#define SAVEt_ITEM 0 #define SAVEt_SV 1 #define SAVEt_AV 2 #define SAVEt_HV 3 #define SAVEt_INT 4 #define SAVEt_LONG 5 #define SAVEt_I32 6 #define SAVEt_IV 7 #define SAVEt_SPTR 8 #define SAVEt_APTR 9 #define SAVEt_HPTR 10 #define SAVEt_PPTR 11 #define SAVEt_NSTAB 12 #define SAVEt_SVREF 13 #define SAVEt_GP 14 #define SAVEt_FREESV 15 #define SAVEt_FREEOP 16 #define SAVEt_FREEPV 17 #define SAVEt_CLEARSV 18 #define SAVEt_DELETE 19 #define SAVEt_DESTRUCTOR 20 #define SAVEt_REGCONTEXT 21 #define SAVEt_STACK_POS 22 #define SAVEt_I16 23 #define SAVEt_AELEM 24 #define SAVEt_HELEM 25 #define SAVEt_OP 26 #define SAVEt_HINTS 27 #define SAVEt_ALLOC 28 #define SSCHECK(need) if (PL_savestack_ix + need > PL_savestack_max) savestack_grow() #define SSPUSHINT(i) (PL_savestack[PL_savestack_ix++].any_i32 = (I32)(i)) #define SSPUSHLONG(i) (PL_savestack[PL_savestack_ix++].any_long = (long)(i)) #define SSPUSHIV(i) (PL_savestack[PL_savestack_ix++].any_iv = (IV)(i)) #define SSPUSHPTR(p) (PL_savestack[PL_savestack_ix++].any_ptr = (void*)(p)) #define SSPUSHDPTR(p) (PL_savestack[PL_savestack_ix++].any_dptr = (p)) #define SSPOPINT (PL_savestack[--PL_savestack_ix].any_i32) #define SSPOPLONG (PL_savestack[--PL_savestack_ix].any_long) #define SSPOPIV (PL_savestack[--PL_savestack_ix].any_iv) #define SSPOPPTR (PL_savestack[--PL_savestack_ix].any_ptr) #define SSPOPDPTR (PL_savestack[--PL_savestack_ix].any_dptr) #define SAVETMPS save_int((int*)&PL_tmps_floor), PL_tmps_floor = PL_tmps_ix #define FREETMPS if (PL_tmps_ix > PL_tmps_floor) free_tmps() #ifdef DEBUGGING #define ENTER \ STMT_START { \ push_scope(); \ DEBUG_l(WITH_THR(deb("ENTER scope %ld at %s:%d\n", \ PL_scopestack_ix, __FILE__, __LINE__))); \ } STMT_END #define LEAVE \ STMT_START { \ DEBUG_l(WITH_THR(deb("LEAVE scope %ld at %s:%d\n", \ PL_scopestack_ix, __FILE__, __LINE__))); \ pop_scope(); \ } STMT_END #else #define ENTER push_scope() #define LEAVE pop_scope() #endif #define LEAVE_SCOPE(old) if (PL_savestack_ix > old) leave_scope(old) /* * Not using SOFT_CAST on SAVEFREESV and SAVEFREESV * because these are used for several kinds of pointer values */ #define SAVEI16(i) save_I16(SOFT_CAST(I16*)&(i)) #define SAVEI32(i) save_I32(SOFT_CAST(I32*)&(i)) #define SAVEINT(i) save_int(SOFT_CAST(int*)&(i)) #define SAVEIV(i) save_iv(SOFT_CAST(IV*)&(i)) #define SAVELONG(l) save_long(SOFT_CAST(long*)&(l)) #define SAVESPTR(s) save_sptr((SV**)&(s)) #define SAVEPPTR(s) save_pptr(SOFT_CAST(char**)&(s)) #define SAVEFREESV(s) save_freesv((SV*)(s)) #define SAVEFREEOP(o) save_freeop(SOFT_CAST(OP*)(o)) #define SAVEFREEPV(p) save_freepv(SOFT_CAST(char*)(p)) #define SAVECLEARSV(sv) save_clearsv(SOFT_CAST(SV**)&(sv)) #define SAVEDELETE(h,k,l) \ save_delete(SOFT_CAST(HV*)(h), SOFT_CAST(char*)(k), (I32)(l)) #ifdef PERL_OBJECT #define CALLDESTRUCTOR this->*SSPOPDPTR #define SAVEDESTRUCTOR(f,p) \ save_destructor((DESTRUCTORFUNC)(FUNC_NAME_TO_PTR(f)), \ SOFT_CAST(void*)(p)) #else #define CALLDESTRUCTOR *SSPOPDPTR #define SAVEDESTRUCTOR(f,p) \ save_destructor(SOFT_CAST(void(*)_((void*)))(FUNC_NAME_TO_PTR(f)), \ SOFT_CAST(void*)(p)) #endif #define SAVESTACK_POS() \ STMT_START { \ SSCHECK(2); \ SSPUSHINT(PL_stack_sp - PL_stack_base); \ SSPUSHINT(SAVEt_STACK_POS); \ } STMT_END #define SAVEOP() save_op() #define SAVEHINTS() \ STMT_START { \ if (PL_hints & HINT_LOCALIZE_HH) \ save_hints(); \ else { \ SSCHECK(2); \ SSPUSHINT(PL_hints); \ SSPUSHINT(SAVEt_HINTS); \ } \ } STMT_END /* SSNEW() temporarily allocates a specified number of bytes of data on the * savestack. It returns an integer index into the savestack, because a * pointer would get broken if the savestack is moved on reallocation. * SSNEWa() works like SSNEW(), but also aligns the data to the specified * number of bytes. MEM_ALIGNBYTES is perhaps the most useful. The * alignment will be preserved therough savestack reallocation *only* if * realloc returns data aligned to a size divisible by `align'! * * SSPTR() converts the index returned by SSNEW/SSNEWa() into a pointer. */ #define SSNEW(size) save_alloc(size, 0) #define SSNEWa(size,align) save_alloc(size, \ (align - ((int)((caddr_t)&PL_savestack[PL_savestack_ix]) % align)) % align) #define SSPTR(off,type) ((type) ((char*)PL_savestack + off)) /* 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; int je_ret; /* return value of last setjmp() */ bool je_mustcatch; /* longjmp()s must be caught locally */ }; 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 #define dJMPENV JMPENV cur_env #define JMPENV_PUSH(v) \ STMT_START { \ cur_env.je_prev = PL_top_env; \ OP_REG_TO_MEM; \ cur_env.je_ret = PerlProc_setjmp(cur_env.je_buf, 1); \ OP_MEM_TO_REG; \ PL_top_env = &cur_env; \ cur_env.je_mustcatch = FALSE; \ (v) = cur_env.je_ret; \ } STMT_END #define JMPENV_POP \ STMT_START { PL_top_env = cur_env.je_prev; } STMT_END #define JMPENV_JUMP(v) \ STMT_START { \ OP_REG_TO_MEM; \ if (PL_top_env->je_prev) \ PerlProc_longjmp(PL_top_env->je_buf, (v)); \ if ((v) == 2) \ PerlProc_exit(STATUS_NATIVE_EXPORT); \ PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); \ PerlProc_exit(1); \ } STMT_END #define CATCH_GET (PL_top_env->je_mustcatch) #define CATCH_SET(v) (PL_top_env->je_mustcatch = (v))