172 lines
5.4 KiB
C
172 lines
5.4 KiB
C
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#define SAVEt_ITEM 0
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#define SAVEt_SV 1
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#define SAVEt_AV 2
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#define SAVEt_HV 3
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#define SAVEt_INT 4
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#define SAVEt_LONG 5
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#define SAVEt_I32 6
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#define SAVEt_IV 7
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#define SAVEt_SPTR 8
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#define SAVEt_APTR 9
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#define SAVEt_HPTR 10
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#define SAVEt_PPTR 11
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#define SAVEt_NSTAB 12
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#define SAVEt_SVREF 13
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#define SAVEt_GP 14
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#define SAVEt_FREESV 15
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#define SAVEt_FREEOP 16
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#define SAVEt_FREEPV 17
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#define SAVEt_CLEARSV 18
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#define SAVEt_DELETE 19
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#define SAVEt_DESTRUCTOR 20
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#define SAVEt_REGCONTEXT 21
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#define SAVEt_STACK_POS 22
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#define SAVEt_I16 23
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#define SAVEt_AELEM 24
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#define SAVEt_HELEM 25
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#define SAVEt_OP 26
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#define SAVEt_HINTS 27
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#define SSCHECK(need) if (PL_savestack_ix + need > PL_savestack_max) savestack_grow()
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#define SSPUSHINT(i) (PL_savestack[PL_savestack_ix++].any_i32 = (I32)(i))
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#define SSPUSHLONG(i) (PL_savestack[PL_savestack_ix++].any_long = (long)(i))
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#define SSPUSHIV(i) (PL_savestack[PL_savestack_ix++].any_iv = (IV)(i))
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#define SSPUSHPTR(p) (PL_savestack[PL_savestack_ix++].any_ptr = (void*)(p))
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#define SSPUSHDPTR(p) (PL_savestack[PL_savestack_ix++].any_dptr = (p))
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#define SSPOPINT (PL_savestack[--PL_savestack_ix].any_i32)
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#define SSPOPLONG (PL_savestack[--PL_savestack_ix].any_long)
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#define SSPOPIV (PL_savestack[--PL_savestack_ix].any_iv)
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#define SSPOPPTR (PL_savestack[--PL_savestack_ix].any_ptr)
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#define SSPOPDPTR (PL_savestack[--PL_savestack_ix].any_dptr)
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#define SAVETMPS save_int((int*)&PL_tmps_floor), PL_tmps_floor = PL_tmps_ix
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#define FREETMPS if (PL_tmps_ix > PL_tmps_floor) free_tmps()
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#ifdef DEBUGGING
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#define ENTER \
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STMT_START { \
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push_scope(); \
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DEBUG_l(WITH_THR(deb("ENTER scope %ld at %s:%d\n", \
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PL_scopestack_ix, __FILE__, __LINE__))); \
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} STMT_END
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#define LEAVE \
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STMT_START { \
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DEBUG_l(WITH_THR(deb("LEAVE scope %ld at %s:%d\n", \
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PL_scopestack_ix, __FILE__, __LINE__))); \
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pop_scope(); \
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} STMT_END
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#else
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#define ENTER push_scope()
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#define LEAVE pop_scope()
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#endif
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#define LEAVE_SCOPE(old) if (PL_savestack_ix > old) leave_scope(old)
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/*
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* Not using SOFT_CAST on SAVEFREESV and SAVEFREESV
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* because these are used for several kinds of pointer values
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*/
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#define SAVEI16(i) save_I16(SOFT_CAST(I16*)&(i))
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#define SAVEI32(i) save_I32(SOFT_CAST(I32*)&(i))
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#define SAVEINT(i) save_int(SOFT_CAST(int*)&(i))
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#define SAVEIV(i) save_iv(SOFT_CAST(IV*)&(i))
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#define SAVELONG(l) save_long(SOFT_CAST(long*)&(l))
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#define SAVESPTR(s) save_sptr((SV**)&(s))
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#define SAVEPPTR(s) save_pptr(SOFT_CAST(char**)&(s))
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#define SAVEFREESV(s) save_freesv((SV*)(s))
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#define SAVEFREEOP(o) save_freeop(SOFT_CAST(OP*)(o))
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#define SAVEFREEPV(p) save_freepv(SOFT_CAST(char*)(p))
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#define SAVECLEARSV(sv) save_clearsv(SOFT_CAST(SV**)&(sv))
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#define SAVEDELETE(h,k,l) \
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save_delete(SOFT_CAST(HV*)(h), SOFT_CAST(char*)(k), (I32)(l))
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#ifdef PERL_OBJECT
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#define CALLDESTRUCTOR this->*SSPOPDPTR
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#define SAVEDESTRUCTOR(f,p) \
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save_destructor((DESTRUCTORFUNC)(FUNC_NAME_TO_PTR(f)), \
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SOFT_CAST(void*)(p))
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#else
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#define CALLDESTRUCTOR *SSPOPDPTR
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#define SAVEDESTRUCTOR(f,p) \
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save_destructor(SOFT_CAST(void(*)_((void*)))(FUNC_NAME_TO_PTR(f)), \
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SOFT_CAST(void*)(p))
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#endif
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#define SAVESTACK_POS() \
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STMT_START { \
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SSCHECK(2); \
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SSPUSHINT(PL_stack_sp - PL_stack_base); \
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SSPUSHINT(SAVEt_STACK_POS); \
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} STMT_END
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#define SAVEOP() save_op()
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#define SAVEHINTS() \
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STMT_START { \
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if (PL_hints & HINT_LOCALIZE_HH) \
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save_hints(); \
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else { \
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SSCHECK(2); \
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SSPUSHINT(PL_hints); \
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SSPUSHINT(SAVEt_HINTS); \
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} \
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} STMT_END
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/* A jmpenv packages the state required to perform a proper non-local jump.
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* Note that there is a start_env initialized when perl starts, and top_env
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* points to this initially, so top_env should always be non-null.
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*
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* Existence of a non-null top_env->je_prev implies it is valid to call
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* longjmp() at that runlevel (we make sure start_env.je_prev is always
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* null to ensure this).
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*
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* je_mustcatch, when set at any runlevel to TRUE, means eval ops must
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* establish a local jmpenv to handle exception traps. Care must be taken
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* to restore the previous value of je_mustcatch before exiting the
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* stack frame iff JMPENV_PUSH was not called in that stack frame.
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* GSAR 97-03-27
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*/
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struct jmpenv {
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struct jmpenv * je_prev;
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Sigjmp_buf je_buf;
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int je_ret; /* return value of last setjmp() */
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bool je_mustcatch; /* longjmp()s must be caught locally */
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};
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typedef struct jmpenv JMPENV;
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#ifdef OP_IN_REGISTER
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#define OP_REG_TO_MEM PL_opsave = op
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#define OP_MEM_TO_REG op = PL_opsave
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#else
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#define OP_REG_TO_MEM NOOP
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#define OP_MEM_TO_REG NOOP
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#endif
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#define dJMPENV JMPENV cur_env
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#define JMPENV_PUSH(v) \
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STMT_START { \
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cur_env.je_prev = PL_top_env; \
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OP_REG_TO_MEM; \
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cur_env.je_ret = PerlProc_setjmp(cur_env.je_buf, 1); \
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OP_MEM_TO_REG; \
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PL_top_env = &cur_env; \
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cur_env.je_mustcatch = FALSE; \
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(v) = cur_env.je_ret; \
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} STMT_END
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#define JMPENV_POP \
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STMT_START { PL_top_env = cur_env.je_prev; } STMT_END
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#define JMPENV_JUMP(v) \
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STMT_START { \
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OP_REG_TO_MEM; \
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if (PL_top_env->je_prev) \
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PerlProc_longjmp(PL_top_env->je_buf, (v)); \
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if ((v) == 2) \
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PerlProc_exit(STATUS_NATIVE_EXPORT); \
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PerlIO_printf(PerlIO_stderr(), "panic: top_env\n"); \
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PerlProc_exit(1); \
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} STMT_END
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#define CATCH_GET (PL_top_env->je_mustcatch)
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#define CATCH_SET(v) (PL_top_env->je_mustcatch = (v))
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