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doc: arch: semihost: Add Xtensa support

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Add information about Xtensa semihosting.

Signed-off-by: Tahsin Mutlugun <Tahsin.Mutlugun@analog.com>
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Tahsin Mutlugun 2025-06-18 15:36:38 +03:00 • committed by Benjamin Cabé
commit b9bfff29f4
1 changed files with 7 additions and 3 deletions
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doc/hardware/arch/semihost.rst
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@ -6,9 +6,9 @@ Semihosting Guide
Overview Overview
******** ********
Semihosting is a mechanism that enables code running on ARM and RISC-V targets Semihosting is a mechanism that enables code running on ARM, RISC-V and Xtensa
to communicate and use the Input/Output facilities on a host computer that is targets to communicate and use the Input/Output facilities on a host computer
running a debugger or emulator. that is running a debugger or emulator.
More complete documentation on the available functionality is available at the More complete documentation on the available functionality is available at the
`ARM Github documentation`_. `ARM Github documentation`_.
@ -16,6 +16,9 @@ More complete documentation on the available functionality is available at the
The RISC-V functionality borrows from the ARM definitions, as described at the The RISC-V functionality borrows from the ARM definitions, as described at the
`RISC-V Github documentation`_. `RISC-V Github documentation`_.
Semihosting implementation on Xtensa supports GDB File-I/O extension, which is
explained in `GDB File-I/O Remote Protocol`_.
File Operations File Operations
*************** ***************
@ -66,3 +69,4 @@ API Reference
.. _ARM Github documentation: https://github.com/ARM-software/abi-aa/blob/main/semihosting/semihosting.rst .. _ARM Github documentation: https://github.com/ARM-software/abi-aa/blob/main/semihosting/semihosting.rst
.. _RISC-V Github documentation: https://github.com/riscv/riscv-semihosting-spec/blob/main/riscv-semihosting-spec.adoc .. _RISC-V Github documentation: https://github.com/riscv/riscv-semihosting-spec/blob/main/riscv-semihosting-spec.adoc
.. _GDB File-I/O Remote Protocol: https://sourceware.org/gdb/current/onlinedocs/gdb.html/File_002dI_002fO-Remote-Protocol-Extension.html