On 16 aug 2005, at 15:43, Joost van der Sluis wrote:
i'm trying to build fpc 2.0.0 on the Fedora buildsystem, but the build fails for powerpc. The startcompiler gives a segfault.
The reason is probably that the machine you are building on is a G5. For some reason, the Linux kernel people do not turn on a compatibility bit in the G5 which guarantees the same behaviour for the dcbz instruction as on other PPC's (it's meaning is "fill a cache line with zeroes", but cache lines on G5's are 128 bytes as opposed to 32 bytes on other ppc's and many programs, including the FPC rtl, count on that -- which is the reason why this compatibility bit exists and why the G5 also has a dcbzl instruction which zeroes out a full 128 bytes in all cases).
Anyway, the result is that too much memory is zeroed out by some RTL routines. You can solve it by disabling all routines rtl/powerpc/ *.inc which include the dcbz instruction and then rebuilding the compiler on a non-G5 machine.
Jonas _______________________________________________ fpc-devel maillist - [email protected] http://lists.freepascal.org/mailman/listinfo/fpc-devel
