Re: [Qemu-devel] [PATCH v2 0/2] acpi unit-test: rebuild aml files functionality

[Marcel Apfelbaum <marcel.a@redhat.com>]

On Thu, 2013-12-26 at 15:53 +0200, Michael S. Tsirkin wrote:
> On Thu, Dec 26, 2013 at 03:24:28PM +0200, Marcel Apfelbaum wrote:
> > On Thu, 2013-12-26 at 14:46 +0200, Michael S. Tsirkin wrote:
> > > On Thu, Dec 26, 2013 at 02:19:48PM +0200, Marcel Apfelbaum wrote:
> > > > Acpi unit-test will fail every time the acpi tables change.
> > > > 
> > > > The series adds a script that rebuilds the expected aml files, so the test
> > > > will pass. It also validates the modifications.
> > > > 
> > > > The acpi unit test will rebuild the aml tables if TEST_ACPI_REBUILD_AML
> > > > environment variable is set.
> > > 
> > > OK I had to fix some trailing whitespace, otherwise
> > > looks good.
> > > I applied it all, pls check the pci branch.
> > Thanks!
> > I pulled the pci branch, but I did not see the patches yet. 
> > I used git://git.kernel.org/pub/scm/virt/kvm/mst/qemu.git,
> > pci branch.
> > 
> > Thanks,
> > Marcel
> 
> 
> Actually had to revert. Build fails with recent gcc:
Strange, I update the gcc to the Fedora's latest 4.8.2 and
it still doesn't happen.
Anyway, I use qemu_write_full as advised and resent.

Thanks,
Marcel

> 
> ests/acpi-test.c: In function ‘dump_aml_files’:
> tests/acpi-test.c:392:14: error: ignoring return value of ‘write’,
> declared with attribute warn_unused_result [-Werror=unused-result]
>          write(fd, sdt, sizeof(AcpiTableHeader));
>               ^
> tests/acpi-test.c:393:14: error: ignoring return value of ‘write’,
> declared with attribute warn_unused_result [-Werror=unused-result]
>          write(fd, sdt->aml, sdt->aml_len);
>               ^
> cc1: all warnings being treated as errors
> make: *** [tests/acpi-test.o] Error 1
> 
> and it's true: you need to wrap write in a loop as it can
> write less than requested number of bytes.
> See qemu_write_full - can it be used it tests?
> 
> > > > v1 -> v2:
> > > > Addressed Michael S. Tsirkin's comments:
> > > >  - added TEST_ prefix to the environment variable
> > > >  - some rephrases
> > > > 
> > > > Marcel Apfelbaum (2):
> > > >   acpi unit-test: added script to rebuild the expected aml files
> > > >   acpi unit-test: hook to rebuild expected aml files
> > > > 
> > > >  tests/acpi-test-data/rebuild-expected-aml.sh | 36 ++++++++++++++++++++++++++++
> > > >  tests/acpi-test.c                            | 30 +++++++++++++++++++----
> > > >  2 files changed, 61 insertions(+), 5 deletions(-)
> > > >  create mode 100755 tests/acpi-test-data/rebuild-expected-aml.sh
> > > > 
> > > > -- 
> > > > 1.8.3.1
> > > 
> > 
> >