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# 08:04:16 Virus_7 Hi guys. I'm trying to make canadian cross tool: x86_64-unknown-linux-gnu -> x86_64-w64-mingw32 -> mipsel-unknown-linux-gnu. I have faced problem with GMP: configure: error: Oops, mp_limb_t is 32 bits, but the assembler code... I have found I need to patch GMP for building mingw-w64 with this: http://garr.dl.sourceforge.net/project/mingw-w64/mingw-
# 08:04:16 Virus_7 w64/Toolchain%20patches/gmp-4.3.2-w64.patch
# 08:04:30 Virus_7 How I should apply the patch?
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# 10:16:40 silviof Hi, I have seen that the 00-LATEST-is entry on http://crosstool-ng.org/download/crosstool-ng/ points to 1.18.
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# 13:14:17 Virus_7 Hi. I'm trying to Build a toolchain for: build = x86_64-unknown-linux-gnu host = x86_64-w64-mingw32 target = mipsel-unknown-linux-gnu
# 13:14:32 Virus_7 I have problems with cross-gdb and expat
# 13:15:05 Virus_7 configure: error: expat is missing or unusable
# 13:15:25 Virus_7 I have already installed libexpat1-dev on my system
# 13:15:58 Virus_7 Do you know how I can workaround this problem?
# 13:28:17 mingwandroid cross-gcc is for the host AFAIK.
# 13:28:39 mingwandroid so you'd need an expat for Windows. The GDB side of things needs some work IMHO ..
# 13:28:53 Virus_7 that's waht i fought
# 13:29:09 mingwandroid Virus_7: Do you need GDB?
# 13:29:11 Virus_7 You think I should compile static expat for windows?
# 13:29:23 Virus_7 Yes I need gdb :)
# 13:30:04 mingwandroid Virus_7: well, if you do, then you need to put it where the x86_64-w64-mingw32 compiler will try to look for it of course (or maybe add extra CFLAGS/LDFLAGS)
# 13:31:41 mingwandroid Virus_7: IMHO crosstool-ng *should* do this for you, so you could try to alter 300-gdb.sh to fix it correctly.
# 13:34:12 Virus_7 is there is config option to enable static expat building?
# 13:34:42 Virus_7
# 13:34:48 Virus_7 So it is building
# 13:34:55 Virus_7 and it takes about 45 minutes
# 13:36:57 mingwandroid Virus_7: http://paste.kde.org/pzpjwdhpx
# 13:37:25 mingwandroid Virus_7: (from 300-gdb.sh) .. here you can see a problem. expat is only needed for native GDB.
# 13:39:49 Virus_7 should I recompile ct-ng afetr changing 300-gdb? or I can just continue with build?
# 13:46:49 y_morin mingwandroid: I am not very fond of adding expat for the host of the toolchain
# 13:47:04 y_morin mingwandroid: Normally, the host libraries should be part of the host "SDK".
# 13:47:27 mingwandroid y_morin: yes, well, Windows doesn't have much of a host SDK of course.
# 13:47:31 y_morin mingwandroid: If we were to build expat for the host, then what would happen if the host later has its own version?
# 13:47:46 mingwandroid y_morin: we're trying to fix that that with MSYS2 ..
# 13:48:06 y_morin mingwandroid: We're speaking about canadian-cross in a generic sense. Windows is only one of the possible hosts.
# 13:48:07 mingwandroid y_morin: for GDB I would tend to stick with static expat and static ncurses on Windows.
# 13:49:22 mingwandroid y_morin: problem as I see it is, you do a canadian build and the build will fail at cross-gdb, then you need to fix up an expat and a ncurses build, then continue the build.
# 13:50:04 mingwandroid y_morin: would static linkage not satisfy your objection?
# 13:50:17 y_morin mingwandroid: There is not much we can do about this. We can not look for mcurses/expat at (ct-ng's) ./configure time, since we don't yet know whether we'll be cros or canadian.
# 13:50:50 y_morin mingwandroid: Static: yes, but it's just weirs that for this host library we build it.
# 13:51:17 y_morin mingwandroid: Note: this is a statement on principle. We can look into it, of course.
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# 17:44:02 Virus_7 @y_morin: FYI I have compiled lipexpat1 and build went further, then there was small problem of lacking include in ser-mingw.c = winsock2.h. After fixing that, the toolset compiled. I will check it tomorrow at work.
# 17:45:32 Virus_7 executables are operational - works on win7 x64
# 17:46:09 Virus_7 What kind of checks do you propose?
# 17:58:17 Virus_7 @mingwandroid what kind of tests i should go with new toolchain?
# 17:58:39 mingwandroid Virus_7: I don't get you?
# 17:59:40 mingwandroid Virus_7: Presumably you have something in mind that you want to cross compile .. I'd cross compile that and see if it works on the target. If that thing has a test-suite then that's a pretty good test.
# 17:59:51 Virus_7 I builded the toolchain which we talked earlier. Is there any tests of toolchain?
# 18:00:20 Virus_7 test-suite? you mean gnu test-suite?
# 18:00:35 mingwandroid there's dejagnu but I've never used it.
# 18:00:57 mingwandroid Virus_7: for what purpose did you build the toolchain?
# 18:02:27 Virus_7 for compiling binaries for mipsel-based 34kf MStar STB
# 18:03:28 Virus_7 we have got mingw32 mips toolchain, but we faced 2GB limit while linking our application (in Debug mode)
# 18:03:50 Virus_7 That's why we need mingw32-w64 mips toolchain
# 18:04:25 Virus_7 maybe I will try to compare binaries which are produced by old toolset
# 18:12:39 mingwandroid indeed.
# 18:12:55 mingwandroid that would be the first thing I would try; then actual product :-)
# 18:12:58 mingwandroid *the
# 18:41:12 Virus_7 I have found another problem, when trying to build static version of cross-gdb:
# 18:41:25 Virus_7 [DEBUG] ==> Executing: 'CC=gcc -static' 'LD=ld -static' '/home/build/temp/mips/.build/src/gdb-6.8a/configure' '--build=x86_64-build_unknown-linux-gnu' '--host=x86_64-host_w64-mingw32' '--target=mipsel-unknown-linux-gnu' '--prefix=/home/build/x-tools/mipsel-unknown-linux-gnu' '--with-build-sysroot=/home/build/x-tools/mipsel-unknown-linux-gnu/mipsel-unknown-linux-gnu/sysroot' '--with-sysroot=/home/build/x-tools/mipsel-unknown-lin
# 18:41:25 Virus_7 ux-gnu/mipsel-unknown-linux-gnu/sysroot' '--disable-werror' '--enable-expat' '--with-expat=yes' '--enable-threads' '--with-python=no' '--disable-sim' '--disable-nls'
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# 18:42:01 Virus_7 So it seems that adding -static word doesnt work as it should
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# 19:57:57 mingwandroid did you configure with --disable-shared --enable-static?
# 20:00:59 Virus_7 i have just copied here what i receive from build.log
# 20:03:18 Virus_7 And i have found that such build doesn't work: gdb enters and goes into (gdb) select: No error. loop. i think i need to debug it
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# 21:12:33 mingwandroid Virus_7: you could use your old GDB? the 32bit one?
# 21:14:15 Virus_7 Propably yes. But I am very curious, why it doesn't work
# 21:15:11 mingwandroid Virus_7: did you use ncurses?
# 21:15:16 Virus_7 How to enable debug symbols in gdb :)
# 21:15:27 mingwandroid CFLAGS="-O0 -ggdb" probably
# 21:15:41 mingwandroid debugging gdb with gdb gets a bit confusing;
# 21:15:59 mingwandroid you can get lost in the martix
# 21:16:43 Virus_7 hmm... ncurses if they are used then some defaults from gcc-mingw32-w64 package in xubuntu
# 22:09:48 Virus_7 building gdb-7.4.1 fixed the problem.
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