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Make Sparc/Solaris work again.

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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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2003-02-18 Kevin Buettner <kevinb@redhat.com>
* sparc-tdep.c (sparc_frame_chain): Adjust return value.
* config/sparc/tm-sparc.h (init_frame_pc_noop): Declare.
2003-02-18 Andrew Cagney <cagney@redhat.com>
* symtab.h (struct objfile): Add opaque declaration.

4
gdb/config/sparc/tm-sparc.h
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@ -511,6 +511,10 @@ extern void sparc_print_extra_frame_info (struct frame_info *);
/* INIT_EXTRA_FRAME_INFO needs the PC to detect flat frames. */
/* NOTE: cagney/2002-12-08: Add local declaration of
init_frame_pc_noop() because it isn't possible to include
"arch-utils.h" here. */
extern CORE_ADDR init_frame_pc_noop (int fromleaf, struct frame_info *prev);
#define DEPRECATED_INIT_FRAME_PC(FROMLEAF, PREV) (init_frame_pc_noop (FROMLEAF, PREV))
#define DEPRECATED_INIT_FRAME_PC_FIRST(FROMLEAF, PREV) \
((FROMLEAF) ? SAVED_PC_AFTER_CALL ((PREV)->next) : \

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