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c++/2986: __builtin_frame_address broken for MIPS



>Number:         2986
>Category:       c++
>Synopsis:       __builtin_frame_address broken for MIPS
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue May 29 00:16:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Ronald Fischer
>Release:        gcc 2.95.2
>Organization:
>Environment:
MIPS R4000, SVR4.2
>Description:
__builtin_frame_address returns 0, even if it is called with 0 as argument
(according to the info pages, __builtin_frame_address(LEVEL)
should work on all platforms, as long as LEVEL equals zero).
>How-To-Repeat:
Compile and run the enclosed program on a MIPS R4000 machine, 
e.g. 
  g++ bfa.cc && a.out
and you will get the following output:

main:0
f:0
g:0
h:0
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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