Annotation of embedaddon/curl/packages/vms/generate_vax_transfer.com, revision 1.1
1.1 ! misho 1: $! File: generate_vax_transfer.com
! 2: $!
! 3: $! $Id$
! 4: $!
! 5: $! File to generate and compile the VAX transfer vectors from reading in the
! 6: $! Alpha/Itanium gnv_libcurl_symbols.opt file.
! 7: $!
! 8: $! This procedure patches the VAX Macro32 assembler to be case sensitive
! 9: $! and then compiles the generated
! 10: $!
! 11: $! The output of this procedure is:
! 12: $! gnv_libcurl_xfer.mar_exact
! 13: $! gnv_libcurl_xfer.obj
! 14: $! gnv_libcurl_xfer.opt
! 15: $! macro32_exactcase.exe
! 16: $!
! 17: $! Copyright 2013 - 2020, John Malmberg
! 18: $!
! 19: $! Permission to use, copy, modify, and/or distribute this software for any
! 20: $! purpose with or without fee is hereby granted, provided that the above
! 21: $! copyright notice and this permission notice appear in all copies.
! 22: $!
! 23: $! THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 24: $! WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 25: $! MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 26: $! ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 27: $! WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 28: $! ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
! 29: $! OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 30: $!
! 31: $! 20-Jul-2013 J. Malmberg
! 32: $!============================================================================
! 33: $!
! 34: $! Save this so we can get back.
! 35: $ default_dir = f$environment("default")
! 36: $!
! 37: $ on warning then goto all_exit
! 38: $!
! 39: $! Want hard tabs in the generated file.
! 40: $ tab[0,8] = 9
! 41: $!
! 42: $! This procedure is used on VAX only
! 43: $ if (f$getsyi("HW_MODEL") .ge. 1024)
! 44: $ then
! 45: $ write sys$output "This procedure is only used on VAX."
! 46: $ goto all_exit
! 47: $ endif
! 48: $!
! 49: $!
! 50: $! Get the libcurl version to generate the ident string.
! 51: $! ident string is max of 31 characters.
! 52: $!
! 53: $ ident_string = "unknown"
! 54: $ open/read cver [-.-.include.curl]curlver.h
! 55: $cver_loop:
! 56: $ read/end=cver_loop_end cver line_in
! 57: $ line_in = f$edit(line_in, "COMPRESS,TRIM")
! 58: $ if line_in .eqs. "" then goto cver_loop
! 59: $ code = f$extract(0, 1, line_in)
! 60: $ if code .nes. "#" then goto cver_loop
! 61: $ directive = f$element(0, " ", line_in)
! 62: $ if directive .nes. "#define" then goto cver_loop
! 63: $ name = f$element(1, " ", line_in)
! 64: $ if name .nes. "LIBCURL_VERSION" then goto cver_loop
! 65: $ ident_string = f$element(2, " ", line_in) - "" - ""
! 66: $cver_loop_end:
! 67: $ close cver
! 68: $!
! 69: $ open/read aopt gnv_libcurl_symbols.opt
! 70: $!
! 71: $! Write out the header
! 72: $ gosub do_header
! 73: $!
! 74: $ open/append vopt gnv_libcurl_xfer.mar_exact
! 75: $ write vopt tab,".IDENT /", ident_string, "/"
! 76: $!
! 77: $ write vopt tab, ".PSECT LIBCURL_XFERVECTORS -"
! 78: $ write vopt tab,tab,tab, "PIC,USR,CON,REL,GBL,SHR,EXE,RD,NOWRT,QUAD"
! 79: $ write vopt ""
! 80: $ write vopt tab, "SPARE", tab, "; never delete this spare"
! 81: $ write vopt ";"
! 82: $ write vopt ";", tab, "Exact case and upper case transfer vectors"
! 83: $!
! 84: $ alias_count = 0
! 85: $vector_loop:
! 86: $!
! 87: $! Read in symbol_vector
! 88: $!
! 89: $ read/end=vector_loop_end aopt line_in
! 90: $ line = f$edit(line_in, "UNCOMMENT,COMPRESS,TRIM")
! 91: $ if line .eqs. "" then goto vector_loop
! 92: $!
! 93: $ line_u = f$edit(line, "UPCASE")
! 94: $ key = f$element(0, "=", line_u)
! 95: $ if (key .eqs. "SYMBOL_VECTOR")
! 96: $ then
! 97: $ symbol_string = f$element(1, "=", line) - "("
! 98: $ symbol_type = f$element(2, "=", line_u) - ")"
! 99: $ symbol_name = f$element(1, "/", symbol_string)
! 100: $ if symbol_type .nes. "PROCEDURE"
! 101: $ then
! 102: $ write sys$output "%CURLBUILD-W-NOTPROC, " + -
! 103: $ "This procedure can only handle procedure vectors"
! 104: $ write sys$output -
! 105: "Data vectors require manual construction for which this procedure or"
! 106: $ write sys$output -
! 107: "the shared library needs to be updated to resolve."
! 108: $ write sys$output -
! 109: "the preferred solution is to have a procedure return the address of the "
! 110: $ write sys$output -
! 111: "the variable instead of having a variable, as if the size of the variable "
! 112: write sys$output -
! 113: "changes, the symbol vector is no longer backwards compatible."
! 114: $ endif
! 115: $ if (symbol_name .eqs. "/")
! 116: $ then
! 117: $ symbol_name = symbol_string
! 118: $ write vopt tab, symbol_type, tab, symbol_name
! 119: $ else
! 120: $ alias_count = alias_count + 1
! 121: $ symbol_alias = f$element(0, "/", symbol_string)
! 122: $ write vopt -
! 123: tab, "''symbol_type_U", tab, symbol_name, tab, symbol_alias
! 124: $ endif
! 125: $ endif
! 126: $ goto vector_loop
! 127: $vector_loop_end:
! 128: $!
! 129: $! End of pass one, second pass needed if aliases exist
! 130: $ close aopt
! 131: $!
! 132: $ if alias_count .eq. 0 then goto finish_file
! 133: $!
! 134: $! Start pass 2, write stub routine header
! 135: $!
! 136: $ open/read aopt gnv_libcurl_symbols.opt
! 137: $!
! 138: $alias_loop:
! 139: $!
! 140: $! Read in symbol_vector
! 141: $!
! 142: $ read/end=alias_loop_end aopt line_in
! 143: $ line = f$edit(line_in, "UNCOMMENT,COMPRESS,TRIM")
! 144: $ if line .eqs. "" then goto alias_loop
! 145: $!
! 146: $ line_u = f$edit(line, "UPCASE")
! 147: $ key = f$element(0, "=", line_u)
! 148: $ if (key .eqs. "SYMBOL_VECTOR")
! 149: $ then
! 150: $ symbol_string = f$element(1, "=", line) - "("
! 151: $ symbol_type = f$element(2, "=", line_u) - ")"
! 152: $ symbol_name = f$element(1, "/", symbol_string)
! 153: $ if (symbol_name .eqs. "/")
! 154: $ then
! 155: $ symbol_name = symbol_string
! 156: $ else
! 157: $ alias_count = alias_count + 1
! 158: $ symbol_alias = f$element(0, "/", symbol_string)
! 159: $ write vopt tab, ".ENTRY", tab, symbol_alias, ", ^M<>"
! 160: $ endif
! 161: $ endif
! 162: $ goto alias_loop
! 163: $! read in symbol_vector
! 164: $! if not alias, then loop
! 165: $! write out subroutine name
! 166: $!
! 167: $alias_loop_end:
! 168: $!
! 169: $ write vopt tab, "MOVL #1, R0"
! 170: $ write vopt tab, "RET"
! 171: $!
! 172: $finish_file:
! 173: $!
! 174: $ write vopt ""
! 175: $ write vopt tab, ".END"
! 176: $!
! 177: $ close aopt
! 178: $ close vopt
! 179: $!
! 180: $! Patch the Macro32 compiler
! 181: $!----------------------------
! 182: $ patched_macro = "sys$disk:[]macro32_exactcase.exe"
! 183: $ if f$search(patched_macro) .eqs. ""
! 184: $ then
! 185: $ copy sys$system:macro32.exe 'patched_macro'
! 186: $ patch @macro32_exactcase.patch
! 187: $ endif
! 188: $ define/user macro32 'patched_macro'
! 189: $ macro/object=gnv_libcurl_xfer.obj gnv_libcurl_xfer.mar_exact
! 190: $!
! 191: $! Create the option file for linking the shared image.
! 192: $ create gnv_libcurl_xfer.opt
! 193: $ open/append lco gnv_libcurl_xfer.opt
! 194: $ write lco "gsmatch=lequal,1,1"
! 195: $ write lco "cluster=transfer_vector,,,''default_dir'gnv_libcurl_xfer"
! 196: $ write lco "collect=libcurl_global, libcurl_xfervectors"
! 197: $ close lco
! 198: $!
! 199: $!
! 200: $ goto all_exit
! 201: $!
! 202: $! Process the header
! 203: $do_header:
! 204: $!
! 205: $! Force the mode of the file to same as text editor generated.
! 206: $ create gnv_libcurl_xfer.mar_exact
! 207: $deck
! 208: ; File: gnv_libcurl_xfer.mar_exact
! 209: ;
! 210: ; VAX transfer vectors
! 211: ;
! 212: ; This needs to be compiled with a specialized patch on Macro32 to make it
! 213: ; preserve the case of symbols instead of converting it to uppercase.
! 214: ;
! 215: ; This patched Macro32 requires all directives to be in upper case.
! 216: ;
! 217: ; There are three sets of symbols for transfer vectors here.
! 218: ;
! 219: ; The first for upper case which matches the tradition method of generating
! 220: ; VAX transfer vectors.
! 221: ;
! 222: ; The second is the exact case for compatibility with open source C programs
! 223: ; that expect exact case symbols in images. These are separated because a
! 224: ; previous kit had only upper case symbols.
! 225: ;
! 226: ; The third is the routine stub that is used to resolve part of the upper
! 227: ; case transfer vectors, with exact case entry symbols.
! 228: ;
! 229: ; When you add routines, you need to add them after the second set of transfer
! 230: ; vectors for both upper and exact case, and then additional entry points
! 231: ; in upper case added to stub routines.
! 232: ;
! 233: ;*************************************************************************
! 234:
! 235: .TITLE libcurl_xfer - Transfer vector for libcurl
! 236: .DISABLE GLOBAL
! 237:
! 238: ;
! 239: ; Macro to generate a transfer vector entry
! 240: ;
! 241: .MACRO PROCEDURE NAME
! 242: .EXTRN 'NAME
! 243: .ALIGN QUAD
! 244: .TRANSFER 'NAME
! 245: .MASK 'NAME
! 246: JMP 'NAME+2
! 247: .ENDM
! 248:
! 249: .MACRO PROCEDUREU NAME NAMEU
! 250: .EXTRN 'NAME
! 251: .ALIGN QUAD
! 252: .TRANSFER 'NAMEU
! 253: .MASK 'NAME
! 254: JMP 'NAME+2
! 255:
! 256: .ENDM
! 257: ;
! 258: ;
! 259: ; Macro to reserve a spare entry.
! 260: ;
! 261: .MACRO SPARE
! 262: .ALIGN QUAD
! 263: .ALIGN QUAD
! 264: .QUAD 0
! 265: .ENDM
! 266:
! 267: $EOD
! 268: $!
! 269: $!
! 270: $ return
! 271: $!
! 272: $all_exit:
! 273: $set def 'default_dir'
! 274: $exit '$status'
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