On 26 April 2012 13:58, Mans Rullgard <mans.rullg...@linaro.org> wrote: > On 26 April 2012 02:39, Michael Hope <michael.h...@linaro.org> wrote: >> We use QEMU to test programs built by the toolchain binary release for >> correctness. > > Is that really such a great idea? Qemu is generally less strict than > actual hardware with things like alignment restrictions. This is fine > for running software on a foreign architecture, which is the typical > use case for emulators, and it is much faster than implementing strict > checks for things no correct program should ever do. > > A few years ago, Codesourcery released an ARM compiler, binaries from > which immediately crashed on real hardware. They had only tested the > output in Qemu, never on hardware. Since then, many bugs in Qemu have > been fixed, but I would still not trust it for validating a compiler.
Agreed, but this is more of a final validation and integration test. The same source tarball has been bootstrapped and a range of tests run on real hardware. This is testing that the later binary build builds programs and the programs run. QEMU is fine for a development test. On reflection, not for the final release test. -- Michael _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
