I'm trying build xen in 32bit system with 64 bit kernel booted (ia32 emulation), but it fails with errors: # emerge xen Calculating dependencies... done! >>> Emerging (1 of 1) app-emulation/xen-3.0.2 to / >>> checking ebuild checksums ;-) >>> checking auxfile checksums ;-) >>> checking miscfile checksums ;-) >>> checking xen-3.0.2-src.tgz ;-) >>> Unpacking source... >>> Unpacking xen-3.0.2-src.tgz to /var/tmp/portage/xen-3.0.2/work >>> Source unpacked. >>> Compiling source in /var/tmp/portage/xen-3.0.2/work/xen-3.0.2 ... make: Entering directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen' make -C tools make[1]: Entering directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/tools' make -C figlet make[2]: Entering directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/tools/figlet' gcc -o figlet figlet.c make[2]: Leaving directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/tools/figlet' make symbols make[2]: Entering directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/tools' gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer -Wdeclaration-after-statement -o symbols symbols.c make[2]: Leaving directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/tools' make[1]: Leaving directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/tools' make include/xen/compile.h make[1]: Entering directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen' tools/figlet/figlet -d tools/figlet Xen 3.0.2 > include/xen/banner.h.new __ __ _____ ___ ____ \ \/ /___ _ __ |___ / / _ \ |___ \ \ // _ \ '_ \ |_ \| | | | __) | / \ __/ | | | ___) | |_| | / __/ /_/\_\___|_| |_| |____(_)___(_)_____| make[1]: Leaving directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen' make include/xen/acm_policy.h make[1]: Entering directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen' make[1]: Leaving directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen' [ -e include/asm ] || ln -sf asm-x86 include/asm make -C arch/x86 asm-offsets.s make[1]: Entering directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/arch/x86' gcc -O2 -fomit-frame-pointer -DNDEBUG -m64 -Wall -Wstrict-prototypes -Wdeclaration-after-statement -nostdinc -fno-builtin -fno-common -fno-strict-aliasing -iwithprefix include -Werror -Wno-pointer-arith -pipe -I/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/include -I/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/include/asm-x86/mach-generic -I/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/include/asm-x86/mach-default -msoft-float -mno-red-zone -fpic -fno-reorder-blocks -fno-asynchronous-unwind-tables -g -D__XEN__ -S -o asm-offsets.s x86_64/asm-offsets.c x86_64/asm-offsets.c:1: sorry, unimplemented: 64-bit mode not compiled in x86_64/asm-offsets.c: In function `__dummy__': x86_64/asm-offsets.c:29: error: structure has no member named `r15' x86_64/asm-offsets.c:30: error: structure has no member named `r14' x86_64/asm-offsets.c:31: error: structure has no member named `r13' x86_64/asm-offsets.c:32: error: structure has no member named `r12' x86_64/asm-offsets.c:33: error: structure has no member named `rbp' x86_64/asm-offsets.c:34: error: structure has no member named `rbx' x86_64/asm-offsets.c:35: error: structure has no member named `r11' x86_64/asm-offsets.c:36: error: structure has no member named `r10' x86_64/asm-offsets.c:37: error: structure has no member named `r9' x86_64/asm-offsets.c:38: error: structure has no member named `r8' x86_64/asm-offsets.c:39: error: structure has no member named `rax' x86_64/asm-offsets.c:40: error: structure has no member named `rcx' x86_64/asm-offsets.c:41: error: structure has no member named `rdx' x86_64/asm-offsets.c:42: error: structure has no member named `rsi' x86_64/asm-offsets.c:43: error: structure has no member named `rdi' x86_64/asm-offsets.c:46: error: structure has no member named `rip' x86_64/asm-offsets.c:49: error: structure has no member named `rsp' x86_64/asm-offsets.c:63: error: structure has no member named `syscall_callback_eip' make[1]: *** [asm-offsets.s] Error 1 make[1]: Leaving directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/arch/x86' make: *** [/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen/xen] Error 2 make: Leaving directory `/var/tmp/portage/xen-3.0.2/work/xen-3.0.2/xen' !!! ERROR: app-emulation/xen-3.0.2 failed. Call stack: ebuild.sh, line 1539: Called dyn_compile ebuild.sh, line 939: Called src_compile xen-3.0.2.ebuild, line 60: Called die command: # XEN_TARGET_ARCH="x86_32" emerge xen solves this problem
xen-tools have the same problem
Sven, are you in a position to duplicate this with your amd64 hardware? I only have x86.
Sure, I just need to set up a 32bit domain, but I'm pretty sure I don't need to do it. The xen packages use uname -m to find the architecture, which in case of a 64bit kernel will be x86_64, for which a 32bit system can't compile code. Pretty simple and straightforward fix is to force XEN_TARGET_ARCH to the correct value, as tonich did on the command line. I'm thinking about code like the following: --- xen-3.0.2.ebuild.orig 2006-08-16 06:48:16.000000000 +0000 +++ xen-3.0.2.ebuild 2006-08-16 07:03:36.000000000 +0000 @@ -25,6 +25,21 @@ RESTRICT="test" +pkg_setup() { + if [[ -z ${XEN_TARGET_ARCH} ]] + then + if use x86 + then + export XEN_TARGET_ARCH="x86_32" + elif use amd64 + then + export XEN_TARGET_ARCH="x86_64" + else + die "Unsupported architecture!" + fi + fi +} + src_unpack() { unpack ${A} # if the user *really* wants to use their own custom-cflags, let them Another thing might be to integrate complete cross-compile support into the packages. I haven't tried to cross-compile the beast on x86 for amd64, which might be worth a shot.
Fixed in app-emulation/xen-3.0.2 without a bump, since the other change intended for -r1 (#147876) was scrapped.
Fixed in app-emulation/xen-tools-3.0.2-r4, thanks.
