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621d3196fa
Introduce non-deterministic ordering into goal and prerequisite traversal to help tease out inconsistent failures that may happen when running in parallel build mode. Introduce second order into each dependency chain: 1. Existing order is syntactic order reachable via 'dep->next' 2. New order is shuffled order stored as 'dep->shuf' in each 'dep' When updating goals and prerequisites and '--shuffle' is provided, use the shuffled order to walk the graph. When automatic variable are set always use the syntactic order of parameters. * Makefile.am: Add new src/shuffle.c and src/shuffle.h file. * build_w32.bat: Ditto. * builddos.bat: Ditto. * makefile.com: Ditto. * po/POTFILES.in: Ditto. * doc/make.texi: Add documentation for --shuffle. * doc/make.1: Ditto. * src/dep.h (DEP): Add the shuf pointer. * src/filedef.h (struct file): Add was_shuffled flag. * src/main.c: (shuffle_mode): Global flag for the shuffle mode. (usage): Add the --shuffle option. (switches): Ditto. (main): Set shuffle_mode based on the command line parameter. Reshuffle prerequisites if requested. * src/remake.c (update_goal_chain): Walk the shuffled list if enabled. (update_file_1): Ditto. * src/shuffle.h: Provide an interface for shuffling prerequisites. * src/shuffle.c: Implement option parsing and prerequisite shuffling. * tests/scripts/options/shuffle: Test shuffle option and modes.
171 lines
5.2 KiB
Text
171 lines
5.2 KiB
Text
$!
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$! Makefile.com - builds GNU Make for VMS
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$!
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$! P1 = LIST will provide compiler listings.
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$! P2 = DEBUG will build an image with debug information
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$! P3 = WALL will enable all warning messages (some are suppressed since
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$! one macro intentionally causes an error condition)
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$!
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$! In case of problems with the install you might contact me at
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$! zinser@decus.de (preferred) or zinser@sysdev.deutsche-boerse.com
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$
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$! hb
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$! But don't ask Martin Zinser about the lines, I added/changed.
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$! In case of an error do some cleanup
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$ on error then $ goto cleanup
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$! in case somebody set up her/his own symbol for cc
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$ set symbol/scope=(nolocal,noglobal)
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$!
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$! Just some general constants...
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$!
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$ true = 1
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$ false = 0
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$ tmpnam = "temp_" + f$getjpi("","pid")
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$ tt = tmpnam + ".txt"
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$ tc = tmpnam + ".c"
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$!
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$! Look for the compiler used
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$!
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$ lval = ""
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$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
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$ then
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$ if f$trnlnm("SYS").eqs."" then def/nolog sys sys$library:
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$ ccopt = ""
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$ else
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$ ccopt = "/decc/prefix=(all,except=(globfree,glob))"
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$ if f$trnlnm("SYS").eqs.""
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$ then
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$ if f$trnlnm("DECC$LIBRARY_INCLUDE").nes.""
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$ then
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$ define sys decc$library_include:
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$ else
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$ if f$search("SYS$COMMON:[DECC$LIB.REFERENCE]DECC$RTLDEF.DIR").nes."" -
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then lval = "SYS$COMMON:[DECC$LIB.REFERENCE.DECC$RTLDEF],"
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$ if f$search("SYS$COMMON:[DECC$LIB.REFERENCE]SYS$STARLET_C.DIR").nes."" -
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then lval = lval+"SYS$COMMON:[DECC$LIB.REFERENCE.SYS$STARLET_C],"
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$ lval=lval+"SYS$LIBRARY:"
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$ define sys 'lval
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$ endif
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$ endif
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$ endif
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$!
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$!
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$ if (p1 .eqs. "LIST")
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$ then
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$ ccopt = ccopt + "/list/show=(expan,inclu)"
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$ endif
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$!
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$! Should we build a debug image
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$!
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$ if (p2.eqs."DEBUG")
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$ then
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$ ccopt = ccopt + "/noopt/debug"
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$ lopt = "/debug"
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$ else
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$ lopt = ""
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$ endif
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$!
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$! Do we want to see all warnings
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$!
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$ if (p3.nes."WALL")
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$ then
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$ gosub check_cc_qual
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$ endif
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$ filelist = "[.src]ar [.src]arscan [.src]commands [.src]default [.src]dir " + -
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"[.src]expand [.src]file [.src]function [.src]guile " + -
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"[.src]hash [.src]implicit [.src]job [.src]load [.src]main " + -
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"[.src]misc [.src]read [.src]remake [.src]remote-stub " + -
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"[.src]rule [.src]output [.src]signame [.src]variable " + -
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"[.src]version [.src]shuffle [.src]strcache [.src]vpath " + -
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"[.src]vmsfunctions [.src]vmsify [.src]vms_progname " + -
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"[.src]vms_exit [.src]vms_export_symbol " + -
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"[.lib]alloca [.lib]fnmatch [.lib]glob [.src]getopt1 [.src]getopt"
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$!
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$ copy [.src]config.h-vms [.src]config.h
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$ copy [.lib]fnmatch.in.h [.lib]fnmatch.h
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$ copy [.lib]glob.in.h [.lib]glob.h
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$ n=0
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$ open/write optf make.opt
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$ loop:
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$ cfile = f$elem(n," ",filelist)
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$ if cfile .eqs. " " then goto linkit
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$ write sys$output "Compiling ''cfile'..."
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$ call compileit 'cfile'
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$ n = n + 1
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$ goto loop
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$ linkit:
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$ close optf
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$ link/exe=make make.opt/opt'lopt
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$ goto cleanup
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$
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$ cleanup:
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$ if f$trnlnm("SYS").nes."" then $ deassign sys
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$ if f$trnlnm("OPTF").nes."" then $ close optf
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$ if f$search("make.opt").nes."" then $ del make.opt;*
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$ exit
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$!
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$!-----------------------------------------------------------------------------
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$!
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$! Check if this is a define relating to the properties of the C/C++
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$! compiler
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$!
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$CHECK_CC_QUAL:
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$ open/write tmpc 'tc
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$ ccqual = "/warn=(disable=questcompare)"
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$ write tmpc "#include <stdio.h>"
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$ write tmpc "unsigned int i = 1;"
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$ write tmpc "int main(){"
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$ write tmpc "if (i < 0){printf(""Mission impossible\n"");}}"
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$ close tmpc
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$ gosub cc_qual_check
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$ return
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$!
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$!-----------------------------------------------------------------------------
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$!
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$! Check for properties of C/C++ compiler
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$!
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$CC_QUAL_CHECK:
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$ cc_qual = false
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$ set message/nofac/noident/nosever/notext
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$ cc 'ccqual' 'tmpnam'
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$ if $status then cc_qual = true
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$ set message/fac/ident/sever/text
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$ delete/nolog 'tmpnam'.*;*
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$ if cc_qual then ccopt = ccopt + ccqual
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$ return
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$!-----------------------------------------------------------------------------
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$!
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$ compileit : subroutine
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$ ploc = f$locate("]",p1)
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$! filnam = p1
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$ if ploc .lt. f$length(p1)
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$ then
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$ objdir = f$extract(0, ploc+1, p1)
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$ write optf p1
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$ else
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$ objdir := []
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$ write optf objdir+p1
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$ endif
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$ cc'ccopt'/nested=none/include=([],[.src],[.lib])/obj='objdir' -
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/define=("allocated_variable_expand_for_file=alloc_var_expand_for_file",-
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"unlink=remove","HAVE_CONFIG_H","VMS") -
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'p1'
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$ exit
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$ endsubroutine : compileit
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$!
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$!-----------------------------------------------------------------------------
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$!Copyright (C) 1996-2022 Free Software Foundation, Inc.
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$!This file is part of GNU Make.
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$!Foundation; either version 3 of the License, or (at your option) any later
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$!
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$!GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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$!details.
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$!
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$!You should have received a copy of the GNU General Public License along with
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$!this program. If not, see <http://www.gnu.org/licenses/>.
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