Commit Graph

3 Commits

Author SHA1 Message Date
Nicolas Pitre 90f4f50d4b console: semihosting: add Aarch64 support
This also makes it into arch_printk_char_out() which gets linked
in place of the weak symbol version, meaning printk() is usable
as soon as the stack is set up.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2021-02-24 08:01:18 -05:00
Tomasz Bursztyka e18fcbba5a device: Const-ify all device driver instance pointers
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.

A coccinelle rule is used for this:

@r_const_dev_1
  disable optional_qualifier
@
@@
-struct device *
+const struct device *

@r_const_dev_2
 disable optional_qualifier
@
@@
-struct device * const
+const struct device *

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
ZhongYao Luo 1811fff2dd console: Add semihosting console
Many chips have only one serial port. When the serial port is occupied
by other devices, there is a lack of a console to output debugging
information. Semihosting can provide a console. The disadvantage of
semihosting is that a debugger must be connected, so it can only be
used for online debugging.

Signed-off-by: ZhongYao Luo <LuoZhongYao@gmail.com>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2020-05-07 23:33:38 -05:00