[PATCH v3 0/3] Add riscv semihosting support in u-boot

Kautuk Consul
2022-09-19T11:23:03Z

Semihosting is a mechanism that enables code running on
a target to communicate and use the Input/Output
facilities on a host computer that is running a debugger.
This patchset adds support for semihosting in u-boot
for RISCV64 targets.

CHANGES since v2:
- Move the arch/arm/Kconfig common *SEMIHOSTING* config
options from arch/arm/Kconfig to lib/Kconfig.
- Improve the *SEMIHOSTING_FALLBACK config options in
lib/Kconfig to depend on RISCV or ARM64.
- Remove the arch/riscv/include/asm/semhosting.h file.
- Improve the arch/riscv/lib/semihosting.c by removing the
jump statement and moving the .align 4 to before the 2
.option directives.

Kautuk Consul (3):
lib: Add common semihosting library
arch/riscv: add semihosting support for RISC-V
board: qemu-riscv: enable semihosting

arch/arm/Kconfig | 46 -------
arch/arm/lib/semihosting.c | 181 +-------------------------
arch/riscv/include/asm/spl.h | 1 +
arch/riscv/lib/Makefile | 2 +
arch/riscv/lib/interrupts.c | 11 ++
arch/riscv/lib/semihosting.c | 24 ++++
configs/qemu-riscv32_defconfig | 4 +
configs/qemu-riscv32_smode_defconfig | 4 +
configs/qemu-riscv32_spl_defconfig | 7 +
configs/qemu-riscv64_defconfig | 4 +
configs/qemu-riscv64_smode_defconfig | 4 +
configs/qemu-riscv64_spl_defconfig | 7 +
include/semihosting.h | 11 ++
lib/Kconfig | 46 +++++++
lib/Makefile | 2 +
lib/semihosting.c | 186 +++++++++++++++++++++++++++
16 files changed, 314 insertions(+), 226 deletions(-)
create mode 100644 arch/riscv/lib/semihosting.c
create mode 100644 lib/semihosting.c

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2.34.1