* fixing 'backtrace through sleep' on the cheap
@ 2003-08-04 23:40 Michael Elizabeth Chastain
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From: Michael Elizabeth Chastain @ 2003-08-04 23:40 UTC (permalink / raw)
To: gdb
In a nutshell, the problem is that gdb 6.0 does a lot worse than
gdb 5.3 when it's backtracing through functions with no debug info
and a failed prologue analysis.
I'm about to write a patch for the i386 prologue analyzer so that it
recognizes a few more instructions that are turning up in common
prologues, particularly the code for 'sleep' in glibc 2.2.93-5-rh.
I don't know whether such a patch has any chance of approval.
I'm hoping this message will flush out any disapproval
before the patch plops onto the mailing list.
Elena Z suggested this earlier today, and I think it's the best way
forward since we have a gdb 6.0 release coming shortly.
For gdb 6.1 I agree with Daniel J's suggestion to use the 'abstract
interpretation' machinery in s390-tdep.c.
Michael C
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2003-08-04 23:40 fixing 'backtrace through sleep' on the cheap Michael Elizabeth Chastain
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