Am 12.09.2012 23:18, schrieb Peter Maydell:
On 12 September 2012 21:44, Stefan Weil <s...@weilnetz.de> wrote:
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -75,9 +75,7 @@ static const int tcg_target_call_iarg_regs[] = {
TCG_REG_R8,
TCG_REG_R9,
#else
- TCG_REG_EAX,
- TCG_REG_EDX,
- TCG_REG_ECX
+ /* 32 bit mode uses stack based calling convention (GCC default). */
#endif
};
This makes the array zero-length for 32 bit targets, but functions
like tcg_out_tlb_load() and tcg_out_qemu_ld() still unconditionally
access elements in it...
-- PMM
Thanks for the hint. I'm afraid there are a lot more functions
of that kind in i386/tcg-target.c.
I could use conditional compilation for those accesses,
but first I'd like to understand why this works at all.
- sw
