[Crash-utility] ARM and X86 eppic.so builds from X86_64 host

> ----- Original Message ----- >> >> >> ----- Original Message ----- >> > Hi, >> > >> > Here's an alternative patch for your consideration, which makes it >> > possible to point to e.g. a local eppic git. >> > >> > It also builds ARM with '-m32'. This change is not enough to achieve >> > that however. Similar tweaks are needed in eppic itself. >> > >> > Regards, >> > Per >> >> Per, >> >> Sorry I got to Cliff's patch before yours -- so can you rework >> your patch using the version of eppic.mk that is attached to: >> >> Re: [Crash-utility] [PATCH] allow various git command locations >> https://www.redhat.com/archives/crash-utility/2012-August/msg00012.html >> >> Thanks, >> Dave > > OK, I've shoehorned the EPPIC_GIT_URL environment variable check > into eppic.mk. > Sorry I took so long. Vacation... =o) So, you already put it in there? Thanks. > But for now I'm leaving out your -m32 addition for ARM builds > until there's a complete solution for ARM. Note that when I > put the -m32 patch in place, the compile fails when building > ARM on an x86_64 host: > > gcc -g -I.. -Ieppic/libeppic -I../gdb-7.3.1/bfd > -I../gdb-7.3.1/include -I../gdb-7.3.1/gdb > -I../gdb-7.3.1/gdb/config -I../gdb-7.3.1/gdb/common -I../gdb-7.3.1 > -nostartfiles -shared -rdynamic -o eppic.so > eppic/applications/crash/eppic.c -fPIC -DARM -m32 -DGDB_7_3_1 > -Leppic/libeppic -leppic > eppic/applications/crash/eppic.c: In function ‘apigetval’: > eppic/applications/crash/eppic.c:474: warning: cast from pointer to > integer of different size > /usr/bin/ld: skipping incompatible eppic/libeppic/libeppic.a when > searching for -leppic > /usr/bin/ld: cannot find -leppic > collect2: ld returned 1 exit status > make[4]: [eppic.so] Error 1 (ignored) > > whereas without the -m32 at least it builds something (albeit > probably useless). > I think we might have a catch 22 on our hands. The reason it fails is that the eppic library doesn't get built with -m32, but if we start by modifying the eppic git the build will fail because eppic is 32 bit and the crash extension is 64 bit. I've attached the change I made to the eppic git. /Per