On Mon, 19 Dec 2005, Ingo Molnar wrote:
> +#define atomic_dec_call_if_negative(v, fn_name) \
> +do { \
> + fastcall void (*__tmp)(atomic_t *) = fn_name; \
> + \
> + (void)__tmp; \
> + typecheck(atomic_t *, v); \
> + \
> + __asm__ __volatile__( \
> + LOCK "decl (%%rdi)\n" \
> + "js 2f\n" \
> + "1:\n" \
> + LOCK_SECTION_START("") \
> + "2: call "#fn_name"\n\t" \
> + "jmp 1b\n" \
> + LOCK_SECTION_END \
> + : \
> + :"D" (v) \
> + :"memory"); \
> +} while (0)
Hi Ingo,
Doesn't this corrupt caller saved registers?
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