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Make Sparc/Solaris work again.

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This commit is contained in:
Kevin Buettner
2003-02-18 22:46:16 +00:00
parent 6a2f5abf07
commit 881324ebbd
3 changed files with 23 additions and 2 deletions
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16
gdb/sparc-tdep.c
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@@ -431,8 +431,20 @@ sparc_frame_chain (struct frame_info *frame)
{
/* Value that will cause FRAME_CHAIN_VALID to not worry about the chain
value. If it really is zero, we detect it later in
sparc_init_prev_frame. */
return (CORE_ADDR) 1;
sparc_init_prev_frame.
Note: kevinb/2003-02-18: The constant 1 used to be returned
here, but, after some recent changes to frame_chain_valid(),
this value is no longer suitable for causing frame_chain_valid()
to "not worry about the chain value." The constant ~0 (i.e,
0xfff...) causes the failing test in frame_chain_valid() to
succeed thus preserving the "not worry" property. I had considered
using something like ``get_frame_base (frame) + 1''. However, I think
a constant value is better, because when debugging this problem,
I knew that something funny was going on as soon as I saw the
constant 1 being used as the frame chain elsewhere in GDB. */
return ~ (CORE_ADDR) 0;
}
CORE_ADDR