Re: [patch] New testcase for PR:1291

["Kris Warkentin" <kewarken at qnx dot com>]

You'll have to explain that to me a bit better.  KFAIL?  Does that mean I
leave the test as is and mark it as an expected failure somehow?  Or do I
modify the test and make a note?

cheers,

Kris

----- Original Message ----- 
From: "Elena Zannoni" <ezannoni@redhat.com>
To: "Kris Warkentin" <kewarken@qnx.com>
Cc: "Michael Elizabeth Chastain" <mec@shout.net>; <drow@mvista.com>;
<gdb-patches@sources.redhat.com>
Sent: Tuesday, October 28, 2003 11:02 AM
Subject: Re: [patch] New testcase for PR:1291


> Kris Warkentin writes:
>  > > > A) move it and make it generic.
>  > > > B) leave it and write it in assembly.
>  > >
>  > > I like (B) better.  The backtrace code is all about specific
>  > > assembly instructions.  So I'd like it better in the style of the
i386
>  > > prologue tests, with explicit assembly.
>  > >
>  > > Michael C
>  >
>  > Okay so this bit of assembly adequately demonstrates the problem.
There is
>  > a bit of an issue here though that perhaps some sh4 expert can clear up
for
>  > me.  If I run this and go "until sub2", it stops on sub2 and works
fine.
>  > If, however, I go "until sub1", followed by "until sub2", it stops a
couple
>  > instructions before sub2 and I have to 'si' into it.  I can modify the
test
>  > case to not bother checking sub1 (since we know it's okay anyway) but
I'm
>  > still puzzled as to why this is having the problem.
>  >
>  > cheers,
>  >
>  > Kris
>  >
>
> Ok.  Not sure why that happens. It defeinitely seems like a bug. File
> a pr, and KFAIL it in the testsuite, with the pr number.
>
> elena
>
>
>  >
>  > void sub1 (void);
>  > void sub2 (void);
>  >
>  > main()
>  > {
>  >         sub1();
>  >         sub2();
>  > }
>  >
>  > asm(".text\n"
>  >     "    .align 5\n"
>  >     "sub1:\n"
>  >     "    mov.l  r14,@-r15\n"
>  >     "    add    #-128,r15\n"
>  >     "    add    #-128,r15\n"
>  >     "    mov    r15,r14\n"
>  >     "    mov.w  .STACK1,r7\n"
>  >     "    add    r7,r14\n"
>  >     "    mov    r14,r15\n"
>  >     "    mov.l  @r15+,r14\n"
>  >     "    rts\n"
>  >     "    nop\n"
>  >     "    .align 1\n"
>  >     ".STACK1:\n"
>  >     "    .short  256\n");
>  >
>  > asm(".text\n"
>  >     "    .align 5\n"
>  >     "sub2:\n"
>  >     "    mov.l  r14,@-r15\n"
>  >     "    mov.w  .STACK2,r3\n"
>  >     "    sub    r3,r15\n"
>  >     "    mov    r15,r14\n"
>  >     "    mov.w  .STACK2,r7\n"
>  >     "    add    r7,r14\n"
>  >     "    mov    r14,r15\n"
>  >     "    mov.l  @r15+,r14\n"
>  >     "    rts\n"
>  >     "    nop\n"
>  >     "    .align 1\n"
>  >     ".STACK2:\n"
>  >     "    .short  260\n");
>  >
>  >
>