[PATCH 0/6] semihosting: extend support for ARM64, console

[Ahmad Fatoum]

So far, we limited semihosting support to 32-bit ARM, but it's also
usable on ARM64 and even RISC-V.

This series does the first step by making it compile for ARM64 and also
adds DEBUG_LL and console drivers.

Ahmad Fatoum (6):
  ARM: lib32: semihosting: prepare for more general use
  firmware: semihosting: add ARMv8-A semihosting support
  firmware: semihosting: don't return error code from writec/write0
  firmware: semihosting: translate return values in wrappers
  ARM: semihosting: add DEBUG_LL implementation
  serial: add semihosting console

 arch/arm/Kconfig                              |  2 +-
 arch/arm/cpu/Makefile                         |  2 +
 .../semihosting-trap_32.S}                    |  2 +-
 arch/arm/cpu/semihosting-trap_64.S            | 10 ++
 arch/arm/include/asm/debug_ll.h               |  4 +
 arch/arm/include/asm/semihosting.h            | 47 ++++++---
 arch/arm/lib32/Makefile                       |  1 -
 common/Kconfig.debug_ll                       | 13 +++
 drivers/firmware/Kconfig                      |  4 +
 drivers/firmware/Makefile                     |  1 +
 .../lib32 => drivers/firmware}/semihosting.c  | 99 ++++++++++---------
 drivers/serial/Kconfig                        |  8 ++
 drivers/serial/Makefile                       |  1 +
 drivers/serial/serial_semihosting.c           | 44 +++++++++
 fs/Kconfig                                    |  2 +-
 fs/smhfs.c                                    | 37 +++----
 include/asm-generic/semihosting.h             | 23 +++++
 include/debug_ll/semihosting.h                | 15 +++
 18 files changed, 227 insertions(+), 88 deletions(-)
 rename arch/arm/{lib32/semihosting-trap.S => cpu/semihosting-trap_32.S} (84%)
 create mode 100644 arch/arm/cpu/semihosting-trap_64.S
 rename {arch/arm/lib32 => drivers/firmware}/semihosting.c (64%)
 create mode 100644 drivers/serial/serial_semihosting.c
 create mode 100644 include/asm-generic/semihosting.h
 create mode 100644 include/debug_ll/semihosting.h

-- 
2.39.2