The calling convention reserves space for the 8 register parameters on the stack, so using only 6*8=48 as the offset was wrong. We never saw this bug because we don't have any helpers with more than 5 parameters.
Signed-off-by: Richard Henderson <r...@twiddle.net> --- tcg/ppc64/tcg-target.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index c5362da..44abf7b 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -1408,7 +1408,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data_reg, TCGReg addr_reg, /* Parameters for function call generation, used in tcg.c. */ #define TCG_TARGET_STACK_ALIGN 16 -#define TCG_TARGET_CALL_STACK_OFFSET 48 +#define TCG_TARGET_CALL_STACK_OFFSET ((6 + 8) * SZR) #define TCG_TARGET_EXTEND_ARGS 1 #define FRAME_SIZE ((int) \ -- 1.9.3
