On Thu, Jan 21, 2016 at 12:37:42PM +0100, Thomas Monjalon wrote:
> 2016-01-19 16:12, Yuanhan Liu:
> > +#define IO_READ_DEF(nr_bits, type) \
> > +static inline type \
> > +io_read##nr_bits(type *addr) \
> > +{ \
> > + return *(volatile type *)addr; \
> > +}
> > +
> > +#define IO_WRITE_DEF(nr_bits, type) \
> > +static inline void \
> > +io_write##nr_bits(type val, type *addr) \
> > +{ \
> > + *(volatile type *)addr = val; \
> > +}
> > +
> > +IO_READ_DEF (8, uint8_t)
> > +IO_WRITE_DEF(8, uint8_t)
> > +
> > +IO_READ_DEF (16, uint16_t)
> > +IO_WRITE_DEF(16, uint16_t)
> > +
> > +IO_READ_DEF (32, uint32_t)
> > +IO_WRITE_DEF(32, uint32_t)
>
> Yes you can do this.
> But not sure you should.
>
> > +static inline void
> > +io_write64_twopart(uint64_t val, uint32_t *lo, uint32_t *hi)
> > +{
> > + io_write32(val & ((1ULL << 32) - 1), lo);
> > + io_write32(val >> 32, hi);
> > +}
>
> When debugging this code, how GDB behave?
> How to find the definition of io_write32() with grep or simple editors?
Okay, I will unfold them.
--yliu
