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Re: [PATCH] testsuite: let find_gdbserver call which before return ""


On 03/29/2012 06:09 AM, Hui Zhu wrote:

> Hi,
> 
> I got some trouble with testsuite about gdbserver for example:
> make check RUNTESTFLAGS="server-run.exp"


This should work fine in the case the tests were designed for.  To test against
the gdbserver that has just been built along the native debugger, under
the build/gdb/gdbserver/ directory.

Most of these tests are in my TODO for removal/rewriting/moving elsewhere
actually.  The ones that remain, should be converted to run only when testing
against gdbserver, instead of spawning gdbserver when testing the native target.

> It will not works because testsuite cannot get gdbserver from find_gdbserver.
> In the find_gdbserver, we can find that if didn't find gdbserver from GDBSERVER or gdb_server_prog, it will:


So set GDBSERVER or gdb_server_prog.

>   set gdbserver "${GDB}server"
>   if { [file isdirectory $gdbserver] } {
>     append gdbserver "/gdbserver"
>   }
> 
>   if { [file executable $gdbserver] } {
>     return $gdbserver
>   }
> 
> But file executable just check the gdbserver in current work directory.  


No.  ${GDB} points at the built gdb binary.  So ${GDB}server points at
the gdbserver build directory.  In that case, when gdbserver is built along
gdb, ${GDB}server/gdbserver will point at the gdbserver binary.

So it will return "".
> 
> The attachment is a patch that add some code that call "which $gdbserver" after this part.  If the reply include $gdbserver and it is executable, return it.  Then make check RUNTESTFLAGS="server-run.exp" can work OK now.


NAK.  This will end up picking the system installed gdbserver that happens
to be in the path.  Not what you normally want to test.

-- 
Pedro Alves


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