |
293 | /* |
294 | * These exception-handling macros are split up to | |
295 | * ease integration with C++ exceptions. | |
296 | * | |
297 | * To use C++ try+catch to catch Perl exceptions, an extension author | |
298 | * needs to first write an extern "C" function to throw an appropriate | |
299 | * exception object; typically it will be or contain an integer, | |
300 | * because Perl's internals use integers to track exception types: | |
301 | * extern "C" { static void thrower(int i) { throw i; } } | |
302 | * | |
303 | * Then (as shown below) the author needs to use, not the simple | |
304 | * JMPENV_PUSH, but several of its constitutent macros, to arrange for | |
305 | * the Perl internals to call thrower() rather than longjmp() to | |
306 | * report exceptions: | |
307 | * | |
308 | * dJMPENV; | |
309 | * JMPENV_PUSH_INIT(thrower); | |
310 | * try { | |
311 | * ... stuff that may throw exceptions ... | |
312 | * } | |
313 | * catch (int why) { // or whatever matches thrower() | |
314 | * JMPENV_POST_CATCH; | |
315 | * EXCEPT_SET(why); | |
316 | * switch (why) { | |
317 | * ... // handle various Perl exception codes | |
318 | * } | |
319 | * } | |
320 | * JMPENV_POP; // don't forget this! | |
321 | */ | |
322 | ||
14dd3ad8 GS |
323 | /* |
324 | * Function that catches/throws, and its callback for the | |
325 | * body of protected processing. | |
326 | */ | |
327 | typedef void *(CPERLscope(*protect_body_t)) (pTHX_ va_list); | |
328 | typedef void *(CPERLscope(*protect_proc_t)) (pTHX_ volatile JMPENV *pcur_env, | |
329 | int *, protect_body_t, ...); | |
330 | ||
db36c5a1 GS |
331 | #define dJMPENV JMPENV cur_env; \ |
332 | volatile JMPENV *pcur_env = ((cur_env.je_noset = 0),&cur_env) | |
312caa8e | 333 | |
db36c5a1 | 334 | #define JMPENV_PUSH_INIT_ENV(ce,THROWFUNC) \ |
6224f72b | 335 | STMT_START { \ |
db36c5a1 GS |
336 | (ce).je_throw = (THROWFUNC); \ |
337 | (ce).je_ret = -1; \ | |
338 | (ce).je_mustcatch = FALSE; \ | |
339 | (ce).je_prev = PL_top_env; \ | |
340 | PL_top_env = &(ce); \ | |
6224f72b | 341 | OP_REG_TO_MEM; \ |
312caa8e | 342 | } STMT_END |
1d651c14 | 343 | |
f2b2c1a7 | 344 | #define JMPENV_PUSH_INIT(THROWFUNC) JMPENV_PUSH_INIT_ENV(*(JMPENV*)pcur_env,THROWFUNC) |
1d651c14 | 345 | |
db36c5a1 | 346 | #define JMPENV_POST_CATCH_ENV(ce) \ |
312caa8e | 347 | STMT_START { \ |
6224f72b | 348 | OP_MEM_TO_REG; \ |
db36c5a1 | 349 | PL_top_env = &(ce); \ |
6224f72b | 350 | } STMT_END |
312caa8e | 351 | |
db36c5a1 | 352 | #define JMPENV_POST_CATCH JMPENV_POST_CATCH_ENV(*(JMPENV*)pcur_env) |
1d651c14 | 353 | |
db36c5a1 GS |
354 | #define JMPENV_PUSH_ENV(ce,v) \ |
355 | STMT_START { \ | |
356 | if (!(ce).je_noset) { \ | |
14dd3ad8 | 357 | DEBUG_l(Perl_deb(aTHX_ "Setting up jumplevel %p, was %p\n", \ |
f2139bd3 | 358 | (void*)ce, (void*)PL_top_env)); \ |
db36c5a1 | 359 | JMPENV_PUSH_INIT_ENV(ce,NULL); \ |
b03c0a3a | 360 | EXCEPT_SET_ENV(ce,PerlProc_setjmp((ce).je_buf, SCOPE_SAVES_SIGNAL_MASK));\ |
db36c5a1 GS |
361 | (ce).je_noset = 1; \ |
362 | } \ | |
363 | else \ | |
364 | EXCEPT_SET_ENV(ce,0); \ | |
365 | JMPENV_POST_CATCH_ENV(ce); \ | |
366 | (v) = EXCEPT_GET_ENV(ce); \ | |
312caa8e CS |
367 | } STMT_END |
368 | ||
f2b2c1a7 | 369 | #define JMPENV_PUSH(v) JMPENV_PUSH_ENV(*(JMPENV*)pcur_env,v) |
1d651c14 | 370 | |
db36c5a1 | 371 | #define JMPENV_POP_ENV(ce) \ |
14dd3ad8 GS |
372 | STMT_START { \ |
373 | if (PL_top_env == &(ce)) \ | |
374 | PL_top_env = (ce).je_prev; \ | |
375 | } STMT_END | |
312caa8e | 376 | |
f2b2c1a7 | 377 | #define JMPENV_POP JMPENV_POP_ENV(*(JMPENV*)pcur_env) |
1d651c14 | 378 | |
22921e25 CS |
379 | #define JMPENV_JUMP(v) \ |
380 | STMT_START { \ | |
462e5cf6 | 381 | OP_REG_TO_MEM; \ |
312caa8e CS |
382 | if (PL_top_env->je_prev) { \ |
383 | if (PL_top_env->je_throw) \ | |
384 | PL_top_env->je_throw(v); \ | |
385 | else \ | |
386 | PerlProc_longjmp(PL_top_env->je_buf, (v)); \ | |
387 | } \ | |
6224f72b | 388 | if ((v) == 2) \ |
b14528dd | 389 | PerlProc_exit(STATUS_EXIT); \ |
bf49b057 | 390 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); \ |
312caa8e | 391 | PerlProc_exit(1); \ |
22921e25 | 392 | } STMT_END |
312caa8e | 393 | |
db36c5a1 GS |
394 | #define EXCEPT_GET_ENV(ce) ((ce).je_ret) |
395 | #define EXCEPT_GET EXCEPT_GET_ENV(*(JMPENV*)pcur_env) | |
396 | #define EXCEPT_SET_ENV(ce,v) ((ce).je_ret = (v)) | |
397 | #define EXCEPT_SET(v) EXCEPT_SET_ENV(*(JMPENV*)pcur_env,v) | |
312caa8e | 398 | |
14dd3ad8 GS |
399 | #else /* !PERL_FLEXIBLE_EXCEPTIONS */ |
400 | ||
401 | #define dJMPENV JMPENV cur_env | |
402 | ||
403 | #define JMPENV_PUSH(v) \ | |
404 | STMT_START { \ | |
405 | DEBUG_l(Perl_deb(aTHX_ "Setting up jumplevel %p, was %p\n", \ | |
f2139bd3 | 406 | (void*)&cur_env, (void*)PL_top_env)); \ |
14dd3ad8 GS |
407 | cur_env.je_prev = PL_top_env; \ |
408 | OP_REG_TO_MEM; \ | |
b03c0a3a | 409 | cur_env.je_ret = PerlProc_setjmp(cur_env.je_buf, SCOPE_SAVES_SIGNAL_MASK); \ |
14dd3ad8 GS |
410 | OP_MEM_TO_REG; \ |
411 | PL_top_env = &cur_env; \ | |
412 | cur_env.je_mustcatch = FALSE; \ | |
413 | (v) = cur_env.je_ret; \ | |
414 | } STMT_END | |
415 | ||
416 | #define JMPENV_POP \ | |
417 | STMT_START { PL_top_env = cur_env.je_prev; } STMT_END | |
418 | ||
419 | #define JMPENV_JUMP(v) \ | |
420 | STMT_START { \ | |
421 | OP_REG_TO_MEM; \ | |
422 | if (PL_top_env->je_prev) \ | |
423 | PerlProc_longjmp(PL_top_env->je_buf, (v)); \ | |
424 | if ((v) == 2) \ | |
b14528dd | 425 | PerlProc_exit(STATUS_EXIT); \ |
14dd3ad8 GS |
426 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); \ |
427 | PerlProc_exit(1); \ | |
428 | } STMT_END | |
429 | ||
430 | #endif /* PERL_FLEXIBLE_EXCEPTIONS */ | |
431 | ||
db36c5a1 GS |
432 | #define CATCH_GET (PL_top_env->je_mustcatch) |
433 | #define CATCH_SET(v) (PL_top_env->je_mustcatch = (v)) |