Comments (6)
syscall normally return the number of bytes that are not written
semihosting_write in opensbi normally return the number of bytes that has been written
semihosting_puts in opensbi normally return the number of bytes that has been written
Regards,
Xiang W
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In linux, the syscall write returns the true length it writes.
I don't know why there is a difference in the implementation of openocd.
from opensbi.
I'm using the cklink from t-head to debug a riscv core C908. Its implementation complys with the convention of linux write
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Its implementation complys with the convention of linux write
opensbi not running on linux. It running on debugger. You need to know how this debugger implements syscall. Like this: https://github.com/openocd-org/openocd/blob/master/src/target/semihosting_common.c#L1365
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You can download the latest XuanTie Debug Server from https://www.xrvm.cn/ and add the -ls
parameter at startup to use semihosting, such as # DebugServerConsole - prereset - ls
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XuanTie implements a strange SYS_WRITE. Is this weird stuff going to spread to all software?
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