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pa.h (DEBUGGER_AUTO_OFFSET): Define.

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* pa.h (DEBUGGER_AUTO_OFFSET): Define.  If no frame pointer
	is available, then adjust the offset by the size of the current
	frame.

From-SVN: r7509
This commit is contained in:
Jeff Law 1994-06-16 23:43:06 -06:00
parent 51783c1428
commit 2e7e71216f
1 changed files with 17 additions and 0 deletions
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17
gcc/config/pa/pa.h
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@ -138,6 +138,23 @@ extern int target_flags;
#define ASM_STABS_OP "\t.stabs"
#define ASM_STABN_OP "\t.stabn"
/* GDB always assumes the current function's frame begins at the value
of the stack pointer upon entry to the current function. Accessing
local variables is done using the base of the frame + an offset
provided by GCC.
For functions which have frame pointers this method works fine;
the (frame pointer) == (stack pointer at function entry) and GCC provides
an offset relative to the frame pointer.
This loses for functions without a frame pointer; GCC provides an offset
which is relative to the stack pointer after adjusting for the function's
frame size. GDB would prefer the offset to be relative to the value of
the stack pointer at the function's entry. Yuk! */
#define DEBUGGER_AUTO_OFFSET(X) \
((GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0) \
+ (frame_pointer_needed ? 0 : compute_frame_size (get_frame_size (), 0)))
#if (TARGET_DEFAULT & 1) == 0
#define CPP_SPEC "%{msnake:-D__hp9000s700 -D_PA_RISC1_1}\
%{mpa-risc-1-1:-D__hp9000s700 -D_PA_RISC1_1}"