Il giorno gio 22 nov 2018 alle ore 01:10 Michele Bucca <michele.bu...@gmail.com> ha scritto: > > Hello There > > I was wondering why there wasn't a regular CLFS book for the ARM > architecture. Yes, we have clfs-embedded but we don't have a regular > CLFS Book. The only architectures supported are x86, x86_64, sparc, > mips, but not ARM. Why? > > Nowadays there are a lot of ARM based Single Board Computers like the > Raspberry Pi so I think that maybe the ARM community would benefit > from a book like this. > > I know that there's a PiLFS project out there, but it's not a book, > rather a set of scripts that build LFS for the RPI. Still it's a > pretty useful resource. > > I'm having trouble building a Cross-compiler for ARMv7 (soft float) > using the latest packages used in LFS-8.3, glibc-2.28. I don't know if > you're interested in helping me with my problem. I Tried to build a > toolchain for ARMv5 (also soft float) and glibc builds fine if I > disable werrors. The toolchain can build several packages such as > busybox, binutils, make, GCC but it fails with *tar*. >
Sorry for my bad writing. As I was saing: I built TWO toolchains with the packages provided by LFS-8.3. Both toolchains seems to have problems with glibc. One toolchain targets ARMv7 (soft floating point), where GLIBC fails to build because of this error: arm-linux-gnueabi-gcc ../sysdeps/arm/crti.S -c -I../include -I/home/michele/x-tools/obj/build.glibc-2.28/csu -I/home/michele/x-tools/obj/build.glibc-2.28 -I../sysdeps/unix/sysv/linux/arm -I../sysdeps/arm/nptl -I../sysdeps/unix/sysv/linux/include -I../sysdeps/unix/sysv/linux -I../sysdeps/nptl -I../sysdeps/pthread -I../sysdeps/gnu -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix/arm -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/arm/nofpu -I../sysdeps/ieee754/soft-fp -I../sysdeps/arm/include -I../sysdeps/arm -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754 -I../sysdeps/generic -I.. -I../libio -I. -D_LIBC_REENTRANT -include /home/michele/x-tools/obj/build.glibc-2.28/libc-modules.h -DMODULE_NAME=libc -include ../include/libc-symbols.h -DTOP_NAMESPACE=glibc -DASSEMBLER -I/home/michele/x-tools/obj/build.glibc-2.28/csu/. -g0 -Werror=undef -Wa,--noexecstack -o /home/michele/x-tools/obj/build.glibc-2.28/csu/crti.o -MD -MP -MF /home/michele/x-tools/obj/build.glibc-2.28/csu/crti.o.dt -MT /home/michele/x-tools/obj/build.glibc-2.28/csu/crti.o ../sysdeps/arm/sysdep.h: Assembler messages: ../sysdeps/arm/sysdep.h:144: Error: selected processor does not support ARM opcodes ../sysdeps/arm/crti.S:64: Error: attempt to use an ARM instruction on a Thumb-only processor -- `ldr r3,.LGOT' ../sysdeps/arm/crti.S:65: Error: attempt to use an ARM instruction on a Thumb-only processor -- `ldr r2,.LGOT+4' ../sysdeps/arm/crti.S:67: Error: attempt to use an ARM instruction on a Thumb-only processor -- `add r3,pc,r3' ../sysdeps/arm/crti.S:68: Error: attempt to use an ARM instruction on a Thumb-only processor -- `ldr r2,[r3,r2]' ../sysdeps/arm/crti.S:69: Error: attempt to use an ARM instruction on a Thumb-only processor -- `cmp r2,#0' ../sysdeps/arm/crti.S:70: Error: attempt to use an ARM instruction on a Thumb-only processor -- `bxeq lr' ../sysdeps/arm/crti.S:71: Error: attempt to use an ARM instruction on a Thumb-only processor -- `b __gmon_start__' ../sysdeps/arm/crti.S:84: Error: attempt to use an ARM instruction on a Thumb-only processor -- `push {r3,lr}' ../sysdeps/arm/crti.S:86: Error: attempt to use an ARM instruction on a Thumb-only processor -- `bl call_weak_fn' ../sysdeps/arm/crti.S:97: Error: attempt to use an ARM instruction on a Thumb-only processor -- `push {r3,lr}' /home/michele/x-tools/obj/build.glibc-2.28/sysd-rules:449: recipe for target '/home/michele/x-tools/obj/build.glibc-2.28/csu/crti.o' failed make[2]: *** [/home/michele/x-tools/obj/build.glibc-2.28/csu/crti.o] Error 1 make[2]: Leaving directory '/home/michele/x-tools/obj/glibc-2.28/csu' Makefile:258: recipe for target 'csu/subdir_lib' failed make[1]: *** [csu/subdir_lib] Error 2 make[1]: Leaving directory '/home/michele/x-tools/obj/glibc-2.28' Makefile:9: recipe for target 'all' failed make: *** [all] Error 2 Then I have another Toolchain for ARMv5, also with soft floating point. Glibc there builds only if I tell it to do not abort the builds when there are warnings (../configure --disable-werror [..]). This toolchain was used to create a chroot: it builds all sort of things such as binutils, gcc, make (only if I patch a file with a sed command), busybox, xz but it fails to build tar with this error CC areadlink-with-size.o In file included from /home/michele/x-tools/arm-linux-gnueabi/arm-linux-gnueabi/include/stdlib.h:1014, from ./stdlib.h:36, from areadlink-with-size.c:28: /home/michele/x-tools/arm-linux-gnueabi/arm-linux-gnueabi/include/bits/stdlib.h: In function ‘wctomb’: /home/michele/x-tools/arm-linux-gnueabi/arm-linux-gnueabi/include/bits/stdlib.h:90:3: error: #error "Assumed value of MB_LEN_MAX wrong" # error "Assumed value of MB_LEN_MAX wrong" ^~~~~ Makefile:1897: recipe for target "areadlink-with-size.o" failed make[4]: *** [areadlink-with-size.o] Error 1 make[4]: uscita dalla directory "/home/michele/tmp/arm-bin/tar-1.30/gnu" Makefile:1922: recipe for target "all-recursive" failed make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory "/home/michele/tmp/arm-bin/tar-1.30/gnu" Makefile:1583: recipe for target "all" failed make[2]: *** [all] Error 2 make[2]: leaving directory "/home/michele/tmp/arm-bin/tar-1.30/gnu" Makefile:1388: recipe for target "all-recursive" failed make[1]: *** [all-recursive] Error 1 make[1]: leaving directory "/home/michele/tmp/arm-bin/tar-1.30" Makefile:1327: recipe for target "all" failed make: *** [all] Error 2 I'm asking for a book for ARM because maybe with that I would be able to build these core packages without all these issues. > If I had a book maybe it would be easier for me to build a working > toolchain without this kind of issues. Let me guess, ARM processors > have too many differences between them and it is difficult to build a > book that works for all of them, right? Let me know what you think. I > really like the ARM architecture and it would be a shame for me to > abandon it. > > Best Wishes > Michele Bucca _______________________________________________ Clfs-dev mailing list Clfs-dev@lists.clfs.org http://lists.clfs.org/listinfo.cgi/clfs-dev-clfs.org