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| author | Richard Henderson | 2022-04-28 10:44:28 +0200 |
|---|---|---|
| committer | Richard Henderson | 2022-06-28 01:05:39 +0200 |
| commit | 5b3f39cb04fda32226e84502f858bab06d83e5c1 (patch) | |
| tree | 3e5859fb0f4457ad96b21c76ff53503363fe61d1 /include/semihosting | |
| parent | semihosting: Move GET_ARG/SET_ARG earlier in the file (diff) | |
| download | qemu-5b3f39cb04fda32226e84502f858bab06d83e5c1.tar.gz qemu-5b3f39cb04fda32226e84502f858bab06d83e5c1.tar.xz qemu-5b3f39cb04fda32226e84502f858bab06d83e5c1.zip | |
semihosting: Split out semihost_sys_open
Split out the non-ARM specific portions of SYS_OPEN to a
reusable function. This handles gdb and host file i/o.
Add helpers to validate the length of the filename string.
Prepare for usage by other semihosting by allowing the
filename length parameter to be 0, and calling strlen.
Reviewed-by: Luc Michel <lmichel@kalray.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'include/semihosting')
| -rw-r--r-- | include/semihosting/syscalls.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/semihosting/syscalls.h b/include/semihosting/syscalls.h new file mode 100644 index 0000000000..991658bf79 --- /dev/null +++ b/include/semihosting/syscalls.h @@ -0,0 +1,25 @@ +/* + * Syscall implementations for semihosting. + * + * Copyright (c) 2022 Linaro + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef SEMIHOSTING_SYSCALLS_H +#define SEMIHOSTING_SYSCALLS_H + +/* + * Argument loading from the guest is performed by the caller; + * results are returned via the 'complete' callback. + * + * String operands are in address/len pairs. The len argument may be 0 + * (when the semihosting abi does not already provide the length), + * or non-zero (where it should include the terminating zero). + */ + +void semihost_sys_open(CPUState *cs, gdb_syscall_complete_cb complete, + target_ulong fname, target_ulong fname_len, + int gdb_flags, int mode); + +#endif /* SEMIHOSTING_SYSCALLS_H */ |