Hi,

this patch series implements semihosting as done in the golden Infineon
simulator 'TSIM'. 'TSIM' supports different semihosting variants, specific to
various toolchain vendors. Only the GNU toolchain with Newlib [1] is freely
available, thus I only implemented semihosting for GNU. This port of Newlib is
also available in the 'debian-tricore-cross.docker' image.

To build and run a binary with semihosting, one only has to link against libos, i.e.

tricore-gcc test.c -los -o test.elf
qemu-system-tricore -M tricore_testboard -semihosting -nographic -kernel test.elf

Cheers,
Bastian

[1] https://github.com/bkoppelmann/package_940/tree/main/newlib/libgloss/tricore

Bastian Koppelmann (6):
  target/tricore: Add semihosting stub
  target/tricore: Add read and write semihosting calls
  target/tricore: Add lseek semihosting call
  target/tricore: Add close semihosting call
  target/tricore: Add open and creat semihosting calls
  target/tricore: Enable semihosting

 configs/devices/tricore-softmmu/default.mak |   1 +
 docs/about/emulation.rst                    |   3 +
 qemu-options.hx                             |   3 +-
 target/tricore/helper.h                     |   1 +
 target/tricore/meson.build                  |   1 +
 target/tricore/translate.c                  |  13 +-
 target/tricore/tricore-semi.c               | 380 ++++++++++++++++++++
 7 files changed, 399 insertions(+), 3 deletions(-)
 create mode 100644 target/tricore/tricore-semi.c

-- 
2.42.0