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[tcf-dev] Step-over in PPC64 when stopped at the prolog.
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Hi Eugene,
In PPC64, I have the following prolog:
0000000040000220 <main>:
40000220: 3c 40 40 02 lis r2,16386 ==> (CFA == r1)
40000224: 38 42 14 80 addi r2,r2,5248
40000228: 7c 08 02 a6 mflr r0
4000022c: 3d 80 40 02 lis r12,16386
40000230: 39 8c 80 44 addi r12,r12,-32700
40000234: 7d 89 03 a6 mtctr r12
40000238: 4e 80 04 21 bctrl ===> We jump to a routine that
will save the registers ! See <_savegpr0_31> below.
4000023c: f8 21 ff 61 stdu r1,-160(r1) ==> Stack
pointer gets adjusted HERE....
40000240: 90 61 00 64 stw r3,100(r1)
40000244: f8 81 00 68 std r4,104(r1)
40000248: f8 a1 00 70 std r5,112(r1)
4000024c: e8 01 00 66 lwa r0,100(r1)
40000250: 2c 00 00 02 cmpwi r0,2
0000000040018044 <_savegpr0_31>:
40018044: fb e1 ff f8 std r31,-8(r1) ==> (CFA == r1)
40018048: f8 01 00 10 std r0,16(r1)
4001804c: 4e 80 00 20 blr
As you can see, in <_savegpr0_31> CFA callee == CFA caller (main).
So a step-over in the main prolog does a step-into !
What's the best way to address this issue ?
Many thanks !
Xavier.
