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?
