| 1 | #define SAVEt_ITEM 0 |
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| 2 | #define SAVEt_SV 1 |
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| 3 | #define SAVEt_AV 2 |
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| 4 | #define SAVEt_HV 3 |
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| 5 | #define SAVEt_INT 4 |
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| 6 | #define SAVEt_LONG 5 |
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| 7 | #define SAVEt_I32 6 |
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| 8 | #define SAVEt_IV 7 |
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| 9 | #define SAVEt_SPTR 8 |
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| 10 | #define SAVEt_APTR 9 |
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| 11 | #define SAVEt_HPTR 10 |
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| 12 | #define SAVEt_PPTR 11 |
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| 13 | #define SAVEt_NSTAB 12 |
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| 14 | #define SAVEt_SVREF 13 |
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| 15 | #define SAVEt_GP 14 |
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| 16 | #define SAVEt_FREESV 15 |
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| 17 | #define SAVEt_FREEOP 16 |
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| 18 | #define SAVEt_FREEPV 17 |
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| 19 | #define SAVEt_CLEARSV 18 |
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| 20 | #define SAVEt_DELETE 19 |
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| 21 | #define SAVEt_DESTRUCTOR 20 |
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| 22 | #define SAVEt_REGCONTEXT 21 |
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| 23 | #define SAVEt_STACK_POS 22 |
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| 24 | #define SAVEt_I16 23 |
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| 25 | |
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| 26 | #define SSCHECK(need) if (savestack_ix + need > savestack_max) savestack_grow() |
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| 27 | #define SSPUSHINT(i) (savestack[savestack_ix++].any_i32 = (I32)(i)) |
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| 28 | #define SSPUSHLONG(i) (savestack[savestack_ix++].any_long = (long)(i)) |
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| 29 | #define SSPUSHIV(i) (savestack[savestack_ix++].any_iv = (IV)(i)) |
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| 30 | #define SSPUSHPTR(p) (savestack[savestack_ix++].any_ptr = (void*)(p)) |
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| 31 | #define SSPUSHDPTR(p) (savestack[savestack_ix++].any_dptr = (p)) |
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| 32 | #define SSPOPINT (savestack[--savestack_ix].any_i32) |
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| 33 | #define SSPOPLONG (savestack[--savestack_ix].any_long) |
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| 34 | #define SSPOPIV (savestack[--savestack_ix].any_iv) |
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| 35 | #define SSPOPPTR (savestack[--savestack_ix].any_ptr) |
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| 36 | #define SSPOPDPTR (savestack[--savestack_ix].any_dptr) |
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| 37 | |
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| 38 | #define SAVETMPS save_int((int*)&tmps_floor), tmps_floor = tmps_ix |
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| 39 | #define FREETMPS if (tmps_ix > tmps_floor) free_tmps() |
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| 40 | #ifdef DEPRECATED |
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| 41 | #define FREE_TMPS() FREETMPS |
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| 42 | #endif |
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| 43 | |
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| 44 | #define ENTER push_scope() |
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| 45 | #define LEAVE pop_scope() |
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| 46 | #define LEAVE_SCOPE(old) if (savestack_ix > old) leave_scope(old) |
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| 47 | |
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| 48 | /* |
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| 49 | * Not using SOFT_CAST on SAVEFREESV and SAVEFREESV |
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| 50 | * because these are used for several kinds of pointer values |
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| 51 | */ |
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| 52 | #define SAVEI16(i) save_I16(SOFT_CAST(I16*)&(i)) |
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| 53 | #define SAVEI32(i) save_I32(SOFT_CAST(I32*)&(i)) |
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| 54 | #define SAVEINT(i) save_int(SOFT_CAST(int*)&(i)) |
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| 55 | #define SAVEIV(i) save_iv(SOFT_CAST(IV*)&(i)) |
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| 56 | #define SAVELONG(l) save_long(SOFT_CAST(long*)&(l)) |
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| 57 | #define SAVESPTR(s) save_sptr((SV**)&(s)) |
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| 58 | #define SAVEPPTR(s) save_pptr(SOFT_CAST(char**)&(s)) |
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| 59 | #define SAVEFREESV(s) save_freesv((SV*)(s)) |
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| 60 | #define SAVEFREEOP(o) save_freeop(SOFT_CAST(OP*)(o)) |
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| 61 | #define SAVEFREEPV(p) save_freepv(SOFT_CAST(char*)(p)) |
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| 62 | #define SAVECLEARSV(sv) save_clearsv(SOFT_CAST(SV**)&(sv)) |
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| 63 | #define SAVEDELETE(h,k,l) \ |
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| 64 | save_delete(SOFT_CAST(HV*)(h), SOFT_CAST(char*)(k), (I32)(l)) |
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| 65 | #define SAVEDESTRUCTOR(f,p) \ |
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| 66 | save_destructor(SOFT_CAST(void(*)_((void*)))(f),SOFT_CAST(void*)(p)) |
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| 67 | #define SAVESTACK_POS() STMT_START { \ |
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| 68 | SSCHECK(2); \ |
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| 69 | SSPUSHINT(stack_sp - stack_base); \ |
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| 70 | SSPUSHINT(SAVEt_STACK_POS); \ |
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| 71 | } STMT_END |
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| 72 | |
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| 73 | |
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| 74 | /* A jmpenv packages the state required to perform a proper non-local jump. |
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| 75 | * Note that there is a start_env initialized when perl starts, and top_env |
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| 76 | * points to this initially, so top_env should always be non-null. |
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| 77 | * |
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| 78 | * Existence of a non-null top_env->je_prev implies it is valid to call |
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| 79 | * longjmp() at that runlevel (we make sure start_env.je_prev is always |
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| 80 | * null to ensure this). |
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| 81 | * |
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| 82 | * je_mustcatch, when set at any runlevel to TRUE, means eval ops must |
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| 83 | * establish a local jmpenv to handle exception traps. Care must be taken |
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| 84 | * to restore the previous value of je_mustcatch before exiting the |
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| 85 | * stack frame iff JMPENV_PUSH was not called in that stack frame. |
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| 86 | * GSAR 97-03-27 |
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| 87 | */ |
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| 88 | |
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| 89 | struct jmpenv { |
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| 90 | struct jmpenv * je_prev; |
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| 91 | Sigjmp_buf je_buf; |
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| 92 | int je_ret; /* return value of last setjmp() */ |
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| 93 | bool je_mustcatch; /* longjmp()s must be caught locally */ |
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| 94 | }; |
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| 95 | |
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| 96 | typedef struct jmpenv JMPENV; |
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| 97 | |
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| 98 | #define dJMPENV JMPENV cur_env |
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| 99 | #define JMPENV_PUSH(v) \ |
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| 100 | STMT_START { \ |
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| 101 | cur_env.je_prev = top_env; \ |
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| 102 | cur_env.je_ret = Sigsetjmp(cur_env.je_buf, 1); \ |
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| 103 | top_env = &cur_env; \ |
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| 104 | cur_env.je_mustcatch = FALSE; \ |
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| 105 | (v) = cur_env.je_ret; \ |
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| 106 | } STMT_END |
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| 107 | #define JMPENV_POP \ |
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| 108 | STMT_START { top_env = cur_env.je_prev; } STMT_END |
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| 109 | #define JMPENV_JUMP(v) \ |
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| 110 | STMT_START { \ |
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| 111 | if (top_env->je_prev) \ |
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| 112 | Siglongjmp(top_env->je_buf, (v)); \ |
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| 113 | if ((v) == 2) \ |
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| 114 | exit(STATUS_NATIVE_EXPORT); \ |
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| 115 | PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); \ |
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| 116 | exit(1); \ |
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| 117 | } STMT_END |
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| 118 | |
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| 119 | #define CATCH_GET (top_env->je_mustcatch) |
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| 120 | #define CATCH_SET(v) (top_env->je_mustcatch = (v)) |
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| 121 | |
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