This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [testsuite] (committed) provide access to flags for current test
On Wed, 2009-01-07 at 11:39 -0800, H.J. Lu wrote:
> On Wed, Jan 7, 2009 at 10:34 AM, Janis Johnson <janis187@us.ibm.com> wrote:
> > This patch consolidates read accesses of dg-test local variables
> > dg-extra-tool-flags (set from default flags or dg-options) and
> > tool_flags (set from torture options) so that not as many procedures in
> > lib/target-supports-dg.exp need to use upvar to get to them. More
> > importantly, it makes those options available to more places in the
> > testsuite framework, such as for effective-target keywords that don't
> > cache their results. Furthermore, the places that need access to the
> > current test options don't need to know how may stack frames they are
> > away from dg-test.
> >
> > The patch was written in response to requests from Joel Sherrill, who
> > wants a way to skip a test if the options passed by dg-options are
> > overridden by flags from the target board or by options passed via
> > RUNTESTFLAGS. Richard Sandiford recently reorganized gcc.target/mips to
> > solve the problem in a different way, which is more elegant but also
> > more work.
> >
> > Tested by running all tests for all languages but Ada on powerpc64-linux
> > with -m32/-m64, and running gcc.test-framework. Checked in on mainline.
> >
> >
>
> Hi Janis,
>
> Is there a way to preppend extra options to CFLAGS for a target board?
> Right now, I have
>
> set_board_info cflags "-mavx -Wa,-msse-check=error"
>
> It appends "-mavx -Wa,-msse-check=error" to CFLAGS and overrides
> -mXXX specified in the tests. I'd like to avoid it.
Flags defined in CFLAGS_FOR_TARGET are at the beginning of the command
line options for GCC tests. You can add a line at the end of file
gcc/site.exp in the build directory defining it, e.g.
set CFLAGS_FOR_TARGET "-g"
Those are followed by torture options, defaults for the .exp or else
dg-options, and multilib flags, with some other board info flags in
between.
Take a look at Richard Sandiford's support in gcc.target/mips for
amazing ways to handle options for a particular architecture.
Janis