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Re: Help with cfi markup for MIPS16 hard-float stubs

From: Tom Tromey <tromey at redhat dot com>
To: Richard Henderson <rth at redhat dot com>
Cc: gcc at gcc dot gnu dot org, rdsandiford at googlemail dot com
Date: Thu, 16 Feb 2012 14:08:41 -0700
Subject: Re: Help with cfi markup for MIPS16 hard-float stubs
References: <878vk327rw.fsf@talisman.home> <4F3C1CDF.4080508@redhat.com> <87sjiar4fx.fsf@talisman.home> <4F3D53ED.1030502@redhat.com> <87ipj6r2yb.fsf@talisman.home> <4F3D5F09.8010405@redhat.com>

>>>>> "rth" == Richard Henderson <rth@redhat.com> writes:

rth> Oh, of course.  GDB is seeing the sequence of CFA's:
rth> 	X	foo
rth> 	X-4	__mips16_call_stub_df_0
rth> 	X	caller
rth> and it is sanity checking the stack is monotonic.
rth> Which seems like a fairly reasonable thing to do...

Removing this check has been discussed more than once, most recently to
support Go.  I'm not sure why it hasn't been deleted yet.

Tom

References:
- Help with cfi markup for MIPS16 hard-float stubs
  - From: Richard Sandiford
- Re: Help with cfi markup for MIPS16 hard-float stubs
  - From: Richard Henderson
- Re: Help with cfi markup for MIPS16 hard-float stubs
  - From: Richard Sandiford
- Re: Help with cfi markup for MIPS16 hard-float stubs
  - From: Richard Henderson
- Re: Help with cfi markup for MIPS16 hard-float stubs
  - From: Richard Sandiford
- Re: Help with cfi markup for MIPS16 hard-float stubs
  - From: Richard Henderson

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