contrib/perl5/ext/B/ramblings/runtime.porting

   1 Notes on porting the perl runtime PP engine.
   2 Importance: 1 = who cares?, 10 = vital
   3 Difficulty: 1 = trivial, 10 = very difficult. Level assumes a
   4 reasonable implementation of the SV and OP API already ported.
   5
   6 OP              Import  Diff    Comments
   7 null            10      1
   8 stub            10      1
   9 scalar          10      1
  10 pushmark        10      1       PUSHMARK
  11 wantarray       7       3       cxstack, dopoptosub
  12 const           10      1
  13 gvsv            10      1       save_scalar
  14 gv              10      1
  15 gelem           3       3
  16 padsv           10      2       SAVECLEARSV, provide_ref
  17 padav           10      2
  18 padhv           10      2
  19 padany          1       1
  20 pushre          7       3       pushes an op. Blech.
  21 rv2gv           6       5
  22 rv2sv           10      4
  23 av2arylen       7       3       sv_magic
  24 rv2cv           8       5       sv_2cv
  25 anoncode        7       6       cv_clone
  26 prototype       4       4       sv_2cv
  27 refgen          8       3
  28 srefgen         8       2
  29 ref             8       3
  30 bless           7       3
  31 backtick        5       4
  32 glob            5       2       do_readline
  33 readline        8       2       do_readline
  34 rcatline        8       2
  35 regcmaybe       8       1
  36 regcomp         8       9       pregcomp
  37 match           8       10
  38 subst           8       10
  39 substcont       8       7
  40 trans           7       4       do_trans
  41 sassign         10      3       mg_find, SvSETMAGIC
  42 aassign         10      5
  43 chop            8       3       do_chop
  44 schop           8       3       do_chop
  45 chomp           8       3       do_chomp
  46 schomp          8       3       do_chomp
  47 defined         10      2
  48 undef           10      3
  49 study           4       5
  50 pos             8       3       PVLV, mg_find
  51 preinc          10      2       sv_inc, SvSETMAGIC
  52 i_preinc
  53 predec          10      2       sv_dec, SvSETMAGIC
  54 i_predec
  55 postinc         10      2       sv_dec, SvSETMAGIC
  56 i_postinc
  57 postdec         10      2       sv_dec, SvSETMAGIC
  58 i_postdec
  59 pow             10      1
  60 multiply        10      1
  61 i_multiply      10      1
  62 divide          10      2
  63 i_divide        10      1
  64 modulo          10      2
  65 i_modulo        10      1
  66 repeat          6       4
  67 add             10      1
  68 i_add           10      1
  69 subtract        10      1
  70 i_subtract      10      1
  71 concat          10      2       mg_get
  72 stringify       10      2       sv_setpvn
  73 left_shift      10      1
  74 right_shift     10      1
  75 lt              10      1
  76 i_lt            10      1
  77 gt              10      1
  78 i_gt            10      1
  79 le              10      1
  80 i_le            10      1
  81 ge              10      1
  82 i_ge            10      1
  83 eq              10      1
  84 i_eq            10      1
  85 ne              10      1
  86 i_ne            10      1
  87 ncmp            10      1
  88 i_ncmp          10      1
  89 slt             10      2
  90 sgt             10      2
  91 sle             10      2
  92 sge             10      2
  93 seq             10      2       sv_eq
  94 sne             10      2
  95 scmp            10      2
  96 bit_and         10      2
  97 bit_xor         10      2
  98 bit_or          10      2
  99 negate          10      3
 100 i_negate        10      1
 101 not             10      1
 102 complement      10      3
 103 atan2           6       1
 104 sin             6       1
 105 cos             6       1
 106 rand            5       2
 107 srand           5       2
 108 exp             6       1
 109 log             6       2
 110 sqrt            6       2
 111 int             10      2
 112 hex             9       2
 113 oct             9       2
 114 abs             10      1
 115 length          10      1
 116 substr          10      4       PVLV
 117 vec             5       4
 118 index           9       3
 119 rindex          9       3
 120 sprintf         9       4       do_sprintf
 121 formline        6       7
 122 ord             6       2
 123 chr             6       2
 124 crypt           3       2
 125 ucfirst         6       2
 126 lcfirst         6       2
 127 uc              6       2
 128 lc              6       2
 129 quotemeta       6       3
 130 rv2av           10      3       save_svref, mg_get, save_ary
 131 aelemfast       10      2       av_fetch
 132 aelem           10      3
 133 aslice          9       4
 134 each            10      3       hv_iternext
 135 values          10      3       do_kv
 136 keys            10      3       do_kv
 137 delete          10      3
 138 exists          10      3
 139 rv2hv           10      3       save_svref, mg_get, save_ary, do_kv
 140 helem           10      3       save_svref, provide_ref
 141 hslice          9       4
 142 unpack          9       6       lengthy
 143 pack            9       6       lengthy
 144 split           9       9
 145 join            10      4       do_join
 146 list            10      2
 147 lslice          9       4
 148 anonlist        10      2
 149 anonhash        10      3
 150 splice          9       6
 151 push            10      2
 152 pop             10      2
 153 shift           10      2
 154 unshift         10      2
 155 sort            6       7
 156 reverse         9       4
 157 grepstart       6       5       modifies flow of control
 158 grepwhile       6       5       modifies flow of control
 159 mapstart        1       1
 160 mapwhile        6       5       modifies flow of control
 161 range           7       3       modifies flow of control
 162 flip            7       4       modifies flow of control
 163 flop            7       4       modifies flow of control
 164 and             10      3       modifies flow of control
 165 or              10      3       modifies flow of control
 166 xor
 167 cond_expr       10      3       modifies flow of control
 168 andassign       7       3       modifies flow of control
 169 orassign        7       3       modifies flow of control
 170 method          8       5
 171 entersub        10      7
 172 leavesub        10      5
 173 caller          2       8
 174 warn            9       3
 175 die             9       3
 176 reset           2       2
 177 lineseq         1       1
 178 nextstate       10      1       Update stack_sp from cxstack. FREETMPS.
 179 dbstate         3       7
 180 unstack
 181 enter           10      3       cxstack, ENTER, SAVETMPS, PUSHBLOCK
 182 leave           10      3       cxstack, SAVETMPS, LEAVE, POPBLOCK
 183 scope           1       1
 184 enteriter       9       4       cxstack
 185 iter            9       3       cxstack
 186 enterloop       10      4
 187 leaveloop       10      4
 188 return          10      5
 189 last            9       6
 190 next            9       6
 191 redo            9       6
 192 dump            1       9       pp_goto
 193 goto            6       9
 194 exit            9       2       my_exit
 195 open            9       5       do_open
 196 close           9       3       do_close
 197 pipe_op         7       4
 198 fileno          9       2
 199 umask           4       2
 200 binmode         4       2
 201 tie             5       5       pp_entersub
 202 untie           5       2       sv_unmagic
 203 tied            5       2
 204 dbmopen         4       5
 205 dbmclose        4       2
 206 sselect         4       4
 207 select          7       3
 208 getc            7       2
 209 read            8       2       pp_sysread
 210 enterwrite      4       4       doform
 211 leavewrite      4       5
 212 prtf            4       4       do_sprintf
 213 print           8       6
 214 sysopen         8       2
 215 sysread         8       4
 216 syswrite        8       4       pp_send
 217 send            8       4
 218 recv            8       4       pp_sysread
 219 eof             9       2
 220 tell            9       3
 221 seek            9       2
 222 truncate        8       3
 223 fcntl           8       4       pp_ioctl
 224 ioctl           8       4
 225 flock           8       2
 226 socket          5       3
 227 sockpair        5       3
 228 bind            5       3
 229 connect         5       3
 230 listen          5       3
 231 accept          5       3
 232 shutdown        5       2
 233 gsockopt        5       3       pp_ssockopt
 234 ssockopt        5       3
 235 getsockname     5       3       pp_getpeername
 236 getpeername     5       3
 237 lstat           5       4       pp_stat
 238 stat            5       4       lengthy
 239 ftrread         5       2       cando
 240 ftrwrite        5       2       cando
 241 ftrexec         5       2       cando
 242 fteread         5       2       cando
 243 ftewrite        5       2       cando
 244 fteexec         5       2       cando
 245 ftis            5       2       cando
 246 fteowned        5       2       cando
 247 ftrowned        5       2       cando
 248 ftzero          5       2       cando
 249 ftsize          5       2       cando
 250 ftmtime         5       2       cando
 251 ftatime         5       2       cando
 252 ftctime         5       2       cando
 253 ftsock          5       2       cando
 254 ftchr           5       2       cando
 255 ftblk           5       2       cando
 256 ftfile          5       2       cando
 257 ftdir           5       2       cando
 258 ftpipe          5       2       cando
 259 ftlink          5       2       cando
 260 ftsuid          5       2       cando
 261 ftsgid          5       2       cando
 262 ftsvtx          5       2       cando
 263 fttty           5       2       cando
 264 fttext          5       4
 265 ftbinary        5       4       fttext
 266 chdir
 267 chown
 268 chroot
 269 unlink
 270 chmod
 271 utime
 272 rename
 273 link
 274 symlink
 275 readlink
 276 mkdir
 277 rmdir
 278 open_dir
 279 readdir
 280 telldir
 281 seekdir
 282 rewinddir
 283 closedir
 284 fork
 285 wait
 286 waitpid
 287 system
 288 exec
 289 kill
 290 getppid
 291 getpgrp
 292 setpgrp
 293 getpriority
 294 setpriority
 295 time
 296 tms
 297 localtime
 298 gmtime
 299 alarm
 300 sleep
 301 shmget
 302 shmctl
 303 shmread
 304 shmwrite
 305 msgget
 306 msgctl
 307 msgsnd
 308 msgrcv
 309 semget
 310 semctl
 311 semop
 312 require         6       9       doeval
 313 dofile          6       9       doeval
 314 entereval       6       9       doeval
 315 leaveeval       6       5
 316 entertry        7       4       modifies flow of control
 317 leavetry        7       3
 318 ghbyname
 319 ghbyaddr
 320 ghostent
 321 gnbyname
 322 gnbyaddr
 323 gnetent
 324 gpbyname
 325 gpbynumber
 326 gprotoent
 327 gsbyname
 328 gsbyport
 329 gservent
 330 shostent
 331 snetent
 332 sprotoent
 333 sservent
 334 ehostent
 335 enetent
 336 eprotoent
 337 eservent
 338 gpwnam
 339 gpwuid
 340 gpwent
 341 spwent
 342 epwent
 343 ggrnam
 344 ggrgid
 345 ggrent
 346 sgrent
 347 egrent
 348 getlogin
 349 syscall
 350