Am Donnerstag, 19. Dezember 2024, 21:57:15 Mitteleuropäische Normalzeit schrieb shtps via Gforth discussion and announcements: > Hello > > I am unable to build gforth-0.7.9_20241211 on GNU/Linux (Debian 12) with a > Samsung's Exynos 5422 8-core 32bit ARMv7 CPU. > > $ uname -a > Linux odroid 6.3.1-armmp-lpae #exynos5 SMP PREEMPT Mon May 8 15:27:00 UTC > 2023 armv7l GNU/Linux > > I've followed the instructions in INSTALL.md for the tarball build with the > default options. ./configure succeeds but make fails with: > > make[1]: Entering directory '/home/shtps/gforth-0.7.9_20241211/engine' > CC -o io.o io.c > cc1: error: ‘-mfloat-abi=hard’: selected architecture lacks an FPU > make[1]: *** [Makefile:142: io.o] Error 1 > make[1]: Leaving directory '/home/shtps/gforth-0.7.9_20241211/engine' > make: *** [Makefile:1457: engine/io.o] Error 2 > > I've attempted to solve this by modifying configure.ac. I've changed the > $host_cpu switch statement with the CFLAGS for gnueabihf from > > CFLAGS="$CFLAGS -marm -march=armv6" > > to > > CFLAGS="$CFLAGS -mcpu=generic-armv7-a" > > With this I was able to get it to proceed the build, however I now get a > segfault during what seems to be the image generation for gforth-light.fi. > I also tried various other flags, like -mcpu=native and various flags with > and without hard floating point and also soft floating point. If the build > proceeds without compiler errors the same image generation part always > segfaults. > > Attached you will find the logs for both the defaults and with my custom > CFLAGS listed above. > > Any idea what the issue may be?
From the configure script, which modifies the CFLAGS for Android (but not Linux), I would suggest: CFLAGS="$CFLAGS -march=armv7-a -mfloat-abi=softfp -mfpu=vfp" This works on a wide range of Android phone CPUs, of which that Exynos is one. That snapshot (20241211) had a problem with an uninitialized variable, so try the latest one (20241218). -- Bernd Paysan "If you want it done right, you have to do it yourself" net2o id: kQusJzA;7*?t=uy@X}1GWr!+0qqp_Cn176t4(dQ* https://net2o.de/
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