diff options
| author | Keith Packard <keithp@keithp.com> | 2021-01-08 22:42:52 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2021-01-18 10:05:06 +0000 |
| commit | a10b9d93ecea0a8f01eb6de56274b1bcb101083b (patch) | |
| tree | 24d8b952a691501fa22791881425539e33535d5a /linux-user | |
| parent | 095f8c029319b79cce487e3b566cd826b93da3e6 (diff) | |
riscv: Add semihosting support
Adapt the arm semihosting support code for RISCV. This implementation
is based on the standard for RISC-V semihosting version 0.2 as
documented in
https://github.com/riscv/riscv-semihosting-spec/releases/tag/0.2
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20210107170717.2098982-6-keithp@keithp.com>
Message-Id: <20210108224256.2321-17-alex.bennee@linaro.org>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/qemu.h | 4 | ||||
| -rw-r--r-- | linux-user/semihost.c | 8 |
2 files changed, 7 insertions, 5 deletions
diff --git a/linux-user/qemu.h b/linux-user/qemu.h index 534753ca12..17aa992165 100644 --- a/linux-user/qemu.h +++ b/linux-user/qemu.h @@ -109,6 +109,8 @@ typedef struct TaskState { /* FPA state */ FPA11 fpa; # endif +#endif +#if defined(TARGET_ARM) || defined(TARGET_RISCV) int swi_errno; #endif #if defined(TARGET_I386) && !defined(TARGET_X86_64) @@ -122,7 +124,7 @@ typedef struct TaskState { #ifdef TARGET_M68K abi_ulong tp_value; #endif -#if defined(TARGET_ARM) || defined(TARGET_M68K) +#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_RISCV) /* Extra fields for semihosted binaries. */ abi_ulong heap_base; abi_ulong heap_limit; diff --git a/linux-user/semihost.c b/linux-user/semihost.c index a1f0f6050e..c0015ee7f6 100644 --- a/linux-user/semihost.c +++ b/linux-user/semihost.c @@ -1,11 +1,11 @@ /* - * ARM Semihosting Console Support + * ARM Compatible Semihosting Console Support. * * Copyright (c) 2019 Linaro Ltd * - * Currently ARM is unique in having support for semihosting support - * in linux-user. So for now we implement the common console API but - * just for arm linux-user. + * Currently ARM and RISC-V are unique in having support for + * semihosting support in linux-user. So for now we implement the + * common console API but just for arm and risc-v linux-user. * * SPDX-License-Identifier: GPL-2.0-or-later */ |