From: Vadim Konovalov Date: Sat, 9 Jun 2007 19:41:44 +0000 (+0200) Subject: cross-compilation for linux X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=608969de9d8f7b5ff63543f0fb8b9f3bee668da2;p=p5sagit%2Fp5-mst-13.2.git cross-compilation for linux From: "Konovalov, Vadim Vladimirovich \(Vadim\)** CTR **" Message-ID: p4raw-id: //depot/perl@31362 --- diff --git a/Cross/Makefile-cross-SH b/Cross/Makefile-cross-SH index c910a9b..bb1e0e3 100755 --- a/Cross/Makefile-cross-SH +++ b/Cross/Makefile-cross-SH @@ -327,9 +327,7 @@ CCCMDSRC = \`sh \$(shellflags) cflags-cross-${CROSS_NAME} "optimize='\$(OPTIMIZE ## In the following dollars and backticks do not need the extra backslash. $spitshell >>$Makefile <<'!NO!SUBS!' -XCOREDIR = ./xlib/$(CROSS_NAME)/CORE - -CONFIGPM = xlib/$(CROSS_NAME)/Config.pm xlib/$(CROSS_NAME)/Config_heavy.pl +CONFIGPM = xlib/$(CROSS_NAME)/Config.pm private = preplibrary $(CONFIGPM) $(CROSS_LIB)/Config.pod @@ -766,17 +764,11 @@ makeppport: miniperl$(EXE_EXT) $(CONFIGPM) $(LDLIBPTH) ./miniperl$(EXE_EXT) -Ilib mkppport $(CROSS_LIB)/Config.pod: config.sh miniperl configpm Porting/Glossary - $(LDLIBPTH) ./miniperl -Ilib configpm --cross=$(CROSS_NAME) --heavy=$(CROSS_LIB)/Config_heavy.pl - #TODO $(XCOPY) ..\*.h $(XCOREDIR)\*.* - #TODO $(XCOPY) ..\*.inc $(XCOREDIR)\*.* - #TODO $(XCOPY) *.h $(XCOREDIR)\*.* - #TODO $(XCOPY) ..\ext\re\re.pm $(LIBDIR)\*.* - #TODO $(RCOPY) include $(XCOREDIR)\*.* - #TODO $(LDLIBPTH) ./miniperl -Ilib -MCross=$(CROSS_NAME) config_h.PL "INST_VER=$(INST_VER)" "CORE_DIR=$(XCOREDIR)" "CONFIG_H=xconfig.h" - #TODO cp xconfig.h $(CROSS_LIB)/config.h - #TODO cp xconfig.h $(CROSS_LIB)/xconfig.h - -$(CONFIGPM): $(CROSS_LIB)/Config.pod + $(LDLIBPTH) ./miniperl -Ilib configpm --cross=$(CROSS_NAME) + cp *.h $(CROSS_LIB)/ + cp ext/re/re.pm $(LIBDIR)/ + +$(CONFIGPM): $(CROSS_LIB)/Config.pod xconfig.h lib/re.pm: ext/re/re.pm @-rm -f $@ @@ -1103,7 +1095,9 @@ config.h: config_h.SH config.sh xconfig.h: config_h.SH Cross/config-$(CROSS_NAME).sh CONFIG_SH=Cross/config-$(CROSS_NAME).sh CONFIG_H=xconfig.h $(SHELL) config_h.SH + #TODO $(LDLIBPTH) ./miniperl -Ilib -MCross=$(CROSS_NAME) config_h.PL "INST_VER=$(INST_VER)" "CORE_DIR=$(CROSS_LIB)" "CONFIG_H=xconfig.h" cp xconfig.h $(CROSS_LIB)/ + cp xconfig.h $(CROSS_LIB)/config.h # When done, touch perlmain.c so that it doesn't get remade each time. .PHONY: depend diff --git a/Cross/README b/Cross/README index ea848b4..683ef93 100644 --- a/Cross/README +++ b/Cross/README @@ -34,17 +34,14 @@ your path. Your built Perl environment is in install_me_here/ in your build directory. From here you can package and deploy as you wish. -The Obvious Ommissions ----------------------- +Omissions +---------- -This does NOT perform any installation as site installation method -will be dependent on the target architecture and OS. +This does NOT perform any installation. -make test will NOT work as the binaries and libraries will not execute -on your BUILD machine. +Make test will NOT work. -Due to space limitations on the Zaurus (it's a PDA) we do not provide -documentation in the core - Therefore man pages are not even generated. +We do not provide documentation in the core, man pages are not generated. Other Targets (For Developers) ------------------------------ diff --git a/Cross/README.new b/Cross/README.new new file mode 100644 index 0000000..05e59f6 --- /dev/null +++ b/Cross/README.new @@ -0,0 +1,89 @@ +You're reading ./Cross/README.new, describing Perl cross-compilation process. +NOTE: this file will replace ./Cross/README, after cross-compilation scheme +will stabilize; + +=head1 Cross-compilation for linux + +This is second approach to linux cross-compiling, which should allow building +full perl and entensions for target platform. Cross-compiling for linux +uses similar approach and share same files as cross-compiling for WINCE. + +We refer to HOST as the platform where the build is performed, and to +TARGET as where final executables will run. + +=head2 Basic ideas + +=head3 common + +Unlike WINCE, output files from GCC cross-compiler are produced in the same +directory where C files are. All TARGET binaries have different extensions +so to distinguish HOST and TARGET binaries. Namely, object files for C +cross-compilation will have extension C<.armo>, executable files will have +C<.arm>. + +After typical cross-compilation the following files will be built, among +others: + + sv.c + sv.o + sv.armo + libperl.arma + +(this approach may be reconsidered, however.) + +=head3 build process + +C is built. This executable is intended to run on HOST, and it +will facilitate the remaining build process; all binaries built after it are +foreign (TARGET) and should not run locally (HOST). + +Unlike HOST build, miniperl will not have C of HOST within reach; +it rather will use the C from the cross-compilation directories. +In fact, if the build process does have Config.pm within reach, this is only +an indication of a mistake somewhere in the middle. + + # following command is okay: + ./miniperl -Ilib -MCross -MConfig -e 1 + # following command should cluck, and it is bad if it does not: + ./miniperl -Ilib -MConfig -e 1 + +After C is built, C is invoked to create right C +in right place and its corresponding Cross.pm. + +File C is dead simple: for given cross-architecture places in @INC +a path where perl modules are, and right C in that place. + +That said, C should report an error, because +it can not find C. If it does not give an error -- wrong C +is substituted, and resulting binaries will be a mess. + +C should run okay, and it will provide right +C for further compilations. + +During extensions build phase, the script C<./ext/util/make_ext_cross> is +invoked. + +All invokes of C are provided with C<-MCross> so to enable cross- +compile. + +=head2 BUILD + +=head3 Tools & SDK + +For compiling, you need following: + +=over 4 + +=item * TODO + +=back + +=head1 Things to be done + +=over 4 + +=item * better distinguishing of config.h/xconfig.h, dependancies + +=item * object files created in ./xlib/cross-name/ ? + +=back diff --git a/Cross/build-arm-n770-sh b/Cross/build-arm-n770-sh index a43236e..75922e5 100755 --- a/Cross/build-arm-n770-sh +++ b/Cross/build-arm-n770-sh @@ -3,6 +3,8 @@ # this approach is like Perl-CE cross-compiling, and allows # for full TARGET perl (as opposed to renamed miniperl) +# to skip Configure/build for HOST miniperl, pass "noconf" argument to this script + # some trick is different, however - the file extension for objects files # are choosen to be .${CROSS_NAME}, .armo in our case @@ -31,8 +33,7 @@ cp config.sh-arm-linux-n770 config-${CROSS_NAME}.sh # following should be done better: cd .. -if false -then +if [[ "x$1" != xnoconf* ]] ; then # do miniperl on HOST ./Configure -des -D prefix=./dummy -Dusedevel make miniperl @@ -57,10 +58,8 @@ PERL_CONFIG_SH=Cross/config-${CROSS_NAME}.sh rm cflags-cross-$CROSS_NAME cp Cross/cflags-cross-$CROSS_NAME . rm Makefile-cross-$CROSS_NAME -sh Cross/Makefile-cross.SH +sh Cross/Makefile-cross-SH cp Cross/Makefile-cross-$CROSS_NAME . -# makefile hack-patching TODO generation from Makefile.SH -#./miniperl -pi.bak -w0777ne "s{^(CCCMD.*?)cflags}{\$1cflags-cross-$CROSS_NAME}gm" Makefile-cross-$CROSS_NAME mkdir xlib mkdir xlib/$CROSS_NAME diff --git a/MANIFEST b/MANIFEST index fcdb71c..194ec52 100644 --- a/MANIFEST +++ b/MANIFEST @@ -36,6 +36,7 @@ Cross/Makefile.SH.patch Cross-compilation Cross/Makefile-cross-SH Cross-compilation Cross/cflags-cross-arm Cross-compilation Cross/README Cross-compilation +Cross/README.new Cross-compilation Cross/TODO Cross-compilation Cross/warp Cross-compilation cv.h Code value header diff --git a/README.ce b/README.ce index 5d338c8..25cef84 100644 --- a/README.ce +++ b/README.ce @@ -39,7 +39,7 @@ File C is dead simple: for given cross-architecture places in @INC a path where perl modules are, and right C in that place. That said, C should report an error, because -it can not find C. If it does not gives an error -- wrong C +it can not find C. If it does not give an error -- wrong C is substituted, and resulting binaries will be a mess. C should run okay, and it will provide right diff --git a/win32/Makefile.ce b/win32/Makefile.ce index c7b5a50..7503656 100644 --- a/win32/Makefile.ce +++ b/win32/Makefile.ce @@ -710,7 +710,7 @@ all: hostminiperl $(MINIMOD) $(CONFIGPM) $(UNIDATAFILES) $(PERLEXE) MakePPPort E $(DYNALOADER)$(o) : $(DYNALOADER).c xconfig.h $(EXTDIR)\DynaLoader\dlutils.c -$(CONFIGPM) : $(HPERL) ..\config.sh config_h.PL ..\minimod.pl +$(CONFIGPM) : $(HPERL) ..\config.sh .\xconfig.h config_h.PL ..\minimod.pl cd .. && $(HPERL) configpm --cross=$(CROSS_NAME) --no-glossary -mkdir $(XCOREDIR) $(XCOPY) ..\*.h $(XCOREDIR)\*.* @@ -718,12 +718,12 @@ $(CONFIGPM) : $(HPERL) ..\config.sh config_h.PL ..\minimod.pl $(XCOPY) *.h $(XCOREDIR)\*.* $(XCOPY) ..\ext\re\re.pm $(LIBDIR)\*.* $(RCOPY) include $(XCOREDIR)\*.* - -$(HPERL) -I..\lib -MCross=$(CROSS_NAME) config_h.PL "INST_VER=$(INST_VER)" "CORE_DIR=$(XCOREDIR)" "CONFIG_H=xconfig.h" - $(XCOPY) xconfig.h $(XCOREDIR)\config.h .\xconfig.h: -del /f xconfig.h - copy config_H.ce xconfig.h + -mkdir $(XCOREDIR) + -$(HPERL) -I..\lib -MCross=$(CROSS_NAME) config_h.PL "INST_VER=$(INST_VER)" "CORE_DIR=$(XCOREDIR)" "CONFIG_H=xconfig.h" + $(XCOPY) xconfig.h $(XCOREDIR)\config.h ..\config.sh: config.ce config_sh.PL $(HPERL) -I..\lib -I. config_sh.PL $(CFG_VARS) config.ce > ..\config.sh