remove deprecated PERL_OBJECT cruft, it has long since stopped
[p5sagit/p5-mst-13.2.git] / ext / ByteLoader / bytecode.h
index abab1e4..7ce3e07 100644 (file)
@@ -5,33 +5,51 @@ typedef char *op_tr_array;
 typedef int comment_t;
 typedef SV *svindex;
 typedef OP *opindex;
+typedef char *pvindex;
 typedef IV IV64;
 
 #define BGET_FREAD(argp, len, nelem)   \
-        bs.fread((char*)(argp),(len),(nelem),bs.data)
-#define BGET_FGETC() bs.fgetc(bs.data)
+        bl_read(bstate->bs_fdata,(char*)(argp),(len),(nelem))
+#define BGET_FGETC() bl_getc(bstate->bs_fdata)
 
 #define BGET_U32(arg)  \
-       BGET_FREAD(&arg, sizeof(U32), 1); arg = PerlSock_ntohl((U32)arg)
+       BGET_FREAD(&arg, sizeof(U32), 1)
 #define BGET_I32(arg)  \
-       BGET_FREAD(&arg, sizeof(I32), 1); arg = (I32)PerlSock_ntohl((U32)arg)
+       BGET_FREAD(&arg, sizeof(I32), 1)
 #define BGET_U16(arg)  \
-       BGET_FREAD(&arg, sizeof(U16), 1); arg = PerlSock_ntohs((U16)arg)
+       BGET_FREAD(&arg, sizeof(U16), 1)
 #define BGET_U8(arg)   arg = BGET_FGETC()
 
-#define BGET_PV(arg)   STMT_START {    \
-       BGET_U32(arg);                  \
-       if (arg)                        \
-           bs.freadpv(arg, bs.data, &bytecode_pv);     \
-       else {                          \
-           bytecode_pv.xpv_pv = 0;             \
-           bytecode_pv.xpv_len = 0;            \
-           bytecode_pv.xpv_cur = 0;            \
-       }                               \
+#define BGET_PV(arg)   STMT_START {                                    \
+       BGET_U32(arg);                                                  \
+       if (arg) {                                                      \
+           New(666, bstate->bs_pv.xpv_pv, arg, char);                  \
+           bl_read(bstate->bs_fdata, (void*)bstate->bs_pv.xpv_pv, arg, 1);     \
+           bstate->bs_pv.xpv_len = arg;                                \
+           bstate->bs_pv.xpv_cur = arg - 1;                            \
+       } else {                                                        \
+           bstate->bs_pv.xpv_pv = 0;                                   \
+           bstate->bs_pv.xpv_len = 0;                                  \
+           bstate->bs_pv.xpv_cur = 0;                                  \
+       }                                                               \
     } STMT_END
 
-#define BGET_comment_t(arg) \
+#ifdef BYTELOADER_LOG_COMMENTS
+#  define BGET_comment_t(arg) \
+    STMT_START {                                                       \
+       char buf[1024];                                                 \
+       int i = 0;                                                      \
+       do {                                                            \
+           arg = BGET_FGETC();                                         \
+           buf[i++] = (char)arg;                                       \
+       } while (arg != '\n' && arg != EOF);                            \
+       buf[i] = '\0';                                                  \
+       PerlIO_printf(PerlIO_stderr(), "%s", buf);                      \
+    } STMT_END
+#else
+#  define BGET_comment_t(arg) \
        do { arg = BGET_FGETC(); } while (arg != '\n' && arg != EOF)
+#endif
 
 /*
  * In the following, sizeof(IV)*4 is just a way of encoding 32 on 64-bit-IV
@@ -43,48 +61,52 @@ typedef IV IV64;
        BGET_U32(hi);                                   \
        BGET_U32(lo);                                   \
        if (sizeof(IV) == 8)                            \
-           arg = (IV) (hi << (sizeof(IV)*4) | lo);     \
+           arg = ((IV)hi << (sizeof(IV)*4) | (IV)lo);  \
        else if (((I32)hi == -1 && (I32)lo < 0)         \
                 || ((I32)hi == 0 && (I32)lo >= 0)) {   \
            arg = (I32)lo;                              \
        }                                               \
        else {                                          \
-           bytecode_iv_overflows++;                            \
+           bstate->bs_iv_overflows++;                  \
            arg = 0;                                    \
        }                                               \
     } STMT_END
 
-#define BGET_op_tr_array(arg) do {     \
-       unsigned short *ary;            \
-       int i;                          \
-       New(666, ary, 256, unsigned short); \
-       BGET_FREAD(ary, 256, 2);        \
-       for (i = 0; i < 256; i++)       \
-           ary[i] = PerlSock_ntohs(ary[i]);    \
-       arg = (char *) ary;             \
+#define BGET_op_tr_array(arg) do {                     \
+       unsigned short *ary;                            \
+       New(666, ary, 256, unsigned short);             \
+       BGET_FREAD(ary, sizeof(unsigned short), 256);   \
+       arg = (char *) ary;                             \
     } while (0)
 
-#define BGET_pvcontents(arg)   arg = bytecode_pv.xpv_pv
+#define BGET_pvcontents(arg)   arg = bstate->bs_pv.xpv_pv
 #define BGET_strconst(arg) STMT_START {        \
        for (arg = PL_tokenbuf; (*arg = BGET_FGETC()); arg++) /* nothing */; \
        arg = PL_tokenbuf;                      \
     } STMT_END
 
-#define BGET_double(arg) STMT_START {  \
+#define BGET_NV(arg) STMT_START {      \
        char *str;                      \
        BGET_strconst(str);             \
-       arg = atof(str);                \
+       arg = Atof(str);                \
     } STMT_END
 
 #define BGET_objindex(arg, type) STMT_START {  \
-       U32 ix;                                 \
        BGET_U32(ix);                           \
-       arg = (type)bytecode_obj_list[ix];              \
+       arg = (type)bstate->bs_obj_list[ix];    \
     } STMT_END
 #define BGET_svindex(arg) BGET_objindex(arg, svindex)
 #define BGET_opindex(arg) BGET_objindex(arg, opindex)
+#define BGET_pvindex(arg) STMT_START {                 \
+       BGET_objindex(arg, pvindex);                    \
+       arg = arg ? savepv(arg) : arg;                  \
+    } STMT_END
 
 #define BSET_ldspecsv(sv, arg) sv = specialsv_list[arg]
+#define BSET_stpv(pv, arg) STMT_START {                \
+       BSET_OBJ_STORE(pv, arg);                \
+       SAVEFREEPV(pv);                         \
+    } STMT_END
                                    
 #define BSET_sv_refcnt_add(svrefcnt, arg)      svrefcnt += arg
 #define BSET_gp_refcnt_add(gprefcnt, arg)      gprefcnt += arg
@@ -96,31 +118,41 @@ typedef IV IV64;
 #define BSET_gv_fetchpv(sv, arg)       sv = (SV*)gv_fetchpv(arg, TRUE, SVt_PV)
 #define BSET_gv_stashpv(sv, arg)       sv = (SV*)gv_stashpv(arg, TRUE)
 #define BSET_sv_magic(sv, arg)         sv_magic(sv, Nullsv, arg, 0, 0)
-#define BSET_mg_pv(mg, arg)    mg->mg_ptr = arg; mg->mg_len = bytecode_pv.xpv_cur
+#define BSET_mg_pv(mg, arg)    mg->mg_ptr = arg; mg->mg_len = bstate->bs_pv.xpv_cur
 #define BSET_sv_upgrade(sv, arg)       (void)SvUPGRADE(sv, arg)
 #define BSET_xpv(sv)   do {    \
-       SvPV_set(sv, bytecode_pv.xpv_pv);       \
-       SvCUR_set(sv, bytecode_pv.xpv_cur);     \
-       SvLEN_set(sv, bytecode_pv.xpv_len);     \
+       SvPV_set(sv, bstate->bs_pv.xpv_pv);     \
+       SvCUR_set(sv, bstate->bs_pv.xpv_cur);   \
+       SvLEN_set(sv, bstate->bs_pv.xpv_len);   \
     } while (0)
 #define BSET_av_extend(sv, arg)        av_extend((AV*)sv, arg)
 
 #define BSET_av_push(sv, arg)  av_push((AV*)sv, arg)
 #define BSET_hv_store(sv, arg) \
-       hv_store((HV*)sv, bytecode_pv.xpv_pv, bytecode_pv.xpv_cur, arg, 0)
+       hv_store((HV*)sv, bstate->bs_pv.xpv_pv, bstate->bs_pv.xpv_cur, arg, 0)
 #define BSET_pv_free(pv)       Safefree(pv.xpv_pv)
 #define BSET_pregcomp(o, arg) \
-       ((PMOP*)o)->op_pmregexp = arg ? \
-               CALLREGCOMP(arg, arg + bytecode_pv.xpv_cur, ((PMOP*)o)) : 0
-#define BSET_newsv(sv, arg)    sv = NEWSV(666,0); SvUPGRADE(sv, arg)
-#define BSET_newop(o, arg)     o = (OP*)safemalloc(optype_size[arg])
+       (PM_SETRE(((PMOP*)o), (arg ? \
+               CALLREGCOMP(aTHX_ arg, arg + bstate->bs_pv.xpv_cur, ((PMOP*)o)) : 0)))
+#define BSET_newsv(sv, arg)                            \
+       STMT_START {                                    \
+           sv = (arg == SVt_PVAV ? (SV*)newAV() :      \
+                 arg == SVt_PVHV ? (SV*)newHV() :      \
+                 NEWSV(666,0));                        \
+           SvUPGRADE(sv, arg);                         \
+       } STMT_END
+#define BSET_newop(o, arg)     ((o = (OP*)safemalloc(optype_size[arg])), \
+                                memzero((char*)o,optype_size[arg]))
 #define BSET_newopn(o, arg) STMT_START {       \
        OP *oldop = o;                          \
        BSET_newop(o, arg);                     \
        oldop->op_next = o;                     \
     } STMT_END
 
-#define BSET_ret(foo) return
+#define BSET_ret(foo) STMT_START {                     \
+       Safefree(bstate->bs_obj_list);                  \
+       return;                                         \
+    } STMT_END
 
 /*
  * Kludge special-case workaround for OP_MAPSTART
@@ -132,12 +164,93 @@ typedef IV IV64;
            arg = OP_GREPSTART;                 \
        o->op_ppaddr = PL_ppaddr[arg];          \
     } STMT_END
-#define BSET_op_ppaddr(o, arg) croak("op_ppaddr not yet implemented")
+#define BSET_op_ppaddr(o, arg) Perl_croak(aTHX_ "op_ppaddr not yet implemented")
 #define BSET_curpad(pad, arg) STMT_START {     \
        PL_comppad = (AV *)arg;                 \
        pad = AvARRAY(arg);                     \
     } STMT_END
+/* this works now that Sarathy's changed the CopFILE_set macro to do the SvREFCNT_inc()
+       -- BKS 6-2-2000 */
+#define BSET_cop_file(cop, arg)                CopFILE_set(cop,arg)
+#define BSET_cop_line(cop, arg)                CopLINE_set(cop,arg)
+#define BSET_cop_stashpv(cop, arg)     CopSTASHPV_set(cop,arg)
+
+/* this is simply stolen from the code in newATTRSUB() */
+#define BSET_push_begin(ary,cv)                                \
+       STMT_START {                                    \
+           I32 oldscope = PL_scopestack_ix;            \
+           ENTER;                                      \
+           SAVECOPFILE(&PL_compiling);                 \
+           SAVECOPLINE(&PL_compiling);                 \
+           save_svref(&PL_rs);                         \
+           sv_setsv(PL_rs, PL_nrs);                    \
+           if (!PL_beginav)                            \
+               PL_beginav = newAV();                   \
+           av_push(PL_beginav, cv);                    \
+           call_list(oldscope, PL_beginav);            \
+           PL_curcop = &PL_compiling;                  \
+           PL_compiling.op_private = PL_hints;         \
+           LEAVE;                                      \
+       } STMT_END
+#define BSET_push_init(ary,cv)                                                         \
+       STMT_START {                                                                    \
+           av_unshift((PL_initav ? PL_initav : (PL_initav = newAV(), PL_initav)), 1);  \
+           av_store(PL_initav, 0, cv);                                                 \
+       } STMT_END
+#define BSET_push_end(ary,cv)                                                                  \
+       STMT_START {                                                                    \
+           av_unshift((PL_endav ? PL_endav : (PL_endav = newAV(), PL_endav)), 1);      \
+           av_store(PL_endav, 0, cv);                                                  \
+       } STMT_END
+#define BSET_OBJ_STORE(obj, ix)                        \
+       (I32)ix > bstate->bs_obj_list_fill ?    \
+       bset_obj_store(aTHX_ bstate, obj, (I32)ix) : (bstate->bs_obj_list[ix] = obj)
+
+/* NOTE: the bytecode header only sanity-checks the bytecode. If a script cares about
+ * what version of Perl it's being called under, it should do a 'require 5.6.0' or
+ * equivalent. However, since the header includes checks requiring an exact match in
+ * ByteLoader versions (we can't guarantee forward compatibility), you don't 
+ * need to specify one:
+ *     use ByteLoader;
+ * is all you need.
+ *     -- BKS, June 2000
+*/
+
+#define HEADER_FAIL(f) \
+       Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f)
+#define HEADER_FAIL1(f, arg1)  \
+       Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1)
+#define HEADER_FAIL2(f, arg1, arg2)    \
+       Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1, arg2)
 
-#define BSET_OBJ_STORE(obj, ix)                \
-       (I32)ix > bytecode_obj_list_fill ?      \
-       bset_obj_store(obj, (I32)ix) : (bytecode_obj_list[ix] = obj)
+#define BYTECODE_HEADER_CHECK                                  \
+       STMT_START {                                            \
+           U32 sz = 0;                                         \
+           strconst str;                                       \
+                                                               \
+           BGET_U32(sz); /* Magic: 'PLBC' */                   \
+           if (sz != 0x43424c50) {                             \
+               HEADER_FAIL1("bad magic (want 0x43424c50, got %#x)", (int)sz);          \
+           }                                                   \
+           BGET_strconst(str); /* archname */                  \
+           if (strNE(str, ARCHNAME)) {                         \
+               HEADER_FAIL2("wrong architecture (want %s, you have %s)",str,ARCHNAME); \
+           }                                                   \
+           BGET_strconst(str); /* ByteLoader version */        \
+           if (strNE(str, VERSION)) {                          \
+               HEADER_FAIL2("mismatched ByteLoader versions (want %s, you have %s)",   \
+                       str, VERSION);                          \
+           }                                                   \
+           BGET_U32(sz); /* ivsize */                          \
+           if (sz != IVSIZE) {                                 \
+               HEADER_FAIL("different IVSIZE");                \
+           }                                                   \
+           BGET_U32(sz); /* ptrsize */                         \
+           if (sz != PTRSIZE) {                                \
+               HEADER_FAIL("different PTRSIZE");               \
+           }                                                   \
+           BGET_strconst(str); /* byteorder */                 \
+           if (strNE(str, STRINGIFY(BYTEORDER))) {             \
+               HEADER_FAIL("different byteorder");     \
+           }                                                   \
+       } STMT_END