semihosting struct

A flag reporting whether semihosting is active.

Semihosting STDIO file descriptors.

Semihosting STDIO file descriptors.

Semihosting STDIO file descriptors.

redirection configuration, NONE by default.

Handle to redirect semihosting print via tcp.

A flag reporting whether semihosting fileio is active.

A flag reporting whether semihosting fileio operation is active.

Most are resumable, except the two exit calls.

When SEMIHOSTING_SYS_EXIT is called outside a debug session, things are simple, the openocd process calls exit() and passes the value returned by the target. When SEMIHOSTING_SYS_EXIT is called during a debug session, by default execution returns to the debugger, leaving the debugger in a HALT state, similar to the state entered when encountering a break. In some use cases, it is useful to have SEMIHOSTING_SYS_EXIT return normally, as any semihosting call, and do not break to the debugger. The standard allows this to happen, but the condition to trigger it is a bit obscure ("by performing an RDI_Execute request or equivalent"). To make the SEMIHOSTING_SYS_EXIT call return normally, enable this variable via the dedicated command (default: disabled).

The Target (hart) word size; 8 for 64-bits targets.

The current semihosting operation (R0 on ARM).

The current semihosting parameter (R1 or ARM).

The current semihosting result to be returned to the application. Usually 0 for success, -1 for error, but sometimes a useful value, even a pointer.

The value to be returned by semihosting SYS_ERRNO request.

The semihosting command line to be passed to the target.

The current time when 'execution starts'.

Base directory for semihosting I/O operations.

Target's extension of semihosting user commands.