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Diffstat (limited to 'packages/vms/generate_vax_transfer.com')
| -rw-r--r-- | packages/vms/generate_vax_transfer.com | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/packages/vms/generate_vax_transfer.com b/packages/vms/generate_vax_transfer.com new file mode 100644 index 00000000..115db8a8 --- /dev/null +++ b/packages/vms/generate_vax_transfer.com @@ -0,0 +1,274 @@ +$! File: generate_vax_transfer.com +$! +$! $Id$ +$! +$! File to generate and compile the VAX transfer vectors from reading in the +$! Alpha/Itanium gnv_libcurl_symbols.opt file. +$! +$! This procedure patches the VAX Macro32 assembler to be case sensitive +$! and then compiles the generated +$! +$! The output of this procedure is: +$! gnv_libcurl_xfer.mar_exact +$! gnv_libcurl_xfer.obj +$! gnv_libcurl_xfer.opt +$! macro32_exactcase.exe +$! +$! Copyright 2013, John Malmberg +$! +$! Permission to use, copy, modify, and/or distribute this software for any +$! purpose with or without fee is hereby granted, provided that the above +$! copyright notice and this permission notice appear in all copies. +$! +$! THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +$! WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +$! MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +$! ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +$! WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +$! ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT +$! OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +$! +$! 20-Jul-2013 J. Malmberg +$!============================================================================ +$! +$! Save this so we can get back. +$ default_dir = f$environment("default") +$! +$ on warning then goto all_exit +$! +$! Want hard tabs in the generated file. +$ tab[0,8] = 9 +$! +$! This procedure is used on VAX only +$ if (f$getsyi("HW_MODEL") .ge. 1024) +$ then +$ write sys$output "This procedure is only used on VAX." +$ goto all_exit +$ endif +$! +$! +$! Get the libcurl version to generate the ident string. +$! ident string is max of 31 characters. +$! +$ ident_string = "unknown" +$ open/read cver [-.-.include.curl]curlver.h +$cver_loop: +$ read/end=cver_loop_end cver line_in +$ line_in = f$edit(line_in, "COMPRESS,TRIM") +$ if line_in .eqs. "" then goto cver_loop +$ code = f$extract(0, 1, line_in) +$ if code .nes. "#" then goto cver_loop +$ directive = f$element(0, " ", line_in) +$ if directive .nes. "#define" then goto cver_loop +$ name = f$element(1, " ", line_in) +$ if name .nes. "LIBCURL_VERSION" then goto cver_loop +$ ident_string = f$element(2, " ", line_in) - "" - "" +$cver_loop_end: +$ close cver +$! +$ open/read aopt gnv_libcurl_symbols.opt +$! +$! Write out the header +$ gosub do_header +$! +$ open/append vopt gnv_libcurl_xfer.mar_exact +$ write vopt tab,".IDENT /", ident_string, "/" +$! +$ write vopt tab, ".PSECT LIBCURL_XFERVECTORS -" +$ write vopt tab,tab,tab, "PIC,USR,CON,REL,GBL,SHR,EXE,RD,NOWRT,QUAD" +$ write vopt "" +$ write vopt tab, "SPARE", tab, "; never delete this spare" +$ write vopt ";" +$ write vopt ";", tab, "Exact case and upper case transfer vectors" +$! +$ alias_count = 0 +$vector_loop: +$! +$! Read in symbol_vector +$! +$ read/end=vector_loop_end aopt line_in +$ line = f$edit(line_in, "UNCOMMENT,COMPRESS,TRIM") +$ if line .eqs. "" then goto vector_loop +$! +$ line_u = f$edit(line, "UPCASE") +$ key = f$element(0, "=", line_u) +$ if (key .eqs. "SYMBOL_VECTOR") +$ then +$ symbol_string = f$element(1, "=", line) - "(" +$ symbol_type = f$element(2, "=", line_u) - ")" +$ symbol_name = f$element(1, "/", symbol_string) +$ if symbol_type .nes. "PROCEDURE" +$ then +$ write sys$output "%CURLBUILD-W-NOTPROC, " + - +$ "This procedure can only handle procedure vectors" +$ write sys$output - +"Data vectors require manual construction for which this procedure or" +$ write sys$output - +"the shared library needs to be updated to resolve." +$ write sys$output - +"the preferred solution is to have a procedure return the address of the " +$ write sys$output - +"the variable instead of having a variable, as if the size of the variable " + write sys$output - +"changes, the symbol vector is no longer backwards compatible." +$ endif +$ if (symbol_name .eqs. "/") +$ then +$ symbol_name = symbol_string +$ write vopt tab, symbol_type, tab, symbol_name +$ else +$ alias_count = alias_count + 1 +$ symbol_alias = f$element(0, "/", symbol_string) +$ write vopt - + tab, "''symbol_type_U", tab, symbol_name, tab, symbol_alias +$ endif +$ endif +$ goto vector_loop +$vector_loop_end: +$! +$! End of pass one, second pass needed if aliases exist +$ close aopt +$! +$ if alias_count .eq. 0 then goto finish_file +$! +$! Start pass 2, write stub routine header +$! +$ open/read aopt gnv_libcurl_symbols.opt +$! +$alias_loop: +$! +$! Read in symbol_vector +$! +$ read/end=alias_loop_end aopt line_in +$ line = f$edit(line_in, "UNCOMMENT,COMPRESS,TRIM") +$ if line .eqs. "" then goto alias_loop +$! +$ line_u = f$edit(line, "UPCASE") +$ key = f$element(0, "=", line_u) +$ if (key .eqs. "SYMBOL_VECTOR") +$ then +$ symbol_string = f$element(1, "=", line) - "(" +$ symbol_type = f$element(2, "=", line_u) - ")" +$ symbol_name = f$element(1, "/", symbol_string) +$ if (symbol_name .eqs. "/") +$ then +$ symbol_name = symbol_string +$ else +$ alias_count = alias_count + 1 +$ symbol_alias = f$element(0, "/", symbol_string) +$ write vopt tab, ".ENTRY", tab, symbol_alias, ", ^M<>" +$ endif +$ endif +$ goto alias_loop +$! read in symbol_vector +$! if not alias, then loop +$! write out subroutine name +$! +$alias_loop_end: +$! +$ write vopt tab, "MOVL #1, R0" +$ write vopt tab, "RET" +$! +$finish_file: +$! +$ write vopt "" +$ write vopt tab, ".END" +$! +$ close aopt +$ close vopt +$! +$! Patch the Macro32 compiler +$!---------------------------- +$ patched_macro = "sys$disk:[]macro32_exactcase.exe" +$ if f$search(patched_macro) .eqs. "" +$ then +$ copy sys$system:macro32.exe 'patched_macro' +$ patch @macro32_exactcase.patch +$ endif +$ define/user macro32 'patched_macro' +$ macro/object=gnv_libcurl_xfer.obj gnv_libcurl_xfer.mar_exact +$! +$! Create the option file for linking the shared image. +$ create gnv_libcurl_xfer.opt +$ open/append lco gnv_libcurl_xfer.opt +$ write lco "gsmatch=lequal,1,1" +$ write lco "cluster=transfer_vector,,,''default_dir'gnv_libcurl_xfer" +$ write lco "collect=libcurl_global, libcurl_xfervectors" +$ close lco +$! +$! +$ goto all_exit +$! +$! Process the header +$do_header: +$! +$! Force the mode of the file to same as text editor generated. +$ create gnv_libcurl_xfer.mar_exact +$deck +; File: gnv_libcurl_xfer.mar_exact +; +; VAX transfer vectors +; +; This needs to be compiled with a specialized patch on Macro32 to make it +; preserve the case of symbols instead of converting it to uppercase. +; +; This patched Macro32 requires all directives to be in upper case. +; +; There are three sets of symbols for transfer vectors here. +; +; The first for upper case which matches the tradition method of generating +; VAX transfer vectors. +; +; The second is the exact case for compatibilty with open source C programs +; that expect exact case symbols in images. These are separated because a +; previous kit had only upper case symbols. +; +; The third is the routine stub that is used to resolve part of the upper +; case transfer vectors, with exact case entry symbols. +; +; When you add routines, you need to add them after the second set of transfer +; vectors for both upper and exact case, and then additional entry points +; in upper case added to stub routines. +; +;************************************************************************* + + .TITLE libcurl_xfer - Transfer vector for libcurl + .DISABLE GLOBAL + +; +; Macro to generate a transfer vector entry +; + .MACRO PROCEDURE NAME + .EXTRN 'NAME + .ALIGN QUAD + .TRANSFER 'NAME + .MASK 'NAME + JMP 'NAME+2 + .ENDM + + .MACRO PROCEDUREU NAME NAMEU + .EXTRN 'NAME + .ALIGN QUAD + .TRANSFER 'NAMEU + .MASK 'NAME + JMP 'NAME+2 + + .ENDM +; +; +; Macro to reserve a spare entry. +; + .MACRO SPARE + .ALIGN QUAD + .ALIGN QUAD + .QUAD 0 + .ENDM + +$EOD +$! +$! +$ return +$! +$all_exit: +$set def 'default_dir' +$exit '$status' |